Tuesday, August 20, 2019
Communication Essay -- Effective Communication, Barriers
This assignment discusses barriers to, and methods of, effective communication with people who are confused by reflecting on my experience in communicating with an elderly confused patient. Specifically, and within the scope of this assignment, I reflect on two methods of effective communication with elderly confused patients; one verbal (reality orientation) and one non-verbal (touch). During my first placement I was asked to assist in the care of Elsie (pseudonym), an 86 year old lady admitted to hospital with a fracture to her hip and a urinary tract infection (UTI). Elsie was suffering from frequent periodic episodes of confusion; however this was not due to a diagnosed cognitive disorder. Manos and Braun (2006) and Keenan (2011a) say that elderly patients with a bone fracture or a UTI often present with confusion; which is a disorder of brain function (Manos and Braun, 2006). The elderly are more prone to confusion when they are ill because, with increasing age, kidney size and renal blood flow decrease causing a reduction in renal threshold (Keenan, 2011b). When Elsie was in a confused state I found it difficult to interpret what Elsie was trying to communicate to me because her responses to my questions did not make sense. When communicating with Elsie I consciously used the active listening SOLER (Sit square-on, Open posture, Lean forward, Eye contact, Relax) model (Egan, 2010) that I had been taught at University. I used this to show Elsie I was listening and to help me try to understand what Elsie was communicating. I felt frustrated because although I used SOLER, slowed down my normal pace of communication and repeated what I was saying, Elsieââ¬â¢s responses still did not make sense. The National Health Service (NHS, 2... ...aching on a patientââ¬â¢s personal space. I should therefore use a calm reassuring voice with the use of touch. I find it comforting to know that Oliver and Redfern (1991) say that the use of touch is a skill that can be acquired and learnt. Reflecting on my experience communicating with Elsie I have learnt about two communication techniques (reality orientation and the use of touch) that will help me communicate more effectively with an elderly confused patient. I have realised I need to find out more about using expressive touch in communication and the use of other verbal and non-verbal techniques that can help in communicating with elderly confused patients, such as effective use of paralinguistic communication. This will give me greater confidence in communicating with elderly confused patients because I will have additional strategies to bring to the situation.
Monday, August 19, 2019
Lyme Disease :: essays research papers fc
Although most people don't realize it, one of the most weakening diseases of the world can often be found crawling around in the shrubs and tall grasses of a personââ¬â¢s backyard .It does not mean that only dirty yards have this disease but it is found in every Americans backyard. The disease is called Lyme disease. Now I will be elaborating on the disease. à à à à à Every disease has a causative agent. This agent is a harmful bacterium that causes the disease. The causative agent for this disease is the bacteria Borrelia burgdoferi. à à à à à A disease is transmitted in one way or the other. Lyme disease is transmitted through a vector. The vector of the disease is an infected deer tick. The deer tick has to bite a person to spread the disease. When a deer tick bites a person (sucks blood), the Borrelia burgdoferi bacteria is transmitted into the persons body. à à à à à This disease has many symptoms. These symptoms are similar or same to many other illnesses. That is the reason why many doctors get confused when they were researching this disease. There are three stages of symptoms for the disease. In the first stage, the Erythema Migrans, a bullââ¬â¢s eye rash might appear on the bitten area. In the second stage, the Disseminated Lyme Disease, you may experience a fever, sore throat, fatigue, headache, stiff neck, muscle ache, and general malaise. In the third stage, the Chronic Lyme Disease, you may experience aching joints. à à à à à All diseases focus on an organ or parts of the body. Lyme disease focuses on the joints. This will cause joint damage and go on to Lyme Arthritis. The disease also focuses on the nerves. This can cause mental problems and go on to Tics. It also focuses on the heart. This will slow down a personââ¬â¢s heartbeat. à à à à à A person can prevent the disease. And, there are many ways to do this. One is to put on insect repellent with Deet. Another is to wear long sleeves and long pants. Also, tuck your pants in socks. And, wear a hat. Finally, stay away from wooded areas. à à à à à Every disease should have a treatment. Lyme disease has many treatments. Antibiotic drugs such as doxycline, amoxicillin, penicillin, and erythromycin are treatments for Lyme disease. There is a new vaccine for the disease. Its name is LYMErix TM. à à à à à Diseases lie in a large geographical content. Lyme disease is mostly found in the United States of America and Europe.
Sunday, August 18, 2019
Albert Einstein Essay -- physics science mathematics
Albert Einstein One of the greatest heroes of American(and international) science and culture in the past century has been German physicist Albert Einstein. Born in 1879, Einstein used his early years to educate himself and began to think up his own methods for solving his newly found inquiries into science and higher-level mathematics. In a short time during the beginning of the twentieth century, Einstein pulled together his research and incredible intellect for unprecedented gains in science and theory used throughout the world. One need not go far to view the incredible impact that innovative genius Albert Einstein has had upon the twentieth century. His impact stretches far beyond the reaches of physics and life in the early 1900's. This physicist of phenomenal philosophy, logic, and imagination has been and still is the subject of countless catch phrases and expressions of intelligence. Albert Einstein is a forerunner of influential American icons. Because of his contribution to American scie nce and society as an immigrant, intellectual accomplishments, and discoveries in nuclear technology, it is my belief that Albert Einstein was the most influential person of the twentieth century. First of all, Albert Einstein was the most important figure of the twentieth century because of his contribution to American science and society as an immigrant. This is foremost important because of the U.S.'s status as the premier nation of the world. Albert Einstein has had one of the greatest ever influences upon the American way of life. He is responsible for many of the most famous scientific and philosophical standards used in America today. He was born in Germany in 1879, but Albert did not come to America until 1933, when he feared for his life and fled from Nazi Germany. It was at this time that he was at his greatest fame.(PBS 1) He then began his work for the United States. His discoveries have impacted all facets of American culture. The sophisticated Special Theory of Relativity in physics that he created models the behavior of the entire universe. As stated on Nova, General Relativity has spawned the most important results in modern astronomy.(Levenson 4) Perhaps his largest contribution to America, Albert Einstein played a role in preserving American power. Einstein provided the biggest contribution to American science, setting most precedents fo... ...ks Cited Clark, Ronald W. Einstein: The Life and Times. New York: Avon, 1984. Einstein, Albert. Relativity: The Special and General Theory. Tran. by Robert W. Lawson. 15th ed. New York: Bonanza-Crown, 1961. Einstein, Albert. The World as I See It. Translated by Alan Harris. Carol Publishing Group Edition. New York: Carol, 1995. Elert, Glenn. "Albert Einstein's letters to President Franklin Delano Roosevelt." 1997. Online. Internet. Available (15 Nov. 2009). "Knowledge/Imagination/Creativity." Words of Wisdom from Albert Einstein . Online. Internet. Available (2 Nov. 2009). Levenson, Thomas. "Genius Among Geniuses." Einstein Revealed. 1996. Online. Internet. Available (3 Nov. 2009). PBS (Nova). "Timeline." Einstein Revealed. 1996. Online. Internet. Available (3 Nov. 2009). "War/A-Bomb." Words of Wisdom from Albert Einstein. Online. Internet. Available (2 Nov. 2009). Albert Einstein Essay -- physics science mathematics Albert Einstein One of the greatest heroes of American(and international) science and culture in the past century has been German physicist Albert Einstein. Born in 1879, Einstein used his early years to educate himself and began to think up his own methods for solving his newly found inquiries into science and higher-level mathematics. In a short time during the beginning of the twentieth century, Einstein pulled together his research and incredible intellect for unprecedented gains in science and theory used throughout the world. One need not go far to view the incredible impact that innovative genius Albert Einstein has had upon the twentieth century. His impact stretches far beyond the reaches of physics and life in the early 1900's. This physicist of phenomenal philosophy, logic, and imagination has been and still is the subject of countless catch phrases and expressions of intelligence. Albert Einstein is a forerunner of influential American icons. Because of his contribution to American scie nce and society as an immigrant, intellectual accomplishments, and discoveries in nuclear technology, it is my belief that Albert Einstein was the most influential person of the twentieth century. First of all, Albert Einstein was the most important figure of the twentieth century because of his contribution to American science and society as an immigrant. This is foremost important because of the U.S.'s status as the premier nation of the world. Albert Einstein has had one of the greatest ever influences upon the American way of life. He is responsible for many of the most famous scientific and philosophical standards used in America today. He was born in Germany in 1879, but Albert did not come to America until 1933, when he feared for his life and fled from Nazi Germany. It was at this time that he was at his greatest fame.(PBS 1) He then began his work for the United States. His discoveries have impacted all facets of American culture. The sophisticated Special Theory of Relativity in physics that he created models the behavior of the entire universe. As stated on Nova, General Relativity has spawned the most important results in modern astronomy.(Levenson 4) Perhaps his largest contribution to America, Albert Einstein played a role in preserving American power. Einstein provided the biggest contribution to American science, setting most precedents fo... ...ks Cited Clark, Ronald W. Einstein: The Life and Times. New York: Avon, 1984. Einstein, Albert. Relativity: The Special and General Theory. Tran. by Robert W. Lawson. 15th ed. New York: Bonanza-Crown, 1961. Einstein, Albert. The World as I See It. Translated by Alan Harris. Carol Publishing Group Edition. New York: Carol, 1995. Elert, Glenn. "Albert Einstein's letters to President Franklin Delano Roosevelt." 1997. Online. Internet. Available (15 Nov. 2009). "Knowledge/Imagination/Creativity." Words of Wisdom from Albert Einstein . Online. Internet. Available (2 Nov. 2009). Levenson, Thomas. "Genius Among Geniuses." Einstein Revealed. 1996. Online. Internet. Available (3 Nov. 2009). PBS (Nova). "Timeline." Einstein Revealed. 1996. Online. Internet. Available (3 Nov. 2009). "War/A-Bomb." Words of Wisdom from Albert Einstein. Online. Internet. Available (2 Nov. 2009).
Saturday, August 17, 2019
Psychology and Care Plan Essay
Questions 1 ââ¬â Be able to assess the development needs of children or young people and repare a development plan. 1.1 ââ¬â Explain factors that need to be taken into account when assessing development. * Progress * Improvement * Behaviours * Look at goals within care plan are they on track? * What activities they are partaking in and how well are they dealing with them. * Whether they are interested, compliant and accepting or not. 1.2 ââ¬â Assess a child or young personââ¬â¢s development in following areas :- physical, communication, intellectual/ cognitive, social, emotional and behavioural and moral. A) Please see attached sheets of evidence (Daily session record and behaviour tick sheet) 1.3 ââ¬â Explain the selection of assessment methods used. A) These methods are used to monitor mood, behaviour, what the young person has been doing during that session also the date and time of the session, so we can monitor if something is a regular occurrence on or at a certain time of day (looking for patterns). 1.4 ââ¬â Develop a plan to meet the needs of a child or young person in the work setting. A) Please see attached care plan 1 ââ¬â Be able to promote the development of children or young people 2.5 ââ¬â Implement the development plan for a child or young person according to own Role and responsibilities, taking into account that development is holistic and interconnected. * Monitor the care plan on a daily basis to be aware of any changes and implement if necessary. * If I notice certain areas of the care plan are not working efficiently to meet the needs of the young person and could be improved upon it is my responsibility to report this back to the correct senior member of staff, so they can review and update if necessary. * When working with the young person if I notice any changes/ unusual behaviours to report to senior. 2.6 ââ¬â Evaluate and revise the development plan in light of implementation. A) In reading the care plan since it was last reviewed I would advise it does need an update in regards of :- * The YPââ¬â¢s getting up in the morning as states that he is not good at getting up, but now is a lot better and tends to get straight up and for a shower with no issues and with little prompting. * The care plan states what the YP likes for breakfast but does not state that he also likes to make it himself. * Again stating the YP is getting better at going out and likes to go out, but doesnââ¬â¢t state specific preferences as he particularly likes to go to the park on the swings. * In the care plan I have noticed it doesnââ¬â¢t make aware that the YP finds his PECS strip useful at times instead of verbal communication and also avoids confusion with the YP * All others areas of the care plan remain unchanged at this time but will continue to review and monitor, so that any changes can be implemented asap to enable improvement and progress for the YP. 2.3- Explain the importance of a person centred and inclusive approach and give examples of how this is implemented in own work. * To meet the INDIVIDUAL needs of the Young person to ensure they are gaining all the positive effects and influences around them and developing at their individual pace. * Individual care plans of which the Young person has input * Following and adhering to the care plans * Residential meetings ââ¬â asking the young people if they are happy with surroundings, if not what they would like to change. * Giving the YPââ¬â¢s choices of meals, activities and clothing to show individuality and personality 2.4ââ¬â Observation 2.5 ââ¬â Encourage children or young people to actively participate in decisions affecting their lives and the services they receive according to their age and abilities. * Residential meetings * Asking likes and dislikes * Giving choices around personal hygiene/ dietary needs * Giving choice in social activities * Choice of clothing for personal identity * Supporting in finance matters, giving them a choice what to spend their personal finances on. * Given as much choice and inclusion in decisions to meet individual needs 2 ââ¬â Be able to respond to inappropriate behaviour 3.7 ââ¬â Explain the features of an environment or service that promotes the development of children and young people. A) Within the service to be aware through care plans of the trigger points of YPââ¬â¢s that initiate the inappropriate behaviour B) To be aware through the care plan how best to respond to the individual to defuse inappropriate behaviour C) Use positive reinforcement and praise when individual responds well and behaviour improves, hopefully enabling young person to develop and recognise themselves that the inappropriate behaviour is not rewarded or acceptable, hopefully making the occurrence of inappropriate behaviour less often. 3.8 ââ¬â observation 3 ââ¬â Understand how working practices can impact on the development of children and young people. 4.9 ââ¬â Explain how own working practice can affect children and young peopleââ¬â¢s development. * My different approaches and attitude can affect the YPââ¬â¢s mood, behaviour etc as if I appear abrupt or aggressive in manner it may cause the YP to become aggressive themselves or non-cooperative and act out. * If I do not follow care plan this may have an effect on the YP as I am not meeting their specific needs which may cause agitation as they may not be getting what they need. * If I follow the care plans and have a happy positive attitude towards the YP it is more likely they will be content. 4.10 ââ¬â Explain how institutions, agencies and services can affect children and young peopleââ¬â¢s development. A) They can have a positive effect on development by setting guidelines and standards to follow that are suitable for the individuals needs and ensuring reviews are done regularly to keep up to date with any changes and ensuring all the services etc are working with one another with a clear exchange of information to be able to work towards a common goal for the best outcome for the individuals development. B) If the above did not happen it would have a negative effect on the individual as no one could assure them that the quality of standards and individual needs are being met and this would have a negative impact on their development as structure and communication is key. 4 ââ¬â Be able to support children and young peopleââ¬â¢s positive behaviour 5.11 ââ¬â observation 5.12 ââ¬â Evaluate different approaches to supporting positive behaviour. A) When using different approaches such as verbally praising and positive actions to reinforce positive behaviour, this encourages positive responses and outcomes enabling them to complete set tasks and activities within their care plan. 5 ââ¬â Be Able to support children and young people experiencing transitions 6.13 ââ¬â Explain how to support children and young people experiencing different types of transitions. A) Being aware of the YPââ¬â¢s fears and concerns of the transition by communicating with them. B) Explaining the reason to the YP of why transition taking place C) By providing initial support and on-going if required D) Accompany them during transition E) Make others aware of the concerns/ support needs the YP may have F) On-going discussions with the YP to allow them to express any fears or concerns with an on-going transition.
Friday, August 16, 2019
Ethics and Compliance
Ethics and Compliance Fabian Marrero, Kevin Martinez FIN/370 March 9, 2013 Norberto Molina Perez Ethics and Compliance In this paper we will as a team: Assess the role of ethics and compliance in your organizationââ¬â¢s financial environment. Describe procedures your organization has in place to ensure ethical behavior. Explain how financial markets work in the United States. Identify processes the organization uses to comply with SEC regulations.Evaluate your organizationââ¬â¢s financial performance during the past 2 years, using financial ratios. Calculate the ratios for each year: Current, Debt, Return on equity Discuss the trend for each ratio and what it tells you about the organizationââ¬â¢s financial health. The business code and ethics code at the company Loweââ¬â¢s stores begins with the board of directorââ¬â¢s right through to the newest of workers. The requirement to read and follow the code of conduct is vital for all who are associated or represented by th e company.Compliance with governmental regulations involving ethics is valued by Loweââ¬â¢s and held strong. The application of ethics financially, under section B of the code of conducts states: ââ¬Å"employees and members of their immediate families should not have any financial interest, direct or indirect, in any organization that is or is seeking to be a supplier of merchandise or other property or services to the companyâ⬠(Loweââ¬â¢s, 2012).Areas of importance that are also covered in the codes pertaining to financial concerns are ââ¬Å"payments to governmental officials or other persons, the importance of accurate books and records along with adhering to internal controls to financial reporting, protection, and proper use of company assets, public company reporting, and insider trading according to the code of conduct. â⬠(Loweââ¬â¢s, 2012). The possession of information or knowledge of a transaction or attempted transaction must be informed to the emplo yeeââ¬â¢s direct supervisor.There is a strong encouragement towards employees to utilize the businessââ¬â¢s open door policy or simply by using the website at www. ethicspoint. com (Loweââ¬â¢s, 2012). Any situations involving any executive officers such as principal executive officers, financial officers, are concern given charge to the general counsel and chief compliance officer. Zero tolerance is given for any retaliation towards any individual that goes against the reporting of any violations of the conduct codes.The ability of the exchange of previously issued financial assets from individuals to businesses is the main purpose of the financial markets in the U. S. The actual structure brings borrowers, investors, and intermediaries that put together the financial institutions and markets that put both together as a whole. Finance companies, insurance, investment companies, investment banks, are some of the organizations that can compromise the marketplace. The majority of the time individuals deal with commercial banks on a daily basis.The recession of 2008 what greatly due to some non bank intermediaries that made a great number of citizens remove their funds from financial marketplaces. Securities play a significant role in the marketplace in addition to these organizations. These markets are made up of primary and secondary markets. The primary markets are made up of new securities so firms may utilize them to raise capital to assist with financing. The transference of previously issued securities that investors move within each other is secondary markets.Securities can consist of common stock, preferred stock, equity, and debt securities. Finally, financial markets provide the money necessary by companies and individuals and create links between investors and corporations. Because of the stock market crash of 1929 the U. S. Securities and Exchange Commission was created. S. E. C. mission is to regain the confidence in investors in capital mar ket by issuing information that is reliable with honest and clear rules. Under this commission any publically traded entity must disclose their financial information by law.This allows the investor the information necessary about selling, buying or even holding a specific security. Under the SEC regulations, publically traded organizations must disclose their financial information. This information provides investors common knowledge about buying, selling or holding a particular security. Last but not least, ââ¬Å"the S. E. C. s primary responsibilities are to protect investors, maintain fair, orderly, and efficient markets, and facilitate capital formationâ⬠(U. S. Securities and Exchange Commission, 2012). Loweââ¬â¢s has been a publicly held company since October 10, 1961. Loweââ¬â¢s listââ¬â¢s on the New York Stock Exchange with shares trading under the symbol LOW. The New York Stock Exchange is the largest financial industry brands in the world. Membership with th e NYSE has made one regarded as a valuable property since 1868. In April 2006, the NYSE went both electronic and public that the exchange was a membership-only organizationâ⬠(New York Stock Exchange, 2012). Since Loweââ¬â¢s is a publically traded entity, it must file reports with the Securities and Exchange Commission.Some important documents such as, Annual reports, quarterly, current and any other reports necessary for the S. E. C. to properly evaluate the business and its use for investors. Financial reports must have accuracy and be in full compliance with the regulations of the SEC. Finance statements together with the independent registered accounting firm by the name of ââ¬Å"Deloitte and Touche LLPâ⬠show that this practice ââ¬Å"acknowledges adequate internal control over financial reporting as defined in Rule 13a-15(f) under the Securities Exchange Act of 1934â⬠(Loweââ¬â¢s 2012).This basically means that this firm is agreeing to give their full ass urance to the company that their finance reporting will be reliable and will present accurate financial statements for publishing. Reports to the SEC are as follows: Balance sheets, consolidated statements, statements of cash flows, notes to consolidated financial statements, statements of earnings. Serious violations from organizations of misleading information, fraudulent accounting practices, and even insider trading can cause SEC to use civil enforcement against a business for security law violation.EDGAR (Electronic Data Gathering, Analysis, and Retrieval system) is a automated collection and validation system that by law is required to file forms. ââ¬Å"The primary purpose of EDGAR is to increase the efficiency and fairness of the securities market for the benefit of investors, corporations, and the economy by accelerating the receipt, acceptance, dissemination, and analysis of time-sensitive corporate information filed with the agencyâ⬠according to the (U. S. Securitie s and Exchange Commission, 2012).Historical ratios in comparison to a businessââ¬â¢s current period ratios to determine if a firmââ¬â¢s financial status is growing or in deterioration. Ratios illustrate a companyââ¬â¢s performance and current ratios permit a companyââ¬â¢s liquidity by putting in comparison current assets and current liabilities. Measurement of debt ratio shows the amount of assets financed by borrowing. The rate of return earned by common shareholdersââ¬â¢ in the firm is known as return on equity, and finally accounts receivable turnover ratio shows the amount of times that it rolls over throughout the year.Throughout 2010 the economy was demonstrating sings of recuperation, but increasing rates of unemployment were visible in the home improvement industry. A decline in the value of property, tight credit for consumers, and disposable income was slow to grow. Illustrations below show the continued growth in the business. Growth and stability and above all, growth in the long run show that Loweââ¬â¢s has expectations to maintain a flow of cash throughout the next few years. Financial Performance of Loweââ¬â¢s: Current Ratio | Debt Ratio | 2010 | 2010 | 3005000 = 2. 37 times | 13936000 = 42. 2% | 13936000 | 33005000 | | | 2011 | 2011 | 33699000 = 2. 16 times | 15587000 = 46. 3% | 15587000 | 33699000 | Return on Equity | 2010 | | 1783000 x 4815 x __1__4818 3300500 1-0. 42 | 36. 53 x 0. 0015 x 1. 72 = 9. 4% | | 2011 | | 2010000 x __50208__ x ___1___50208 33699000 1-0. 463 | 40. 03 x 0. 0015 x 1. 86 = 11. 2% | Accounts Receivable Turnover Ratio 2010 | 2011 | 32250000___ = 0. 42 days | 34790000___ = 0. 49 days | 208000/365 days | 193000/365 days | | |To finalize the company we have chosen continues to follow its ethical behavior tradition within the home improvement world. The business will keep with updating codes of ethics as the demand for the best environment for customers is what they strive for. SEC assures that Loweââ¬â ¢s continues to follow old and new regulations always. The financial performance is visible proof of their continued effort for improvement. With the information given we can clearly see that Loweââ¬â¢s will keep in the home improvement industry as one of the major players in the years to follow.References Loweââ¬â¢s. (2012). Investor Relations. Retrieved from http://phx. corporate-ir. net/phoenix. zhtml? c=95223&p=irol-IRHome Loweââ¬â¢s. (2012). Loweââ¬â¢s 10-k annual report. Retrieved http://phx. corporate-ir. net/phoenix. zhtml? c=95223&p=irol-reportsannual New York Stock Exchange. (2012). History. Retrieved from http://nyse. nyx. com/history U. S. Securities and Exchange Commission. (2012). What we do. Retrieved from http://www. sec. gov/about/whatwedo. shtml
Thursday, August 15, 2019
Skema Answer Manufacturing Proces 2
FACULTI OF MECHANICAL ENGINEERING UNIVERSITI MALAYSIA PAHANG BMM3643 (Sem II 2012/13) Assignment #2 1. a) Define the various regimes of cold working,warm working,and hot working in terms of the melting point of the material being formed. b) Indicate some of the advantages of cold working relative to warm and hot working. c) What are some of the negative aspects of hot working? (8 marks) Answer a) The temperatures required for hot working generally exceed 0. 6 times the melting point of the material on an absolute temperature scale.Cold working generally requires temperatures below 0. 3 times the melting point, and warm working is the transition region, between 0. 3 and 0. 6 times the melting point. b) Advantages of cold working are; i) better accuracy, ii) better surface finish, iii) increased strength due to work hardening, iv) possible directional properties due to grain flow, and v) no heating of work required. c) Disadvantages associated with hot working involve the reactions whi ch may be promoted by elevated temperature, such as rapid oxidation.Tolerances are poorer and the metallurgical structure will be nonuniform if the amount of deformation or thermal history varies throughout the product. 2. a) What is the difference between open-die and impression-die forging? b) Explain the reasons why the flash assists in die filling, especially in hot forging. c) Why are heated dies generally employed in hot-press forging operations? (8 marks) Answer a) Open-die forging does not confine the flow of metal in all directions, so the final shape is dependent upon the manipulation and skill of the equipment operator.Impression-die forging operations confine metal flow in all directions to provide good repeatable control of size and shape. b) The flash is excess metal which is squeezed out from the die cavity into the outer space between the two dies. The flash cools faster than the material in the cavity due to the high a/h ratio and the more intimate contact with the relatively cool dies. Consequently, the flash has higher strength than the hotter workpiece in the die cavity and, with higher frictional resistance in the flash gap, provides greater resistance to material flow outward through the flash gap.Thus, the flash encourages filling of complex die cavities. c) Heated dies are usually employed in press forging because the long time of die contact with the hot workpiece would otherwise permit considerable surface cooling and could produce cracking of the surface. 3. d) List some of the products produced on a rolling mill. e) In rolling of steel, what are the differences between a bloom, a slab, and a billet? f) Rolling may be described as a continuous forging operation. Is this description appropriate? Explain. (8 marks) Answer ) Rolled products include flat sheet and plate stock, round bar and rod stock, rails, structural shapes such as Ibeams and channels. b) A bloom is a rolled steel workpiece with a square cross section of about 150 mm b y 150 mm. The starting work unit for a bloom is an ingot heated in a soaking pit. A slab is rolled from an ingot or a bloom and has a rectangular cross section of about 250 mm by 40 mm. A billet is rolled from a bloom and has a square cross section of about 40 mm by 40 mm. c) This is a good analogy. Consider the situation of forging a block to a thinner cross section through ncrements (as in incremental forming). As the number of stages increases, the operation eventually approaches that of the strip profile in rolling. 4. g) Distinguish between direct and indirect extrusion. h) What is centerburst defect? How would you go about preventing centerburst defects in extrusion? i) What are some of the attractive features of the extrusion process? (8 marks) Answer a) In direct extrusion, also known as forward extrusion, a metal billet is loaded into a container, and a ram compresses the material, forcing it to flow through a die opening at the opposite end of the container.In indirect ext rusion, also known as backward extrusion, the die is incorporated into the ram, and as the ram compresses into the metal billet, the metal is forced to flow through the die opening in a direction that is opposite (backwards) of the ram motion. b) Centerburst defects are attributed to a state of hydrostatic tensile stress at the centerline of the deformation zone in the die. The two major variables affecting hydrostatic tension are the die angle and extrusion ratio.These defects can be reduced or eliminated by lowering the die angle, because this increases the contact length for the same reduction and thereby increases the deformation zone. Similarly, a higher extrusion ratio also increases the size and depth of the deformation zone, and thus will reduce oreliminate the formation of these cracks. c) The extrusion process offers a number of attractive features. Almost any crosssectional shape can be extruded, including many that could not be achieved by rolling. Size limitations are f ew. No draft is required, and the amount of reduction in a single step is limited only by the capacity of the quipment. Frequently only one die is required for a product. Because only a single die change is required to change products, small production quantities are economically feasible. Dimensional tolerances are quite good. 5. j) What is wire drawing and bar drawing? k) Why are multiple passes usually required in wire-drawing operations? l) Name the important process variables in drawing, and explain how they affect the drawing process. (8 marks) Answer a) Wire and bar drawing are bulk deformation processes in which the cross section of a wire or bar is reduced by pulling (drawing) it through a die opening. ) Because the reduced section of material is subjected to tensile loading in the wire drawing process, the possible reduction is limited by the onset of fracture. In order to affect any significant change in size, multiple draws are usually required. c) The important variable s include: * Yield stress, Y ; it directly affects the draw stress and die life. * Die angle, ?. The die angle in the deformation zone affects the redundant work; in the entry area, the die angle is important for encouraging lubricant entrainment. * Friction coefficient, ?. The friction coefficient affects the frictional component of work and, hence, the draw stress. Reduction in area. As described, there is a limit to the reduction in area that canbe achieved in drawing. * Lubrication condition. Effective lubrication reduces friction, but also may lead to a rough surface due to the orange peel effect. 6. m) Estimate the roll force and power for annealed low-carbon steel strip 200 mm wide and 10 mm thick, rolled to a thickness of 6 mm. The roll radius is 200 mm, and the roll rotates at 200 rpm. Let ? = 0. 1. n) Plot the force vs. reduction in height curve in open-die forging of a solid cylindrical, annealed copper specimen 2 in. high and 1 in. n diameter, up to a reduction of 70%, f or the cases of (a) no friction between the flat dies and the specimen, (b) ? = 0. 25, and (c) ? = 0. 5. Ignore barreling and use average-pressure formulas. (Given : For annealed copper we have K = 315 MPa = 46,000 psi and n = 0. 54) Answer a) The roll force can be estimated as below; L=R? h=2004=28. 3 and have=10+62=8 mm From Table 2. 3 on p. 37, K = 530 MPa and n = 0. 26. The strain is ? =ln106=0. 5108 The average yield stress can be obtained from Eq. (2. 60) on p. 71 as Y=K? n+1n+1=530(0. 5108)1. 261. 26=180 MPa and Y'=(1. 15)Y=180 MPa Therefore, F=L?Y'1+? L2have =0. 02830. 2(207)1+0. 1(28. 3)2(8) =1. 38 MN The power per roll is given by; P = ? FLN60,000=? (1. 38 ? 106)(0. 0283)(200)60,000 or P = 409 kW. b) For annealed copper we have K = 315 MPa = 46,000 psi and n = 0. 54. The flow stress is Yf=(315 MPa)? 0. 54 where the absolute value of the strain is ?=lnhoh From volume constancy, we have ?4r2ho=? 4r2h or r=ro2hoh Note that = 0. 5 in and ho = 2 in. The forging force is given a s: F=Yf1+2? r3h(? r2) Some of the points on the curves are the following: % Red. | Forging Force, MN| | ? = 0| ? = 0. 25| ? = 0. 5| 10| 0. 053| 0. 055| 0. 058|
Case Study of Week Essay
Analysis of the template is most suitable for Kinkead. The reason is based on the case, electricity meters (EM), power tools (EI) products for customers to perform the same basic function. So their alternatives, so it needs to calculate a sales combined variances template, template B did not provide this data. Part B Answer: According to the relationship between the BCG matrix, analysis of market share and market growth. First, for the EM 499 286 According to Table, the variance of the size of the market is unfavorable, the size of the market because their budget is 800000, but the actual market size of 650000, it does not implement the expectations. The EM market share difference to 0, with 10% of the actual and budgeted position, it will not change. Therefore, they are a cash cow. Therefore, EM is the Cash Cow. Additionally, the Kinkead has been a leading Australia firm, and EM is the older but still dominant technology. Followed by EI table EI of the variance of the size of the market for 374,464 budgets, the size of the market for 250,000, lower than the actual market size of 363,500, more than expected. The market share variance is 241,321 Unfavorable which has decrease from 10% to 8%. Therefore, EI question mark. In addition, EI technology is new, or experiment. EIââ¬â¢s future is uncertain. Part C Answer: They seek cash cow product strategy, so there are two aspects of the important aspects of the performance, EM, reduce production costs and increase market share. More particularly, their market share of the difference does not change, which means it is a mature stage, and manufacturing has been standardized. So the company should take some new measures to reduce production costs. Secondly, the company should increase their market share, such as increased management fees. EI use of labeling strategies, there are three aspects of performance is very important to the EI. The first is the R ; D performance; they should increase R ; D costs continue to research new technologies for enterprises to create more profits in the future. Followed by market share, companies need to increase their market share of the product EI, because it is the mark phase of the problem, the future is uncertain. Thus, increasing its market share will change in the future star. Finally, production and sales is also very important, EI, because only effective production, to meet customer demand, increase the number of sales. Part D Answer: Assessment of the electromagnetic properties of the first actual sale price of $ 29, less than the standard price of $ 30, but only sold 65,000 units lower than planned sales of 80,000 units. There are two reasons led to this situation, first of all is their total market demand has been shrinking. Second, the actual sales commission EM is only $ 1, but the EI commission is $ 14. 9, which could lead salespeople do not want to sell the product. To evaluate the EI performance, the first problem is underpriced. Although the actual selling price is $153 which is higher than $150, the sale volume is 29,000 units which is large than budget 25,000 units. Secondly, although the size of the market from EI budget increase 250,000 units 362,500 units, the EI market share is not meet expectations, it has dropped from 10% to 8%. This means that the performance of the EI Company is not satisfied. Third, the staff may lack experience, because the actual manufacturing cost is $ 42. 1, higher than the standard $ 40. Finally, from a fixed cost analysis can be found, $ 121,000 of costs and unfavorable actual production costs are higher than the planned $ 11,000, from $ 1,388,000 to $ 1,399,000. Therefore, enterprises should improve production efficiency. On the other hand, the overall performance of EM and EI, and a profit of $ 51,000, cost of sales decreased $ 5,000 plans to invest $ 250,000 of the actual value of $ 245,000. The sales mix variance data can be found, there are more people choose EI, because the EI sales mix variance is $ 1,789,714! EM sales mix variance is $ 1,253, 571 should not be. The reason may be that the sales staff did not want to sell products EM, actual sales commission EI is 14. 9 dollars, but the commission is only $ 1. Second, EI is a new product and new technology, which will attract more customers to buy and more popular than the old.
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