Gcse Statistics Coursework Essay Example

Gcse Statistics: Coursework Essay This investigation is all about finding out what affects a persons ability to estimate. To answer the question to its full extent, I need to investigate thoroughly and be precise. My aims for this investigation are:- To record what factors affect a persons ability to estimate and to what extent.- To investigate the chosen variables in depth, to ensure an accurate result is made.The strategy for completing this task will be to simplify down the investigation into different areas. From doing this I can investigate in more depth. I hope to achieve a conclusive set of results to show which variables affect a persons ability to estimate.My hypothesis of this investigation is that age and intelligence will be the two main variables to influence a persons ability to estimate. I think this because,- For instance, if I compared a man of 45 and a boy of 15 to estimate, Id predict that the man would estimate closest. I think this because the man has possibly got more experience than the boy at estimating.- A persons ability to estimate can be varied by intelligence. For example, if I asked two boys in Year 10 to estimate, I would expect the boy with the better mathematical knowledge to estimate closest. I think this because he would be more able in maths, which would give him a better idea of the actual estimation.The variables which might affect a persons ability to estimate could be:- Age: does a persons age affect their estimating ability? Getting hold of older people in the same quantity of 11-18 year olds could be a problem.- Intelligence: how do we actually calculate intelligence? An average childrens intelligence I could record from their maths sets, but what about people older than 18?- Gender: does being male or female mean you have a greater ability at estimating?- Occupation: does being a chef mean you have a better estimating ability?The variables which I could use for estimating are:- Length: For this I could ask a number of people to estimate a specific leng th.- Weight and Mass: For these I possibly could give someone an object and ask him/her to estimate the weight.- Time: For Time, I could ask someone to count in seconds to ten and tell me when he/she thought ten seconds had past.All four of these variables could carry out investigations to do with estimating.The estimating variable, which I have chosen to use for my investigation is length. I have chosen this because I feel it will be the least complicated variable to investigate, therefore it wont cause awkward problems.A good percentage of youngsters dont have a good perception of weight or mass so this would surely have caused a problem if Id have chosen weight or mass. As for time, there may be cheating with a watch and I need to be 100% sure Im recording accurate results.The variables which I will be investigating to do with the people are:- Age, Intelligence and GenderThe reason I have chosen not to include Occupation is because I dont believe it would be as significant as the other variables. The type of job a person does, I dont feel would affect their estimating ability in as bigger way as some of the other variables.When I begin designing the data collection sheet I will have to ensure that the task they are doing is clear and well laid out.On the sheet there would need to be space to put:- their age, the full question, space for their answer.A number of problems could occur, such as:- cheating: a ruler could secretly be used when I look else where for a moment.- rules: does the task need rules? Does there have to be a time limit?Can these problems be overcome? If so, how?For cheating: I would have to make sure the person didnt have any rulers or equipment on them to find out the actual length.For rules: I would give a time limit of 30 seconds. I would use a watch to time the estimation. The rules Id set would be to not cheat, but simply estimate to your full ability.

Famine, Affluence and Morality Peter Singer Essays

Famine, Affluence and Morality Peter Singer Essays Famine, Affluence and Morality Peter Singer Essay Famine, Affluence and Morality Peter Singer Essay Explain and critically assess Singers argument for our obligation to relieve suffering in the third world. Why does the argument erode the traditional distinction between duty and charity? How would deontological and utilitarian theories of ethics view Singers argument?Singers main contention in Famine, Affluence and Morality, the article under consideration, is that our way of conducting ourselves morally ought to be revised. He thinks that if it is in our power to prevent something bad from happening, without sacrificing anything else of moral importance, or without making another bad thing happen, then we have a moral obligation to do it. What Singer means is that each one of us has the power to prevent what is bad and affect the rest of the world, however disparate and remote. Let us say that we are in a situation where we can, and should, prevent something morally bad from happening but we let it pass us by and do not try to prevent it.For Singer, this is not just laziness or co wardice, but moral wrongdoing. We ought morally to prevent it. I agree with Singers point here; it is true and uncontroversial (although his argument doesnt remain that way when he develops it further). He goes on to say that although everyone in their right mind would agree with this ideal, few people put it into practice by for example helping the people of Bengal. If people acted out their principles, Singer says, then todays worldwide society would be fundamentally changed.Singer then adds to this argument by saying that the existence or not of proximity, and the number of people prepared to help, should not make any difference to our moral obligations, namely, the fact that the Bengali refugees are tens of thousands of miles away should not lessen our obligations to them. Secondly, the fact that millions of others around a person are doing nothing to help is no excuse for one person not doing anything. One may feel less guilty about doing nothing to help if one can point to oth ers in the same situation, yet this cannot make a real difference to ones moral obligations. Therefore, inaction in the face of a problem like this for whatever reason is morally indefensible.My argument against these points is that one would very naturally feel a stronger connection with someone closer to one than with a person further away. This would lead one to feel a stronger responsibility to help that person if they were in need of assistance, and would mean that help would be more likely to take place in the first place, rather than not at all. Also, one would be in a better position to decide how precisely to help someone near to one than if that person were far away. Singer defends his position by arguing (using the Kantian theory of universalizing an idea) that we have no excuse to discriminate against a person merely because he is far away from us. The development of the world into a global village where transport and communication are almost immediate has made moral res ponsibilities less limited.Singers argument raises an interesting point about the difference in definition between duty and charity; nowadays charity is not generally considered a duty, whereas Singer is saying that it should be. Not enough people think or say that we are under a moral obligation to donate money to charity. A person may be praised for their generosity if they donate money to charity, but they are not condemned if they do not. People may give money to charity because it is a good thing to do, or because it gives them a sense of wellbeing, but they probably do not give it away because they think that they would be guilty of wrongdoing.Singers argument erodes this traditional distinction by stating that we ought to give our money away and it is wrong not to do so. We spend our money on clothes we do not necessarily need, so would not be sacrificing anything of moral importance if we were to give that money to charity and keep enough clothes to stay warm. Singer is sayi ng that most people would prefer to save a Bengali child from famine by donating money to charity while at the same time sacrificing some of their own luxuries. On the other hand, choosing to spend that money on unnecessary clothes and goods, whilst being aware of the Bengali childs situation, seems immoral. In the way we live our everyday lives, we are choosing the latter, and are thus seriously guilty of moral wrongdoing, according to Singer.However, if thought through, Singers ideal still encounters problems; one only has to think about the consequences of his ideal to see how meaningless it would become. If Singers argument was consistently applied, and we gave away everything apart from that which we needed for basic necessities no one would have any money to give to charity, because no one would have a job. No one would have a job because anyone who might have supplied one is now living at subsistence level, having donated his money to the Bengali people.Also, earned income ha s a value in a moral sense. When everything else seems unsure, an earned luxury is the certain, concrete assurance of your power to obtain good things. It may also be a reward you pay yourself for goals that you have reached. It offers evidence to your senses that your life is good. As a result, although giving most of your money away to the relief fund might be the right thing to do in Singers eyes, probably not many people would jump for joy at the idea. Furthermore, since Singer holds to his argument so strongly, I wonder if he actually gives away all of his money apart from that which he needs for basic necessities. If not, maybe he is waiting for the rest of the world to sacrifice harder before he starts to worry about his own hypocrisy.Singers main point in this article is that the whole way we look at moral issues our moral conceptual scheme needs to be altered, and with it, the way of life that has come to be taken for granted in our society. This is a major argument he is putting forward, and would be true if his basis for this point was valid, which I do not think it is. I agree with Singer on most of the points he makes in this article; it cant be argued against that if one is able to prevent something bad from happening, one has a moral obligation to do it. Nevertheless, whether or not your action or duty is determined to be moral or immoral depends on how you go about solving the problem at hand.Singer cries out at the end of the article, pleading that it is not enough for us to agree with him and discuss this problem; we have to act upon it, and change the way we look at moral issues. However, I do not think that his practical solution of donating our money to charity and sacrificing some of our luxuries is the most advantageous solution to the Bengali people.Singer concentrates his whole argument on one part of the problem in Bengal: people are suffering and need to be assisted. When trying to find a solution to the problem, though, Singer pro poses a solution to the fact that the Bengali people are suffering, rather than trying to solve the cause of their suffering. I say that you can either give enough of your income away so that a Bengali child has enough money to buy one bowl of food, or you can ask yourself why the political and social system in Bengal is not working as well as ours does.I think that his hypothetical thought experiments, for example the child drowning in the pond, are misleading and irrelevant to the real problem that he is discussing. His thought experiments only let you think of the solution in a linear way; the only possible right thing that you can do is to save the drowning child. Also, it is irrelevant to the real problem because one needs to ask oneself why the Bengali people are in the situation that obtains. Singer has twisted his thought experiments so that they only deal with the here and now; it seems absurd to ask why the child is in the pond in the first place, which is what we should d o.Singer declares that constant poverty, a cyclone and civil war were the reasons why the people of Bengal were suffering so much. Nowadays the country is ruled with an iron fist, and the rights of individual Bangladeshis, including the right to own property, are denied. Wealth cannot be accumulated in Bangladesh because those who would create it know that it will be taken from them by force. Large-scale, long-term trade is nearly impossible, so no one benefits from the sale of goods, luxury or otherwise. As a consequence, millions die and millions more barely subsist. If this is happening today, it is interesting to think how much worse the situation was in 1971, when Bengal was in the middle of civil war with Pakistan.The situation in Bengal will not get worse if you buy some nice clothes or go to the cinema. Our wealth is beside the point. What we can do to help is ask ourselves if the social system of Bengal would benefit if it were more like ours. This leads to an interesting q uestion as to whether it is better or not to create more capitalist societies. Singer, being a bio ethicist and a strong anti-war and animal rights protester, would probably think that a capitalist society would not benefit anybody. Maybe that is why he has fashioned a way to make the fact of the Bengali peoples suffering an excuse to ignore the cause of their suffering.This is where a consideration of a utilitarian viewpoint might be useful. If you were to give money away, whilst sacrificing some of your wealth-acquired luxuries, to the Bengal Relief Fund, maybe you would make one Bengali less hungry for a week, but you would not make him any less poor. Perhaps you would be happy at the thought of helping someone in a dire situation, and a few Bengalis might be happier but for no longer than a week or so. Also, you would of course be less happy as you would be sacrificing some of your luxuries. To promote the greatest happiness among the greatest number of people, as the utilitaria n theory goes, one would have to find a way to satisfy the Bengalis long term needs. What Bengal needs more than anything else is a regime change which will take care of the countrys long term needs. This is best left to governments and politicians rather than individuals. The question of how this idea impinges on the Coalition invasion of Iraq is an interesting one.In conclusion, I think Singer means for the best, although I cannot see how his solution is the best possible one. Help the Bengalis, but not by self-sacrifice. Is Singers real purpose to use self-sacrifice in order to help the Bengalis, or is it to use the Bengali people as a means to effect self-sacrifice? Self-sacrifice seems to me to be the ends, not the means. We could help Singer to achieve his goal by burning money in a bonfire equally as well as by donating money to Oxfam.

Role of Healthcare Practitioner Essay Example | Topics and Well Written Essays - 2000 words

Role of Healthcare Practitioner - Essay Example Endoscopy has developed rapidly in the last few years and provided relief to numerous cancer patients in the early detection of the disease, which renders it curable. The NHS has introduced new measures to ensure efficient utilization of endoscopy services, since available resources in this area are not being used to the optimum levels. Inpatients were being forced to wait for more than six days for endoscopy services and there was no proper coordination between A&E departments and endoscopy units, with incorrect referrals often being made. Improvements have been made based on deficiencies identified through studies in endoscopy [www.modern.nhs.uk, n.d]. Cancer nursing is an area where there are continuous developments and the optimum use of diagnostic tools such as endoscopy could make all the difference in treatment and cure of cancer patients. Thus the NHS has recently been introducing changes to optimize services and provide for better coordination between various medical terms a nd personnel to improve diagnosis and treatment for cancer patients. A Department of Health Services report released in 1995 which focused on the configuration of cancer services has resulted in fresh new perspectives being offered on the integration of cancer diagnostic and treatment services from a patient oriented view [Porter, n.d.]. Educational trends are also being reviewed, revealing the lack of adequate cancer based education in the field of nursing. This is a specialist branch of nursing and requires additional enhancement of study material for nursing graduates. Clinical diagnosis through endoscopy offers new opportunities for cancer trained nurses in diagnostic services [Porter, n.d.]. However, the field of cancer diagnostics and research has evolved into various disciplines such as endoscopy and radiology, which are now being inter-related to ensure optimum use of facilities and

Feminist Philosophy Reader by Alison Bailey and Chris Cuomo Coursework

Feminist Philosophy Reader by Alison Bailey and Chris Cuomo - Coursework Example The second section of the book mostly deals with issues pertaining to sex and gender. This section includes an essay from the now famous work by Simone de Beauvoir – the Second sex, which provides an insightful analysis into what makes the female different from the male from the emotional and psychological standpoint3. It also includes an essay by Judith Halberstam, which deals with transgender, i.e, the confusion that arises from being one gender trapped in the body of the other gender4. Anne Fausto Sterling’s essay also deals with the issue of transvestites and questions whether there should be such a strict delineation between the two genders5. These two articles differ from Beauvoir’s essay, which is primarily centered on the expression of a female identity, while the other two essays mentioned here deal with the identity crises faced by those women who are trapped in men’s bodies and vice versa. Yet another essay in this section, written by Oyeronke, deals with sex and gender from the African perspective and how Western theories may not always be relevant to African subjects6. 2. Section Five of the Book focuses on the political perspectives and implications associated with feminism and philosophy. It includes six essays by various authors. Spivak has dealt with the postcolonial approach to reason and in general, has rejected mainstream colonial literature in her analysis of feminist questions. She suggests that the values of theorists such as Marx and Kant are more relevant in today’s context.

Report Essay Example | Topics and Well Written Essays - 2000 words - 23

Report - Essay Example From the concerted effort, I made during financial planning and subsequently presenting this report to you, presents Yorkshire Building Society with an opportunity to grow its revenues at a more accelerated pace. Through this financial plan, you have been presented with the numerical logic for decision making. In addition, it serves to show the Yorkshire Building Society’s Board where the need to employ its resources for maximum returns and costs management. Through efficient financial management, Yorkshire Building Society, through its Board, will be able to set aside enough funds for marketing this new venture, expanding its operations to bring about more growth. Through this plan, I specifically addressed the required start-up costs, breakeven analysis, forecasted profit and loss, forecasted cash flow, and projected balance sheet. Additionally, financial ratios were conducted to show the expected performance. Having a good financial plan is a good starting point for answering the critical and fundamental questions on how much it will cost Yorkshire Building Society to get the venture started. The plan by Yorkshire Building Society to start a new business requires that it determines its budgetary needs in a critical manner. Since every business is unique from each other, it has its particular monetary needs at various stages of it development. In estimating the initial capital outlay, I considered the size of our company since there does not exist any universal approach for estimating the start-up costs. Some investment would require considerable investment in equipment and inventory. Additionally, there will be costs involved in the acquisition of the new store in Leeds. Some of the costs that Yorkshire Building Society will incur will be one-off costs as is the case with the new store and the fee for the new venture. Other costs will

Methods of Market-entry Strategy

Methods of Market-entry Strategy Chapter 8 Methods of entry A well planned market-entry strategy entails an operator greater management over its market initiation and launch expectations, thus providing assurance to meeting financial targets. Businesses nowadays attempt to accomphlish increment in sales, brand awareness and business sustainability by breaking into new markets. Formulation of a market entry strategy requires an in depth analysis of potential competitors and likely customers. There are numerous options to enter a market. The list comprises of direct and indirect exporting, joint ventures, Merger acquisitions or licensing of technology abroad. The risks benefits associated with each method are attributed to several elements. This includes the nature of the product or service you produce, the requirements for product or service support, and the foreign economic, political, business and cultural environment that the firm is seeking to enter. The ideal strategy is highly reliant on the firms level of resources and commitment, and the level of risk that the firm is willing to take. Many businesses select exporting as their entry strategy. Start-up costs and risks are kept to its minimal, and it is less complicated in comparison to the other methods. Exporting can be performed directly or indirectly. Via the direct method, the business extends its business plan to include exporting as a new activity and gathers knowledge and workers to execute the plan, i.e., locating foreign buyers, labelling product, making transportation arrangements, and invoicing. If the avenue of direct exporting is unavailable, firms can can consider indirect exporting via a foreign distributor. Barriers to trade, Depth of localized knowledge, price localization, competitors, and export subsidies are some of the relevant factors MNCs consider when deciding which entry strategy to pursue. Joint ventures A joint venture is a strategic alliance where 2 or more parties, usually businesses, form a alliance to share markets, assets, intellectual property, knowledge, and profits. The distinct difference between a joint venture and a merger is there is no transfer of ownership in the partnership. This partnership can happen between titans in an industry. Samsung siltronic (Singapore), for example, is a strategic alliance between Samsung and Siltronic. It can also materialise between two smaller businesses that believe coming together as one will allow for synegistic effect to ward off bigger competitors. Companies with similar products and services in their portfolio can also come together to enter markets they wouldnt or couldnt consider without investing large amount of capital. In addition, due to local regulations, some markets can only be entered through a joint venture with a local business. Example would be Delphi Automotive Systems Hasu Industries Sdn Bhd went into a joint venture to form Delphi Packard Electric Malaysia Sdn Bhd. In certain scenarios, a huge company can decide to form a joint venture with a smaller business. Its main objectives are to promptly acquire important intellectual property, technology, or resources otherwise difficult to acquire despiting having abundance of capital at their disposal. A few studies have been conducted. Their main findings revealed that most joint ventures have a failure rate corresponding to about 60% within a time span of 5 years. Experts concurr that the key attribute for success here is the human factor, such as the integration of human resources and the sharing of knowledge, rather than geographical or financial factors. Merger acquisition This approach is particularly enticing to companies in turbulent times. The reason why larger companies will attempt to takeover other companies is to initiate a more agressive, cost-efficient company. The companies coming together aims to attain a larger share of the market or to accomphlish greater efficiencies. Due to the potential benefits that is associated with the acquisition, target companies tend to agree to be purchased when they know the likelihood of their survival is low. When one company assumes control over another and distinctively established itself asthe new owner, the purchase is an acquisition. From a legal point of view, the targeted firm ceases to exist, the buyer devours the business and the buyersstock continues to be traded. A merger occurs when 2 firms, commonly of the same magnitude, agree to surge ahead as a singlenew entity rather than remain separately owned and operated. Both companies stocks cease to exist and new company stock is issued in its place. For instance, when Daimler-Benz and Chrysler merged, a new company, DaimlerChrysler, was born. Greenfield ventures Greenfield ventures is a form of foreign direct investment where a parent company sets up new operations in a foreign country by the construction of new plants and factories from scratch. In addition to constucting new facilities, new long-term jobs are created in the foreign country by the employment of new workers. Green field investments materialise when multinational corporations gain access into developing countries to construct new factories or stores. Developing countries tend to provide prospective companies tax rebates, subsidies and other types of incentives to entice MNCs to invest in their country. Governments rationale is that losing corporate tax revenue is a worthwhile tradeoff if jobs are created and knowledge, management know hows and technology is obtained to amplify the countrys human capita.

I-Search Research :: essays research papers

Prospectus For my Junior English Research Project. I would look into the different theories of what attracts two people to another. I chose this topic because I just want to know a true, good, and official reason for falling in â€Å" love †. Love, Well true love is a one in a million chance of happening. So†¦ I hope to find out what the different theories is most affective and accurate. Q: What is love? A: Love is when you have strong deep feelings for someone else and care about that person very much and only want that person to be happy. (Courtney’s answer) Q: How does love changes a person from the beginning until the end? A: Q: What are the 9 types of love? A: http://dataguru.org/love/fehrtyp.asp Q: What is Love part 2. A: http://www.bigbend.edu/soc/soc220/Outline4.htm Facts: The commitment dimension of love is often viewed as the decision to stay with one's partner for life. Commitments may range from simple verbal agreements (agreements not to become emotionally and/or sexually involved with other people) to publically formalized legal contracts (marriage). However, commitment is more than simply agreeing to stay with your partner through bad times. Commitment means being devoted to doing things to nurture the relationship and protect it from harm and to fix it if damaged. Both partners care about each other's needs and must be willing to put each other's needs first--including being willing to make personal sacrifices for the good of the relationship. The partners should be willing to depend on each other and feel secure that each will be loyal to each other and to the relationship. The emotional intimacy dimension of love is best characterized by feeling love for someone rather than being "in love" with them. The emotional intimacy dimension focuses on liking, friendship, trust and feelings of emotional closeness that result from being able to share one's innermost thoughts and feelings with a partner. Intimacy is achieved through a process by which one comes to know one's partner through increasing levels of self disclosure of one's thoughts and feelings. During the early stages of a relationship when the participants are still getting to know one another, strong passionate emotions may result from increasingly intimate levels of disclosure. Later, after the partners have gotten to know each other well, feelings of closeness, friendship, warmth, and caring will tend to predominate. For emotional intimacy to flourish, both partners must be understanding, open, supportive, and must feel like they can talk about anything without fear of being rejec ted.

De-icing operations at Minnesota Saint Paul

Executive SummaryThis study explains the consequences of research into how de-icing operations at Minnesota Saint Paul could be improved. The findings were that this airdrome should utilize a combination of infrared warming and antifreeze crop-dusting in order to defrost aircraft in a fast, safe, cost effectual and environmentally friendly manner. The de-icing procedure is called the â€Å" thrust through method † and this study has backed up its probe through elaborate computations and the usage of a determination matrix to compare the benefits of the thrust through method against utilizing others. Although there are some jobs such as its comparatively long payback clip of 2.5 old ages, plus risk the airdrome may hold to pay license fees due to patents on the engineering, the benefits of the thrust through method outweigh these drawbacks. One ground for this is that after the payback period the airdrome will do an one-year economy of about $ 7,080,000IntroductionRationale for the research The procedure of taking ice, hoar or snow from the surface of an aircraft is known as aircraft de-icing. This is an indispensable process because if these substances accumulate on an aeroplane they will magnify the retarding force force that the plane experiences. This will cut down the ability of its wings to bring forth adequate lift force to let it to take-off or tactic whilst in flight. Besides, harm could be caused if a big piece of ice dislodges from the plane and hits sensitive constituents like its engine. This could take to riders losing their lives in a clang and others losing their belongingss. The Federal Aviation Administration, FAA, modulate all major civil air power operations in America. One of their regulations is that aircraft must be free of ice before takeoff and during flight. Background This study uses Minneapolis Saint Paul ( MSP ) airdrome, Minnesota, as its primary instance survey. This is because aircraft at this airdrome often needs to undergo make up one's minding as a consequence of the cold clime before, during and after winter in that part. MSP airdrome spans 3,400 estates, has five tracks, five de-icing tablets and â€Å" served more than 32 million travelers in 2009 doing it 15th in the United States andA 30th in the universe in footings of figure of riders served yearly. † ( MSP Airport, 2010 ) De-icing is presently carried out at MSP airdrome by operators who spray an ethylene-glycol based aircraft de-icing fluid onto planes. Storm H2O drains to roll up the waste fluid, before it is transported by a truck to a recycling installation to be treated. It needs intervention because its high Biochemical Oxygen Demand ( BOD ) makes it harmful to the environment. Research Aims and Aims This probe aims to happen a method and chemical to utilize for de-icing planes which is more environmentally friendly, cheaper and faster than that which is presently used in MSP airdrome. It should be a â€Å" entire solution engineering † which eliminates/reduces all the jobs that the current de-icing method causes without bring forthing damaging side effects. These purposes will be achieved by finishing the undermentioned aims: Identify a replacement de-icing fluid which has the same/better de-icing functionality but costs less and is safer than the one presently used in MSP airdrome. Find a better manner to recycle the waste de-icing fluid Ensure that the new utility chemical allow de-icing fluid to be recycled Find another manner to take snow from aircraftGENERIC DESIGN PROCESSAdministrations frequently use a generic design procedure as they turn a merchandise thought into a manufactured point. Using a systematic, good organised designed procedure helps to cut down the research and development clip that a fresh merchandise experiences. The design squad for this undertaking used a generic design procedure and the actions that they took at each phase are detailed below: Merchandise Planning – First the squad used merchandise planning to assist do that dependable and valid research was carried out directly off. This started this by keep backing a treatment in which they clarified the purpose and aims of the undertaking. Then they identified their strengths and failings in relation to these aims to assist them take which responsibilities they were responsible for. Finally they agreed upon timescales in which to accomplish each aim. Designation of Customer Needs – Customers demands guided the squad ‘s merchandise inventions that were found. The squad held interviews with a representative from each major stakeholder group in the air hose industry, such as the air hose director and spray operator, to let them to voice their demands. This made it easier for the squad to put merchandise specifications and design a merchandise that they would O.K. . Constitution of Product Specifications – The client demands were ranked in order of their importance. The rank of each demand was relative to a weighting, tungsten, which was later used in a determination matrix. This information was used to bring forth merchandise specifications which were further defined utilizing prosodies. Coevals of merchandise thoughts – A insight was held to bring forth merchandise thoughts. This was utile because it encouraged the squad to construct thoughts on top of one another. From this they saw similarities between thoughts and linked some of them to specify a entire solution engineering. Choice of merchandise thoughts – A determination matrix was used to quantitatively compare the importance of each client demand in relation to the merchandise thoughts. The merchandise with the highest mark was selected for proving. Testing – The entire solution engineering was further evaluated in footings of its public presentation and economic viability. Because it was really good its specifications were was sent to industries so that they could construct a paradigm. Figure 1 – An illustration of the generic design procedure Figure 1 illustrates the merchandise design methodological analysis which begins with merchandise planning and ends with proving and industry. The flecked lines show that if one phase of the design procedure did non give advantageous consequences the squad would travel one or multiple phases back in order to polish their old purposes. Then they would progress through each phase of the procedure once more until they reached the concluding testing and fabrication phase. This process of measuring and re-assessing merchandise developments ensured that hapless designs were eliminated or improved before they reached the testing and industries phase.NeedAssorted clients have an involvement in aircraft de-icing operations ; these persons are referred to as stakeholders. The success of this venture will depend on how good it meets the demands of these persons. Hence, the squad evaluated each stakeholder ‘s demand utilizing an interview and ranked it harmonizing to its importance.Informa tion GatheringThe stakeholders were identified on the footing on who will pay for, sell, usage and run the de-icing engineering, these included air hose pilots and riders etc. They were interviewed and their responses are summarised below.Spray operatorQ1: How do you defrost a plane? â€Å" A container on a truck is filled with de-icing fluid which is assorted with H2O to a 50 % concentration by volume. I sit in an enclosed cabin and heat the fluid onboard the truck to 70oC before I spray it onto the plane until all the ice thaws. †Airport directorQ2: How of import is the BOD of a de-icing fluid? â€Å" Very of import, we pay the intervention works about $ 0.35 per US gallon and the monetary value goes up if the BOD additions. Our airdrome is fined if the BOD5 discharged to the environment exceeds 900 metric tons per twelvemonth. Q3: How long would you anticipate to wait for a return on your investing? â€Å" 1.5-2 old ages † Q4: How much does ethylene glycol cost? â€Å" The norm is $ 5-7 per gallon. † Q5: What safeguards were taken since your last incident? â€Å" We thought of retraining staff, but now operations are run by an outsourced concern. De-icing tablets and a drainage system were installed. †Aircraft directorQ6: What do you believe of incorporating a warming system onto aircraft? â€Å" Not ideal for commercial planes because it ‘s expensive †Air traffic accountantQ7: How severe is the break caused by aircraft de-icing? â€Å" During the extremum of the winter season there are regular holds. Aircraft must be de-iced once more if they exceed a holdover clip of 5 proceedingss. †Ranking of demands and ‘sanity check ‘The squad identified the most of import stakeholder demands and ranked them as listed below. Each demand was given a weighting, tungsten, harmonizing to its rank as portion of a ‘sanity cheque ‘ . Table 1 – The rank of each stakeholder demand and its weightingNeedWeight-ing, tungstenReasons1 ) Safety4 Safety was the top concern of every stakeholder. Aircraft at MSP airdrome can merely transport riders if they obey safety ordinances set by the FAA.2 ) LifeCost3 Some stakeholders disagreed on fiscal issues sing how much hard currency should be spent on certain points. e.g most spray operators would wish luxury de-icing cabins whereas airdrome directors would instead put the money. However, all stakeholders agreed that no de-icer with a high life-time cost would be acceptable.3 ) Speed2 Slow de-icing can do net income losingss due to detain flights.4 )Environmental impact1 Although the airdrome will be fined for doing inordinate pollution these costs are usually absorbed by clients.Constitution OF PRODUCT SPECIFICATIONSMost of the demands highlighted by stakeholders were expressed in a qualitative mode. They needed to be converted into specifications in order to avoid fiddling yet expensive betterments being made to MSP airdrome. To make this the worst instance de-icing conditions that could potentially take topographic point at MSP airdrome were defined and as portion of saneness cheque. Following prosodies were used set up specifications for merchandise and procedure design methods that could get by with the worst instance de-icing scenarios at the airdrome. Specification 1 – Annual length of operation The day of the months in which the planes will necessitate to be de-iced scopes from November to early April because on these day of the months the temperature in Minneapolis Saint Paul is below stop deading. Therefore, any new de-icing method must be able to run through this period of 5 months and 1 hebdomad ( 157 yearss ) every twelvemonth. ( Figure 2 ) Figure 2- The mean last temperature in MSP every twelvemonth from 1971-2000 Specifications 2 – The instance survey aircraft and its ice coverage The mass of ice on a plane was calculated utilizing a worst instance scenario, which was that one of the biggest commercial rider planes ; the Boeing-747 ( BBC, 2007 ) needed to be de-iced. It was assumed that the top country of both its wings was covered by a 1cm thick bed of ice. Flying country ( Boeing-747 ) = 541.2 M2 ( Airliners, 2010 ) Ice Thickness = 0.01m Ice Coverage 100 % i Volume of ice on wings, Volice = 5.412 M3 ( App. 1, Eqn 1 ) Density of ice, I?ice = 917kg/m3 ( Kotz, 2009 ) i Mass of ice, = 4962.8 kilogram ( App. 1, Eqn 2 ) Specifications 3- Heating Duty Latent heat of merger of ice= 333 kJ/Kg ( Bird, 2003 ) i Minimum warming responsibility = 1652.6 MJ ( App 1, Eqn 3 ) Specifications 4 – The utility de-icing fluid The atmospheric temperature in MSP airdrome during the de-icing season is 20oF ( -29oC ) therefore the replacement ADF stop deading point must be less than 20oC in order to keep its functionality. Additionally it must supply a freezing point depression of more than 20oC as a consequence of this ambient temperature. All the stakeholders agreed that merchandise safety is of topmost importance, so the replacement ADF should be less toxic than ethylene-glycol. Additionally they agree that the one-year natural stuff costs of the new cubing method should be less than that of the current method. Two ways to make this are to utilize less cubing fluid per plane in the first case ; this should be less than the 408 gallons per aircraft required by the current de-icing method ( App. 1, Eqn. 9 ) , or to recycle the de-icing fluid.GENERATION AND SCREENING OF IDEASThe squad worked separately and brainstormed together to assist maximize the figure of good thoughts that were generated. Whilst making so they reflected upon the merchandise specifications to and stakeholder demands to assist test thoughts.De-icing IdeasDe-icing boots – Rubber boots are attached to the front borders of wings on the plane. The aircraft inflates these boots with air to do ice that take ice that has accumulated on them. An unacceptable hazard of utilizing this method in MSP is that the system must be activated every bit shortly as a before an big ice bed can organize and hit other parts of the plane when it dislodges. Bleed air- In this method hot air from the aircraft engines is blasted on to the ice to run it. Although this could run ice really rapidly the airdrome director at MSP airdromes commented that incorporating heating systems on to aircraft is â€Å" non ideal for commercial planes because it ‘s expensive † . Mechanical Scraping/Blowing Employees use coppices, or fabrics to physically force ice off the aircraft. This method would be really easy to set into pattern at MSP because the equipment the required is really inexpensive. But it is more likely that harm will be done to aeroplanes as the employees scrape ice so the resulting aircraft care cost is could be really high. A propene ethanediol based de-icing fluid – Propylene ethanediol is a popular de-icing fluid and is regarded as non-toxic, hence it was chosen for farther probe.Decision MatrixThe interviews that were conducted with the stakeholders highlighted that some client demands are more of import than others. Although the importance of some specific demands differed in each stakeholder group four demands were systematically rated as indispensable. These standards were analysed in a determination matrix with weighing Markss taken from Table 1 Table 2- Decision Matrix which focuses on the alternate deinking methodsOptionEthylene Glycol( Benchmark ) APropylene GlycolInfrared + Propylene-glycolStandardsBurdeningtungstenRatingMarkRatingMarkRatingMarkSafetyA 5 2 10 4 20 7 35Life CostA 4 5 20 5 20 6 24SpeedA 3 A 5 15 A 4 16 6 18Environmental impactA 2 A 1 2 A 5 10 6 14EntireA 14 A 13 47 A 18 66 A 25 91 Harmonizing to this determination matrix the best de-icing solution should be based on a combination of infrared and propylene ethanediol de-icers is the best as this option has the highest sore. The 2nd best method would be to utilize an ADF which is based on propene ethanediol instead than ethylene ethanediol.SELECTION OF IDEASA comparing of ethylene-glycol and propylene ethanediols based de-icing fluidsThe most freezing point sedatives in aircraft de-icing fluids in the US are ethylene ethanediol ( EG ) and propylene ethanediol ( PG ) . Because PG and EG have a similar life-time cost, in this chapter the chemicals will be compared at a 50 % concentration by volume in footings of their safety, de-icing velocity and environmental impact because these are three of the most of import needs the stakeholders. Safety Ethylene ethanediol has a comparatively high toxicity when compared to Propylene-Glycol. It has been classed by the US Congress as a risky air pollutant ( HAP ) , if 2268 kilogram or more flights into the environment within 24 hours users are obligated to describe the event under the Comprehensive Environmental Response Compensation and Liability Act ( CERCL ) . However propylene ethanediol is non classified as a HAP, and users are non required to inform CERCL if it is released. Both chemicals are said to be non-lethal if worlds if they are breathed in with air or adsorbed through tegument. However, unlike PG, EG is toxic to worlds and mammals if it is ingested straight. Even though PG it is regarded as non-toxic it is still a wellness jeopardy because it uses O as it biodegrades which could do some beings to smother. De-icing Speed The freezing point of Propylene-glycol is -34oC which is somewhat higher than ethylene-glycol which freezes at -37oC. This is one of the grounds why MSP airdrome still uses EG. Another is that a lower volume of antifreeze is required for EG to accomplish the same freeze point depression as PG. MSP airdrome suffers severe conditions extremes so it needs to utilize an ADF which is dependable, particularly in highly cold conditions as this is by and large when it takes longer to defrost aircraft Propylene-glycol ‘s boiling point is 106oC whereas ethene ethanediol has a boiling point of 102.2oC for ethene ethanediol. In this instance Propylene-glycol is the better pick because it can reassign heat to frost at a higher temperature than ethylene ethanediol. Discussion There are some drawbacks with respect to utilizing ethylene ethanediol as a de-icing fluid, particularly refering its environmental impact. But, overall EG and PG have a similar de-icing public presentation degree.The Rate of Melting due to Heat Conduction EntirelyThe ADF is heated to 70oC before it is sprayed onto the plane, this heat entirely will do the ice to run through heat conductivity. The rate of this warming was calculated utilizing equation 1a, 1a ) Where Q= is the heat flow rate in the X-direction in kJ/s, A is the country normal to the way of heat flow in M2, dT/dx is the temperature gradient and K is the thermic conduction of ice The thermic conduction of ice at -20oC is 2.39 W/mK, the country normal to the way of heat flow is equal to the flying country of the Boeing 747 =541.2m2, the temperature alteration that occurs is ( 70oC- -20oc ) =90oC and the thickness of the ice x is 0.01m. Therefore the rate of heat transportation by the temperature of the de-icing fluid alone is 2a ) The reasonable heat is kJ ( App. 1, Eqn 12 ) The latent heat of merger is 1652612.4 kJ, ( App.1, Eqn 3 ) Summarizing the above gives the sum of het required to run the ice on a Boeing 747 from a starting temperature of -20oC which is Hence minimal clip that it would take to run the ice on the plane by heat conductivity entirely is This is a really fast clip, particularly as harmonizing to the undertaking brief, de-icing at MSP airdrome usually takes 10 proceedingss per plane. One ground ground for this difference is due to the fact that the ADF fluid is non ever in full contact with ice, merely its bottom surface is. Additionally these computations assume that heat transportation occurs over the whole of each flying equally, which is non the instance in existent life because de-icing fluid is sprayed onto the wing in different locations consistently. A concluding cause of this difference could be due to the fact that snow has a lower heat conduction, K, than ice and so any snow on a plane would take down the rate of heat transportation from the ADF.Entire SOLUTION TECHNOLOGYDrive-Through De-icingFigure 3 – An illustration of the thrust through de-icing engineering The concluding design construct was to carry on de-icing operations as a thrust through system. First the aircraft enters the Infrared airdock where and warm air blows snow of its wings whilst they are heated by infrared radiation for a typical continuance of 5-10 proceedingss. Ice on the plane thaws onto an inclined incline and the effluent is channelled into the waste aggregation zone. Water is channelled through bing storm H2O pipes into substructure to the located under the floor of the crop-dusting and waste aggregation country. The effluent is pumped out and transferred by a truck into the airdrome ‘s detainment pools. When the effluent has been removed compaction stoppers are removed and the plane moves into the spraying country. Here it is sprayed with propene ethanediol for up to 5 proceedingss to assist forestall any ice forming on it before takeoff. The propene ethanediol drains into a separate country of the aggregation chamber and is pumped to a detainment pool until it is due to be recycled. Finally the compaction plus are reinstalled so the system is ready to defrost another plane. Recycling Solution Minneapolis presently uses three Glycol Recovery Vehicles to roll up effluent. Using the IR installation eliminates the demand to defrost aircraft utilizing ethanediol by around 90 % , so no more of these vehicles will necessitate to be bought if the new engineering is adopted. Besides the airdrome has saved capital costs by utilizing their bing storm H2O drains to roll up both ethanediol and storm H2O. These storm drains can and should go on to be used if MSP airdrome adopts the Drive-Through De-icing system to salvage hard currency and clip during the installing of the new system. Harmonizing to ( Big book ) â€Å" Careful direction of the keeping systems enables the airdrome to roll up adequate effluent with high ethanediol concentrations to do glycol recycling/recovery economically feasible. † The bulk of ethanediol which is recycled is sold to makers who use it in other glycol-based merchandises. Analysis OF ECONOMIC VIABLITY Rate of return on investing ( ROI ) 3a ) Payback Time 3b )=2.5 old agesUnfortunately the payback clip on the thrust through de-icing method is non fast plenty to fulfill the Airport Directors at MSP who expect a payback clip of â€Å" 1.5-2 old ages † . A higher rate of return on investing would cut down the payback clip so it would be wise to look into extra ways to cut down the cost of de-icing utilizing this engineering, and ways to better its efficiency. Patent issues Because this entire solution engineering uses de-icing methods which have been used in industry antecedently, but it combines them in a alone manner it is hard to measure whether or non it can be patented. Furthermore, it is expected that it would take a long clip to patent the merchandise even if it were possible because of its complexness and usage of old de-icing thoughts. The writer has recommended that MSP airdrome consults a attorney sing these affairs if they do non necessitate to utilize the de-icing solution instantly. If MSP airdrome do necessitate to utilize the engineering instantly they might hold to pay licence fees to one or more patent proprietors. Decision The findings from this probe have shown that the solution engineering that MSP airdrome should utilize to better its aircraft de-icing solution involves utilizing infrared warming and a propene ethanediol as a utility chemical for ethylene-glycol. The procedure is called the â€Å" thrust through method † and the major advantages of this intercrossed solution are that it meets the demands of its stakeholders by being safe, holding a low life-time cost, fast aircraft de-icing rate and low environmental impact. Evidence of this has been provided through a determination matrix and several mathematical ratings. Unfortunately this solution has a payback clip of 2.5 old ages, so research should be carried out to uncover how to do the one-year rate of return on the investing higher. Finally, this intercrossed system uses patented engineering so MSP airdrome might hold to pay license fees for a figure of old ages if it used the thrust through method. However, after the payback period the one-year economy of $ 70,844,300 per twelvemonth outweighs any of these drawbacks. Further Recommendations Find ways to cut the operating cost of the Drive-Through De-icing system as this will raise the one-year rate of return that this engineering provides. If the rate of return is high plenty the payback clip will drop below 2 old ages and the airdrome directors in MSP will hold this demand fulfilled. Use hot air to blow snow off the aircraft in the IR airdock. This will assist to run the snow and ice excessively, nevertheless the cost of warmin+ 3.0g air may countervail the benefit of a faster de-icing clip. Nb, as shown by the weightings, tungsten, in Table 1, the life-time cost of the engineering is more of import that the de-icing velocity that it provides.MentionsBooks and DiariesBird J.O. , 2003, Science for technology, pp. 205, Newnes, 2003, UK Ketler P. , Mosher M. , Scott A. , 2008, Chemistry: The Practical Science, media enhanced edition, Cengage Learning, pp. 478, UK Kotz J.C. , Paul T. , Townsend R.J. , 2009, Chemistry and Chemical Reactivity, Cengage Learning, pp. 15, USA Tsokos K.A. , 2010, Cambridge Physics for the IB Diploma, pp. 172, Cambridge University Press, UK Sinnot R.K. , 2005, Coulson and Richardson ‘s Chemical Engineering Series: Chemical Engineering Design, pp. 439, Butterworth-Heinmann, UKOnline ResourcesMSP Airport, 2010, About Us, hypertext transfer protocol: //www.mspairport.com/about-msp.aspx, 24/10/2010 RSS Weather, 2003, Minneapolis-St. Paul, hypertext transfer protocol: //www.rssweather.com/climate/Minnesota/Minneapolis-St.Paul, 23/10/10 Airliners.Net, 2010, The Boeing 747-400, hypertext transfer protocol: //www.airliners.net/aircraft-data/stats.main? id=100, 20/10/2010 BBC, 25/10/2007, A380 superjumbo lands in Sydney, hypertext transfer protocol: //news.bbc.co.uk/1/hi/world/asia-pacific/7061164.stm, 19/10/2010 Energy Information Administration, October 2010, Electric Power Monthly, hypertext transfer protocol: //www.eia.doe.gov/cneaf/electricity/epm/epm.pdf, 15/10/2010 Wingss Magazine, 2007, Infrared De-icing: Giving glycol a tally for its money, hypertext transfer protocol: //www.wingsmagazine.com/content/view/1325/38/ , 23/10/10APPENDICIESAppendix 1Specifications 2 -The instance survey aircraft and its ice coverageThe mass of ice on a plane was calculated utilizing a worst instance scenario, which was that one of the biggest commercial rider planes ; the Boeing-747 ( BBC, 2007 ) needed to be de-iced. It was assumed that the top country of both its wings was covered by a 1cm thick bed of ice. Flying country ( Boeing-747 ) = 541.2 M2 Ice Thickness = 0.01m Ice Coverage 100 % of flying country ( 1 ) Density of ice, I?ice = 917kg/m3 ( Kotz, 2009 ) ( 2 )Specifications 3 -Heating DutyThe ice on the aircraft needed to be provided with adequate energy to get the better of its 333kJ/Kglatent heat of merger, L, to run. The sum of heat energy, Q, required to accomplish this was calculated utilizing Equation 3 ( 3 ) ( Bird, 2003 )Specifications 4 – The utility de-icing fluidIn this subdivision the volume of ethene ethanediol and propene ethanediol needed to defrost a individual Boeing-747 will be calculated and compared. The prosodies are based upon a 50 % by volume solution of each chemical. Volume of Ethylene Glycol Required The freeze point depression of an ideal solution is given by the expression ( 5 ) Where a?† Tf represents the freeze point depression, m, is the solute concentration and Kf represents the freeze point depression invariable of H2O which is 1.86A °KA ·kg/mol ( Kilter P. , Mosher M. and Scott A. Andrew Scott, 2008 ) The coveted freeze point depression, a?† Tf is 20oC because winter temperatures in MSP autumn to that temperature, harmonizing to the undertaking brief. ( 6 ) The figure of moles of ethanediol required to accomplish the freeze point depression: ( 7 ) The chemical expression of ethylene-glycol is CH2OHCH2OH Mr Carbon = 12, Oxygen=16, Hydrogen=1 iMr ethene ethanediol = 2*16+2*12 + 1*6= 62 g/mol Therefore the mass of ethylene-glycol required per plane is: ( 8 ) The denseness of UCAR ADF at 20oC is 8.9 lb/gal ( US ) ( 1.07 kg/L ) ( SAE AMS 1424 Ethylene Glycol-Based Type I Fluids page 8 ) Therefore the volume of ethylene-glycol required is at least 408 US gallons ( 9 ) Because the de-icing fluid used in MSP airdrome is 50 % ethylene-glycol and about 50 % H2O, defrosting a individual plane would necessitate duplicate the sum of ADF which works out at 6,184 liters.The cost of ethene ethanediol per aircraftIn general the chemical constituents in de-icing fluids, such as H2O, have a sum cost which is well less than that of ethylene-glycol. Hence the cost of these constituents in de-icing unstable solutions as deemed insignificant and ignored. Harmonizing to the airdrome director that was interviewed the minimal cost of a gallon of ethene ethanediol is $ 5 per US gallon ( 10 ) In MSP airdrome there is an norm of 293 takeoffs per twenty-four hours from 5 de-icing tablets ( MSP Airport, 2010 ) Assuming that during the de-icing season in MSP lasts 157 yearss and every plane needs to be de-iced the one-year cost of ADF is about ( 11 ) Reasonable heat required Harmonizing to the undertaking brief winter temperatures in Minneapolis Saint Paul autumn to-20oC. Ice must be brought to its runing point of 0oC before it can undergo a stage alteration from solid to liquid. Where Cp is the specific heat capacity of ice at -20oC which is 2 kJ/kg/K, ( Tsokos KA, 2010 ) , m is the mass of ice and a?† T is the temperature difference ( 12 ) Harmonizing to Wingsmagazine ( 2010 ) Ian Sharkey, the manager of de-icing services, with Radiant Aviation Services stated that during an ice storm on March 15-16, 2007 his squad had an â€Å" norm aircraft â€Å" block † clip ( aircraft brakes on to brakes off ) of less than 43 proceedingss for big aircraft † hence it was assumed that the Boeing 747 could be de-iced in this timeframe every bit good. This information was used to gauge the power that the IR deice would necessitate to convey the ice on an aircraft from -15oC to 0oC in 43 proceedingss, ( 13 ) Latent heat required Next was calculated which is the power needed to run the ice on the aircraft at 0oC in 47 proceedingss. ( 14 ) Therefore the entire power needed to run ice on the aircraft in 43 proceedingss by utilizing infrared deink engineering, QIR is ( 15 ) To do the value of QIR more realistic some premises refering the sum of energy loss, between the heat beginning and the wing were added. From this the excess power that the optical maser will necessitate to give out in order to get the better of the inferred energy lost as between the beginning and its finish ( transport efficiency ) and the energy lost due to contemplation by the ice on the surface of the wing ( absorption efficiency ) was calculated. Laser device efficiency, I ·laser=0.33, Transport efficiency, I ·transport = 0.75 Absorption efficiency, I ·absorbtion =0.75 The optical maser device, conveyance and soaking up efficiencies cut down the sum of energy that heats the ice. This is called the efficiency loss, 1-I ·i, and it was calculated as follows,( 16 ) Hence, ( 17 ) Similarly, ( 18 ) Hence, the per centum excess energy, , required to cover for these energy losingss is ( 19 ) In existent footings ( 20 ) From this the entire IR power required to run ice from ice from its initial temperature of -20oC ( 21 ) = 586kW+227.9kW +1090.5kW= 1904.4 kilowattCost of de-icing utilizing IR energyConvert to kWh, The entire IR energy demand was converted into kWh as the de-icing clip of about 43 proceedingss for a Boeing 747 in highly rough conditions ( wingsmagazine, 2010 ) ( 22 ) In Minnesota during 2010 the â€Å" Average Retail Monetary value of Electricity to Ultimate clients † within was $ 0.068 per kWh ( Electric power monthly, 2010 ) Therefore the estimated the cost of defrosting a Boeing 747, by IR radiation in 43 proceedingss is: ( 23 ) We must account for the cost of anti-icing fluid ; this 10 % of the normal sum of ethanediol ( 24 ) Hence, ( 25 ) This system runs for 157days, with 293 takeoffs per twenty-four hours which gives an one-year running cost of approximately $ 26.8 million per tablet. ( 26 ) The capital cost of the IR de-icing tablets The JFK airdrome is a hub airdrome runs commercial rider flights in a similar manner to the the MSP airdrome. The JFK airdrome cost â€Å" $ 9.5-million † and can keep big aircraft such as the Boeing 747, which this study focuses on. Due to these similarities it can be assumed that the cost of the IR installation in 2010 will be around US $ 9.5 million every bit good. However a cost index should be used because the IR installation in JFK airdrome was commissioned in 2006 ( Wingsmagazine, 2010 ) The cost of the hanger was scaled up utilizing the CEPCI, so that it would be accurate for 2010. The latest information available to us was the CEPCI for 2008, it was 575.4 so and as of April 2010 it is 55.3 ( Access Intelligence, LLC 2010 ) . Taking this into history an estimation of the cost of the hanger in 2010 was made. ( Eqn 27 ) ( 27 ) There are five IR de-icing tablets so the entire capital cost is $ 49,219,345 Fixed cost – Staff fees The IR airdock, spray country and aggregation country will each hold a supervisor and operator, working an 8 hr, 9AM-5PM displacement for 5 yearss per hebdomad. Their wages will be ?18,000 ( technician ) and ?24,000 ( supervisor ) . The senior director for each de-icing tablet will hold a wage of $ 30,000. MSP will necessitate 5 new IR de-icing tablets to replace the 5 EG de-icing tablets that they presently use.

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