Lab Report Acid Base Titration Essay Example

Lab Report Acid Base Titration Paper This allows for quantitative analysis of the concentration of an unknown acid or base solution. It makes use of the naturalization reaction that occurs between acids and bases and the knowledge of how acids and bases will react if their formulas are known. Acid-base titration can also be used to find percent purity of chemicals. When a weak acid reacts with a weak base, the equivalence point solution will be basic if the base is stronger and acidic if the acid is stronger. If both are of equal strength, then the equivalence pH will be neutral. However, weak acids are not often titrated against weak bases because he color change shown with the indicator is often quick, and therefore very difficult for the observer to see the change of color. The point at which the indicator changes color is called the end point. A suitable indicator should be chosen, preferably one that will experience a change in color (an end point) close to the equivalence point of the reaction. First, the burette should be rinsed with the standard solution, the pipette with the unknown solution, and the conical flask with distilled water. Secondly, a known volume of the unknown concentration solution should be taken with the pipette and placed into the Monica flask, along with a small amount of the indicator chosen. The known solution should then be allowed out of the burette, into the conical flask. At this stage we want a rough estimate of the amount of this solution it took to neutralize the unknown solution. The solution should be let out of the burette until the indicator changes color and the value on the burette should be recorded. We will write a custom essay sample on Lab Report Acid Base Titration specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Lab Report Acid Base Titration specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Lab Report Acid Base Titration specifically for you FOR ONLY $16.38 $13.9/page Hire Writer This is the first (or rough) titer and should be discussed from any calculations. At least three more titration should be performed, this time more accurately, taking into account roughly where the end point will occur. The initial ND final readings on the burette (prior to starting the titration and at the end point, respectively) should be recorded. Subtracting the initial volume from the final volume will yield the amount of iterant used to reach the endpoint. The end point is reached when the indicator just changes color permanently.

The Differences Between Manga And Anime

The Differences Between Manga And Anime Manga And Anime: Two Different But So Close Kinds of Japanese Entertainment If you go deep into the history of anime, you will reach its Japanese origin. Anime is an abbreviation from English animation, even though many used to think this word has French roots. In 1917, in the country of the rising sun, the world saw the first cartoons that were more traditional for the Japanese audience than for the American. Until the seventies, Japanese cartoons were called manga-eiga, pointing out to the close relationship between anime and manga. In todays development, the anime has several types: TV series, films, OVA (anime exclusively for video), ONA (anime for the Internet), and TV-Specials (bonus series, often not connected with the main storyline). CONCLUSIONS Anime appeared in the early twentieth century, while the manga has been known since the Middle Ages. It is important to remember, anime are cartoons, and manga is a comic book. The subjects of manga are more profound and interesting, while the anime stories are somewhat simplified. Manga is often black and white, whereas anime is in color. Only a few people work over the creation of manga; the creation of anime requires a large staff, cash, and labor costs. Even though manga and anime have a completely different purpose, they both are exclusive examples of exquisite Japanese culture due to underlining the importance of different style. The next time you are going to buy manga or watch an anime series, remember the sophisticated story that lies behind its creation and people, who tried hard to bring the entertainment to you.

Marketing Essay Example | Topics and Well Written Essays - 500 words - 66

Marketing - Essay Example These strategies include the reduction of the number of materials for packing used, the use of packages that are environmentally friendly, use of reusable containers and giving support to the services that involve the collection and recycling of packages (Murphy & Donald, pp 203 & 204). The improvement of the performance system can be affected by the reduction of packing. For instance, the carriers’ tariffs and carriers’ classifications affect the nature of packaging and the packing techniques that should be used. Moreover, the specifications of carrier for defensive packaging cut the probability of destruction to products during carriage; this decreases the loss amount and the damage allegations that do not favor the carrier (Murphy & Donald, pp 206 & 207). Among the ten principles of material handling, the most surprising ones are the ergonomic principle and the work principle. The ergonomic principle aims at adapting work to suit the workers ability. This principle is surprising because of the fact that it tries to encompass the workers mental tasks something that appears almost impossible. The other principle is surprising because the minimization of material handling work without sacrificing productivity is not an easy task and is tricky (Murphy & Donald, pp213). The fragmented logistics and unified logistic of the organizational structure are comparable because, in both, the multiple logistics activities can be put in the same department despite their differences. These two logistic structures, however, differ because, in fragmented logistics structure, the activities management is in multiple departments while in the unified logistic structure, all the activities are managed in one department. Moreover, the classification of unified logistics structure is based on the quantity and the action given to the department. The classification of fragmented logistic structure is, however, based on quantity and the activity given to

Personal statement Example | Topics and Well Written Essays - 250 words - 22

Personal Statement Example I am registered for an accounting course and I plan to continue with the area of specialization. My desire for a high-level competence and my long-term passion for accounting motivate my application for the transfer. My uncle, who was a chief accounting officer, inspired my dreams to pursue accounting because of his financial and social success that I desired to have. The stories that he told us about the profession and its associated social status captured my interest into the subject. I have therefore had the passion for accounting and this has contributed to my desire for the transfer, into better qualifications. Completing a four-year program will also offer me a better opportunity for advancing my studies in the field. Reputation that your institution has, its qualified academic staff, its resources for research, and its favorable environment for studies are my main reasons for applying for a transfer to the University. These will help me to complete the program within the stipulated period. My application for a transfer to your institution is based on both intrinsic and extrinsic motivational factors. This guarantees my success in the program, if granted the opportunity, and I look forward to your kind

Article Summary for MacroEconomics 4 Essay Example | Topics and Well Written Essays - 750 words

Article Summary for MacroEconomics 4 - Essay Example The money provided by the package was almost over and the state’s police, firefighters and teachers were going to lose their jobs. President Obama is once again going to appear before the Congress for another $300 million to create jobs and help the economy. Three rounds of stimulus aid have already been provided by president Obama. The round one was openly and fully criticized by the republicans, in round one $200 billion were used to support tax cuts, $300 billion were used or the support of those who did not have jobs and $300 billion were used for direct investment in different projects. The spending on various projects contributed the most in creating jobs. The round two mainly contributed to the bailout of the auto industry of United States and helped a great deal in creating jobs. The money spend on bailout of auto industry was recovered and returned by the auto manufacturers. The step of helping the auto industry was the most successful one as this helped the auto manu facturers in solving their financial issues, this step alone helped in saving more than 1.5 million jobs. Before the bailout program, the auto manufacturers were in very bad shape and were on the verge of being forced out of the market. The bailout of auto manufacturers has a long term positive impact, these firms are currently doing very well and even employing more employees and posting higher profits. The use of stimulus money in other arenas had very little impact and an overall view suggests that stimulus money invested in other sectors was wasted. The round three of stimulus help was quite effective as huge amount of jobs were created because people had money to spend and due to increase in demand for goods and services there was increase in demand for more workers. More than $858 billion was spent as a part of the stimulus package; money was spent on unemployment assistance provided to those who were out of jobs. During summer, the economic growth and employment growth once a gain stopped and jobs created in the private sector decreased. It is even estimated that president Obama will continue providing unemployment assistance to employees. In my opinion, the president could have dealt with the stimulus package in different ways. The stimulus money was used in certain areas that did not turned out to be quite productive. For example: the tax subsidy, the unemployment benefit was of no great help in creating jobs. Whereas certain developments made with the stimulus money were quite helpful in decreasing unemployment in US. For example: investment in projects and bailout of the auto industry. Instead of giving money directly to the unemployed individuals and providing them unemployment benefits, stimulus money could have used to finance and bailout other sectors of the economy. This would have helped businesses with their liquidity issues and they would have saved themselves from being bankrupt. If businesses would not have closed and money would have been used to help these businesses, employment would have increased. Thus the unemployment assistance would not have been important and neither the tax cuts. The businesses that would have been saved with the help of stimulus money would have made money and they would have paid taxes. Taxes are revenue for the government and are necessary for the development of the economy. The taxes

The Reasons And Solutions Of Developing Gap

The Reasons And Solutions Of Developing Gap Now with the open world market, many people increase confidence that the developing gap between developing and developed countries. However the opposite reality shows that after World War Two, this developing gap has been increasingly widened. According to a British expert, if developing countries income remains at the level of 5% of developed countries, then the absolute gap in income needs 40 years to be eliminated. (Robert Hunter Wade, 2004) So what are the reasons for the widening developing gap? Developed countries selfishly believe that developing countries should be responsible for such consequence by themselves, and they also find many evidences to blame developing countries, but of course they are just tricks rather than truths. This paper will analyze these tricks one by one and then find real reasons for the developing gap. The first one is about international trade. China is often blamed as using productions with the lowest costs and prices to trade in international market. Yes China does, and many developing countries also do as China does, but before we blame them without consideration, we should think about the reason why most developing countries go such a way, or say whether there is a rule inside the phenomena. Theories from Macroeconomy prove that economy development needs to take comparative advantages. So to developing countries, low-cost industries, such as manufactory, should be developed at first. Actually those successful countries or areas which got high speed of increase in economy, such as Japan, Korea, Singapore, Hong Kong, and Taiwan, were all developing manufactory at first. But why developing countries cannot get such success at current time? The reason is simple: rules are more controlled by developed countries. The most obvious trap is the increasing pricing gap between low and hi gh levels of products. Among so many victims of the pricing gap, India is a typical one. From 1960s to 1990s, main types of export goods of India were handwork production, clothing, simple machinery, leather, cotton yarn, tea-leaf, while the main types of import goods were petrochemicals and high-technological machinery. (Global Forum Official Website, 2005) Thus India suffered adverse balance trade deficit for 30 years, and even now India still doesnt have a full industrial system. China also has suffered the negative influence from the developing method of exporting simple productions although rarely has suffered adverse balance trade deficit. So we can see that actually developing countries are victims of this bad globe economic institution made by developed countries. However now developed countries blame the victims first and they believe that developing countries deserve to suffer poverty because they use this method to develop their international trade. What a ridiculous char ge! The second reason of the developing gap, of course is come from developed countries, is about the global warming. With the growth of this issue, who should be responsible for this issue also becomes an issue. Depending on their perfect relation or say international influence ability and rich sources on medias, developed countries owe the cause of global issue to developing countries, especially China and India, and believe that the environmental problems influencing development in developing countries should be responded by developing countries themselves. First some western experts write some articles to blame developing countries. In the article titled Population Growth and Global Warming, the author John Bongaarts gave such a theory to owe this to developing countries: because of the increase in population size and income per capita in developing countries, their energy consumption would exceed developed countries, and they would also increase the deforestation, which would be the new main reason of global warming. At the end of this article, the author owed responsibility to those MDCs, of course implying China and India. So what about the truth? According to report from World Bank, the carbon emission per person of China was 4.1 ton in 2009, which is one-fifth of U.S, and one-half on Britains (Economy Reference, 2009). Western experts blame that its no use to compare by the standard of carbon emission per person because Chinas total emission is the highest in the world, but actually they are tricking people again. Economy serves for everyone, and development includes the improvement of peoples lives, so carbon emission per person matters not only the total emission but also the healthy development, especially peoples lives. Now even peoples daily energy consumption in developed countries is much higher than in developing countries, even drying cloths needs machine, no need to say energy consumption for industries. So following developed countries suggestio n, the most of world population needs to bear low life level to let very few people in developed countries to enjoy the high energy consumption, in the long run. How virulent goal developed countries want to achieve can be seen. Developed countries also owe developing gap to the problems inside developing countries inside management, such as corruption and low efficiency. Yes, such problems do matters the developing gap the most. But developed countries play the same trick, called a thief calls Stop thief' in China, again at this point: even these actually should be responded by developed countries. According to experts Daron Acemoglu, Simon Johnson, and James A. Robinsons research, three truths responsible for the gap between former colonies and colonizers, and even different colonies, should be noticed: first, there are different types of institutions for different colonies, one is called Neo-Europes, which means the settlers tried to replicate European institutions on there, and the most successful former colony, United Stated appeared, now this former biggest benefited becomes the biggest ruler of the world, and another type of colony institution is called extractives states, of which main purpose was ju st to transfer as much of the resources of the colony to the colonizer, and thus colonies under this institution were of course victims, and those LDCs in current time all suffered such a institution before; second, the reason for such difference between colonies is that some colonies were comfortable for settlers to stay, such as U.S., and some were not, such as those LDCs; third, the colonial state and institutions persisted even after independence, so managing problems in some former colonies are still with the current LDCs now. (Daron Acemoglu, Simon Johnson, and James A. Robinson, 2001) So how cheeky it is that some people say that developing countries should be responsible for their poverty by themselves because of their own inside problems. One thing need to be noticed is that while there are some justice experts in developed countries now are discovering these cruel truths, some Chinese now are helping developed countries to spread their ridicules explains about such problems. China also suffered invasion from outside and the negative influences from such invasion, so Chinese can never accept being cheated again by this kind of explains. If such dangerous trend develops, China will really pay new prices because this real inside problem, so just blaming developed countries becomes not useless, and the first solution is to eliminate such betrayers. Then we should summarize more experience about global competition, for example how to negotiate about prices of minerals. But we believe that things will turn to be better in the future.

The Common Problem of Absenteeism in the Field of Education Essay

The Common Problem of Absenteeism in the Field of Education Absenteeism is a common problem encountered by teachers and others who work in the field of education. There are many reasons why some children fall into a pattern of repeated absence from school. In a number of cases, willful absence can be traced to an alienation from schooling due to poor achievement, family circumstances or behavioral causes. In some cases, parents or children simply defy the requirement to participate. This area is one in which the need for partnership between school and family is greatest. While many schools provide successful alternative programs or absenteeism intervention strategies, there will be cases where, despite the best efforts of schools and parents, the children stay away. It is clear that any unauthorized absence is of concern because of the valuable educational time which is lost and because the absence of some children is associated with inappropriate behavior in the community. Different types of absenteeism will be discussed during this essay bu t the main focus will be directed at truancy in which the causes and remedies will be evaluated. The different types of absenteeism is truancy, exclusion, school closure, school phobia or other absences due to illness or bad behavior (teachers sending pupils out of class due to poor behavior). Although children who are sent outside the class are not entirely absent from the school, this can be identified as absence as they are not participating in class. It seems that none of the various Education Acts defines truancy and nor is this lack supplied the case laws. Nor indeed have the various researchers agreed a definition. Must every child who is absent from school for whatever be cla... ...that all of them are valid. Remedies that involve the parents seem to be extremely effective as the parent?s awareness can surely play a big part in combating the problem as usually a lot of parents are unaware of their children?s school life. It is also obvious that if the school improves the atmosphere and teaching methods than the pupils are more likely to want to go to school. A good teacher ? pupil relationship is also important and can ensure better school attendance Truancy is the first sign of trouble and the first indicator that a young person is giving up and losing his or her way. When pupils start skipping school than they are telling their parent?s, school officials and the community at large that they are in trouble and need help if they are to move forward in life. Bibliography: Tyerman, Maurice J. Truancy. U of Chicago Press, 1984.

Positive discrimination Essay

â€Å"New Right Sociologists† would argue that this would be a disadvantage to the government as it would lead to an eventual reduction in the nation’s talent pool. However, it is important to note that the methodology used in the production of â€Å"The Bell Curve† is both dubious and highly doubtful. This is most vividly illustrated by the article Inequality by Design, written by the Sociology Department of UC Berkeley, which claims that the statistics used by Murray and Herrstein were flawed due to omissions and technical errors. On the other hand, â€Å"New Right Sociologists† also argue that ethic groups are disadvantaged because they refuse to integrate into their host society. A refusal to integrate may include a refusal to take on the norms and values of the host culture; or to learn the language. This prevents them from seeking opportunities and hence leaving them at a disadvantage. â€Å"New Right Sociologists† would henceforth argue that the state would have no responsibility whatsoever for self-made choices, and therefore that Positive Discrimination would be pointless and a waste of both time and resources. Neo-Marxists and Social Democratic/Left Wing sociologists would argue that because Ethnic Minorities suffer from ethnic discrimination as well as poorer life chances they require and need Positive Discrimination in order to ensure that they are able to reach the best of their potential. Neo-Marxist Sociologists would refer to the argument, as advocated by Stuart Hall of black people being scapegoat for economic and social problems in times of peril. This shows that people from ethnic minorities are blamed for causing problems, and hence are put at a disadvantage with other groups. This effect is then emphasized through the schema model, in which press coverage and blame of ethnic minorities leads to prejudice, prejudgment and in turn a disadvantage for minorities in regards to a wide range of areas, including life chances as represented through education, health and work. The prejudice caused by scapegoating leads to ethnic minorities being denied jobs in the primary job market, having to get by through the routine, ill paid and unskilled jobs offered through the Secondary Job Market. This in turn impacts greatly on all other aspects of their life, including where they live and the lifestyle they lead. Because ethnic minorities are tied to the secondary job market with lower wages, or languishing in unemployment, they end up residing in inner cities and other areas which are likely to be affected by what is described as the â€Å"Inverse Care Law† as coined by Hart, in which those who need the most access to services receive the least. Statistics from the Office of National Statistics show that ethnic minorities tend to have the worst self-reported health, live in overcrowded housing and smoke the most. This shows the fact that Ethnic Minorities, due to the lack of job opportunities, suffer from lower than average health and lifestyles. This, coupled with the fact that ethnic minority households are three times more likely to live in poor neighborhoods (Commission on Racial Equality, 2003) tells us that ethnic minorities do indeed suffer from lower life chances due to poor health, poorer education due to failing inner city schools and finally a cumulatively lower chance of success in life that other groups due to clear disadvantages in terms of health, education and job prospects. This clearly shows that Positive Discrimination in favor of disadvantaged groups is desirable as it allows for the disadvantages caused by ethnic discrimination and its knock-on effects to be limited if not redressed, hence increasing the nation’s pool of talent and preventing those who are capable from languishing behind due to disadvantageous conditions. Henceforth it can be said that Positive Discrimination in favor of disadvantaged ethnic minorities is both beneficial and disadvantageous depending on which perspective it is viewed from. However, it could be concluded with a degree of certainty that Positive Discrimination in favor of ethnic minorities is both a good government policy and advantageous to the country in question- as it allows ethnic minorities put at a disadvantage to compete on what amounts to nearer grounds to those from other ethnic groups that may enjoy an advantage, whether it be through wealth, power or better overall life chances. This allows for the meritocratic principles of Functionalism to occur on fair and even grounds- facilitating competition for roles and jobs between everyone on fair and even terms, hence allowing the best and brightest, regardless of ethnicity, to reach the very top and bring mutual benefits for society as a whole.

Attitude Analysis and the book The Fantabulous Fens

Attitude Analysis and the book The Fantabulous Fens Attitude analysis in a piece of writing helps in defining the intention of an author towards specific characters and themes in the text. The book â€Å"The Fantabulous Fens† will be used in this paper to analyze the way attitude is presented by the author. Authors always use diction to portray a given attitude towards someone or something.Advertising We will write a custom essay sample on Attitude Analysis and the book â€Å"The Fantabulous Fens† specifically for you for only $16.05 $11/page Learn More The following quote was taken from this book. The decision of choosing specific words or phrases over the others is always meant to create some form of emphasis on what is being described. The quote below was taken from the book mentioned above. â€Å"Daku and Bhoku were experts at doing nothing, and they were doing nothing at the time. They were neither sleeping nor eating nor working nor playing nor watching television: they were simply doing nothing, like they often did.† (Sen 34). It is important to understand how attitude is created from the above statement. The above quote reflects some form of contempt, especially given the manner in which the author emphasizes on the word nothing. The author creates this attitude by using the word nothing to describe their behavior. The two are portrayed as lazy individuals who are not able to do anything constructive. They prefer idle sitting, neither playing nor engaging in any active work. This contempt that the author has towards the two individuals is demonstrated in the manner at which their character is defined. The author gives the perception that Daku and Bhoku would almost sit lifelessly in their house waiting for an opportunity to cause mayhem to active members of the society. This attitude serves to give an overall impression of what the author seeks to achieve in the entire text. It would be necessary to understand why the author is using this particular attitude . The author is trying to discourage laziness in the society, and the two are used to demonstrate the effect of idleness among active members of the society.Advertising Looking for essay on literature languages? Let's see if we can help you! Get your first paper with 15% OFF Learn More Daku and Bhoku have been used to achieve the goal of the author through their unfortunate eventualities because of being lazy, cunning, and criminal minded. The quote below is a further demonstration of the attitude of the author towards people who shun hard work. â€Å"The ‘little bloke’ had spiky hair. He was the first street urchin in the world to have spiky hair†¦ You good-for-nothing†¦ You son of a bum† (Sen 34). In this quote, the author uses some form of irony to depict the attitude he has towards laziness in the society. The irony is presented in the fact that Daku, an individual who has been described as being very lazy, rebukes the stree t urchin for his laziness and the fact that he contributes nothing to the society. Even this lazy man appreciates that laziness is a vice that is unacceptable in the society. The way the author uses diction in this sentence helps in demonstrating his feelings towards the street children. The author uses the words little and bloke to describe the street boy. It would be important to understand how attitude of the author is presented in this second quote. Although the word bloke has a general meaning of a guy, it has a negative connotation and it is mostly used when one is referring to something one has negative attitude towards. The author finds no difference between the street children and the two lazy individuals named Daku and Bhoku. These two groups represent a lazy crop of people who are living by begging or stealing from other hard working members of the society. Instead of using the term ‘street boy’ or ‘street child’, the author uses the word ‘ street urchin’ to describe these street children. This is a sign of hatred that the author has towards this group of people. The word urchin gives the connotation that this is a group of individuals who causes some form of anarchy within the society. Daku is quick to point out that the street urchin is good for nothing, not realizing that their value to the society is the same.Advertising We will write a custom essay sample on Attitude Analysis and the book â€Å"The Fantabulous Fens† specifically for you for only $16.05 $11/page Learn More Daku further refers to the urchin as son of a bum. This is to emphasize on the fact that this street urchin, and his entire family, is of little or no value to the society. Even in the eyes of a lazy man, laziness if a vice that cannot be tolerated if the society is to achieve the desired development.. It would be necessary to analyze why the author decides to portray this attitude toward the lazy individua ls. A bum is a person who lives on begging, and is generally considered a burden to other members of the society. Referring to the boy as a son of a bum is an indication that both the street urchin and his parents have been leading a parasitic life in the society for a long time. They have been of no value to the society as they wait to attack others and rob them of their hard-earned properties. This hatred is used to discourage this nature of parasitic lifestyle in the society. The author is trying to demonstrate that it is wrong to lazy about, only depending on unscrupulous activities to earn a living. This is demonstrated throughout the text where this lazy group of people is poised as villains to other morally upright members of the society. Through this, the author seeks to encourage every member of the society to shun laziness. Sen, Gautam. The Fantabulous Fens. Sydney: ireadiwrite Publishing, 2010. Print.

Jazz in the early 20th Century essays

Jazz in the early 20th Century essays Jazz is defined as a genre of popular music that official originated in New Orleans around 1900. Apparently, the word jazz originated in New Orleans jass, which was slang for sexual intercourse, but it gradually came to be applied to anything exciting. Other commentators have traced the use of the word in a musical context even further back, the first instance of writing dating to 1909. Jazz music is commonly characterized by intricate rhythms and syncopation, improvisation, call and response, and swing. First sweeping through the Western World in the 1920s and 30s, jazz has subsequently become entrenched as one of the characterizing movements in 20th Century culture. A revealing quote from Paul Whitman, the undisputed King of Jazz, shows the conditions in which jazz arrived in America: Jazz came to America 300 years ago in chains. That is, from West Africa via the black slaves who were imported to the states of Southern America to work for white masters in plantations. The slaves built up a rich hoard of work songs and ballads, lamenting their circumstances and conditions, and in time these developed into distinct genres, spawning the blues and ultimately jazz itself. However, it was never the sole property of the black community. Other influences including the minstrel shows put on by white performers as well as ragtime and Dixieland influenced the formation of jazz. Briefly, jazz emerged as a thriving form of popular music after it caught on among the musicians who were paid to entertain clients in the brothels of New Orleans at the turn of the century. Among the most important pioneers were cornet player Buddy Bolden and Jelly Roll Morton, who often claimed he had invented jazz. Subsequently the form developed under the influence of ragtime and the blued and a newfound home in Chicago. Jazz entered a golden age in the 1920s, when up-and-coming stars of ...

Tesco expanding in Dubai Essay Example | Topics and Well Written Essays - 2750 words

Tesco expanding in Dubai - Essay Example It mainly desired to present value-added products such as consumer electronics, clothes, consumer financial services, internet services, gas, consumer telecoms and many other useful articles. Other than this, Tesco Plc also expanded in varied other segments such as retailing of books, furniture, petrol and software; financial services, DVD rental, music downloads and telecoms and internet services. Not only this, Tesco Plc also operates in many other segments such as banking, fuels, tech-support, film making, technika and Tesco tyres. Therefore, due to the presence of varied types of essential articles, the retailer of Tesco Plc became successful to position itself as one of the renowned brand in the entire globe among many other rival retailers. This helped the organization of Tesco Plc to fulfil its vision to offer qualitative products at lowest price so as to maintain its portfolio in this segment effectively (Tesco, 2013). However, in order to enhance its brand value and dominanc e within the rival players of the retailing segment, Tesco Plc decided to enter and expand into the competitive markets of Dubai. This might proved effective for the organization of Tesco Plc to reduce its threats and enhance its strengths. Products of Tesco Plc Discussion Description of the organisational context of Tesco Plc Tesco Plc is a multinational retailer of grocery and general merchandise of United Kingdom, founded by Jack Cohen. Being headquartered in Cheshunt of United Kingdom, it operates successfully in many regions and markets in the entire globe. It includes stores in 15 countries such as Asia, Europe, North America, Malaysia, Republic of Ireland and many others. So, it is spotted as one of the leading British retailer in terms of total sales and brand image as compared to many other rival players. Along with this it also comprises a market share of 14.6 % and customer base of more than 1 million in both domestic as well as international markets. As a result, the mar ket value and distinctiveness of Tesco Plc is enhancing at a rapid pace as compared to other retailers such as Wal-Mart and Carrefour. Thus, it helped in enhancement of the revenues by ?64.826 billion by the year 2013 (Tesco, 2013). Apart from this, being a public limited organization, the net income and total assets enhanced by ?124.0 million and ?50.129 billion by 2013. And the total turnover of Tesco Plc in domestic or UK market is ?3.5 billion and in global market is ?8.6 billion. Along with this, it includes employees of more than 270,000 in domestic market and 150,000 staffs in global markets. This acted as one of the vital strengths of the organization of Tesco Plc that enhanced its market image and position in international perspectives. Therefore, in order to present the advantage of its value-added products, it decided to enter into Dubai (Tesco, 2013). Although, the retail market of Dubai is extremely

Nanowire Battery Research Paper Example | Topics and Well Written Essays - 1250 words

Nanowire Battery - Research Paper Example The basic electrodes in a lithium ion battery are modified by nanotechnology to improve the performance. This article intends to discuss the objectives of the nanowire battery technology. The basic features and the technology behind these batteries are discussed along with their advantages. Finally, the challenges and applications of Nano wire batteries are presented. Introduction The speed of operation of the present generation computers, other electronic gadgets and even electric cars are increasing at an exponential rate. This presents a demand for equivalent high capacity batteries to power them with high charging and discharging rate. The batteries that power the high speed devices like laptops, mobile phones, video games and even electric cars lack these characteristics due to chemical constraints. The traditional Lithium-ion batteries transfer lithium ions from carbon anode to a metal oxide cathode. As the number of lithium ion held by one carbon ion is only one, the charge de nsity in these batteries is low. On the other hand, the Silicon anode has the capability to hold 4.4 lithium ions in one silicon atom. Scientists at the Stanford university (Chan. C.K. , Zhang. X. F. & Cui Y. , 2008) have explored the use of Silicon and Germanium nanowires for improved battery energy. This article intends to explore the technological insights of this Nano Wire battery technology. Objectives The existing rechargeable batteries are limited in electrical charge density as well as lifetime. The popular Lithium ion batteries used in portable electronic gadgets and cars have lithiated graphite as anode, LiPF6 as the electrolyte and the LiCoO2 as cathode. Their major disadvantages are high production cost and lack of resources like Co for mass production. The new Nano wire battery technology, aims at eliminating the drawbacks in this Lithium ion batteries. The major objectives of this technology are to use cathodes and anodes with materials of higher energy density and to optimize the design of the batteries for higher performance. Features and Advantages The anodes used in nanowire battery were made of Silicon and Germanium nanowires (chan et al. , 2008 ). Since Silicon has low discharge potential and charge capacity of 4200 mAh/g, it is more preferred than Germanium which has a theoretical charge capacity of 1600 mAh/g. The following Figure. 1. shows the nanowires of Silicon grown on the electrodes. Figure. 1. Silicon Nano wires grown on the electrodes. The potential advantages of the Nano Wire design are high surface to volume ratio which enables more electrode contact with the electrolyte, they provide continuous conduction of electrons within the electrode and finally, due to the fibrous design they are good in facile strain relaxation. These anodes of Silicon nanowire have ten times more storage capacity compared to the existing carbon anodes. The most critical parameter for the safe operation of a battery is the Solid – Electrode - Inte rface (SEI). In nanowire batteries, the SEI formation is more when there is Lithium insertion into Silicon layers. The SEI in Silicon nanowire batteries has an inner layer of inorganic lithium compound and an outer layer of organic lithium compound. Also the voltage dependence of the SEI morphology, allows more cycles of charging and discharging. The analysis of the impedance level of these batteries shows that the impedance is due to both the process of diffusion and the