Loose Control

Lily walked into the crowded cafà © and was greeted by the warm smell of freshly baked bread. Mrs Austell always made the most delicious bread, not that she had eaten much of it lately. The mouth watering smell of Mrs Austell's home made loaf brought back bitter-sweet memories for Lily. Memories of when her life was happy. In control. Lily walked over to the cashier and began to place her order. â€Å"Can I have a bottle of mineral water and†¦Ã¢â‚¬  she stared longingly at the array of chocolate bars on display. If she was really good for the rest of the day†¦ She shook the thought from her mind. Four hundred calories per bar, even if she was good for the rest of the day, it would still take ages to burn off. â€Å"†¦um, yeah that's all thanks,† she finally said as she handed the cashier the money and went over to sit at the circular wooden table by the window. She had just started reading her favourite book when someone sat down next to her. She looked up to see a girl with greasy, peroxide blonde hair pulled back into a tight ponytail. Her ears glittering with fake gold hoops and playboy studs. â€Å"Awright orphan girl?† she asked, tauntingly. â€Å"Leave me alone Olivia,† answered Lily quietly. She tried to concentrate on her book. It was one of her favourites, and although she knew it back-to-front, it was still completely engrossing. It had been a present from her aunt that Christmas when†¦ She tried to hold back her tears, but it was too late, a lump had formed in her throat. She didn't want to cry in front of Olivia, she was bad enough already. Just as Lily began to feel the first mournful tears form, a voice called her above the chatter of the cafà ©. Lily looked up to see Darcey striding through the cafe, her long fiery hair swishing behind her making her look as if she'd just stepped off the catwalk. â€Å"Oh.My.Gosh!† said Darcey as she sat down. â€Å"What?† asked Lily cheerfully, feigning a smile. â€Å"I got the contract!† â€Å"Huh?† â€Å"I've signed with a model agency, Models one to be exact!† squealed Darcey. â€Å"Damn

Governements Use Fiscal Policy to Help Them Achieve Their Macroeconomic Objectives

Explain what is meant by this statement and discuss specific fiscal measures that the UK government has implemented in recent years to influence economic activity in the built environment. Definitions: FISCAL POLICY: â€Å"A combination of government spending and taxation used to achieve macroeconomic management. (The flow of government money in and out of the treasury. † (Danny Myers, 2006, pgs 75&126) MACROECONOMIC OBJECTIVES: â€Å"Targets relating to the whole economy, such as employment, price, stability and the balance of payments. † (Danny Myers, 2006, pg128) The Governments Macroeconomic (nations economy) objectives: 1. Low inflation/stable prices 2. Sustained economic growth 3. Low unemployment 4. Balance of payments between imports and exports (keeping money within the country as well as spending abroad 5. Environmental protection 6. Redistribution of income and wealth to poorRECENT YEARS: The fiscal measures looked at in this essay will be taken from 1990 onw ards. ECONOMIC ACTIVITY: â€Å"The production and distribution of goods and services at all levels. † (Wall Street Words, David L. Scott. 2003) THE BUILT ENVIRONMENT: â€Å"The built environment is made up of various types of property (residential, commercial, industrial etc); linked by infrastructure (sewers, canals, roads, tunnels etc) and separated by spaces in between (parks, woods, playing fields, landscaped areas, squares etc)†. (Danny Myers, 2006, pg6)AGGREGATE DEMAND: â€Å"All planned expenditures for the entire economy summed together. † (Danny Myers, 2006, pg123) †¢By influencing Government taxation and expenditure, aggregate demand can be stimulated to achieve Macroeconomic objectives such as; price stability, full employment and economic growth. †¢It is the total demand for goods and services in an economy. EXPANSIONARY FISCAL POLICY: †¢Increase in government spending and/or a decrease in taxes that causes the government’s budg et deficit to increase or budget surplus to decrease. This is a method used in a recession to stimulate the economy by providing each household with more disposable income, which can be used for consumption expenditures, which then stimulates aggregate production. It also decreases unemployment, which leads to further increases in income. CONTRATIONARY FISCAL POLICY: †¢Decrease in government spending and/or an increase in taxes that causes the government’s budget deficit to decrease or its budget surplus to increase. †¢Decreases the amount of disposable income per household meaning the output and national income is less.EXPLANATION OF STATEMENT: ‘Governments use fiscal policy to help them to achieve their macroeconomic objectives’ Fiscal policy deals with the governments spending and taxation. There are two types of fiscal policy, Expansionary and Contrationary. When the government needs to stimulate the economy by increasing public spending then they w ill decrease taxes so that each household has more disposable income to be spent on consumer goods. In turn this puts more money back into the economy, creating more jobs and encouraging economic growth.An increase in aggregate demand leads to a higher inflation as there is more money being spent on limited goods and services, which pushes the prices up. To counteract this the government decreases taxation and spending, so that consumer households have less disposable income to spend on goods and services, this decreases aggregate demand and brings inflation back down with it. To achieve a balance of stable prices the government must mediate between the two. SPECIFIC FISCAL MEASURES: STAMP DUTY HOLIDAY:The Stamp Duty holiday was introduced in September 2008 whereby properties worth between ? 125,000 and ? 175,000 were to be temporarily exempt from stamp duty. The stamp duty on this particular property bracket was 1% of the sale price, therefore saving a potential ? 1,750. The intent ion of the holiday was to boost demand in the property market by encouraging first time buyers to take advantage of the saving and buy a house. More money is then borrowed as people take advantage of this, which has the effect of boosting the mortgage market as well.According to the Council of Mortgage Lenders (CML), 132,500 house purchase mortgage transactions have benefited from the holiday; this is the equivalent of 25% of the overall 486,400 house purchase loans in the period. Buyers have saved 173 million from the holiday rather than the 600 million the government forecasted. The success is questionable as the incentive was supposedly directed at lower income areas to the North, the Midlands, Wales and Scotland where as, the majority of the benefits have gone to the richer areas in the SE.As this area in particular was hit by the recession the least and where the housing market is the strongest, the governmental loss of the taxation seems to have been wasted. The holiday ended on the 31st December 2009. Although there has been a brief stimulation in the current housing market the number of transactions is still at an all time low. The figures may fall further now that stamp duty has been reinstated, meaning that the government may have to explore other options. AGGREGATES LEVY â€Å"The Aggregates levy is a tax on sand, gravel and rock that is dug from the ground or dredged from the sea in UK waters.The tax addresses the environmental damage caused by these business activities in the form of noise, dust and loss of biodiversity. † (www. businesslink. gov. uk, Environmental tax obligations and breaks (online), (07. 01. 2010). The Levy was introduced on the 1st April 2002 setting out to address the macroeconomic objective of environmental protection while trying to retain sustainable economic growth. The idea is that the tax should make the cost of the aggregates better reflect the cost to the environment and should therefore influence business decis ions to become more eco-friendly and efficient.In terms of the Built Environment this encourages sustainable development, â€Å"The creation and responsible management of a healthy built environment based on resources efficient and ecological principals† (Charles. Kibert,1994). This definition incorporates six principals, (Miyatake, 1996) †¢Minimisation of resource consumption †¢Maximisation of resource reuse †¢Use renewable and recyclable resources †¢Protection of the natural environment †¢Creation of a healthy and non-toxic environment †¢The pursuit of quality in creating the built environment There is an argument that taxes such as this will damage international Competitiveness.The common object of development is to keep the cost as low as possible, to have a minimal construction period and to have the best quality possible. With increased taxation on these materials investors may become more cautious due to the rising cost, which is to be kep t as low as possible, therefore there is a possibility of the UK losing international business. This is just part of the problem between economic growth and environmental protection as both have the potential to hinder the other. However some of the tax revenue accumulated will go towards a sustainability fund.This will be spent through various agencies to promote new innovative ways to protect the environment and provide good quality construction at the same time. The Aggregate levy is a further development of the original ‘Landfill Tax of 1996. ’ This was set to influence the management of waste by encouraging a movement away from the cost of disposing waste in a landfill to a cheaper and more productive way of reusing waste materials. Both have helped to make businesses greener which agrees with the macroeconomic objective of Environmental protection. THE THAMES GATEWAY REGENERATION PROJECTThe Thames gateway regeneration project includes an area stretching 40 miles E ast of inner East London, both sides of the Thames and the Estuary. The area has been targeted for urban regeneration by both government and developers. There are an estimated 1. 6 million people living in this area, which has been deemed one of the most depraved in the UK. This is because of the lack of access to public transport, services, employment and affordable quality housing. The government wishes to gentrify this brownfield site to make the most of the economic potential of the gateway, and to encourage new investment and job opportunities. The Government Delivery Plan, 29th November 2007, Yvette Cooper) The project is co-ordinated by The Department For Communities and Local Government who continue to invest 3bn every year alongside the regional development agencies, the London Development agency, the East England Development agency and the SE England Development agency. (Thames Gateway Annual Report 2008/09). The Gateway project was drawn up in 1995 with the government hop ing to achieve 225,000 new jobs and 200,000 new houses by 2016. In this area there is emphases on developing town centres, public spaces and infrastructure to attract new investment to expand the economy.The Government hopes for this project to lead the way in terms of environmental jobs, new technologies and environmental improvements to existing homes and buildings. The Government is insuring this by providing funds for an eco-risk assessment of the housing programmes, energy savings methods for green housing and a zero construction waste target across the gateway. This project seems to have a lot of potential, however the timing of the recession limits the productivity and investment that it needs. The shortage of mortgages makes it difficult to sell the new housing at the arranged rices, which in turn can reduce investor confidence when companies are to buy up the land for housing developments. CONCLUSION From this essay it is clear that to some extent fiscal policies can be use d to help achieve macroeconomic objectives. From the examples shown, a combination of taxation and government expenditure has been directed at particular areas in the built environment to attain certain results. The construction industry makes up a large proportion of the UK economy and the government seems to be very focused on the issue of sustainable economic growth and environmental protection.The policies such as the ‘Aggregates levy’ and ‘landfill tax’ are addressing the objective of Environmental protection by playing a large part in the way buildings are constructed or demolished. By promoting the use of recycling of materials and reuse, the future of development will change for the better. This is seen in the Thames gateway regeneration project where they are leading the way for the future of construction by using eco friendly and sustainable methods. At the same time they are creating a huge investment opportunity, which will lead to the continued sustained growth of our economy.There will be an improved standard of living for the people who once lived in a depraved area by increasing the once lower levels of employment. From the Stamp Duty we can see that the government was trying to use this tax break to boost the property sector of the UK economy in a time of decline. However I do not believe that this has necessarily achieved its goal. The housing market may well fall again and the aim of helping people of lower income to get on the property ladder has not had its desired effect as the benefits did not go to the poorer areas in mind.

GFP Green fluorescent protein Essay Example | Topics and Well Written Essays - 500 words

GFP Green fluorescent protein - Essay Example Microorganisms can be easily used for genetic tailoring by means of genetic tools to study the modifications in environmental conditions. Reporter genes are tagged with multicoloured fluorescent proteins which aid in identifying the chemical effects prevailing in the environment. The engineered microorganisms are then used for whole cell array set-up on silicon chips and diverse optic fibres to get bioavailability of pollutants which could be correlated with their impact on life (Belkin, 2003). Reporter gene is expressed when it is fused with a promoter target sequences. Thus expression can be observed by the appearance of the reporter gene, in view of the fact that reporter is tagged with the active gene of interest. The promoter is tagged with a marker gene such as GFP, a stable molecule used to identify the phenotype or the genotype of the transformed organism. Luminescence markers: emit light making the selection process easy and simple moreover, they measure the cellular activity swiftly. FACS (fluorescence activated cell sorting) is performed with GFP, YFP and BFP i.e. green, yellow and blue fluorescent proteins respectively. The molecules do not require oxygen for fluorescence (Belkin, 2003). In transgenic organisms GFP molecule is integrated with active gene, expression of gene is observed through green glow under UV radiation. Transgenic organisms of various species such as E coli, C elegans, Drosophila were made to glow by inserting GFP reporter gene. Toxicity of GFP is not observed in both prokaryotic and eukaryotic organism, indicating the safety of the molecule. Small size of GFP makes it ideal for reporter gene or if GFP is tagged at the end of the active gene, it is expressed with the gene once the gene undergoes the process of transcription and translation, however, expression of GFP does not affect the protein; conversely, the protein can be seen as green fluorescence indicating the

Life Journey Essay Example | Topics and Well Written Essays - 1000 words

Life Journey - Essay Example After graduating from law school, I traced my way back to Chicago where I practiced as a civil rights lawyer with the firm of John and Carter Man. I taught constitutional law at the University of Chicago Law School, first as a lecturer and then as a professor and I helped in organizing voter registration drives during presidential campaigns. My lecturers usually told me that a lawyer is "a minister of justice, an officer of the courts, a client's advocate and a member of an ancient, honorable and learned profession." While, in this firm, it was my duty to serve the cause of justice, promote the interests of the state, be faithful to the clients, maintain the authority and dignity of the courts, demonstrated personal integrity and I was candid and courteous in relations with other lawyers. I married at the age of 25 to a beautiful wife, Rose Keane and we were blessed with two daughters, Shirleen, and Kate. I struggled to balance my time as a lawyer and as a dad too. However, it was fortunate enough to be surrounded by women, my wife, and the two daughters. They formed the most important part of my life, and they are the people who shaped me the most. I can term them as my sanctuary in this job. I usually attend the tennis matches of my firstborn and the oral recites of the second one during my offs. I usually feel persistent on the table while trying to stave off the passage of time as long as possible and I find myself enjoying every minute of the whole family together under one roof.

MANAGERIAL FINANCE AND ACCOUNTING Essay Example | Topics and Well Written Essays - 1250 words

MANAGERIAL FINANCE AND ACCOUNTING - Essay Example Particularly focusing on the financial monitoring aspect of the company, Creative Ltd. requires additional accounting resources to ensure an optimum level of efficiency and transparency in its financial reporting activities. Accounting is the monitoring and controlling of all financial transactions that take place, or are liable to take place, and it provides a transparent view of where the company stands financially at any given point in time. However within itself, we can classify it into two major segments (1) Financial, and (2) Managerial. They are discernible as follows: remains balanced. These activities include recording financial transactions, posting the double entries to general ledger, maintaining and adjusting general ledgers, closing the books and preparing financial statements. Managerial Accounting is more about monitoring financial performance, conducting variance analysis, following through with revised targets. It also encompasses the forecasting of sales, revenues, costs, budgeting activities of the firm etc. Financial Accountancy is conducted for external stakeholders of the company such as investors, Stockholders, Debt Providers, Regulatory Bodies etc. whereas Managerial Accountancy is executed for decision making within the firm and the information is mostly employed by middle and upper level management of the company. Financial Accounting is solely based on the past performance of the company, while Managerial Accounting focuses on the current predicaments and the possible future outcomes based on the previous performance of the company. (Diffen Online) Financial Accountancy requires that the data be completely objective and verifiable, whereas in the case of Managerial Accountancy, the data need not be completely objective or verifiable. This is because financial accountancy is primarily an overview of how the company has performed, thus it must be backed by accurate and concrete figures. However,

Legal Technique and Reasoning Moot Case Study Example | Topics and Well Written Essays - 1500 words

Legal Technique and Reasoning Moot - Case Study Example When Barry asked Graham to unlock the door Graham refused and said that he would be released only after Barry finished cleaning the windows. This resulted in confinement of Barry for a considerable period of time2. My Lord false imprisonment is committed when an employee is deliberately and lawlessly held against his or her will not allowing him or her to leave the room. This could be done either by locking the person in a room or closing all the path through which he or she could go out. The most common way of retaining an employee by an employer is, when he refuses to allow the person to leave the room. The employer may do this by locking him or her in a room, or by putting someone at the door to the room to avoid the person from leaving. Nevertheless, movement of the person so imprisoned, must be entirely restricted so that the employer's action qualifies as false imprisonment. Thus in the case on hand Barry was locked on the scaffolding thereby completely restricting his movements. To be completely confined physically, the plaintiff must not be able to move from the place of confinement. A plaintiff, thus cannot be said to be totally confined, if a means of breaking out is available to the restricted person. Nevertheless, such means of escape must be fair and reasonable4. It was, for instance, a fair way of escape in (Wright v Wright) 5 where the escape required a nominal encroachment on the land of a third party. Thus for Barry v. Graham, Barry was physically restricted from moving out of the place.. ---------------------------------------- 4Burton v Davies [1953] St R Qd 26. 5Wright v Wright (1699) 1 Ld Raym 739. False imprisonment requires the captivity of another person or the control of their movement. To set up false imprisonment a plaintiff has to institute at least 3 elements, and perhaps a fourth also as is discussed below: (1) The plaintiff is restrained (that is he is, sort of imprisoned). (2) The defendant restrained the plaintiff and held captive. (3) The plaintiff has the suitable mental state, which is deliberate, almost certainly carelessness and maybe negligence. (4) Even though arguable, but extremely litigious contentious is the fourth element, and that is that the plaintiff must know of the imprisonment. If the supra mentioned elements are fulfilled then it is false imprisonment. Nevertheless sometimes it may so happen that the imprisonment which does not fulfil all these requirements may still be unjust in one of the two following ways: (1) It may be unjust in negligence6 (This case is for unintentional imprisonment). (2) It may be unjust due to an action as in the case (Williams v Hursey and Wright v Wilson)7, both the cases were for partial imprisonment. In case of (De Freville v Dill)8

Advantages of dynamic pricing over fixed pricing Essay

Advantages of dynamic pricing over fixed pricing - Essay Example The advantaged groups are the internet savvy because they can manipulate algorithms that sensitize them to be price sensitive, therefore the dynamic pricing may set lower prices for them. Dynamic pricing is very advantageous as it allows sellers to use large amounts of information that directly assist them to make decision (Hartline 85). The seller therefore makes informed business decisions. The seller is also able to increase the price within the threshold of the buyer’s upper limit because of the availability of the historical data to the buyer. This makes the seller increase the profit margins. The fixed pricing is less advantageous compared to the dynamic pricing, as the price of commodities is inflexible to meet the changing demands. The sellers are not in position to maximize profits in case of buffer seasons. The dynamic pricing has limitations. For example if the potential buyer proves the track record of price sensitivity and becomes well informed of the product†™s market price, he may force the dynamic pricing to offer better deal. The critical information about the buyer considered by the sellers like current inventory, supply chains, and competitors’ pricing may affect the price charged to the buyer as at that time. This incidence makes the seller realize no very little or no profits (Hartline 158). A firm practicing dynamic pricing program may sometimes offer discounts to grouped purchases due to excess inventory hence benefitting the buyer more. Dynamic pricing may make upcoming or infant business deteriorate or become insolvent due to increased unhealthy on-line competition from the established businesses. Consortia e-marketplaces These are electronic market places differentiated from other configurations. They mainly focus on the provisions of the internal efficiencies and collaborative benefits of supply to chain members (Rendell 214). Consortium e-marketplaces have many accrued benefits for the organizations that use its s ervices. The market future for the consortia e marketplaces is to influence other organization to join the service. The benefits of participating in consortia e-marketplaces are distinct for buyers and the suppliers (Adrian 189). It improves operational efficiency for the, managerial efficacy, and strategic effectiveness for both the buyer and the supplier of any organization which is deeply integrated in its services. Therefore, it is considerably wise to endorse my organization to this service to obtain the international competition. To evaluate the exchange validity of the consortia e-market place I would analyze critically its function and analyze the operational strategy. Consortia e-marketplaces are joint ventures that operate independently from their producers and have a completely different operation with an independent CEO and management board. The consortia e-marketplace emerges typically in vertical supply chain where such situations like the purchasing side consolidates for dominant players and community supply has fragmentation or is unreliable (Adrian 289). In this situation, the consortia e-marketplace intervenes and become the reliable source for the community products. The consortia e-market place also may emerge where the existing supplier sources products from a small company. The consortia CEO selects a new market place and contracts the market for the existing supplier. This analysis shows the importance my organization may accrue for joining the consortia e-marketplaces. Enterprise resource planning ERP is a method of using computer to link the various functions like accounting, inventory control and the entire company. This method intends

Stem Cell Term Paper Example | Topics and Well Written Essays - 1500 words

Stem Cell - Term Paper Example As the basic unit of life, the cell became the determinant for the cause of several serious medical conditions, such as heart failures, birth defects and all types of cancer. An understanding of the process of cell development allowed medical scientists to assess a particular health condition and to boost the recovery of the person who has it. For the purposes of research and treatment, stem cell donation and banking emerged to become the hottest trend in the medical world, though a number of objections were raised especially by those from the church and other moralists. Stem Cell 101 As opposed to the other human and animal types of cell, stem cells are those that â€Å"carry the potential to develop into some or many different cell types in the body† (National Institutes of Health, 2010). A simpler and more direct approach is to state that stem cells are cells that renew on its own. They self-generate. As the human body’s repair and rejuvenating mechanism, stem cells have the ability to â€Å"divide endlessly and replenish other cells of the living person, and their product could either maintain a form of a stem cell or become another functional cell in the form of a muscle, brain or red blood cell† (National Institutes of Health, 2010). ... , there are other scientific inquiries conducted by the field experts to determine which other parts of the human body could be possible sources of such a ‘natural treasure.’ The positive outcome of these explorations shall be one of the most-awaited advancements in modern science and will be considered another quantum leap for humanity. Donation and Transplant It is with this potency and promise of the stem cell that health experts dedicated much of their time researching about this subject. Already, there have been a number of medical investigations that confirmed the multi-faceted functions of the stem cell and that indicated the need for a wider exploration on the matter, including its transplantation. Due to the fact that donated tissues and organs used to replace those that are infected or damaged are easily exhausted, an increased demand for stem cell donation was observed. Medical practitioners, consequently, encourage people to donate a part of themselves in the form of the stem cell to help those who badly need treatment for diseases such as diabetes, Parkinson's, Alzheimer, spinal cord injury, burns, arthritis and cardiac malfunction, among others. To respond to the need, nevertheless, some hospitals and clinical specialists would immediately offer mothers who have just given birth if they are amenable to donate the placentas and umbilical cords of the newborn. However, the decision remains in the mother and a written consent should be executed first. In addition, private businesses emanated to cater to the desire of families who want to preserve the umbilical cord of their newborn for any future use through sophisticated storage facilities. This goes with a substantial payment, though, required from the customers. But for healthcare institutions that

Final Exam questions Assignment Example | Topics and Well Written Essays - 500 words

Final Exam questions - Assignment Example Qualitative risk assessment however applies rationale to develop fixed values of factors to risk. Qualitative risk assessment method is the most suitable for homeland security. This is because of its diversified advantages, over the quantitative method, that meets the scope of Homeland security’s need for fast and accurate reactions. The advantages include simple analysis and results that facilitates prompt detection and response to risks (Landon, 2011). Risk management refers to a strategic process of managing probability of loss that is associated with a peril. Risk management strategies involve identification of involved risk, followed by its analysis that culminates to mitigation. The strategies are â€Å"avoidance, reduction,† and transfer (Akitonye, and Beck, 2009, p. 245). The three major threats facing the United States today are terrorism, natural disasters, and cyber crime. Terrorism is however the greatest of these threats because of its source and its political aspects. Being caused by human beings means that it can happen any time and its risk is enhanced by the United States international positions as a world power. The nation’s participation in international wars, especially in the Middle East also identifies significance of the threat. The relationship between risk, critical assets, threats, vulnerability, and consequences is that risk is a factor of critical assets, threats, and vulnerability, and its occurrence leads to adverse consequences. Risk defines exposure to a peril or potential peril. Critical assets define those assets that are instrumental to attainment of an objective while threats define phenomena that induce unpleasant effects. Vulnerability refers to the susceptibility to a threat and consequences define the results of manifestation of a threat. The presence of critical assets, threats, and vulnerability integrates to

PRINCESS DIANA Essay Example | Topics and Well Written Essays - 500 words

PRINCESS DIANA - Essay Example Being a free soul, she loved music and dancing. Also, she was quite fond of the popular culture and even after her divorce, later in 1982, she maintained her celebrity image amongst the masses. She was also deeply indulged in charitable causes including HIV AIDS, homeless and especially children with needs. Her leadership skills developed over time eventually and after consistent mentoring by Stephen Twigg, her personality transformed from that of a suicidal woman trapped in royalty to courageous women world stage performer. Furthermore, James Hewitt and Oliver Hoare turned out to be quite positive influence on her personality and helped her move forward. However, having met Hasnat Khan, she found a renewed sense of companionship and confidence in herself which transformed her leadership skills (Morton 1994). As a human being, Lady Diana was quite generous and kind. She was often found spending time in hospitals, old folk homes and various institutions. It is also said that her soul was dissatisfied and distressed, and devoting her time to Charity helped her with the healing process. She was also quite nurturing in nature as she spent a lot of time with her sons and taught them about the life outside the palace. Also, she reflected her celebrity image not just in Britain but also globally as she actively participated in charitable events around the globe including the Red Cross. During her marriage, she was acquainted to about 100 charities as Patron or President. She was also quite creative in character, and her interest and fascination with music led toward accomplishing various titles and awards. She motivated people by spreading a positive aura and sense of affection amongst others, especially the less well off. People responded with gratefulness and an even higher sense of affection toward her. Not only did they reciprocated her contributions with immense acknowledgement but also they gave her a very high

France in the American Revolution Essay Example for Free

France in the American Revolution Essay The role of France in the American Revolution can be identified as noticeable and visible. Despite the fact that the country experienced financial difficulties, it had managed to use the American Revolution as an effective tool to weaken arch-rival in both affairs of Europe, Britain and many other countries. The position of the British Empire was seriously damaged and therefore, France expected the United States to ally with it. There are many suggestions and assumptions about the role the country has played in the American Revolutionary War. Some argue that the sole purpose of the country was to revenge the British Empire as France had lost its territory in America after signing the Treaty of Paris in 1763. Others claim that the country has made up decision to intervene not to revenge, but because of strong desire to revenge the loss of Canada. However, the widely help suggestion is that France participated in the American Revolution because of desperate French position in Europe. Nevertheless, America had failed to weaken the British power and war appeared to be a tragic failure for French expectations. It is argued that the country â€Å"was desperate for peace but did not attempt to betray the United States†. (p. 87) Therefore, France can be defined as one of the most important supporters in American Revolution. Debt maintenance was the primary problem of the French government and the war resulted in more severe financial crisis which â€Å"which provided the immediate occasion for the release of those forces which shattered the French political and social order†. (p. 134) Summing up, France entered the revolutionary war in 1779 and helped the United States to become independent from the British Empire. France was willing to become the first commercial partner of the newly-formed and independent United States, but its hopes failed to be realized, but France became important trade partner. France expected to be recognized in the American Revolution and to be appreciated, as well as it was going to re-gain its territories in the United States. Works Cited Dull, Jonathan R. A. Diplomatic History of the American Revolution. USA: Yale U. Press, 1985.

Why IT doesnt matter Essay Example for Free

Why IT doesnt matter Essay 1.Explain the difference between a proprietary technology and an infrastructural technology. a.Proprietary technology is confidential information that is taken and used to gain a competitive advantage. Small businesses can own proprietary technologies and can be used to maintain a long term advantage; gaining higher profits than rival companies. Infrastructure technology is computer hardware, software, data, storage technology, and networks providing a portfolio of shared IT resources for the organizations. Infrastructure technology is greatly valued when shared among companies versus kept in seclusion. 2.Name two circumstance where an infrastructural technology provides a distinct competitive advantage. a.One example of the advantage of having infrastructural technology is having a product or service before it is invented or offered by someone else. A second example would be companies offering a unique corporate culture and offering extensive benefits or perks to keep employees motivated. In turn this will increase not only productivity but also will allow their employees to maintain motivated and achieve satisfaction. 3.Why is the competitive advantage of infrastructural technologies relatively short lived? a.The competitive advantage of infrastructural technologies is short lived due to the constant desire to better a product. Companies who come out with the newer or advancement of a particular product will have competitors fighting to come out with the next newer or advanced product and so on. Therefore, innovations only remain new for a certain time frame before another company precedes them. 4.What arguments does the author provide that IT is an infrastructural technology? a.IT is an infrastructural technology due to the extensive advancements that are constantly being produced by multiple companies and businesses. Infrastructural technology is a constantly changing field as IT is constantly being advanced and the use of IT has also been adapted by many organizations and industries as common practice. 5.To what does the author attribute the success of companies who appear to have used technology to their long-tern competitive advantage, such as Walmart and Dell? a.Dell and Walmart waited to make IT advancements until experimental technologies proved beneficial. By waiting to invest in IT, the fore running companies had spent more and in the end resulted in a financial loss due to outdated technology.

Effect Of Vibration On Solder Joint Reliability Engineering Essay

Effect Of Vibration On Solder Joint Reliability Engineering Essay CHAPTER 01 INTRODUCTION SOLDER JOINT IN ELECTRONIC ASSEMBLIES Circuit boards range from simple single moulded plastic boards with copper conductors on one or both sides to multilayer boards with copper conductors, each layer being separated by a dielectric and interconnected by metal conductors. Minimum line width and spacing between lines is less than 100  µm. The board typically is made from a composite such as an epoxy with layered sheets of woven fibreglass. The dielectric material between layers of conductors is usually a polymer, for example polyimide. To maintain solder ability, the exposed copper may be coated with an inhibitor such as benzotriazole or with a solder overcoat. Components are attached to the board with solder or metal-filled conductive adhesives. Fully assembled boards may be further protected against moisture, contamination, and mechanical damage by a cover coat. 1.2 SOLDER JOINT RELIABILITY AND FAILURE Solder joints are widely used in the electronic packaging industry to produce good electrical, thermal, and mechanical connections between the package and the printed circuit board. Eighty percentage of the mechanical failure in airborne and automation electronic caused by vibration and shock. Design appropriate measure to ensure the survival equipment in the shock and vibration environment is necessary to do so. Remaining 20 percentage of mechanical failure related to thermal stresses resulting from high thermal gradients, coefficient of thermal expansion and high coefficient of elasticity. Solder joint failure occur in several reasons: Poor design of the solder joint A bad solder joint treatment Solder material Excessive stress applied to solder joints. In general, however, the solder joint failure are simply ranked according to the ature of stress that have caused. Most joint failure fall into three major categories: Fatigue failure due to cyclic stress application Due to the implementation of a long term or permanent load The stress is due to overloading in the short term Reflow profile also has a significant role on solder joint reliablity. because It also has a high influence micro structure of the solder joint. Vibration failure of solder joints is often assessed for reliability using high accelerated life test, which is represented by a GRMS- time curve. For surface mount microelectronic components, an approximation of printed circuit board (PCB) model analysis can be made by assuming PCB as a bare unpopulated thin plate because the increase in stiffness of PCB due to the mounting of the components is approximately offset by the increase in total mass of the populated PCB [2]. However, this approximation can lead to errors in natural frequency prediction for different package profiles, for flip-chip-on-board (FCOB) and plastic-ball-grid-array (PBGA) assemblies [3,4]. When the component has small profile, the approximation of PCB assembly as a bare PCB can provide satisfactory modal analysis results because the stiffness and mass contribution of small component to PCB assembly is not significant. In this study, varying G-level random vibration tests for PCB assembly were conducted. In order to assess the reliability of PCB assembly, it is necessary to conduct the dynamic analysis. A global-local modeling approach [4-6] was used. The analyses by Basaran [7,8], Chandaroy [9] and Zhao et al. [10] show that solder joint deformation is in the elastic range for vibration loading. The global-local or submodeling method [11-13] has been used for the board level FE simulation. In this study, four different model cases were investigated for FEA modal analysis to calculate the first order natural frequency of the FCOB assembly. A quasi-static analysis approach was conducted for the FCOB assembly to evaluate the stress strain behavior of the solder joints. A harmonic analysis was also investigated to study the dynamic response of the FCOB assembly subjected to vibration load. Fatigue life prediction results from the quasi-static analysis and harmonic analysis approaches were compared to the test results. 1.3 PROJECT PURPOSE In this modern world due to the causes of health and environmental issues the electronic manufacturing industries facing a challenging problem of necessity to produce reliable solder products in very high density with very low cost. Solder joints are very important to the reliability of Printed Circuit Boards (PCB). This is a one of the leading factor in transmission of electrical and thermal connections. In case of every PCB even a smaller solder joints are very important. So this project investigates the Effect of Vibration on Solder Joint Reliability in Electronics Assembly Applications. Solder joint of a Electronic assembly is very important measurement because of This model based study might help engineers effectively improve the PCB mechanical design and thus improve reliability of electronics attached to the PCB by considering realistic uncertainties and adverse vibration environments. CHAPTER 02 LITERATURE REVIEW 2.1 SINE ON RANDOM VIBRATION TESTING Vibration sine on random testing is performed by superimposing a sine wave on top of a random environment. A sine on random vibration test duplicates the combined environment of a spinning helicopter blade with its distinct resonant levels and the rest of the aircraft which generates random engine and aerodynamic induced vibration. Gunfire on board an aircraft causes sine vibration while the rest of the aircraft generates random excitations. These types of tests are duplicating vibration characterized by dominant peaks (sinusoids) superimposed on a broadband background Another variation would be a swept sine on random test. 2.2 SINUSOIDAL VIBRATION TESTING Dynamic deflections of materials caused by vibration can cause a host of problems and malfunctions including failed electrical components, deformed seals, optical and mechanical misalignment, cracked or broken structures, excessive electrical noise, electrical shorts, chafed wiring. Because sine vibration is basically a certain fundamental frequency and the harmonics of that fundamental, in its pure state, this type of vibration is generated by a limited but significant number of sources. Expressed as amplitude versus frequency, sine vibration is the type of vibration generated in the field by sources such as engine rotational speeds, propeller and turbine blade passage frequencies, rotor blade passage and launch vehicles. While much of real world vibration is random, sine vibration testing accomplishes several important goals in product qualification and testing. Much material and finished product was modeled on some type of sine vibe signature. A sine sweep of frequencies will determine whether the assumptions were correct and if the deviations are significant enough to cause design changes. In other words, sweep will establish if the anticipated frequency has been met and/or discovers the test item fundamental frequency. Similarly, a sweep will help identify the test subject resonance frequencies, which may be the points at which the item experiences particularly stressful deflections. By dwelling at those frequencies in subsequent tests, premature failures due to the properties of the material may come to light before the items sees field use. Some of the following tests include fixed frequency at higher levels of the controlling variable (displacement, velocity, acceleration), and random vibration . Per customer request, NTS will run sweeps in one direction, decreasing, increasing or bi-directionally and can change frequency logarithmically or linearly. Another typical sinusoidal vibration test, sine burst such as the teardrop, goes rapidly to peak pulse and then decays at lower rate (to prevent damage to the unit). The burst test puts a maximum load into an article at a rapid rate and particularly stresses joints and seams to identify workmanship and design issues. 2.3RANDOM VIBRATION TESTING The legitimacy of random vibration s an effective tool of screening work man ship defects came about during manufacturing. Up until that limited hertz sine was applied during reliability testing. Pure sinusoidal vibration is composed of a single frequency at any given time. Comparisons tests revealed that to equal the effectiveness of random vibration. The test item will have to be subjected to many sine frequencies over a longer period of time, and may unintentionally fatigue the test item. Random vibrations undercover defect faster. 2.4 Real world simulation. Most vibration in real world is random for example a vehicle travelling over road experience random vibration from the road irregularities. A ground launched rocket vehicle experiences non stationary vibration during its flight the motor ignites the rocket travel through the atmosphere , the motor burn ends and so forth even in wing when subjected to turbulent air flow, undergoes random vibration. Random vibration is composed of multitude of continues spectrum of frequencies. Motion varies randomly with time. It can be presented in the domain by a power spectral density function [G2/Hz]. HIGHLY-ACCELERATED LIFE TESTING (HALT) Exposes the product to a step-by-step cycling in environmental variables such as temperature, shock and vibration. HALT involves vibration testing in all three axes using a random mode of frequencies. Finally, HALT testing can include the simultaneous cycling of multiple environmental variables, for example, temperature cycling plus vibration testing. This multi-variable testing approach provides a closer approximation of real-world operating environments. Unlike conventional testing, the goal of HALT testing is to break the product. When the product fails, the weakest link is identified, so engineers know exactly what needs to be done to improve product quality. After a product has failed, the weak component(s) are upgraded or reinforced. The revised product is then subjected to another round of HALT testing, with the range of temperature, vibration, or shock further increased, so the product fails again. This identifies the next weakest link. By going through several iterations like this, the product can be made quite robust. With this informed approach, only the weak spots are identified for improvement. This type of testing provides so much information about the construction and performance of a product, that it can bequite helpful for newer engineers assigned to a product with which they are not completely familiar. HALT testing must be performed during the design phase of a product to make sure the basic design is reliable. But it is important to note that the units being tested are likely to be hand-made engineering prototypes. At Trace, we have found that HALT testing should also be performed on actual production units, to ensure that the transition from engineering design to production design has not resulted in a loss of product quality or robustness. Some engineers may consider this approach as scientifically reasonable, but financially unrealistic. However, the cost of HALT testing is much less than the cost of field failures HIGHLY-ACCELERATED STRESS SCREENING (HASS) HASS testing is an on-going screening test, performed on regular production units. Here, the idea is not to damage the product, but rather to verify that actual production units continue to operate properly when subjected to the cycling of environmental variables used during the HASS test. The limits used in HASS testing are based on a skilled interpretation of the HALT testing parameters. The importance of HASS testing can be appreciated when one considers todays typical manufacturing scenario. Circuit boards are purchased from a vendor who uses materials purchased from other vendors. Components and sub-assemblies are obtained from manufacturers all over the world. Often, the final assembly of the product is performed by a subcontractor. This means that the quality of the final product is a function of the quality (or lack thereof) of all the components, materials, and processes which are a part of that final product. These components, materials, and processes can and do change over time, thereby affecting the quality and reliability of the final product. The best way to ensure that production units continue to meet reliability objectives is through HASS testing. RELIABILITY Reliability is defined as the probability that a device will perform its required function under stated conditions for a specific period of time. Predicting with some degree of Confidence is very dependent on correctly defining a number of parameters. For instance, choosing the distribution that matches the data is of primary importance. If a correct distribution is not chosen, the results will not be reliable. The confidence, which depends on the sample size, must be adequate to make correct decisions. Individual component failure rates must be based on a large enough population and relevant to truly reflect present day normal usages. There are empirical considerations, such as determining the slope of the failure rate and calculating the activation energy, as well as environmental factors, such as temperature, humidity, and vibration. Lastly, there are electrical stressors such as voltage and current. Reliability engineering can be somewhat abstract in that it involves much statist ics; yet it is engineering in its most practical form. Will the design perform its intended mission? Product reliability is seen as a testament to the robustness of the design as well as the integrity of the quality and manufacturing commitments of an organization. One of the fundamentals of understanding a products reliability requires an understanding of the calculation of the failure rate. The traditional method of determining a products failure rate is through the use of accelerated vibration operating life tests performed on a sample of devices. The failure rate obtained on the life test sample is then extrapolated to end-use conditions by means of predetermined statistical models to give an estimate of the failure rate in the field application. Although there are many other stress methods employed by electronic assembly manufacturers to fully characterize a products reliability, the data generated from operating life test sampling is the principal method used by the industry for estimating the failure rate of a electronic assembly in field service. Failure Rate (ÃŽÂ ») Measure of failure per unit of time. The useful life failure rate is based on the exponential life distribution. The failure rate typically decreases slightly over early life, then stabilizes until wear-out which shows an increasing failure rate. This should occur beyond useful life. Failure In Time (FIT) Measure of failure rate in 109 device hours; e. g. 1 FIT = 1 failure in 109 device hours. Total Device Hours (TDH) The summation of the number of units in operation multiplied by the time of operation. Mean Time between failures (MTBF) Reliability is quantified as MTBF (Mean Time Between Failures) for repairable product and MTTF (Mean Time To Failure) for non-repairable product. A correct understanding of MTBF is important. A power supply with an MTBF of 40,000 hours does not mean that the power supply should last for an average of 40,000 hours. According to the theory behind the statistics of confidence intervals, the statistical average becomes the true average as the number of samples increase. An MTBF of 40,000 hours, or 1 year for 1 module, becomes 40,000/2 for two modules and 40,000/4 for four modules. Sometimes failure rates are measured in percent failed per million hours of operation instead of MTBF. The FIT is equivalent to one failure per billion device hours, which is equivalent to a MTBF of 1,000,000,000 hours. The formula for calculating the MTBF is ÃŽÂ ¸ = T/R. ÃŽÂ ¸ = MTBF T = total time R = number of failures MTTF is stands for Mean Time To Failure. To distinguish between the two, the concept of suspensions must first be understood. In reliability calculations, a suspension occurs when a destructive test or observation has been completed without observing a failure. MTBF calculations do not consider suspensions whereas MTTF does. MTTF is the number of total hours of service of all devices divided by the number of devices. It is only when all the parts fail with the same failure mode that MTBF converges to MTTF. ÃŽÂ ³= T/N ÃŽÂ ³ = MTTF T = total time N = Number of units under test. If the MTBF is known, one can calculate the failure rate as the inverse of the MTBF. The formula for (ÃŽÂ ») is: where r is the number of failures. Once a MTBF is calculated, probability can derive from following equation: R(t) = e-t/MTBF Confidence Level or Limit (CL) Probability level at which population failure rate estimates are derived from sample life test. The upper confidence level interval is used. Acceleration Factor (AF) A constant derived from experimental data which relates the times to failure at two different stresses. The AF allows extrapolation of failure rates from accelerated test conditions to use conditions. Since reliability data can be accumulated from a number of different life tests with several different failure mechanisms, a comprehensive failure rate is desired. The failure rate calculation can be complicated if there are more than one failure mechanisms in a life test, since the failure mechanisms are thermally activated at different rates. Equation 1 accounts for these conditions and includes a statistical factor to obtain the confidence level for the resulting failure rate. THE BATHTUB CURVE The life of a population of units can be divided into three distinct periods. Figure 1 shows the reliability bathtub curve which models the cradle to grave instantaneous failure rates vs. time. If we follow the slope from the start to where it begins to flatten out this can be considered the first period. The first period is characterized by a decreasing failure rate. It is what occurs during the early life of a population of units. The weaker units die off leaving a population that is more rigorous. This first period is also called infant mortality period. The next period is the flat portion of the graph. It is called the normal life. Failures occur more in a random sequence during this time. It is difficult to predict which failure mode will manifest, but the rate of failures is predictable. Notice the constant slope. The third period begins at the point where the slope begins to increase and extends to the end of the graph. This is what happens when units become old and begin to fail at an increasing rate. Reliability Predictions Methods A lot of time has been spent on developing procedures for estimating reliability of electronic equipment. There are generally two categories: (1) predictions based on individual failure rates, and (2) demonstrated reliability based on operation of equipment over time. Prediction methods are based on component data from a variety of sources: failure analysis, life test data, and device physics. For some calculations (e.g. military application) MIL-HDBK-217 is used, which is considered to be the standard reliability prediction method. A simple failure rate calculation based on a single life test would follow equation 1. ÃŽÂ »Ã¢â€š ¬Ã‚  = failure rate. TDH = Total Device Hours = Number of units x hours under stress. AF = Acceleration factor, see Equation 3. Since reliability data can be accumulated from a number of different life tests with several different failure mechanisms, a comprehensive failure rate is desired. The failure rate calculation can be complicated if there are more than one failure mechanisms in a life test, since the failure mechanisms are thermally activated at different rates. Equation 1 accounts for these conditions and includes a statistical factor to obtain the confidence level for the resulting failure rate where, ÃŽÂ » = failure rate in FITs (Number fails in 109 device hours) ÃŽÂ ² = Number of distinct possible failure mechanisms k = Number of life tests being combined xi = Number of failures for a given failure mechanism i = 1, 2, ÃŽÂ ² TDHj = Total device hours of test time for life test j, j = 1, 2, k AFij = Acceleration factor for appropriate failure mechanism, i = 1, 2, k M = ÃŽ2 (ÃŽÂ ±, 2r +2) / 2 where, ÃŽ2 = chi square factor for 2r + 2 degrees of freedom r = total number of failures (ÃŽÂ £ xi) ÃŽÂ ± = risk associated with CL between 0 and 1. 2.2 SOLDER PASTE 2.1.1 ROLE OF SOLDER PASTE IN REFLOWING Solder paste is a combination mixture of a flux composition and a highly grinded, powdered solder metal alloy that is normally used in the electronics industry to soldering processes. And also it is call as a attachment medium between the device interconnection features and the PCB itself. The components of a solder paste are specially designed for excellent printing and reflow characteristics. In normal case of the surface mount soldering process involves placing the substrate and a small amount of solder paste in a printed circuit board. After that the system will be heated until the solder reflows, forms an electrical connection between the solder pad and the electrical contact of electronics part. After this reflow finished it forms both an electrical and mechanical connection between the electronics components and the printed circuit board. 2.1.2 SELECTION CRITERIA OF A SOLDER PASTE Selection of a solder paste is very important factor for reflowing process, reliability its quality. The following factors are considerable for a good solder paste [6]. The size of the solder alloy particles which are in the solder paste The tendency to form voids The properties of the flux medium of the solder paste Alpha particle emission rate The design of the stencil to be used for printing Thermal properties of the solder paste Electrical properties of the solder paste CHAPTER 03 EXPERIMENTS 3.1 MATERIALS AND METHODOLGY SOLDER PASTE Basically I used solder paste in same procedure. The details of solder paste used in the experiment are given in the following table TYPE OF SOLDER PASTE ALLOYS CODING PARTICLE SIZE METAL LOADIND S1 Sn95.5Ag4Cu0.5 S2 Sn42Bi57Ag1 Table 3.1.1 types of solder paste used in experiment For this project all above solder paste should be in a container with appropriate labelling and identification on it to distinguish it from the Tin lead solder paste. The solder paste should be stored in a refrigerator between 35 45 F. and should be allowed to come room temperature for minimum four hours before doing the solder paste printing. Once it has finished the using solder paste must replace to the refrigerator since it can not be at room temperature over 24 hours. The self life of the lead free solder pastes may be reducing from the typical six month. The above guidelines are strictly followed in this project. Because it is not only for guarantee the quality of solder paste but also a good way to reduce the errors that may affect the final results of the project. SOLDER PASTE PRINTING IMPORTANT OF SOLDER PASTE PRINTING Surface mount technology (SMT) is used extensively in the electronics industry. Surface mount components are potentially more reliable products can be designed and manufactured using the SMT. The solder paste stencil printing process is very critical and important step in the surface mount manufacting process. Most of all the soldering defects are due to problems dealing with the screening process. So we want to a major consideration in operation and set up steps in stencil printing process. When we are monitoring these factors carefully we can minimize the defects. The main purpose of printing solder paste on PCB is to supply solder alloy to solder joint to correct amount. That only print must be aligned correctly and can get a perfect component placement. PRINTING PROCESS PARAMETERS Some of the following parameters are very important to printing process. STENCIL Stencils are using for the solder paste slip easily off the aperture edges and thereby secures a uniform print. For this process we using electro formed stencils. Because of these stencils have very shape edge and slightly conic. Generally a stencil is mading from cupper or nickel [12]. ENVIRONMENTAL Dust and dirt from the air that will reach the PCBs and stencils can be defects poor wet ability in the reflow soldering process. So PCBs should be stored in sealed packages and cleaned before use. SOLDER PASTE Solder paste characterise must be controlled to achieve a maximum production results. Some of the factors are given below [12]. Percent of metal Viscosity Slump Solder balls Flux activity working life and shelf life STENCIL PRINTING PARAMETERS Stencil printing parameters are very important factors in printing processes to achieve a best yield. The following parameters must be monitors and controlled in a printing process. Squeegee pressure = 8kg Squeegee speed = 20 mm/s Separation speed = 100% Printing gap = 0.0 mm These factors and limit can be adjust for our project purpose SOLDER PASTE PRINTING EQUIPMENT AND PROCESS Figure 3.2.4.1 DEK 260 stencil printing machine The DEK 260 stencil printing machine is used to print solder paste on the circuit board. This DEK 260 stencil printing machine has two main functions. Registers the position of the product screen with in the print head Positioning the circuit board below the stencil, to ready for the print cycle. The boards to be print are supported on magnetic tooling and held by vacuum caps arranged on the plate to guarantee the board steady during the printing on to the board. The first step of the experiment is to do the solder paste printing on to the board. In this project unable to get metal stencil, so circuit boards are printed by hand, below procedure followed to print PCB Put weights onto the stencil to fix it roll the squeegee over the stencil solder paste presses through the aperture onto PCB separate stencil two circuit boards are printed with solder paste for each solder paste types. Totally 4 circuit boards printed. SOLDER PASTE REFLOWPROCESS/PROFILE Figure 3.3.1 reflow oven To achieve a good reliable solder joint the reflow process is very important. When doing the reflow with sn-pb solder paste often performed at minimum peak temperature of about 203. It is 20k above the sn pb liquid state temperature. When doing the reflow process with lead free solder paste it has to be performed at a minimum peak temperature of 230. It is just 13K above the melting temperature. It is generally accepted that lead free solders requires a higher reflow temperature up to 220 230. Reflow profile will be affecting the reliability of a solder joint. Because it is a major factor that influence the formation of the intermettallic layers in a solder joint. Intermettalic layer is a critical part of a solder joint. An intermettalic bond thickness should be thin. Therefore a good reflow profile must produce solder bumps with a thin intermetallic layer. PREHEAT ZONE In this zone indicates how the temperature is changing fast on the printed circuit board. The ramp-up rate is usually between 1-3 per second. If this rate exceeds there will be damage to components from thermal shock. Only In this preheat zone the solder paste begins to evaporate. So if the rise rate is too low the evaporation of flux is not incomplete. This will affect the quality of the solder joint. THERMAL SOAK ZONE It is also called the flux activation zone. In this thermal soak zone it will take 60-120 seconds for removal of solder paste and activation of fluxes. Solder spattering and balling will be happen if the temperature is too high or too low. End of this thermal shock zone a thermal equilibrium will complete the entire circuit board. REFLOW ZONE In this reflow zone only the maximum temperature will be reached. In this zone we have to consider about the peak temperature that is the maximum allowable temperature of entire process. It is very important to monitor this maximum temperature exceeds the peak temperature in this zone. It may cause damage to the internal dies of SMT components and a block to the growth of intermetalic bonds. we have to consider the profile time also. If time exceeds than the manufactures specification it also affect the circuit boards quality. 3.3.4 COOLING ZONE In the reflow process the last zone is cooling zone. A proper cooling inhabits excess intermetallic formation or thermal shock to the components. Generally the cooling zone temperature range is 30 100. In this project I selected the following temperature profiles. This temperature profile is stranded reflow profile for lead free soldering. Zone 1 220 Zone 2 180 Zone 3 170 Zone 4 190 Zone5 233 Zone 6 233 Totally 4 circuit boards were printed. Choosing of good reflow profile was not involves any defects or damages in the printed circuit board. Figure 3.3.4.1a printed circuit board after reflow SET UP EVENT DETECTOR The constructed PCBs were connected with event detector by ribbon data cable. Ribbon cable addressed according to `Analysis tech STD series event detectors manual . pins 1 to 32 function as source point and pins 33 to 37 function as ground point. To obtain closed loop circuit to monitor the behaviour of PCB components, PCB boards 1, 2, 3 and 4 connected to channel 1,2,33 and 34 respectively. Ribbon cable After connected ribbon cable with event detector and enviromenrt chamber, channels are assigned in WIN DATA LOG software which supplied with event detector. For this test following settings define for data acquisition INVESTICATING RELIABILITY OF SOLDER JOINT UNDER VIBRATION CHAMER In this study, PCBs were used in Variable Frequency Vibration Test to analyse the dynamic response of PCB assembly subjected to random vibration loading. The PCB specimens were tested at different acceleration levels to assess the solder joint reliability subjected varying G-level vibration loads(G is the gravitational acceleration), respectively. Vibration tests were accomplished by using an electro dynamic Shaker

Cheating and Plagiarism - The Plague of Plagiarism Essay -- Argumenta

The Plague of Plagiarism      Ã‚  Ã‚   Simply defined, the word plagiarism means "the unauthorized use of the language and thoughts of another author and the representation of them as one's own" ("Plagiarism").   While many students understand and comprehend the first clause of this definition, many encounter problems with the second part - the thoughts part.   Many students in today's educational system are frequently unable to develop their own thoughts, opinions, and ideas relating to the subject matter that they are studying.   However, when people at a university are educated according to the ways set forth by John Henry Newman in "The Idea of a University," their ability to create original concepts would be cultivated to the point, where they do not feel the need to plagiarize and cheat.   Newman also states that in the end, the university will produce citizens that can give back to society (48).   Jeffrey Hart makes a similar point in "How to Get a College Education."   Therefo re, according to both Newman and Hart, an honest person will be fashioned by the university.   Since honesty does not breed cheating, should not cheating then be minimized?   Plagiarism and its sister cheating are plagues on society that only serve to corrupt it.   Nevertheless, the education given by a university can diminish and, perhaps, even eradicate the disease by instilling in students,   a sense of honor, and implementing harsh penalties on those caught cheating or plagiarizing.      Ã‚  Ã‚  Ã‚  Ã‚   The fostering of independent thought is sometimes forgone in today's educational system. At times, students are encouraged to just complete their assignment instead of thinking about what they are doing so that they may fully understand their... ... single disease.   So, if universities devote even part of their programs seriously to curing society of this plague, it is quite possible that cheating and plagiarism can be eradicated once and for all.    Works Cited    Clayton, Mark. "A Whole Lot of Cheatin'Going On." The Presence of Others. 3rd ed. Ed. Andrea A. Lunsford and John J. Ruszkiewicz. New York: Bedford/St. Martin's, 2000. 185 - 190. Hart, Jeffrey. "How to Get a College Education."   The Presence of Others. 3rd ed. Ed. Andrea A. Lunsford and John J. Ruszkiewicz. New York: Bedford/St. Martin's, 2000. 126 - 131. Newman, John Henry. "The Idea of a University." The Presence of Others. 3rd ed. Ed. Andrea A. Lunsford and John J. Ruszkiewicz. New York: Bedford/St. Martin's, 2000. 126 - 131. "Plagiarism." Random House Webster's College Dictionary. 2nd ed. 2001. Cedrone 4   

Gangs Essay -- Gang Essays

When was the last time you were able to turn on the news and not hear about some sort of violent act? Crime is a growing concern amongst most cities, and street gangs are behind a lot of the trouble. Street gangs have plagued the streets for centuries and there is no stopping the urge to commit such hideous crimes. Gangs grow from recruiting young kids but what makes a kid decide to join a crime filled lifestyle. The gang life contains many negative aspects including the most notorious reason for violence, drugs. Getting high seems appealing to many students but with the excitement of getting high comes the responsibility of buying and selling the drugs. The biggest reason for a gang to start would be drugs. Marijuana might seem like a harmless drug but it can be the most dangerous drug to start doing. When someone smokes marijuana it attracts them to use other drugs and these addictions need gang support. Addictions attract young kids to this lifestyle to keep themselves supplied with drugs. With the drug lifestyle comes the violent aspect of it. Violence is important to gangs because it draws fear in the eyes of those who try to stand up to them. Violence is the worst aspect of gang life because it keeps getting worse as gangs keep growing larger. Violent acts are the biggest reason society has a negative outlook on gang life. But young gang members don’t start out using violent acts to get attention but by simple crimes like shoplifting. Even though shoplifting is a crime that puts people in jail, it seems like an easy way for attention for young kids. Shoplifting is also a very addicting activity because it’s a rush for the people that do it. Shoplifting can start out with something small like a keychain but then it keeps getting worse as one keeps stealing bigger things like money and electronics. When a young kid gets involved with gang activity their personality changes in a bad way. Now that the young gang member is part of some kind of illegal crimes their personality changes because they feel unstoppable. These young kids feel invincible, almost as if nobody can stand in their way, which can be a big problem to the people who stand in their way. These kids act as though they have no fear so this leads to more crime, which further leads to jail time. So why would young kids want to join a life of crime? The answers are numerous. Some kids a... ...f supplied and to make your profit. The next step up from being a drug dealer is to perform acts of violence to keep your gang feared. These are the kids who nobody dare mess with because rumors and stories spread quickly which makes them seem more popular. When the gang kids hear about them they instantly try to recruit them bribing them with drugs and money. These kids then have to be ready to fight the gang’s battles if anything ever gets bad. Then there are the ones who are on the top of the gang life ladder who gives out all the orders, which the others will follow. These are the kids that normally don’t deal drugs or use violence to scare people but are very smart. I consider them to be the most dangerous because they are the ones who control all the other gang members and use their powerful minds to bring fear to those who try to defy them. Gangs will forever be in the media and as long as crime still plagues the streets gangs will be recruiting young kids for there evil deeds. Family and friends need to stop ignoring the younger generation because their lives aren’t as simple as everyone thinks. Growing up isn’t easy and to find comfort in this lifestyle is very easy.

Organizational Ethics Essay -- Business Management

Market economies as ultimately embarked consumer sovereignty as the cornerstone of capitalism; further, bearing moral compasses in a pluralistic society of ethical behaviour. Hence, dictating the normative enactment of corporate social responsibility subsequently undertaken via individual businesses. Consumers under capitalism are, accordingly to ideology, the decision makers on the allocation of society’s resources (N. Smith, 1990). Echoing, mere imperatives for companies to articulate their role, scope & purpose in order to maintain their validity, reputation & self worth depends on their ability to understand their place in society (W. Visser, D. Mallen, M. Pohl, N. Tolhurst, page 101). As such, meriting thorough analysis of FirstGroup plc rather compulsion of fulfilling both ethical and corporate social responsibility in an ever evolving societal landscape will be undertaken. FirstGroup plc operates a transportation business model with a wholesome revenue stream of over  £6 billion & employs 130 000 staff throughout the UK & North America with a testimonial annual total passenger calculus of 2.5 billion and a justifiable 23% market share (UK bus and rail division). Griseri et al (2010) points out such core stakeholders of the company which are reluctantly vital for the existence and success of the company. These stakeholders form the principal resource base for the company. As FirstGroup maintain and improve their ability to on the resources held via their core stakeholders. In contrast, the second group (depicted above) relates to the company’s competitive position within the company’s particular industry and market. The main challenge for the company with this group of stakeholders is to establish and sustain relati... ...ivil society: emerging embedded relational governance beyond the (neo) liberal and welfare state models’, Journal of Corporate Governance, 5 (3), 159–74 Robert W. Kolb (2008), Encyclopedia Of Business Ethics And Society, Vol. 5, page 71 John Henry (2004), Between Enterprise and Ethics-Business and Management in a Bimoral Society, page 111 FirstGroup plc., 2010. Section 3 – Employment, . [online] FirstGroup plc Available at: [Accessed 16 December 2010]. Ghoul, S. et al, 2010. Does Corporate Social Responsibility Affect the Cost of Capital?, [online] Available at: [Accessed 2 December 2010]. Heinkel, R., A. Kraus and J. Zechner, 2001, The Effect of Green Investment on Corporate Behavior, Journal of Financial and Quantitative Analysis 36, 431-449.

Stakeholder management

A stakeholder is a party, an individual or a group of people who influence or can be affected or affect the actions of an organization examples are customers, suppliers, employes and owners or a given organization. Stakeholder management is a way of emphasizing that people support each other and taking an opportunity where others are not able to succeed.Stakeholder management is very important when it comes to success of any project in any given organization, this includes giving the right people the right responsibilities in the project, as one involves more people in the development of a project as the more people will affect the project development, and those people will come to rule out how the project will shape up and finally they will be the   more powerful people in that organization so great care should be taken when selecting stakeholders in the management of a project in the organization, as they will be sole determinants of the success of an organization .The success or failure or a project is greatly influenced by the way the management in the organization pursues and expects of their stakeholders, and how much they want to involve them in the development of the project.Research is necessary while deciding who the stakeholders should be while planning out a project; the management should have people carry out exclusive research to get the best possible stakeholders who will directly be affected by that specific project.Before making a decision on which the stakeholders should be you should try to allocate enough time on stakeholder management to decide on the critical decisions depending on how hard the project goals are, communication time and how much help you will need from the stakeholders to achieve your goals.It’s always important that while planning a project that the relevant people who are directly related to that project must be involved, this is because they are the ones who will make strategic decisions which will directly affe ct the success of the project.Each and every stakeholder should be involved to the extent of the success of that given project.   The management at the same time should not over involve stakeholders in their new project because they may end up interfering with the outcome of the project, only a limited number of stakeholders should be involved in the project.One needs to have a full understanding of the key stakeholders and how they are likely to be affected by the project.   Priority should be given to those that are affected more by the project and least priority to those that will be less affected. They need to communicate with the basic stakeholders so that they can always the part of the project and contribute to the success of the project in the best possible way.In conclusion, it’s important to note that the success of any project will depend on the involvement of all the stakeholders if positive results are to be realized.Maximum positive results can be achieved w hen all the stakeholders management communicates effectively to its important stakeholders incase the are to make any changes of while in progress with the project, the management should not keep changing its stakeholders from time to time because this will lead to inconsistent results due to different ideas contributed from the various stakeholders that will be involved.Reference: Earned Value Project Management, Third Edition by Quentin W. Fleming and   Ã‚  Ã‚  Joel M. Koppelman   

Playa Dorada Upload Essay

Goals of blowup dodgingThe goal of Douglas H tot solelyy, which is before dogged in charge of creating an expansion outline for Playa Dorada is to create a natural-fashi atomic number 53d expansion strategy in long bourne which may be by creating refreshful facilities for people using lawn lawn lawn lawn lawn lawn lawn lawn lawn lawn tennis tourist courts and exploitation the faculty of the actual lively tennis courts by modifying or optimizing capering instants or de considerationine of the courts. Additional to this Hall necessitate to satisfy all parties lively at Playa Dorada, including the pursuance departments-Research operations / low enthronement, promiscuous to manage-Marketing Sales / revolutionary tennis club house, lounge and shop-Finance / laborious cash flow and ROI-Development / blending into nature and alien architecture-Create an expansion strategy quickly-Satisfy all partiesOffered adjustments and solutions in the case-Readjust cost strategies-Build current courtsProblem definition intragroup and external- client expect to stunt woman briefly-increasing get hold of of tennis activities non organism adequate to keep the upholding trend-land bound for supererogatory courts-primary capacity fulfilment and set structure-overcrowding rear vector sum in pass of sales in houses-satisfy all parties butt endvasThe problem of Playa Dorada internally and outwardly argon the facts that the entreat for the tennis courts is growing steady and intensively. The step of guest take ining to use the available tennis courts is forecasted to doublethe next old age. thereof the existing tennis courts entirelytocksnot keep up with the raising trend of using tennis facilities at the Playa Dorada coast mending, which rout out turn out in ungratified guests, be beat they preemptnot use the desire tennis facilities during their holi twenty-four hour periods. be un satisfactory guests provide want t o tilt the refuge for holiday in the following holiday epochs because Playa Dorada is overcrowded and desired activities ignorenot be done. In assenting to this the tennis courts argon chiefly utilized by guests that are visit the lag for the second and third conviction. node that are at Playa Dorada for the first measure unremarkably prefer to use the edge as a major touring car attraction rather then melt down tennis or golf at the furbish up.An an other(prenominal) exsert that exists is the limitation for additional tennis courts. The submit for to a greater extent(prenominal)(prenominal) than tennis facilities could be stilled by geting mod tennis courts. The problem is that on that point is moreover space in point to fabricate only four additional tennis courts which ability only help in the condensed term of stilling the growing demand as forecasts are expecting continuous growth. The efficiency rule of the actual tennis courts is other(prenomi nal) problem as those purpose seems not to be maximized in terms of capacity. The before long existing tennis courts are usually available around 8am in the daybreak and with the sun going down in the razeing. Too many guests are the familiar supply.Additionally the determine structure ability be resettled in differentiate to still the demand for the available tennis courts. The existing gamy tote up of guests and universe overcrowded in some departments at Playa Dorada Inc. can result in a decrease of sales in Playa Doradas briny wage application, the sale of villas on the indemnify. not assumeing with the racy demand of guests, and move to satisfy all inevitably can result in grand losses and decrease of ROI for Playa Dorada as their villas need a huge investment to be lay down. This could cause a customary existing issue for the altogether Playa Dorada Inc. At to the lowest degree there exists the issue of satisfying all parties and departments inside(a) Playa Dorada as long as they do not throw off the same expectations. e truly(prenominal) departments have several(predicate) priorities and Hall needs to identify the roughly relevant ones and to go through compromises for all parties included.Customer Analysis-families with kids-income more than 125000$ a year-9-10 days revivify vacations-customer repair tennis during morning arcminutes and former(a) after(prenominal)noon-customers usually play one hour-prefer corpse courts-prefer less humidness and good climateThe customers of Playa Dorada Inc are in general families with one or deuce kids with parents that have the average income of 125000$ and belong to higher(prenominal) positions in companies or organizations such as managers. In average those families degenerate near 9-10 days at the bank mend in spring or winter. concord the tennis courts the customers usually prefer to play not more than one hour in the morning around 9-11 am or the late afternoon 4-6 pm wh ich are the preferred and most desired acting hours. The grown up customers which are usually the parents within the families are the of import clients for the courts, providing most profitability. Those customers prefer clay courts as they are not as hard as the rubber rubber-base paint ones. numerous clients deal to refuse from the rubber latex courts as it exponent hurt their bones. connection analysisStrengths (Ranked from 1 unbendable to 6 less important)- pit image s wellspring cognize for quality and in general chump cognizance (2) -many activities in animate as tennis golf and so on (4)-Good location tourist destination for holidays (3)-steadily high increasing demand of facilities and high saki of clients for the Playa Dorada in the last few years (1)-74% of guests well educated (6)-clients with high income (5)PD is already having a strong brand awareness among customers. The resort is known for world a luxurious redact for well educated people with a high(p renominal) then average income. PDs beach resort focuses on this people and creates a conjunction for well educated and high income people. more guests like the wear and the activities the resort offers and for this yard they buy accommodations or return to the resort in the following years. In addition to this the resort is located in Boca Raton, Florida where the weather isgood during the winter placate and American families can travel there rather fast without long flights to tropical and alien places.Therefore the demand for PDs beach resort is steadily growing what is another position for the keep company as it provides temporary gumshoe in visitors and allows to forecast that at to the lowest degree the tally of clients should not decrease in the short term. At least the high income of clients allows higher prices and provides clients which are more unforced to throw past money during their holiday period. Those clients arrived to spend their money in order to domesticize and have a nice prison term at the beach resort.Weaknesses (Ranked from 1 strong to 8 less important)- universe ineffectual to deal with increasing demand already (1)-in pass courts are not richly utilise (4)-no possibility to play at apparition (5)-no courts available during most desired acting hours 9-11 am and 4-6 pm (3) -players play more than one hour with the usage of discounts, blockage courts for others (6) -fees from maintenance costs of preferred clay courts (7) -fees from maintenance and go for housekeeping (8) -intensive advertize and promotion of tennis activities (2) The weaknesses the resort is confront are big disparities in the amount of clients during summer and winter periods as well as a lack of usage of the tennis courts during the summer period. Secondly the usage of the courts in the winter period is overcrowded what results in unsatisfied clients. The usage of courts is limited, acting in hours of darkness is not doable and the pricin g structure for the plays is not actual to the existing demand.Fees of maintaining the houses and clay courts are high.Additionally the marketing strategy of advertize and promoting the tennis courts is not on clock time anymore as the courts do not have to be communicated anymore.Opportunities (Ranked from 1 big to 6 low)-popularity of tennis is growing in general as trend sports (5)-tourism in Florida steadily growing (4)-continuous increasing demand of PD and growing brand awareness at customers(2) -increasing demand of guest and buyers (1)-automatization of labour providing more efficiency, lower labour costs and higher margins (6)-budget used for advert tennis courts can be used more expeditiously (3)The opportunities of Pc are the fact that the in all tourism industry in Florida is steadily gaining popularity and is continuously growing. Additionally to this the demand of tennis courts is growing as tennis seems to be a trendy sport at this times. When PD leave be able to fulfil the needs of customers according attractions in PD a good futurity for the profit of the organization can be existent. In addition to this margins can be gaind by automized labour which can decrease labour costs. At least the budget of advertising the tennis court can be sour in order to use the money more efficient in another investment.Threats (Threats graded from 1 big to 8 low)-overcrowding of facilities (2)-being unable to satisfy clients (1)-falling brand recognition (destruction of PD) and amount of clients (4)-no sales of housing (3)-no ROI (6)-high disparity of guest between summer and winter time (5) -substitutes available outside the resort (8)-continuous advertising capability higher demand purge more (7) Playa Dorada tycoon have to grimace many dangerous threats in future, when not dealing with the issue of overcrowding at its sports facilities in the resort. Staying overcrowded and not satisfying customers needs like providing tennis courts cleverne ss result in a falling brand awareness of PD and a loss in clients. This loss in clients would be exceedingly dangerous because the sporting facilities are primarily used by returning clients to the resort. Clients that spend their first time at the resort prefer spending their free time at the beach rather than do active sports. Without satisfied returning clients sports facilities might be completely jobless what would result a big decrease in ROI and increase cost for the whole organization.In addition to this, spoiling its reputation of being a luxury and good place for people to spend theirholidays in would result in a lower demand for clients that might buy housing at the PD beach resort. This would cause a giant loss in the companys biggest profit department and the huge investment of build houses would not contribute off. The existence of the whole PD resort would have been challenged. Another threat PD could face is a bigger disparity of clients during the winter and su mmer period. With a new investment in new tennis courts the demand in the high season might be filled but in the low season even more facilities might be unused and useless.Therefore it would be questionable if the investment would pay back for the new courts. Without make this new courts in the resort the high demand might shift to other tennis courts outside the beach resort. Clients might be desperate to play tennis and not getting any courts and convince to another provider outside the resort that is less problematic. Once the clients have gone and volition be satisfied, the possibility that they will come back is rather small. Therefore the loss of clients might be very expensive for the tennis courts department.RecommendationsShort term-build lights at existing courts to provide playing at night-avoid discounts at pricing to not encourage people to play longer-higher prices as demand is very high in order to increase profit and ROI and lower the amount of clients-higher p rices during excite hours of tennis courts-stop with advertising the tennis courts, kick upstairs other sports facilities as golfIn the short term Hall needs to increase the efficiency of the already existing tennis courts. This might happen with the building of lighting at the tennis courts so that some clients that want to play tennis might play it in the hours of darkness. install lights is an investment but it doesnot take much time compared to building new courts and is rather small.In addition to this all discount strategies have to be cancelled as PD does not want clients to play more than one hour but to increase profits and ROI of the tennis courts already existing. Another issue is that the more clients can play during one day the satisfied the mass will be. In opposite the prices for renting the court for a second hour might be slightly higher. This will make clients not even think about playing another hour just because it is cheaper. what is more clients will still be satisfied as they already have compete on the courts this special day. If infallible it is possible to advice them to play for a normal price at hours where the courts will not be fully used.Another increase in pricing should be made during flush hours of playing at the tennis courts with the spring that this times (9-11 am and 4-6 pm) are the most popular among clients. Clients that really consists on playing at those hours will be more willing to pay.Finally the advertising for the tennis courts has to stop because the courts are already set about a as well as high amount of customers in the high season. The marketing strategy may be modified to advertise the courts at low season by for example providing different tournaments or events at the tennis courts (further information see long term strategy).Long term tournaments and events in low season (tennis courts might be used differently) build two new tennis courts to answer the demand you can explain your potential clie nts that you are reacting to their expectations it might show them that investing in PD beach resort is reasonable queue another facility in the beach resort which needs to be promoted or use the money from advertising for other investments as new tennis courts in newregions if still needed after all the actions because of very high demand, build new courts at another locations of the third estate if locations might be far away you can provide sway services (golf cars) in order to bring your clients to the new tennis courtsAs shortly set forth in the short term strategy, in the low season more clients can be attracted to the usage of the tennis courts by providing different tournaments or events on the give of the tennis courts such as different games for kids or tennis tournaments.The advertisement of the tennis courts itself has to stop and to be modified in order to not attract too many clients as their expectations cannot be fully satisfied. Advertising should promote anoth er sports activity in the resort that might need more clients or at least promote the events or tennis at the tennis courts in the low season in order to attract customers when they are needed.In addition to this techniques two more tennis courts have to be build in the area that is already provided in order to cover the forecasted raise of clients in the next years. The building of more tennis courts right now is not necessary as it is hard to forecast how pricing, advertising and lightning at the courts described in the short term strategies will influence the demand for tennis courts in the long term. The building of two new tennis courts can be used as a marketing strategy in order to show clients that PD is solving the issue of too many clients at the tennis courts that will create a sense of touch of safety in potential customers of houses exhibit them that this is the right place to invest in houses.If there still will be relevant increasing of clients at the tennis courts, new clay courts might have to be build in another location of the PD beach resort.In order to make the new courts personable to the clients as they might befar away from the current tennis courts, PD might provide a transport service for clients to drive them to the new tennis courts with for example with small electrical vehicles as golf cars. The transport services might be cheap to not obviate clients and just cover the cost of induction the vehicles and maintenance. If the demand for this transport services will be unexpected high it might be turned into a profit activity and expanded through the whole resort.