Sustainable Global Energy Options

Abstract In the recent past, nuclear energy sources have proofed dangerous to the environment due to the poisonous emissions they produce. Fossil fuels are also diminishing and their energy has become very expensive. Other sustainable sources do exist that are a bit cheaper, clean, renewable and long lasting.Advertising We will write a custom research paper sample on Sustainable Global Energy Options specifically for you for only $16.05 $11/page Learn More Technology can be applied to make some nuclear sources safer. The only problem that exists is the level of advancement in production of these sources although some countries such as the US and Germany have successfully invented in these sources. If these sources are embraced in all countries, in combination they can be able to produce more than enough energy that is capable of meeting the demand. These sources are safe and regardless of their technological advancement, they can be opted for in order to counter the inflation in the energy sector and save the environment from pollution. This is important as all irrespective of their financial status will be able to afford energy for various uses such as domestic and industrial needs. Introduction A sustainable energy can be defined as energy that can be harnessed and used in a manner that ensures a sustainable development for a long period of time. It concerns how the available resources can be utilized without strain due to the number of people demanding for its use. Here sustainability looks at the three pillars of development that is social, economic and environmental (Kruger 2006). Over the past, energy from nuclear emitters has been in use and it has been believed to be a safe form of energy, though in the recent, it has proved otherwise especially in matters concerning environmental pollution. The cost of fuel and energy has also gone very high. Therefore, there is a need for formulation of new policies that will encourage en ergy delivery in a more efficient and safer manner thus leading to an equitable, economic viable and environmental sound globe. According to a research report on a sustainable global renewable energy system, it is possible to achieve renewable energy sources at a global level by 2050; these sources will put in mind the level of poverty in the developing world, available resources, population growth, climate change and the energy demand in various sectors such as transport, industries, buildings and services. Energy is used in three major forms; fuel, heat and electricity. To achieve this sustainability in energy production, renewable sources such as solar, biogas, wind, hydropower, geothermal, waves and tides should be considered (Kruger 2006). Implementation and success of such sources of energy in various countries proves that options safer than nuclear energy exist and can be successfully implemented at their current level of development.Advertising Looking for research pape r on environmental studies? Let's see if we can help you! Get your first paper with 15% OFF Learn More Solar energy In this source of energy, two types are put into consideration, active and passive. In active, photovoltaic panels (PV) are used to convert sunlight into useful energy where as in passive, useful sun rays such as sunlight are trapped. In active type, the panels have cells that are composed of semiconductor materials such as silicon. In its development, important to consider is the availability of space in which to erect the panels (Dawson, Spannagle 2009). The amount of energy produced depends on the amount sunlight heating the panels thus the angle of sun’s incidence and the duration in hours of sunlight availability is also vital. It is a cost effective system in that no raw material is required neither is a station necessary for its operation. Maintenance is not required at a large scale and this makes it less expensive thus achievable also in the de veloping world. Solar energy is also inexhaustible as long as the sun is available. Apart from the disadvantaged countries where by the sun is affected by snow, hailstone and thick cloud cover and especially those at the poles, this energy are viable in many of the globe’s countries. The only extra cost that is incurred in harnessing this type of energy is the purchasing of storage facilities such as batteries and fuel cells. Environmentally, there is no form of pollution experienced with this kind of energy or any hazardous material produced apart maybe from residues emanating from the manufacture of the semiconductors used. No noise is produced, meaning that these plants can be placed near residential places and other environments where no noise is permitted such as learning institutions and hospitals. Apart from electricity, solar energy can be used to create fuel for example, by use of this energy to burn hydrogen and heat up biomass fuel. Generally, solar energy can be u sed for various uses ranging from domestic hot water (DWH) to industrial process heat (IPH), meaning that it can be able to cater for the current world energy needs (Dawson, Spannagle 2009). Most of the developing countries are near the equator and they can therefore be in a position to harness as much as the solar energy as possible. An example of country that has embraced solar energy is South Africa where a group known as solar energy international (SEI) advocates for use of this form of energy to ensure sustainability, poverty eradication and to embrace globalization. The group mobilizes development organization and other stakeholders by offering training and education on the use of the technologies involved. PV systems worth millions of dollars have been implemented in Indonesia and Philippines. Kenya is also mentioned among these countries. Although the initial cost for such projects is high, they become economical in their operational phases thus making it a viable source of energy even in the developing countries in the world.Advertising We will write a custom research paper sample on Sustainable Global Energy Options specifically for you for only $16.05 $11/page Learn More Wind power Wind is usually in the form of kinetic energy and through the use of turbines, is is possible to converse it into electric energy. Usually, these turbines are placed on a higher ground where the winds blow at a higher speed. Just like solar energy, wind power requires a large piece of land for the installations of the turbines (Kruger 2006). There are no hazardous products or dangerous emissions by these turbines compared to nuclear sources. The aesthetic value of the places of installation is affected but this effect is harmless to the surrounding. No raw material is required and this makes it a cost effective project to handle especially with the developing countries and the rising costs of other available sources of energy. Germany has hea vily invested in this type of energy with 17,574 installations in 2005 which generated 4.3per cent of the energy required. If f more emphasis is put on this, it is a viable source of energy in the current world. Besides its advantages, it is clear that it has some obvious demerits such as noise pollution produced by the rotating turbines. Therefore, it is not appropriate to install such stations near noise sensitive environments. Also, the wind is not available at all the times but this does not nullify its effectiveness because these turbines can be concentrated in regions such as off shores where there is a lot of wind that moves at a higher speed (Wengenmayr Bà ¼hrke 2008). Canada has also invested in wind power with 97% of its energy production coming from wind in 2005.Several installations have been put in place both by the government and individuals. In Canada a business turbine can produce up to 1,800 kW at a cost of between 2000-2750 Canadian dollars (Bernstein 2008).Though this source of energy is environmentally and economically sustainable, it has not been embraced by many nations, but with its success in some countries such as the above mentioned, it will be advisable for nations to consider this type of energy. Hydroelectric power The main source of energy here is flowing water. It can be regarded as a source of free electricity though the cost is incurred in the harnessing and transmitting. Its harnessing involves either impoundment or diversion of some water from a flowing river, although dam construction is the most common method used. Apart from distraction of the ecosystems such as migration of fish, this method is advantageous compared to the use of fossil fuels because the cost of operation is low and there no known forms of pollution experienced. To avoid much distraction to the fish ecosystem, propellers that are less harmful in turning the turbines can be used and ladders used to encourage fish movement upwards and downwards a river.Adv ertising Looking for research paper on environmental studies? Let's see if we can help you! Get your first paper with 15% OFF Learn More Large dams are not necessarily required as a micro one can produce enough electricity for a home or a farm, and this makes it affordable by a majority more so in the developing world (Green energy 2011). Although dam sites are determined by the available rivers and other uses such as recreational, industrial, settlement and other functions, the much that is produced combined with others can be enough for use. Countries with big rivers are advantaged because the energy harnessed can be used for industrial purposes. The created dams act as resoviours and create home for both terrestrial and aquatic life, controls rate of floods downstream of a river and at times can act as a tourist attraction center generating foreign exchange to that country. Hydro electricity can therefore be termed as a sustainable form of energy socially, economically and environmentally. It is used in most of the developed countries such as the United States of America where most of industries are located near w ater bodies in order to use the energy generated from this waters. Some good examples in the United States include Colorado River and Tennessee Valley. Other countries include Kenya, Canada, Germany and others. Though this form of energy can be affected by climatic changes which has affected the amount of water in the rivers, it is a safe and cleaner form of energy which can be produced for a long period of time (Green energy 2011). Nuclear options Nuclear energy production can be safe when especially the right technology is used; however, the wastes produced are what proofs troublesome. Nuclear fission occurs naturally and much can be gained by utilizing the natural process. If engineers can learn from their previous mistakes, then the improved design in power plant reactors can lead to a secure source of energy that is both environmental friendly and sustainable. One of the technologies is Uranium reprocessing where by just like in a fuel refinery, coal and biomass are used for th e production of electric power, liquid fuels and chemicals such as ammonia, a network of pipes is fed with hydrogen and carbon monoxide to produce fuel and other chemicals through various processes. The synthesis gas produced is used to burn coal and biomass in order to produce energy and chemicals. This is a process that is cheap in the sense that there are no extra costs for transportation, no need for a gasolification facility and the gas produced is more or less the same as a natural gas. Because of its ease production, both large and small scale processes can employ this technology for energy production. Chemicals produced like ammonia are used as fertilizers. Such technologies have been successful in the US and they have several advantages as compared to coal and petroleum (Suppes Storvic 2007). Other sources There are also other sources that can produce energy in a sustainable manner; such include the geothermal power where heat is harnessed fro underground through maybe a fl uid allowed to flow through the porous rocks which produces heat. This heat is eventually tapped through a turbine and used for electricity generation, in this technology, other forms of gases that are harmful to the environment can escape into the air thus causing pollution, this include, nitric oxide, sulphur and carbon dioxide. Energy can also be harnessed from the ocean, which is the use of tides and waves. In tides, water energy is used to drive water in and out of a dam thus driving an electrical turbine while the wave’s oscillations can be used to generate hydraulic pressure for driving motors which in turn can be used to produce electricity. These sources are environmentally friendly because there are no emissions involved although they cannot be used in most parts of the world since not all of them have oceans or are close to one and in any case the available ones cannot be enough to produce enough energy to meet the demand. Conclusion A number of sources for sustain able energy exist, but they have not been fully embraced. Though with the rising costs of fuel and the need to combat the effects rendered by the emissions produced during fossil fuel burning, there is an urgent need to consider all these alternatives in order to meet the energy demand in a more sustainable, effective, sufficient and environmental friendly manner. If all these forms of renewable energy sources are put in place, then it is possible to meet the energy demand at a global level. References List Bernstein, S. Bernstein, F. (2008). A globally integrated climate policy for Canada. Toronto: University of Toronto Press. Cowie, J. (2007). Climate change: biological and human aspects. London: Cambridge University Press. Dawson, B. Spannagle, G. (2009). The complete guide to climate change. London:Taylor Francis. Ferguson,Charles, (2007). Nuclear energy: balancing benefits and risks. New York: Council on Foreign Relations. Green energy. (2011). Hydro power as a renewable sourc e of energy. Web. Kruger, P. (2006). Alternative energy resources: the quest for sustainable energy. Ontario: John Wiley. Nationalatlsa.gov. (n.d) Renewable energy sources in the United States. Web. Suppes, J,G. Storvick, S.T. (2007) Sustainable nuclear power, Ontario: Academic Press. Wengenmayr, R., Bà ¼hrke, T. (2008). Renewable energy: sustainable energy concepts  for the future. Berlin: Wiley-VCH. This research paper on Sustainable Global Energy Options was written and submitted by user Amalia I. to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.

I intend to address this question by firstly Essay Example

I intend to address this question by firstly Essay Example I intend to address this question by firstly Essay I intend to address this question by firstly Essay I intend to turn to this inquiry by foremost puting out the footings of the Accession Treaty of 2003 in relation to the legal model of the transitional agreements which were applied to migratory workers from the freshly acceded eight cardinal and eastern European member provinces but non to the two Mediterranean provinces viz. Cyprus and Malta. I will so travel on to exemplify why some of the EU’s 15 member provinces chose to enforce these limitations, like Germany and Austria whilst others like the United Kingdom and the EIRE, for illustration did non. I will so show a decision based on all the available grounds, produced in a mensural manner. The Accession Treaty of 2003 concerned the accession to the European Union of the Czech Republic, Estonia, Cyprus, Latvia, Lithuania, Hungary, Malta, Poland, Slovenia and Slovakia. This was a Treaty signed in Athens on the 16Thursdayof April 2003. The Treaty provided for the accession of the above 10 new Member States to the European Union on the 1stof May 2004. The Treaty is divided into three parts including foremost, a Treaty between the 15 bing and the 10 new Member States, secondly an Act refering the conditions how the new member provinces would fall in the European brotherhood and any necessary amendments to the Treaties on which the European Union was founded, and eventually a Final Act of the parties to the Treaty. The Treaty granted subjects of Cyprus and Malta the same rights to work in another Member State as would hold been enjoyed by subjects of the bing 15 Member States. Those who came from theeight relevant provinces, viz. Czech Republic, Estonia, Latvia, Lithuania, Hungary, Poland, Slovenia and Slovakia nevertheless were the topic of the transitional commissariats in inquiry. These transitional commissariats were set out in Annexes V, VI, VIII, IX, X, XII, XIII and XIV of the Act of Accession described in the above paragraph. A brief sum-up of the transitional agreements follows that: for the first two old ages after accession ( i.e. until 30 April 2006 ) , Member States are free to use national steps or bilateral understandings curtailing the rights of subjects from the eight relevant provinces to work in their districts ; from 1 May 2006, Member States musteithergrant subjects from the eight relevant states the right to travel freely for the intent of work in conformity with Community jurisprudence,orcontinue to use national steps or bilateral understandings – up to 30 April 2009 ( or 2011, in exceeding fortunes ) . Prior to 1 May 2006, any Member State that has non imposed limitations on free motion of workers from the eight relevant provinces, or has relaxed them in the meantime, is free to enforce them or re-impose them.After that day of the month, any Member State that has granted the right of free motion in conformity with Community jurisprudence can bespeak the Commission to suspend in whole or in portion the application of that jurisprudence if the Member State undergoes or foresees perturbations to its labor market which could earnestly endanger the criterion of life or degree of employment in a given part or business.Such suspensions can last at most until 30 April 2011.[ 1 ] The focal point of the transitional agreements are clear from the paragraph above, the kernel of which is, in the initial 2 old ages following the pact, to let the bing members provinces to modulate the employment activity of subjects coming from the eight relevant new member provinces. Harmonizing to paragraph 1 the disparagements merely applies to free motion of workers and services and so does non use to freedom of constitution ( i.e. the freelance ) or motion for any other intent ( as pupils, pensionaries or self-sufficing individuals ) . These freedoms apply instantly upon entry into force of the new accession pact. Paragraphs 2 to 12 concern workers and paragraph 13 concerns both services and workers. Paragraph 2 provided that national in-migration jurisprudence will use to workers traveling fro Slovakia for two old ages, with a possible extension to five old ages. This rule’s range is limited to Articles 1-6 of Regulation 1612/68. Paragraph 3 required a reappraisal of the transitional period after two old ages but the consequences of the reappraisals were non adhering on those Member States that still wished to keep their national controls on workers. Even after five old ages under paragraph 5 the Member States could claim that there were serious perturbations of its labour market or menace thereof . This could ensue in the Member State applying limitations for a farther two old ages, upon presentment to the Commission. The discretion to go on limitations put with the Member States and was non capable to tribunal intervention. Member States such as the UK and Eire, which applied full free motion of workers had a particular precaution for seven old ages under paragraph 7. They needed the Commission’s permission to use it, a determination which could be overruled by the Council. A broad application of a full labor market was allowed by member provinces under paragraph 12 and after 2 old ages could ensue in application of full European Union regulations. Paragraph 13 allowed Germany to use limitations on the proviso of specified services for the whole of the seven-year passage period. In Declaration 20 of the Final Act it was recognised that these limitations apply to Austria and Germany’s entire district. Article 37 of the Act of Accession allows a precaution to be applied within the first three old ages after accession if there were major ec onomic troubles. As one can garner from this extended analysis of the statute law, the Germans and Austrian concerns were borne through and take into consideration in the existent pact. [ 2 ] In footings of why the limitations remained in some member provinces and other non, Baroness Scotland gives the United Kingdom Standpoint by stating: The United Kingdom has ever been proud of its tradition of tolerance, and we believe that we will profit both culturally and economically from new EU citizens. It makes sense for citizens of the new member provinces to be able to work, lend to our economic system and pay revenue enhancements. They will spread out the scope of accomplishments and supply of workers in the UK economic system. It is true that some other member provinces will non open their labor markets. It is because their markets are less unfastened and less flexible than ours that they perform less good. If one were to inquire any of ourable economic experts, they would corroborate that it is the loss of the other states that they choose that way. It is wholly natural that others should wish to come to this state to lend to and portion in our success, and this is to be welcomed.[ 3 ] Her statement outlines the economic, societal and cultural grounds why she sought non to enforce the limitations and gives some penetration into why other member provinces did. Germany and Austria were concerned plenty about an inflow of immigrants to enforce the limitations. At paragraph 60 of the study Chapter 3: the Impact of the last expansion it was said: In states where people think that they have been well affected by the 2004 expansion, resistance to future expansions is peculiarly strong. This applies peculiarly to Austria and Germany- which are geographically near to the new Member States and have received a important portion of workers from these states even in front of their accession. It besides applies to France and the Netherlands, whicH feared a loss of influence and individuality in the enlarged Union ( Q 56 ) While the people in the old EU-15 fright chiefly the economic effects of expansion, political elites are more concerned with the impact on how an EU of 25 ( and shortly 27 or 28 ) Member States functions.[ 4 ] Here once more we see the economic concerns of member provinces who were closer in propinquity to the relevant new member provinces, and besides some frights for loss of political power due to the expansion. Ironically at paragraph 77 of the above study the economic experts say that although most of the old EU Member States, trade and investing links with the campaigner states were merely excessively little to hold a direct, mensurable impact on their economic systems, the lone exclusions to this are Germany and Austria, which conduct important trade with the new members and, alongside France and the Netherlands, history for the biggest portion of foreign investing at that place. It is these states that are likely to be among the biggest net victors from expansion. Arguably nevertheless at the clip these frights were justified as 60 per cent of the about one million East Europeans who had moved to the EU before accession went to Germany, with Austria taking another 5-10 per cent. Thi s is a immense figure of up to 70 per cent spread between merely 2 of the 15 bing member provinces, prior to the execution of the Accession Treaty. In decision it can be seen that the footings of the Accession pact were full and the transitional agreements played an of import function in modulating how the subjects of the new 8 provinces, incorporated into the labor market within the EU. The limitations on free motion are surely noteworthy within this respect. It is clear that economic and cultural considerations were behind why some member provinces chose to enforce limitations and others didn’t. Most markedly nevertheless, the experience of Germany in holding an inflow of East European migrators even before the Accession Treaty gives some acceptance to their evidences for resistance of Accession and infliction of the limitations. Bibliography European Accession Bill: Explanatory notes HMSO hypertext transfer protocol: //64.233.183.104/search? q=cache: csIIsFsw9n0J: www.fco.gov.uk/Files/kfile/EU % 2520 ( Accessions ) % 2520Bill % 2520 % 2520Explanatory % 2520Notes,0.doc+Accession+treaty+2003 A ; hl=en A ; gl=uk A ; ct=clnk A ; cadmium Chapter 3: the Impact of the last enlargement HMSO hypertext transfer protocol: //www.publications.parliament.uk/pa/ld200506/ldselect/ldeucom/273/27306.htm Peers, Stuart, Statewatch: Evaluation of the EU Accession Treaty www.statewatch.org/news/2003/feb/accession.pdf House of Lords, Friday, 23 April 2004: Accession ( Immigration and Worker Registration ) Regulations 2004 hypertext transfer protocol: //www.publications.parliament.uk/pa/ld200304/ldhansrd/vo040423/text/40423-01.ht m Regulation 1612/68

The Role of Company Directors Essay Example | Topics and Well Written Essays - 2500 words

The Role of Company Directors - Essay Example Fiduciary duty is inherent amidst the interaction between directors and their company, trustees and their trusts, and lawyers and their customers. Barnet (2008) has defined fiduciary duty as a model of care observed in a legal correlation of faith and assurance involving an individual in a position of control, authority or influence, and another who is reliant on the appropriate exercise of that power...intrinsic in fiduciary duty is the accountability to perform in excellent confidence and honesty, the duty to work in the interests of the principal and to shun self-dealing transactions, and the commitment to not wield unreasonable demands or to proceed without the awareness and blessing of the principal. In a landmark case involving Caremark International Inc.1996 by the Delaware Chancery Court, the role of company’s directors was expanded to encompass liability in monitoring the company’s operations or ‘oversight liability’. This in effect meant that the directors had a fiduciary duty of closely supervising or overseeing the company’s daily transaction thus had to keep up-to-date on the regular operations of the corporation. The Delaware Supreme Court’s decision, Stone v. Ritter [Del. Supr., Jan. 27, 2009] upheld that the directors’ failure to ‘act in the face of a known duty to act’ is a breach of the duty of loyalty. To stem the excesses of the corporations in the US, the Sarbanes-Oxley Act was enacted even as the courts stepped up punitive actions on errant directors and firms engaging in fraudulent activities. As a consequence, many directors are increasingly getting more involved in the company’s operations to offset being charged with negligence and abdication of their fiduciary duties (Rehfeld, 2005).

Consultancy Skill and Organisational Change Essay

Consultancy Skill and Organisational Change - Essay Example The vitally of change is evident in the adjustments made by organisations in their goals. There are several elements that contribute to this observation. External and internal changes are usually the classification maintained by organisations. Categorising change according to impact allows firms to use appropriate measures and techniques. There are important considerations specified by firms in implementing policies for change. Most of these programmes are studied and deliberated before infused in an organisation. It is imperative for companies to assess the strategy before making adjustments. This will prevent the entities involved from acting differently. The versatility of firms is also a critical aspect when dealing with change. In most instances, organisations that are open to change succeed in the industry. Moreover, the preparation of contingency strategies is also needed when dealing with changes. Firms that resist change have experienced difficulties in dealing with problems and opportunities. It is important for organisations to understand that change is both inevitable and intrusive. There will come a period in a business cycle when a company has to make radical changes. Change also affects the manner in which the general policies of organisations are made. Success in the current global setup is dependent on how firms manage change. The succeeding discussions will tackle organisational changes that have transpired in British Airways. The Company is viewed as a classic case where culture was changed because of demand both within the organisation and outside market forces. II. Organisational Change The stages of change, as derived from the study of Booth-Butterfield (1996) start with pre-contemplation. In this stage the supposed change has yet to gain the awareness of involved entities. Contemplation is a stage shows that the employees are aware of the change. But the focus of the personnel is on different concerns. Then, the employees are prepared for the implementation of changes. In addition, the employees are tasked to perform the modification and provided with maintenance programmes. Prochaska, et al (2001) devised a process that prepares involved entities to change. The cycle starts with the raising of consciousness among the employees. In addition, employees are given with proper tools to handle the change . This is more than just compliments but actual benefits in the growth of the personnel. Moreover, employees are given opportunities to let go of their emotional contentions. This is usually done when the change starts to take effect within an organisation. The employees are then subjected to further evaluation. This is more of a comparison of behaviour before and after the change. Since the problems are identified, the management needs to eliminate stressful components of change. It means that negative stimuli stalling good behaviour will be removed. The company also needs to emphasise on the commitment of the employees to change. This is like a renewed assurance to accept change. The last phase of the process involves finding the proper behaviour for expected changes. This also includes the elimination of bad behaviours that were observed. Schein (1999) created a model that describes change. This method was called cognitive definition. The first stage involved motivation to change . This process is more of a self-evaluation that employees need to determine. The stage includes acceptance that previous actions failed. The second part of the model asserts changes in needed areas. Most firms are concerned about the extensive resources which will be devoted for the activity. But the benefits of this initiative will alter the cost. It is critical for

Nu Metal as A Genre in Music Essay Example | Topics and Well Written Essays - 2000 words

Nu Metal as A Genre in Music - Essay Example If addiction is to be defined with respect to music then it is love and passion. Music takes many forms. Each genre is unique. Styles, region and origin make them apart but music brings them together. A very special genre of music that embeds power and melody in a magical harmony is Rock Music. Rock music has its origin in the late 1940's in the United States (Christe, Ian 2003).Typically, Rock music is accompanied by Guitar, Bass, Drums and often a Keyboard. Vocals play a prominent role in this form of music. Much attention goes towards the melody in vocals and the Electric guitar dominates the foreground. In the beginning Rock music was primarily popular in United Kingdom and the United States but by 1960's it started to gain world wide popularity. Chuck berry in 1955 invented Rock and Roll (Christe, Ian 2003). It was after him that the British blues had come up with increased speed of their rhythm guitars. Their music had a driving power that no other music on earth had. A few years later Beatles band was formed. This band went on to achieve world wide success. They were the first proponents to bring guitars on to stage. They turned their music into a mass media attraction. Various forms of rock music were derived later and each had its own significance. The evolution of various genres in rock music is mainly associated with time. In 1960's a blend of Rock music with folk and jazz respectively came up and were known as Folk rock and Jazz rock. In 1970's a number of subgenres of rock music came up with the influence of soul and self importance. These include soft rock, progressive rock, art rock, techno rock, synth rock and punk rock. (Christe, Ian 2003) 1980's was the golden era in the history of rock music that saw the birth of hard rock, heavy metal and alternate rock. Thanks to bands like Metallica (Thrash metal), Megadeth (Speed Metal) and Iron Maiden (Hard Rock) that shook the world with almost all of their albums striking gold. They obsessed death, pain, hatred and evils in the society and that reflected in their lyrics as well. This drew the angry young crowd towards Metal Mania that spread like plague across the world in no time. Rock music established itself as a major business at International level. 1990's saw the time for Grunge style rock, Brit pop and Indie Rock. A new musical genre in the mid 90's that has its origin from Alternate metal, Thrash and Hard rock came up as "NU METAL". (Kitts, Jeff and Tolinski, Brad 2002) Apart from these forms many others like punk rock, psychedelic rock, soulful rock; Speed Metal, Black Metal, Death Metal, Thrash Metal, Underground, fusion etc have come up with improvements over their ancestral or base forms of Rock music. Each of these forms of Rock music has its own history and origin specifics and bands that are real professionals. Each form has its own pros and difficulty level in composing and performing. Each has its own way of drawing crowds towards it. Creativity in each and every aspect of the basic attributes associated with Rock music is what differentiates these genres of Rock music. Nu Metal: A new Genre A new perception arrived in the minds of the people that style in performance

Dc Power Source Utilization Engineering Essay

Dc Power Source Utilization Engineering Essay Many industrial applications have begun to require higher power apparatus in recent years. Some medium voltage motor drives and utility applications require medium voltage and megawatt power level. For a medium voltage grid, it is troublesome to connect only one power semiconductor switch directly. As a result, a multilevel power inverter structure has been introduced as an alternative in high power and medium voltage situations. A multilevel inverter is a power electronic device built to synthesize a desired AC voltage from several levels of DC voltages. The concept of multilevel converters has been introduced since 1975. The term multilevel began with the three-level converter. Subsequently, several multilevel converter topologies have been developed. Plentiful multilevel converter topologies have been proposed during the last two decades. Contemporary research has engaged novel converter topologies and unique modulation schemes. Moreover, there are three different major multilevel converter structures which are cascaded H-bridges converter with separate dc sources, diode clamped (neutral-clamped), and flying capacitors (capacitor clamped) [1] Although the diode clamped multilevel inverter is commonly discussed in the literature, there has been considerable interest in the series connected or cascaded H-bridge inverter topologies [2]. However, the elementary concept of a multilevel converter to achieve higher power is to use a series of power semiconductor switches with several lower voltage dc sources to perform the power conversio n by synthesizing a staircase voltage waveform. Capacitors, batteries, and renewable energy voltage sources can be used as the multiple dc voltage sources [1]. Multilevel power conversion has become increasingly popular in recent years due to advantages of high power quality waveforms, low electromagnetic compatibility (EMC) concerns, low switching losses, and high-voltage capability. The primary disadvantage of multilevel power conversion technology is the large number of semiconductor devices required. This does not yield a significant cost increase since lower-voltage devices may be used. However, an increase in gate drive circuitry and more elaborate mechanical layout are required [3]. Project Overview This project will involve in the design and construction of a single phase 3-level H-bridge inverter using the IGBTs. An H-bridge is an electronic circuit which enables a voltage to be applied across a load in either direction. These circuits allow DC motors to run forwards and backwards. H-bridges are available as integrated circuits, or can be built from discrete components. In this single phase H-bridge inverter circuit, the IGBTs are used as power devices that will be operated as a switch by applying control signal to gate terminal of IGBTs. The insulated gate bipolar transistor or IGBT is a three-terminal power semiconductor device, noted for high efficiency and fast switching. The software that will be used is MATLAB Simulink. Simulink is a commercial tool for modeling, simulating and analyzing multidomain dynamic systems. Its primary interface is a graphical block diagramming tool and a customizable set of block libraries. The Aims and Objectives The aim of this project is to simulate a single phase 3-level H-bridge inverter (DC to AC converter) using the MATLAB Simulink and constructed it. The objectives of this project are as follows: To investigate the application of H-bridge inverter. To assemble using the software, circuits implementation, and troubleshoot for the hardware. To analyze the operation of the single-phase 3-level inverter for software and hardware. CHAPTER 2 LITERATURE REVIEW Inverter Power electronics converters may be classified into four categories based on the source and types of the desired output characteristics as shown in Figure 1.1 below: OUTPUT AC DC AC INPUTRECTIFIER REGULATORS DC CHOPPERS INVERTERS Figure 2.1: Converter Classification DC-to-AC converter is known as inverter. The function of an inverter is to change a DC input voltage to a symmetrical AC output voltage of desired magnitude and frequency. The variable output voltage could be fixed or variable at a fixed or variable frequency. Inverter can be built in many output phases which is normally use in practice like single phase inverter and three phase inverter. The implementation of the inverter circuit must to be involved in application of the power devices like SCR, MOSFET, IGBT, GTO, and Forced-Commutated Thyristor which is controlled to turning ON and turning-OFF in its operation as a converter. This inverter generally use PWM control signal for producing an AC output voltage [3]. Single Phase H-Bridge Inverter Operation The H-Bridge Inverter or sometimes called Full Bridge consists of four switches (see Figure 2.2). A boost converter is required as this system has no means of stepping up the input. Switches S1-S4, and S2-S3 make up two switch pairs. When S1and S4 are on, the output voltage is a positive pulse, and when S2 and S3 are on, the output is a negative pulse. The phase sequence, frequency, output magnitude and harmonics can be controlled through appropriate switching devices, in conjunction with other equipment. Figure 2.2: Single phase H-bridge inverter Single Phase Multilevel H-Bridges Inverter There are two types of multilevel H-bridge inverter that can be selected in this project which are separated dc source and single DC source. These two types have its pros and cons. The advantages of separated DC source are: The number of possible output voltage levels is more than twice the number of dc sources (m = 2s + 1). The series of H-bridges makes for modularized layout and packaging. This will enable the manufacturing process to be done more quickly and cheaply. while the disadvantage is: Separate dc sources are required for each of the H-bridges. This will limit its application to products that already have multiple SDCSs readily available. Each H-bridge cell requires an isolated dc source. The isolated sources are typically provided from a transformer/rectifier arrangement, but may be supplied from batteries, capacitors or photovoltaic arrays to add up the output voltages. This topology was patented by Robicon Group in 1996 and is one of the companies standard drive products.[2] On the other hand, for the single DC source multilevel H-bridge inverter, the advantage of this type of connection is only one DC supply is used. This will not limit its application to products. And the disadvantage of single DC source is transformer is needed to add up the output voltages Separated DC Source Multilevel H-Bridges Inverter A single-phase structure of an m-level cascaded inverter is illustrated in Figure 2.3. Each separate dc source (SDCS) is connected to a single-phase full-bridge, or H-bridge, inverter. Each inverter level can generate three different voltage outputs, +Vdc, 0, and -Vdc by connecting the dc source to the ac output by different combinations of the four switches, S1, S2, S3, and S4. To obtain +Vdc, switches S1 and S4 are turned on, whereas -Vdc can be obtained by turning on switches S2 and S3. By turning on S1 and S2 or S3 and S4, the output voltage is 0. The ac outputs of each of the different full-bridge inverter levels are connected in series such that the synthesized voltage waveform is the sum of the inverter outputs. The number of output phase voltage levels m in a cascade inverter is defined by m = 2s+1, where s is the number of separate dc sources [1]. Figure 2.3: Single-phase structure of a multilevel cascaded H-bridges inverter An example phase voltage waveform for a nine-level cascaded inverter and all H-bridge cell output waveforms are shown in Figure 2.4. In this thesis, all dc voltages are assumed to be equal. According to sinusoidal-liked waveform, each H-bridge output waveform must be quarter-symmetric as illustrated by V1 waveform in Figure 2.2. Obviously, no even harmonic components are available in such a waveform. To minimize THD, all switching angles must be numerically calculated. Figure 2.4: Waveform showing a nine-level output phase voltage and each H-bridge output voltage. One of the advantages of this structure is the number of possible output voltage levels is more than twice the number of dc sources (m = 2s + 1). The other advantage is the series of H-bridges makes for modularized layout and packaging. This will enable the manufacturing process to be done more quickly and cheaply. On the other hand, the main disadvantage of this topology is that separate dc sources are required for each of the H-bridges. This will limit its application to products that already have multiple SDCSs readily available. The sources are typically provided from a transformer/rectifier arrangement, but may be supplied from batteries, capacitors or photovoltaic arrays. Single DC source Multilevel H-Bridges Inverter Referred to Zhong Du1, Leon M. Tolbert, John N. Chiasson, and Burak ÃÆ'-zpineci thesis entitled A Cascade Multilevel Inverter Using a Single DC Source, a method is presented showing that a cascade multilevel inverter can be implemented using only a single DC power source and capacitors. Without requiring transformers, the scheme proposed allows the use of a single DC power source for examples a battery or a fuel cell stack while the remaining nà ¢Ã‹â€ Ã¢â‚¬â„¢1 DC sources being capacitors. Figure 2.5 shows the Single DC source Multilevel H-Bridges Inverter. The DC source for the first H-bridge (H1) is a DC power source with an output voltage of Vdc, while the DC source for the second H-bridge (H2) is a capacitor voltage to be held at Vdc/2. The output voltage of the first H-bridge is denoted by v1 and the output of the second H-bridge is denoted by v2 so that the output of this two DC source cascade multilevel inverter is v(t) = v1(t)+v2(t). By opening and closing the switches of H1 appropriately, the output voltage v1 can be made equal to à ¢Ã‹â€ Ã¢â‚¬â„¢Vdc, 0, or Vdc while the output voltage of H2 can be made equal to à ¢Ã‹â€ Ã¢â‚¬â„¢Vdc/2, 0, or Vdc/2 by opening and closing its switches appropriately. Figure 2.5: Single DC source Multilevel H-Bridges Inverter IGBTs Versus MOSFETs The power MOSFET is a device that is voltage- and not current-controlled. MOSFETs have a positive temperature coefficient, stopping thermal runaway. The on-state-resistance has no theoretical limit, hence on-state losses can be far lower. The MOSFET also has a body-drain diode, which is particularly useful in dealing with limited free wheeling currents. All these advantages and the comparative elimination of the current tail soon meant that the MOSFET became the device of choice for power switch designs. Then in the 1980s the IGBT came along. The IGBT combines the cross between the power MOSFET and a bipolar power transistor (see Figure 2.2). The IGBT has the output switching and conduction characteristics of a bipolar transistor but is voltage-controlled like a MOSFET. In general, this means it has the advantages of high-current handling capability of a bipolar with the ease of control of a MOSFET. However, the IGBT still has the disadvantages of a comparatively large current tail and no body drain diode. Early versions of the IGBT are also prone to latch up, but nowadays, this is pretty well eliminated. Another potential problem with some IGBT types is the negative temperature co-efficient, which could lead to thermal runaway and makes the paralleling of devices hard to effectively achieve. This problem is now being addressed in the latest generations of IGBTs that are based on non-punch through (NPT) technology. This technology has the same basic IGBT structure (see Figure 2.6) bu t is based on bulk-diffused silicon, rather than the epitaxial material that both IGBTs and MOSFETs have historically used [4]. Figure 2.6: NPT IGBT cross section The comparisons between MOSFETs and IGBTs are as below: Table 2.1: Comparisons between IGBTs and MOSFETs IGBTs MOSFETs Characteristics Low duty cycle Low frequency ( Narrow or small line or load variations High-voltage applications (>1000V) >5kW output power Operation at high junction temperature is allowed (>100 °C) Long duty cycles High frequency applications (>200kHz) Wide line or load variations Low-voltage applications ( Applications Motor control: Frequency Uninterruptible power supply (UPS): Constant load, typically low frequency Welding: High average current, low frequency ( Low-power lighting: Low frequency ( Switch mode power supplies (SMPS): Hard switching above 200kHz Switch mode power supplies (SMPS): ZVS below 1000 watts Battery charging [4] Applications of Inverters There are many application of inverter available today. Some of the applications are as follows: DC power source utilization An inverter converts the DC electricity from sources such as batteries, solar panels, or fuel cells to AC electricity. The electricity can be at any required voltage; in particular it can operate AC equipment designed for mains operation, or rectified to produce DC at any desired voltage. Grid tie inverters can feed energy back into the distribution network because they produce alternating current with the same wave shape and frequency as supplied by the distribution system. They can also switch off automatically in the event of a blackout. Micro-inverters convert direct current from individual solar panels into alternating current for the electric grid. Electric vehicle drives Adjustable speed motor control inverters are currently used to power the traction motor in some electric locomotives and diesel-electric locomotives as well as some battery electric vehicles and hybrid electric highway vehicles such as the Toyota Prius. Various improvements in inverter technology are being developed specifically for electric vehicle applications. In vehicles with regenerative braking, the inverter also takes power from the motor (now acting as a generator) and stores it in the batteries. Uninterruptible power supplies An uninterruptible power supply (UPS) uses batteries and an inverter to supply AC power when main power is not available. When main power is restored, a rectifier is used to supply DC power to recharge the batteries. Variable-frequency drives A variable-frequency drive controls the operating speed of an AC motor by controlling the frequency and voltage of the power supplied to the motor. An inverter provides the controlled power. In most cases, the variable-frequency drive includes a rectifier so that DC power for the inverter can be provided from main AC power. Since an inverter is the key component, variable-frequency drives are sometimes called inverter drives or just inverters. Induction heating Inverters convert low frequency main AC power to a higher frequency for use in induction heating. To do this, AC power is first rectified to provide DC power. The inverter then changes the DC power to high frequency AC power. CHAPTER 3 METHODOLOGY Introduction This chapter exposes the proposed method of this project to built single phase multilevel H-bridge inverter. This project can be divided into two main parts of study which are software and hardware implementation. For the software part, the software used is PIC24 Compiler that used to do the programming for the microcontroller part and MATLAB to do the simulation of the inverter circuit before implemented it in hardware. In addition, Proteus 7 Professional is also used to simulate the driver circuit before do the hardware. The summary of the project is shown in Figure 3.1. Software Part Prepared (Microcontroller) Hardware Part Prepared Troubleshooting Interfacing Result Figure 3.1: The project summary Design of the H-Bridge Inverter System The H-Bridge inverter system can be divided into three main stages that were constructed. It is consists of: Microcontroller Power electronics driver Power electronics inverter Each part was treated as a separate functional block system. Figure 3.2 below shows the block diagram of how each stage of the inverter system are organized. Power electronic driver circuit and microcontroller stage is the low voltage side and power electronics inverter circuit is the high voltage side. DC Voltage Input AC Output Power Electronics Inverter Circuit Microcontroller Power Electronic Driver Circuit Figure 3.2: The block diagram of the inverter system Microcontroller Microcontroller is a computer-on-a-chip optimised to control electronic devices. The microcontroller chip used for this project is PIC16F877A. In this project, microcontroller is used to develop the triggering signal for the IGBTs and interfacing to the single phase inverter circuit as a control signal for the gate driver. To implement the microcontroller part, the program for triggering the IGBTs was written in assembly language using the PIC C Compiler. It is written in the text editor or notepad called as source code. It also can be written directly in the PIC C Compiler. Then the file saved is *file.c file. After the program is successfully compiled, the *file.hex file was generated. The hex file was tested by doing the simulation in the Proteus 7 Professional to see the output generated from the program. After got the correct output, the *file.hex file then was uploaded in the PIC16F877A using the PIC programmer. The process of implementing the microcontroller is shown in Figure 3.3. This microcontroller part is the first part that was implemented in hardware. Figure 3.3: The process of implementing the microcontroller Power Electronics Driver A driver is an electronic component used to control another circuit or other component, such as a high-power transistor. Unlike the bipolar transistor, which is current driven, IGBTs, with their insulated gates, are voltage driven. It is allows user to speed up or slow down the switching speeds according to the requirements of the application. The control circuitry supplied low current driving signals that are referenced to controller-ground. A logic one signal was applied to its gate with respect to its source to turn on an IGBT switch, and this signal needs to restrain sufficient power. These requirements can not be met by the control circuit. Figure 3.5 shows a diagram of how signals need to be applied to IGBT switches for effective operation. Figure 3.4: Control signals need to be applied to the gate with respect to the source The driver chose is IR2110 which is a dual driver. The IR2110 High Voltage Bridge Driver is a power integrated circuit that is designed to drive two insulated gate devices. The typical connection of the driver is shown in Figure 3.5. The two channels of the IR2110 are completely independent of one another. The HO output is controlled by the HIN input, and the LO output is controlled by the LIN input. The two inputs of the IR2110 are logically coupled to the shutdown (SD) pin through an AND gate. If HIN and LIN both go high, then the IR2110 will be shut down until one or both inputs go low. This measure helps prevent the catastrophic situation where both Q1 and Q2 turn on at the same time and short circuit the input source. [5] Figure 3.5: Typical connection of IR2110 High Voltage Bridge Driver Isolation using the optocoupler An optocoupler or sometimes refer to as optoisolator allows two circuits to exchange signals yet remain electrically isolated. This is usually accomplished by using light to relay the signal. The standard optocoupler circuits design uses a LED shining on a phototransistor. The signal is applied to the LED, which then shines on the transistor in the ic.   The optocoupler circuit is shown in Figure 3.6 below. In this project, the optocoupler is used as the source and destination are at very different voltage levels, where the source is the microprocessor which is operating from 5V DC but it being used to control the IGBTs which is switching at higher voltage. In such situations the link between the two must be an isolated one, to protect the microprocessor from overvoltage damage. The optocouplers can be used with following advantages for driving high side IGBT in any topology: They can be used to give a very high isolation voltage Signals from DC to several MHz can be handled by opto-couplers. They can be easily interfaced to Microcomputers or other controller ICs or any PWM IC. Figure 3.6: Optocoupler circuit The circuit of low side voltage which consists of PIC, driver and optocoupler was first constructed in the Proteus 7 Professional to see the output generated to be compared with the hardware results. The circuit is as in Figure 3.7 below. Figure 3.7: Low side voltage simulation Power Electronic Inverter The power electronics inverter part is the main part of the system. This is because this circuit will perform the conversion from DC to AC. The circuit consists of four IGBT that act as a switch, DC source and also the load. Figure 3.8 shows a diagram of the H-Bridge power electronics inverter stage. Figure 3.8: H-Bridge power electronics inverter stage. But for this project, the inverter circuit used is the 3-level H-bridge inverter circuit. The circuit was first constructed in the MATLAB as in Figure 3.9 and the simulation of the circuit was done to see the result of simulation. Figure 3.9: 3-level H-bridge inverter circuit constructed in MATLAB The block parameter for the IGBTs was set as in Figure 3.10. The switching frequency used for this circuit is 50Hz. So, the period of waveform can be calculated as below: Switching frequency, f = N / Pf Fundamental period, Pf = 1 / f fundamental = 1/ 50 = 0.02s Figue 3.10: The block parameter setting for the IGBTs In addition, the phase delay or switching times of the IGBTs were also set. Table 3.1 below shows the switching time of the IGBTs. After the simulation was success, the circuit of single 3-level H-bridge inverter was constructed. Table 3.1: The switching time of the IGBTs IGBTs Switching Time IGBT 1 and IGBT 3 10 ms (à Ã¢â€š ¬) IGBT 2 and IGBT 4 0 ms (0 à Ã¢â€š ¬) IGBT 5 and IGBT 7 7 ms (à Ã¢â€š ¬/7) IGBT 6 and IGBT 8 3 ms (à Ã¢â€š ¬/3) For the switch, IRGB10B60KDPBF IGBT was selected for this design. It is very important to choose the correct switches for the inverter circuit because the performance of the design is directly depends on this. This IGBT was chosen because it has ultra fast recovery diode along, it offered benchmark efficiency for motor control and excellent current sharing in parallel operation. In addition the IGBT was selected as they are able withstand the power rating of the inverter. Table 3.2 shows some of the features of the selected IGBT. Table 3.2: The features of IRGB10B60KDPBF IGBT Characteristics Value Drain to Source Voltage (Vds) 600V Drain Current (Id) 12A Rise Time 20ns Fall Time 23ns Short Circuit Capability 10ÃŽÂ ¼s Figure 3.4: 3-level H-bridge inverter circuit

Introduction :: Computer Science

Introduction ============ I have been asked to create a solution to computerise a system for Super Sports who sell sports shoes. The system that I will create will follow the specification given to me. I will include some hand drawn sketches of the forms I will create. I hope for the system to be user friendly and easy to navigate throughout. The new system will have to store data, calculate totals and quantities. I will make use of command buttons and macros within excel to navigate and to record data. I will also make se of the following advanced functions. Macro’s Linked to Command Buttons On-Screen Help Filtering Data Use of the IF Function Pivot Tables The VlookUp Function I also need to make a web page that has pictures of all the available shoes with details and descriptions of all for sale. Also on the page I will give all these details plus the company’s contact details. I will include relevant documentation for this solution in the form of a user guide, this guide will aim to train the staff in using the software. Description of Development. I started off with a black spreadsheet form Microsoft Excel. I changed the background colour of the whole sheet. I added a selection of command buttons to the form to navigate through the system; I also added a title to the page. I then renamed the sheet to â€Å"Welcome Page† I than added some more sheets as I thought I would need them as I progressed through the application. I then moved onto the second sheet, which I called â€Å"Cost† On this form I used the â€Å"VlookUp function to link the shoe type with price, this will make sure tat the quality, shoe and price are all correct. I also used some validation on this form, in the type of list validation, this allows the user to select data from this list box only. I added a Command button to this page to navigate back to the welcome screen. I then created a total sheet, all this sheet does is hold the total amount of shoes sold. I then created the sheet called â€Å"Shoes† This shoes hold the prices per pair of shoes and the increment for the quality sole. The next sheet I made was the Orders Sheet, this sheet holds all the details of orders placed. It also has a graph which I have made to display the amount of orders placed. The final sheet is called customer Details, I have set this sheet up to store the details of all customers that place orders through super sports. Throughout this project I have used the following advanced features:

Indian Mathematicians And Their Contributions Essay

Ramanujan He was born on 22na of December 1887 in a small village of Tanjore district, Madras. He failed in English in Intermediate, so his formal studies were stopped but his self-study of mathematics continued. He sent a set of 120 theorems to Professor Hardy of Cambridge. As a result he invited Ramanujan to England. Ramanujan showed that any big number can be written as sum of not more than four prime numbers. He showed that how to divide the number into two or more squares or cubes. when Mr Litlewood came to see Ramanujan in taxi number 1729, Ramanujan said that 1729 is the smallest number which can be written in the form of sum of cubes of two numbers in two ways, i.e. 1729 = 93 + 103 = 13 + 123 since then the number 1729 is called Ramanujan’s number. In the third century B.C, Archimedes noted that the ratio of circumference of a circle to its diameter is constant. The ratio is now called ‘pi ( ÃŽ   )’ (the 16th letter in the Greek alphabet series) The largest numbers the Greeks and the Romans used were 106 whereas Hindus used numbers as big as 1053 with specific names as early as 5000 B.C. during the Vedic period. ARYABHATA Aryabhatta was born in 476A.D in Kusumpur, India. He was the first person to say that Earth is spherical and it revolves around the sun. He gave the formula (a + b)2 = a2 + b2 + 2ab He taught the method of solving the following problems: BRAHMAGUPTA Brahma Gupta was born in 598A.D in Pakistan. He gave four methods of multiplication. He gave the following formula, used in G.P series a + ar + ar2 + ar3 +†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. + arn-1 = (arn-1) à · (r – 1) He gave the following formulae : Area of a cyclic quadrilateral with side a, b, c, d= √(s -a)(s- b)(s -c)(s- d) where 2s = a + b + c + d Length of its diagonals = SHAKUNTALA DEVI She was born in 1939 In 1980, she gave the product of two, thirteen digit numbers within 28 seconds, many countries have invited her to demonstrate her extraordinary talent. In Dallas she competed with a computer to see who give the cube root of 188138517 faster, she won. At university of USA she was asked to give the 23rd root of 91674867692003915809866092758538016248310668014430862240712651642793465704086709659 32792057674808067900227830163549248523803357453169351119035965775473400756818688305 620821016129132845564895780158806771. She answered in 50seconds. The answer is 546372891. It took a UNIVAC 1108 computer, full one minute (10 seconds more) to confirm that she was right after it was fed with 13000 instructions. Now she is known to be Human Computer. BHASKARACHARYA He was born in a village of Mysore district. He was the first to give that any number divided by 0 gives infinity (00). He has written a lot about zero, surds, permutation and combination. He wrote, â€Å"The hundredth part of the circumference of a circle seems to be straight. Our earth is a big sphere and that’s why it appears to be flat.† He gave the formulae like sin(A  ± B) = sinA.cosB  ± cosA.sinB

Back in the Playground Blues Essay Example

Back in the Playground Blues Essay Example Back in the Playground Blues Paper Back in the Playground Blues Paper Essay Topic: poem The poem Back in the Playground Blues written by Adrian Mitchell is about a boy remembering about the time that he was at the playground. The poem is written in first person, and the I of the poem is completely scared of the playground. He remembered the time which he was there and of how much he suffered. He felt as if he was trapped in the big playground compared to his size, left unprotected by their parents from the rulers of the Killing ground, and hoping that he wouldnt be the one chosen by them to make fun of. The I also criticizes that the rulers of the Killing ground always found a reason to pick on someone, be it because of physical appearance, religion or beliefs. He also mentions that someone from the playground, probably the principal says It prepares them for Life, and that in his opinion this had already been the worst place in his life. I imagine that the incident takes place in a poor community, because the children do not look as if they were mimed and a rich parent probably wouldnt trust the principal when she said that it prepares them for life. He also comments on the walls of the playground and says that it was broken and dusty, as if no one was taking care of the playground. The fact that he gives the impression that all the kids hated the Killing Ground also suggests that it takes place on a poor community because if it was on a rich one the kids would probably complain to their parents and their parents would get in contact with the principal or staff responsible. Language and structure add a great deal to the understanding of the poem. On the first section he repeats the first two lines, probably to call the readers attention to it. He also soon after saying how small the boy was says how large and wide the playground was, maybe suggesting that the boy felt impotent regarding the enormous playground around him. On the second section the poet also repeats the first two lines, also to emphasize it but maybe also to show a sense of how these facts were appearing back in the boys mind and as if he was thinking about it at the moment. He also wrote the name give by the children to the playground with capital letters The Killing Ground, to emphasize in the word Killing, to show how much the children were scared and hated the playground. This name is very ironical because Killing is the opposite of Play, and that the kids were having a horrible time whilst their parents thought that they were playing and having fun. On the third section he writes got a mother and a father, theyre one thousand years away, meaning that the kids can only ask for help for their parents, but they are far away from them and there is no way of reaching them. He then writes the rulers on The Killing Ground are coming out to play, to give the impression of how these rulers, probably older or stronger kids, were feared by the other kids, and that when they appeared they hoped they would pick someone else to play with. It is interesting the irony in the word play used in the sense of bullying, as if the rulers were using the younger kids as a doll or another object and doing whatever they wanted with it. The fourth section is my favorite part of the poem, due to its extreme irony. The boy is saying that the rulers chose anyone to pick on, and that they do it for any reason at all, and the way the poet writes this it looks as a nursery rhyme, which usually are of happy and fun things, which isnt this case. On the fifth section the poet is showing the cruelty of the rulers, by saying that they sometimes get a beetle and torture them, by tearing off all its legs one by one, leaving the beetle with its back on the floor, but a beetle cant beg for mercy as the other kids, so it isnt half as fun. This is making a comparison of how the kids went through the same situation as the beetle, and that this was more fun for the rulers, because unlike beetles, children can beg for mercy. On the last section the poet describes the sound of the principal or teacher of the playground as having and iceberg sound, meaning that the person was very cold and didnt have any feelings towards the kids which were being bullied. He ends the poem by saying that the principal says that the playground prepares them for live, whilst the boy thinks that this preparation has been the worst thing of his life. The poet shows how a child views a playground, and how scared they were of the older kids. This is a very typical example, and happens in most playgrounds and kindergartens around the world. Maybe not as cruel as the poets example, but quite bad. It also shows how the childs mind is taken over by their imagination and fear. It is also a critic to how the system of playgrounds work, and of how the parents send them there thinking that they are playing and having a good time whilst what is happening is exactly the opposite.

Free Essays on El Greco (Domenikos Theotokopoulos)

El Greco Spanish, 1541 Domenikos Theotokopoulos was born – He died in 1614 Domenikos Theotokopoulos, called El Greco, which means The Greek was born in 1541 in Candia , now Irklion, the capital of Crete. In 1566 he was recorded in Candia as a master painter. He was an erudite man, whose taste for classical and contemporaneous literature seems to have developed in his youth. El Greco probably went to Italy to master the modern Western Renaissance style. He is documented in August 1568 in Venice, where he remained until the autumn of 1570, when he went to Rome. The rich colors and the free handling of paint of Venetian painters profoundly influenced him, but there is no evidence to support the tradition that he was apprenticed to Titian. In Rome, El Greco resided at least for a while at the Farnese Palace, where he became acquainted with the Farnese librarian, Fulvio Orsini, whose belief in the compatibility of art and scholarship seems to have profoundly influenced him. In 1572, El Greco was admitted to the Academy of Saint Luke as a miniature painter. Unable to obtain major public commissions in Rome, El Greco signed a contract in 1576 in Rome for altarpieces for the important church of Santa Domingo el Antiguo, Toledo. By July 1577 he had arrived in Toledo, and by September 1579 he had completed nine paintings for Santo Domingo. These works helped to establish his reputation as the most gifted artist in Toledo. The dissatisfaction of Philip II with the Martyrdom of Saint Maurice, which El Greco completed in 1582 for the church of El Escorial, effectively ended any hopes of royal patronage that he may have had. It is perhaps for this reason that he decided to remain in Toledo, where he had come in contact with a group of learned churchmen who appreciated his work. By 1585, El Greco appears to have established a corporate workshop capable of producing altar frames and statues as well as paintings. The decade 1597 to 1607 was ... Free Essays on El Greco (Domenikos Theotokopoulos) Free Essays on El Greco (Domenikos Theotokopoulos) El Greco Spanish, 1541 Domenikos Theotokopoulos was born – He died in 1614 Domenikos Theotokopoulos, called El Greco, which means The Greek was born in 1541 in Candia , now Irklion, the capital of Crete. In 1566 he was recorded in Candia as a master painter. He was an erudite man, whose taste for classical and contemporaneous literature seems to have developed in his youth. El Greco probably went to Italy to master the modern Western Renaissance style. He is documented in August 1568 in Venice, where he remained until the autumn of 1570, when he went to Rome. The rich colors and the free handling of paint of Venetian painters profoundly influenced him, but there is no evidence to support the tradition that he was apprenticed to Titian. In Rome, El Greco resided at least for a while at the Farnese Palace, where he became acquainted with the Farnese librarian, Fulvio Orsini, whose belief in the compatibility of art and scholarship seems to have profoundly influenced him. In 1572, El Greco was admitted to the Academy of Saint Luke as a miniature painter. Unable to obtain major public commissions in Rome, El Greco signed a contract in 1576 in Rome for altarpieces for the important church of Santa Domingo el Antiguo, Toledo. By July 1577 he had arrived in Toledo, and by September 1579 he had completed nine paintings for Santo Domingo. These works helped to establish his reputation as the most gifted artist in Toledo. The dissatisfaction of Philip II with the Martyrdom of Saint Maurice, which El Greco completed in 1582 for the church of El Escorial, effectively ended any hopes of royal patronage that he may have had. It is perhaps for this reason that he decided to remain in Toledo, where he had come in contact with a group of learned churchmen who appreciated his work. By 1585, El Greco appears to have established a corporate workshop capable of producing altar frames and statues as well as paintings. The decade 1597 to 1607 was ...

Land Law Essay Example | Topics and Well Written Essays - 1500 words

Land Law - Essay Example Hay hence making the deals legitimate. Rose has a claim on the farm even if she is not in the legal documents as part of the farm. According to the Law of property Act 1925, land ownership revolved around equity and Common law1. Additionally, land had a trustee when there was more than one owner. For instance, this case Major Thorn is the trustee and representing Rose2. 2) When Mr. Hay was buying the property, he bought it with all the rights hence making all other things that are in the farm belong to Mr. Hay. Major Thorn did not disclose to Mr. Hay about the previous lease agreement that he made with Mr. Wood in 2007 when he was selling the farm to Mr. Hay. This make Mr. Hay not bound to the agreement between Mr. Wood and Major Thorn. It is up to Major Thorn to sort out Mr. Wood because he did not disclose this information to Mr. Hay during the transaction. However, Mr. Wood can opt to buy the cottage because the lease agreement states that in case Major Thorn decides to sell the f arm, Mr. Wood can buy the cottage. The other reason as to why Mr. Hay is not legally bound by Mr. Woods rights is because Major Thorn had the registration title to the farm hence making it his without this other agreements coming to light hence it is only prudent that Major Thorn deals with Mr. wood without involving Mr. Hay in the resolution3. 3) In the case of Mr. Plant, Mr. Hay has every right to stop him from passing through his farm even if they have been using the shortcut for a long time. The reason for this is that everything in that particular land including paths, waterways, gardens, trees, mines and passages belong to Mr. Hay. These items pass automatically to the new farm owner after sale of the property. For instance, the path that Mr. Plant has been using as a shortcut to a local pub belongs to Mr. Hay and he cannot use it if Mr. Hay does not allow it. It is needless to itemize these things in the contract because they pass automatically after sale hence the use of the field by Mr. Plant will not bind Mr. Hay. 4) In the case of the ornamental bronze statue, Mr. Hay had every right to be furious. This is because when he was signing the contract with Major Thorn the statue was on the farm and Major Thorn did not disclose to Mr. Hay that the statue was not part of the agreement only to come and remove it after signing of the contracts. However, the statue was a fixture hence part of the land because the way Major Thorn installed it, the intention was never to remove it from that land. He used heavy lifting equipment in order to put the statue in position in fact causing a scene in the village. These are some of the strong signs that represent a fixture hence Major Thorn was not supposed to remove it after sale of the firm. One of the most famous cases in this particular area is Australian Provincial Assurance v. Coroneo. The main concern of the court was theater equipment for instance projectors, chairs and generator that were in the theatre. The co urt ruled that if any item was in the theatre and did not stand on its own weight then that particular object was a chattel and the burden of proof lied on the does not agree. However, if the object had an attachment to the property using any form of support then it was a fixture. Similarly, the burden of proof remains on the person who does not agree. In the case of Major Thorn, the elephant statue was part of the firm because it had attachment

HOW EASY IT IS TO BE FAMOUS TODAY Essay Example | Topics and Well Written Essays - 1250 words

HOW EASY IT IS TO BE FAMOUS TODAY - Essay Example At some point in their lives everyone thinks that fame is the ultimate prize. This desire for fame has given rise to countless TV shows. So, whether it’s America’s Next Top Model or American Idol, these reality shows will always have an audience because they cater to a very deep desire of the audiences. Everyone sees a little bit of themselves in the participants. Being famous does not seem that bad. Fame is the most powerful resource of the American society. After all, it was Oprah’s fame that landed her in Forbes list of most powerful women in the world. People, who command fame, become the privileged upper class of our society. Fame is greater than sex appeal; it is above charm and charisma. Fame brings with it wealth, appreciation and credibility (Jessup n.d.). Famous people are poised, outgoing and fun. Everyone knows them and wants to be like them. The Hilton sisters and the Kardashian Clan are celebrities. They are simply famous for being famous and thanks to them we know that it doesn’t take talent, beauty or even intelligence to become famous. To become well-known, you just need to be born in a wealthy family that readily indulges your every whim. Of course, Bill Gates and Warren Buffet worked hard to get rich, they are no doubt famous but Paris Hilton, Kim Kardashian and Nicole Richie didn’t work at all for any of their wealth. This method of achieving fame is obviously not for the person who knows the real value of a dollar (Kelley, 2010). Our next lesson in fame is also brought to you by the same people. This may be a shocker, but it seems that sleeping with famous people and making sex tapes is the perfect way to achieve fame and glory in today’s content crazy world. Paris Hilton and Kim Kardashian have benefitted extremely well from this phenomenon. Soon after their tapes hit the market, these ladies were glossing up the covers of magazines and getting million dollar endorsement deals and Kim is even