George the 3rds Reign: Public Perceptions

George the 3rds Reign: Public Perceptions Discuss the public perception of George III in the first half of his reign. The sixty year reign of George III from 1760 to 1820 is the second longest of any British monarch save Victoria, his granddaughter. It endured the as yet unrivalled Gordon Riots of 1780, in which 10,000 troops were deployed and some  £100,000 of damage caused, the independence of America after years of expensive war and witnessed the French Revolution of 1789 and the horrors and war that followed. When George III died in 1820 he was well mourned: 30,000 people attended the supposedly private funeral, despite the fact that the king had been out of the public eye since 1810; shops were shut and laudatory sermons penned (Colley 1984, 94). Yet the public perception of George in the first half of his reign is somewhat more ambiguous and controversial: Samuel Romilly wrote that ‘from the beginning of his reign to the close of the American War, he was one of the most unpopular princes that ever sat on he throne’ (quoted in Colley 2005, 208). Picard (2000, 288), on the other hand, notes that the accession of George III was greeted by the people with ‘delirious enthusiasm’. On his coronation at the age of 22, George may indeed have seemed an attractive prospect, in particular because, unlike his two predecessors on the throne, he had been born and educated in England and spoke English as his first language. The stigma of being foreign did not apply to him and his attachment to Hanover, regularly preferred by George II, was not great, in fact he described it as that ‘horrid electorate’ (Ditchfield 2002, 23). In his first speech before parliament, George emphasised this, ‘born and educated in this country, I glory in the name of Britain’ (Shapiro 1972, 30). As for his character, Horace Walpole noted, the king seemed good-natured, walking about and talking to everybody as well as occupying the throne with dignity and grace and answering addresses well (Long 1962, 67). Even so, Colley has noted that while the new king may have been better received than the previous Georges, he received less public acclaim than William Pitt the Elder, whom he had rebuffed upon the death of George II (Colley 2005, 401 n.28; Colley 1984, 94; Long 1962, 64-65). Despite what might have been an optimistic beginning, the popularity of George seems to have waned, at least in certain quarters, during the 1760s. Early cartoons undermine him, showing him under the control of his mother and Lord Bute (Colley 2005, 209). A cartoon of 1770 vividly compares the reception of the king in 1760 and 1770 (Clarke 1972, 75). In contrast to the crowded street of celebrants in 1760, in 1770 the king’s procession proceeds alone through London as the driver comments ‘we are no longer plagued with the acclamation of the people’. Clarke (1972, 74) comments that this visible discontent was caused by rising population and deteriorating living standards. Other prints from the late 1760s show George as a blind, pliable child, in 1773 and 1780 he was portrayed as a drain on Britannia, in 1779 and 1784 he was shown as an oriental tyrant and (Colley 1984, 102). Perhaps due to his friendship with members of the Catholic elite and his sponsorship of the sons of Catholic ‘gentlemen of reputable character’ as well as his support for measured Catholic relief and suppression of the anti-Catholic Gordon Riots of 1780, he was even represented as a closet Catholic (Ditchfield 2002, 100-101, 106). It was during the early 1760s that John Wilkes rose to public prominence and popularity, often at the expense of the king and Bute. Wilkes, an English MP, had begun to publish a paper, The North Briton, in opposition to the Scottish Bute’s paper The Briton, which supported peace with France, (Shapiro 1972, 37). Wilkes was, amongst other things, anti-Scottish and pro-English, a womaniser and a member of the Hell Fire club (Colley 2005, 106). As such, he stood in stark contrast to the king, and seems to have been a more popular figure with the public. In response to George’s speech proposing peace with France, he published number 45 of The North Briton, in which he notoriously criticised the king and his new minister Grenville, causing his arrest under a general warrant (Clarke 1972, 42). He then capitalised on the unpopular use of general warrants, presenting himself as a champion of liberty against tyranny, and they were later declared illegal (Shapiro 1972, 47). George’s early unpopularity seems to have been due to his break with the Whigs and his promotion of his former tutor and relative political outsider Bute and their policy of peace with France (Clarke 1972, 38). He was suspected of trying to increase royal power and acting unconstitutionally, leading to accusations of tyranny, although it is only natural that Whigs and the excluded would respond in such a way after their years of prominence. His early proclamation of Britishness, while inclusive in spirit, rankled with sections of the majority English, as did his choice of the Scottish Bute, a Stuart, who was also reputedly the lover of the king’s mother and a Tory (Shapiro 1972, 32-33). His unpopularity may also have owed something to the king’s perceived dullness and ordinariness and a lack of ceremony and majesty to promote the royal image (Colley 2005, 202). For example, the royal couple were brought to their coronation in sedan chairs and Samuel Johnson comme nted that the crown was too often ‘worn out of sight of the people’ (Colley 2005, 203). In the 1770s and early 1780s, with Lord North as his minister, it was the loss of the American colonies and defeat by them that became a real public humiliation for George, as well as a political crisis (Cannon 2004). In 1775, John Wesley commented that most people ‘heartily despise his majesty, and hate him with a perfect hatred’ (quoted in Colley 2005, 208). Even so, public opinion on the war was ‘seriously fractured’ on both sides and Colley notes that the experience of this particular war, against a colony perceived as the mirror of Britain and without allies in Europe, ‘seems actually to have resolved some of the uncertainties and divisions of the 1760s and early 1770s’, although North was forced to resign in 1782 (Colley 2005, 137, 143). Indeed, North absorbed much of the responsibility and images of George himself tend to become more positive, often portraying him as St George, John Bull or later as the guardian of the nation (Colley 1984 , 102). This is especially the case following the king’s illness in 1788, which showed his vulnerability and aroused great pity (Colley 2005, 212). A more conscious fostering of royalism and its link with nationalism in second half of George’s reign inevitably casts a shadow back over his public perception in the first half. For example, the first royal jubilee was held on 25 Oct 1809 and celebrated around the empire as well as in 650 locations around England (Colley 2005, 218). While George’s famed domesticity may have been unexciting in a young king, his morality and example perhaps influenced the shifting virtues of the late eighteenth century towards an idea of the family and sensitivity and away from indecency, especially popular amongst the developing middle classes (Porter 1990, 305-307). There was also an increasing sentimental female attachment to royalty (Colley 2005, 218-19). Through his long life he became a symbol of continuity and stability in Britain against the anarchy that had overtaken much of Europe (Colley 2005, 223-24). Public ceremony and pomp also was taken more seriously with some 27,000 vol unteers displaying in Hyde Park in 1803 (Colley 2005, 225). Inevitably, the public perception of George III varied from person to person and it is imprudent to overgeneralise; there is evidence for both popularity and approval and their opposites and there is undoubtedly much that is partisan in popular publications (Colley 2005, 208, 228). However, the increasing popularity of George in the latter half of his reign does seem to highlight his more ambiguous public status in the first half, but should be taken in the context of increasing concern for fostering the royal image. Insofar as it is possible to gauge public perceptions, he was viewed in the first half of his reign with a mixture of optimism, suspicion, ridicule, love and hatred. He may have offended Wilkes, the Whigs and the old elite and seemed weak and under the control of his mother and Bute, but his loyalty to his country, delight in family, home and farm and sheer longevity eventually offered a unifying factor in a changing country and a changed world. Through the loss of Ameri ca, and his very public illness and confinement, George, rather than becoming less popular, could be seen to embody a more national feeling, and indeed this changing image, rather than power, of royalty has been developed by monarchs ever since. Thus Colley (2005, 401 n.28) observes that it was from the 1780s that there was a sustainable rise in his popularity and patriotic significance. Bibliography: Cannon, J. 2004. George III and History’s Poisoned Well. Available at: http://www.bbc.co.uk/history/state/monarchs_leaders/george_iii_poisoned_well_01.shtml (22/10/5) Clarke, J. 1972. The Life and Times of George III. London: Weidenfeld and Nicolson. Colley, L. 1984. The Apotheosis of George III: Loyalty, Royalty and the British Nation 1760-1820. Past and Present 102 (February), 94-129. Colley, L. 2005. Britons: Forging the Nation 1707-1837. New Haven and London: Yale University Press. Ditchfield, G.M. 2002. George III: An Essay in Monarchy. Basingstoke: Palgrave Macmillan. Long, J.C. 1962. George III: A Biography. London: Macmillan. Picard, L. 2000. Dr Johnson’s London: Everyday Life in London 1740-1770. London: Phoenix. Porter, R. 1990. English Society in the Eighteenth Century. Revised edition. London: Penguin. Shapiro, H. 1972. John Wilkes and Parliament. London: Longman. GIS Basics: Spatial Data Structure and Module GIS Basics: Spatial Data Structure and Module GIS Basics: Spatial Data Structure and Module Introduction The forth chapter of the book, GIS Basics, deals with spatial data structures and models. The author organizes this chapter in a way that gives a breakdown of different elements that comprise the topic and creates the relationship between them, thus forming a background with which to understand the differences between data structures and models as well as their application in geography. The essence behind such elaborate explanations is to allow for entry and application of various data types and information into computer applications and programs that allow the utilization of the same in the form of useful information. Spatial data comprises data mostly applicable in the field of geography concerning physical elements and features from the earth and human interaction and relation to such features and structures. Data and information There exists several differences between data and information. The main difference between the two is that data serves as a source of information, but information does not necessarily entail data. The presumption in this statement is that data is an ingredient of information. Data undergoes processing to create a transformation that results in a form with more meaning to the recipient, especially in terms of understanding the various aspects that prove important in making a decision. The usefulness of data in creating useful information depends on the application of such information after the conversion process. In establishing the usefulness of information, several principles apply. These principles include relevance, reliability, timeliness, intelligibility, consistency, completeness, and convenience among others. The relevance of useful information depends on the intention of such information and the appropriate level of detail. Reliability means that the user of the information h as to ensure that it is accurate and it emanates from a verifiable source, which is often acquirable via independent means. The principle of timeliness requires information to remain useful depending on the purpose for the conversion of the data. The principle of consistency incorporates the need to check with other sources while convenience means that information should be easy to handle for the user and obtain protection form malware and unsupervised access. An information system changes data into information through various processes. The first process, viz. conversion, involves the transformation of data from one format, unit of measurement, or feature of classification to another in order to match the usage. Organization of data forms the second process, which often involves arrangement of data according to database management rules and procedure for easy access and use. Structuring means that data has to undergo formatting or reformatting so that it is acceptable to a certain software application. On the other hand, modeling involves the inclusion of spatial analysis and visualization of data so that it is useful to the user in terms of understanding and decision-making. Organization and structuring are elements of crucial importance to the proper functioning of information systems as their absence makes turning data to information impossible. Information organization The data perspective of information organization People understand information organization from four main perspectives, viz. data, relationship, operating system, and application architecture. In the data perspective, people consider the organization of data in terms of their descriptive and graphical elements. Therefore, the two elements possess distinctive features necessitating different storage requirements as well as storage options. A person thus needs to understand the correct sequence in which entities occur and build up until they eventually form a data file. A data item that falls under descriptive data is one of the most basic elements in the organization of information. It is the smallest unit of storage in a database and it goes by the term ‘stored field’ in the database terminology. It may appear in the form of a number, date, an expression, or character string. A group of related data items forms a record and often appears in the form of different characteristics pertaining to the same entity. A set of related record forms a data file. The element of relation often occurs in terms of different occurrences of the same type or class of entities, regardless of whether the said entities are people, things, events, or phenomena. A collection of data items of the same type and size goes by the term ‘array’ and it can occur either in one dimension or two. When the organization of data takes the form or arrangement of entries in rows and columns, the final product is a table, which often applies to relational databases. A list, on the other hand, is a finite sequence of data items and it may follow a specific arrangement or lack any sort of order. A tree constitutes yet another form of data arrangement that falls under relational data in which each data item has an attachment to one or more data items and often takes the shape of an inverted tree. The concept of a database is one that has developed due to the introduction of computers as media for data storage. Essentially, a database and a data file contain very similar information with slight differences. The main differences that set the two apart are the type of information and medium of storage they demand. A data file contains records with the same data type and format description. A database, on the other hand, contains a group of related records organized in one or more data files with similar or different data types or formats. The type of storage for a data file is flexible enough to be manual or digital while that of the database relies strictly on computers. These differences occur due to the capacity of a computer to process more information at a time than a person does, the ability to process different data files, create a relationship between them, and store the data files within the shortest time possible. The creation of data files often occurs manually, thus limiting the amount of processing that is applicable to a particular data type or format description at any one time. Secondly, the aim for data file processing usually touches on the creation of a particular solution and often stops after the establishment of the solution. Database processing often aims at a myriad of solutions for the different data files, the creation of relations between such data files and sometimes the formulation of predictable variables that aid organizations in the decision-making process. Thirdly, a database often complies with the central control of data in order to ease the redistribution of the same within different departments in an organization. Through computer networking, this characteristic ensures that different departments within an organization receive the same information, depending on the need for such information. Databases are classifiable into relational table like, network have pointers linking them to associated files, hierarchical data tree like relationship, and object-oriented data, which are associated with specific objects. Graphical data, which is the second organization of information in the data perspective, has its most basic element known as basic graphical element. There exist three basic graphical elements, viz. point, line, and polygon or area. These elements can be employed to represent geographical features as single entities or collectively to form complex geographical features. The use of these basic graphical elements to represent geographical data yields vector data. The vector data is conventionally organized into layers of related themes, which yield entities such as base maps, vegetation, soil, and political boundaries among many others. Several themes of vector data about a specific geographical region constitute the spatial component of a geographical database. This method of representation is based on the object view of the real world. Graphical data yielded by imaging devices gives another form of graphical data known as raster data. This form of data comes from the representation of geographical data in the form of picture elements (pixels). Thus, raster pixels capture a generalized representation of a given area. This form of data can also be arranged into themes, which eventually give information such as vegetation cover and land use among others. This method of representation is based on the field view of the real world. The relationship perspective of information organization Relationships are important in information organization and they can be either categorical or spatial based on what they describe. Categorical relationships are concerned with how individual features in a classification system are linked. Classification follows the concept of scales of measurement of which there are four distinct types, viz. the nominal scale (qualitative, non-ranking, non-numerical), ordinal scale (nominal, with ranking), interval scale (ordinal, with ranking, numerical values based on arbitrary data), and ratio scale (interval scale with numerical values based on absolute data). Categorical relationships that use measurement scales, which involve ranking, have their data sorted into varying levels of detail. At the highest level of classification, data is broadly classified, but this aspect changes down the classification hierarchy. Descriptive data follows this system of classification. On the other hand, spatial relationships are concerned with how different features in space are linked to one another. In graphical data, one can effortlessly make out spatial relationships, but transferring these graphical spatial relationships into a database remains a challenge. Implicitly capturing spatial relationships into databases is characterized by the need for large storage and slow data computation. Yet spatial relationships are very important in geographical data handling. Thus, the aim of information organization and data structure in this context is to establish ways of handling spatial relationships with the least possible storage or computation thresholds. Operating system perspective of information organization In this perspective, information is arranged in the form of directories, which are special computer files that arrange other files into a hierarchy. With reference to systems that employ graphical user interfaces, directories are also known as folders. Directories fall into different levels such as root directories (top most), sub-directory (under another), and parent directory (above another). Usually, files of similar characteristics are placed in one directory such that the path that leads to a file comprises the directory name and the file name. Geographical information systems borrow the same concept, but they refer to it as the workspace. This aspect implies that in geographical information system terms, a workspace is a directory that contains files relating to a given project. The application architecture perspective of information organization Today, computer software replicates a client/server system in their architecture. This system denotes a relationship among computers on telecommunication network, or several processes within a single computer. A client thus denotes a process that seeks services from one or many servers simultaneously. A server, on the other hand, is a process that provides the requested services to one or many computers at once. Information systems have many ways by which they can replicate the client/server. However, there are five commonly used ways, viz. database, file, web, groupware, and transaction servers. The aim of information organization from this perspective is to come up with means of easing the transfer of resources between clients and servers. This goal is achievable by ensuring that data is strategically placed at the appropriate location alongside similar data to ease access to the data. Data Fundamental concepts Data conventionally refers to facts. Some are meaningful the users while others are not. The data that users consider as important is protected in arrangements known as databases. Data can be spatial or non-spatial. Spatial data is concerned with location, orientation, size, and shape. The relationship between these elements leads to spatial relationships, which is typical of spatial data. Non-spatial data, on the other hand, is conventionally linear and autonomous. The difference between spatial and non-spatial data is so pronounced that their storage and management differs. The complex nature of spatial data and its numerous relationships necessitated the development of databases. Databases underscore the information itself, not the storage medium that holds the information. GIS is in a position to be developed and managed due to databases for they form the building blocks for GIS. This aspect is made possible by the concept of database management systems (DBMS). A larger system of information organization and management is the repository. A repository is an arrangement developed with the aim of storing and protecting data. It could consist of several databases, which possibly contain related information or sometimes the databases can be completely unrelated. A repository is developed such that it supports the addition, retrieval, and deletion of the information contained therein. Some allow the changing or updating of data. Repositories are comparable to bank vaults since their primary purpose is to protect their content from theft or destruction. Repositories are known for two key features, viz. security and robustness. Mostly, there is a need for a password in order to access the contents of a repository. The robustness feature also ensures that accidental destruction of data in a repository is minimized. This goal is achieved through the transactional mechanism, whereby a series of database manipulations are designed such that incase of a ny interruption, the database restores itself to the pre-transactional state. Database management systems (DBMS) This system is a type of repository, which allows for the manipulation of a database and whose user interface allows for the administration of the database. A phonebook is the best example of a DBMS. While a repository was likened to a bank vault, a DBMS can be liked to a full-fledged bank with all its services. Thus, they provide comprehensive database manipulation functionalities. Discussion Points The distinction between data and information evades many people. They often find themselves using these two terms interchangeably, that is, one in place of the other. However, it is apparent that the two terms denote very distinct concepts such that using one instead of the other is incorrect and misleading. In the light of this observation, what are the fundamental elements of information that clearly set it apart from data? In highlighting these elements, it is necessary to outline the relationship between the two concepts as well. The advent of computers has revolutionized every field of study including geography. It is now easier to manage data, files and databases because of the improved functionality provided by computer applications that have been developed to enhance these functionalities. In the field of geography, this improvement can be seen in the development of Geographical Information Systems (GIS). With this development in mind, what are the key additions that computers have brought to the field of geography, without which, they would be considered inconsequential to this field? In the current age, information access, sharing and transfer has become easy due technological advancement. This has led to this age being termed as the information explosion age. Thus, the development of information organization systems can be seen as an attempt at making meaningful use of the information at the disposal of humanity. The three information organization perspectives discussed in this chapter all have some relevance to geography. In your assessment, is there a particular information organization perspective that can be considered more appropriate to the field of geography? What evidence supports your answer? Balanced Scorecard Case Study: Tesco Balanced Scorecard Case Study: Tesco Competitive Environment of Tesco Tesco is the largest food retailer in the UK and one of the leading grocery retailers in the world. It supplies 30% of the food purchases made in the UK. More than 550,000 employees service the companys customers in nearly 5,000 locations spread across 14 countries in Europe, Asia and North America (Tesco plc, 2010, p 1-3). The companys operations in the British retailing space, coupled with its steady overseas expansion, have opened it to numerous competitive challenges and threats. In the UK, the company faces strong and increasing competition from its heavyweight rivals like ASDA-Walmart, Sainsburys and Morrison (Finch Wood, 2010, p 1-2). Each of these organisations is constantly trying to improve its market share through various customer focused and efficiency oriented strategies (Finch Wood, 2010, p 1-2). Whilst Tesco continues to lead in market share, sales and profitability in the UK, it remains under constant competitive pressure and any strategic or market place error could have adverse results (Finch Wood, 2010, p 1-2). The economic environment in the UK is possibly going through its worst turmoil since the 1980s. Increasing unemployment, thousands of job losses and a very slowly reviving economy have dampened the enthusiasm of supermarket shoppers and created difficult market conditions fo r market participants (Kollewe, 2010, p 1-2). Sharp reduction in government spending, the proposed elimination of thousands of public sector jobs by the present coalition government and the three-fold increase in academic fees have already led to widespread protests and are expected to affect the economic climate further (ABC Inc, 2010, p 1). Whilst the company is steadily increasing its global footprint, the UK continues to be its overwhelmingly large market and accounts for practically 67 % of its total sales and 71 % of its profits (Tesco plc, 2010, p 1-3). The economic and social turmoil in the country, along with increased competitive pressure from its main competitors will certainly intensify environmental and competitive challenges for the company intense in the coming years (Tesco plc, 2010, p 1-3). Tesco has in recent years been working at steadily expanding its global operations. Its global presence is however less than that of Walmart, Carrefour and Metro and its position in the global retail market, whilst strong and increasing, do not mirror its dominant position in the United Kingdom and it is the grocery leader in only two overseas markets, Malaysia and Thailand (Finch Wood, 2010, p 1-2). Tesco, like other major firms expanding strongly into international markets often faces different and difficult environmental and competitive conditions in its various operational regions. Much of the competition in its overseas markets comes from numerous local competitors who not only operate with far lesser overheads but also understand local tastes and preferences much better. Tesco is combating competition in its overseas markets and trying to establish its presence with the help of well established local firms and different store formats (Tesco plc, 2010, p 1-3). However the globa l experiences of various supermarket majors like Walmart and Carrefour reveal that global expansion is not easy and significant market failures can occur from incomplete understanding of market requirements and choice of market strategies (Sarkar, 2009, p 1-3). Tescos Corporate and Marketing Strategy Tescos rapid growth in recent decades has been driven by its carefully planned and sustained customer focused strategy. The company is possibly the only retailer to appeal to different market segments, upmarket, midrange and low price. It constantly focuses on improvement of customer value and services with focused action in areas like supply chain management, pricing, quality, product range and in-store as well as on-line customer convenience. The company initiated a major strategic change in the mid 1990s with the adoption and customisation of the balanced scorecard approach, soon after it was first advanced by Robert Kaplan and David Norton. Balanced Scorecard Approach The balanced scorecard approach was developed by Kaplan and Norton to provide businesses with a holistic tool for performance measurement in different critical areas of business firms. Whilst much of performance measurement in the past focused on the financial aspects of the business, the balanced scorecard approached performance measurement from four viewpoints, namely the financial perspective, the customer perspective , the business process perspective and the learning and growth perspective (Kaplan Norton, 1996, p 7-13). The balanced score card whilst originally constructed for measurement of performance is now used for formulation and implementation of strategy by business firms. Organisations adopting the balanced scorecard set objectives in each of these areas and thereafter formulate targets and initiatives for meeting such objectives, as well as measures to assess actual progress in meeting them (Kaplan Norton, 1996, p 7-13). Its use enables firms to clarify strategy in terms of the different dimensions outlined by the balanced scorecard tool, communicate strategic objectives in different areas, plan set targets and align strategic initiatives, and implement systems for achievement of feedback and engagement of double loop learning (Kaplan Norton, 1996, p 7-13). Adoption of Balanced Scorecard by Tesco Tesco adopted the balanced scorecard method in the mid 1990s to drive its strategy and operations. Tescos adoption of the balanced scorecard method led to the development of the famous Tesco Steering Wheel, which was originally divided into four quadrants, namely Customers, People, Operations and Financials (Kaplan, 2008, p 1-2). The Tesco Steering Wheel (TSW) originates from the companys core purpose and long term objective, namely the creation of value for customers in order to earn their constant loyalty. The company added a fifth dimension to the TSW in 2007, namely community, in order to encourage employees to become excellent citizens and improve their communities. A diagram of the new Tesco Steering Wheel with five quadrants is provided as under (Kaplan, 2008, p 1-2). (Source: Kaplan, 2008, p 1) Tescos steering wheel helps in ensuring that its 550,000 employees in multiple countries work towards delivering distinctive and unswerving buying experiences to consumers in each and every store. The concept of the TSW came about from the adoption of the balanced scorecard in the early 1990s when Tesco engaged in a process to elucidate its mission and strategy to ensure the realization of this objective. Tesco, (in the words of Sir Terry Leahy, CEO) doesnt want one leader. We want thousands of leaders who take initiative to execute the strategy. (Kaplan, 2008, p 1) Tesco used the steering wheel, a clear symbol for a tool to drive performance and assist employees find the way into the future, to communicate to its employees. The original TSW has had four equal arcs, representing the four areas of balance scorecard focus, namely financials, customers, operations, and employees. The company added another dimension, community, to the TSW in 2004 to encourage and support workers to participate in and help the communities where they work and live (Tesco plc, 2010, p 1-3). Tescos steering wheel is not easy to implement. Extensive efforts are required by way of consumer research, collection of data, and analytics to ensure that objectives and metrics continue to remain appropriate, even as consumer tastes and preferences change and competition intensifies (Kaplan, 2008, p 1-2). All Tesco stores get monthly updates on the steering wheel, summaries of metrics of the five arcs four arcs, so that Tesco employees in different regions and multiple formats get appropriate performance feedback. Tesco adds to the effectiveness of its steering wheel report with small lists that explain important strategic key elements simply so that employees can pursue in their routine functions. The TSW has assisted the company in focusing on its strategy during its rapid growth in the 1990s and the 2000s (Kaplan, 2008, p 1-2). Tescos Strategic Map in the Coming Years Tesco has an established and steady growth strategy that is based upon broadening business scope in order to achieve sustainable long-term growth by pursuing customers into large and growing markets at home and new markets overseas (Kaplan, 2008, p 1-2). The companys growth strategy has five main components, namely (a) to achieve success in international retailing, (b) to increase the core UK business, (c) to achieve equal strength in non-food businesses, (d) develop retailing services and (e) place the community at the centre of all operations. Tescos business strategy has been based on diversification during the last decade and the company intense to strengthen its various businesses across multiple countries and formats during the next two years (Kaplan, 2008, p 1-2). The companys strategic objectives for the coming two years are indicated in the BSC chart provided below. These objectives have been based essentially on increasing and maintaining the important thrust areas of the company. Financials Improve group sales by more than 10% Reduce start-up losses in the US and make US operations profitable Improve international sales by more than 25% Improve return on capital employee to 15% Improve UK market share by 1% Customers Focus on customers having to spend less in the UK Gove customers health choices Improve customer choice Improve range of clothing Improve range and quality of general merchandise Increase product range of Tesco bank Make FF a global fashion brand Processes Improve health and safety processes Improve capabilities of people Improve processes for product safety Improve controls for fraud and compliance People Create 20,000 new jobs each year Reward our employees for their work and support their development Develop leaders with greater intensity Improve the effectiveness of whistle blowing policy Improve diversity and inclusivity Improve employee retention to 95% Apart from the above quadrant, Tesco also has the following strategic objectives in Community Care. Tesco has undertaken numerous initiatives in labeling of products, reduction of carbon footprint, diverting store waste directly to landfill and reduction of carbon emission from stores and distribution centers. The strategic objectives for the next two years in this area have been formed on the basis of Tescos commitment in specific areas of community care. Reduce carbon emission from stores and distribution centers by 10% each year. Support causes in local communities. By and sell products responsive.

Metals are electropositive chemical elements

Metals are electropositive chemical elements that are characterised by the following qualities: ductility, malleability, luster, opacity, and conductance of heat and electricity. They can replace the hydrogen of an acid and form bases with hydroxyl radicals. Density is defined as a material's mass divided by its volume. Metals typically have relatively high densities, particularly when compared to polymers. Often, materials with high densities contain atoms with high atomic numbers, such as gold or lead. However, some metals such as aluminum or magnesium have low densities. These metals are useful in applications requiring other metallic properties but in which low weight is also beneficial. Fracture Toughness can be described as a material's ability to avoid fracture, especially when a flaw is introduced. Glass, for example, has low fracture toughness (although it exhibits high strength in the absence of flaws). Metals typically have high fracture toughness. Metals can generally contain nicks and dents without weakening very much. They are also impact resistant. A football player relies on this fact to ensure that his facemask won't shatter. The roll cage on a racecar, for example, is created from steel. This steel should remain intact in a crash, protecting the driver. The ability of a material to bend or deform before breaking is known as plastic deformation. Some materials are designed so that they don't deform under normal conditions. You don't want your car to lean to the east after a strong west wind, for example. However, sometimes we can take advantage of plastic deformation. The crumple zones in a car absorb energy by undergoing plastic deformation before they break. Stress takes place when forces pull (this is known as tension), push (compression) or act in combination on a material. Once the force is applied, the material responds by distorting, counterbalancing the force. With a larger force, there will be a correspondingly greater distortion until the item breaks. Stress is the force applied per unit of cross-sectional area square to the force. This can be expressed mathematically as:: Stress (s) = Force / unit of area The metric system units for stress are Newton per square meter (N/m2) and imperial system units are pounds per square inch (psi). Strain is the amount the material deforms from the unloaded state when the force is applied. Its formula is: Strain (x) = Change in length / original length Since strain is a ratio of length divided by a length, it has no units. By the formula, we can see that it represents a proportional change in size. Deformation occurs when a force is applied to a metal. The metal is therefore strained. The greater the force – the more the deformation (strain). This relationship is recognised in Hooke's Law. Hooke's Law describes an elastic region where stress and strain are proportional (a straight line on a graph). In this region the metal acts like a spring and when the load is removed the deformation (strain) reduces and it returns to its original shape. If instead the load increases, the strain (deformation) rises and the metal undergoes uniform plastic deformation. The stress-strain graph is curved in this region. Eventually, a maximum stress is reached when the metal when the material reaches its limit of necking. Necking is localized thinning that occurs during sheet metal forming prior to fracture. The onset of localized necking is dependent upon the stress state which is affected by geometric factors. Finally, past the maximum stress point, a point is reached where the metal can no longer sustain the load and it yields. The behavior of metals under load is a result of their atomic arrangement. When a material is loaded it deforms minutely in reaction to the load. The atoms in the material move closer together in compression and further apart in tension. The amount an atom moves from its neighbor is its strain. As a force is applied the atoms change a proportionate distance. This model however, does not explain why there is sudden yielding. With most modern metals yielding usually occurs at about 1% of the theoretic strength of the atomic bonds. Many materials yield at about 0.1% of the theoretic strength. Rather, metals exhibit such low strengths because of imperfect atomic structures in the crystal lattices which comprise them. A row of atoms will often stop mid crystal, creating a gap in the atomic structure. These gaps act as dislocations, which are huge stress raising points in the metal. These dislocations move when the metal is stressed. A dislocation is defined as allowing atoms to slip one at a time, making it easier to deform metals. Dislocation interactions within a metal are a primary means by which metals are deformed and strengthened. When metals deform by dislocation motion, the more barriers the dislocations meet, the stronger the metal. The presence of dislocations in metal allows deformation at low levels of stress. However, eventually so many dislocations accumulate that insufficient atoms are left to take the load. This causes the metal to yield. Plastic deformation causes the formation of more dislocations in the metal lattice. This has the potential to create a decrease in the mobility of these dislocations due to their tendency to become tangled or pinned. When plastic deformation occurs at temperatures low enough that atoms cannot rearrange, the metal can be strengthened as a result of this effect. Unfortunately, this also causes the metal to become more brittle. As a metal is used, it tends to form and grow cracks, which eventually cause it to break or fracture. Atoms of melted metal pack together to form a crystal lattice at the freezing point. As this occurs, groups of these atoms form tiny crystals. These crystals have their size increased by progressively adding atoms. The resulting solid, instead of being a single crystal, is actually many smaller crystals, called grains. These grains will then grow until they impose upon neighbouring growing crystals. The interface between the grains is called a grain boundary. Dislocations cannot easily cross grain boundaries. If a metal is heated, the grains can grow larger and the material becomes softer. Heating a metal and cooling it quickly (quenching), followed by gentle heating (tempering), results in a harder material due to the formation of many small Fe3C precipitates which block dislocations. The atomic bonding of metals also affects their properties. Metal atoms are attached to each other by strong, delocalized bonds. These bonds are formed by a cloud of valence electrons that are shared between positive metal ions (cations) in a crystal lattice. These outer valence electrons are also very mobile. This explains why electrons can conduct heat and electricity – the free electrons are easily able to transfer energy through the material. As a result, metals make good cooking pans and electrical wires. In the crystal lattice, metal atoms are packed closely together to maximize the strength of the bonds. It is also impossible to see through metals, since the valence electrons absorb any photons of light hitting the metal. Thus, no photons pass through. Alloys are compounds consisting of more than one metal. Creating alloys of metals can affect the density, strength, fracture toughness, plastic deformation, electrical conductivity and environmental degradation. As an example, adding a small amount of iron to aluminum will make it stronger. Alternatively, adding some chromium to steel will slow the rusting process, but will make it more brittle. Some alloys have a higher resistance to corrosion. Corrosion, by the way, is a major problem with most metals. It occurs due to an oxidation-reduction reaction in which metal atoms form ions causing the metal to weaken. The following technique that has been developed to combat corrosion in structural applications: sacrificial anode made of a metal with a higher oxidation potential is attached to the metal. Using this procedure, the sacrificial anode corrodes, leaving the structural part, the cathode, undamaged. Corrosion can also be resisted by the formation of a protective coating on the outside of a metal. For example, steels that contain chromium metal form a protective coating of chromium oxide. Aluminum is also exhibits corrosion resistant properties because of the formation of a strong oxide coating. The familiar green patina formed by copper is created through a reaction with sulfur and oxygen in the air. In nature, only a few pure metals are found. Most metals in nature exist as ores, which are compounds of the metal with oxygen or sulfur. The separation of the pure metal from the ore typically requires large amounts of energy as heat and/or electricity. Because of this large expenditure of energy, recycling metals is very important. Many metals have high strength, high stiffness, and have good ductility. Some metals, such as iron, cobalt and nickel are magnetic. Finally, at extremely low temperatures, some metals and intermetallic compounds become superconductors. Ceramic: Ceramic materials are inorganic, nonmetallic materials, typically oxides, nitrides, or carbides. Most ceramics are compounds between metallic and nonmetallic elements in which the interatomic bonds are either totally ionic, or predominantly ionic but having some covalent character. While many adopt crystalline structures, some form glasses. The properties of the ceramics are due to their bonding and structure. The term ceramic comes from the Greek word keramikos, which means burnt stuff! This signifies that the desirable properties of these materials are typically achieved through a high-temperature heat treatment process. This process is called firing. Ceramics are often defined to simply be any inorganic nonmetallic material. By this definition, glasses are also ceramic materials. However, some materials scientists state that a true ceramic must also be crystalline, which excludes glasses. The term â€Å"ceramic† once referred only to clay-based materials. However, new generations of ceramic materials have tremendously expanded the scope and number of possible applications, broadening the definition significantly. Many of these new materials have a major impact on our daily lives and on our society. Ceramics and glasses possess the following useful properties: high melting temperature, low density, high strength, stiffness, hardness, wear resistance, and corrosion resistance. Additionally, ceramics are often good electrical and thermal insulators. Since they are good thermal insulators, ceramics can withstand high temperatures and do not expand greatly when heated. This makes them excellent thermal barriers. The applications of this property range from lining industrial furnaces, to covering the space shuttle, shielding it from high reentry temperatures. The aforementioned glasses are transparent, amorphous ceramics which are extensively used in windows and lenses, as well as many other familiar applications. Light can induce an electrical response in some ceramics. This response is called photoconductivity. An example of photoconductivity occurs in fiber optic cable. Fiber optic cable is speedily replacing copper for communications – optical fibers can transmit more information for longer distances, and have less interference and signal loss than traditional copper wires. Ceramics are also typically strong, hard, and durable materials. As a result, they are attractive structural materials. One significant drawback to their use is their brittleness. However, this problem is being addressed by the creation of new materials such as composites. While ceramics are typically good insulators, some ceramics can actually act as superconductors. Thus, they are used in a wide range of applications. Some (the good insulators) are capacitors, others semiconductors in electronic devices. Some ceramics are piezoelectric materials, which convert mechanical pressure into an electrical signal. These are extremely useful for sensors. For superconducting ceramics, there is a strong research effort to discover new high Tc superconductors and to then develop possible applications. Processing of crystalline ceramics is based on the basic steps which have been used for ages to make clay products. The materials are first selected, then prepared, formed into a required shape, and finally sintered at high temperatures. Glasses, on the other hand, are typically processed by pouring while in a molten state. They are then worked into shape while hot, and finally cooled. There are also new methods, such as chemical vapor deposition and sol-gel processing, currently being developed. Ceramics have a wide range of applications. For example, ceramic tiles cover the space shuttle as well as our kitchen floors. Ceramic electronic devices make possible high-tech instruments for everything from medicine to entertainment. There are also some special properties which a few ceramics possess. For example, some ceramics are magnetic materials and, as mentioned above, some have piezoelectric properties. The one major drawback of ceramics and glasses is that they are brittle. As mentioned above, certain types of ceramics possess superconducting properties at extremely low temperatures. For example, there are high-temperature superconducting ceramic materials that have recently been discovered. These materials exhibit virtually no electrical resistance below 100 degrees Kelvin. Also, these materials exhibit what is known as the Meissner effect. This means that they repel magnetic flux lines, allowing a magnet to hang in the space above the superconductor. An example of special group of crystalline ceramics is the group called Perovskites. They have captured the interest of geologists due to the information they can yield about Earth's history. The most intensely studied Perovskites at the present time are those that superconduct at liquid nitrogen temperatures. Ceramics were historically used for creating pottery and artwork, largely because the brittleness and difficulty of manufacturing ceramics restricted them from other uses until recently. However, the market requirement for microelectronics and structural composite components has risen, causing the demand for ceramic materials to likewise increase. Fiber-reinforced composites, an example of a modern ceramic application, are being created from ceramic fibers with extremely high stiffness, such as graphite and aluminum oxide. Polymers: Polymers are substances which contain a large number of structural units joined by the same type of linkage. They are any of many natural and synthetic compounds, usually of high molecular weight. They typically consist of up to millions of repeated linked units, each a relatively light and simple molecule. These substances often form into a chain-like structure. Some polymers have been around since the beginning of time in the natural world. For example, starch, cellulose, and rubber all possess polymeric properties. Man-made polymers, a relatively recent development, have been studied since 1832. However, the polymer industry today has is larger than the aluminum, copper and steel industries combined. Polymers have a huge range of applications that greatly surpasses that of any other class of material available to man. Current applications include adhesives, coatings, foams, packaging materials, textile and industrial fibers, elastomers, and structural plastics. Polymers are also widely used for many composites, electronic devices, biomedical devices, optical devices, and precursors for many newly developed high-tech ceramics (such as the fiber-reinforced composite mentioned at the end of the ceramic section). The word polymer literally has the meaning â€Å"many parts.† A polymeric solid material can be considered to be one containing many chemically bonded parts or units, themselves which are bonded together to form a solid. Polymers are typically good insulators. While a large variety of polymer applications were described above, two of the most industrially important polymeric materials are plastics and elastomers. Plastics are a large and varied group of synthetic materials. They are processed by forming or molding into shape. There are many types of plastics such as polyethylene and nylon. Polymers can be separated into two different groups depending on their behaviour when heated. Polymers with linear molecules are often thermoplastic. Thermoplastic substances soften upon heating and can be remolded and recycled. They can be semi-crystalline or amorphous. The other group of polymers is the thermosets. In contast to thermoplastics, these substances do not soften under heat and pressure and cannot be remolded or recycled. Instead, they must be remachined, used as fillers, or incinerated to remove them from the environment. Thermoplastics are typically carbon-containing polymers which are synthesized by addition or condensation polymerization. This procedure forms strong covalent bonds within the chains and weaker secondary Van der Waals bonds between the chains. Normally, the secondary forces can be easily overcome by thermal energy, which makes thermoplastics moldable at high temperatures. After cooling, thermoplastics will also retain their newly reformed shape. Common applications of thermoplastics include parts for common household appliances, bottles, cable insulators, tape, blender and mixer bowls, medical syringes, mugs, textiles, packaging, and insulation. Thermosets exhibit the same Van der Waals bonds that thermoplastics do. They also have a stronger linkage to other chains. Different chains together in a thermoset material are chemically held together by strong covalent bonds. The chains may be directly bonded to each other, or alternatively may be bonded through other molecules. This â€Å"cross-linking† between the chains is what allows the material to resist softening upon heating. Thus, thermosets must be machined into a new shape if they are to be reused or they can serve as powdered fillers. However, while thermosets are difficult to reform, they have many distinct advantages in engineering design applications. These include high thermal stability and insulating properties, high rigidity and dimensional stability, resistance to creep and deformation under load, and low weight. A few common applications for thermosets include epoxies (glues), automobile body parts, adhesives for plywood and particle board, and as a matrix for composites in boat hulls and tanks. The polymer molecule, a long chain of covalent-bonded atoms, is the basic building block of a plastic. Polymers are typically carbon based and have relatively low melting points. Polymers have a very wide range of properties that enable them to be extensively used in society. Some uses include car parts, food storage, electronic packaging, optical components, and adhesives. Synthetic fabrics are essentially man-made copies of natural fabrics. Synthetic fibers do not occur in nature as themselves. They are usually derivatives of petroleum products. Examples of common synthetic fabrics are polyester, spandex, rayon, and velcro. Recent technological developments have lead to electrically conductive polymers. The behaviour of semiconductors can now be achieved with polymeric systems. For example, there are semiconducting polymers which, when sandwiched between two electrodes, can generate light of any color. This technology has the potential of leading to OLED (organic light-emitting diode) flat panel displays. This display would be light in weight, have low power consumption, and perhaps be flexible. Liquid crystals are another example of polymeric materials. As the name suggests, a liquid crystal is a state of matter intermediate between a standard liquid and a solid. Liquid crystal phases are formed from geometrically anisotropic molecules. This typically means they are cigar shaped, although other shapes are possible. The polymer molecules have a certain degree of order in a liquid crystal phase. Take the simplest case, the Nematic phase, in which the molecules generally point in the same direction but still move around with respect to one another as would be expected in a liquid. However, under the influence of an applied electric field, the alignment of the polymer molecules gives rise to light absorption. Composites: Composites are materials, usually man-made, that are a three-dimensional combination of at least two chemically distinct materials, with a distinct interface separating the components. They are created to obtain properties that cannot be achieved by any of the components acting alone. In composites, one of the materials, called the reinforcing phase, is in the form of fibers, sheets, or particles. This material is embedded in the other materials, called the matrix phase. The reinforcing material and the matrix material can be metal, ceramic, or polymer. Typically, reinforcing materials are strong with low densities while the matrix is usually a ductile, or tough, material. The purpose of the composite, when it is designed and fabricated correctly, is to combine the strength of the reinforcement with the toughness of the matrix to achieve a combination of desirable properties not available in any single conventional material. The downside is that such composites are often more expensive than conventional materials. Some examples of current applications of composites include the diesel piston, brake-shoes and pads, tires and the Beechcraft aircraft in which 100% of the structural components are composites. A structural composite often begins with lay-up of prepreg. At this point, the choice of fiber will influence the basic tensile and compressive strength and stiffness, electrical and thermal conductivity, and thermal expansion of the final pre-preg material. The cost of the composite can also be strongly influenced by the fiber selected. The resin/fiber composite's strength depends primarily on the amount, arrangement and type of fiber (or particle) reinforcement in the resin. Typically, the higher the reinforcement content, the greater the strength. There are also some cases in which glass fibers are combined with other fibers, such as carbon or aramid, to create a hybrid composite that combines the properties of more than one reinforcing material. Additionally, the composite is typically formulated with fillers and additives that change processing or performance parameters. Integrating the ceramic, metallic, plastic and semiconductor materials is a necessary requirement to the fabrication of the micro-electronics package. This is an example of a composite system whose function is to provide interface between the central IC (Integrated Chip) and the other items on, for example, a PCB (printed circuit board). Semiconductors: There is a relatively small group of elements and compounds that has an important electrical property, semi-conduction, which makes them neither good electrical conductors nor good electrical insulators. Instead, their ability to conduct electricity is intermediate. These materials are called semiconductors, and in general, they do not fit into any of the structural materials categories based on atomic bonding. For example, metals are inherently good electrical conductors. Ceramics and polymers (non-metals) are generally poor conductors but good insulators. The semiconducting elements (Si, Ge, and Sn) from column IV of the periodic table serve as a kind of boundary between metallic and nonmetallic elements. Silicon (Si) and germanium (Ge), widely used elemental semiconductors, are outstanding examples of this class of materials. These elemental semiconductors are also known as Mono Semiconductors. Binary semiconductors are formed by a compound of two elements, normally an element from group III combined with an element from group V (such as CdS), or a element from group II combined with an element from group VI (such as GaAs). Tertiary semiconductors are formed by a compound of three elements. These semiconductors are typically compounds of elements from groups I, III and VI (such as AgInS) or elements from groups II, IV and V (such as ZnGeAs). All materials have energy bands in which their electrons can exist. In metals, as stated above, the valence band is partially-filled, and the electrons can move through the material. In semiconductors, on the other hand, there is a band gap that exists, and electrons cannot jump the gap easily at low temperatures. At higher temperatures, more of the semiconductor`s electrons can jump the gap. This causes its conductivity to go up accordingly. Electrical properties can also be changed by doping This too, is one of their great assets. Putting impurities in a semiconductor material can result in two different types of electrical behaviour. These are the so-called n (negative) and p (positive) type materials. Group V elements like arsenic added to a group IV element, such as silicon or germanium, to produce n-type materials. This occurs due to the extra valence electron in group V materials. On the other hand, group III materials like boron produce the p-type because they have only three valence electrons. When n-type material is connected to a p-type material, the device then exhibits diode behaviour. In other words, current can flow in one direction across the interface but not in the other. Diodes can act as rectifiers, but they have also led to the development of the transistor. A bipolar junction transistor (BJT) is a diode with an added third material which creates a second interface. While both npn or pnp types exist, their basic operation is essentially the same as two diodes connected to each other. With proper biasing of the voltages across each diode of the device, large current amplification can be produced. Today, metal oxide semiconductor field effect transistors (MOSFETS) have become widely used and have replaced the BJT in many applications. As a result, millions of transistors can be placed on a single silicon chip or integrated circuit. These IC chips have better reliability and consume less power than the large vacuum tube circuits of the past. The fabrication of electronic devices from the raw materials requires two major steps. The semiconductor is first melted, and a seed crystal is used to draw a large crystal of pure, solid semiconductor from the liquid. Wafers of the semiconductor are sliced and polished. Second, the circuit pattern is etched or deposited using a photolithographic process. The individual chips are finally sectioned from the initial wafer. Semiconductors experience covalent bonding. Their electrons are more tightly bound than the electrons in metals, but much more loosely bound than the electrons in insulators. The atoms in semiconductors are typically arranged in a crystal structure: a diamond-like tetrahedral (in which each atom is bonded to 4 others). Semiconductors are also typically semi-shiny. The intermediate ability of semiconductors to conduct electricity at room temperature makes them very useful for electronic applications. For example, the modern computing industry was made possible by the capability of silicon transistors to act as fast on/off switches. Electronic computing speed has greatly increased with the integrated circuit. For example, the cycle times of today's computers are now measured in nanoseconds. Opto-electronic (laser diode) research is extending the already huge rate at which information can be transmitted. Biomaterials: A biomaterial is any nondrug material that can be used to treat, enhance, or replace any tissue, organ, or function in an organism. The term biomaterial refers to a biologically derived material that is used for its structural rather than its biological properties. It also refers to any material, natural or man-made, that comprises whole or part of a living structure, or biomedical device which performs, augments, or replaces a natural function. A biomaterial can be a metal, ceramic, polymer or composite. They may be distinguished from other materials because they possess a combination of properties, including chemical, mechanical physical and biological properties, which allow them to be suitable for safe, effective and reliable use within a physiological environment. For example, collagen, the protein found in bone and connective tissues, can be used as a cosmetic ingredient. A second example is carbohydrates modified with biotechnological processes that have been used as lubricants for biomedical applications or as bulking agents in food manufacture. The performance of biomaterials depends on material properties, design, biocompatibility, surgical technique, and the health of patient. In particular, biocompatibility relies on the acceptance of the device by the body. Ideally, there should be no irritation, inflammation, or allergic response Both biomaterials and biomechanical expertise are needed to perform in vitro testing of spinal implants. Endo-vascular stents provide structural support vessels following angioplasty and other major medical procedures. After an angioplasty procedure, vessels can experience re-stenosis and eventually return to their original pre-operative diameter. In as many as 10% of the procedures, the vessels may even collapse immediately. To prevent the vessels from shrinking, endo-vascular prosthesis or stents are used. These stents are examples of biomaterials. Stents are tubular structures consisting of a spring, wire mesh or slotted tubes that are deployed inside the vessel. Depending on the design and intended use (coronary/ peripheral), they can range in diameter from several millimeters to many times that size. A biomaterial must be typically have the following properties: it must be inert or specifically interactive, biocompatible, mechanically and chemically stable (or biodegradable), processable (for manufacturability), have good shelf life, be nonthrombogenic (does not cause clot formation) if it is blood-contacting, and be sterilizable. There are examples of biomaterials and compatibility problems which arise from the materials not having the above properties. These include dialysis tubing made of cellulose acetate, a â€Å"commodity plastic†, which is known to activate platelets and blood complement. Additionally, Dacron, a polymer widely used in textiles, has been used in vascular grafts, but only gives occlusion-free service for diameters larger than 6 mm. Finally, commercial grade polyurethanes, initially used in artificial hearts, can be thrombogenic (they cause clot formation). There are many prominent applications of biomaterials used in the medical profession today. Biomaterials are used in orthopedics for joint replacements (hip, knee), bone cements, bone defect fillers, fracture fixation plates, and artificial tendons and ligaments. They are also used for cardiovascular vascular grafts, heart valves, pacemakers, artificial heart and ventricular assist device components, stents, balloons, and blood substitutes. Another application is in ophthalmics, for contact lenses, corneal implants and artificial corneas, and intraocular lenses. They can also have cosmetic applications, such as in augmentation mammoplasty. Finally, other applications include dental implants, cochlear implants, tissue screws and tacks, burn and wound dressings and artificial skin, tissue adhesives and sealants, drug-delivery systems, matrices for cell encapsulation and tissue engineering, and sutures. 2). The following paragraphs will provide an analysis of the modern pop can and the considerations taken by the manufacturer in its design. The overall design of the can has several advantages over another popular beverage container, the glass bottle. The pop can is inherently light weight and cheap due to the aluminum or steel alloys that are used in its creation. The cost of a can accounts for only about 4 cents of the price of a canned beverage. About 10 cents goes for advertising. The 12 ounces of beverage in the container typically costs less than a penny to produce. It is also not easily breakable, unlike glass. The shape of the can is easy to hold in the hand, making it much easier for a customer to use. The aluminum or steel alloys of the can also have the ability to undergo expansion without breaking the container. Thus, if a pop can is frozen, it will not explode, it will simply deform. Glass, on the other hand, would not as easily deform and would likely break in this situation. Pop cans are also allow cheaper packaging methods than bottles to be used. This is because the cans can come into contact with each other without breaking, unlike bottles. This allows many cans to be transported without the need for extensive protective barriers between the individual cans. An additional feature that allows the cans to be more easily transported and organised is the shape of the bottom and top of the can. Both the bottom and top have a lip. This lip protrudes upward from the top and downwards from the bottom. In other words, there is a indentation in both the top and bottom of the can, as shown in the following figure: The radii of the top and bottom lips are matched so that one can is able to be stacked on top of another can. In other words, the top lip of one can fits neatly into the bottom lip of the second can. This is shown in the following diagram. This stacking feature is not possible with bottles, since the bottom base of a bottle does not resemble its top spout. The pop-top soda, with their attached tab, can provide an excellent example of inherently safer design from everyday life. When soda in cans was first introduced, a separate device was required to open these cans, and the first â€Å"pop-tops† represented a major advance in convenience (and environmentalism). The initial pop-tops were scored tear strips in the can top with attached rings or levers to grasp and tear the metal tab from the can. The top was completely removed from the can once the tab was opened, and this top was then discarded. These tabs were therefore environmental hazards when discarded. Alternatively, some people would dispose of the tab by placing it into the can before drinking the soda. This caused the tab to occasionally be swallowed when drinking from the can, so it sometimes had to be surgically removed. The current design of the pop-top soda can, where the tab remains an integral part of the can after opening, represents an inherently safer design. While the tab can be detached by flexing it back and forth until the metal fails, this requires some additional effort to do. It is therefore easier to use the can safely. The procedure involved in creating pop cans will now be outlined. This procedure demonstrates some of the major components of the cans. Modern pop cans are made from either steel or aluminium using advanced engineering and sophisticated technology. There is a special grade of low-carbon steel is used for steel drink cans, which is coated on each side with a very thin layer of tin. This tin allows the surface to be protected against corrosion. It also acts as a lubricant while the can is being formed. In aluminium cans, the aluminium is alloyed with magnese and magnesium, providing greater strength and ductility. Aluminium alloys of different strengths and thickness are used for making the can body and the end. The reason that the alloy used from the end must be stronger than that used for the body will be described shortly. The steps involved in manufacturing cans are illustrated in a simplified way below: The aluminium or steel strip arrives at the can manufacturing plant in huge coils. A thin film of oil is then used to lubricate the strip. The strip is then fed continuously through a cupping press that blanks and draws thousands of shallow cups every minute. Each cup is pressed through a set of tungsten carbide rings. This ironing process redraws and literally thins and raises the walls of the cans into their final can shape. Trimmers are then used to remove the surplus irregular edge and cut each can to a precise, specific height. The excess can material is recycled. These trimmed can bodies are passed through highly efficient washers. They are then dried. As a result, all traces of oil are removed in preparation for coating internally and externally. The clean cans are coated externally with a clear or pigment base coat. This coat provides a good surface for the printing inks. The cans are then passed through a hot air oven to dry the lacquer onto the surface. Next, a highly sophisticated printer/decorator applies the printed design in up to six colours. A varnish is also applied. 9.A coat of varnish is also applied to the base of each can by a rim-coater. 10.The cans pass through a second oven which dries the inks and varnish. 11.The inside of each can is sprayed with lacquer. This special layer is to protect the can itself from corrosion and its contents from any possibility of interaction with the metal. 12.Once again, lacquered internal and external surfaces are dried in an oven. 13.The cans are passed through a necker/flanger. Here the diameter of the wall is reduced or ‘necked-in'. The top of the can is flanged outwards to accept the end once the can has been filled. 14.Every can is tested at each stage of manufacture. At the final stage it passes through a light tester which automatically rejects any cans with pinholes or fractures. 15.The finished can bodies are then transferred to the warehouse to be automatically palletised before dispatch to filling plant. The Can End 1.Can end manufacture begins with a coil of special alloy aluminum sheet. 2.The sheet is fed through a press which stamps out thousands of ends every minute. 3.At the same stage the edges are curled. 4.The newly formed ends are passed through a lining machine which applies a very precise bead of compound sealant around the inside of the curl. 5.A video inspection system checks the ends to ensure they are perfect. TAB.The pull tabs are made from a narrow width coil of aluminum. The strip is first pierced and cut and the tab is formed in two further stages before being joined to the can end. 6.The ends pass through a series of dies which score them and attach the tabs, which are fed in from a separate source. 7.The final product is the retained ring pull end. 8.The finished ends, ready for capping the filled cans, are packaged in paper sleeves and palletised for shipment to the can filler. As mentioned above, a printer/decorator is used in the manufacturing of cans to apply a printed design in up to six colours to the can body. A varnish is then applied. A varnish is a viscid liquid, consisting of a solution of resinous matter in an oil, or a volatile liquid, typically laid on work with a brush. Once it is applied, the varnish soon dries, either by evaporation or chemical action, and the resinous part forms thus a smooth, hard surface, with a beautiful gloss, capable of resisting, to a greater or less degree, the influences of air and moisture. The varnish therefore improves the appearance of the printed design on the can. It also increases the durability of the design by ensuring that it is more resistant to the wearing effects of the elements. This can be readily observed through common experience. Even old, used pop cans retain their printed designs very well, despite being subjected to the elements such as moisture or air. Bottles, on the other hand, typically have paper labels attached with glue. This requires glue and paper. These bottle labels also do not possess the glossy sheen of the pop can design. Finally, they are more easily susceptible to the influences of the elements, particularly air and moisture. For example, placing a glass bottle and its label in water will cause the label to saturate with water. This degrades the legibility and appearance of the label, and greatly increases the chance that it will tear or fall off the bottle. In contrast, placing a pop can in water has no effect on the legibility, appearance, or durability of the printed design. The base-coater gives the can an exterior coat to enable the printing colours to fix properly (the base coat is sometimes The of the pop can is a separate piece to allow filling by the beverage maker prior to the top being installed. It can now be revealed why bottled beer and beer from a tap tastes different from beer in a can. Be forewarned: if you're a six-pack enthusiast, you're not going to like the explanation. When you sip a can of your favorite brew, you are savoring not only fermented grain and hops but just a hint of the same preservative that kept the frog you dissected in 10th-grade biology class lily-pad fresh: formaldehyde. What is formaldehyde doing in beer? The same thing it's doing in pop and other food and drink packaged in steel and aluminum cans: killing bacteria. But not the bacteria in the drink, the bacteria that attacks a lubricant used in the manufacture of the can. Notre Dame's Steven R. Schmid, associate professor of aerospace and mechanical engineering, is an expert in tribology – the study of friction, wear and the lubrication – applied to manufacturing and machine design. The co-author of two textbooks, Fundamentals of Machine Elements and Manufacturing Engineering and Technology (considered the bible of manufacturing engineering), Schmid has conducted extensive research on the manufacturing processes used in the production of beverage and other kinds of cans. Schmid explains that back in the 1940s, when brewers and other beverage makers began putting drinks in steel (and, later, aluminum) cans, the can makers added formaldehyde to a milk-like mixture of 95 percent water and 5 percent oil that's employed in the can manufacturing process. The mixture, called an emulsion, bathes the can material and the can-shaping tooling, cooling and lubricating both. Additives in the oil part are certain bacteria's favorite food. But if the bacteria eat the emulsion, it won't work as a lubricant anymore. So can makers add a biocide to the emulsion to kill the bacteria. Before a can is filled and the top attached, this emulsion is rinsed off, but a small residue of the oil-water mixture is inevitably left behind, including trace amounts of the biocide. The amounts remaining are not enough to be a health hazard, but they are enough to taste, and the first biocide used back in the 1940s was formaldehyde. In the decades since, can makers have devised new formulas for emulsions, always with an eye toward making them more effective, more environmentally friendly and less costly. But because formaldehyde was in the original recipe, people got used to their canned Budweiser or whatever having a hint of the famous preservative's flavor. For this reason, Schmid says, every new emulsion formula since then has had to be made to taste like formaldehyde, â€Å"or else people aren't going to accept it.† Extensive tests are run to make sure the lubricant and additives taste like formaldehyde. â€Å"It's not that it tastes okay. It's just what people are used to tasting,† he says. (Miller Genuine Draft and similar brews, Schmid says, use biocides that have no flavor.) The formaldehyde flavor legacy is one little-known aspect of can-making. Another involves the smooth coating applied to the inside of cans. The rinse cycle that attempts to wash off the emulsion also aims to remove particulate metal debris that forms on the metal's surface during the bending and shaping of a can. Like the emulsion, some of the microscopic debris always remains after rinsing. Unlike the emulsion, it can be dangerous to swallow. To keep powdered metal out of a can's contents, Schmid says, manufacturers spray-coat the inside with a polymer dissolved in a solvent. When the can is heated, the solvent boils away, leaving only the protective polymer coating. The coating not only plasters any microscopic debris to the can wall and away from the food, it keeps the food from interacting with can material, an especially important consideration with steel cans. â€Å"Say you've got tomato soup in this steel can. You don't want that acidic soup corroding your can. It would kill your can, and the can would adulterate your food,† Schmid says. â€Å"It's also why you're advised that when you go camping and you have Spaghettios you don't cook them in the can, because the polymer will degrade and you're going to be eating polymer.† (Industry sources tell Schmid that the typical consequences of such a culinary blunder are headaches and constipation.) Schmid says can manufacturers are forever searching for ways to improve efficiency in their struggle to stay price competitive with plastic and glass bottles. A single can-tooling machine can form 400 cans a minute. In a typical process, all but the top is shaped during a single stroke through a disk of aluminum or steel. The top, seamed on after filling, is made of a more expensive aluminum alloy, rich in magnesium. The added ductile strength of the magnesium is necessary so another machine can mash down a pillar of the metal to form the rivet that attaches the pop top. Today's beverage cans are â€Å"necked† near the top for a reason. The narrower-diameter means less of the expensive lid alloy is needed. It saves a minuscule fraction of a cent per can, but it adds up, Schmid says. â€Å"In this country alone we use about a can per person per day, so you have to make 250 million cans per day. It's an amazing thing to watch these machines kick out these cans.† Rivet is likely a separate part from the tab. It should be strong enough to attach the tab to the can and to ensure that it does not break when the can is opened. Lip on top of can prevents liquid from flowing down the side of the can. Bottom is indented to enable stacking even when the tab has been opened. The indent provides the necessary room for the open tab. For recycling purposes, pop cans can be neatly compacted flat, and are easy to transport using a wide range of containers. Rivet is a separate piece which connects the tab to the can top. Top of the pop can is stamped with words such as â€Å"recyclable† and â€Å"return for refund†. Thus, the alloy of the top must be soft enough to allow this stamping to occur. Aluminum costs more than steel, and the price has been rising. Steel â€Å"minimills† now have continuous casting processes that make sheet steel thin enough to form seamless cans. And there is competition from other materials as well. â€Å"We h ave to find ways to make cans lighter and lighter to keep fending off polymers, steel and glass. Lighter cans means lower prices to the consumer, who's then more likely to buy cans off the grocery shelf instead of two-liter bottles or glass.† ALCOA's answer is lightweighting, designing cans to use the thinnest aluminum possible within the constraints of strength and appearance. In 1993, Americans recycled 59.5 billion aluminum cans, 3 billion more than in 1991, and raised the national aluminum can recycling rate to 2 out of every 3 cans. Aluminum can recycling saves 95% of the energy needed to make aluminum from bauxite ore. Energy savings in 1993 alone were enough to light a city the size of Pittsburgh for 6 years. Special pallets and stacking techniques are used to protect can bodies from crushing stresses and to enable quick and efficient loading into the filling machine line. The first beverage can, filled by a brewer in Newark, New Jersey in 1935, weighed three ounces. Today, an aluminum beverage can weighs one half ounce – 600% less than the original beverage can. Can manufacturers strive to do even better through a process called â€Å"light weighting†-the use of lighter can ends and thinner body walls. Using less material at the beginning of the manufacturing process results in a more effective means of creating safe, reliable, performance-driven packaging. This results in less waste once the packages' contents have been consumed. It also saves manufacturers money – an added incentive. 3). The diameter of the bar is 12.7 mm. Its radius is half the diameter. Therefore, its radius can be calculated to be (12.7 mm)/ 2 = 6.35 mm. By applying the conversion factor that 1000 mm = 1 m, this radius can also be expressed as (6.35 mm) * (1 m / 1000 mm) = 6.35 x 10-3 m. The bar has a cross-sectional area given by the following formula: Cross-sectional area = ?r2 where r is the radius of the steel bar. Using this formula, the cross-sectional area of the bar can be calculated to be: Cross-sectional area = ?(6.35 x 10-3 m)2 Cross-sectional area = 1.266768698 x 10-4 m2 (Cross-sectional area = 1.27 x 10-4 m2 when significant figures are applied). Gravity applies a force to the bar proportional to the bar's mass. This force is given by the formula: Force due to Gravity = (Mass of object) * (Acceleration of Gravity) If we assume that the steel bar is located at the surface of the earth, the acceleration of gravity is approximately 9.8 m/s2 at this elevation. Therefore, the force applied to the bar by gravity can be calculated to be: Force due to Gravity = (7000 kg) * (9.8 m/s2) Force due to Gravity = 68600 kg*m/s2 (Force due to Gravity = 70000 kg*m/s2 when significant figures are applied) The stress placed on the bar is given by the following formula: Stress = (force) / (unit area) Therefore, the stress placed on the bar can be calculated to be: Stress = (68600 kg*m/s2) / (1.266768698 x 10-4 m2) Stress = 541535326.2 kg/(m*s2) (Stress = 500000000 kg/(m*s2) when significant figures are applied) The steel bar has a modulus of elasticity of 205,000 Mpa. 1 Pa is defined to be equal to 1 kg/(m*s2). Using the conversion factor that 1 x 106 Pa = 1 Mpa, 1 Mpa is defined to be equal to 1 x 106 kg/(m*s2). We can therefore express the modulus of elasticity of the steel bar in Pa as (205,000 Mpa) * (1 x 106 Pa / 1 Mpa) = 2.05 x 1012 Pa. The strain experienced by the steel bar is the fractional deformation it undergoes when a stress is applied. This strain can be represented mathematically by the following formula: where l represents the length of bar, and ?l represents the change in length of the bar due to the applied stress. The elastic region of the stress-strain curve refers to the portion of the curve in which an increase in stress will cause a linearly proportional increase in strain. Within this elastic region, removal of the stress will cause the strain to be reduced to zero as well. In other words, the material is not permanently deformed, and removal of the stress causes the material to return to its original dimensions. The strain is therefore reversible, or elastic. In the elastic region, therefore, stress and strain can be related by a proportionality coefficient. This proportionality coefficient relating the reversible strain to stress in the elastic region of the stress-strain curve is known as the modulus of elasticity. This modulus of elasticity can be represented mathematically as: Modulus of Elasticity = (Elastic Stress) / (Unit Strain) This equation can be rearranged to solve for the unit strain. This rearranged equation is expressed as: Unit Strain = (Elastic Stress) / (Modulus of Elasticity) Assuming the stress applied to the bar is small enough to ensure that the bar is still operating in the elastic region of the stress-strain curve, we can use the above equation to determine how much the bar will be strained by the load. Mathematically, this solution takes the following form: Unit Strain = (541535326.2 kg/(m*s2)) / (2.05 x 1012 Pa) Unit Strain = (541535326.2 kg/(m*s2)) / (2.05 x 1012 kg/(m*s2)) Unit Strain = 2.641635738 x 10-4 (Unit Strain = 3 x 10-4 when significant figures are applied) This strain is unitless because it represents the fractional deformation of the bar when the stress is applied.

Brief Article Teaches You the Ins and Outs of Disadvantage Essay Samples and What You Should Do Today

Brief Article Teaches You the Ins and Outs of Disadvantage Essay Samples and What You Should Do Today Polygamy refers to a scenario where a man marries more than 1 wife or is every time a guy is living with more than 1 wife at the exact same time. The other disadvantage of polygamy is it will result in extra marital affairs in the marriage that is quite dangerous. From the above discussion, it can clearly be seen that polygamy has many challenges and it's not a really favorable issue to do. This essay will initially suggest that reduced labour costs is the principal benefit for these companies, while bad publicity as a result of Human Rights abuses is the principal drawback. Additional Nestle's human resources are some of the the leading competitive factors it has. One of the benefits of Nestle is it is a top general player in the bigger market, playing a major role in various market segments, including in food and beverage sector, together with in commercial products in add ition to in the pharmaceutical industry. IELTS benefits and disadvantages questions normally supply you with a statement and request that you comment on the benefits and disadvantages of that statement. The End of Disadvantage Essay Samples For example, one can opt to pick the topic of after school jobs for children. To begin with, children are more inclined to develop into fluent in another language should they begin to learn it at a youthful age. Among the troubles with teaching another language to young children is the fact that it is often difficult to keep their attention since they don't have any interest within it. In truth, it has been demonstrated that children who learn another language at a youthful age have better problem solving and critical thinking skills, improved memory, and have a tendency to be more creative. You can readily find essay writing services which could write for you at cheap prices. This essay is dealing with the a variety of pros and cons of selecting a low-cost essay services. Pros of choosing a low-cost essay service Availability Everywhere on the web, you can get one or other essay support. Summary Hiring an affordable essay service may be correct option for students at one time crunch. Such last-minute searching never becomes futile, which results in unfinished essay assignments and ends in a poor grade. Generally, a student is only going to have to buy a couple of model essays until they know how to write and reference work themselves. It's somewhat like a comparison essay. Our sample essay has a very simple but great introduction in which it demonstrates that the examinee has knowledge of this issue and clearly states the writer's position to prepare the remainder of the essay. What will have to be included in your essay will differ depending upon your level. Thus choosing an expert for doing your essays could be the correct option. Thoroughly read via the essay and find out how it ties in with your initial essay title or question. If you're writing the benefits and disadvantages essay in an exam situation, attempt to adhere to a topic you understand. Question 1 simply asks us to talk about the advantages and pitfalls. People today will need to know how to take into consideration the advantages and pitfalls of the choices they make in life daily. Having a car may also bring some drawbacks. Make certain you read the question carefully so you know whether you should simply talk about the benefits and disadvantages or in case you also should say if the advantages outweigh the disadvantages. Be balanced ad make certain the benefits and disadvantages are comparable in strength. If you previously don't forget the advantages and pitfalls discussed, select the best ones and add on any new and intriguing ones which you run into in your research. If you're asked What are the pros and cons of. Disadvantage Essay Samples - the Conspiracy The primary advantage of having a vehicle is it offers the freedom to travel. Private car is costlier than the public transportation. To the contrary, having a vehicle is extremely costly. Ultimately, owning a private car provides someone the freedom to relish his time during the journey when it is quite impossible on a public bus. Participating in a group procedure can be quite rewarding for members of the group. Therefore, in order fo r each individual to never feel the pressure of societal conformity, it's important that schools keep a feeling of diversity. As a consequence, students do not need to consider their tasks and learn very little. Learning another language also can help to improve overall cognitive abilities. The Bad Side of Disadvantage Essay Samples To the contrary, private vehicle ownership has many demerits also. When people are on the job, they are always surrounded by other people, but at home, an employee is probably going to be alone most the moment. When employees work away from their homes, the expense of running the company comes down. If a worker is not there, others might have to step in. The Lost Secret of Disadvantage Essay Samples Each paragraph starts with a new significant point that's then explained. An outline makes it simpler to arrange the circulation of the paper. If needed, revise your work dependent on the outcomes of the proofreading and take pride in the simple fa ct which you have both learned how to compose an academic essay and gained valuable understanding of the subject you're writing about. A well-structured essay has a superior introduction, body paragraphs that are simple to follow and connect with each other, and a great conclusion.

The Creation Of A Cosmopolitan Society Essay - 2030 Words

The idea of a unified society, living peacefully with all the differences in the world stems from Kwame Appiah’s book Cosmopolitanism (2006). Thus, the idea of cosmopolitanism is that everyone is a â€Å"citizen of the world† (Appiah 14), which means, no matter the cultural differences everyone is to live within the same standards and guidelines of coexistence. When evaluating the plausibility of a cosmopolitan society, one should think of the coexistence of different cultures and ways of living. In considering this idea, there is a mass amount of culture clashes, or culture wars, throughout history; however, there are is an extreme amount in historical societies. Furthermore, the issues are found in both different cultures and in different moral codes, or moral judgment. With that said, the ideology of moral judgments throughout history, in order to predict the present and future, shroud the idea of a cosmopolitan world. The example of the creation of the monster in Fr ankenstein (1818) and plays a major role in proving this idea with philosophies from Luther the Reformer (1986), Cosmopolitanism (2006), and It’s Complicated (2014). In Appiah’s initial thoughts, language is the gateway to any society and community. When there are different languages, the people begin to wonder what exactly is being said. In looking at languages in different societies, Kwame Appiah believes that â€Å"vocabulary of evaluation is enormously multifarious† (46). When there is a multitude of differentShow MoreRelatedThe Continent Of Africa, By Thomas Getz s Cosmopolitan Africa1454 Words   |  6 Pagescan fully comprehend just how much the colonization of Africa changed it forever, both for the better and the worse. The many reasons as to the â€Å"how and why† Africa was shaped into what it has become today can be seen within Thomas Getz’s book, Cosmopolitan Africa. 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Nevertheless, they tried to calm everyone in France by organizin g charity events such as birthday parties for sick children