The Case Of Brian Keith Rose Term Paper Example | Topics and Well Written Essays - 1250 words

The Case Of Brian Keith Rose - Term Paper Example Rose was initially charged in State court in Baltimore County though evidence in the form of a partial fingerprint was thrown out by a Baltimore County Judge. The United States Attorney took over the case after Judge Souder’s October 2007 ruling. Souder’s ruling was based on the fact that technique used to analyze the fingerprints was not scientifically reliable. State charges against Rose were then dropped and the case was re-filed in the US District Court (Brendan, 2010).MD Rule 5-702 requires that latent fingerprint identification methods rest on reliable factual foundations and in this case the ACE-V method used was not proved to be reliable and factual in State Court. Initially no latent fingerprints were identified by the crime lab and homicide Detectives suggested several names of suspects to the crime lab. At that time these names, including Brian Rose, were compared to the latent print recovered. Both sides in this case requested that the Court determine the re liability of the ACE-V methodology, hence allowing or disallowing the latent prints as evidence. The defendants contended that the ACE-V is not a method which has been scientifically tested, thus the error rate is unknown. Without an error rate it is impossible to know the reliability of this methodology. A fingerprint is in essence a reproduction of friction ridge formations of the surface of a finger, left by the transfer of oil or other matter between the finger and the object. These ridges form before birth.

Medieval Universities Essay Example for Free

Medieval Universities Essay The English universities were one of the most significant creations of Medieval England. The scholars who attended eitherOxford or Cambridge Universities set an intellectual standard that contrasted markedly with the norm of Medieval England. Oxford University came into being some 20 years before Cambridge University. The church had a major impact at Oxford. The town came within the diocese of Lincoln, yet Oxford had its own archdeaconry. It was the input of the church that led to the first recorded student/university authority clash at Oxford. The universities led to major growth in both Oxford and Cambridge as towns and both became important centres. No-one is quite sure why Oxford was chosen as the town for England’s first university – however, the town had a number of distinct advantages. Oxford was the centre of communications within its region and both royalty and foreign scholars frequently visited the town. There were also many religious houses/centres around the town and the agricultural land was rich and farming did well at this time. Oxford was considered to be in a civilised part of England – it was near to London and getting to Europe was not necessarily a major journey. Oxford also held strategic importance, which led to the building of a castle there. In 1167, a quarrel between Henry II and Thomas Becket led to a temporary ban on English scholars going to study in France. For whatever reason, scholars and academics gathered in Oxford to continue with their work – fifty of them. As journeying to the university in Paris was not allowed, more scholars and academics arrived in Oxford. Sometime after 1167 Giraldus Cambrensis visited Oxford and started teaching there. He taught three times a day. He took poor students for lectures; he then taught academics from different faculties, and lastly he taught knights and the likes. His clientele became larger than the ‘normal’ monastic or cathedral school. In 1180, Prior Philip of St. Frieswade, Oxford, recorded that a scholar had left his family in York to study at Oxford. Within twelve years, the importance of a good education was clearly having an impact. In 1192, Richard of Devizes wrote â€Å"Oxonia vix suos clericos, non dico satiat, sed sustenat.†| Richard was basically stating that there were so many scholars in Oxford that the town could barely feed them. By 1209, it was estimated that there were 3,000 students in Oxford. It was also in 1209 that students in Oxford started to migrate to Cambridge. This occurred after some students killed a woman in Oxford. At this time, King John and Pope Innocent III were quarrelling over a new Archbishop of Canterbury. Innocent put England under an interdict. With such worries, John had few thoughts for students in Oxford. He gave his permission for the execution of three students in Oxford involved in the woman’s death. However, in the delay that took pace, the students fled to Reading, Cambridge of Paris. Others followed to Cambridge and by 1284, Peterhouse College was founded. Unlike the great university of its time – the university in Paris – Oxford was not connected to either a cathedral or a religious house. The Sorbonne was supervised by ecclesiastical men while Oxford was supervised by masters, though these were usually in holy orders. Regardless of this, Oxford developed with a degree of practical independence. By the end of what is considered to be Medieval England, the following colleges had been created at Oxford – University College, Balliol, Merton and Exeter. In Cambridge, Peterhouse College was created. Student life in both towns was to transform Oxford and Cambridge. The lifestyle of the students was to frequently bring both universities into conflict with the church.

Tata Motors International Business Strategy

Tata Motors International Business Strategy Tata Motors Tata motors is an Indians largest multi-holding company. It was established in 1945. This company caters to three market segment internationally. The passenger cars, Utility vehicles and commercial vehicles. The company produced the first mini-truck, first light and heavy vehicles and many more firsts in India, being an inventor in their industry. Tata motors has entered into strategic acquisition and joint ventures in its mid stage and launched new products at a rapid pace in various markets. Now a days, Tata motors enjoys the position of being Indians leading auto-mobile manufacturer with increasing presence in Europe, South East Asia, Africa, Australia, and the middle East with a total more of US $ 4 billion. The company focuses on providing customers the best value for their money meets European standards and environmental regulations through their advance technologies. A newer version of the car, named Indica V2, was a major improvement over the previous version and quickly beca me mass favourite. In United Kingdom a badge engineered version of this car was sold (Rover City Rover), which was big failure and declared the worst car ever driven on BBC Top Gear show. Tata motors also successfully exported large quantities of the cars in South Africa. The success of Indica in many ways marked the rise of Tata Motors. The proposal will include the current position of Tata motors and its international expansion, what are the things they have done to be successful? What are their weaknesses? How can they improve. Marketing factors effecting Tata motors. The companys Swot analysis, its Boston matrix, Its market planning and strategy will all be included in the proposal. (Yadong Lou 1999) suggests International Expansion is a process by which regional economies, societies, and cultures have become integrated through a global-spanning network of communication and trade. This report would not only define how Tata motors and tea expanded internationally but also what are the reasons of organisations to globalise, how complex this expansion is actually as it may seems to be mouth watering because of high profits and economies of scale but in practise it is not that easy. It is important to understand why Tata Motors did expand, though companies in the international arenas have experienced many benefits, however the complexity of the international business also brings a lot of risk with it. For Tata motors to justify international business activities, therefore, relied on the below reasons. International customers : Tata motors wanted to continue serving his customers who became international. To make them feel the same as when they were in the home country. New expanded market : New different market was available outside their home country; additional resources including management, skills just to name the few. Increase sales: Tata motors wanted to increase the sales of his vehicles. Because of this they had to go into markets where consumers had a very strong purchasing power. And also to industrialise courtiers where products such as heavy commercial vehicles were needed or demanded. Generally international expansion is not easy as it may sound since many factors have to be taken in to account. For example Tata motors started from India with an international view but faced problems like political new countrys legislation and laws. For example Nanos launch in October maybe delayed due to political issues related to plant land. Reference Free research report for 1Q 09 results. It should be taken in to account that Plant of Tata motors in India would be much more cost beneficial rather than a plant in Europe as there would be a difference in minimum wage laws. So to decide where a plant should be build lot of thinking is required. Economic factors were also taken in to account, since different countries would have different per annum income of the people hence to produce cars that would be affordable. Recession has not hit the third world countries as such but has hit European countries to much more effect so different international strategy is required. One of the reasons of Tata motors success is that they faced such challenges successfully. As it is shown above Tata motors expanded with consideration of a lot of factors and proved to be successful. To understand the concept it is important to know how did they market their products, what their planning was? What marketing strategy did they use. Marketing: Marketing is the process by which companies create value for customers and build strong customer relationships in order to capture value from customer in return. Tata motors market their product differently when producing in different regions. (Gary Armstrong 2009) Market targeting is a process of evaluating each market segments attractiveness and selecting one or more segments to enter. Segmentation is dividing into distinct groups of buyers who have distinct needs, characteristics, or behaviour and who might require separate products or marketing programmes. As the Tata Group is a worldwide concern operating in more than 100 countries with thousands of products, there is almost no industry which seems to be untouched by the group. The focus of Tatas market entry will be UK. There were several reasons for selecting UK as the target market. These favourable factors were the status of India as the favourable economic agent, UK Car market dynamics and potential, language similarity. The other countries which were considered as potentially attractive were: the USA the largest market size in the world, Russia emerging market with significant sales potential. The option of the USA as target market was declined due to extremely high quality require ments and other non-tariff barriers which make it hard for a new entrant to enter this market ÂÂ   (Roger A. Kerin 1994) Through strategic planning, the company decides what it wants to do with each business unit. Market planning involves deciding on market strategies that will help the company attain its overall strategic objectives. A detailed marketing plan is essential for each business, product or brand. The plan begins with an executive summary, which quickly overviews major assessments, goals and recommendations. Tata Nano is the cheapest car in the world. It is sold in home country India around Rs 1-lakh i.e. approximately USD 2000. Tata Nano was first launched in India on 1st April 2009 and expected to be in Indian market by July 2009. Since launching, it has created a huge buzz all over India. Within the first two days of lunching, it has received 5500 booking. The figures keep increasing every day since the launching. What makes Tata Nano so cheap? Basically, by making things smaller, lighter, do away with superficial parts and change the materials wherever possible without compromising the safety and environmental compliance. It is said that Tata Nano has better mileage than Toyota Prius and same gas emission as a scooter. The planning of this car is that it will be imported to Malaysia in parts by Tata motors and is assembled in its two assembly plants. There are forty sale offices in Peninsular Malaysia nationwide. All Tata Nano cars will be distributed through these sale offices only. Order can be made vide these distribution centres or its web site. (Robert.E) Market strategy: Market strategy outlines the broad marketing logic by which the business hopes to achieve its marketing objectives and the specifics of targets markets, positioning, and marketing expenditure levels. How will the company the company create value for customers in order to capture value from customers in return? This section also outlines specific strategies for each marketing mix element and explains how each responds to the threats, opportunities and critical issues spelled out earlier in the plan. Product: Over the years Tata Motors have been successful in creating their brand image especially they use some famous stars as their spokesman. Other important marketing strategies are such as the packaging, innovations, and quality control. Tata Motors provide many innovative features to attract car lover. One of these innovations is the Tata Safari 4X4 Decor that has Reverse Guide System. A weather-proof camera is fixed to the rear car to help the driver while reversing the car. Pricing strategy: There are number of factors to determine the price of the car. Factors include like market condition for example it cannot be too low or too high with the prices of same vehicles of the competitors. Giving discount every month and special promotion for certain type of vehicle also one of the strong strategy use by Tata Motors. Discount can be made from Companys profit or from dealers profit at certain range. Place: It includes the company activities that make the product available to target customers. Channels of distributions, locations and sales is usually adopted. Vehicle should be distributed in a systematic way, from the plant to dealership and to end user. Tata Motors has an extensive dealer network covering Indian and International markets. Wherever you are, there is a Tata Motors Sales and Service dealership close to you Promotion: Personal selling: There is cold calling to customer, this is done by collection of customer data bases done by the sales officers. Hence there is minimum personal selling involved. Advertising is any paid form of non personal presentation and promotion of ideas, goods or services by an identified sponsor. It is designed to promote the sale of a product or service. The various media that can be used for advertising are T.V, Newspaper, Magazines, Hoardings, and Internet etc. Tata Motors is responsible for the advertising of its products. The dealer conducts point-of-purchase displays to advertise the products. The advertisements done by the Co. help the dealer to capitalize on the market. Advertising is often used to make consumers aware of a products special low price or its benefits. But an even more important function of advertising is to create an image that consumers associate with a product, known as the brand image. The brand image goes far beyond the functional characteristics of the product. The products of Tata Motors have many special characteristics to them, but when consumers think of it, they not only think of its features, but they may also associa te it with quality, performance, and class. All of these meanings have been added to the product by advertising Sales promotion is a short term incentive to encourage the purchase or sale of a product or service. Its purpose is to supplement and coordinate advertising and personal selling. It is designed to persuade consumers to purchase immediately by providing special incentives to them for example extra product, prizes or gifts. During festivals such as diwali customers are given festive discounts. Public relations is building good relations with the companys various publics by obtaining favorable publicity, building a good corporate image, and handling or heading off unfavorable rumors, stories and events. The Co. takes serious measures to maintain good public relations. The Co. follows business ethics to ensure that the customer is satisfied and receives good service whenever and wherever he desires.(Edmund Jerome McCarthy). SWOT ANALYSIS: SWOT analysis helps a firm in strategy formulation, in responding strategically to the environment, the goal is to reduce identified threats and take advantage of the best opportunities. The following is the SWOT analysis of Tata motors Strengths The internationalisation strategy so far has been to keep local managers in new acquisitions, and to only transplant a couple of senior managers from India into the new market. The benefit is that Tata has been able to exchange expertise. For example after the Daewoo acquisition the Indian company leaned work discipline and how to get the final product right first time. The company has a strategy in place for the next stage of its expansion. Not only is it focusing upon new products and acquisitions, but it also has a programme of intensive management development in place in order to establish its leaders for tomorrow. The company has had a successful alliance with Italian mass producer Fiat since 2006. This has enhanced the product portfolio for Tata and Fiat in terms of production and knowledge exchange. For example, the Fiat Palio Style was launched by Tata in 2007, and the companies have an agreement to build a pick-up targeted at Central and South America. Weaknesses The companys passenger car products are based upon 3rd and 4th generation platforms, which put Tata Motors Limited at a disadvantage with competing car manufacturers. Despite buying the Jaguar and Land Rover brands (see opportunities below); Tata has not got a foothold in the luxury car segment in its domestic, Indian market. Is the brand associated with commercial vehicles and low-cost passenger cars to the extent that it has isolated itself from lucrative segments in a more aspiring India? Opportunities In the summer of 2008 Tata Motors announced that it had successfully purchased the Land Rover and Jaguar brands from Ford Motors for UK Â £2.3 million. Two of the Worlds luxury car brand have been added to its portfolio of brands, and will undoubtedly off the company the chance to market vehicles in the luxury segments. Tata Motors Limited acquired Daewoo Motors Commercial vehicle business in 2004 for around USD $16 million. Nano is the cheapest car in the World retailing at little more than a motorbike. Whilst the World is getting ready for greener alternatives to gas-guzzlers, is the Nano the answer in terms of concept or brand? Incidentally, the new Land Rover and Jaguar models will cost up to 85 times more than a standard Nano! The new global track platform is about to be launched from its Korean (previously Daewoo) plant. Again, at a time when the World is looking for environmentally friendly transport alternatives, is now the right time to move into this segment? The answer to this question (and the one above) is that new and emerging industrial nations such as India, South Korea and China will have a thirst for low-cost passenger and commercial vehicles. The range of Super Milo fuel efficient buses are powered by super-efficient, eco-friendly engines. The bus has optional organic clutch with booster assist and better air intakes that will reduce fuel consumption by up to 10%. Threats Other competing car manufacturers have been in the passenger car business for 40, 50 or more years. Therefore Tata Motors Limited has to catch up in terms of quality and lean production. Sustainability and environmentalism could mean extra costs for this low-cost producer. This could impact its underpinning competitive advantage. Obviously, as Tata globalises and buys into other brands this problem could be alleviated. Since the company has focused upon the commercial and small vehicle segments, it has left itself open to competition from overseas companies for the emerging Indian luxury segments. For example ICICI bank and DaimlerChrysler have invested in a new Pune-based plant which will build 5000 new Mercedes-Benz per annum. Other players developing luxury cars targeted at the Indian market include Ford, Honda and Toyota. In fact the entire Indian market has become a target for other global competitors including Maruti Udyog, General Motors, Ford and others. Rising prices in the global economy could pose a threat to Tata Motors Limited on a couple of fronts. The price of steel and aluminium is increasing putting pressure on the costs of production. Many of Tatas products run on Diesel fuel which is becoming expensive globally and within its traditional home market. These all factors held lot of importance for Tata motors to expand inte rationally. (Peter Jackson 1982). The strategic positioning of an organization admits the inventing the desired future position of the organization on the groundwork of present and predictable exploitations, and the constructing of programs to realize that positioning. Strategic positioning can be analysed by Porters SWOT analysis approach and Boston Consultants Group (BCG) Matrix (See Figure 2). BCG Product portfolio matrix indicates the Cash Cows refers to the industries with a high market share and low growth such as Power (Energy), Steel and Oil Gas. Dogs refer the industries with low market share and low growth such as Tata Sky, Tata Tele services etc. the stars shows the industries such as Automotive, Tea, and Chemicals with high market share and high growth. However; the each industry position in the matrix is an opportunity open to business (Sutherland and Canwell, 2004, p 16; Stacy, 1993, pp 48-49, Thompson, 2002). For example; in cash cows, Tatas acquisition with Corus (UK) and gained a big share of market . In stars Tatas acquisition of Daewoo (Korea) and achieved a high market share in the Korean automobile market. Figure: 2 Tata motors takes in to account the value proportion of what is proposed in the market and also make sure that target customers segments also are addressed by the value proposition. For example; the Tatas recent announcement, of launching the cheapest cars for the Indian market for the target market of two wheeler owners such as motorcycle and scooter. Tata motors has developed effective distribution channels to reach the customers and to develop relationship with them (David Mercer)It is very important for a company like Tata motors which is a global company that it considers its environment before beginning the marketing process. In fact, environmental analysis should be continuous and feed all aspects of planning. The macro environments that can affect Tata motors include political, economical, Socio cultural and technological factors. Political arena: Political arena can have a lot of influence upon the regulation of businesses and also one the spending power of the consumers and other businesses. The political factors that can affect Tata motors are, strong tax incentives for inbound investors, different countries would have different laws so company has to take in to account what they are dealing with, strong motivation and trust, there was a negative effect on the IT industry after 2009 because the governments initiative of Tax holiday under STPI expires (Thinking street 2007) In order to be successful marketers need to consider the state of a trading economy both in the long and short term. It would be essential when Tata motors plan to do international marketing. As interest rates, Inflation, employment level per capita and gross domestic product per capita would all play important roles. Tata motors would also be affected by competitive labour cost model and highly mobile work force. Social and cultural factors: Social and cultural factors influence the business varies from country to country. It includes factors like, dominant religion in the area? The attitudes to foreign products and services? How much effect language has upon the diffusion of products onto markets. Technology: Technology is one thing which is very important in the car industry. Since technology will give Tata motors a competitive advantage over others and is a major driver of globalisation. For example technology can allow the products to be made cheaply hence reducing cost and increasing revenues, It offers new innovative products to the consumers that will make sure that the product dont get obsolete, Tata motors internet site provides all the information about the cars, 3d view and videos can be seen making information easily accessible to the consumers. It also adds the concept of customer relationship manager who will be in touch with the consumers even after the car has been purchased. Thus consumer will feel themselves part of the organisation. So to be competitive Tata motors have to do strong R D culture and facilities, strong tie-ups with western technology companies and be adaptive to new technologies. The various motives behind buying an automobile are Need, Prestige, Comfort, Fashion, Jealousy and Novelty. The R D Department continuously strives to bring new innovations in their product. Tatas have an industrial experience of over 100 years and they are well known with the Psychology of Indian customers, who desire more at less price. This experience has helped them to develop products which fulfil the expectations of Indian consumers. Porters 5 Forces Analysis: Porters 5 forces analysis deals with the factors outside an industry that influence the nature of competition within it. According to Porter (1985), competition is at the core of the success or failure of firms. The intensity of rivalry will determine the extent to which competing companies will give away the value that they have created. They will either pass this value to the buyer in lower prices or it will be absorbed by higher costs of competing (Porter, 1991). Michael Porter has provided a framework that models an industry being influenced by the five forces which will give below. That helps the strategic business manager to develop an edge over rival firms as this model helps in understanding the industry context in which firms operate. Figure 1 shows the five forces model: Barriers to Entry: Time and cost of entry: When launching a product time is the most essential thing. The launch of NANO is a good example since demand for small cars is on the rise of the market. Cost of entry actually means the initial capital that would be required to setup a new firm is very high. Knowledge and technology: It is from knowledge and technology that firms get competitive advantage over others. Tata motors have great knowledge and technology because of the experience they had and also from the fact that they have done few mergers and acquisitions over the last few years. Product differentiation and cost advantage: The new products should be attractive and different to be accepted by customers. Attractiveness can be measured by feature, price etc. NANO car price is one of its things which are very attractive for customers at the moment. Buyers: Switching costs: In the case of NANO the switching cost from bike to car is high. Thus increasing the demand of the car. Number of customers: Few buyers can dictate their terms. The bargaining power of buyer is higher if there are a lot of choices available to the buyers. In the case of NANO the price tag that it has got no compromise have been done at front. Brand Image: The brand image of Tata company is one of their strength in the market. Suppliers: Number of size of suppliers: Suppliers give raw material to the company, if there are few suppliers then they can set high prices to capture the profit. The NANO car has 128 suppliers in all. Unique product/service: Suppliers industry is dominated by few substitutes. Some parts of the Tata motor cars are obtained from few suppliers and limited substituted are available to their product. Competitive Rivalry: Price competition: Advertising battles can increase the demand in the industry, but may be costly to small competitors. NANO is the only player so it has the price competition but as the Maruti and Honda are planning to launch a car in the same segment so price competition will start. Product quality and number of diversity of competition also effect the competitive rivalry. (Charles Hill 2009)Strategies can be made but the real thing is to make sure that theory works in practicality, for this purpose monitoring and evaluation system is used for an organisation to have a check on policies and procedures through out the time. If an organisation does not care about how well it is doing or about what impacts it is having, why bother to do it at all? Monitoring and evaluation allows you to assess the quality and impact of your work, against your action plans and your strategic plan. In order for monitoring and evaluation to be really valuable, you do need to have planned well Conclusion: Given the intensity of competition and fast changing business environment in the segment, the world over, the acquisition, undoubtedly, is a strategic fit for Tata motors, as far as its globalization gambit is concerned. And, the number one spot, which it is aiming at, may not be far away. But of course, it would have to put its best cup forward. The hybrid strategy is used by the company in various industries, it involved a higher degree of organisational excellence and integration of all the departments. Here the strategy of the group is to maintain the cost of raw materials as lowest as possible and to achieve the lowest cost of final products. The group also invested a huge amount in research and development in order to achieve the highest degree of quality at the lowest price.

Andy Warhol :: Biography Biographies

andy warhol1 Biography On August 6, 1928, Ondrej and Julia Zavacky Warhola gave birth to their son, Andrew Warhola, in Forest City, Pennsylvania. Ondrej and Julia came to the United States from Czechoslovakia where he worked as a construction worker. The family later moved to Pittsburgh where Andrew suffered from several nervous breakdowns throughout his teen-aged years. Overcoming this he graduated from high school and enrolled in the Carnegie Institute of Technology where he graduated in 1949. After graduation he lived in several Manhattan apartments and met Tina Fredericks, the art editor of Glamour Magazine. His early jobs for the magazine were several drawings. Andy drew shoes as an assignment in 1949 for an article named, â€Å"Succes is a Job in New York,† and the credit mistakenly read, â€Å"Drawings by Warhol.† Andy soon changed his surname to Warhol. Andy’s other work included drawings for advertising in various magazines, such as Vogue and Harper’s Bazzar, book jackets, and holiday greeting cards. As his work grew so did his fame, and in 1952 his first solo exhibition was held at Hugo Gallery featuring his drawings to illustrate stories by Truman Capote. Soon he was designing sets for theatre groups, publishing his own books, and beginning to paint. In 1960 his first paintings were based on comic strips. Using the Dick Tracy comic strip, he designed a window display for Lord and Taylor. At this time major art galleries around the world were beginning to notice his work. In 1962 his paintings of dollar bills and Campbell soup cans were included in an important exhibition of pop art, The New Realists, which was held at Sidney Janis Gallery in New York. After three years of painting Andy dived into a new medium of work and began making his first film with his assistant Gerald Malanga. He also produced am album for the band, â€Å"The Velvet Underground and Nico.† He was working with multimedia and a show soon developed, which featured â€Å"The Velvet Underground and Nico† center stage with Andy’s films projected while colored lights of images fell over the band. Because of the publicity from the show more of Andy’s films began to be seen and shown in commercial theatres. On June 3, 1968 Andy was shot by actress, Valerie Solnis, who appeared in Andy’s movie, â€Å"I, a man.† He survived the shooting after spending two months in the hospital.

IELTS Essay On Fast Food

Modern habits and lifestyles demand that we achieve many more goals and targets every day. Our iPhone, tablet, GPS and laptop enable us to communicate instantly, get instant answers and have access to instant information. We live very fast lives and many of us want this to extend to our eating habits. Fast food allows us to eat ‘tasty’, economic, convenient meals in a very short time. This is a vexing problem for health professionals and governments globally because, despite advances in scientific research, which tells us how bad a poor diet is for our health, the incidence of obesity is reaching epidemic levels in parts of the world, such as America, Europe and even parts of Asia, and much of it is due to an increased consumption of fast food.Disregard for the advice of health professionals is a malaise that can be directly linked with our modern world and its stressfully quick lifestyle and the highly successful, perhaps too successful, marketing and production of high fat, high sugar, low-nutrient food.What can a government do? They can manage their system of taxation to encourage the provision of healthy cafes, restaurants and fast food outlets. Conversely they can ‘punish’ unhealthy fast food companies with heavier taxation. They can also change the law with regard to the amount of sugar and fat that is allowed in prepared foods.With a determined and sustained campaign to improve people’s awareness and understanding of the dangers of fast food, authorities might do much to ameliorate the situation. However longterm and long-lasting dietary change would need to be part of a wider campaign to promote not just ‘slow' healthy food but a slower pace of life generally.

Colloid Examples in Chemistry

Colloid Examples in Chemistry Colloids are uniform mixtures that dont separate or settle out. While colloidal mixtures are generally considered to be homogeneous mixtures, they often display heterogeneous quality when viewed on the microscopic scale. There are two parts to every colloid mixture: the particles and the dispersing medium. The colloid particles are solids or liquids that are suspended in the medium. These particles are larger than molecules, distinguishing a colloid from a solution. However, the particles in a colloid are smaller than those found in a suspension.  In smoke, for examples, solid particles from combustion  are suspended in a gas. Here are several other examples of colloids: Aerosols foginsecticide spraycloudssmokedust Foams whipped creamshaving cream Solid Foams marshmallowsStyrofoam Emulsions milkmayonnaiselotion Gels gelatinbutterjelly Sols inkrubberliquid detergentshampoo Solid Sols pearlgemstonessome colored glasssome alloys How to Tell a Colloid From a Solution or Suspension At first glance, it may seem difficult to distinguish between a colloid, solution, and suspension, since you cant usually tell the size of the particles simply by looking at the mixture. However, there are two easy ways to identify a colloid: Components of a suspension separate over time. Solutions and colloids dont separate.If you shine a beam of light into a colloid, it displays the Tyndall effect, which makes the beam of light visible in the colloid because light is scattered by the particles. An example of the Tyndall effect is the visibility of light from car headlamps through fog. How Colloids Are Formed Colloids usually form one of two ways: Droplets of particles may be dispersed into another medium by spraying, milling, high-speed mixing, or shaking.Small dissolved particles may be condensed into colloidal particles by redox reactions, precipitation, or condensation.

Discuss the importance of Human resource management (HRM) alongside the recruitment needs of a business The WritePass Journal

Discuss the importance of Human resource management (HRM) alongside the recruitment needs of a business Introduction Discuss the importance of Human resource management (HRM) alongside the recruitment needs of a business IntroductionCase Study of British Gas The role of human resource managementCase study of Scottish Power The role of Human Resource ManagementThe significance of HRM’s historical developmentHistory of Human Resource managementHuman Resource ManagementRecruitment:Traditional recruitment agencyOnline recruitment websitesHead-huntersIn-house recruitmentOrientation and InductionTraning and DevelopmentReferences:Related Introduction Human resource management (HRM) is the strategic and coherent draw to the management of an organizations most appreciated assets - the people working there who individually and collectively put into the getting of the objectives of the business. The terms human resource management and human resources (HR) have mainly replaced the term personnel management as a description of the processes involved in managing people in organizations. In plain language, HRM means employing people, developing their capacity, utilizing, maintaining and compensating their services in melody with the job and organizational requirement. Harshly Human Resource Management can be described as The comprehensive set of managerial activities and tasks concerned with developing and maintaining a  qualified workforce human resources in ways that contribute to  organisational effectiveness. (DeNisi and Griffin, 2004) Human Resource Management (HRM) is the role within an organization that focuses on staffing of, management of, and providing direction for the people who work in the organization. Human Resource Management can also be performed by procession managers. The Human Resources Management (HRM) tasks include a range of manners, and key among them is deciding the recruitment needs of a business and whether to use sovereign contractors or employ employees to fill these requirements, recruiting and training the best workers, ensure that they are high performers, dealing with performance issues. Activities also include managing your approach to employee remuneration and reparation, employee accounts and personnel policies. Usually small businesses have to carry out these actions themselves because they cant yet afford part- or full-time help. However, they should always ensure that employees have- and are aware of- personnel policies, which conform to current regulations. These policies are often in the form of employee manual, which all employees have. Case Study of British Gas The role of human resource management To control a successful large business involves acquiring, developing and maintaining a wide range of assets. These capitals include materials, buildings, land, equipment, technology and, people. Any establishment needs good workforce who has the right skills to get the company’s aims and objectives. Human resource management (HRM) is the business function that focuses on the people characteristics of an organisation. It is responsible for ensuring that an organisation has the right people to carry its overall business plan. Centrica, the parent corporation of BGS, has to deliver long-standing productivity. Its shareholders expect the business to show a return on their investment by making profits, now and in future. BGS needs to add to these profits. This means time after time meeting the needs of its customers with comparatively priced products and services that give good returns to the company. BGS’s core customer base is housing consumers across the country. These c ustomers suppose to top-class service at fanatical prices. If BGS does not meet this model, the company may lose business to competitor. To ensure customer liking, BGS engineers must have the technological skills to undertake work to the obligatory standard and the people skills to take away good customer service. Through its engineer enrolment team, the British Gas Academy must therefore ensure that the company attracts and retains the best engineer. This involves several harmonizing tasks. It requires setting up to assess the BGS’s future needs for skilled employees. It requires a recruitment and selection programme to bring new people into the company. It requires a training operation to prepare new recruits and existing employees with the right skills. Case study of Scottish Power The role of Human Resource Management People are one of the most important resources used by any organisation. Scottish Power recognises that it is powered by people. Human Resource Management (HRM) is apprehensive with organising and looking after people in the place of work. On a day-to-day basis this includes recruitment, selection, training and development and assessing staff presentation. An important part of HRM is staff planning. This involves getting the right people in the right position at the right point in time. It also involves identifying the numbers of people required to enable the business to operate at full effectiveness. These people need to have the right skills to do the profession. Part of labour force planning therefore involves planning growth opportunities. Growth increases the skills of the current workforce. The energy industry is changing quickly which means it is important to recruit and train people with the ability to carry out new jobs. This is particularly essential in the growing renewable energy sector. Scottish Power aims to offer a positive recruitment and selection experience for every employee and potential employee. Scottish Power is committed to equal opportunities for everyone regardless of factors such as race, sex, age or disability. The significance of HRM’s historical development History of Human Resource management The history of human resources management had startedapproximately end of 19th century when the protecting representatives had come into life form they are all women’s and are only Worried about the defence of rest of the women’s and children effected their harshness of industrial conception had an effected coupled with pressures arising from the extension of the franchise, the power of trade unions and the labour association, and the disturbance of progressive employers, often Quakers, for what was called ‘industrial betterment’. As the role grew; there was some stress between the aim of moral defence of women and children and the needs for higher output. The First World War accelerates change in the growth of personal management with women being recruited in huge numbers to fill up the gaps absent by men going to battle, which in turn meant reaching agreement with trade unions and accepting unskilful women into craftsmen’s jobs and changing manning levels. During the 1920s, jobs of ‘labour manager’ or ‘service manager’ came into being in the business industry and other industries where there was a large industrial unit, to handle absence, recruitment, dismissal and queries over bonuses and so on. Employers’ federations, mostly in engineering and shipbuilding, negotiated general pay rates with the unions, but there were local and regional variations, and it was a lot of scope for disputes. During the 1930s, with the economy started to pick up big corporations in these newer sectors saw the value in improving employee benefits as a way of recruiting, retaining and motivating employees. However, older industries such as textile shipbuilding, etc. which were hit by the worldwide recession did not adopt new techniques, seeing no need to do so because they had no difficulty in recruiting labour. The 2nd World War brought about interests and staff work on a permanent basis at all establishment manufacturing war materials because an extended Ministry of Labour and National Service insisted on it, just as the Government had insisted on voluntary workers in weapon factories in the previous clash. The government saw the specialist personal management as part of the drive for greater efficiency and the number of people in the personnel function grew significantly; there were around 5,300 in 1943. By 1945, employment supervision and voluntary work had become included under the broad term ‘personal management’. Experience of the war had shown that output and productivity could be influenced by employment strategy. The role of the Human function in war time had been mainly that of implementing the rules demanded by large-scale, state-governed production, and thus the image of an emerging profession was very much a bureaucratic one. Following the development of poor industrial relations during the 1960s a Royal Commission under Lord Donovan was set up. Reporting in 19681, it was critical of both employers and unions; personnel managers were criticised for lacking negotiation skills and failing to plan industrial relations strategies. At least in part, Donovan suggested, these deficiencies were a consequence of management’s failure to give personnel management sufficiently high priority. During 1960s and 1970s employment started to develop considerably. At the same time personnel techniques developed started using theories from the social sciences about recruitment and selection, motivation and organisational behaviour etc. Selection testing became extra broadly used, and management of training long-drawn-out. During the 1970s, speciality fields started to develop, with reward and benefits. Around the mid-80s, the term ‘human resource management’ arrived from the USA. The term ‘human resources’ was an interesting one: it seemed to propose that employees were an asset or resource-like machinery, but at the same time HR also lead to highlight employee commitment and motivation. Today’s HR profession encompasses a number of specialist disciplines, including diversity, reward (including compensation, benefits, pensions), resourcing, employee relations, organisation development and design, and learning and development. Most recently, in developing the new CIPD HR Profession Map, the CIPD has defined ten ‘professional areas’ covered by the HR profession. Human Resource Management The Human Resources Management (HRM) now a day’s functions include a variety of manners, and key between them is deciding what staffing needs you have whether to use independent contractor or hire employees to fill those needs, recruiting and training best employees, ensuring they are high performers, dealing with performance issues, and ensuring your personnel and management practices conform to various set of laws. Activities also include managing your move towards to employee benefits and compensation, employee records and personnel policies. The organisation should always ensure that employees have and are aware of personnel policies which conform to current regulations. These policies are often in the form of employee manuals, which all employees have Human resources management comprises several processes like – Recruitment Orientation and Induction Training and development Performance appraisal Retention Recruitment: Recruitment refers to the method of screening and selecting people for a job or post within an organization. Staffing is the process of attracting qualified individuals for a specific job. The assignment of recruiting new staff is a vital but time-consuming process, so companies often prefer to hire an expert agency to source suitable candidates. The objective of a recruitment consultant is to build relationships with clients, source job vacancies, and find suitable candidates for each role. Now there are various types of methods where a company can recuruit employees Traditional recruitment agency Online recruitment websites Head-hunters In-house recruitment Traditional recruitment agency Recruitment agencies in the past have a physical location. A candidate visits a local branch for a short interview and an appraisal before being taken onto the agency’s books. Recruitment Consultants then try to match their pool of candidate to their clients open positions. fitting candidates are with potential employers. Online recruitment websites Online recruitment websites have two main features: job boards and a rà ©sumà ©/Curriculum Vitae (CV) database. Job boards allow member companies to place job vacancies. on the other hand, candidates can upload a rà ©sumà © to be included in searches by member companies. Fees are charged for job postings and access to search resumes. In recent times the recruitment website has evolved to encompass end to end recruitment. Key players in this sector provide e-recruitment software and services to organisations of all sizes and within numerous industry sectors, who want to e-enable entirely or partly their recruitment process in order to improve business feat. Head-hunters Head-hunters are third-party recruiters often taken when usual recruitment efforts have failed. Head-hunters are usually more belligerent than in-house recruiters. They may use higher sales techniques, such as firstly posing as clients to gather employee contacts, as well as visiting applicant offices. They may also purchase expensive lists of names and job titles, but more a lot will generate their own lists. They may arrange a candidate for the interview, help negotiate the salary, and conduct conclusion to the search. In-house recruitment Larger employers tend to take their own internal recruitment, using their Human Resources department. In addition to coordinate with the agencies stated above, in-house recruiters may advertise job opportunity on their own websites, coordinate employee referral schemes, and/or focus on campus graduate recruitment.). Otherwise a large employer may choose to outsource all or some of their recruitment process. Orientation and Induction New employee orientation is the process you use for salutation a new employee into your organization. New employee orientation, often spearheaded by a meeting with the Human Resources department, generally contains information about security, the work environment, the new job account, benefits and eligibility, company culture, company history, the organization chart and anything else relevant to working in the new company. Traning and Development In the field of  human resource management,  training and development  is the field anxiety with organizational action aimed at bettering the performance of individuals and groups in  organizational settings. It has been known by several names, including  employee development,  human resource development, and  learning and development. In simple terms, training and development refers to the instruct of unambiguous skills, capacity and information to an employee. A formal definition of training development is†¦ it is any attempt to improve current or future employee performance by increasing an employee’s ability to perform through  knowledge, usually by changing the employee’s attitude or increasing his or her skills and knowledge. The need for training development is determined by the employee’s performance shortage. References: (function() { var scribd = document.createElement("script"); scribd.type = "text/javascript"; scribd.async = true; scribd.src = "scribd.com/javascripts/embed_code/inject.js"; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(scribd, s); })(); cipd.co.uk/hr-resources/factsheets/history-hr-cipd.aspx#link_0 http://ezinearticles.com/?What-is-Strategic-Human-Resource-Management?id=549585

5 Practical Space-Saving Resume Tips from The Essay Expert

5 Practical Space-Saving Resume Tips from The Essay Expert Conventional resume wisdom says to keep it to one or two pages, depending on the extent of your experience. Are you having trouble meeting these page requirements? If you have a few lines that you just cant fit onto that page, the following resume tips may help. Tip #1: Adjust Your Margins Are your margins set at 1 or 1.25? Try 0.5 top margin (above your header); 0.6 bottom margin; and 0.8 left and right margins. Tip #2: Reduce Your Font Size Try reducing your font size, even by 0.5pt. Acceptable font size depends on the font you are using. I recommend actually printing the resume to see how it looks on paper. Radical? Maybe. But worth it. Looking at a hard copy will ensure that you do NOT reduce the font size so much that it leaves your readers squinting! Tip #3: Streamline Your Header Your header does not have to take up 4 lines. Many resumes have a header that looks like this (and takes up way more space than necessary): Alternatively, consider something like: See how you have magically saved three lines that can be used for substantive information? Tip #4: Shrink the Space Between Your Sections You dont need to put an entire space between experience blurbs or sections of your resume. Instead, if you currently have full spaces between entries, try this: Delete the space that is currently there. Put your cursor at the beginning of the line. Go to the Paragraph menu. Insert a 6pt space before or after the line, as appropriate. If you insert a 6pt space before or after a line, it will almost always be a smaller space than the one you create by putting in a full line of space. How many extra lines can you squeeze from your resume with this trick? Tip #5: Use One Line for Your Employment Info Do you have your dates of employment running down the left-hand column of your resume? This format may be using up prime resume real estate! If your resume uses this format and you are having space issues, try this: Put the name of your employer all the way to the left margin of your resume. Put the location right after the name of the employer (preceded by a comma). Put your dates of employment all the way to the right by inserting a Right Tab at your location of choice (probably at 6.8 or so). To insert a Right Tab: Either double click on the ruler at the spot you want to insert the tab, or go to the Paragraph menu. Click on Tabs Insert the position in inches where you wish to insert the Right Tab Under â€Å"Alignment, click â€Å"Right. Hit OK or Apply If your text jumps off the page as a result of this maneuver, have no fear! It has not disappeared, it has just moved beyond your viewing area. Place your cursor where you know the text should be and start hitting the delete button. Eventually the text will come back onto the page and be nicely aligned at the right tab you created. If you are still having trouble fitting your resume onto the page, you may need more extensive organizational assistance to condense and prioritize your blurbs and bullets. There are many ways to pare down your language and still get your experience and skill across. Did these resume tips help you cut your resume down to size? Do you have any other space saving tips to share? For more resume tips, check out Brendas DIY resume writing books or   The Essay Experts resume writing services.

Inventory, Management, and Scheduling Essay Example | Topics and Well Written Essays - 500 words

Inventory, Management, and Scheduling - Essay Example In this system, rather than placing the inventory in the centralized warehouses, it is placed in small stockpiles conventionally referred to as kanban at strategic points along the assemble line. â€Å"Both [lean manufacturing and the Total Quality Management (TQM)] strategies empower workers on the assembly line, in the belief that those closest to production have the greatest knowledge of how the production system should work† (Blacharski, 2011). Example of the lean manufacturing system can be of a car manufacturing company that takes the order for making a certain type and number of tyres for a day, and the producers are required to deliver them within a limited time to a certain loading bay. Companies benefit from the lean manufacturing because the use of kanban serves to cause a considerable reduction in the amount of waste along with bringing a manifold improvement in the overall productivity of the work. Lean manufacturing also ensures that the work is accomplished in accordance with the consumers’ expectations about the quality of the product. In order to achieve this, each part is analyzed for defects immediately after its creation. In case a defect is noticed, functioning of the production line comes to a halt in order to allow the analysts to determine the problem in its very initial stages. Requirements for balancing JIT and lean systems include commitment of all departments of aligning with a unified goal that is acknowledged and approved by the top management so that planning can be done and resources can be arranged in time accordingly. Initial stages of implementation of lean system require a lot of financial commitment. In order to achieve the required level of efficiency in the system, it is imperative that employees are adequately empowered. Production decisions should be allowed to be made at the lowest level in the hierarchy of the organization structure. Employees that are the most affected if a company decides to switch to a

Issues in crime Essay Example | Topics and Well Written Essays - 1500 words

Issues in crime - Essay Example Punishments have to be understood in the proper context to state the least. Punishment in modern societies is being seen with a skeptical eye because it creates a sense of empathy and sympathy for the people yet is often viewed as a corrective exercise all the same. This paper shall outline and evaluate the key justifications for the use of punishment in modern societies. The reason why punishment comes into the equation is because the basis of justice is being imparted in a manner that it should be in the first place. It is right to suggest that justice within a society is not all about being fair but about holding a great deal of importance on being just and timely, which unfortunately does not manifest truly in the time and age of today. It is a true saying that justice delayed is justice denied; for this reason justice takes both these things when it is defined in the truest sense of the word. Punishment needs to be understood within the dictums of justice because it is radically associated with the mighty men – the rulers and the ones who govern a particular area or a regiment of soldiers (Marsh, 1984). The concepts of civil rights and of civil law are both functions of the concept of civil society whereby it is that bubble of private action free of government control. It is not free of government action, because government action secures the nature of civil society by the protection of persons against criminal wrongs. The essence of civil society is thus that people are left by government to regulate their own pursuits of industry and improvement, while the government protects the citizens from criminal wrongs of violence, theft, fraud as well as many others. Punishment makes sure the civil society remains in order, and is not given the room to exploit the people in a negative way (Tonry, 2000). To quote as an example of punishment, one could understand the same in this notion. A commoner in today’s society is enticed every now and then to n ewer and fancier products and indeed adopt a similar way of life. For this, he wishes to have more money and if he works, he expects his employers to pay him more than his actual wage. White-collar crime is one form of crime that is on the escalation everywhere in the Western world. It ranges from breach of trust in highly technologically skilled societies to fraudulent charges and computer pilfering. It has been estimated to continue for an indefinite period of time in the future generations (Staddon, 1995). This sort of crime is difficult to define and hence few countries have been able to ascertain its origin, its perspectives and its rationale. This one is literally very hard to describe and examine and equally harder to enforce and arbitrate. The irony with white-collar felonies is that government and the people in particular do not pay heed to its curtailment and if something for the better is not done in this era, then it will surely become a super menace in tomorrow’s age. Within the modern societies, these punishments keep away the offenders and make them feel guilty because this is what is needed in the long run. The crime rate goes down and the people feel contented about the different punishments because these are correcting them more than anything else. However, if these punishments are geared to bring down their personalities, then the end result would be that they become hard core criminals and take law into their own hands, once they are set free from

Essay for admission to college Example | Topics and Well Written Essays - 250 words

For admission to college - Essay Example As a student, I feel that I learn best when I test the theories that I have studied through textbooks. – BU attracts students from more countries than are represented in the United Nations. Our global presence and reputation are important and are reflected in the perspectives, opinions, and experiences of our students. Why is this type of environment important to you? (500 words, 5000 characters) o As an international student, I have decided to study abroad to broaden my view and understanding of the world. Since I have experienced education systems in Korea, as well as United States, I am clearly aware of the differences between them. In Korea, students are forced to study while competing with their fellow students. After school, every single student is forced to attend afternoon study sessions until 12:00 am. This ruthless and yet systematic approach of education mechanizes students and teaches them only how to study, rather than coupling education with the knowledge of how to live like a good citizen in the society. All they learn in the school is how to become an efficient â€Å"student†. Due to this reason, they forget how to think creatively and react quickly to rapidly changing situations. As one of these students, I realized that learning under this environment would shrink my view and keep me away from being myself. Boston University’s norm of attracti ng students from different ethnical and racial backgrounds will surely set up a satisfactory learning environment that will guide me throughout my college career. A variety of arguments and opinions will help me understand different perspectives and contribute in my growth. o Undoubtedly, New York University is a prestigious university that focuses on the needs of its students and attempts to elevate their learning curve through careful nurture, education and providing

Exceptions to the Search Warrant Requirement Essay

Exceptions to the Search Warrant Requirement - Essay Example A search warrant is not an administrative function, it is a judicial act. In the United States, the issue of Search warrants is determined under Title 18 of the US Code. The law has been restated and extended under Rule 41 of the Federal Rules of Criminal Procedure. Each state can frame its own laws governing the issuance of search warrants. Fourth Amendment to the United States Constitution is one of the provisions included in the Bill of Rights. The Amendment guards against unreasonable searches and seizures, and was originally designed as a response to the controversial writs of assistance, which were a significant factor behind the American Revolution. It is observed that , in US , of the of the 19.3 million traffic stops documented in the study, about 1.3 million motorists said they or their vehicle had been searched. In almost 90 percent of these searches, police found no evidence of a crime .As such, Fourth Amendment was made to protect the interest and rights of citizens and to prevent harassment to their personal life and property. It protects citizens against unreasonable searches and seizures, provides that a search warrant may be issued only on oath or affirmation that a crime was probably committed. The amendment applies only to governmental actors. It does not guarantee to people the right to be free from unreasonable searches and seizures conducted by private citizens or organizations. ... The Amendment guards against unreasonable searches and seizures, and was originally designed as a response to the controversial writs of assistance, which were a significant factor behind the American Revolution. It is observed that , in US , of the of the 19.3 million traffic stops documented in the study, about 1.3 million motorists said they or their vehicle had been searched. In almost 90 percent of these searches, police found no evidence of a crime .As such, Fourth Amendment was made to protect the interest and rights of citizens and to prevent harassment to their personal life and property. It protects citizens against unreasonable searches and seizures, provides that a search warrant may be issued only on oath or affirmation that a crime was probably committed.The amendment applies only to governmental actors. It does not guarantee to people the right to be free from unreasonable searches and seizures conducted by private citizens or organizations. More specifically, the Bill of Rights only restricts the power of the federal government, but the Supreme Court of the United States has ruled that the Fourth Amendment is applicable to state governments by operation of the Fourteenth Amen dment. Moreover, all state constitutions contain an analogous provision. For eg. Article 1, and 7 of the Tennessee Constitution. Under the Fourth Amendment , searches must be "reasonable" and " specific". This means that a search warrant must be specific as to the specified object to be searched for and the place to be searched. Fourth Amendment protects citizens from physical entry to the home by search officials. It applies equally whether the police enter a home to

Empowerment and Organizational Effectiveness Essay

Empowerment and Organizational Effectiveness - Essay Example According to the paper, Â  human capital offerings in the form of their qualifications, skills, and experiences enhance organizational outcomes. Therefore, employee training, skill enhancement, and other expertise are given priority in strategic activities. With such level of commitment from organization, employees become even more committed and help organization to achieve its objective that results in an effective organization. Competitive markets reveal that all components of effectiveness are efficient in organization . Organization's excellence depends on its capability in achieving objectives by optimal use of its human resource, technology, and equipment. Experts believe that if empowerment results in better job satisfaction, it will also enhance employees' relationship with customers, suppliers, management, supervisor, and other colleagues.Therefore, empowerment directly influences organization's performance and effectiveness. This study discusses that there is a diverse body of literature on empowerment and its influence on organizational and individual performance. The paper explores empowerment background, the concept of empowerment, its strength, and reviews the works of some prominent scholars. Within a decade of its arrival, the trend of employee empowerment has reached to the status of a movement, but some consider it a fad depending on their approach. The core idea behind empowerment is the increased individual employee's motivation through giving authority to the lowest level of organization where an efficient decision can be made. The concept of empowerment has its roots inconsistent motivation, participative decision making, job design, self-management, and social learning theory. The literature on empowerment has both macro and micro perspective. Macro perspective concentrates on organization's structure and policies, on the other hand, micro perspective deals with empowerment as an intrinsic m otivation.

Models of Judicial Review Assignment Example | Topics and Well Written Essays - 500 words

Models of Judicial Review - Assignment Example Additionally, it also involves reviewing an administrative regulation to attain consistency for measuring the effectiveness of a Constitution, statute, or a treaty. Consequently, under the US Constitution, the judicial review lacks explicit powers of reviewing any of the above provisions. Instead, in the US, the judicial review operates through making of inferences of provisions, structure, and history guiding the Constitution. It implies that in a diffuse model, common procedural rules evaluate the constitutionality guiding administrative measures and statutes (Elliot, 2001). Likewise, decisions are mainly within inter parties from the highest to the lowest courts. In other words, most court decisions are deemed retroactive as a rule if there is an unconstitutionality of statutes and this is accompanied with consequences. According to legal experts, the diffuse model of judicial review finds applicability in most countries because of its flexibility and fluidity when approaching sen sitive matters touching on the Constitution. Diffuse model of judicial review differs with the concentrated model of review in varying patterns as interpreted by the law. For example, while diffuse model originates from America, its counterpart is largely Austrian or Europeans (Forsyth, 2000). Similarly, while the concentrated model reviews the constitutionality of statues mostly found in special proceedings, diffuse model is general and is specifically concerned with administrative measures. Contrastingly, unlike the concentrated model that is less widespread because of its limited review functions, the diffuse model is more widespread because it tackles several reviews of the constitutionality. However, both explore the constitutionality of treaties and laws in their respective countries of application. Constitutional review falls into four broad categories of systems. There is the American or diffuse model that uses common

Exceptions to the Search Warrant Requirement Essay

Exceptions to the Search Warrant Requirement - Essay Example A search warrant is not an administrative function, it is a judicial act. In the United States, the issue of Search warrants is determined under Title 18 of the US Code. The law has been restated and extended under Rule 41 of the Federal Rules of Criminal Procedure. Each state can frame its own laws governing the issuance of search warrants. Fourth Amendment to the United States Constitution is one of the provisions included in the Bill of Rights. The Amendment guards against unreasonable searches and seizures, and was originally designed as a response to the controversial writs of assistance, which were a significant factor behind the American Revolution. It is observed that , in US , of the of the 19.3 million traffic stops documented in the study, about 1.3 million motorists said they or their vehicle had been searched. In almost 90 percent of these searches, police found no evidence of a crime .As such, Fourth Amendment was made to protect the interest and rights of citizens and to prevent harassment to their personal life and property. It protects citizens against unreasonable searches and seizures, provides that a search warrant may be issued only on oath or affirmation that a crime was probably committed. The amendment applies only to governmental actors. It does not guarantee to people the right to be free from unreasonable searches and seizures conducted by private citizens or organizations. ... The Amendment guards against unreasonable searches and seizures, and was originally designed as a response to the controversial writs of assistance, which were a significant factor behind the American Revolution. It is observed that , in US , of the of the 19.3 million traffic stops documented in the study, about 1.3 million motorists said they or their vehicle had been searched. In almost 90 percent of these searches, police found no evidence of a crime .As such, Fourth Amendment was made to protect the interest and rights of citizens and to prevent harassment to their personal life and property. It protects citizens against unreasonable searches and seizures, provides that a search warrant may be issued only on oath or affirmation that a crime was probably committed.The amendment applies only to governmental actors. It does not guarantee to people the right to be free from unreasonable searches and seizures conducted by private citizens or organizations. More specifically, the Bill of Rights only restricts the power of the federal government, but the Supreme Court of the United States has ruled that the Fourth Amendment is applicable to state governments by operation of the Fourteenth Amen dment. Moreover, all state constitutions contain an analogous provision. For eg. Article 1, and 7 of the Tennessee Constitution. Under the Fourth Amendment , searches must be "reasonable" and " specific". This means that a search warrant must be specific as to the specified object to be searched for and the place to be searched. Fourth Amendment protects citizens from physical entry to the home by search officials. It applies equally whether the police enter a home to

Models of Judicial Review Assignment Example | Topics and Well Written Essays - 500 words

Models of Judicial Review - Assignment Example Additionally, it also involves reviewing an administrative regulation to attain consistency for measuring the effectiveness of a Constitution, statute, or a treaty. Consequently, under the US Constitution, the judicial review lacks explicit powers of reviewing any of the above provisions. Instead, in the US, the judicial review operates through making of inferences of provisions, structure, and history guiding the Constitution. It implies that in a diffuse model, common procedural rules evaluate the constitutionality guiding administrative measures and statutes (Elliot, 2001). Likewise, decisions are mainly within inter parties from the highest to the lowest courts. In other words, most court decisions are deemed retroactive as a rule if there is an unconstitutionality of statutes and this is accompanied with consequences. According to legal experts, the diffuse model of judicial review finds applicability in most countries because of its flexibility and fluidity when approaching sen sitive matters touching on the Constitution. Diffuse model of judicial review differs with the concentrated model of review in varying patterns as interpreted by the law. For example, while diffuse model originates from America, its counterpart is largely Austrian or Europeans (Forsyth, 2000). Similarly, while the concentrated model reviews the constitutionality of statues mostly found in special proceedings, diffuse model is general and is specifically concerned with administrative measures. Contrastingly, unlike the concentrated model that is less widespread because of its limited review functions, the diffuse model is more widespread because it tackles several reviews of the constitutionality. However, both explore the constitutionality of treaties and laws in their respective countries of application. Constitutional review falls into four broad categories of systems. There is the American or diffuse model that uses common

Hinduism Essay Example for Free

Hinduism Essay The belief of the existence of a supernatural being has always been there since time immemorial. People have a common belief that there exists a super being that has more power than an ordinary being and that this being deserves to be respected and adorned. It is because of this reason that there are many religions. Religions are groups of people who share a common faith. There are many religions in the world today but the most common are Christianity, Islam and Hinduism. The focus of this paper is Hinduism as a religion and more importantly what makes it a religion, now that it lacks a uniting belief (Kim.  1998). Hinduism ranks third among the largest religions in the world. It is estimated that in the world today there are about eight hundred and 20 million followers of this particular religion. This is a big increase in terms of followers in comparison to a few years back. Hinduism is also considered as one of the most organized yet the oldest religion in the world. This not withstanding Hinduism has been described by many theologians as not being a full-fledged religion in terms of composition as there are some components the religion lacks (Axel. 2004). Unlike other religions Hinduism does not have a universal founder. While Islam is believed to have been found by Prophet Muhammad who was sent by Allah, Christianity was founded by Jesus who was sent by God. This is however not the case in Hinduism as there is no particular person who is the founder of this faith. Hinduism as a religion also lacks a specific holy book as there is a Bible in Christianity and a Quran among the Muslims. There is also not a centralized system of authority and the concept of a prophet being sent by a supreme being is non existent in Hinduism. Hinduism also lacks a system of theology that is specific as it the case with other religions (Gavin. 1996). Hinduism had never been considered as a religion for many years for lack of these major components that make up a religion. However, as years went by due the large numbers that this faith was claiming it was now ranked among the three major religions in the world. Hinduism has instead been viewed more as a way of living than as a religion. While other religions, Christianity for instance are a group of people with the same kind of faith, Hinduism is made up of various religions where people profess different faiths. These different faiths have their origin in India and with gradual evolution they have led to the growth and development of Hinduism as a religion (Axel. 2004). Hinduism is very much bent on the beliefs of an individual on what is right as opposed to worshipping a supreme being. Although Hinduism is one of the oldest faiths of the world, it lacks unification and many people have always considered as a lesser religion or better still an organized group of faithful as opposed to a religion. Looking at the definition of a religion it is in order to conclude that Hinduism is not a religion but instead a well organized form of faith. The concept of God lacks in this form of faith and the shepherd who is usually the clergy in other religions acts like a mere guideline to other members of the society. Hindus have no one particular God to who they give worship and praise. Instead they have an array of gods who are represented by idols. Hinduism has been described as one of the most tolerant religions in the world where freedom of worship is granted to the faithful of the religion. For instance a Hindu faithful needs not frequent the temple so as to be considered righteous. Instead following the rules of the religion is considered enough (Gavin. 1996). Something major to note is that all; gods in the Hindu religion are not divines as is the case in other religions. While in Islam and Christianity, God is divine, in Hindu, their gods are artificially made and are mainly represented by animals especially cows. However the Hindu religion has one major strength and this is the manifestation of the religion. While in many religions this aspect does not always come out strongly, in Hinduism manifestation is considered as part of the daily routine (Gavin. 1996). In conclusion it is correct to argue that Hinduism is only considered a religion and indeed one of the major religions of the world mainly because of the mass following it has and not because of its composition. It has however been able to grow over the years and has found its place in the world and is now ranked third among the main religions.

Introduction Of Engine Block

Introduction Of Engine Block Until recently, cast iron and aluminum alloys have been successfully used to manufacture most diesel and conventional gasoline-powered engine blocks. However, with a greater emphasis on increasing the efficiency of the engine via weight reduction, there is a search for alternative alloys that are lighter than cast iron and aluminum alloys, while retaining the necessary strength to withstand the forces of an engine. In the late 1990s engine blocks made from plastic and other experimental materials were being used in prototype cars with the hope of developing more lightweight, efficient vehicles . Also lately new manufacturing processes have been developed that have brought to light two new alloys suitable for use in an engine block, magnesium alloy AMC-SC1 and compacted graphite cast iron (CGI). Thus this project will cover, the functional requirements of the engine block, the processes used to manufacture the part, and the mechanical properties of the alloys. INTRODUCTION: Todays engines are an integral component of an automobile that are built in a number of configurations and are considerably more complex than early automotive engines. The use of lighter and stronger engineering materials to manufacture various components of the engine has also had an impact allowing engineers to increase the power-to-weight of the engine, and thus the automobile. Since the engine block is also a relatively large component, it constitutes 20-25% of the total weight of an engine. Thus there is much interest in reducing the blocks weight.[Keay, Sue: Diet of Australian metal lightens cars and pollution, Media release, 14 October 2002.] Many early engine blocks were manufactured from cast iron alloys primarily due to its high strength and low cost. But, as engine designs became more complicated, the weight of the engine (and thus the vehicle) had increased. Thus the need to come up with lighter alloys that were as strong as cast irons arose. One such material that was being used as a substitute was aluminum alloys. Together, these two metals were used exclusively to fabricate engine blocks. Lately , however, a new material process has made a magnesium alloy suitable for use in engines. The alloy, called AMC-SC1, weighs less than both cast iron and aluminum alloys and represents new possibilities in engine manufacturing. A new manufacturing process have made compacted graphite cast iron (CGI) a viable alternative to gray cast iron for the manufacture of diesel engine blocks. Like magnesium alloys, this material offers a higher strength and lower weight than gray cast iron. Thus this section will cover materials used to manufacture engine blocks , component discussion, its functional requirements, and the materials used to manufacture the part. The mechanical properties of the individual alloys will be incorporated, along with the manufacturing processes used to fabricate the component. DESCRIPTION OF THE PRODUCT: WHAT IS AN ENGINE BLOCK? : The engine block is vital structure of vehicles which run on internal combustion, providing the powerhouse for the vehicle. The engine block is termed a block because it is usually a solid cast, housing the cylinders and their components inside a cooled and lubricated crankcase .Common components found in an engine include pistons, camshafts, timing chains,rocker arms, and other various parts. When fully stripped of all components, the core of the engine can be seen: the cylinder block. The cylinder block (popularly known as the engine block) is the strongest component of an engine that provides much of the housing for the hundreds of parts found in a modern engine. The block is typically arranged in a V, inline, or horizontally-opposed (also referred to as flat) configuration and the number of cylinders range from either 3 to as much as 16. Figure 1 shows engine blocks with V configuation. opposed configurations. Functional Requirements of a Cylinder Block: Because engine blocks are a critical component of an engine, it must satisfy a number of functional requirements. These requirements include withstanding high cycle fatigue stresses, thermal strains, and aggressive wear conditions over the full life of the engine, housing internal moving parts and fluids, ease of service and maintenance. REQUIRED MATERIAL PROPERTIES: The one-dimensional era of engine design is finished. The current approach considers the loads acting at each point of the engine block. (Vollrath, 2003) In order for an engine block to meet the above functional requirements, the engineering material(s) used to manufacture the the cylinder block material should have adequate strength and rigidity in compression, bending, and torsion. This is necessary to resist the gas pressure loads and also for the components, which convert the reciprocating motion of individual piston into a single rotary motion. The cylinder-block material should (a) be relatively cheap, (b) readily produce castings with good impressions, (c) be easily machined, (d) be rigid and strong enough in both bending and torsion, (e) have good abrasion resistance, (f) have good corrosion resistance, (h) have a high thermal conductivity,(to prevent failure under high temperatures). (i) retain its strength at high operating temperatures, and (J) have a relatively high thermal expansion, low density.(to resist expanding under high operating temperatures) High strength is a particular concern in diesel engines, since compression ratios are normally 17.0:1 or higher compared to about 10.0:1 for conventional engines. , and thermal conductivity . Good machinability and castability of the metal alloy are also important factors in selecting the proper material, as the harder it is to machine the product, the higher the costs of manufacturing. In addition to the previously mentioned properties, the alloys must possess good vibration damping to absorb the vibrations of the moving parts. METALS USED IN THE MANUFACTURE OF THE CYLINDER BLOCKS: Based on the functional requirements of the cylinder block and the material properties required to meet the functional requirements, industries have used cast iron and aluminum alloys to manufacture the blocks. EXISTING MATERIALS: 1)Cast iron alloys are used because of the combination of good mechanical properties, low cost, and availability. 2)Certain aluminum alloys combine the characteristics of iron alloys with low weight, thereby making the material more attractive to manufacturers who are seeking a competitive edge. NEW MATERIALS: 3)Compacted graphite cast iron is lighter and stronger than gray cast iron, making the alloy a more attractive alternative to the latter in the production of cylinder blocks, particularly in diesel engines. 4)Magnesium alloys, which were previously unsuited for use as an engine block material, have the advantage of being the lightest of all the mentioned metals, yet still retains the required strength demanded by a block. 1)GRAY CAST IRON ALLOYS: Gray cast iron alloy have been the dominant metal that was used to manufacture conventional gas-powered engine blocks. Though extensive use of aluminum alloys has minimized the popularity of this material, it still finds wide use in diesel-fueled blocks, where the internal stresses are much higher. The use of cast iron blocks has been wide spread due to its low cost and good formability. Generally types of gray cast iron of pearlite microstructure is used in the manufacturing of engine block. Gray cast iron alloys typically composition: A typical cast iron is a gray cast iron, which contains 2.5-4 wt.% carbon, 1-3 wt.% silicon, 0.2-1.0 wt.% manganese, 0.02-0.25 wt.% sulfur, and 0.02-1.0 wt.% phosphorus [Anyalebechi, P.N.: Essentials of Materials Science Engineering, January 2005, p. 94.]. and the balance (93.6%) iron. The carbon improves lubrication property of graphite, the silicon controls the formation of a laminated structure, called pearlite, which has good wear resistance, and the manganese strengthens and toughens the iron structure. A common aluminium alloy composition is 11.5% silicon, 0.5% manganese, and 0.4% magnesium, with the balance (87.6%) aluminium. The high silicon content in this alloy reduces expansion but improves cast-ability, strength, and abrasion resistance, while the other two elements strengthen the aluminium structure. While this alloy provides a good corrosion resistance, it can absorb only moderate shock loads. Types of cast iron used in engine block: SAE grade G2500- used for small engine blocks. SAE grade G3500-used for heavy and larger diesel engine blocks. Also some ductile iron are also used in manufacturing engine blocks. SAE AMS 5313C: mechanical properties: [alloying: understanding the basics , by joseph R devis.] Grade or class Hardness HB(a) Tensile strength min(b) MPa Yield strength min(b) MPa Elongtion in 50 mm(2in),%(b) Class A 190 max 414 310 15 Gray cast iron has excellent damping capacity, good wear and temperature resistance, is easily machinable, and is inexpensive to produce. However, gray cast irons are relatively weak and are prone to fracture and deformation. Although cast iron meets most of these requirements, it has a low thermal conductivity and is comparatively heavier. Due to these limitations, light aluminium alloys have been used as alternative cylinder-block materials for petrol engines. Cylinder liners are optional with cast-iron blocks; but are more essential with the relatively soft light aluminum alloy blocks, as they cannot directly withstand wear resistance. Because of the lower strength of the aluminum alloys, the blocks are cast with thicker sections and additional support ribs, so that their weight becomes about half of the equivalent cast-iron blocks. Due to these problems, compacted graphite iron has recently begun to compete with gray cast iron as the choice material to produce diesel engine blocks. COMPACTED GRAPHITE CAST IRON: Compacted graphite cast iron (CGI), which was accidentally discovered while trying to produce ductile cast iron, possesses higher tensile strength and elastic modulus than gray cast iron due to the compacted graphite found on the microstructure of CGI. Figure 8 CGI typical microstructure: 5% nodularity, 9% graphite, 265 particles/mm2. 3. CGI a new combination of properties: As shown in Fig. 8, the compacted graphite iron graphite particles appear as individual worm-shaped or vermicular particles. The particles are elongated and randomly oriented as in gray iron; however they are shorter and thicker, and have rounded edges. The compacted graphite morphology inhibits crack initiation and growth and is the source of the improved mechanical properties, as compared to gray iron. Compacted graphite iron invariably includes some nodular (spheroidal) graphite particles. As the nodularity increases, the strength and stiffness also increase, but only at the expense of castability and thermal conductivity (Guesser et all, 2001). It is usual to set a limit of 20% nodularity for CGI specifications. Table 1 shows mechanical properties of CGI, with grades from 300 to 500 MPa. In the case of cylinder blocks and heads, where castability, machinability and heat transfer are all of paramount importance, it is necessary to impose a more narrow specification. A typical specification for a CGI cylinder block or head can be summarised as follows: 1) 0-20% nodularity, for optimal castability, machinability and heat transfer 2) No free flake graphite, flake type graphite (as in grey iron) causes local weakness 3) >90% pearlite, to provide high strength and consistent properties 4) This general specification will result in a minimum-measured tensile strength of 450 MPa in a 25 mm diameter test bar, and will satisfy the ISO 16112 Compacted Graphite Iron standard for Grade GJV 450. The typical mechanical properties for this CGI Grade, in comparison to conventional grey cast iron and aluminium are summarised in Table 1: Mechanical and Physical Propertiesof CGI in comparison to conventional grey cast iron and aluminium at 20 °C Property Units GJV 450 GJL 250 GJL 300 A 390.0 Ultimate Tensile Strength MPa 450 250 300 275 Elastic Modulus GPa 145 105 115 80 Elongation % 1 to 2 0 0 1 Rotating-Bending Fatigue 20 °C) MPa 210 110 125 100 Rotating-Bending Fatigue (225 °C) MPa 205 100 120 35 Thermal Conductivity W/m-K 36 46 39 130 Thermal Expansion ÃŽÂ ¼m-m-K 12 12 12 18 Density g/cc 7.1 7.1 7.1 2.7 Brinnell Hardness BHN 10-3000 215-255 190-225 215-225 110-150 The results allow the comparison between CGI and gray iron. It can be seen the increase on tensile strength, moving from gray iron to CGI. CGI also shows a higher elastic modulus, when compared to gray iron. [- Mechanical properties of gray iron and CGI grades 400-450. 195-230 HB. Samples taken from the castings (Guesser, 2003)]. Figure 10 [Elastic modulus of gray iron and CGI grade 400. 12.0L I6 cylinder block (Guesser, 2003).] The results in Figure 10 were obtained from two sources: test bars and main bearings of a 12.0L cylinder block. The increase in elastic modulus, from 100 GPa for gray iron to 150 GPa for CGI, results in slighter cylinder bore distortion as reported by Tholl et all (1996), therefore reducing oil consumption and emissions. Results of fatigue strength tests can be seen on figure 11, comparing gray iron grade 250 and CGI grade 450, samples from an I6 5.9L diesel cylinder block. The fatigue limit for the gray iron is 62-79 MPa, depending on the carbon content, while for the CGI the fatigue limit is 175 MPa. The raise of fatigue strength allows the designer to reduce the cylinder block weight. As a result of mechanical properties improvements, a design study conducted by AVL Austria (Sorger Holland, 1999) has evaluated downsizing opportunities for a 1.8 L diesel engine cylinder block, converting from gray iron to CGI. The benefits of this conversion included: 1)9% reduction in overall weight of the finished engine 2) 22% reduction in weight of machined cylinder block 3) 15% reduction in overall length of the finished engine 4) 5% reduction in both; height and width of the finished engine Like gray cast iron, compacted graphite cast iron has good damping capacity and thermal conductivity, but its difficulty to machine has limited the wide-scale use of CGI. A new manufacturing process, however, has opened the way for larger applications of CGI. The development of rotary insert tools has increased the life of the tools used to machine the metal, thus allowing manufacturers to use CGI without worrying about purchasing new tools [Georgiou, George: Iron engines may be in your future, Tooling Production, September 2003, Vol. 69, issue 9, p. 26.]. MAGNESIUM ALLOYS: Magnesium alloys have been used in engines before, but not for cylinder blocks. Rather. The main advantage of this alloy is that the material is much lighter than cast iron and aluminum alloys and has the same strength as cast iron and aluminum alloys[Lampman, Steven: Tuning Up the Metals in Auto Engines, Advanced Materials Processes, May 1991, p. 17.][Anonymous, Magnesium alloy resists high temperature in engine blocks, Advanced Materials and Processes, August 2003, vol. 161, issue 8, p. 13.]. Material scientists and engineers were determined to exploit these characteristics of magnesium alloy and use it to fabricate engine blocks. There were a number of magnesium alloys available that met or exceeded the requirements demanded by manufacturers for an engine block, but insufficient material stability at high temperatures hindered their actual use. Following are the two alloys which have been found suitable for mass production of engine blocks. AMC-SC1: In 2003 material scientists and engineers from the Cooperative Research Center for Cast Metals Manufacturing and the Australian Magnesium Corporation presented their discovery of sand-cast AMC-SC1 magnesium alloy [Anonymous, Magnesium alloy resists high temperature in engine blocks, Advanced Materials and Processes, August 2003, vol. 161, issue 8, p. 13.]. This grade of magnesium alloy contains two rare earth elements, lanthanum and cerium, and was heat-treated with T6. This stabilizes the strength of the alloy at high engine operating temperatures, which is a necessary requirement for a cylinder block material [16]. Bettles et al. had performed experiments to determine the yield and creep strengths of AMC-SC1 and their results are shown in Table 3 [Bettles, C. et al., AMC-SC1: A New Magnesium Alloy Suitable for Powertrain Applications, Society of Automotive Engineers, 2003, p. 2.]. From Table 3, the most significant point is that the yield strength of AMC-SC1 essentially stays the same at 177 °C as it does at room temperature. Table 3: Yield and creep strengths of magnesium AMC-SC1 at room temperature, 150 °C, and 177 °C [17]. Room temperature 24 °C 150 °C 177 °C Yield strength, MPa 120 116 117 Creep strength, MPa 120 98 This means that the material is able to tolerate a wide range of operating temperatures without a loss in strength. Other properties of the magnesium alloy 10 include good thermal conductivity, excellent machining and casting qualities, and excellent damping characteristics. To demonstrate the significant weight savings of magnesium alloy over cast iron and aluminum alloy, consider BMWs inline-6 R6 (shown in Figure 4), which replaced the companys M54 aluminum engine. Its cylinder block is made of AMC-SC1 and is said to have decreased the weight of a comparably-built gray cast iron and aluminum alloy block by 57% and 24% [Jost, Kevin: BMW builds better inline six, Automotive Engineering International, January 2005, pp. 20-32.]. So far, BMW is the only company to have used magnesium alloy cylinder blocks in production vehicles. But, with a significant weight advantage over the current alloys used today and negligible increase in cost, other manufacturers will begin to consider the use of AMC-SC1 and possibly other grades of magnesium alloys for engine blocks. Figure 4: BMWs 6-cylinder R6 powerplant uses a magnesium alloy AMC-SC1-fabricated cylinder block [Jost, Kevin: BMW builds better inline six, Automotive Engineering International, January 2005, pp. 20-32.]. PRODUCTION PROCESS: STANDARD CASTING WITH SOME MODIFICATIONS: This alloy can be cast using a standard production process, with some modifications. For a magnesium alloy engine to be economically viable, it is not merely the cost of the alloy that is important. The casting process must also be commercially viable. There are several modifications required if an existing casting line of cast iron or aluminum is to be converted to one producing magnesium parts. These can be summarised as follows: à ¢Ã¢â€š ¬Ã‚ ¢ A new inhibitor in the sand cores to prevent reaction between the melt and the sand. à ¢Ã¢â€š ¬Ã‚ ¢ A redesign of the runner and gating system to ensure adequate filling (magnesium alloys have a low heat content). à ¢Ã¢â€š ¬Ã‚ ¢ Preheating of the core package to 150 °C. à ¢Ã¢â€š ¬Ã‚ ¢ Modifications to the core package design to allow low pressure rather than gravity filling and feeding. AM-HP2: AM-HP2 A High Pressure Diecasting Magnesium Alloy: The AM-HP2 magnesium alloy has similar high-temperature strength to AM-SC1 and has been specially tailored for use in the high pressure diecasting process. Like AM-SC1, the light-weight alloy significantly increases fuel-efficiency, environmental sustainability and vehicle agility and is suitable for the powertrain components of vehicles, such as engines blocks etc. Need for New alloy:AM-HP2 AM-HP2 has been specifically developed as a diecasting alloy for high temperature automotive powertrain applications, such as engine blocks, structural sumps and automatic transmission housings. The alloy is based upon the successful sand casting alloy, AM-SC1, with a modified composition to make it suitable for the high pressure die casting process. Commercial Opportunities AM-HP2 Magnesium Alloy in the Auto industry: High pressure diecasting is a highly productive process for mass production of light alloy components. While the casting integrity of sand casting and low pressure/gravity permanent mould castings is higher than high pressure diecasting, the latter technology is cheaper. Thus, this process is gaining popularity among auto manufacturers for casting of aluminium engine blocks. It is also the common process for powertrain components such as transmission housings. There is a strong demand in the automotive industry for a suitable high pressure diecasting magnesium alloy for high volume powertrain applications. AM-HP2 exhibits good diecastability and the required high temperature mechanical properties for engine components (including engine blocks) and automatic transmission housings. It has similar creep properties to alloy, AM-SC1. Advantages of AM-HP2 Magnesium over Other Alloys: A key advantage of AM-HP2 is that the alloy is more diecastable than competitor high temperature creep resistant magnesium alloys.Thus, the alloy can be more readily cast into complex shapes with fewer rejects and a wider operating window. The alloy also has better high temperature creep strength than its competitors and thus offers considerable advantage to engine designers seeking to obtain maximum performance for lowest weight and cost. current status of AM-HP2 magnesium development: Pilot scale diecasting trials and laboratory testing of mechanical properties have demonstrated the suitability of AM-HP2 for mass produced powertrain components. PRODUCTION PROCESSES: 3.2 Casting Processes There are two methods used to cast engine blocks for all materials: green sand molding or lost foam casting. The latter, pioneered by General Motors for their Saturn vehicles, have[11] become more popular due to its capability to produce near net shape components, provide tight tolerances for critical components, and reduce machine maintenance and cost [19]. Green sand molding, however, is still widely used in industry as material costs are low and most metals can be cast by this method [Luther, Norris: Metalcasting and Molding Processes, [Online], 22 March 2005-last visited, Available: http://www.castingsoruce.com/tech_art_metalcasting.asp.]. 3.2.1 Green Sand Molding: Green sand molding the common method to cast engine blocks. The term green denotes the presence of moisture in the molding sand . Figure demonstrates the pattern used in sand casting. The pattern mounted into the moulding box along with the runner and ingate system ready to produce a mould. [http://www.dmdaustralia.com.au/block1.html] From Figure 2, a combination of silica sand, clay, and water poured in one-half of the block pattern with a wood or metal frame. The mold is then compacted by squeezing or jolting, and the process is repeated for the other half of the mold. A core consisting of hardened sand is used for support. Then, molten cast iron, aluminum, or magnesium alloy is poured into the combined molds and solidifies. Once the latter part has been completed, the molds are removed, and the cylinder block is cleaned and inspected. Heat treatment of the block is then undertaken to improve the mechanical properties of the alloy for suitable use. [7]. 12 LOST FOAM CASTING: THE PROCESS: Figure 6: Graphical description of the last 6 of 7 methods of the lost foam casting method [Anonymous, Aluminum Cylinder Block for General Motors Truck/SUV engines, A Design Study in Aluminum Casings, pp. 1-31.] The lost foam casting process uses a expanded polystyrene replica of the part being cast. 1)The coated replica/pattern is placed in a flask and loose sand is placed around the pattern and shaken into its voids. 2)Molten metal is then poured through a foam sprue, or funnel, into the sand where the hot metal melts and displaces the foam of the pattern. 3)the metal cools in the shape of the part. The basic steps of the lost foam casting process are: 1) Pattern Molding Bead Pre expansion and Conditioning, Tool Preheat, Pattern Molding, Pattern Aging 2)Pattern/Cluster Assembly 3)Pattern Coating and Drying 4)Sand Fill and Compaction Metal Casting and Cooling 5)Shakeout, Clean-up, and Finishing Lost foam casting is a more reliable and efficient casting technique of the manufacture of engine blocks than green sand molding. The technique begins with the use of polystyrene beads placed in preexpanders for wet expansion to control bead size and density to produce four separate block moldings to be glued together to form the final mold [7, 19]. Next, the metal tool is preheated to remove any moisture and then filled with the beads. The tool is then heated via steam and placed in an autoclave, where it is subjected to high pressures in order to create the molds [7]. The tool is removed from the autoclave and immersed in water to finish the moldings. Precise control over the heating and cooling aspect ensures dimensionally accurate, smooth and strong molds [Anonymous, Aluminum Cylinder Block for General Motors Truck/SUV engines, A Design Study in Aluminum Casings, pp. 1-31.]. If the tool was not heated before the beads were injected, the results would be rough finishes in the molds with low-strength sections. If the tool and beads stay heated for an extended period of time, or is not cooled enough, the beads become overfused, which produces surface variations in the moldings. If the tool has been inadequately cooled, the molds will contain variations in dimensions [Anonymous, Aluminum Cylinder Block for General Motors Truck/SUV engines, A Design Study in Aluminum Casings, pp. 1-31.]. Figure 3 shows the final half stages of the lost foam casting method. . From Figure 3, once the individual molds are glued together, the assembly is placed in a vat with water-based ceramic liquid to prevent molten metal from destroying the mold, stiffen the assembly, and provide a smooth finish [Anonymous, Aluminum Cylinder Block for General Motors Truck/SUV engines, A Design Study in Aluminum Casings, pp. 1-31.]. The assembly can also be sprayed with the ceramic liquid, but is a time-consuming process. Next, the coated foam engine block is filled with sand,[13] compacted, and immersed in the molten metal alloy. Once cooled, sand is removed from the metal casting, cleaned, and undergoes heat treatment to increase the mechanical properties of the block. Finally, coolant and oil passages are machined into the block. Advantages over conventional sand casting: Unlike conventional sand casting, the lost foam process allows more complex and detailed passages and other features to be cast directly into the part. The lost foam process: 1) Forms complex internal passages and features without cores. 2) Reduces part mass with near net shape capability. 3) Eliminates parting lines. 4) Reduces machining operations and costs. 5)Provides for tight tolerances in critical areas and features. Lost Foam Casting for Fine Features: The lost foam casting process allows more complex and detailed passages and other features to be cast directly into the cylinder block. 1) In the cylinder block, oil galleries, crank case ventilation channels, oil drain back passages, and coolant passages are cast into the block. 2) These features would otherwise require drilling or external plumbing (with a potential for leaks). 3)Lost Foam castings have tighter dimensional tolerances compared to sand castings, because variations caused by core shift and core variability are eliminated and there is much less tool wear over the production life. The direct result is a significant reduction in machining costs and infrastructure investment and fewer opportunities for errors in machining and assembly. A comparison of green sand casting to lost foam casting shows a number of distinct advantages for lost foam: Property Green Sand Casting Lost Foam Casting Complex Internal Features and Part Consolidation Complexity determined by sand core limitations geometry, strength, and cost. Extensive and complex internal features (as small as 0.20) available in lost foam, based on detail duplication and pattern assembly in foam. Dimensional Tolerances +/- 0.030 is typical depending on part size, complexity, and geometry +/- 0.005-0.010 is typical depending on part size, complexity, and geometry. Surface Finish Capabilities 250-600 microinches typical. Depends on grain fineness of sand. 60-250 microinches typical. Depends on bead size and ceramic coating grain fineness. Feature Accuracy Core movement and shift between mold halves across the parting line limit feature accuracy. No cores or mold halves to shift and degrade feature accuracy Parting Line and Draft Angles Parting lines and draft angles are necessary for molding. No parting lines in the mold and minimal draft on tools. Environmental Costs Sand recovery requires binder removal and time consuming sand clean-up Sand is binder free, so it can be easily and rapidly recovered a