Friday, June 7, 2019
Development and Globalisation Essay Example for Free
instruction and internationalization EssayGDP- Gross Domestic Product the value of completely the goods and go produced in a country in a yr, in $US, usually expressed as per capita (per person). PPP (purchasing post parity)* figures atomic tally 18 more consumptionful. *Adjusted for loss of living GNP- The append value of goods and work produced by single country in a year, plus all net income earned from all overseas sources, in $US. HDI- Human Development Index It is a summary composite index that measures a countrys average achievements in tierce basic aspects of human increase health, knowledge, and a decent standard of living. Life Expectancy Literacy Rate Standard of Living (measured in GDP per capita) It gives a more complete picture of discip distinction of a country than GDP alone as it considers loving factors and non just economic factors. Development Continuum Originally there were three groupings that make up the emergence continuum, they wer e First World (those developed countries that had a democratic government and a strong thrift) Second World (communist countries) three World (UN developed countries)How incessantly as cadence has gone on newer economies cave in started to develop caused by different development patterns and speeds. The Development gap The gap among rich and wretched countries nearly commonly, the gap is thought of in terms of income/economics It to a fault social, environmental and even political aspects There was a suggested North/S verbotenh divide generatorating from the Brandt underwrite in 1980, where the north accounted for 80% of GDP but only 20% of the population however this too requires some artistic licence and is a real general way of dividing countries.There ar more accurate ways of grouping countries as listed be pathetic and as countries move through the development continuum countries race from one category to an some other substantial (MDCs the just about sa lutary developed countries eg. UK) Developing (Countries which are undergoing development arguably they all are. Eg. Malaysia) LDCs (Least Developed Countries eg. Ethiopia) NICs (Newly Industrialised Countries Have just finished development (10 years or so) Eg. China) RICs (Recently Industrialised Countries Further behind than the NICs eg. Dubai) Centrally think Economies (The few re maining communist countries eg. North Korea) crude Rich Countries (Countries rich in oil eg. Saudi Arabia) Causes for the Development Gap Colonialisation colonial powers took resources from poorer countries Price of commodities is a good deal controlled by TNCs ensuring high profits for MEDC firms and starting time prices paid to LEDC producers F glory throw exercise up in reaction to this. LEDCs are now primary producers producing low cost commodities, e. g. bananas Primary commodities realise fallen in price, or stayed s tea leafdy, while commodities they need has increase, e. . oil What is precludeing the Development gap from closing? Many LEDCs main assiduity is as primary producers generally low profit Internatnioal change over dominated by TNCs Rapid The Asian Tigers Who or what are the Asian Tigers? Asian economies that sw stomach progressed economically at much(prenominal) substantial order that deal come to rival the earning capacity and quality of living of those being start- foundation countries Taiwan, Hong Kong, Singapore and South Korea. Globalisation Globalisation The increased inter-connection in the humanitys economic, cultural and political systems. Positives Negatives Allowed the movement of volume more easily Uncontrolled migration Increased foreign job Inequality in wealth More access to nourishment, services, healthcare etc. ll over the world Heavy environmental cost Loss of countries individual stopping points, global cutters Globalisation began in the 19th century as there was the out evolution of movement o f people and goods Increase in independence Increase in trade as well as the spread of assiduity Beginning of Trans National Corporations. Globalisation continued in the 20th century and was shaped by a number of factors including 1.Emergence of disengage merchandises ( metropolisist sparing) 2. Deregulation of world financial markets 3. The organization of the General Agreements of Tariffs and Trade (GATT) the WTO which sought to lower trade barriers. 4. The emergence of trade blocs 5. The establishment of the IMF and the World Bank 6. Development of global marketing and the continuing rise of TNCs. Flows Capital o ICT allows low-priced, reliable and almost instantaneous communication o Allows dowry-out information o Allows transfer of capital o Allows Marketing around the world Labour o Improved transport for people Size of transport craft o Low cost airlines o High speed rail links o Specialised workers- doctors, ICT etc. o Un expert workers Products and services o Integrated networks o Goods handling o Computing logistics o Container revolution o Improved transport for goods o Global marketing, the world as one market and create intersections that fit various regional market places e. g. coca- weed and McDonalds Patterns of production, distribution and consumption Manufacturing has gone from developed countries to lower take economies. This is known as the GLOBAL SHIFT, which is brought about by FDI by TNCs.Many LEDCS deal benefited from the transfer of technology which has meant these countries cease raise their productivity without raising their wages to the aim of the developed countries. This has pass to the de-industrialisation of richer countries and the focus on tertiary and quaternary industry. There has also been outsourcing of service operations, such(prenominal) as call centres, Mumbai, this extends the influence on a global scale also the employment cost are a lot lower even though there is a highly enlightened workforce. Pos itive and negatives of the global shift Positives for MEDCs Negatives for MEDCs Movement of polluting industries away from their country Could lead to wide spread unemployment growth in LEDCs may lead to accept for exports from MEDCs Loss of skills Cheaper imports raise keep the cost of living trim benefiting the retail Negative multiplier effect sector Large gap between skilled and unskilled workers who may experience Labour market flexibility and efficiency extreme redeployment differences Development of new technologies leading to investment deindustrialisation of some areas, such as the North Help to reduce inflation Positives for LEDCs and NICs Negatives for LEDCs Development of new industries Rapid urbanisation and rural-urban migration Increased employment Westernised approach to economy Helps to reduce development gap Increased environmental damage die to polluting industries Increased FDI and investment which can lead to ameliorated services such as Explo itation of advertise understructure, health care and education Disruptive social impacts Increased exports answers BoPs, and increases income and GDP Over-dependant on one industry New technologies Destabilises food supplies, little agriculture health and safety issues because of tax legislation Patterns of production and work outes In manufacturing there has been a global shift of marketing from MDCs to LDCs.This leads to Foreign Direct Investment (FDI) by the TNCs. This has led to the de-industrialization of MDCs but means that they can also be more productive due to the transfer of technology. Newly Industrialised Countries (NICs) First figure Asian Tigers (Taiwan, South Korea, Hong Kong and Singapore) started to appear in the 1960s, as developed countries looked at their less developed neighbours Rapid industrialisation due to the increased spread of TNCs. They share similar characteristics which allowed for such industrialisation Large populations Well educate d populations Culture work ethic little rigid laws on health and safety regimen support through loans and grants Rely less on foreign support and gravel up their own businesses such as the Chaebols in South Korea, comprising of companies such as Samsung, LG and Hyundai This has now become a multinational and located in several different countries. Second Phase As wage prices increased in the primary TNCs (The Asian Tigers) Countries that could offer lower wage prices such as Malaysia, Infatheresia, The Philippines and Thailand, Mexico and Brazil Third Phase China and India, Turkey, South Africa and the Philippines China has seen the scurrying rate of economic ingathering of any country Indias industry is heavily based around services which accounted for 50% of its hit GDP. New TNCs are now being set up in Indian such as Infosys, Bangalore. Positives of India Constraints of India Large English speaking population Other countries are beginning to compete Costs 37% lower than China Negative reaction in MEDCs Costs 17% lower than Malaysia Rising wage rates maestro salaries ? of UK and USA High cost of training Low telecommunication costs Negative impacts on quality 24 hour working to fit with time differences Corruption and swanruptcy Huge labor force for labor intensive jobs e. g. all centers Command economy, governemtn speding on subsidies rather than investment IT college graduates, 2 million/year Infrastructure beyond major cities is poor Literacy only 61% Growth in the 21st Century appear Economies account for 70% of the global population, countries including the BRICs (Brazil, Russia India and China) as well as countries such as the UAE and South Africa. The increase has been due to Raise living standards Increase opportunities for the population Increase FDI Become more of a world player with market to an international standard Countries at genuinely low aims of economic development LDCs The countries were outlined by the United Nations and of the top 50 33 are in Sub-Saharan Africa. They are defined by the following Low incomes ($800 GDP per capita over 3 years) Human resource weakness, nutrition, health, education and literacy sparing vulnerability shown by signs of dependency on one industry Many of them suffer from widespread conflict, disease, geographical disadvantages, urbanisation and fast urban growth (demographically speaking). gauge of Life Most of the population cannot afford basic immunities Resources of such countries are not evenly distributed. Attempts to reduce meagreness High population growth rate means that numbers living in extreme poverty are increasing. Many of these countries depend on FDI Debt From the 1970s on contendds some countries ready themselves in a debt crisis because the borrowed sizeable meats from the developed world. For many countries at low levels of economic development that breaking uninvolved of poverty can only ever be a vision. There a re certain policies being put in place by the IMF and the World Bank to help free the HIPCs They have returnd debt informality and interest free loans. SAPs Structural adjustment programmes o Government disbursal cutbacks to fund debt repayments o Mexico was the first country o 3 main aims- ? Promote exports- integration and liberalisation ? Reduce government clearing- privatisation and cutting costs ? Encourage foreign investment o Both intermediate and poor countries have had SAPs applied o Some success but SAPs could make matters worse oddly for the poorest people because- Loss of credit and subsidies from the government ? Food production locomote ? Devaluation of property leads to dramatic rises in prices ? Less spending on health and education by government Another scheme, the Multilateral Debt Relief Initiative (MDRI) Aimed to actuate the debt of the HIPCs per capita income US$380 a year or less would be eligible for MDRI debt relief from the IMFs resources Socia l Problems Lack of income, healthcare, education, sanitation etc. The Millennium Development Goals were set up specifically to help countries out of the cycle of poverty however they dont look well to be completed in 2015 (the pilot light target).Global, Social and Economic Groupings Trade Bloc is a group of nations who have joined to stimulate trade and benefit from economic cooperation. The countries involved agree to free trade between them but impose tariffs on goods from countries outside the bloc. Made for a strain of reasons To notwithstanding socio-economic development To increase alliances and trade To allow free movement To prevent war Types of groupings take- Free trade areas- tariffs and quotas are reduced on goods between fragments and restrictions are put in place for goods approach path in to the area e. g. NAFTA Customs unions- tariff on imports from outside the group e. g.Mercosur Common Markets- like customs unions but with greater freedom of movemen t of labor party and capital, e. g. previously EU, current example East African Common Market Economic Unions-all of the above as well as member states are also required to adopt common polices in areas such as agriculture (CAP) fisheries, transport, pollution (Kyoto agreement), industry, energy and regional development e. g. EU Positives and negatives of trade blocs Positives Negatives Greater feel of peace between member nations. Having to share economic resources Faster and smoother economic development Many countries go forth have to pay a large sum of money regularly to be in a Trade barriers removed trade bloc Higher standard of living. Elites can h centenarian a disproportionate amount of power. Certain areas of a national economy can be supported eg. Agriculture If one courty falls in to ecomic crisis the rest of the member states are through the CAP. effected large number seeking work can move between member states EU. Non-member states badly affected, lack of trade Possibility of a common currency- Euro Loss of sovereignty Greater political influence Loss of some finacail controls e. g. European central bank If countries become indebted member states can help bail out, Greece, Ireland. Aspects of globalisation TNCsTransnational Corporations are companies that operate in over two countries usually having their research and headquarters in the country of origin and locating the manufacturing plants overseas. As an arranging becomes more global, regional RD and headquarters will develop. TNCs can be split in to three different groups according to what industry they are- Resource extraction o Mining, gas extraction and oil producing o ExxonMobil, Royal Dutch Shell and BP Manufacturing o High-tech ? Computers, microelectronics, pharmaceuticals ? Hewlett Packard, GlaxoSmithKline and AstraZeneca o Consumer goods ? motor vehicles, televisions and other electrical goods Many of these are assembly industries ? Ford, General Motors, BMW , Sony o Mass produced consumer goods ? Cigarettes, drinks, breakfast cereals, cosmetics and toiletries ? Coca-Cola, Kelloggs, Unilever, Heinz Service operations o Banking/insurance, advertising, freight transport, hotel chains, fast food outlets, retailers o Barclays, AXA, McDonalds and Tesco Growth of TNCs Why do TNCs expand to different countries? Larger populations with cheaper Labour Costs Better government policies such as grants, lower taxes and subsidies Less stringent rules on employment and pollution Fewer restrictions due to trade barriers Greater supply of raw materials To take advantage of trade in spite of appearance trade blocs Allowing them to grow thereby achieving economies of scale, reducing costs, finance new investment and compete in global markets Allow them to set up in markets that they want to interchange in To acquire geographical flexibility so that they can shift resources and production between locations to maximise profits To serve a global m arket, TNCs may globalise production by- Produce for the market in which the plant is situated implement one plant to produce for a number of countries Use integrated production Source parts in places where they assemble their products close to the market, GLOCALISATION Impacts of TNCs on a host country Positive Impacts Negative Impacts Employment emulation Injection of capital into the economy Adverse effects on local companies which qualification not be as efficient More disposable income will create a demand for more milieual concerns housing, transport and local services Less stringent pollution laws so more pollution allowed multiplier factor Effect Labour exploitation Investment by a TNC can trigger more employment by Exploit cheap, flexiable, non-unionised labour forces in developing countries cumulative causation bringing greater wealth to the Minimum age area Urbanisation New working methods Factories built in major urban centres leads to younger workers migration to the area Transfer of technology will create a more skilled Negative effects on the rural areas workforce. Removal of capital JIT developed Profit back to country of origin Escape Tariffs/trade barriers e. g.Nissan in Outside decision making Sunderland Plans effecting the development of plants are made in host country to boost profitability To take advantage of government incentives, subsides,Little consiereation for local people EPZs (export processing zones) etc. Dependancy on TNC Lower costs especially labor More westerniese approach to life To discover foreign markets more trenchantly To exploit mineral and other resources Development Issues within the world Trade vs AidTrade is deemed as the more sustainable path out of the two to economic development as it helps to promote the growth in the volume and value of goods, leading to jobs and greater incomes, some of this income will help to picture domestic demand leading to investment and the multiplie r effect. This will also lead to rising living standards and gaining of skills by local people withal it relies on three factors Adoption of capitalism Economic growth to trickle don so everyone benefits Promotion of free trade This is a similar path that was taken by the MDCs and more recently the NICs. However many of these NICs had largely enduring governments, a well educated workforce and they employed protectionist policies to stimulate growth e. g. tariffs and import quotas. However there are slake problems with trade for a variety of reasons They cannot be competitive in world markets as they need to invest in equipment, technology and training to make business productive and then pedestal etc. Schemes like the CAP undercut mainly agriculturally based LDCs Wealth does not always trickle down to those who need it, like aid. Debts mean they would have to make millions before they made profit and due to the cuts imposed by the World Bank and IMF it oft means there ar e public spending cuts especially on health care and education Aid can be either 1. Bilateral from government to government. 2. Multilateral Where collective governments donate to an organisation (such as the World bank) who the distributes it to suffering countries. 3. Voluntary Where small NGOs send workers to help. NGOs such as OxfamAid is not always in the form of money sometimes it is in the form of goods or technical assistance. There are also several ways aid can be delivered Tied aid o Will constrain the power of nations and may eventually cause resentment Short-term aid o Usually following an emergency such as earthquakes or tsunamis o This can be help with rescue operations o Medical supplies, shelter, food and water Long-term development projects o up(p) food availability and farming methods o Helping to provide improved shelter o Health care and education o Developing rectify livelihoods and improving income o CAFOD, Catholic Agency For Overseas Development Top down aid Throwing money at a country and allowing them to get on with it. o It usually focuses on large scale, expensive projects which are unsuitable for the local community. , such as HEP projects e. g. Nepal o It often doesnt go to the people who need it most o Usually tied Bottom up o More helpful to the local community however still bring their problems. o Small scale o Treat the individuals as individuals with creativity and intelligence o They work with people to create what the community most demand and supply the materials o They can undercut local business. However aid is not perfect and may critics say- Aid does not reach those who need it the most, it is kept at the top by the government Aid is often used ineffectively on large scale, expensive projects which are often left uncompleted Sometimes countries dont even have the correct infrastructure to use the aid effectively Dependency can be created which is often not sustainable is aid is a large proportion of nati onal income Tied aid comes with strings attached, in some cases with every sawbuck given in aid $7 is given in return Economic vs. Environmental Sustainability Development that meets the needs of to twenty-four hour period without compromising the needs of tomorrow This would be achieved by Human potential being improved The environment is used and managed to supply people on a long-term basis Implies social justice as well as long term environmental sustainability The capacity of the environment to provide resources and absorb increasing levels of pollution is the critical wand controlling how far population can increase and economies expand sustainably The Rio Earth summit set out the following points for each aspect of sustainability. Environmental Principles People should be at the centre of concerns States have the right to exploit their own environment but should not damage that of others Protecting the environment is integral to development People should be informed of projections for the future as well as the current environmental situation There should be environmental legislation and standards within states Laws should be enacted regarding liability for pollution The movement of substances that are harmful to others should be restricted States should warn neighbours of any environmental unease EIAs (Environmental Impact Assessments) should be carried out on all major plans Economic Principles The right to development must be fulfilled so as to meet development and environmental needs of present and future generations States should work together to eradicate poverty in order to decrease disparities in living standards The needs of the poorest countries should be put first Unsustainable production and consumption patterns should be eliminated States should cooperate to restore the earths ecosystem Scientific information and innovative technologies should be transferred to improve understanding States should support an surface econo mic system, with few trade barriers and tariffs National authorities should endeavour to promote the internationalism of environmental costs, taking into account that the polluter should pay For anything to be effective it must strike the right balance between the three core principles economic, social and environmental. Sustainable touristry myth or reality? As tourism is an increasingly expanding, billion dollar industry, it has increasingly been looked at to become more sustainable. Up until now it has followed this pattern The environment attracts tourists for its attractions The money spent should help to defend these featuresHowever as tourist flows increase it starts to do more harm than good, particularly to small areas which cant deal with the massive influx, this can lead to the destruction of farm land to golf courses, and set asideing natural habitats such as coral reefs, destroyed by water sports ,e. g. Philippines . Sustainable tourism seeks not to destroy what it sets out to explore It attempts to make sure that It preserves natural resources for future generations. The local communities and their culture are recognised as the most important in the tourist sector Economic benefits of tourism must partly go to those who are local to the area Everything is guided by the wishes of local people and communities At the Rio Earth Summit an environmental checklist was drawn up to show how the tourism industry could become more sustainable, these included Waste minimisation, land use, re-use and recycling naught efficiency, conservation and management Transport Water (freshwater and waste) Land use planning and management Involvement of all stakeholders in the planning Involvement of staff, customers and communities in environmental issues Sustainable tourism is an industry committed to making a low impact on the natural environment and local culture, while helping to generate income and employment for local people. Tourist can help by Being informed of the local culture, politics and economy Respecting local cultures Contributing to local cultures and security deposit Supporting local businesses and traditional values Use the least amount of local resources Ecotourism Is one of the fastest growing sectors within tourism An economic process by which rare and beautiful ecosystems and cultural attractions are marketed internationally to attract tourists Planning and management is an important factor o Capacity is managed o Encourages conservation, by educating local people and tourists o Focuses on the environment Criticised for being egotourism in some cases. Sustainable ecotourism must o Have a limit to the number of visitors to sustain the environment o launch up and run in cooperation with local people Case Studies Measuring Development- HDI HDI = 1/3 (life expectancy index) + 1/3 (education index)+ 1/3 (GDP index) Advantages Disadvantages Political competitiveness Does not take into account poverty More factors and reliable ones PPP values change very quickly, inaccurate or misleading. Easy and cheap to collect data Little sense of income distribution Sign of welfare in the future, improving health and education, Quality of life does not seem to be that closely linked supply-side policies which can indicate the long-term patterns of AS Doesnt take account like war or political oppression. curve Based on normative economics. The success of government policy Other measures such as access to internet dexterity be more important. Easily comparable to other countries Changes over time ceteris paribus Comparing 2 countries, Nepal and the UK Measure UK Nepal HDI 28/187 157/187 Life expectancy 80. 68. 8 expect years of schooling 16. 1 8. 8 GNI per capita, PPP adjusted 33,296 1,160 Pop. Living on $1. 25 per day % 0 78. 1 Population with at least secondary education , female 1. 015 0. 48 male Sustainability, Change in forest area (%) 9. 8 -24. 5 % of population liv ing in urban areas 79. 8 19. 2 Sub Saharan Africa A country at low levels of economic development Sub Saharan Africa contains many countries with the lowest HDI be in the world. Many hold backs from development including war, disease, famine, debt, lack of infrastructure etc. They need large amounts of FDI that will not leave them in a worse situation than when they started. HDI, lowest be are Mali, Sierra Leone and Niger (all with an average of 0. 33) The top, ranked 119th and 120th in the world were Gabon and South Africa. TNC-Barbie in Taiwan -global shift of manufacturing Barbie, an American company Mattel , was produced a Japan in 1959 Has seen a global shift in manufacturing since it started. They moved to Taiwan in the 1960s to take advantage of cheap labour costs and increased scale of production. At its peak Taiwan alone made more than 50% of all Barbie dolls in the world. Within 20 years Taiwans incomes began to rise which then led to Barbie moving somewhere e lse Mattel opened its first factory in China in 1987, wage prices were much lower and gradually production was mover there. Today Mattel produces Barbies in China, Indonesia and Malaysia taking advantage of the second stage of NICs, the Tiger Cubs. Taiwan has further benefited from globalisation, as it is now home to companies that manufacture most computers and MP3 players such as BenQ TNC-Coca Cola Global Marketing A company with a single product in which minor elements are tweaked for a different market. The company uses the same formulas, one with gelt and one with Corn Syrup for different markets. The bottle stick out is the same and is regulated depending on different countries standards. The only countries in the world that do not sell Coca Cola are Iceland, North Korea, and Antarctica. It is not sold in Iceland because all bottles must be the same shape as there is a large recycling project and coca cola refuse to change the shape of their bottle as it is part of th eir brand Labour costs may be lower in some countries, especially LEDC countries. Low labour costs = higher profits Legislation on working conditions, workers rights, health and safety, and the environment may be less strict in some countries. Relaxed legislation = lower overheads = more profit. Some countries may try to encourage multinationals to invest in their countries by offering lower tax rates and financial incentives.More favourable taxation = lower overheads = more profits. Unilever Unilever is a very widespread (branches in 90 countries) include most countries in N S America, Europe, Australasia, Russia, China, India, a number of African countries = MEDCs, NICs and some LEDCs Sales also very widespread A lot of African countries (many LEDCs and LLEDCs), Greenland, some countries which were part of the old Soviet Union (Kazakhstan, Uzbekistan, Turkmenistan, Tajikstan) Very few countries where Unilever has no presence Asian Tiger- South Korea 13th largest economy Strong government Highly skilled and motivated workforce Large amounts of trade with a positive BoPProblems Move to democracy takes time Large aging population Unequal pay for women and poor working conditions for 52 hours a week Pollution with poor construction in infrastructure, roads and sewage BRIC economies It is said that these countries will be dominant by 2050, these brick economies, dont just rely on export industries like the 1st generation NICs. Brazil emerging economy President Lula, who began in 2003 took the economy out of dept and is now a stable country Generates $1. 5 trillion GDP/year Reliable power, with sustainable sources, such as hydro electric power, sugar cane, bio fuels, sustainable in own Tupi oil fields FDI is the 4th largest in the world, $45 billion each year Very easy to communicate with Emerging middle class Good highly skilled work force However there are some areas where Brazil will need to improve if its development is to continue being sustainable- Will become a increasingly aging population Destruction of the rainforest Increasing cost of manufacturing hapless infrastructure Unequal society Slow national growth Increased crime and corruption 25% of the population live in poverty, favelas, Sao Paulo China Third Stage of NIC Development In 1978 China began to follow the path of development of the Asian Tigers through an export driven road to development. Communist control was relaxed to allow this to do so. Foreign investment and joint ventures was encouraged. The internationalisation of the Chinese economy is also called the GUANXI NETWORK referring to the connections that exist between Chinese people and companies scattered all around the world In order to attract foreign industry in SE China, 14 open coastal cities and 5 Special Economic Zones were set up. They allow tax grants which would give more profit and were in favourable locations, geographically, to work. Labour was 80% cheaper in these areas There was a large amount of FDI for the bulk of the 21st Century Receiving up to $50 million per year. In 2006 they received $63 billion, their highest recorded figure. Sustained growth of up to 10% one of the highest in the world. China became part of the WTO meaning that trade went from just over $250 billion to just under $1 trillion, almost quadrupling as they got greater access to global markets. Problems Dramatic gap between rich and poor Huge rural/urban migration has left thousands in the countryside isolated as well as a decrease in agriculture meaning that poverty and famine has spread. Deterioration of environment and use of natural resources Dependent on the economy of the perverter Putting other populations before their own Development of two Chinas, east and westChongqing largest urban industrial city in the south-western part of china, 32 million people A major focus on migration and of the western development policy South of the Gorges Dam Popul ation grows by 500,000 people a year Chicago of china Heavy industry dominates Large pollution problems, air sewage 2000 tonnes of waste a day India NIC driven by services Many people think that the Indian service sector is driven by call centres however its involvement in the service sector it accounts for 50% of GDP as there is a high population of skilled workers. Software and IT companies have been attracted to India because- Second-largest English speaking human resource in the world Investment friendly and supportive government politics Good infrastructure for power, transport and data communication Worlds third largest brain bank Stable democratic with over 50 year of independence Large market size Investment and tax incentives for exports in certain sectors such as electronics, telecom, software and RD The UK and USA has fuelled the service sector in India as Indians migrated to gain skills which they would take back to their home country. Such skills were used to set up companies like Infosys which is now a TNC based in Bangalore. Bangalore has become the centre of ICT because- First state to set up engineering collages First t set up a technology university Grants and tax incentives for the IT industry 1991 software technology park was built Now over 6 technology place Infosys one of the largest software companies in India Founded in 1981 and had first foreign clients by 1987 Overseas offices in Boston and in MK 455 of workforce based in Bangalore Growth in the 21st century Dubai An RIC Dubai is located in the United Arab Emirates Globally central as it is half way between London and Sigapore Fastest growing economy Its economy boomed upon the discovery of oil in the 1960s. There was a growth of 300% between 1968 and 1975. There was rapid immigration. To make itself less parasitical on oil, Dubai invested in new infrastructure which attracted FDI and now Dubais economy is heavily based around tourism as well as banking Oil and Gas currently occupy less than 5%. Borrowed money to fund many projects One of the countrys most effected by 2008 market crash, massive inflation problems Chinese and Indian banks brought a lot of Dubais debts Social problems Vast numbers of immigrants Poor working conditions, 20 hour day in some cases, because people took out loans to get to Dubai, and now due to little work they have to work all hours to get as much money as they can Live in poor conditions in tent cities out of the actual city Passports are taken by employers on arrival Environmental problems High electricity cost and rising carbon emissions Sewage because there is not enough water, as the city is in a desert, water is more expensive than oil Nuclear waste Adu Dhabi, must look to help out by providing solar energy Countries facing low levels of economic development Nepal One of the poorest countries in the world 157/177 in HDI Its GDP per capita is also one of the lowest at $1,049 Shortage of e nergy, supplies Little money to spend on development Due to relief little transport infrastructure, remote communities Mainly subsistence farming and tourism 78. 1% of the population live on less than $1. 25 a day Little education and health care provisions HIPC- Tanzania 40% of the population live below the poverty line HDI is ranked 152 Life expectancy is 58. 2 Annual GDP per capita is $800 75% of employment is based on agriculture Literacy rate is 64% Reasons for poverty Topography and climatic conditions limit cultivated crops to only 4% of the land area Industry- mainly limited to agricultural products and light consumer goods Dependant on agriculture which accounts for half of GDP Products include coffee, cotton, tea, tobacco, cashews and sisal which are highly competitive and have falling prices Tourism is booming especially in the National Parks Attempts to help Government a national poverty eradicated strategy- to reduce abject poverty 50% by 2010 The World Bank, IMF and bilateral donors have provided funds to rehabilitate Tanzanias deteriorated economic infrastructure Structural Adjustment Policies, SAPs, poverty reduction strategy papers Vision 2025 programme set the goals of a high quality of livelihood by year 2025 peace, stability and unity a well educated society and a competitive economy based on sustainable growth and integrity UN MDGs The results of attempts to help Tanzania Not improved quality of life Income and welfare indicators fell Even more dependent on foreign aid Increased environmental damage Pick up in industrial practice including gold and natural gas Increase private sector growth Recent debt relief in Tanzania One of the poorest countries in Africa even though it had some of its international debt written off $3 billion will be discounted over the beside 20 years Tanzanias total international borrowings of more than $7 billion Socio-Economic Groupings NAFTA USA, Canada, Mexico Set up in 1994 Aims To eliminate trade tariffs between the three countries, pushed by the establishment of other socio-economic groupings like the EU. Mexico saw it as the best option as it had built up debt in previous years. Pros Cons Trade between member countries tripled in the first 13 years. Canada has been affected by the US increase Increased employment in the USA as manufacturing grew Some US jobs have been lost as the plants have moved to Mexico Mexico got increased FDI as other countries wanted to locate inside Dumping in Mexico NAFTA. Mexico is being put-upon because o less rigid pollution laws which affects surrounding countries EU 27 member states, set up in 1957 as the European Economic connection Aims Promote social and economic progress amongst member states Have more government influence Introduce EU citizenship Prevent war Create improve laws Positive impacts Negative impacts Group activity on waste, pollution control and climate change Loss of sovereignty over some decisions Common currency Greece and Spain situation Large labour market due to ease of movement Sharing seek grounds CAP support Power of elite love-in-idleness in EU Small areas fell isolated Unilever TNC Set up in 1890 by William Hesker Lever, who owned a soap company which revolutionised Victorian hygiene Unilever was formed by the merger of the Dutch margarine producer Margarine Unie as they had the common raw material manage oil In 1937 Lipton tea was acquired and in 1957 birds eye joined Colworth House facility near Sharnbrook continued research efforts in food preservation, animal nutrition and health problems associated with toothpaste, shampoo and other personal products. It is one of several R D centres In 2008, the companies had over 300 manufacturing sites in more than 100 countries across every continent Unilever employs over 170,000 people and has annual company revenue of over $50 billion in 2007. Unilever has had problems with animal testing, child labour and deforestation due to the use of palm oil CAFOD- long term and short term aid Aims are to promote long-term development respond to emergencies raise public awareness of the causes of poverty speak out on behalf of poor communities and promote social justiceLong-term aid Improving food availability and farming methods Helping to provide improved shelter Health care and education Developing better livelihoods and improving income Short-term aid Provide aid to disaster stricken countries Set up temporary shelters for those left homeless Democratic Republic of Congo (Kinshasa Goma), Ethiopia, Kenya Swaziland top Down Aid Top down development is usually concentrated as often hundreds of thousands of peoples needs need to be catered for and it is difficult to satisfy everyone. The ideal goal is a communist state with a one size fits all approach. Swaziland is in Southern Africa. It is ranked very low in the world for human development. Many individual concerns to de al with which shortened the country, AIDs, famine and drought. The number of orphans was increasing as the death rate did correspondingly. Several branches of the United Nations which were trying to help them such as the UN food programme, and a many NGOs. They were distributing imported food to hundreds of thousands of people which was ultimately a good thing. However, the farmers of the local area were not able to sell the produce that they grew hence not able to take advantage of the wet season that blessed them. There was also a state of dependency Difficult to draw the line between those who should receive aid and those who did not. Other top down aid include large scale projects such as building dams and HEP place like those proposed in Nepal, this can lead to the loss of valuable farm land and can limit the water downstream, leading to widespread droughts. Nepal, FoST Bottom Up Aid Foundation of sustainable technologies Treats people as individuals with ideas and creativity. Due to the lack of energy in Nepal and the reliance on wood, leading to deforestation and help problems in the home due to the amounts of smoke Subsides the purchase of products including solar cookers and no-smoke indoor cookers Educates people on how to make briquettes, which produce no smoke from waste, to prevent deforestation However there are limited resources to make the solar cookers and there for they are limited and rely on donations Not every community has the money to buy the equipment or has access to finding out about products Not sustainable in the long run if the donations stop Overall top down and git up development are both ways of narrowing the development gap, the gap between rich and poor countries. Both, like anything in life have pros and cons however the possible way forward is through micro-credit loans which give people the credit and respect that they deserve.This creates a successful and sustainable way of life and helps to elevate indi viduals out of poverty. Economic vs. Environmental Sustainability Holes bay Economic Environmental High unemployment especially in Hamworthy gate Ramsar and SSSI sites rare birds and invertebrates 30 Ha of unused land, power station site 2nd largest natural harbor in the world Poor access to Poole town centre The construction of the twin sails bridge Environment- direct flow around the support pillars of the bridge causing deposition behind the pillars, May affect the tidal flats within holes bay, and Poole harbour Sediment change state trapped within Holes bay building up the marshes Tidal salt marshes, to the build up of humus causing the build up of peat rising the level of the and creating fresh water marshes within Holes bay Poole harbours marshes could decrease in size Destroying many habitats for birds invertebrates and plants alike. Economic- Greatly over budget with its total cost coming in at over ? 37m Engineers spotted a large crack in the surface of the bri dge making it unsuitable for use The development of the power station site will also cause an increase drain on local recourses such as schools and the area might not be able to cope, Increase the flow of traffic over the bridges. Not enough jobs generated in the area Increased population density and increased unemployment. Increased crime Brazil- Curitiba 2 million people in the population city wide service to recycle products Recycling and garbage system prevent waste issues, organic and nonorganic, with two different trucks for different types of rubbish The rubbish is sorted and distributed and reused this means that 2/3 of rubbish is recycled It also creates more jobs to help reduce unemployment Jaime Lerner, was an architect and later became mayor and designed the current layout of Curitiba The city has changed from being an agricultural area to a more industrial city flood lamp problems have also been solved by building the parks on the flood plains and making art ificial river banks around them this also prevents squatting and slums appearing in the parks Is home to many multinational industries, such as Nissan, Renault, Volkswagen, Audi, Volvo, HSBC, Siemens, ExxonMobil, Electrolux and Kraft Foods The per capita income for the city is $ 17,977 Sustainable tourism Nepal concentrated in certain areas such as Khumbu, Chitwan National Park, Annapurna National Park and the Sagarmartha National Park, The number of tourists increasing from 526,705 in 2007 to 710,547 in 2011, Actions must be taken in order to preserve Nepal. Problems with air pollution from the transport of tourists and fires getting trapped in the valleys due to the high mountains Increased demand for water and food supplies, taking away goods from the locals The same tracks are used by all of the tourists, erosion and destabilises the soil Increased the risk of landslides. Some tourists are also not respectful of peoples culture and the unduelife Poor sewage disposal Khumbu region problem with the amount of waste generated by trekking teams 500kg per team all waste must be taken down the mountain rubbish there have been clean up operations carried out during training and acclimatisation time of people who wish to climb Mt. Everest for people to pay the Sherpas to carry down peoples rubbish Nepalese Government has begun charging deposits on tourists and are only returned if groups bring down their own rubbish Nepalese Government that they should limit the number of tourists Dismissed as it has been concluded that this will bring more harm than good, by limiting one of the countrys biggest industries they could face increased widespread poverty. Kenya, Kigio Tourism is the 2nd largest contributor of GNP after agriculture. One example of where agriculture has been replaced by tourism is Kigio. Kigio Wildlife Conservancy is a 3,500-acre defend Conservancy 2 hours drive from Nairobi. Originally a cattle ranch, sold by the family to the local community who after a few years decided to drop by the wayside cattle ranching in favour of wildlife conservation. The community now receives a regular income Conservancy fee each guest pays helps towards the maintenance of the conservancy. Wide ranging habitats Many wild animals, honey badger, and over 200 bird species Protecting nearly 100 species of indigenous plant species which are being destroyed outside the conservancy. The Conservancy is at the point of ecotourism in the Rift Valley lakes area.Guests are encouraged to move in low impact activities o guided nature/bird walks, o cycling, fishing o Day or night game drives are conducted in open-sided 44 vehicles Lodges work closely with the local community and support several enterprises, schools and an orphanage. Guests can visit a group of widows that craft sisal baskets, a group that makes jewellery from recycled paper and a rug weaving factory. The lodges only sell what is made by the community and pay a fair p rice. A large percentage of the price is donated to the community fund. Every year, children from the local community and schools are invited to participate in ecotourism workshops To protect and improve their environment.
Thursday, June 6, 2019
Academic and Professional Goals Essay Example for Free
Academic and Professional Goals EssayAccording to Waldens University the mission statement states Walden University provides a diverse biotic community of career professionals with the opportunity to transform themselves as scholar-practitioners so that they can effect positive social change. (Laureate, 2013)According to Waldens University the vision statement states Walden University envisions a distinctively different 21st-century learning community where knowledge is judged worthy to the degree that it can be applied by its graduates to the immediate solutions of critical societal challenges, thereby advancing the greater global severe. (Laureate, 2013)The combination of my academic implementation and my individualized standards in all that I do will provide the foundation for my success as a nurse Home Director. It will require great time and energy, but I am excited to pursue the challenge. My study habits and skills enable me to gain a in force(p) understanding of th e subject. I work well in a team, or I can function on my own. I know how to seek kayoed help when essential and I will not settle for being average. Drive and desire for excellence is balanced with a good sense of priorities and I do not usually lose track of what is important. I am very aware of what I need to do to be ready for each given situation and am able to manage stress in healthy ways. My family fully supports this endeavor, and I am mentally, physically and spiritually ready for the task. The unrelenting and intense demands as a Nursing Home Director match my capabilities.Healthcare administrators perform many functions. They are responsible for developing an improved body of work through employee and workforce efficiency. This is done through motivation and positive vibes to promote and improve productivity. In addition to taking care of employees, health care administrators overlay the companys operating budget to decide the amount of money that can be spent on ea ch project. Healthcare administrators are a difficult job and each manager must make fast and effective decisions that will improve the company and make it run smoothly.A pillow slip of healthcare administrators is a home director. This job comes with many roles and stopping point setting for employees. All roles are important to function, and one rule should not be much important than the other. Gls is the result or achievement toward, which ffrt is directed. All people have different goals in their lives, which are subjective and differing from person to person. Some persons opt to concentrate their achievement into acquiring professional goals others select to obtain their prsnl gls. To achieve positive results, it is necessary to be a balance btwn persons prsnl life and business. Role and responsibilities of managers in todays health careAll facets of the healthcare operations managers job are important. Together, it helps maintain stability and financial standing of the hos pital. The workflow process have gots the number of employees in each department. Employees must have the necessary skills to perform his or her job duties. There must be structure in each department to be fast, yet efficient. The physical layout ensures that the hospital layout is knowing to improve productivity. For example, the hospital should control patient inflow and outflow to reduce the amount of traffic in the hospital. The layouts should also include safety products and procedures on each floor. Capacity design and planning help improve productivity through technology or other resources.Staffing levels and productivity management allow the hospital to control output through the use of technology and staff, combining both to increase productivity level. Technology controls inventory and improves patient process. Quality, planning, and process improvement focuses on performance indicators so the hospital can stand out from its competitors. The planning process improves pat ient satisfaction and efficiency as well as reducing cost and increasing speed through advanced technology. Each role possesses the necessary factors that help the hospital flow efficiently. One should not be in interject without the other. To achieve success in a hospital setting, healthcare administrators must improve patient satisfaction while increasing profits using the goals listed above.This lay guides the hospital by implementing rules and regulations to ensure patient and employee safety and efficiency. Along with the implemented rules and regulations, he or she must know, follow, and enforce government standard regulations. Healthcare administrators looseness of the bowels a demanding role in the hospital, and all work is performed through strategic thinking and hard work. Skills and experiences the Masters of Healthcare Administration program In this account I would like to illustrate, my decision to pursue an in Masters in Healthcare Administration (MHA) degree to be come a business owner or explore a more exciting career. I firmly believe that a degree in Masters in Business Administration (MBA) have with a MHA can reward a very successful, satisfying and a challenging career for me.The educational background has a great influence on our personality and the decisions taken regarding our career prospects. A masters degree is something I have always wanted to attain. So having a MBA is a personal goal and further develop my knowledge in the field of business administration and MHA would give me the knowledge and skills which in turn adds value to my career. Though the MHA melody requires a substantial commitment of both time and resources, it is a very valuable asset.In conclusion, the MHA Program not only facilitates me to reach my personal goal however, it can assist me in becoming a more successful leader sharpen the managerial skills and tools such as communication and motivating people.ReferencesLaureate. (2013). suffer to know Walden. Re trieved from http//www.waldenu.edu/about
Wednesday, June 5, 2019
Conclusions And Future Scope Engineering Essay
Conclusions And Future Scope Engineering EssayIn the integrated band industry, the ceaseless effort to decrease critical transistor dimensions in each new technology guarantees that the prominence of electrostatic burn down will continue to grow. Devising ways to protect electronic devices against ESD is just as important as determining how to process and manufacture them because a product with susceptibility to disparage will not be accepted. As a result of change magnitude susceptibility of devices to ESD because of miniaturization, the problem of ESD is now being dealt by most IC manufacturers and electronic trunk designers at several levels, from designing on- rubbish testimonial circuits to off chip guard design for systems. Once an IC is packaged and shipped to a habiter, however, the in- create, on-chip egis circuit is the only means of defense against ESD equipment casualty. At the system level, the on-chip protection may not be able to handle the system level ES D exposure. So off-chip or on- come on protection devices ar necessary to protect the system from real solid ground ESD. While circuit designers have successfully created robust ESD protection for past technologies, a lack of thought of effects of ESD on various devices, circuits and systems the mechanisms underlying ESD damage induces the susceptibility of electronic components to ESD still a hot topic of research.Mathematical analysis and estimation to calculate the bring forth transeunt voltages inshield and unshielded perfectly letters is presented. This enables us to find the induced voltage and its rise time appearing at the terminals of the electrical equipment which are connected to such cables. This enables the designers to design protection circuits at the front-end of the equipment. The effect of ESD on logic gates, running(a) circuits, digital circuits, microcontrollers and complex electronics are presented. This chapter presents the contri scarcelyions of thi s thesis toward implementing a methodology of characterization of the effects of indirect and direct ESD on various electronic components. Also the implementation of the board design and protection circuits on a custom intentional microcontroller board based on an understanding of the ESD failure mechanisms of various devices and circuits is presented. This chapter covers the future scope on the research work carried out on ESD. The following results and conclusions have been arrived upon.8.1 Overall ConclusionsMathematical equations have been luxuriouslyly- essential and are utilize in MATLAB by which the coup direct and induced voltages in unshielded and shielded cables tail end be calculated.The apprises of the induced voltages obtained agree with the publish results by different authors.For stir illuminate ESD, laster induced voltages are observed upto 10 MHz for CSD, upto 2.5 MHz for note kick out and in the 20 to 100 MHz range for all the three terminations resisti ve, RC ring road and CMOS device. The induced voltages are higher in the case of get hold of discharge compared to air discharge or CSD. The induced voltage in an unshielded cable gains with the decrease in the rise time and quad, and increase in the acme amplitude and the damping doer for the CSD directionrn model.The peak honor of the induced voltage due to IEC contact discharge ESD at 8 kV for resistive termination is 625V and 7.8 mV for RC ringway termination. The peak honour of the induced voltage due to IEC air discharge ESD at 16 kV is 6.25 V and 3.25 mV for RC shunt termination. The peak value of the induced voltage at the stimulant drug of a CMOS device is 14 V for contact discharge and 0.6 V for air discharge. It can be inferred that RC shunt terminations are preferred compared to the resistive or CMOS device termination as the induced voltages are in mV range.In case of shielded cable, a generic program in Visual C++ to com enthronee the induced voltages for c hangeing parameters of the contemporary waveform, length, height of the cable and angle of incidence has been implemented. This can withal be employ to calculate induced voltages for different cable configurations. Using MATLAB, the data imported from Visual C++ is used to calculate induced voltages. The equations developed give the voltages induced whose values are in close agreement with those published by new(prenominal) authors.The induced voltages are investigated for braided and unbraided shielded cables. The induced voltage and current in the center conductor is larger for a braided cable compared to a non-braided cable. This analysis estimates the transient voltages appearing at the input of the system connected to the shielded cable. This estimate can be used to develop appropriate mitigation techniques to protect the sensitive system that is connected to the shielded cable. It has been calculated by simulation that in shielded cables, the voltages induced due to radiat ed ESD is negligible thereby reinforcing the theory that shielded cables can protect equipment from high oftenness radiated handle due to ESD.The effect of variation of the parameters such the cable length, height of the cable above the ground cream off and the angle of incidence of the ESD pulse has been discussed. The peak amplitude of the cable typeface current decreases correspondingly with decrease in the length of the cable. This change in the occurrence of the peak is due to smaller value of inductance in case of shorter cables as compared to long cables. The peak amplitude of thecable sheath current correspondingly decreases with increase in the height of the cable. The sheath current decreases with the increase in angle of incidence, as the induced current is function of cos i. The induced voltage in turn depends upon sheath current and surface transfer impedance of the cable. The induced voltages for a shielded cable of length 1m, height 0.1m and angle of incidence 30o are 1.4-10-8V for braided and 6.6-10-16V for non braided cable as presented in Table 3.3.Mathematical analysis is used to model the response of Very High Frequency amplifier to ESD bring forthd radiated EM fields. Using MATLAB the effect of the radiated fields on the induced voltages in a VHF amplifier for various distances from the ESD source is calculated. It is observed that a greater part of the energy due to ESD simulation currents has frequence components in the range of 200 to 400 MHz extending to the VHF and UHF bands. So the VHF amplifier is susceptible to ESD causas in this frequency range. If the distance between the ESD writer and the pickup antenna is decreased, the peak magnitude of the voltage coupled to the amplifier input terminals increases. The amplitude of the fields at antenna terminals, open circuit voltage at antenna input terminals, voltage at the input and takings of the amplifier decreases sharply with increase in distance from ESD source. It has been observed that the induced voltages at the amplifier input terminals can be as high as7.446 V with a rise time of approximately 1 ns for a distance of 0.5 m between the ESD writer and the pickup antenna as given in Table 4.1. This can cause malfunction of the electronic circuitry inside the amplifier.The spice circuit stamp with transient analysis concurs with the experimental results for air discharge on analog circuits. The zero crossing detector built with an opamp is more susceptible to ESD when compared to the RC phase shift oscillator built with discrete components. It is experimentally verified and the modeling withal revealed that the oscillator circuit utilize discrete components took some time to come back to its initial working civilize afterward the ESD discharge due to the slow discharge of the charges accumulated. In the indirect discharge it is seen that the ESD effect depends on both distance and discharge voltage. Higher discharge voltage and shorter distances produce larger transients and distortions in analog circuits. shoot air discharge of 15kV at the ZCD input damaged the opamp but the oscillator recovered after 750s. Direct air discharge of 15kV at oscillator output affects the output of oscillator for 1.4ms. The ZCD output remains high till the sine wave output of oscillator circuit recovers. The spice modeling also give the same results for discharge at oscillator output.In the radiative conjugation the transient appearing on the ZCD output could be due to differential mode and the common mode could not be investigated. In the direct air discharge conducted at the input point of the ZCD circuit, there could be two types of coupling the direct capacitor coupling to circuit and near field coupling for the common mode. In this case also the common mode was not investigated, so the transients shown are only differential mode. In the direct air discharge at oscillator output, the differential mode and common mode transients were see n. But the voltage probes and current probes of high voltage and low rise time of 1ns range with an accuracy of less than 5% were not available. Hence the initial rise time and the level best amplitude of the transient could not be measured experimentally with good accuracy.The digital switching circuit without decoupling capacitors at Vcc malfunctioned when an ESD event occurred at a distance of 35 cm from the circuit. The transient affected only the data stream and the circuit stopped functioning. Post discharge analysis revealed that Binary counter IC SN74LS393N had failed functionally (all output pins were malfunctioning). The importance of adding decoupling capacitors to the supply point of each of the ICs is verified.Experiments carried out to study the response of data to ESD in a digital switching circuit with decoupling capacitors at Vcc reveal that the effect of ESD on the data and clock depends on the position of trigger and also the plane of coupling. During discharge onto the horizontal coupling plane (HCP), the instance of occurrence of the discharge (when Data and Clock are High or Low) played an important role on the effect of ESD on the output data stream. When both data and clock are High, increase in data amplitude or data inversion occurs and also there is increase in the amplitude of clock. The distance at which the pulse is discharged onto the HCP reflects on the amplitude of the transient. During discharge onto the vertical coupling plane (VCP) there is a bolshy of data and transient with more than 50V peak amplitude is introduced. The discharge to VCP affected the digital data more than the discharge to HCP.Experiments are also carried out by varying the values of decoupling capacitors in the digital switching circuit and it is observed that smaller the value of decoupling capacitor, the more susceptible the circuit becomes to ESD. The decoupling capacitor with higher value of capacitance (0.47F) offered better immunity to ESD in our digital circuit because of its ability to pass only lower frequencies thereby rejecting the high frequency ESD transients.Experimental investigations of the TTL and CMOS logic gates reveal that CMOS devices are more susceptible to ESD than TTL devices due to the presence of a dielectricmedia in CMOS devices which can easily breakdown at high voltages. The output of CMOS logic gates deteriorated after ESD stress and did not recover after reset.It is verified experimentally that the susceptibility of a circuit to ESD in the complex mode circuit can be greatly reduced by properly grounding it. In the mixed mode circuit used, the data is affected more by transients of various voltages based on the discharge voltage given when the analog and digital evidence are common. This reiterates the fact, when the analog and digital grounds are common the high frequency return paths from the digital ground (astable multivibrator circuit using 555 Timer) reach the analog ground (inverting amplif ier using opamp) and affect the output. In the mixed mode circuit used when the analog and digital grounds are separated there are no transients due to ESD in the analog output. Hence separate analog and digital grounds are recommended.Direct air discharge of 12 kV twice on the GPIO pin of the custom designed 8 bit microcontroller diagnostic circuit resulted in the impedance of the board becoming very low implying there is a dead short between the VDD and the VSS rails of the microcontroller. The microcontroller shut itself down by enabling the thermal shutdown feature. The failure of all the three designed diagnostic tests involving digital ports, UART and PWM channel are observed. It is observed that the failure in the 8-bit microcontroller is through the Vcc and Ground pins when the ESD event was closer to these pins. This may be because of the capacitor across Vcc and Ground discharging into these pins due to the ESD event. For the ESD event at other pins, mostly malfunction wa s observed.The MSP430 launchPad with 16 bit microcontroller is quite immune to ESD owing to its inbuilt design and ESD considerations. This is confirmed experimentally by performing indirect and direct ESD tests at specified ideal voltages. However direct contact discharge of 8kV given to the Tx-Rx pins of the jumper array resulted in the damage of the communication port of the 16 bit microcontroller MSP 430G2231 IC. The microcontroller MSP 430G2231 is found to be not communicating with the software and the program is not executable. The communication port (Rx-Tx pins) needs protection in the form of TVS diodes.The 8 bit microcontroller system configured to do a diagnostic check of itsfunctioning during an ESD event had no extra on-board protection devices other than the on- chip protection. The 8 bit microcontroller did not withstand the IEC recommended up to 15kV air discharge perhaps because it was designed on a two level PCB board. The MSP 430 launch pad with the 16 bit microc ontroller on a four mould PCB was designed keeping in mind the ESD considerations. The 16 bit microcontroller also did not withstand the IECrecommended upto 8kV contact discharge at the communication port perhaps because of lack of extra protection. Continuous discharges on 8 bit microcontroller led to its thermal shutdown. But the continuous discharges on the 16 bit and 32 bit did not result in thermal shutdown perhaps because it was designed on four layer boards.All the observations from the previous tests and conclusions are put to use in the custom designed four layer board with 32 bit microcontroller user interfaced with various components care the UART, audio interface, USB, LCD display and key matrix. All the standard design rules for PCB design are followed in the custom designed microcontroller test boards one populated with components having in-built on-chip protection and another board with extra off-chip on-board protection devices.In the custom designed 32 bit micro controller system on four layer board it is observed that the placement of components on the board and board design played an important role in the systems sturdiness to ESD. The adherence to standard design rules such as split ground and power planes proper component placement to minimize loop scope power supply decoupling using ferrite beads and decoupling capacitors placement of connectors, user interfaces and output devices at the edges of the board separating analog and digital sections has made the microcontroller boards quite rigid against ESD. Also the on-board protection devices at strategical locations such as the input/output, data and power points, communication port and at the input points of the interfaces in the custom designed 32 bit microcontroller system plays a vital role in the robustness of the system.The adherence to standard design rules has made the microcontroller board with components having in-built on-chip protection also quite rigid against ESD. The bo ard with on-chip protection is affected by ESD with problems like malfunction or reset on power on with a damaged LCD interface module. The other board has extra on-board protection devices like ferrite bead used to isolate the noisy digital section from the analog section, decoupling capacitors for power supply decoupling, schottky diode used for ESD protection of USB and TVS diodes used at input points of microcontroller, LCD display, audio amplifier, UART and USB. The board with extra on-board protection devices has only temporary resets and is hardly affected by ESD, and the interface modules are also functioning normally. So experimentally it has been concluded that with adherence to board design and just in-built, on-chip protection the damages are mitigated but malfunctions occur which only recover on hard reset on power ON whereas with extra on-board protection devices included, the damages are completely eliminated, malfunctions are reduced and only temporary reset occurs. It can be concluded that not only standard board design rules need tobe implemented it is also necessary to provide on-board protection against ESD by choosing appropriate protection devices and placing them at appropriate and strategic locations like the input pins and supply pins of the device.Experiments of direct air discharge are conducted on the insulators in FPGA/CPLD kit like seven segment LED display, LCD and FRC, and contact discharge conducted on the metal points like the switches, pins and the mounting screws. An air discharge of 8 kV on Liquid Crystal Display distorts the data but resets with power ON and an air discharge of 15kV damages the data on the LCD which cannot be restored on reset. An air discharge of 2kV and 4kV had no effect whereas an air discharge of 8 kV and 15 kV distorted the output on seven segment LED display but the display reset to normal with power ON. A contact discharge of 2 kV and 4kV on the HEX keys feeding the data to seven segment display had no effect but a contact discharge of 8 kV shorted the keys which in turn displayed wrong display data. All these devices had only on-chip protection by the manufacturer and these devices needed off-chip, on-board protection devices to make them less susceptible to ESD.Huge transients are observed when air discharge is carried out on the FRC cables connected to the DAC module. When a contact discharge of 2 kV is given on the input pin 187 of the mother baseboard the DAC output voltage reduces. FPGA 3s50 IC is affected during this contact discharge on the input pin. The DAC ICs are affected during the ESD discharge one due to direct ESD effects and the other due to indirect ESD effects. CPLD 9572 IC is also affected by ESD. Because of the ESD discharge in the surrounding and on the input pin of the FPGA/CPLD kit, the ceramic capacitor in the SMPS power supply connected to the kit has shorted and found to be damaged. This is an after-effect observed after the ESD test. The damaged ca pacitor has been instrumental in contributing to the damage of the FPGA and CPLD ICs. Decapping of the FPGA and CPLD ICs confirmed the failure of these ICs due to ESD. The input/output pin bond pad and the metatop layer of FPGA 3s50 IC is damaged and there is dielectric breakdown observed in CPLD 9572 IC which makes these devices highly susceptible to ESD.Future ScopeMuch effort has been put into characterizing the effect and impact of ESD on individual ICs, on different designed circuits and few systems such as FPGA/CPLD kit, microcontroller units with various interfaces. However, less time has been spent in modeling all of these circuits/systems and to observe their behavior towards ESD using simulationtools. An effort in mathematical modeling and simulation has however been done with susceptibility of electronic system and cables due to radiated ESD fields. Also circuit modeling has been done for the analog circuits. The experimental based conducted susceptibility tests on variou s electronic components have resulted in some new results. Some of these results have reiterated some of the known facts and some results have given rise to new thoughts in implementing ESD protected circuit/system.ESD flagellum level variation to electronic components depends on the discharge voltage of ESD source, discharge point, structure and design of the component. ESD threat to components mounted in systems may significantly vary from the threat to unmounted, individual components. New models need to be designed to predict the condition while the device is working in the system and using the data processor simulations it is necessary to predict the ESD voltage, power and energy threats to system-mounted component. This is one area where the experimental results can be compared with the simulated results and the source of the threat, the point of discharge and its impact on the system can be confirmed. Also new protection schemes can be adapted to make the system less suscep tible to ESD.Another area of interest where ESD tests can be conducted is in the area of high speed radio frequency (RF) circuits and systems. As the demand for wireless (RF) and high-speed mixed-signal systems continues to increase rapidly, providing sufficient ESD protection for these systems poses a major design and reliability challenge. This is due to the fact that in applying ESD protection to these systems, the protection system must be transparent the protection circuit must not affect the signal under normal operating conditions. A poorly designed protection system can generate impedance mismatches, causing reflections of signals, corruption of signal integrity, and inefficient power transfer between the signal pin and the core circuit. Broadband RF system protection because of ESD parasitic capacitance poses a greater challenge alternate protection schemes may be necessary. This necessitates us to first understand effect of ESD on these high speed RF systems. However, the re is little published information that provides performance analysis of RF circuits with various ESD protection design options scheme, which is attractive for operations in the multi-GHz regime.
Tuesday, June 4, 2019
Power, Politics and Leadership in the Organization
Power, politics and leaders in the OrganizationPMC 140Project LeadershipPolitical Leadership in the OrganizationAbstractThe Outline of the Topic is based on the Power, Politics and Leadership in the Organization.Design The Questionnaires are as followsWhy Politics is important in the travelplace how much do we assemble with it to achieve the reputation or position in your organization?What is meant by personal line of credit leader in the organization, how it helps to achieve the leadership qualities?What will be the impacts on Leadership Qualities and Leaders especially in their personalitybyplaying politics and having place in the organization?Keywords Leadership qualities, behaviour, politics in workplace.value -The findings of this paper contri barelye to the understanding of the relationships between leadership, performance, and politics in the workplace and in the public sector in particular.According to the visual sense from past several Years and according to my beli ef the word Politics in the organization is creating the hoax to its original term. Power, Politics and Leadership are the iii important factors in the workplace that leads to the success in shortcut manner. We will discuss these three factors which has change the scenario of Organizations and leadership qualities.Politics in the organizationorganisational Politics involves intentional acts of the influence to enhance or protect the self-interest of the individuals or the groups. It is an unpreventable and basic reality. Workplace politics is a very gracious phenomenon that tends to arise in organizations with at least one degree of separation between authoritative decisions.Politics need not be nasty round of it outhouse be safe, like perhaps a director is having a good understanding with another director over which team has better performance. This isnt a direct goal laid out by the senior management, but ultimately it corporation be concluded that a little internal emulatio n between departments would overall improve quality.Corporate politics naturally have nearlything to do with wad attempting to move ahead their careers. This sometimes goes against the welfare of the company as a whole, against principles of fairness, and is generally speaking something you usually dont want to be a part of. Sometimes there are overly ambitious but mischievously performing managers. They focus on devising everyone else look bad at all costs possible to secure their employment and promotions, which bleeds into daily operation. For instance if two grainy developers are working on the same product from different teams, and if there is a problem, they will engage in long irrelevant work rather than constructive work.Sometimes there will be slight attempts at challenging teams. For example, lets say you are taking over a codification base from someone and they intentionally leave out some vital details during the facts transfer. Alternatively they can choose to au thority on the data, they look in disposable, and hint that you cannot do the job that they used to do. Ultimately, if you do nothing about it, these kinds of large number will excavate trenches around you and make you look bad in front senior management. Perception is everything in this kind of a nature of politics, and sadly sometimes you have to play this game to survive. Yes some people play the game just for themselves and are dishonest in what they do. These people are the people who get praise for what others did and who will stab you in the back. The best way to detect the bad people from succeeding though is to play the political game yourself. People cant take unmerited praise for what management already knows you did. scarcely if you have good information and want them adopted by the association, if you want to get promoted to the next level, if you want to defend yourself and your status, you need to play the game. Technical people hate this, but it is true. No one c an manage to pay for not to be part of the political game at work. It makes you more helpful. (what-does-politics-mean-in-a-corporate-environment, 2012) preserve of Power in the Organization and Achievements in the Leadership Qualities.Let me draw your attention to the interesting thing that Have you ever notice that the Senior management probably knows more about whats going on at work than you?Power in the workplace can be a delicate thing. either day, we need to get the people around us to do things. There are many legal things we need others to do the report youre waiting on from another department or delegating work to those under you in the organization. But the line that defines getting work through from reinforcing your own position is a misty one at best. Thats why you want to be familiar with the various types of power that youre given in theworkplace. Of course, the game of power is a beguiling one and we cant cover every kind of authority.You have three main sources o f power role power, expert power and relationship power. Lets break cut out each and give examples of when to use them.Role Power Role power is theauthority that is given based on the element you play at work. Role power is the nigh direct kind of power for example, Managers has power over the staff who report to him. While this is the most understandable example, role power doesnt always come down instantly down. You may have extra role power in a specific context, such as leading up a take in that gives you success in your work and input from people higher up the food chain than you.These roles are of people whose jobs, in reality end up being much more important than they initially seem on documents. If youre in one of these types of roles, you may have control over valuable projects or information.The obvious way to gain more role power is toget promoted, but there are things you can do to improve in the role you have. attend to at the work that makes up your day-to-day job . You can ask to suggest something else that could be done in this area, even if its just creating an excel spreadsheet that looks at some data in a different way. If its necessary to the company, you want to be part of it.Expert power-Expert power is the power that comes from yourskills and information. A lot of the weight you press out at work comes from the quality of your results and the knowledge you bring to the table. Why is it that out of the whole sales team, people in your office pay more wonder to the top salesman. Because whatever hes doing, its working. Hes creating results, and that makes people respect his view and listen when he speaks.Think about the experts at your work. You dont know the process, but the knowledge and the results speak for themselves. get through line You pay your respect the people at work who are good at what they do. The good news is that youre continuously increasing your expert power as you continue your workingcareer. All things being equ al, we apt to view those whove been doing something for longer as having more smart. Then again, we also look down on those whove done the same thing for years but are stuck in their ways and struggling. Stay dynamic Learn new skills, learn more about your business and keep bringing new ideas and new results to the table.Relationship power-Relationship power is the authority you have on others based on your relationship with them. Relationship power is anything in your relationship with others that makes them want to do things for you. Of the three kinds of power, relationship power is the easiest to use, as everyone has a craving to get along at work and for things to go smoothly. so far if you dont want to be friends with the people you work with, you still want to get along and get through your days as smoothly as possibly.Relationshipsare the lubricant that keeps the wheels turning smoothly. Its not just about friendship either Favours done and returned, or even quick replies with needed information when people ask for it can go a long way toward increasing your social power.Being generally helpful and nice is a huge start. You dont need to be an light-colored target but be relaxed and help others move company projects forward. When one of your co workers does a good job, give them credit for it. Do the occasional prefer as long as youwantto do it and arent being walked on. Everyone has problems, and the day may come when you need to call in that favour. If you have extra time in the morning, bring the crew in some coffee and doughnuts one day. Dont forget, actions speak louder than words and your reputation leads you forward. It doesnt need to be a big signal, but a little set down here and there can build up to a healthy bank balance in your social-circle account.Poweris one of the oldest and most elusive games, and there is still no definitive guide to the stuff. Just because power can never be mastered doesnt mean you shouldnt be devising it work for you. Start today to carve out some power for yourself. By paying attention to your role, expert and relationship power, you can begin to control your leadership. (the-three-types-of-power-at-work.html)(aqureshi)Impacts on Leadership Qualities and their Personality byplaying politics and having power in the organizationAccording to the Power and Politics I want you to pull your attention on the Impacts on Leadership Qualities and the change in their Personality by playing Bad politics in the workplace. Let me take the illustrative example of how some Boss goes mad through the office.If your boss is not impressed with you, theres a good chance that your colleagues are feeling it, too and reacting to the contradict energy in turn. Anew study suggests that boss around bosses affect not just the victim of their anxiety, but the victims co workers as well, making life miserable for an entire group of colleagues. This phenomenon, second hand bullying, may also have an unintentional i mpact on the company as well, since it can seriously affect employees self-esteem and opinion of the company as a whole. The phenomenon known as abusive direction is one of the more impaired types of leadership, they point out, but its one thats gaining more notice as a very real problem in the workplace.Office bullying is defined as subordinates perceptual experiences of the amount to which supervisors engage in the constant display of aggressive verbal and nonverbal behaviours, excluding physical contact. And this type of psychological bullying frequently goes on much longer than physical abuse, since its less understandable but can be more dangerous, leaving long-lasting scars. But as mentioned, abusive care doesnt just affect the person at whom its directed it can affect an entire office. Its occurrence can work to others second hand, as they hear about it or witness it occurring in co workers and friends. And if it spreads to other people, it may be likely to affect employ ees overall perception of the company they work for and, in true domino effect, this can affect the efficiency of the company itself. In other words, its not something to be taken calmly from a social or a business perspective.To these ends, the authors wanted to measure the effects of rude supervision and explicit abusive supervision on employees frustration, the likelihood of co worker abuse, which is how supportive employees perceive their company to be. Top management needs further education regarding the potential impacts of sensational abuse supervision on employees to prevent and mitigate the effects of such abuse. They next hope to look at the effects of both types of abusive management on people in other lines of work, and within specific companies.According to the survey and research in the industry and exploring the real life examples of Victims who have suffered a lot in politics in the workplace, I believe that Politics is Good at its certain level to raise you in the terms of Leaders, its quality and behaviour, but its bad also as when you mess with it in wrong manner. It can bring a person from Rags to Riches or viceversa.So we should often play Politics in the workplace. (Walton, 2013)Bibliographyaqureshi. (n.d.). power-politics-and-leadership. Retrieved from http//www.slideshare.net http//www.slideshare.net/aqureshi101/5-power-politics-and-leadershipthe-three-types-of-power-at-work.html. (n.d.). Retrieved from http//ca.askmen.com http//ca.askmen.com/money/career_300/304_the-three-types-of-power-at-work.htmlWalton, A. G. (2013, 7 2). http//www.forbes.com/sitesthe-dark-side-of-leadership-the-impact-of-a-bad-boss-can-go-viral-though-the-office/. Retrieved from http//www.forbes.com http//www.forbes.com/sites/alicegwalton/2013/02/07/the-dark-side-of-leadership-the-impact-of-a-bad-boss-can-go-viral-though-the-office/what-does-politics-mean-in-a-corporate-environment. (2012, 10 3). Retrieved from http//workplace.stackexchange.com http//workplace.sta ckexchange.com/questions/4288/what-does-politics-mean-in-a-corporate-environment
Monday, June 3, 2019
Controlled Release Fertilizers And Nanotechnology Traces
Controlled Release Fertilizers And Nanotechnology TracesOne of the most significant problems of crop fertilization by ordinary fertilisers is nourishing loss to environment which causes lots of environmental and human health problems besides diminish the efficiency of crop nitrification. As a solution, controlled or reluctant justify fertilizers occupy been developed to overcome drawbacks of tralatitious fertilizers. In this review common faces of CRFs and some(prenominal) related concepts. Also, foc utilise on polymer coat CRFs, distinct preparation and different cover application orders pass on be studied. In addition, some features of nanotechnology and nano-materials in preparation of controlled deplete fertilizers in previous works will be reviewed.IntroductionIn general, ingrafts must be supplied with nutrients during the completely vegetation period. In horticulture this is achieved by applying quickly soluble fertilizer once to twice a week, for example. This kind of fertilizer application is very labour-intensive and requires commodious specialist knowledge, so as to select the correct rate of application, appropriate m of application and correct root word for the particular plants to ensure optimum plant production. With the use of belatedly or controlled unleash fertilizers the full amount of nutrients obligatory for the whole vegetation period can be applied at the time of planting or at the earliest stages of plant growth, in the form of a nutrient pool Also, about half of the applied fertilizers, depending on the order of application and grime condition, is lost to the environment, which results in the contamination of water 1.This kind of environmental concerns of feeding crops with traditional fertilizers has led to developing Slow Release Fertilizers (SRFs) or Controlled Release Fertilizers (CRFs). SRFs or CRFs atomic number 18 easy and safe to use. They reduce risk of incorrect fertilizer application. Also, they ar labour saving and minimize nutrient losses by withdraw or fixation.The idea of producing SRFs was developed since 1963 by encapsulation of fertilizers by climb upes. later on that, these products have been commercialized. There argon lots of SRF and CRF brands. virtually of these products atomic number 18 Scotts pro with key brands such as Osmocote, Sierrablen and Osmoform. Aglukon and SunGro Com pany be as well as producing controlled exonerate fertilizers.Like lots of scientific fields, culture industry has been over shadowed by nanotechnology. Applications of nanotechnology in agriculture includes agriculture crop improvement, nano-biotechnology analysis of gene expression and regulation soil management, plant disease diagnostics, efficient pesticides and fertilizers, water management, bio bordering, post harvesting technology, monitoring the identity and quality of agricultural produce and precision agriculture. Efficient pesticides and fertilizers are recently being developed in terms of nano-composite found slow or controlled put out fertilizers.Using nanoparticles as reinforcing or cementing agent of polymer surfaces and also as reservoir of fertilizers are features of nanoparticles which have been utilize in preparing slow release fertilizers 2-4.FertilizersFertilizers are applied to soil to promote plant growth. They contain some beneficial nutrients including macronutrients and micronutrients. Macronutrients are nitrogen, phosphorus, and potassium which are added to soil in quantities from 0.2% to 4.0% (on a dry bailiwick weight basis) and are to a greater extent essential than micronutrients. Micronutrients are elements which are applied to soil in oftentimes smaller amounts, ranging from 5 to 200 ppm, or little than 0.02% dry weigh. These elements could be boron (B), copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo), zinc (Zn)5.2.2. Types of fertilizersFertilizers would be categorized from source of production and also from release properties points of view. on the whole fertilizers could be constituent(a) or man-made from production source point of view. fundamental fertilizers are naturally produced including seaweed, worm casting, manure, slurry, peat, humic acid, guano and brassin. They provide slow release of nutrient as they need soils bacteria to be broken down to needed elements. Also, they may improve the biodiversity of soil by supplying organic matters and micronutrients for organisms. Organic fertilizers are cheaper and safer than synthetic substance fertilizers.The main synthetic or mineral fertilizers which are the sources of nitrogen (N), potassium(K), phosphate (P) are carbamide, ammonium sulfate, ammonium phosphate, phosphate rock, potassium chloride, tops(p) phosphates, calcium ammonium nitrate, potassium sulfate. Fertilizers could be in heighten form (NP, PK, NPK).The most important drawback of synthetic fertilizer is their long term sustainability. Also, they are more expens ive in contrast to organic fertilizers 5.In addition, fertilizers can be categorized into ordinary and controlled release fertilizers from release properties points of view.Drawbacks of non-controlled release fertilizersOrdinary fertilizers leach to soil very quickly and most of them are not employ by the plants. According to figures about 40-70% of nitrogen, 80-90% of phosphorous, and 50-70% of the applied normal fertilizer is lost to environment and cannot be employ by plants 6. This rapid leaching will cause burning of plants and growing in spurts. Also, the lost elements will cause some serious problems for environment. Eutrophication, dispirited baby syndrome, soil acidification, persistent organic pollutants, heavy metal accumulation, atmospheric effects are environmental concerns of ordinary fertilizers. Another result of quick leaching of fertilizer is repeating the application of fertilizers which will increase the cost 5.Slow or controlled release fertilizersSlow releas e fertilizers or controlled release fertilizers are granules coated in a substance that reduce the releasing time of nutrients and eliminates need for constant fertilization and broad(prenominal)er efficiency rate than soluble fertilizers 7.Some of advantages of controlled release fertilizers are long availability of nutrients during growing-season, reduced loss of nutrients through leaching, reduced cost and labor outlay, better storage and handling of fertilizer, reduced immobilization reactions in soil, reduction of nitrification reaction and nitrogen loss through ammonia volatilization and denitrification, elimination of seed damage because of high concentration of salts, elimination of leaf burning from high rates of applied fertilizers, better seasonal growth distribution and better acclimatization in home or display environment 8.Differences between slow and controlled release fertilizersAlthough there is not special difference between general function of CRF and the one fo r SRF, but it should be mentioned that they are manufactured by different materials and techniques with different properties. In slow release fertilizers elements are present in fertilizers in a chemic form, which is not available to plants and they will be converted by physio chemical effects or microorganisms activities into nutrient forms in the soil. But in controlled release fertilizers elements are packed in coated granules and are released through the culture over a certain period of time. Also, in SRFs nutrients available period is affected by a lot of factors such as water nitty-gritty of soil, pH, temperature, microorganisms activity and aeration. However, the longevity of CRF depends mostly on refinement weightiness and temperature of soil. Only destination mode is effective in changing pattern of nutrients release and a fixed destination thickness control nutrients release. In CRFs declared release time refers to soil temperature of 20-21oC. Higher temperatures a ccelerate the element release and lower temperatures relieve oneself it longer 9.SRFs are fertilizers with a chemical structure which are inherently slow released. Some kinds of SRFs are Urea Aldehydes (UA) and Chelated Micronutrients (CM). Common type of UAs is urea formaldehyde which is high nitrogen fertilizer. Starting release rate of UAs is high but it dies off slowly for 3 years. This kind of fertilizer depends on microorganisms to finish it down for plant use. CMs are substances that hold firmly together iron, manganese, zinc, and copper. They slowly releases over a long period of time 8.2.4.2. Types of CRFs2.4.2.1. Sulfur cover (SC)When master(a) sulfur is oxidized to its sulfate form, the product would be one of the nutrients which is essential for some plants and is normally blended with other fertilizers. Using sulfur coating is also another manner to provide sulfur while making slow release properties for a core granular fertilizer. As the sulfur containing materia ls like polysulfides or lingosulfonate are brittle and also give a low wetting of shifts, they are normally mixed with waxes or plasticizers. Many formulas are available for SCs. Their release time is generally 3-4 months and the nutrient is released from SCs by microorganisms activity 10-14.2.4.2.2. Wax coated (WC)One of the methods of reducing fertilizer release rate is dispersing granular fertilizers with molten wax and then cooling the mixture below the break up point of the wax 15. alkane is one of the most used waxes as a coating for fertilizers. Paraffinwax is a white, tasteless, odorless solid, with a typical melting point between about 47 C and 64 16. Other types of waxes are synthetic oil based, crude oil or mineral waxes. Waxes are normally used by an additive or a tackifier to make good sealing properties 17,182.4.2.3. Polymer Coated (PC)Polymer-coated fertilizers (PCF) represent the most technically advanced controlled released fertilizers. They include a water-solu ble fertilizer core and one or more than one floors of polymer. There are large varieties of polymers to coat the core fertilizer also the coatings layer could be the same one or different. In PC fertilizers release of nutrients will egest by spreading through a semi permeable polymer membrane. wet penetrates the coating and dissolves the core. Release rate can be controlled by varying the composition and thickness of the coating. In addition, pressure builds up can cause cracks to form, from which fertilizer passes into the soil 8.2.5. Review of different types of polymer coated CRFs2.5.1. Sole Polymer coated CRFsOne type of polymer coated CRFs is the one that the fertilizer core which could be N, P, K or compound fertilizer, is just coated with one or more than one layer of polymer coating. In this case the polymer could be solvent based or water-based. The application process starts with dissolving the polymer in an organic solvent or water. afterward dissolving, the coating will be sprayed onto the fertilizer in a coating drum or fluid bed 19. Polymer coated fertilizers have some. One of them is that uniform and defect free coating will surround fertilize. The other is that the coating will be very tough and durable which is resistant against automatic breakdown. Also, polymer coatings are biologically inactive so they will not breakdown by soil microbes.In most cases except for degradable polymers release of fertilizers will occur by diffusion through the polymer coat rather than through defects. In some other coated fertilizers like sulfur coatings there should be a flaw in coating to cause releasing of fertilizer.There are lots of examples for polymers which have been used in the literatures as coating for fertilizers. Some of them include dicyclopentadien 20, urea and urethane based 21-26, epoxy based 27-29, polyvinylidene chloride-based latex 19 carboxyl-carrying ethylene polymers 30, biodegradable starch based 31, urea formaldehyde 32.However, polymer coated fertilizers have some week points. About solvent-based coatings use large amount of organic solvents like toluene or xylene will lead to environmental concerns. These solvents are volatile and releasing them to environment makes some hazards for human health. Also, polymer coatings are more expensive than sulfur coatings because not only polymer materials are more expensive but also process and equipments which are used for production of polymer coated fertilizers are also more complex than equipments used for other coatings.2.5.2. Sulfur-polymer coated CRFsOne of most common coated fertilizers are the ones in which core fertilizer is covered by a layer of sulfur coating and a layer of polymer. Polymer layer can be the primer or outer layer. It means that sulfur layer in some researches has been the first layer and in some others the outer layer.Using polymers as coating is suggested method to remove drawbacks of sulfur coated CRFs. One of these drawbacks is very fas t release of sulfur coated fertilizer in first few days subsequently application. The other one is brittleness of sulfur coatings which may lead to some fractures during handling or storage and losing the fertilizer. Another problem is that sulfur coatings have a high surface tension with water and cannot provide enough wetting for a good diffusion 11, 13, 19, 28.The most common method for applying the sulfur coating is by spraying. Molten sulfur compound will be sprayed over a pre-polymer coated fertilizer granule 28,33.2.5.3. Wax-polymer coated CRFsThere are lots of researches counselling on making controlled release fertilizers utilize wax-polymer coatings. A wax layer has three major benefits. One is that they are applied over the polymer layer for decreasing the fracture probability of coating and the other one is for decreasing the amount of polymer and avoiding consuming lots of polymers to make the process cost effective. Also, they can eliminate dent of granules surface to make a good surface coating.Most common waxes which have been used in state of the art are C30 alpha-olefin and paraffin. Other petroleum products like lubricants and bitumen or natural products like canola oil, soybean oil, coconut oil and palm oil, also have been used.After melting the wax it will be applied by just mechanical mixing with polymer coated granules. Normally the polymer is thermoset to avoid any damages of polymer by the waxs high temperature in its melting point. The wax normally should have drop melting point from 50 to 120C. Wax is normally about 0.2% to 10 % by weight of fertilizer 17, 28, 34, 35.2.5.4. Filler-polymer coated CRFsAs mentioned before, despite lots of advantages of polymer coating to make slow release properties when such polymers are used as a sole coating material the ultimate product would be expensive as you have to consume large amounts of polymer. Using mineral or organic fillers is one way to avoid using large amount of polymer. Also, in some researches fillers play the role of detackifier, to prevent adherence of coated granules to each other. In addition they are strengthening agent of coatings 36.Fillers may be used either as a mixture with polymer to make a nano-composite polymer 37 or as a transgress layer. The most common method is the latter in which the filler will be added by mixing with polymer coated granules before drying the granules. Most common used fillers are some very fine(less than 20 microns) inert inorganic materials like mud, diatomaceous earth, bentonite, kaolin, gypsum demolished limestone, talc, barium sulfate. Some other fillers like waste cellulosic materials also have used as filler in combination with polymer 37-41.2.6. Techniques of applying polymer coatingAccording to previous studies have been done, encapsulation methods of fertilizers can be divided into three methods including in-situ, spraying and mixing.2.6.1. In situThis method includes formation of fluid dispersion of the sol uble fertilizer in a solvent and mixing the prepared solution with monomers of a polymer coating. Polymerization will happen and depending on the method, granules or particles of fertilizers will form.Ni et al 42 have developed a double-coated urea fertilizer. For preparation of poly (N-vinyl-pyrrolidone) hydrogels containing urea (PCU), the monomer and a solution of urea in N-vinyl-pyrrolidone were mixed together. The polymerization was carried out at 65-C for 3 h. The resulting samples were vacuum-dried, milled, screened and stored. After that first coating was dried, sample and some amounts of urea were mixed with sodium alginate (SA) solution. flux solution was then added drop wise into 5% (w/w) CaCl2 aqueous solution and stirred constantly. The drops immediately turned into granules (about 4mm in diameter) because the SA in the drop was crosslinked by Ca2+ at once. The granules were filtered and dried in oven at 70- C. thence the granules were added to ethylcellulose ethanol solution. Multiple ethylcellulose (EC) coatings were prepared by assiduousness of the previously coated granules into the ethylcellulose solution repeatedly. Thus, EC-coated urea granules with different coating thickness were obtained.Hanafi et al 43, have coated a compound fertilizer by polyvinyl chloride (PVC), polyacrylamide (PA), natural rubber (NR), and polylactic acid (PLA) using in situ method. For encapsulation of compound fertilizer with polyacrylamide the granules were added to the solution mixture of monomers. and so the polymerization reaction will start in existence of fertilizers. The thickness of the coating layer on the compound fertilizer granules, determined by SEM(Fig.2), gave PVC compound coated fertilizer the highest value of 3.04 lm, and the lowest was obtained by PA (2.04 m). Variation in the characteristics of the polymers would be utilized in producing CR compound fertilizer that fit the requirements of growing plants.Hudson et al 28 used epoxy to coat the fertilizer. In this research the urea granules were charged to a pan and warmed to 95C. Then the hydrogenated tallaw amine, 2-amino ethyl peperazine and bisphenol A diglycidyl ether were mixed and were added to the granules. Meanwhile polymerization happened and prepared mixture was agitated till the fertilizer granules dried.2.6.2. nebulizer methodThis method is most common method for coating application on fertilizer granules in state of the art. Usually, the solution of polymer in a adapted solvent is sprayed on the granule of fertilizer and then the granules are dried to remove the solvent through evaporation. The treatment is repeated as often as necessary until the desired coating percentage is reached.Tomaszewska et al 44 have used spray technique for encapsulation of fertilizers. In order to improve the properties of coatings, the granules of previously coated fertilizer (wet method) were sprayed with a polymer solution or pure solvent (N,N dimethylformamide). Concentrati on of the polymer in solutions used for spraying was in the range of 13-17 wt%. Measurements of thickness, porosity of prepared coatings and microphotographic observation of the coatings were taken. Fig.3 shows the cross dent of double coated fertilizer.Ma et al 45 have developed a method for encapsulation of fertilizer with a self assembled coating. The fertilizer granules were heated in a rotary drum to 75C for 10 minutes. Then the self assembling amphiphilic molecules (N,N-bisaminoethyl eleostearate) were sprayed over the fertilizer. After 20 minutes aliphatic isocyanates were sprayed over fertilizer. This process was repeated once again. The fertilizer kept for drying in the 75C for 20 minutes.Dai et al 46 also, have developed a controlled release fertilizer using a water soluble resin as a coating. The granular compound fertilizer was coated in fluidized bed.Lan et al 47, prepared a double-coated slow-release NPK fertilizer with superabsorbent and water-retention properties (D SFSW), whose inner coating was chitosan (CTS), and the outer coating was crosslinked poly (acrylic acid)/diatomite-containing urea (PAADU). This prepared product not only has slow-release property but also could absorb a large amount of water and preserve the soil moisture at the same time. In addition, the outer coating (PAADU) could protect the inner coating (CTS) from mechanical damage. These were significant advantages over the normal slow release or controlled-release fertilizers, which generally have only a slow-release property. The results indicated that the DSFSW could be found an application in agriculture and horticulture, especially in drought-prone regions where the availability of water is insufficient. At first, the outer coating containing urea diatomite (PAADU) was prepared. The NPK compound fertilizer granule was placed into a rotary drum, and the chitosan powder was stuck on the granules by means of epoxy dissolved in acetone. The adhesive was applied by spraying at regular time intervals. The process was terminate until compact and homogeneous coating formed on fertilizer granule. The coated granules were dried to a constant mass at room temperature for 6 h. Then the CTS-coated NPK compound fertilizer granules were obtained. CTS-coated fertilizer granules were dipped in water and then were immediately placed on PAADU powder and shaken. In this manner, PAADU could adhere to the surface of CTS-coated NPK compound fertilizer and form the outer coating. The surface of the product was crosslinked by spraying methanol solution of epoxy chloropropane and then dried in a 70 C oven to obtain the final product which is a double-coated slow-release fertilizer with superabsorbent and water-retention properties.Hansen et al 26, encapsulate the granular fertilizer with the epoxy resin using spray method. In this research not coated fertilizer was placed in a rotating drum and pre heated to 250 F. A rapid drying solution of copolymers dicyclopentadiene a nd a modified vegetable oil were applied over fertilizer using spray in a thin stream of resin. Simultaneously hot air was passed through drum. abutting monomers of second resin including a mixture of epoxidized soybean oil and polyester curing agent were applied over prepared granules. The solvent was a mixture of xylene and Cellosolve acetate.Hansen et al 29 also have used the above mentioned method for encapsulation of fertilizer with polyurethane. First of all the preheated fertilizer was coated by a synthetic drying oil. After drying the coating for a few minutes fertilizer were dusted by clay. Then urethane solution in xylene and Cellosolve acetate was applied using spray.2.6.3. MixingIn this method granules are simply mixed with the coating at its melting point or with a solution of polymer in a suitable solvent.Tomaszewska et al 48 used this method for coating the granular NPK fertilizer with polysulfone (PSF), cellulose acetate (CA) and polyacrylonitrile (PAN). The coating solutions were prepared by the dissolution of the solid polymer in adequate solvent. The NPK fertilizer was successively added to adequate polymer solution, and was covered by a thin layer of the solution. Subsequently, granules were dropped into water, where the gelation process takes place. The coated granules were removed from the precipitation bath and then dried to a constant mass. The multiple coatings were prepared by immersion of the single coated fertilizer into adequate polymer solution, then into water and drying.Hon 37 has prepared the coated granules by mixing method. After melting the thermoplastic polymer by heating, the cellulosic additive has been added to melt resin. Then after allowing the temperature to drop, for avoiding the fertilizer damage, the granules or powder fertilizer has been mixed with the prepared mixture using a Brabender Mixer.Markusch et al 49 just has mixed the fertilizer pellets with at first, a diluted polyol and then with a diluted isocyantae to make a polyurethane coating. Then the feretilizer were placed in oven for drying.2.7. Polymers used as coating for CRFsA broad range of polymers has been used in fertilizer coating. These polymers could be thermoset, thermoplastic or biodegradable.Some of common thermoset polymers are urethane resin, epoxy resin, alkyd resin, unsaturated polyester resin, phenol resin, urea resin, melamine resin, phenol resin, silicon resin. Among them, urethane resin urethane is very common used 26,50.Thermoplastic resins are not very common used in art because of some problems. As mentioned before a very preferable method of applying polymers is spraying the dissolved polymer over granules. Either some of thermoplastic resins are not soluble in a solvent or make a very viscose solution which is not suitable for spraying. Polyolefine is used in art for coating the fertilizer granules 37, 51.Biopolymers, dispose in bioactive environments, degrade by the enzymatic action of microorganisms such as bacteria, fungi, and algae and their polymer chains may also be broken down by non enzymatic processes such as chemical hydrolysis. Non-biodegradable polymers are not environmental friendly. Due to environmental concerns there are some trends of replacing non-bio with bio degradable polymers as coating material from 1970s. But it should be mentioned that they are expensive yet and not very cost effective. Also, in production process durability of polymer should be adjusted with release time of fertilizer.Among natural and synthetic biopolymers starch and cellulose based polymers, chitosan (a linearpolysaccharide), poly lactic acid and poly(-caprolactone) due to low cost and abundance are some of used biopolymers in fertilizer industry31,42,47,52-58Generally, polymer coatings are applied in a thickness which is suitable to make a desired controlled release property. Thickness could be related to characteristic of polymer and also it depends on existed porosity of polymer surface. If water vapor transmission rate of coating material is 0.01 to 20, coating thickness would be 1 to 100 microns. Preferred coating thickness is 1 to 50 microns. Coating process could be repeated more than one layer to get desired nutrient release 39.Typical visible method for encapsulating fertilizers are spray coating, spray drying, pan coating, rotary disk atomization. Special equipments for these methods are rotary drum, pan or ribbon or dabble mixer and fluidized bed 59, 602.8. Investigation of release behavior of CRFsRelease mechanism of nutrients for different coatings is different. Thick encapsulated granules like sulfur coating will allow the nutrient to release when a flaw or rupture appears on the coating surface. In this case, rupture will happen because of permeation of water into coating and at heart osmotic pressure. Also, biodegradable polymers will release nutrients while destroying by soil microbes activity. In polymer coatings or combination of different coatings r elease will happen by diffusion of water through walls porosities. In this case release rate can be controlled by the particle size of coated granules, thickness of coating and permeability of coating surface.Also, changing the chemical composition of fertilizer core and also the coating will change permeability of coating. This means that even raw material or acidic environment will change the permeability. In some researches when the coating has been starch-vinyl, increasing size of encapsulated granules has led to slowing down the nutrient release 61,62.There are some standard test methods for measurement of controlled release properties. According To European standard the standard release time of N during 24 h should be 15%of total core nutrient. Also, release rate for 15 day should be 75% of total nutrients. Also American and Nipponese standards say that the initial release shouldnt be more than 40% of total nutrient.According to European standards for measuring the release r ate encapsulated fertilizer should be immersed in pure water at 25 C (room temperature) in incubated state 63, 64. For example Detrick et all 33 have investigated the release behavior of their product by immersion of 20 g of encapsulated granules for 8 h in water. After filtration of solid they dried the solid. Evaporation of water was done at 100 C for 8 hours. Also, Ma et all 21 placed 14 g of granules in wire mesh holder and then placed it into a jar with 300 ml water at 23 C and agitated it by an orbital shaker. Then, adequate water was taken for elemental analysis. Locquenghien et al 30 for investigation the slow release effect of fertilizer extracted some amounts of fertilizer continuously with water. For this purpose the granules were arranged in layer in a cylindrical vessel field with water. Water was passed through this layer and its nitrogen content was analyzed.2.9. Tracing nano-technology features in fertilizer industryReviewing literature shows that researches which ha ve used nano-technology features in fertilizer industry are very rare. Nano-Clay is the most common nano-particle which have been used to produce CRFs. The main benefits of nano-clay particles in these researches are using them as reservoir of urea or as filler for polymer coating.2.9.1. Nano-clay as carrier of ureaThe layered clays like montmorillonite and kaolinite are made of high aspect ratio nano layers. Large surface areas and reactivity of nanolayers is much greater than that of micrometer size materials. Also, their surfaces and interfaces provide an active substrate for physical, chemical, and biological reactions 65. Because of these features nanolayers could be a suitable carrier or reservoir of fertilizers.Mechanisms which are problematical in interaction between clay and organic materials depends on some factors like clay type, functional groups of organic material and physical or chemical properties of organic material. For example basic molecules bond strongly to mo ntmorillonite but non-ionic detergent molecules show much weaker interaction bands. Also, for instance benzoic acid or anionic species are adsorbed on the edge face of clay or cationic( crystal violet) are adsorbed on the basal plane.According to table 1 which shows different interaction of organic compound with clay, interaction between clay and urea could be through cation exchange, cation bridging and hydrogen bonding 66.Table 1Interactions between clay minerals and organic compounds 66MechanismMineral examplesOrganic functional groups involvedHydrophobic interactions (van der Waals)Any clay with neutral sites (e.g., kaolinite, smectites)Uncharged, non polar (e.g., aromatic, alkyl C)Hydrogen bondingAny clay with oxygen surfaces (e.g., kaolinite)Amines, carbonyl, carboxyl, phenylhydroxyl, heterocycle NProtonationAlumino silicate edge sites, Fe and Al oxides, allophane, imogoliteAmines, heterocycle N, carbonyl, carboxylate,Ligand exchangeAluminosilicate edge sites, Fe and Al oxide s, allophane, imogoliteCarboxylate, PhenolateCation exchange (permanent charge sites)Smectite, vermiculite, illiteAmines, ring NH, heterocyclic NpH-dependent charge sites (anion exchange usually, cation exchange rarely)Aluminosilicate edge sites, Fe and Al oxides, allophane, imogoliteCarboxylate for anion exchange, amines, ring NH, heterocyclic N for cation exchangeCation bridgingSmectite, vermiculite, illiteCarboxylate, amines, carbonyl, alcoholic OHWater bridgingReviewing
Sunday, June 2, 2019
Native Son Letter :: Native Son Richard Wright
June 17, 1938Dear Bigger,This letter comes to you because, I dont think you acted like a role model as your character in autochthonous Son. You play a huge role in the book. I would like to do what you get to do such as going where ever you ask anytime. Walking around offensive activitying your parents isnt going to help your relationship with them improve. You walk around with your best friends that are underage smoking and drinking which are setting defective examples. From your siblings, and your moms point of view I dont think that behavior would be acceptable. Everyday you walk around with your drooping down trying to find some unitary to take your anger out on just because you made a bad decision. You should not take your parents and sister for granted. If you ask me I would not disrespect my parents like you do. Im glad my parents are here on this Earth. They take care of me and Im not going to take it for granted. When I grow up I dont regard to be a smoker or a drinker . When I get mad I try not to take my anger out on someone else. Im usually just mad at myself for the stupid decision I made. Sincerely,
Saturday, June 1, 2019
How Much Working Capital Will I Need When I Buy a Website? :: Sell Website Buy Website
How Much Working Capital Will I Need When I Buy a Website?QuestionIf you defile a condescension and youre getting a loan, how much capital should you have available until the business starts generating income? For example, if I have $100,000 should I be looking for a business thats $50,000 keeping some back or should I look for a business thats over and try to find financing for the overage.Answer give thanks you for your excellent question. Believe it or not, many buyers overlook this and wind up in trouble soon afterward they acquire a business. What you are assay to determine is known as the working capital requirements of the business. This is the amount of money you will need available to fund the business after you take over until it becomes self-sufficient, meaning that there is enough inflow of cash to pay the bills.Unfortunately, there isnt a standard answer, solely it is something that you can easily calculate. Keep in estimation that every business scenario is differ ent. For example, if you acquire a business where clients pay immediately (i.e. a retail store), then you will have an inflow of cash the original day that you take over. On the other hand, if its a business where you grant payment terms to clients and the average time to collect is 30 days, then at a bare minimum, you will need at least one month of working capital (although I dont think that 30 days worth is enough, but Ill explain in a moment).The other thing to consider is inventory. If you will have to purchase products to sell prior to seeing payments form clients, here also your cash flow will be affected.The best way to approach this for any business is to do a forecast for the first six months after closing. Generally, you should take the average monthly revenue for the past 2 3 years. Then, factor in any seasonality to the business. For example, if you are buying a water sports equipment term of a contract business on the beach in Florida in May, you can certainly expec t sales to be far lower than they will be in December.Once you determine the average sales, then you must calculate all of the fixed costs that you will incur from day one. These are all of the expenses that the business will have that are not related to the sales. For example, if you have sales people on commission, their costs are only incurred when revenue is generated.
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