Reflective Paper Essay Example | Topics and Well Written Essays - 1000 words - 2

Reflective Paper - Essay Example Workers were given directives by their bosses and, therefore, creativity was limited. Workers climbed up the seniority ladder with time. If there were layoffs, the seniors were affected less than the juniors since lay- offs were based on the principle of ‘last in, first out. There was no close tie between the pay that one got and their performance, and there were no significant differences among the workers (Michael, 23). In the 1820s, twenty percent of the population worked for wages and salaries but by the year 2000, 90 % worked for organizations, half of them working for big companies. ‘In the 1950s, the relationship between the employees and the companies involved commitment and reciprocity; workers were dedicated to the job in return for wages and promotion, and the company was committed to its workers in return for their hard work and loyalty’ (Michaels,21). Firms invested in their employees by training them, developing their skills and promoting them. This encouraged loyalty by enabling the employees plan on owning their homes and sending their children to schools. For this reason, people stuck with the same company for years. In the case of occasional long working hours, the impact was relatively easy to absorb, since women, not in the workforce assisted them with domestic duties. However, this story changed. There was a stable relationship between companies and the employees. B y regularly promoting their employees, the companies were able to maintain the stability of this relationship (Michaels 27). With time, the state of business changed and the priorities of the companies, as well as the employees, changed. In a global economy, corporations are always competing. Investors are always on the run to get new opportunities that have higher rates of return, to invest their funds. This makes investors keep moving their funds in and out of countries, companies (Michael’s Countries and businesses, therefore, are

The 5 Technologies That Changed My Life Essay Example for Free

The 5 Technologies That Changed My Life Essay I thought it would be interesting to kick off a series where each of our columnists would share the top 5 technologies that changed and profoundly impacted our lives, along with the reasons why. Technology has shaped and is shaping many different generations in different ways and will continue to do so for long periods of time. I know I always enjoy listening to others tell stories about the products that truly impacted them for the better and some of the reasons why. So here are the ones that shaped my life up to this point. That’s right the very first EPIC NES. It was 1985 when the NES came into my house. I was instantly the coolest kid on the entire block. My father being one of the first analysts in the computer industry developed a good relationship with Nintendo so he got to bring one of the first units home. Many of you can relate to your first gaming experience, whether it be with the Commodore, Atari, NES or even the Playstation or XBOX. It was mesmerizing, captivating and seriously addicting. I couldn’t get enough, the escape that video games presents or more immersive and emotional that books or movies could ever be, for me at least. It also most likely contributed to my ADD. Now with the addition of things like Kinect and the Wii, families are getting together and playing immersive games together. For me it all started with the original NES. IBM PS/2 DIR/W. Ah the memories of DOS. The PS/2 was the first computer I remember using at length. We had many others before it in our home but I simply don’t remember them as well. I learned to use DOS on the PS/2 which instantly made me the go to for tech support in computer lab in the 5th grade. Computers and computing are a big part of many of our lives. I highlight this one because it was the one I spent the most time with at a young age and the one much of my computing foundation was grounded on. I had a difficult time choosing between the iPaq and the first Palm Pilot. I was at the Palm Pilot launch event when Jeff Hawkins first publicly demonstrated the device. In fact my dad took me out of school to attend the event because he knew how significant it would be for the industry. I remember thinking at the time how groundbreaking this pocket computer was. The primary reason I chose the iPaq over the Palm Pilot was because of the Metricom wireless card adapter sleeve. Although the original Palm Pilot represented a vision for a true pocket computer, the iPaq with the Metricom Ricochet Wireless card brought me the Internet in my pocket for the fist time and that was what gave me my inflection point. Now you may be wondering why I chose this device over a smartphone or cellphone of some kind. The reason was because this particularly product, tied to the Metricom broadband service, provided the basis for my smartphone experience. Because I was highly familiar and comfortable with a pocket computer experience, I didn’t have the same profound â€Å"aha† moments many did with their first smartphones because the iPaq had provided the fundamental experience of apps and the internet in your pocket. Being an early adopter I bought my first HDTV the second I could possibly afford one which was in 2003. That was also the year my first daughter was born, so I positioned it as a birthday present for her, which obviously no one believed. I remember the first time I saw an HD picture on this beast. I nearly cried. I stared at it for hours and watched the most random things simply because HD content was limited and I just wanted to watch HD shows. I remember telling my wife it was like looking out a window or like actually being at the football or baseball game. She didn’t think so but I did and that was all that mattered. I chose the iPad for a number of reasons. Mainly because in the 13+ years I have been working in the technology industry I always dreamed of a product like this (a no compromise tablet) and this was the first to deliver. I used nearly every pen computing tablet that came to market in a variety of shapes and sizes prior to the iPad. Yes, there are a number of good tablets on the market and they will all continue to get better but for me the iPad brought touch computing to the mass market and is still the cream of the crop in my opinion. Arguably touch computing started with the iPhone but a small pocketable screen is only capable of some elements of touch computing where the iPad represents a much more holistic touch computing platform and has cast a vision of where touch computing will go with future innovations. So those are my 5 defining experiences with technology. More Tech.pinions columnists will share theirs and why and as always we would love to hear from our fantastic community with your comments.

Essay Comparing Macbeth and Lady Macbeth -- comparison compare contras

William Shakespeare’s Macbeth tells the story of a general who commits regicide in order to become king. Early in the play, Macbeth is conflicted as to weather or not he wants to kill his kinsman the king. In the first two acts Macbeth is not portrayed as a ruthless killer; he is a sympathetic character who succumbs to the provocation of his wife and a prophecy foretold by three mysterious witches. In contrast, Lady Macbeth is a manipulative, immoral woman. Her ambition is so strong that she is willing to do anything to see her husband succeed. However, in the third act things begin to change. The death of the king and lord and lady Macbeth’s rise to power catalyze profound transformation in their personalities.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Before Macbeth enters the stage his reputation as a prestigious general is established. In the second scene of the play men who have fought with Macbeth rant about his courage in battle. The first account of Macbeth’s bravery comes from an injured captain. He says: â€Å" But all’s too weak/for brave Macbeth (Well he deserves that name)/ Disdaining fortune, with his brandish steel/. (1.2.17) The rest of the scene consists of other recounts of Macbeth’s success; the thane of Ross informs the king that Macbeth has successfully suppressed the joint efforts of the thane of Cawdor, and the king of Norway. Furthermore, in this scene the king announces that Macbeth is to be promoted as the new thane of Cawdor. In this scene Macbeth is portrayed as a mighty, patriotic, warrior and a loyal subject to the king. However as the play progresses Macbeth deviates from these traits. Macbeth’s encounter with the three witches c onfuses him. He begins to decide on a course ... ... to kill Banquo he says â€Å" Not I’ th’ worst rank of manhood say ‘t And I will put that business in your bosoms†(3.1.115) This was the same technique that Lady Macbeth used when she was persuading Macbeth to kill Duncan; she questioned his manhood. While Macbeth is loosing his morals, Lady Macbeth is developing hers. After Macbeth reveals his plot to kill Banquo she is reluctant to add another murder to those already committed: â€Å"You must leave this†(3.3.40)   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   In act three another prophecy foretold by the witches comes true. The paradox â€Å"fair is foul and foul is fair† characterizes the changes the protagonists undergo in acts one, two and three. Throughout the play Macbeth, the â€Å"fair† one, becomes overcome by guilt and becomes â€Å"foul†. While Lady Macbeth who was â€Å"foul† in her instigations becomes â€Å"fair†. Essay Comparing Macbeth and Lady Macbeth -- comparison compare contras William Shakespeare’s Macbeth tells the story of a general who commits regicide in order to become king. Early in the play, Macbeth is conflicted as to weather or not he wants to kill his kinsman the king. In the first two acts Macbeth is not portrayed as a ruthless killer; he is a sympathetic character who succumbs to the provocation of his wife and a prophecy foretold by three mysterious witches. In contrast, Lady Macbeth is a manipulative, immoral woman. Her ambition is so strong that she is willing to do anything to see her husband succeed. However, in the third act things begin to change. The death of the king and lord and lady Macbeth’s rise to power catalyze profound transformation in their personalities.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Before Macbeth enters the stage his reputation as a prestigious general is established. In the second scene of the play men who have fought with Macbeth rant about his courage in battle. The first account of Macbeth’s bravery comes from an injured captain. He says: â€Å" But all’s too weak/for brave Macbeth (Well he deserves that name)/ Disdaining fortune, with his brandish steel/. (1.2.17) The rest of the scene consists of other recounts of Macbeth’s success; the thane of Ross informs the king that Macbeth has successfully suppressed the joint efforts of the thane of Cawdor, and the king of Norway. Furthermore, in this scene the king announces that Macbeth is to be promoted as the new thane of Cawdor. In this scene Macbeth is portrayed as a mighty, patriotic, warrior and a loyal subject to the king. However as the play progresses Macbeth deviates from these traits. Macbeth’s encounter with the three witches c onfuses him. He begins to decide on a course ... ... to kill Banquo he says â€Å" Not I’ th’ worst rank of manhood say ‘t And I will put that business in your bosoms†(3.1.115) This was the same technique that Lady Macbeth used when she was persuading Macbeth to kill Duncan; she questioned his manhood. While Macbeth is loosing his morals, Lady Macbeth is developing hers. After Macbeth reveals his plot to kill Banquo she is reluctant to add another murder to those already committed: â€Å"You must leave this†(3.3.40)   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   In act three another prophecy foretold by the witches comes true. The paradox â€Å"fair is foul and foul is fair† characterizes the changes the protagonists undergo in acts one, two and three. Throughout the play Macbeth, the â€Å"fair† one, becomes overcome by guilt and becomes â€Å"foul†. While Lady Macbeth who was â€Å"foul† in her instigations becomes â€Å"fair†.

Successful Military Innovation Essay examples -- Military History

The fall of the Berlin wall in 1989 and subsequently the collapse of the Soviet empire changed the political – military situation within Europe. Nearly five decades of Cold War between the Western Alliance and the Warsaw Pact countries, with relatively large standing armies and prepared mobilization plans, ended. The fight between large mechanized formations on European countryside became more and more improbable, and forced many Western countries to identify a new role for their armed forces as new threats emerged. Yet, those military organizations often struggle with such doctrinal innovations, especially in economic austere conditions combined with rapidly technological improvements. While such strategic situations determine the environment in which the military operates, ultimately people lay the foundations for a new approach. Therefore, successful innovation within a military organization depends on aligning political and military strategy, creating a learning organizati on, and assuring popular support to the military. This essay identifies principles that induce change on organizational level based upon examples from the interwar period, and has not the intention to discuss neither tactical nor technical changes in detail. Such an essay would require more in depth study that draws us away from the initial argument. Without a doubt, during the interwar period almost all military organizations reformed, based on their lessons learned from World War I, and each of them booked significant advances in certain domains. Nonetheless, some organizations as a whole proved to possess more adaptive skills than others. Above all, innovations within military organizations depend on the integration of political and military vision. ... ... The Challenge of Change: Military Institutions and New Realities, 1918-1941†. Edited by Harold R. Winton and David R. Mets (Lincoln, NE: University of Nebraska Press, 2000), 37-41. Williamson, Murray. â€Å"Armored Warfare: The British, French, and German Experience†, in Military Innovation in the Interwar Period. Edited by Williamson Murray and Allan R. Millet (Cambridge, NY: Cambridge University Press, 1996), 22-24. Eugene, C. Kiesling in The Challenge of Change: Military Institutions and New Realities, 1918-1941†. Edited by Harold R. Winton and David R. Mets (Lincoln, NE: University of Nebraska Press, 2000), 3 and 10-11. Murray, op. cit., 14-15. Ibid, 9. Ibid, 13. House. Towards Combined Arms Warfare: A Survey of Tactics, Doctrine and Organization in the 20th Century. 66. Murray, op. cit., 17. Ibid, 24-25. Murray, op. cit., 125-127 and 139.

Bassett and Howley

It nas been proposed initially by ( ) that the individuals with more training experience have additional cardiac output, and such individuals are able to operate with even less oxygen saturation. It is also argued that, in elite athletes, decreased transportation time of the RBCs in the pulmonary vessels causes oxygen desaturation in the arteries due to increased cardiac output.Moreover, increase in flow rate occurs due to increase in volume of blood flow in the vessels or capillaries having constant diameter (Pelliccia et al. , 2002). If flow rate is so fast, then ed blood cells will surpass oxygen hurriedly to the haemoglobin, which will result in less saturation of haemoglobin resulting in reduced oxygen in exercising muscle, causing muscle fatigue (Warpeha, 2003). This theory indicates that maximum oxygen consumption is, to an extent, limited by pulmonary factors during exercise. While other authors indicate that factors such as arterial oxygenation are impossible to affect V02 m ax (Vogiatzis et al. , 2008). Moreover, Christensen (1931) argued that decline in sub maximal heart rate, without affecting cardiac output, can occur during aerobic exercise.He concluded that maintaining cardiac output is possible by increasing stroke volume when heart rate is decreased, as cardiac output is the result of heart rate into stroke volume. However, this relationship varies when exercise reaches maximum level. It was evaluated that training time and levels did not affect maximum heart rate, and only an augmented stroke volume caused improvement in performance when exercise reached its maximum levels. Hence, stroke volume was able to maintain appropriate cardiac output, as average heart rate remained the same for both trained and untrained individuals at maximal exercise Christensen, 1931; Saltin and Calbert, 2006).

The Paradox of Synergy and Responsiveness Essay Example

The Paradox of Synergy and Responsiveness Essay Example The Paradox of Synergy and Responsiveness Essay The Paradox of Synergy and Responsiveness Essay The corporate realm is today made very complex by the fact that businesses are increasingly consolidated and large. This is to say that practices of creating multilayered firms in both the serve and the product industries have created business models that must depend on both large and small goals. For a large firm which holds many different types of operations, making the right decisions for how to best manage these individual units while still promoting a larger and singular identity can be a big determinant of success. This discussion is guided by the concept found in the De Wit and Meyer text, stating that such large firms must deal with the so-called Paradox of Synergy and Responsiveness. According to this paradox, it is a constant challenge for large firms to find a balance between the interest of consolidating its brand identity into a single, monolithic corporate structure and the interest in responding with sensitivity to the needs presented by individual factors. As the discussion and the selected case study example will show, individual factors such as customer orientation, financial performance and industry conditions. In the paradox between these two sometimes opposite demands, companies must often make hard decisions about how to pursue their operations. In the context of something such as the service industry, we can see that the achievement of this balance will be directly related to how a business manages its portfolio of operations. For the ever-growing service industry, this causes an interesting investigation into the way that unit management can be central to an operation. The approach taken by a company in the hospitality sector of the service industry, for example, should serve as a useful illustration of how organizations approach a market shaped by the De Wit and Meyer paradox. Introduction: In our consideration of the Marriott Corporation, which is an extremely successful service sector company, we can see that the way a company moves its operational assets around will be important to its management effectiveness. According to the article entitled Marriott Corporation: The Cost of Capital, the hospitality industry has been through both very fast growth and very sharp retraction. This has been particularly true for Marriott, which seized on an era of increased tourism and hospitality investment in order to catapult to the top of the market. However, changing market realities and the increased nuance of the hospitality industry would force Marriott to consider altering its corporate structure so it could make a change to a context where it could more effectively approach hurdles distinct to individual divisions. This would be a demonstration of its responsiveness, even as synergy had been the primary guide in its initial growth. The example here, based on the discuss at hand, will remark upon the strategies regarding capital investment, stakeholder responsibility and debt management which would effectively be approached by the corporation in managing its portfolio of units. The primary avenue to be taken by Marriott in achieving the goal of managing its operational orientation would be the creation of a new department with a more refined focus on financial strategies and investment properties relating to the specific aspect of hotel management (as opposed to the real-estate operation) For the stock-holder, this would mean more directed and informed decisions as well as a relative insulation from revenue trends, making for a more stable market in times of real estate instability. Again, we can see that Marriott would be turning toward a strategy of responsiveness. Such is to say that Marriot determined to protect the value of its existing capital by establishing a circumstance in which growth and synergy could no longer be identified as the primary interest. Instead, ensuring the retention of capital at a rate justifying its debt condition, Marriott would being a new phase in its history in which hurdle rates for achieving growth would be purposefully higher. In this way, even growth would be directed from corporate HQ by responsive rather than synthetic origins. In our research, we find that the Marriot transition was not without its costs. These would make Marriott go through some real economic changes that are part of the paradox between synthesis and responsiveness. By being forced to change operational gears, Marriott would experience a decline in earnings during its period of transformation. Due to the debt challenges noted, Marriott’s bond ratings, declined to a B level according to both SP and Moody’s in the face of real estate declines, have resulted in a higher long-term expense on new bond issues for the company. One of the key ways that Marriott would deal with its debt maturities in order to afford the transition would be in its mortgage financing of its ‘trophy’ properties, which were those continually successful marquis lodging facilities there were no longer in any mortgage debt. The greatest concern to manu financial institutions in this case was the condition that Marriott’s heavy dependency on invested debt might create a scenario where it would be incapable of covering its obligations. Naturally, this is a fear which is facing so many corporations on this scale today. That shows just how relevant the paradox discussed is. That is why the Marriott example is very useful, because it would use portfolio management strategies to deal with this financial risk. Marriott would basically create a spin-off in its new management company. A spin-off is the divestment of a company in which, rather than selling off aspects of itself in poor market conditions, it distinguishes one aspect of itself to be set apart as an independent business. This independent business will take on its own structural and financial parameters while retaining branding, technology and, in some instances, access to assets, of the parent company. This would be the essential response by Marriott to the distinct obstacles created by the changing market, particularly in consideration of the corporate retraction likely due to markedly rapid corporate growth. The divestment of the company into management and real estate firms would essentially serve to unlock the company’s assets to the benefit of the stakeholder, with the stock owners particularly served by this approach. We can therefore ultimately begin to resolve that the approach taken by Marriott would be a natural outcome in consequence to its singularly high rate of growth from a synergy centered strategy and what might be characterized as its saturation of its own market. The impact would require a responsiveness in a market approach to diminishing the corporations inherency toward this rate of growth. Though we can suggest that the consequences are likely to be somewhat severe to the organization’s personnel and resource orientation in the short term, it will undoubtedly benefit the value and extent of capital usability for individual facilities, thus improving quality organization-wide. De Wit, B. Meyer, R. (1999). Strategy Synthesis. International Thomson Business. Ruback, R. S. (1998). Marriot Corp. : The Cost of Capital. Harvard Business Publishing.

And Still I Rise Essays

And Still I Rise Essays And Still I Rise Essay And Still I Rise Essay You may write me down in history With your bitter, twisted lies, You may trod me in the very dirt But still, like dust, Ill rise. Does my sassiness upset you? Why are you beset with gloom? Cause I walk like Ive got oil wells Pumping in my living room. Just like moons and like suns, With the certainty of tides, Just like hopes springing high, Still Ill rise. Did you want to see me broken? Bowed head and lowered eyes? Shoulders falling down like teardrops. Weakened by my soulful cries.Does my haughtiness offend you? Dont you take it awful hard Cause I laugh like Ive got gold mines Diggin in my own back yard. You may shoot me with your words, You may cut me with your eyes, You may kill me with your hatefulness, But still, like air, Ill rise. Does my sexiness upset you? Does it come as a surprise That I dance like Ive got diamonds At the meeting of my thighs? Out of the huts of historys shame I rise Up from a past thats rooted in pain I rise Im a black ocean, leaping and wide,Welling and swelling I bear in the tide. Leaving behind nights of terror and fear I rise Into a daybreak thats wondrously clear I rise Bringing the gifts that my ancestors gave, I am the dream and the hope of the slave. I rise I rise I rise. Maya Angelou’s And Still I Rise is a very inspirational poem. The way I interpret the poem is her battle with racism, sexism, lies and low standards of living yet she is able to rise above it all. She is able to rise above and just be herself.She embraces who she is and not ashamed of herself, she is proud of herself. The poem, And Still I Rise enforces her idea of rising above and being a bigger person. The end stopping in the poem keeps her points concise, clear and keeps the reader’s attention. The language is also very simple and is accessible to anyone who reads it. Overall this poem is very affective of getting her point across of rising above all the hatred in life and just to live life as you are and be proud of who you are.

Studies Show Black Women Are Healthier at a Higher Weight Than White Women

Studies Show Black Women Are Healthier at a Higher Weight Than White Women Studies reveal that African American women can weigh significantly more than white women and still be healthy. By examining two standards of measurement - BMI (body mass index) and WC (waist circumference) - researchers found that while white women with a BMI of 30 or more and a WC of 36 inches or more were at greater risk for diabetes, high blood pressure and high cholesterol, black women with those same numbers were considered medically healthy. African American womens risk factors did not increase until they reached a BMI of 33 or more and a WC of 38 inches or more. Typically, health experts consider adults with a BMI of 25-29.9 to be overweight and those with a BMI of 30 or greater to be obese. Peter Katzmarzyks Studies The study, published in the January 6, 2011 research journal Obesity and authored by Peter Katzmarzyk and others at the Pennington Biomedical Research Center in Baton Rouge, Louisiana, only examined white and African American women. No similar racial difference between black men and white men were studied. Katmzarzyk theorizes that the weight gap between white and black women may have to do with how body fat is distributed differently throughout the body. What many call belly fat is primarily recognized as being a significantly greater health risk than fat in the hips and thighs. Dr. Samuel Dagogo-Jacks Findings Katzmarzyks findings echo a 2009 study by Dr. Samuel Dagogo-Jack  of the University of Tennessee Health Science Center in Memphis. Funded by the National Institutes of Health and the American Diabetes Association, Dagogo-Jacks research revealed that whites had more body fat than blacks, which led him to theorize that muscle mass may be higher in African-Americans. Existing BMI and WC guidelines are derived from studies of predominantly white and European populations and do not take into account physiological differences due to ethnicity and race. Because of this, Dagogo-Jack believes that his findings argue for a review of the existing cutoffs for healthy BMI and waist circumference among African-Americans. Sources: Kohl, Simi. Use of BMI and waist circumference as surrogates of body fat differs by ethnicity. Obesity Vol. 15 No. 11 at Academia.edu. November 2007Norton, Amy. Healthy waist may be a bit bigger for black women. Reuters Health at Reuters.com. 25 January 2011. Richardson, Carolyn and Mary Hartley, RD. Study Shows Black Women Can Be Healthy At Higher Weights. caloriecount.about.com. 31 March 2011.Scott, Jennifer R. Abdominal Obesity. weightloss.about.com. 11 August 2008.The Endocrine Society. Widely Used Body Fat Measurements Overestimate Fatness In African-Americans, Study Finds. ScienceDaily.com. 22 June 2009.

Managing Diversity Strategies Article Example | Topics and Well Written Essays - 250 words

Managing Diversity Strategies - Article Example In summary, the article portrays diversity management as a business strategy that requires training to employees in order to increase their ability to align their practices to the diversity requirement in both the external and internal business environments. Key points in the article are on the importance of authenticity in diverse management which requires the shunning of the tradition perception of the practice. Glenn also sensitizes on the importance of diversity management in growth, and how change evaluation is important is creating reliable diversity management strategies (2). The article is important in the chapter of study in that it addresses the queries on the significance of the approach in the workplace, how to effectively implement the process and how to develop appropriate diversity training techniques. The choice of the article is based on its ability to evaluate the future of diversity management as influenced by mandatory change in the corporate world. I agree with the arguments by Glenn since the article highlights accurate trends in the practice based on trends in diversity management. The article also provides reliable information since it uses case studies of companies that have successfully implemented diversity management strategies. Glenn, Llopis. Diversity Management is the Key to Growth: Make it Authentic. Forbes. June 13, 2011. Web. April 21, 2015.

Write a mini report to demonstrate the meaning of the operational Essay

Write a mini report to demonstrate the meaning of the operational characteristic Visibility , use examples to illustrate your points. (Max 300 words) - Essay Example This store started to work in 1950s, Sweden and now it is the most thriving furniture retailer’s. It has total 276 stores in 36 countries.Its owner has built the store in a very special & innovative way. Therefore its per-unit cost is high as compared to others in the market.Characteristics of operational management includes four V’s.; volume, variety, variation & visibility. Here we’ll discuss the Visibility characteristic, which involves High & Low visibility. Low visibility operations –in this operation to much timing process is involved between the production and the consumption. That is why the output from the transformation is highly standardized. Employees don’t have the required skills and they move towards theminimum number of tasks during the transformation process. Therefore, low visibility leads the business to low cost unit High visibility operations –on the other hand in high visibility time is effectively consumed. Quality of service is based on the service perception. Employees hold much skill to work & there is a high contact among them. The degree of the variety of product is highly considered, keeping the demands of the customers in mind. Services aren’t standardized that’s why employees take their customers seriously. Therefore, per-unit cost is very high. (Business management a Functional focus,

Teaching and learning challenges and strategies Essay

Teaching and learning challenges and strategies - Essay Example Diversity is both a challenge and opportunity for a teacher. In a heterogeneous classroom, it is typical to encounter different personalities among children, and alongside with these differences is the challenge for the teacher to encourage them to learn. This difficult task is at times neglected by the teachers, thinking that their primary obligation is to teach, only. However, the real scenario contradicts this notion. Since real teaching cannot be employed without student participation, it is the teacher’s task to set her students in the class, in a way that they are motivated to listen and ready to learn. On the other hand, external and internal factors can hinder this process. Using published case studies, reports, books, and educational research, this paper will discuss the challenges of teachers in deploying effective teaching-learning activities and possible teaching strategies which may relieve the problem. Issues relating to the physical/neurological and social probl ems may cripple a child’s ability to learn; and while there is no common teaching strategy applicable to all learners, it is still the teacher’s task to inculcate learning amidst factors that can serve as an obstacle in fulfilling it, through innovation of the known strategies and its application to different learning situation. Part I: Challenges of Teachers in Employing Effective Learning Physiological and Neurological Factors to Hinder Successful Learning Process The cross-disciplinary approach to the learning environment envisions the utilization of real world situations to solve complex problems is called authentic learning (Lombardi, 2007, p. 2). The role of the teacher in the 21st century plan for authentic learning is generally as a â€Å"facilitator† wherein the traditional discussion type’s purpose is only to give a brief knowledge to the children about an information. The rest of the stages are subject to the exploratory activities of the learn ers (please see figure 3 of appendix C). However, finding relevance to activities in connection with reality may not seem to be an easy task for all types of learners. The proliferation of special education substantiated the tremendous change with regard to the treatment of the so-called â€Å"invisible minority,† otherwise known as the disabled population. The term evolved in the turn of modern thoughts which are undiscriminating to various physical and mental conditions as reference of social productiveness. Nowadays, the disabled are acceptably known as â€Å"special people.† In the matters of education, it has been a continuing challenge for teachers of children with special needs to assist learning, though they have taken the necessary, proper education and training needed. The challenge resides within the maxim of education which mentions about the uniqueness of each learner, much so with the uniqueness of learners belonging to the special group. It is therefore imperative that before contemplating on the professional and moral obligations of the teacher, one must be able to answer the several â€Å"why’s† concerning the situation of these children. In the United Kingdom, there are an estimated 1.5 million people who have learning disabilities (Mencap, n.d.), and they are categorized according to the specific condition they posses. However, a common trait existing regardless of categories is their difficulty of information processing. This difficulty is the reason why they are generally separated from the mainstream learning groups. Common conditions which are directly associated with special education is autism and ADHD, and although it is not considered as a â€Å"learning disability,† dyslexia suffers children and becomes a major problem for teachers, all at the same time. In the case of Autism Because of the lack of information regarding this condition, it is more convenient to define it with the corresponding chara cteristics seen from individuals having this disorder. Rudy (2009) defined autism as one of

Heraldic shield Research Paper Example | Topics and Well Written Essays - 1500 words

Heraldic shield - Research Paper Example The very shield in question has several constituents. The eagle can be used as a symbol of representing power authority and the sun. The eagle is the king of the birds; this shows authority it has over other creatures. Rarely do eagles lose in combat; this shows they have strength and power to rule. Therefore, they symbolize strong and powerful leadership. Indian herbalists and wizards use the feathers of eagles in their treatment of the sick. This shows that the eagle has a medicinal value and this can be used to symbolize the gift to give life to the hopeless. Eagles have been known to have a clear vision and soaring spirit. These are best qualities a leader can have; a clear vision means that the leader can make wise and just decisions. A soaring spirit means the leader is always aiming for more. This symbolizes the initiative and ambitions that an exemplary leader should have in order to lead his or people to greater prosperity (Bentley et al, 54). This is the main reason why eag les are connected with wealth and prosperity. The most outstanding character that distinguishes the eagle from other living creatures is the ability to take responsibility. The eagle is monogamous in nature; interestingly, the male and female eagles both share the responsibility of taking care of their young ones. This is not only symbolic but also enlightening. This shows responsibility as the leader should be responsible enough in order to lead people. This as well helps to advice people who tend to run away from responsibilities like taking care of their young ones. The eagles can be used to represent freedom. This observation is ttained by the size of their territories; an eagle can have a home ranging in thousands of acres this shows that the eagles are not afraid of conquering new territories in the bid of enjoying their freedom (Bohl & Rynn 85). In most mythical beliefs, it is said that the spirits of the eagles are free and independent creatures that roam alone. Through this aid in educating people on the significance of being free, we are able to make choices alone without relying on others every time because, in life, some decisions are made alone as they are personal. This symbolizes the rights and freedom of an individual to choose their own paths in life that seem suitable to them. The picture of the eagle in heraldic shield demonstrates exceptional leadership, power, authority and vision in a group organization or country (Connell et al, 156). An acorn is small seed from an oak tree. Normally, it is green and most fall of the tree when matured. When they fall off from the mother tree, another oak tree can emerge from the fallen seeds. The procedure is normally performed thoroughly over and over until a whole forest emerges from a single acorn. This helps to symbolize the process of achieving greatness by starting out from scratch. This concept is applied to encourage people whose lives or worlds have fallen that they can still achieve greatness l ife. It encourages people to realize their full potential (Cornwell et al, 78). If an acorn with no brains can become a forest, what can a person with brains and senses achieve if he puts his minds to it? This is a symbol of hope to those who feel their destined fail due to a single fall or slip at one point in their lives or careers. Imagine an acorn that has fallen down - it has no survival techniques and yet a forest can emerge from it. This has been

International Business Management UNIT4DB Essay Example | Topics and Well Written Essays - 500 words

International Business Management UNIT4DB - Essay Example If companies like Boeing and Volkswagen would go along with China's terms it brings benefits for both China and international companies. Globalization of trade opens new opportunities for MNEs to compete on the global market. In this case, the international organization must be responsive to change through people employed by it and new environment it operates. Without cooperation and information interchange, many foreign companies will fail to perform successfully in China. On the other hand, International Business Studies and International Human Resource Management are the main fields of research which make information available for a wide target audience. Contemporary developments in the field of IHRM suggest that if Chinese companies learn modern management skills from non-Chinese companies and acquire technology it create great opportunities for both parties and help them to overcome national differences and cultural diversity. The main problem is that modern management skills is truly international and used by many companies around the world. On the one hand, contemporary developments in the field of IHRM "incor porate the broader contextual reality" (Schuler et al 2002:.43).

Heraldic shield Research Paper Example | Topics and Well Written Essays - 1500 words

Heraldic shield - Research Paper Example The very shield in question has several constituents. The eagle can be used as a symbol of representing power authority and the sun. The eagle is the king of the birds; this shows authority it has over other creatures. Rarely do eagles lose in combat; this shows they have strength and power to rule. Therefore, they symbolize strong and powerful leadership. Indian herbalists and wizards use the feathers of eagles in their treatment of the sick. This shows that the eagle has a medicinal value and this can be used to symbolize the gift to give life to the hopeless. Eagles have been known to have a clear vision and soaring spirit. These are best qualities a leader can have; a clear vision means that the leader can make wise and just decisions. A soaring spirit means the leader is always aiming for more. This symbolizes the initiative and ambitions that an exemplary leader should have in order to lead his or people to greater prosperity (Bentley et al, 54). This is the main reason why eag les are connected with wealth and prosperity. The most outstanding character that distinguishes the eagle from other living creatures is the ability to take responsibility. The eagle is monogamous in nature; interestingly, the male and female eagles both share the responsibility of taking care of their young ones. This is not only symbolic but also enlightening. This shows responsibility as the leader should be responsible enough in order to lead people. This as well helps to advice people who tend to run away from responsibilities like taking care of their young ones. The eagles can be used to represent freedom. This observation is ttained by the size of their territories; an eagle can have a home ranging in thousands of acres this shows that the eagles are not afraid of conquering new territories in the bid of enjoying their freedom (Bohl & Rynn 85). In most mythical beliefs, it is said that the spirits of the eagles are free and independent creatures that roam alone. Through this aid in educating people on the significance of being free, we are able to make choices alone without relying on others every time because, in life, some decisions are made alone as they are personal. This symbolizes the rights and freedom of an individual to choose their own paths in life that seem suitable to them. The picture of the eagle in heraldic shield demonstrates exceptional leadership, power, authority and vision in a group organization or country (Connell et al, 156). An acorn is small seed from an oak tree. Normally, it is green and most fall of the tree when matured. When they fall off from the mother tree, another oak tree can emerge from the fallen seeds. The procedure is normally performed thoroughly over and over until a whole forest emerges from a single acorn. This helps to symbolize the process of achieving greatness by starting out from scratch. This concept is applied to encourage people whose lives or worlds have fallen that they can still achieve greatness l ife. It encourages people to realize their full potential (Cornwell et al, 78). If an acorn with no brains can become a forest, what can a person with brains and senses achieve if he puts his minds to it? This is a symbol of hope to those who feel their destined fail due to a single fall or slip at one point in their lives or careers. Imagine an acorn that has fallen down - it has no survival techniques and yet a forest can emerge from it. This has been

United States involvement in Vietnam War Essay Example | Topics and Well Written Essays - 1250 words

United States involvement in Vietnam War - Essay Example e issue of the country’s involvement in wars is usually an emotive one, which usually divides the country into two groups with one group supporting the war while the other group opposes the war. The opponents identify the loss of life, exhaustion of the country’s economic resources and unethical practices by some US troops as the main reason of opposing any war. On the other hand, the other group identifies with the country’s involvement in wars as important since the country, as a super power, has a right to establish order and world security, which is essential for the safety of the country. However, the two groups agree that the country’s interest should be instrumental although they only differ on the approaches to use in achieving the interests of the country. This is the case with the United States involvement in the Vietnam War documented in thousands of literature material, which still stirs up emotions and differences of opinions to date. Focusing on the Vietnam War, this expose elucidates on the United States involvement in the war. First, it is important to explicate the build-up to the circumstances that lead to the United States involvement in the Vietnam War. Prior to the United States involvement in the Vietnam War, the Vietnamese were under French rule both before and after the World War 2. Before the Second World War, France occupied Vietnam and colonized the country in a similar way to other Western powers that had colonies in other places. However, France was ceding ground to the Germans and effectively diverted its attention from some of its colonies, like Vietnam, and focused its attention to protect its country. In effect, the Japanese occupied Vietnam after driving out the French although the Vietnamese subsequently defeated the Japanese with Ho Chi Minh declaring the country’s independence in 1945 under the name Democratic Republic of Vietnam (DRV) with the assistance of US soldiers. In effect, this was the first significant

Of Kind and Cruel Fates Essay Example for Free

Of Kind and Cruel Fates Essay Irony, in its essence, is the humor of contradiction. It is contradiction, in the sense that where we would expect events to lean on one way, events instead completely take the opposite direction. A crude example would be where a string of freak accidents occur at a factory where the manager is showing off to his potential clients that his company is â€Å"accident-free†. Irony is humorous because if one saw it with impartiality, one would find it funny. Having a car accident right after a road is â€Å"improved† to avoid further accidents, would be funny. To study irony further, one could study an average persons sense of humor. While as a child, he may delight in the curiosities of the environment, eventually he becomes adjusted to seeing it everyday, and eventually his enjoyment of it fades. Humor takes on a different characteristic for him. There is the slapstick comedy, where he finds the antics of the performers as funny and absurd, and there is the situational comedy, where he finds funny ordinary people falling to ridiculous situations. The common thread to this humor is that it attacks at something. Whether it is to ridicule a person behaving out of the social norm (as the slapstick), or to ridicule a persons belief or principle that is generally viewed as absurd (the parody), the higher the degree of abuse at the object of humor, the funnier. Irony, then, is humorous in the sense that it attacks something, through its contradiction. As an impartial viewer, we may find funny things that we know to be true as envisioned by the ironic set-up, but which is obscured in the minds of those who are involved in the irony. Humor moreover has intrinsic values it seeks to instill to its impartial witnesses, and consequently irony occurs as some way to inform the viewer of a cosmic lesson. We can delve in this further through the study of three stories, Tartuffe, The Princess of Cleves, and Nathan the Wise. There are several ironic situations that occur throughout the play Tartuffe. The story revolves around a household scandalized by having its head (the father) entertain and welcome as part of the family a man who openly and vocally shows his displeasure at what he deems as vices borne by the various members of the family and the house. One of the first ironic situations occurs with the son, Damis, who hides in the room while Tartuffe has a private conversation with his mother, Elmire. His intention is to unmask Tartuffe to his father as a hypocrite and get him out of the house (Moliere, 39-46). When he finally sees evidence of the mans scandalous behavior towards his mother and reveals it to his father, not only does his father not believe (owing to the hypocrites skillful use of words), but has Damis instead kicked out and even encourages Tartuffe to continue his scandalous behavior towards his wife, in order to spite his family (47-51). The humor in the situation centered on how big a fool the father was to believe in Tartuffes virtue, and an even bigger fool not to see the truth when it is right in front of him. This is further stressed in the next ironic situation, where after Orgon (the father) finally realizes the extent of his friends deceit, he tries to tell his mother, who was also fooled by the hypocrite. For all his protestations she does not believe him until she sees it herself (Moliere, 68-71). The irony is that where he once ignored the loud protests of his family, likewise his mother does not believe him, even for his loud protests. The final ironic twist, however, turns out for the good as the hypocrite Tartuffe, having been unmasked and set his plans for revenge, intrigues on the King and plans to have them all arrested, only to have him as the object of arrest, as the King was â€Å"wise† to his intrigues (77-80). The play has these alternating reversal of fortunes, and its ironic humor attacks two things: that blind faith without reason in open Virtue is folly, and that any malice masked in virtue never remains unpunished. A more tragic tale of irony is that of the Princess of Cleves. Introduced to a court as Madam Chartres, she wins the affection of the Prince of Cleves, who endeavor to marry her despite the protests of his father; she falls, however for someone else, the Duke Nemours (Lafayette, 15-17). The story then centers around him trying to find the opportunity to confess his love, and she, now married, desperately tries to stave off his affections while suppressing hers. We do not see the irony unfold until the very end: the Princess anguishes over her affection for the Duke throughout her marriage, but following the death of her husband suddenly she has a change of heart and is convinced that her husband was a far better man than the Duke (101-107). It is only after the husband dies and they finally have an opportunity to be together does she decide not to be with the Duke. The irony here attacks the notion that love borne from adulterous intention will eventually bear fruit. It might have been attack towards the growing acceptance of the public towards the notion of infidelity, (almost every character is involved in an affair with someone else) and their giving it idealistic fervor. The Princess of Cleves, despite the best of her intentions, continued to bear her love to someone else, and pined for that other person, and consequently, in her husbands death she realized her folly too late, and chose to suffer the rest of her life in that guilt. Nathan the Wise has such a complicated string of ironies, that one who skims through even the slightest of details would not appreciate the ironies that eventually occur. Originally, the story of the Jewish merchant Nathan centered around the Muslim conqueror Saladin trying to fool him out of his money—and this tale has found itself in the pages of Boccaccios Decameron. Nathan answers so skillfully that ironically it was Saladin who was put to shame by his own question and humbled before the Jew (Lessing, 90-97). This story is, however, expanded by Gotthold Ephraim Lessing, and this encounter between the Egyptian conqueror and the Jew becomes the main theme. The tale then revolves around a Templar, who was pardoned by Saladin for the reason that he resembled the conquerors brother (Lessing, 36); the consequences of his rescue of a Jewish maiden (and subsequent encounter of the grateful surrogate father Nathan), and the intrigues of the Patriarch who would have him either kill Saladin or turn over Nathan, who he found had raised a Christian child to the Jewish faith (the same Jewess he rescued) (37-40). The irony, from an impartial point of view, might have been to some degree absurd. The Templar, in almost the fashion of Oedipus, tries desperately to seek the truth, and unmask what he sees in his prejudice as malice committed by the Jew Nathan (Lessing, 109-127). And, also in the fashion of Oedipus, not only does he discover that the girl he was trying to save (and hope to marry) was his sister, but Saladin who he would have killed had he agreed to the Patriarch, was his uncle after all (165-172). The irony also hits Saladin, as his pardoning the Templar Conrad because he looked like his brother, redounds to the truth that Conrad was his brothers son. While the ironic twist might seem ridiculous to the trained eye, in the sense it fits to the lesson first imparted by Nathan to Saladin: that all men are equal before God, regardless of Faith. This is a happier chide at the Medieval sensibility of hostility between Faiths. Irony is humorous, because we find that the contradiction it creates makes sense. We might have felt our sensibilities offended when we saw that the Princess of Cleves did not end up with the Duke Nemours, but the cosmic twist was to show to us that infidelity was wrong. We would have preferred that the Templar should have instead ended up marrying the Jewess, but the irony was there to impart the lesson that prejudice has, after all, no place in the world. We sometimes do not find ironic circumstances that funny, as if we lived the life of Duke Nemours or became as aghast as the Templar Conrad. But eventually, we will learn that the contradiction was to impart to us that our plans may go completely the other way, because they may not have been right in the first place. And, the wiser we become to this truth, the more we will realize that irony, though it might strike sad for us, has a reason. The better we accept this, the more we will be prepared to just take a step back, take a view of the bigger picture, and laugh. WORKS CITED Lafayette, Madame de. The Princess of Cleves. New York: Project Gutenberg. 27 Sept. 2008 http://www. gutenberg. org/files/467/467. txt. Lessing, Gotthold Ephraim. Nathan the Wise. New York: Page, Curtis. Project Gutenberg. 01 Mar. 2003. http://www. gutenberg. org/dirs/etext03/natws10. txt. Moliere, Jean Baptiste. Tartuffe. New York: Project Gutenberg. 26 Oct. 2008. http://www. gutenberg. org/files/2027/2027. txt.

Radial Ball Bearing Material

Radial Ball Bearing Material You are tasked with selecting a material that is suitable for the balls in a radial ball bearing such as the one shown in Fig. 1. Radial ball bearings although intended primarily for radial loads, will also carry a certain amount of thrust.    Ball Figure 1 Ball bearing The following details are known in relation to radial ball bearing design: Youngs modulus should have a minimum of 200 GPa. The compressive strength should have a value à ¯Ã¢â‚¬Å¡Ã‚ ³ 300 MPa. The balls must not fail under load. It can be assumed that the contact stress can be modelled for a sphere on a flat (see Fig. 1). An assumption should be made that the material for the ball and the raceway are the same and therefore they have the same moduli and Poissons ratio has a value of 1/3. The balls should be light. Material selection process. This refers to selecting a material that meets all the constraints and objective below. Design requirements: Table 1 Table of design requirements Function   Suitable for balls in a radial ball bearing Constraints Youngs modulus must be greater than 200 Gpa. Compressive strength should not have a value of less than 300Mpa. (Assumption)Moduli and Poissons ratio being the same (ratio of ). Objectives The balls must not fail under load, contact should be modelled for a sphere on a flat. The balls should be light. Free variables Cross sectional area Material choice Mass of ball Below is a figure of all materials with a mechanical property (Youngs modulus greater than 200Gpa and Compressive strength greater than 300Mps) against density: Seen below is a table of the materials and their corresponding Youngs modulus. Table 2 Table of materials Name Youngs modulus (GPa) Tungsten carbides 625 700 Boron carbide 440 472 Silicon carbide 400 460 Alumina 343 390 Tungsten alloys 310 380 Aluminium nitride 302 348 Silicon nitride 290 318 Zirconia 200 250 Nickel-based super alloys 150 245 Nickel-chromium alloys 200 220 Nickel 190 220 Low alloy steel 205 217 Medium carbon steel 200 216 Low carbon steel 200 215 High carbon steel 200 215 Stainless steel 210 Although seen above, 16 values have passed the requirements so far, further analysis will be conducted, and this can be seen below; The below table illustrates the materials that meet the design requirements, the table is ranked based on Youngs modulus, from highest modulus to lowest. The Compressive strength of the material must also be considered, a minimum compressive strength of 300MPa must apply. The table below illustrates each materials Youngs modulus and corresponding compressive strength. Table 3 Materials with Youngs modulus and compressive strengths that meet design requirements (density also noted) Name Youngs modulus (GPa) Compressive strength (MPa) Tungsten carbides 625 700 3.35e3 6.83e3 Boron carbide 440 472 2.58e3 5.69e3 Silicon carbide 400 460 690 5.5e3 Alumina 343 390 690 5.5e3 Tungsten alloys 310 380 555 800 Aluminium nitride 302 348 1.97e3 2.5e3 Silicon nitride 290 318 524 5.5e3 Zirconia 200 250 3.6e3 5.2e3 Nickel-based super alloys 150 245 300 1.9e3 Nickel-chromium alloys 200 220 365 460 Nickel 190 220 70 1e3 Low alloy steel 205 217 400 1.5e3 Medium carbon steel 200 216 305 1.76e3 Low carbon steel 200 215 250 395 High carbon steel 200 215 335 1.16e3 Stainless steel 189 210 170 1e3 Below is a bubble chart of Youngs modulus versus compressive strength: Figure 2 Bubble chart of Youngs modulus of Compressive strength The above figure is on a logarithmic scale. Only materials that have passed the requirements were plotted. When surfaces are placed in contact they touch at one or a few discrete points. If the surfaces are loaded, the contacts flatten elastically and the contact areas grow until failure of some sort occurs. (Duffy, 2010) Compressive stress causes this. As the requirements state; should be modelled as a sphere on a flat, this allows the student to use following formulae (contact stresses); Figure 3 Sphere on a flat (Duffy, 2010) (Yield Stress)   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   The following is subbed in to produce the below: x x x x = = The mass of the sphere must be derived, this is done below; Where is density and is volume Volume of a sphere is denoted as: m= The student knows the objective is to minimise the mass of the ball, the derivation above is done on that basis and results in the equation being flipped above. From the material selection index above, the equation can be related in the logarithmic scale: = This results in: This now means the slope can be known to be = 0.222 The above value is known as an index line; Index lines can be used to compare the performance of different materials, and to find replacement materials. Materials that are on the line will all perform equally well in each design. Materials above the line have a higher performance index and will therefore perform better; those below the line have a lower index value. (Edupack, 2006) The below bubble chart illustrates the material selection process using the slope; Figure 4 Material selection with material index As seen from above, with a material index of 0.222 the following two materials passed (whole record is within the selection was used); Name Index slope =0.2222 Silicon nitride 6.55e101 Zirconia 1.66e100 As seen from above the materials are both ceramic. An additional chart plotting the materials costs can also be seen below; Figure 5 Price of selected material Figure 6 Price of selected material Pass only A table of the materials cost can also be seen below; Table 4 Table of costs Name Price(EUR/kg) Zirconia 17.1-24.7 Silicon nitride 32.3-49.4 (i) It has been identified that both Youngs modulus and compressive strength are important material properties when selectin ball bearings, below is a detailed summary of why each property is important; Youngs modulus refers to a materials elastic modulus. This determines the stiffness of a solid material. This is a proportional (constant) between stress as long as stress is less than the yield point. This results in a smaller strain with the same stress in a stiffer material. In relation to a ball bearing Youngs modulus of Silicon nitride is about 1.5 times that of steel, meaning a smaller contact surface is present when there is a high contact pressure. Hertz theory means the maximum load for combination steel- Silicon nitride reduced with 30%. In relation to the contact of the bearing we know it will be a sphere on a flat. The balls within a bearing are going to experience both an axial and radial force. If the force is too great for the material this may result in deformation (changing of shape). This affects the ball bearings ability to perform, this can be compared to as a wheel on a car, if it is flat may result in a pulling motion. If severe deformation occurred this may result in the bearing not allowing for rotation. This means that Youngs modulus is important when selecting materials for ball bearings. Youngs modulus mathematical representation; It is noted from CES EduPack that silicon nitride is used mostly for ball bearings the Youngs modulus is known to be; 290-318 GPa (Edupack, 2006) Compressive strength refers to a materials resistance to compressive stress. This is when a force is applied in an inwards direction in the material. It is opposite to tensile stress. As a ball bearing is going to have one point of contact, (below) compressive strength is an important element in choosing the material. This is due to the radial forces applied when the ball is in the raceway. Once again, if the radial force is greater than the materials compressive strength abilities this will result in deformation. This will affect the bearings performance. Compressive strength can be up to 10 times greater than tensile stress. Ceramic material has a good compressive strength due to crack propagation, since there are more internal cracks in ceramics (than most materials) if placed under tension cracks will propagate and produce failure where if it is placed under compression it works in the opposite manner. Compressive strength mathematical representation; It is noted from CES EduPack that silicon nitride is used mostly for ball bearings the compressive strength is known to be; 524-5.5e3 MPa   (Edupack, 2006) (ii) The other material properties of Silicon Nitride which lead to superior operating performance can be seen below; General properties Density3.1e3-3.4e3kg/m^3 Price*32.3-49.4EUR/kg Date first used1958 Mechanical properties Youngs modulus290-318GPa Shear modulus*100-128GPa Bulk modulus*210-232GPa Poissons ratio0.26-0.28 Yield strength (elastic limit)*600-720MPa Tensile strength600-720MPa Compressive strength524-5.5e3MPa Elongation0% strain Hardness Vickers1.4e3-1.6e3HV Fatigue strength at 10^7 cycles*300-500MPa Fracture toughness4-6. 7MPa.m^0.5 Mechanical loss coefficient (tan delta)*2e-5-5e-5 Thermal properties Melting point2.39e3-2.5e3 °C Maximum service temperature1e3-1.2e3 °C Minimum service temperature-272271 °C Thermal conductor or insulator?Good conductor Thermal conductivity22-30W/m. °C Specific heat capacity670-800J/kg. °C Thermal expansion coefficient3.2-3.6 µstrain/ °C Electrical properties Electrical conductor or insulator?Good insulator Electrical resistivity1e20-1e21 µohm.cm Dielectric constant (relative permittivity)7.9-8.1 Dissipation factor (dielectric loss tangent)*5e-4-7e-4 Dielectric strength (dielectric breakdown)*11-131000000 V/m Optical properties TransparencyTranslucent Refractive index1.95-2 Processability Moldability2-3 Weldability1-2 Eco properties Embodied energy, primary production116-128MJ/kg CO2 footprint, primary production4.63-5.12kg/kg RecycleRecycle (Edupack, 2006) The above characteristics result ceramic materials being the optimum material for ball bearings; High speed, faster acceleration this is because ceramics are only 40% as dense as steel. However, the material can deliver 30-50% higher running speeds with reduced skidding and less lubrication needed. Lighter in weight ceramic ball bearings are more rigid to that of steel ball bearings and lighter in weight.   This allows for lower coefficients and a higher overall RPM (rotation per minute) Greater accuracy since ceramics has 50% higher modulus of elasticity than steel. This means less of a deformation which leads to vibration and spindle deflection, this increases components productivity and quality. Reduced friction: benefits of this include: longer life, energy efficiency reduced noise levels, less heat and less lubrication needed. Non-conductive materials like Silicon nitride eliminate the pitting and fluting of raceways which ic common in electrical motor applications. If steel is used in bearings the electricity could cause magnetic field (EMF) and this could act as a conducted damaging the bearings over time. Ceramic materials are immune to EMF, which mean they perform well even when electricity is present. Corrosion resistance Silicon nitride; more effective than steel balls in the presence of liquids such as water or corrosive materials. Corrosion resistance can be enhanced when ceramic balls are used with dry fil, lubricant on the ring and retainer components. Longer operating life Up to 5 to 10 times longer than standard metal bearings. Higher temperature operation ceramic ball bearings can operate in high temperatures (up to 1,800  °F) Less noise and vibration due to a lower coefficient of friction (Ibsco, 2011) The two materials chose were Silicon Nitride and Zirconia. A brief description can be seen below outlining why the individual ceramic is the optimum choice; Silicon Nitride: This material contains high temperature capabilities, meaning it has a low thermal expansion coefficient which gives good thermal shock resistance compared to other ceramic materials. The material is up to 58% lighter than steel silicon (Carter, 2009). As the material is lighter it means a smaller force is needed to roll the element. The main advantage to this is that silicon nitride can carry similar loads to that of silicon steel with less force needed. Zirconia: Zirconia was made for high performance duties such as (atmospheric journeys). This means the material has the highest temperature ability. However, this material has a high thermal expansion (almost like steel) but weighs less so it does not have the same weight saving and thermal shock resistance found in other ceramic materials. (Carter, 2009) Zirconia is used when low loads are applied or when high temperature capabilities are needed (corrosive too). (iii) Porosity refers to a measure of void (empty spaces in a material) and is a fraction of the volume of voids over the total volume between 0% and 100% (Quora, 2003) Technical ceramics do not have open porosity. To achieve porosity manufacturing process must be done (use of additives). This then allows closed and open pores to be created, ranging from nm to  µm. Porosity can have various effects on the mechanical properties of ceramics (as chosen). The following properties are effected: Compressive strength Density Fatigue Youngs modulus Fracture toughness Shear modulus Tensile strength Any residual porosity will influence elastic properties and strength. For some materials, the magnitude of the modulus of elasticity E decreases with volume fraction per; It is known that porosity affects flexural strength as it reduces cross-sectional area. It also results in pores acting as stress concentrates. (Duffy, 2010) (iv) Below is a completed table for ceramic materials having 20vol% porosity. This is done by using the following; The below calculation for silicon nitride is done for clarity; ) = 199.424 GPa Where is the modulus of elasticity and is the porosity volume. Table 5 Ceramic materials with 20vol% Material Modulus of Elasticity GPa Porosity at 20vol% E(20%) Porosity GPa Silicon nitirde 304 0.2 199.424 Zirconia 205 0.2 134.48 Silicon carbide 345 0.2 226.32 Aluminum oxide 393 0.2 257.808 Glass-ceramic 120 0.2 78.72 Mullite 145 0.2 95.12 Spinel 260 0.2 170.56 Magnesium oxide 225 0.2 147.6 Fused silica 73 0.2 47.888 Soda-lime glass 69 0.2 45.264 As seen from the above, silicon nitride is the ceramic material resulting in a modulus of elasticity when having a porosity volume of 20%. References Carter, 2009. Carter. [Online] Available at: http://www.carterbearings.co.uk/unasis/hybrid-and-ceramic-bearings/ceramic-matericals-and-their-properties-part-2/[Accessed Saturday Feburary 2017]. Duffy, J., 2010. Moodle. [Online] Available at: http://moodle.itb.ie/pluginfile.php/115304/mod_resource/content/0/CES%20EduPack%20-%20USEFUL%20SOLUTIONS%20to%20COMMON%20PROBLEMS%202008%20-%2001Jan13.pdf[Accessed Wednesday Feburary 2017]. Edupack, C., 2006. s.l.: s.n. Ibsco, 2011. Ibsco. [Online] Available at: http://www.ibsco.com/ceramic-ball-bearings.php[Accessed Saturday Feburary 2017]. Quora, 2003. Quora. [Online] Available at: 2017[Accessed Wednesday Feburary 2017].

World War II Inventions :: essays research papers

Between 1939 and 1945, WWII brought many innovations and inventions to the world. New countries, organizations, weapons, and technological advances were produced. The three that had the maximum impact on the war were the invention of the radar, aircraft, and the atomic bomb because of their effective uses. The first practical radar system was invented in 1935 by the Scottish physicist Robert Alexander Watson, but it was later developed by the English during WWII. The radar was used to determine where a distant object was, how big it was, what shape it had, how fast it was moving and in which direction it was going. When Germany sent 2,000 planes every night for two solid months to try to gain control of the skies by destroying Britain’s nuclear air force, British pilots accurately plotted the flight paths of German planes , even in the darkness, due to the radar. The radar is important because it prevents planes to crash into each other and it is used today to manage traffic control, to detect missiles, and to detect weather conditions. Aircraft impacted WWII in a major way, it was the main weapon. Fighter aircraft of the second world war featured all the innovations of the 1930s. Piston-engined fighters continued to be refined and developed with increasing performance and capabilities. Planes were used in WWII because they were fast and because they could attack on land and sea. Planes impacted the history of the world because they were used to attack Britain by the Germans, they were used on the attack of pearl harbor and they were used to drop the atomic bomb on Hiroshima and Nagasaki. Planes played a significant role because they were the major attacking utensil used in this war. Unlike aircraft, the atomic bomb wasn’t used so much but it created more damage than planes and it ended war. The atomic bomb’s explosive power originates when the nucleus of a heavy atom is split. The uranium in an atomic bomb can release one million times as much energy as TNT. The Fission bomb impacted the world because it exterminated Hiroshima and Nagasaki, killing about 140.000 thousand people and injuring thousands. These bombs created Thermal radiation, which results from the extremely high temperatures created by an atomic explosion, causes serious burns on exposed parts of the body and may ignite fires over a wide radius.

Things Arent Always What They Seem :: essays research papers

Things Aren't Always What They Seem   Ã‚  Ã‚  Ã‚  Ã‚  As a Hispanic young man, I have witnessed many racial remarks and expressions. Many people think I am Anglo-Saxon because I am light complected. I have not only noticed racial slurs from Angle's, but also from Hispanics. People tend to open up in front of me, because some of them think I am Anglo- Saxon and do not know Spanish. I can recall the first day of summer school, my first day of work, and the time that Anglos' stare at my girlfriend wondering why I left their race for a hispanic girl.   Ã‚  Ã‚  Ã‚  Ã‚  My first day of summer school was a day I will never forget. As I walked into my class the students just looked up at me and stared as if I was a portrait. In a polite manner, the teacher told me to sit next to those girls at the corner. At first they were quiet and then the whispers began. â€Å"Oye chulo,† they began to call me. I didn't know what to do, so I did what any guy with a great girlfriend would do, played dumb. Then they began telling each other that I was probably rich and conceited. Their remarks about my clothing and the color of my eyes and hair, surprised me. I was not upset because they were Hispanic. I am sure that I would have been mad if an Anglo-saxon girl would have talked bad about a hispanic guy or girl.   Ã‚  Ã‚  Ã‚  Ã‚  Another time hispanics thought I was Anglo-saxon, was when my best friend's dad got me a job at his company. The first day he showed me around and majority of the workers were hispanic; once again they all looked at me again. My first encounter with my racist co-workers was during lunch. As I sat down to eat my sandwich, the guy I got to know asked me if I wanted to try some Mexican food. That's when I gave him this expression that must have stunned him, because he asked me what was wrong. I told him, â€Å"What, do you think I've never eaten Mexican food or what?†   Ã‚  Ã‚  Ã‚  Ã‚  He replied, â€Å"Sorry, I didn't think know white people knew anything about Mexican food other than tacos.†   Ã‚  Ã‚  Ã‚  Ã‚  Ã¢â‚¬Å"I am not white, I am a mexican just like you!† I exclaimed. From that day forth I was treated just like one of the guys. It is strange that hispanics are always fighting for equality and an end to discrimination. Ironically, they are the one's that are being racist.   Ã‚  Ã‚  Ã‚  Ã‚  The only time I can recall being treated wrong by Anglo-Saxons, was the

Computer Hacking

Criminology Hacking Exposed Jacqueline Hunt June 10, 2012 Week 9 Assignment 6 Computer hacking has become a more frequent crime in today’s society. Due to the fact that computers are widely used throughout the world and all information is right at your fingertips in a matter of seconds, hacking is an effortless crime, but it comes with a tremendous gain. Albert Gonzalez was fascinated by technology â€Å"computer nerd† but he took it all as an easy way for monetary gain. Gonzalez stole 170 million credit and debit card numbers and either used them or sold them to other cyber criminals.Gonzalez case is the biggest hacker case in history it all ended in him serving a two twenty year concurrent sentences. â€Å"His parents, who had immigrated to the United States from Cuba in the 1970s, bought him his first computer when he was 8. By the age of 9 he was reported to be actively removing computer viruses. Gonzalez, a Cuban-American, attended South Miami High School in Miami , Florida, where he was described as the â€Å"troubled† pack leader of computer nerds . In his senior year at the school he and friend used the library computer to hack into computer systems of the government of India where they left messages about their culture.Reportedly India had to cancel government checks as a result. Gonzalez was not charged and was warned to stay away from a computer for six months. In 2000 he moved to New York City where he lived for three months before moving to Kearny, New Jersey. †(Wikipedia, 2012) Gonzalez ran a scheme with a group of hackers called Shadow crew. They managed to traffic 1. 5 million stolen credit and debit card numbers while in New Jersey. The domain name Shadowcrew. cc was being investigated by The Secret Service â€Å"Operation Firewall† and it is believed that $4. million was stolen. The investigation involved countries like Bulgaria, Belarus, Canada, Poland, Sweden, the Netherlands, Ukraine, and the U. S. Gonzalez avoided jail time by providing evidence to the United States Secret Service against his associates. After 19 of Shadow crew hackers were indicted he then returned back home to Miami. As a Secret Service informant he earned 75, 000 a year and he continued his hacking business right under their noses. He used SQL injections and malware backdoors as tools to his biggest heist.He called the scheme Operation: Get Rich or Die Tryin’, which is a famous movie about the life of rapper 50 cent, he breached systems like Citibank, 7-Eleven, Hannaford Brothers, J. C. Penny, Target, T J Maxx, Dave & Busters and stole credit card data and resold it to international cyber criminals. His goal was to earn up to 15 million dollars, buy a yacht, and then retire. Those plans were foiled by the investigation which leads to end of his schemes. The debit from the crimes totaled a staggering 4. 1 million dollars. This type of hacker is known as the Addict. In the trial he was sentenced to two twenty year concurrent sentences, ordered to pay a 25,000 dollar fine, and he was ordered restitution. He claims his motive for the crimes he committed, was that he possessed technical curiosity and he had an obsession with conquering computer networks. He also stated that his work for the secret service was to seek out cyber criminals, which he used to his advantage to make his plan work. †(Zetter, 2010) I feel that Gonzalez is an addict hacker because he committed the crime more than once.Gonzalez was even in a situation where he worked for the people who put criminals away and he still could not stop his criminal acts. The sentence he is now serving is just. This crime could have been deterred by the idea that a criminal should not get a second chance. If he was serving time for his first crime the operation: Get Rich or Die Tryin’ would have never came about because he would not have had the access to international cyber criminals. The government should have more strict p olicies on who is used for informants and the hiring process.Gonzalez proved to be a very skillful and intelligent hacker. References Guadin, Sharon Computerworld. com. Government Informant is called kingpin. 18 August 2009 Wikipedia. com. Albert Gonzalez. 4 June 2012 Zetter, Sharon Wired. com. Tjx hacker charged with Heartland. 25 March 2010 < http://www. wired. com/threatlevel/2009/08/tjx-hacker-charged-with-heartland/> Computer Hacking Criminology Hacking Exposed Jacqueline Hunt June 10, 2012 Week 9 Assignment 6 Computer hacking has become a more frequent crime in today’s society. Due to the fact that computers are widely used throughout the world and all information is right at your fingertips in a matter of seconds, hacking is an effortless crime, but it comes with a tremendous gain. Albert Gonzalez was fascinated by technology â€Å"computer nerd† but he took it all as an easy way for monetary gain. Gonzalez stole 170 million credit and debit card numbers and either used them or sold them to other cyber criminals.Gonzalez case is the biggest hacker case in history it all ended in him serving a two twenty year concurrent sentences. â€Å"His parents, who had immigrated to the United States from Cuba in the 1970s, bought him his first computer when he was 8. By the age of 9 he was reported to be actively removing computer viruses. Gonzalez, a Cuban-American, attended South Miami High School in Miami , Florida, where he was described as the â€Å"troubled† pack leader of computer nerds . In his senior year at the school he and friend used the library computer to hack into computer systems of the government of India where they left messages about their culture.Reportedly India had to cancel government checks as a result. Gonzalez was not charged and was warned to stay away from a computer for six months. In 2000 he moved to New York City where he lived for three months before moving to Kearny, New Jersey. †(Wikipedia, 2012) Gonzalez ran a scheme with a group of hackers called Shadow crew. They managed to traffic 1. 5 million stolen credit and debit card numbers while in New Jersey. The domain name Shadowcrew. cc was being investigated by The Secret Service â€Å"Operation Firewall† and it is believed that $4. million was stolen. The investigation involved countries like Bulgaria, Belarus, Canada, Poland, Sweden, the Netherlands, Ukraine, and the U. S. Gonzalez avoided jail time by providing evidence to the United States Secret Service against his associates. After 19 of Shadow crew hackers were indicted he then returned back home to Miami. As a Secret Service informant he earned 75, 000 a year and he continued his hacking business right under their noses. He used SQL injections and malware backdoors as tools to his biggest heist.He called the scheme Operation: Get Rich or Die Tryin’, which is a famous movie about the life of rapper 50 cent, he breached systems like Citibank, 7-Eleven, Hannaford Brothers, J. C. Penny, Target, T J Maxx, Dave & Busters and stole credit card data and resold it to international cyber criminals. His goal was to earn up to 15 million dollars, buy a yacht, and then retire. Those plans were foiled by the investigation which leads to end of his schemes. The debit from the crimes totaled a staggering 4. 1 million dollars. This type of hacker is known as the Addict. In the trial he was sentenced to two twenty year concurrent sentences, ordered to pay a 25,000 dollar fine, and he was ordered restitution. He claims his motive for the crimes he committed, was that he possessed technical curiosity and he had an obsession with conquering computer networks. He also stated that his work for the secret service was to seek out cyber criminals, which he used to his advantage to make his plan work. †(Zetter, 2010) I feel that Gonzalez is an addict hacker because he committed the crime more than once.Gonzalez was even in a situation where he worked for the people who put criminals away and he still could not stop his criminal acts. The sentence he is now serving is just. This crime could have been deterred by the idea that a criminal should not get a second chance. If he was serving time for his first crime the operation: Get Rich or Die Tryin’ would have never came about because he would not have had the access to international cyber criminals. The government should have more strict p olicies on who is used for informants and the hiring process.Gonzalez proved to be a very skillful and intelligent hacker. References Guadin, Sharon Computerworld. com. Government Informant is called kingpin. 18 August 2009 Wikipedia. com. Albert Gonzalez. 4 June 2012 Zetter, Sharon Wired. com. Tjx hacker charged with Heartland. 25 March 2010 < http://www. wired. com/threatlevel/2009/08/tjx-hacker-charged-with-heartland/>

How is horror created in ‘The Pit and the Pendulum’? Essay

In the short story ‘The Pit and the Pendulum’ by Edgar Allan Poe, he uses many different techniques to create horror. Poe starts off by stating that the narrator was ‘sick – sick unto death’. The repetition of the word sick here emphasis how bad he feels, also ‘sick unto death’ suggests that he already feels like he is dead. Death is emphasised more with ‘the dread sentence of death’. This emphasis on death is telling us that he is metaphorically already dead. Poe then describes the expressions on the black robed judge’s face as ‘stern contempt of human torture’. This description suggests a grotesque look upon their face. The word torture also gives a sense of capture, which is also emphasised by ‘permitted to sit’ as permitted gives a feeling that someone is keeping authority over him at all time. Death is once again emphasised as he describes the darkness as a soul descending ‘into Hades’. With Hades being the Greek God of the underworld it is like the narrator has been enveloped by death. Again it is emphasised by, ‘How at least shall we distinguish its shadows from those of the tomb?’, this description tells us that the narrator is not sure whether or not he is dead or alive. Or this could suggest that he is coming to accept the fact that this place is going to be his tomb as there is no escape in sight. The narrator describes how he dares ‘not to employ my vision’. This shows us that he is afraid to open his eyes as he is afraid that he will either see some terrible sights before him. Or that he will open his eyes and there will be nothing and he will be dead. When he opens his eyes he describes it as ‘the blackness of eternal night encompassed me’. This shows us that his surroundings completely and utterly black, there is nothing to be seen. This suggests horror as many people are scared of what lurks in the dark. He then goes on to say ‘Yet not for a moment did I suppose myself actually dead’, this description tells us that, while he did not actually think he was dead, he had to have felt like that. Poe uses real life locations that had places of torture during the Spanish inquisition as a description, ‘as well as the condemned cells at Toledo’. This use of real life locations gives an insight to how gruesome the torturing that the narrator is going through even more gruesome as they really exsisted. The theme of light plays a large part in creating horror. The narrator first describes how he is desperate ‘in the hope of catching some faint ray of light’ this shows he is starting to get slightly crazy in the hope of seeing light. He also describes it as a ‘subterranean world of darkness’, which is effective as the dungeon was described as ‘damp’ earlier in the story. When the narrator is exploring the inside of the prison, he describes the one of the smells as ‘decayed fungus.’ This is effective as the decaying is the plant dying and it foreshadows the fact that he will also be dying in the dungeon. Foreshadowing is used again with ‘a sullen plunge into water’, which gives horror as we can tell that this is going to be his fate. Sound then comes into play in his story, ‘loud echoes’ shows us the enormous size of the pit and the dungeon in general. It also comes into play as he ‘trembled at the sound’ of his own voice. This shows that the dungeon is normally extremely quiet, or that he is extremely scared to the point that even his own voice will scare him. Poe once again starts to describe the feeling of death, and how the narrator is starting to accept his fate. He does this by describing how he is ‘resolving there to perish rather than risk the terrors of the wells,’ this not only shows us that is has no problem with dying in there anymore, but it also shows us that the dungeon is absolutely terrifying if the narrator decides that he would rather die than venture through it anymore. This is also shown a little later as he describes his sleep as ‘a sleep like that of death’, showing that there is no escape and that even in sleep he still feels like death is upon him. One great use of description is the ‘painted figure of time’ that resides on the roof. This symbolism is showing us that the narrator’s time is up and he will soon die. He then goes on to describe that there is a ‘scythe’ with the painting of time. This adds to the fact that he will soon die as a scythe is commonly represented with the sign of death, as death is usually depicted as a skeleton, which the figures were described to have ‘skeleton forms’, with a black robe, which was also seen on the judges, and a scythe. This constant symbolism of death shows us greatly that the narrator has no other choice and he will die. The narrator also describes that he saw ‘enormous rats’ traversing the floors. The fact that they are enormous also tells us that there were probably people in the dungeons either alongside the narrator or before him, as for them to be big they must have eaten. This theory is slightly hinted upon as the narrator described their eyes as ‘ravenous’ which suggests that they have eaten human before and recognize him as food. The narrator realises this is but one more of the many things here that could kill him. While Poe referenced to Hades and the underworld earlier, he does something similar as he described the pit ‘typical of hell’. This description of the pit, referring it to the afterlife, once again adds to this looming fear of death that has been present throughout the entirety of the story. He also describes it as the ‘Ultima Thule of all their punishments’. This means that it is the worst possible thing that they could ever do to anybody, and the fact that the narrator just merely misses it is complete luck. But, as in a place like that there is no luck, it is obvious that it is going to be his fate in the end. The narrator seems to start losing his sanity as he starts ‘smiling at the glittering death’ of the pendulum coming towards him. But from his point of view he can see the pendulum coming towards his as a source of definite death, and not aimless wandering around the same corridor for an undetermined amount of time. Poe starts describing the pendulum through personification. He describes how its ‘acrid breath’ found its way into the narrators nose, and how, as it was descending, it was ‘hissing’. These things make you feel like the pendulum itself is alive and wants to kill the narrator. The narrator describes how he had a ‘frenzied pleasure’ in watching the pendulum come down. Poe reflects this in his writing, ‘Down — steadily down’, ‘Down — certainly and relentlessly down!’, ‘Down — still unceasingly — still inevitably down’. The repetition of ‘down’ is showing us how all the narrator can see is the gleaming of the pendulum coming ever so slightly towards him with every swing. The words used in describing the movement of the pendulum downwards are also effective. ‘Unceasingly’ and ‘inevitably’ tell us that the narrator is starting to get worried at the downward movement of the pendulum. Poe takes advantage of the fears of the readers in order to make the story full of horror. This was easily achieved when he writes that the narrator’s ‘every motion was being undoubtedly watched. This works greatly as it makes it more relatable to the reader as nearly everybody has had the feeling that they are being watched and knows how terrifying it feels. He describes being watched later on as well as he describes that ‘demon eyes’ were glaring upon him ‘in a thousand directions’. This adds to the readers fears and makes them uneasy while reading the rest of the story. Once again the narrator is starting to come to terms with the fact that he is going to die as even after escaping from the threat of the pendulum he says that he had ‘but escaped death in one form of agony, to be delivered unto worse than death in some other.’ This shows us that he has given up trying to escape as he knows that he will just be given an even worse punishment in the end. Then it is described when the thought of being crushed by the metal walls as ‘fiery destruction’ is in contrast to the description in the ‘coolness of the well’. These descriptions used make the option of the pit seem like the worse of two evils, like the coolness of the pit will relieve him from the fiery destruction of the enclosing walls. This shows how desperate the narrator is to survive. Many of the different techniques that Poe used to create horror so that the reader feels more involved in the story. He uses real places so we feel more drawn into the story. He uses great description of the surroundings so we feel more involved and he gives us the inner monologue of the character so we can feel more involved and it keeps us wanting more.

Human resourse practice in China Essay Example | Topics and Well Written Essays - 2000 words

Human resourse practice in China - Essay Example It also focuses on identifying the connections among these practices and highlighting the cultural dimensions of China. 1.1 Recruitment and selection In historical perspective, recruitment and selection of employees had little significance in China. They were following an iron rice bowl system, which has no policy of external labor market. All practices of HR such as recruiting, training, compensation and performance appraisal were handled by this one single system. However, after 1995, many countries started working on free labor market including China. This involved recruiting from all levels such as universities, colleges and schools, which is a common practice nowadays in China and many other developed countries. Presently, researches have noted that mostly in organizations 80% of employees get jobs on the basis of sources such as relatives, family, and friends etc. this is an illegal practice. This large amount of percentage should be reduced and other people should also be pref erred while recruiting and selection process. It have also been noted that most of the companies in China also prefer to transfer managers internally in order to fill the vacancies rather than hiring a person from outside (Child J, 2000). A selection criterion of China differs as compared to the other western countries. It focuses more on its cultural values i.e. guanxi, which means that there should be relationship among companies, employees and the government. Then only an organization leads to success. This culture focuses on the idea that employees should know that they are obliged to create a fit in their job and company should be able to retain the excess staff in case of new positions. This results to over employment in an organization. In recruiting and selection process companies should have more focus on skill and experience of a person rather than identifying that a person is Chinese or a foreigner, which is the common practice of Chinese companies. 1.2 Training and devel opment Education, training and development of employees lead to efficiency in performance and provide various benefits to the enterprise. In past it was identified that about 1.5% of workers in china had a suitable qualification, 27.3% studied till high school and 7.8% workers had technical knowledge. This shows that Chinese workers had lack of skills and were untrained. But after centralization of economy, China has concentrated more on the training and development of employees. Workers were provided internships and technical education in order to make them skilled persons. But a major problem identified in this program was that during training it resulted that most of the workers mismatched with their job, which lead to less work and productivity. Training programs were more concentrated on political issues in order to enhance the culture of China rather than technical education. This led to a drawback and indicates that the training system of China is mostly linked to theory rath er than practice. Workers are provided very narrow training aspect and they lack the ability to solve a problem in a practical way. Therefore, it can be said that the training and development process of China is passive and it does not produce creative and dynamic workers (Wei L & Lau C, 2005). Talented employees switch their jobs on two condition i.e. good salary or better carrier opportunities. But research indicated that in China employees are switching job because of better environment, compensation, knowledge, respectful position and carrier growth. In order to cope up with this situation Chinese management association introduced various courses on the education of management systems in many

Electrical Science Essay Example | Topics and Well Written Essays - 1000 words

Electrical Science - Essay Example From the current divider rule, the current flowing in a circuit divides itself according to the ratio of the resistance. For a two resistor circuit comprised of resistors R1 and R2 the current through R2 is given by; .. 16V-9I1+9I3-12I3=0 16-9I1-3I3=0 Loop 2 I312- {(I3- I2)5}-(I2 8)=0 12I3-5I3+5I2-8I2= 0 7I3-3I2= 0 Loop 3 {(I1-I3) 9}+ {(I3- I2) 5}-{(I1-I2) 6}=0 9I1-9I3+5I3-5I2-6I1+6I2=0 3I1- 4I3 + I2=0 Solving the three equations 16-9I1-3I3=0 (i) 7I3-3I2= 0 (ii) 3I1- 4I3 + I2=0 (iii) Solving the simultaneous equations From equation (ii) 7I3=3I2 (iv) Substituting equation (iv) to equation (iii) we get; 3I1- 4I3 + =0 3I1-1.67I3=0 (v) Solving equation 1 and (v) 16-9I1-3I3=0 3I3+9I1= 16 (vi) 3I1-1.67I3=0 (vii) Multiplying equation (Vii) by 3 we get 9I1-5I3=0 9I1+3I3=16 Subtracting the two equations to eliminate I1 we get -8I3=-16 I3= 2 Solving for I1 we get 9I1 +6=16 I1= Solving for I2 we get = Therefore the current through the 5 ohm resistor is given by IR2= I3- I2 IR2= 2-4.67 = -2.67 Meaning that the current flows in the opposite direction as shown in the figure below IR2= 2-4.67 = -2.67 QUESTION 3 Question 3.1 Theory For an AC circuit connected in series as shown below The impendence Z is given by: Z= R+ j X Z is the impedance R is the resistance X is the reactance The reactance of a circuit comprises of the capacitive reactance and the inductive reactance and is given by X=XL-XC Where X is the reactance XL is the inductive reactance given by XC is the capacitive reactance CalculationsCapacitive reactance= = = 15.92 Inductive reactance = = 47.1 H The magnitude of impedance = Z= 31.75 Question 3.1 b Theory For a RLC ac circuit with the XL being greater than XC , the current leads the voltage and the phasor diagram is as shown below; The phase angle is given by; The power factor for an ac circuit is given by Power factor = The power of a single phase circuit is given by