Tuesday, December 24, 2019

Analysis Of Caribbean Literature And Ideas - 1478 Words

Throughout Introduction to Caribbean Literature and Ideas, the class explored a number of texts, both fictional and non-fictional, that spoke to a number of larger historical issues that have affected the Caribbean as a whole. In every text we read, I saw a recurring concept come about: traveling. The act of travel, or the circulation of people in and out of the Caribbean, seems to be very important, in order to understand many of the issues that Caribbean people face. Whether it is â€Å"the boys† of The Lonely Londoners having to migrate to London to find work, tourist from the U.S. coming to Jamaica for vacation, or Martine escaping a traumatic experience that coerced her to migrate, the commonality among all of these narratives is the act†¦show more content†¦During the late nineteenth century, United States began to transform Central America in order to fit its needs. Frenkel argues that the United States was able to do this by creating two opposing narratives: p ositive narratives of â€Å"exotic beauty† and negative narratives of danger and disease (page 1). Essentially, the United States was able to justify travelling into Central America by showing the region as a diamond in the rough, or a dangerous, uncivilized place that had potential to serve the United States’ needs. Once I learned of this particular narrative, it colored how I viewed the United States and its constituents’ interactions with the Caribbean. Also, I was able to trace my own western world view of other lands as untapped sources of personal enjoyment or gain to a historically prevalent form of thought that situated non-North American places in the context of â€Å"what they could do for me.† This form of thought disregards, or at least minimizes, the opinions and realities of the native populations of these places, in this case the people of the Caribbean. After I was able to think critically about the aforementioned western world view I held, I was then capable of applying that critique to how other people of the United States responded to the Caribbean, particularly the tourist that traveled there for vacation. This became important when watching Black’s

Monday, December 16, 2019

Thermodynamics and Heat Transfer Free Essays

National Diploma in Mechanical Engineering Section A: COMPULSORY Answer ALL questions 1-12 1. A resistance temperature device has a resistance R0 = 100 ? at 0o C. If the resistance RT = 197. We will write a custom essay sample on Thermodynamics and Heat Transfer or any similar topic only for you Order Now 7 ? in an oil bath, what is the temperature of the oil in the bath, given that RT = R0(1+? T)? Take R0 = 100 ? R0 = resistance at 0o C ? = 3. 9083 x 10-3 /o C (2 marks) NDE Thermodynamics and Heat Transfer Exam 2008 Name: _______________________________________ Read all the instructions before starting Do not open this paper until instructed Time allowed: 2 hours (plus 5 minutes reading time) Attempt ALL question in Section A (questions 1 – 12) Attempt any TWO from Section B (questions 13-15) Answer the questions in the spaces provided on the question paper. Use the back of the previous page if required. If you attempted all three questions in section B, then cross out the question you don’t want marked. The marker will mark the first 2 questions not crossed out. Show all relevant working. Marks will be awarded for method as well as correct answers Add your name to the top of this page 3. A steel shaft has a diameter of 25. 0 mm at 20 °C. A brass retaining collar has an internal diameter 24. 95 mm at the same temperature. If the shaft is cooled to 0 °C, find the temperature to which the retaining collar must be heated if is to have a clearance of 0. 10 mm when it is fitted to the shaft. Take ? Steel = 12 x 10-6 /oCand ? Brass = 19 x 10-6 /oC. (4 marks) 2. A steel casting (C = 460 J/kgK) of mass 2. 4 kg is cooled from 350 °C by placing in a container of 12 kg of water (C = 4200 J/kgK) at 18 °C. Assuming no heat is transferred to the container, calculate the final temperature. (4 marks) Instructions: Attachments: Marking: Formulae, saturated water tables Individual marks are shown on each question. There are a total of 70 marks representing 50% of your final mark in this subject. A minimum of 40% in this exam is a requirement for course completion Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 2 National Diploma in Mechanical Engineering National Diploma in Mechanical Engineering 4. Heat was added to 10 kg of saturated liquid water at a pressure of 2 bar at the rate of 20 kW for 10 minutes. Given the following information from the saturated water table, and assuming perfect insulation: hf = 505 kJ/kg, hfg = 2202 kJ/kg, hg = 2707 kJ/kg, Ts = 120. 2 °C a. Find the dryness fraction of the steam after the initial 10 minutes. (4 marks) 5. For the complete combustion of acetylene, C2H2: a. Write down the balanced combustion equation (2 marks) b. Determine the stoichiometric air to fuel mass ratio (5 marks) Atomic weights: H = 1, C = 12, O = 16, N = 14 Air composition: 23% oxygen, 77% nitrogen (by mass) . Calculate the time (in minutes and seconds) for which the steam must be heated at the same rate in order to become fully dry. (3 marks) 6. Prepare a labelled sketch of a manometer inclined at 5o to a horizontal datum. If the manometer contains oil with a density of 800 kg / m3, and a change in the pressure applied to it is 50 Pa, find the oil deflection in mm. (4 ma rks) O f il de lect ion 5o Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 3 Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 4 National Diploma in Mechanical Engineering National Diploma in Mechanical Engineering 7. Explain for the Seebeck effect and how it may be applied to temperature measurement. (3 marks) 10. Find the total heat transfer, per m2, through the wall shown below. Neglect radiation. Air temperature –5 °C h = 10 W/m2K Brick 70 mm thick k = 2. 3 W/mK Air Gap R = 1. 5 m2K/W (5 marks) Surface temperature 25 °C Gib 9 mm k = 0. 1 W/mK 8. The non-flow energy equation is given as Q – W= ? U. State the equation as it applies to: a. Isothermal b. Polytropic, and c. Adiabatic processes . (3 marks) 9. 50 litres of oxygen at 200C has a pressure of 850 kPa (abs). Find the pressure if its volume is reduced to 100 litres at: a. constant temperature Batts R = 2. 2 b. 850C 11. A chilly bin is 400 mm long, 200 mm high, 200 mm deep and is made from material 2 cm thick with a coefficient of thermal conductivity of 0. 028. The chilly bin contains ice – how much ice will melt in eigh t hours if the ambient air temperature is 300C? Take enthalpy of fusion for water as 335 kJ/kg. (5 marks) (5 marks) Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 5 Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 6 National Diploma in Mechanical Engineering National Diploma in Mechanical Engineering 12. Air is compressed from 99 kPaABS, 20 °C and 1. 5 litres to a volume of 0. 2 litres (5 marks) according to the law PV1. 25 = C. Find the following; a. Determine the mass of the gas Section B Answer any TWO questions from questions 13-15 13. A steam pipe is 75 mm external diameter and is 80 m long. It conveys steam at a rate of 1000 kg/h at a pressure of 2 Mpa. The steam enters the pipe with a dryness fraction of 0. 8 and is to leave the pipe with a dryness of not less than 0. 96. The pipe must be insulated – the material to be used has a thermal coefficient of conductivity of 0. 08 W/mK. If the temperature drop across the pipe is negligible, find the minimum thickness of insulation required to meet the conditions. The temperature at the outer surface of the insulation is 27 0C. (10 marks ) b. Determine the final pressure c. Determine the final temperature End of Compulsory section. Answer only TWO of the remaining questions. Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 7 Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 8 National Diploma in Mechanical Engineering National Diploma in Mechanical Engineering Answer question 13 here 14. A one-shell-pass, eight-tube-passes heat exchanger is used to heat glycerine from 25oC to 60oC at mass flow rate of 3000 kg /h. The heating liquid is water which enters the thin-walled, 12 mm diameter tubes at 90oC with a mass flow rate of 26 kg / min. On the shell side the convective heat transfer coefficient is 2000 W / m2 K and on the water side the corresponding value is 2400 W / m2K. After some time in operation a fouling factor of 0. 0004 m2 K / W develops on the outer tube surfaces. Take cGLYCERINE = 2. 43 kJ / kg K and cWATER = 4. 2 kJ / kg K. Calculate: Glycerine in Water Glycerine out a. The rate of heat transfer in the device before fouling occurs. (1 mark) b. Outlet temperature of water. (2 marks) c. Log mean temperature difference (LMTD). (2 marks) d. Coefficient of heat transfer after fouling has developed. (2 marks) e. Total length of tube required, using â€Å"dirty† coefficient of heat transfer (3 marks) Thermo exam November 2008 final. doc Version 23-Sep-08 Mechanical Consortium Printed 11/04/08 Page 9 Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 10 National Diploma in Mechanical Engineering National Diploma in Mechanical Engineering Answer question 14 here Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 11 Thermo exam November 2008 final . doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 12 National Diploma in Mechanical Engineering National Diploma in Mechanical Engineering Answer question 15 here 15. Argon gas flows steadily through a turbine. The flow is entirely adiabatic. Entry conditions are 900 kPaABS at 450o C with a velocity of 80 m/s through an inlet measuring 75 mm x 80 mm. Argon leaves the turbine at 150 kPaABS at a velocity of 150 m/s. Work output from the turbine is 250 kW. Given the following ideal gas properties for argon R = 208. 1 J /kg K and cp = 520. 3 J /kg K, find: a. Mass flow of argon Inlet 75 mm x 80 mm p = 900 kPaABS T = 450oC V = 80 m/s 250 kW p = 150 kPaABS V = 150 m/s (3 marks) b. Outlet temperature of the gas. Assume change of height negligible. 7 marks) Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 13 Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 14 National Diploma in Mechanical Engineering National Diploma in Mechanical Engineering Extra page for working if required Saturated water properties Thermo exam November 2008 final. doc Version 23-Sep -08 ?Mechanical Consortium Printed 11/04/08 Page 15 Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 16 National Diploma in Mechanical Engineering National Diploma in Mechanical Engineering Thermodynamics and Heat Transfer Formulary PV = mRT Q kA’t x P1V 1 = P2 V 2 T1 T2 Saturated water properties P V1n 1 P 2 V2 n n 1 Q hA’t A’t R T1 T2  §P · ? 1? ?P ?  © 2? n 1 n  § V2  · ? ? ? V ?  © 1? Q R CP CV Q UA’t 1 1 J W cp cv PV1 P2V2 1 n 1  ¦ 1  ¦ W  §V  · ? ? PV ln ? 2 ?  © V1 ? Q ‘ l = loD’T Q = m ‘h Q = m c ‘T ‘U P= Q 2? l’t ?  § ro  · ?  « ln ? ?  » ? r ?  ¦  «  ©k i ?  »  «  »  «  »  «  »  ¬ ? 2S rlk ‘t x mcv ‘T F A for all processes Q Q H V AT 4 hA’T 5. 67 x10 8 P Ugh ‘U W OUTPUT 100 INPUT Q V W m2 K 4 K= Q UA’t Mean t Mean ? 1 ? 2  §?  · ln ? 1 ? ?  © 2? 2  § V2 V12 m? h2 h1 ? 2  © T1 m h2 h1 S. T. P. = 0 °C and 101. 3 kPa N. T. P. = 15 °C and 101. 3 kPa Cwater = 4200 J/kgK For Air Cp = 1005 J/kgK Cv = 718 J/kgK R = 287 J/ kgK ? =1. 4 Q W mc p T2 g z2  · z1 ? ? ? Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 17 Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 18 National Diploma in Mechanical Engineering Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 19 How to cite Thermodynamics and Heat Transfer, Papers

Saturday, December 7, 2019

Expansion Strategy of Walmart Retail Stores †MyAssignmenthelp.com

Question: Discuss about the Expansion Strategy of Walmart Retail Stores. Answer: Introduction to Walmart Walmart is a very renowned American retail stores who provide a lot of products to their customers like the family apparels for all ages, beauty aids, household needs, electronic items, fabrics, toys and many more things (Walmart.com 2017). The headquarter of this organization is situated at Arkansas in USA. The founder of the organization is Sam Walton. This company is considered to be the largest company in the world regarding the revenue. They have their outlets all over the world and they are trying to open a new business in Saudi Arabia to expand their market in the Middle East Asia (Walmart.com 2017). Product and type of services As a global service provider, Walmart provides many kinds of services to their customers. They are the largest retail chain in the world and they are looking to retail products, photo services, pharmacy products, financial services and wireless service. They provide various electronic products to their customers like MP3 players, digital cameras, laptops and computers. They offer photo lab services as well (Walmart.com 2017). Apart from these things, Walmart offers several other things like the credit cards, debit cards, bill payment, money transfers, check cashing and printing and many such services. They also provide the T-mobile to their customers for a better customer service through wireless phone (Walmart.com 2017). Business statement The business statement of the organization Walmart says that they want to serve their customers better and they want that the people would be able to save their money by buying their products (Powell 2014). The advertisement slogan of Walmart also looks to save the money of the people. There are many processes and policies that they want to focus on to serve the customers in a better way. These are open door policies, Sundown rule, Grass Roots process and some more (Walmart.com 2017). Business vision The company Walmarts first priority is to serve its customers in a better way always. Their vision statement is To be the best retailer in the hearts and minds of consumers and employees (Walmart.com 2017). They desire to achieve the top position in the retail industry. They have had a great influence on the minds of the consumers and employees. The employees can earn the wages and this is why they will be looking to incorporate more varieties of products in their product archive (Anitha 2014). They want to provide products at low process to save the money of the customers. Business objective Walmart has certain objectives by which they will be able to utilize their mission. They want to build up some of the growth strategies by which they could expand in many countries outside their own country (Walmart.com 2017). They want to develop and execute certain strategies by which they could grow the e-commerce strategy. They want to speed up the global online channel growth by which they could develop new opportunities (Weng and McElroy 2012). They want to use new formats by which they could cater to the service to more customers. New platforms like Walmart Express will help them to communicate with more customers (Walmart.com 2017). The four managerial skills or functions that have to be performed in order to be applied to the Walmart Stores if it is opened at Saudi Arabia. a) The managers will have to understand the geographical condition and the economic situation of Saudi Arabia so that they will be able to apply the pricing strategies in that country. Walmart is an international organization so they will need to manage their definite weaknesses into their strengths (Kozina 2014). b) The human resource in Saudi Arabia is fair enough to provide the human strength that is needed to set up the infrastructure for the organization. There are a lot of people needed to be employed and take care of the whole business structure. The financial resources have to be managed by utilizing on the oil business of the Middle East Asia. The managers will have to take the full responsibility of the things that happen and manage the challenges that arise there (Kozina 2014). c) All the challenges that are evident in the managing of the business of Walmart will have to be addressed in this aspect by the managers. The planning has to be done properly to achieve the best achievements by Walmart in the Saudi Arabian region. As the region is very warm, they have to manage and innovate some things that should be provided suitable to the local atmosphere (Tutt and Duncan 2013). d) Walmart managers should ensure that the managers can control all the important things in the business. The objectives and mission of the organization will have to be accomplished by running the organization towards a grand success (Kaufman and Guerra-Lopez 2013). They can apply the various market expansion strategies and grow their business in the various regions (Tutt and Duncan 2013). The various stakeholders will have to be attached to this organization for a better result in their quest to expand in the markets of Saudi Arabia. Walmart can opt to open new markets like supermarkets and hypermarkets which the country has been lacking. The customers are the chief external stakeholders of Walmart and they should look to meet the demands of the customers. It is a concern for the Saudi Arabian people that their grocery stores are limited to baqalas. It is time for the people to look beyond the baqalas and get used to the supermarkets and the hypermarkets. One of the most important stakeholders in this context is the Saudi Arabian government (Buchholtz and Carroll 2012). The permission from the government to set up the government has to be sought to establish the supermarkets. Walmart managers will have to make the proper contacts with the local supplier of their products and trust in their worth (Buchholtz and Carroll 2012). The wholesale retail has to be supported by the government. The higher management should recruit the best talents from the Saudi Arabian human resource to get the best benefits as it will be very expensive to bring the American employees to this region and serve the purpose in this hot region, contrastive to that of cold in USA. This is how the stakeholders can be managed in Saudi Arabia if Walmart opts for expanding market to Saudi Arabia. References Anitha, J., 2014. Determinants of employee engagement and their impact on employee performance.International journal of productivity and performance management. Buchholtz, A.K. and Carroll, A.B., 2012.Business society: Ethics stakeholder management. South-Western Cengage Learning. Kaufman, R. and Guerra-Lopez, I., 2013.Needs assessment for organizational success. American Society for Training and Development. Kozina, A.W., 2014. Managerial roles and functions in negotiation process.Business, Management and Education,12(1), p.94. Powell, K.S., 2014. Profitability and speed of foreign market entry.Management International Review,54(1), pp.31-45. Tutt, K. and Duncan, C., 2013. Creativity and innovation.Independence,38(1), p.10. Walmart.com. (2017).Cite a Website - Cite This For Me. [online] Available at: https://www.walmart.com/ [Accessed 28 Oct. 2017]. Weng, Q. and McElroy, J.C., 2012. Organizational career growth, affective occupational commitment and turnover intentions.Journal of Vocational Behavior,80(2), pp.256-265.