Saturday, August 31, 2019
Are You Sure It’s Fat Free
Introduction: Food industry misleads us by calculating the fat content in packaged food on ââ¬Å"weight basisâ⬠whereas the fat content (having to do more with the calorific value of a food item and not its weight) actually has to be calculated on the basis of the calorie value of the food item. So, the ââ¬Å"calorie basisâ⬠is what has to be applied to know how much fat our food items actually carry. Here are three interesting eye-openers!! Breakfast: Oatmeal (Single serving = 45 g) Calories in a single serving = 160 Fat content is 2 g 1 g of fat has 9 calories 2 g of fat = 2 * 9 = 18 calories. The fat content is (18/160) * 100 = 11. 25 % Protein content is 1. 8 g 1 g of protein has 4 calories 1. 8 g of protein = 1. 8 * 4 = 7. 2 calories The protein content is (7. 2/160) * 100 = 4. 5% Lunch: Raisin Bran Crunch (Single serving = 60 g) Calories in a single serving = 190 Fat content is 1 g 1 g of fat has 9 calories The fat content is (9/190) * 100 = 4. 74 % Protein content is 3 g 1 g of protein has 4 calories 3 g of protein = 3 * 4 = 12 calories The protein content is (12/190) * 100 = 6. 32% Dinner: Vanilla Yogurt (Single serving = 225 g) Calories in a single serving = 110 Fat content is 2 g g of fat has 9 calories 2 g of fat = 2 * 9 = 18 calories The fat content is (18/110) * 100 = 16. 36 % Protein content is 5 g 1 g of protein has 4 calories 5 g of protein = 5 * 4 = 20 calories The protein content is (20/110) * 100 = 18. 18% Now, see what the food industry calculations would have been â⬠¦ Breakfast: Oatmeal (Single serving = 45 g) Fat content is 2 g The fat content is (2 /45) * 100 = 4. 44 % Protein content is 1. 8 g The protein content is (1. 8/45) * 100 = 4% Lunch: Raisin Bran Crunch (Single serving = 60 g) Calories in a single serving = 190 Fat content is 1 g The fat content is (1/60) * 100 = 1. 7 % Protein content is 3 g The protein content is (3/60) * 100 = 5% Dinner: Vanilla Yogurt (Single serving = 225 g) Calories in a single serving = 110 Fat content is 2 g The fat content is (2/225) * 100 = 0. 89 % Protein content is 5 g The protein content is (5/225) * 100 = 2. 22% Conclusion: The above calculations speak for themselves. The actual fat/protein contents in packaged food stuffs are much more than what the food industry claims. This is misleading. The nutrition experts must enlighten the general public about this distorted information and help all towards better health.
Friday, August 30, 2019
An Analysis of A White Heron by Sarah Orne Jewett Essay
ââ¬Å"A White Heronâ⬠, written by Sarah Orne Jewett, depicts a young girl whose love great love for nature and animals meant her and her familyââ¬â¢s needs. Sylviaââ¬â¢s knowledge of birds including the white heron, she had to make a choice between saving the white heron and helping her family. Sylvia does both of these things because she is close to nature. Sylviaââ¬â¢s great understanding of the animals comes from her love for nature and wild creatures. Sylvia knows a lot about many different types of birds. So Sylvy knows all about birds, does she? ââ¬Ë The hunter exclaimed, as he looked at the little girl who sat, timid but extremely sleepy in the moonlight. The hunter finds out that Sylvia knows a lot about birds and that she may be able to help him find a white heron for his bird collection. Sylviaââ¬â¢s love for the outdoors is also very obvious when she says that she would have liked to have her home to be outside rather than in doors because of its beauty and peace. Sylvia said, this was a beautiful place to live in, and she never should wish to go home. It is obvious that Sylvia is happier living in nature, rather than in a humid house. She also likes to watch the animals in their natural environment. With Sylviaââ¬â¢s extraordinary knowledge of birds, Sylvia has a decision: either to help support her family or to save the white heron from the hunter. Sylvia has an idea where the white heron is, and may possibly be able to help the hunter find the bird for his collection. Sylvia knows that she would be awarded much-needed money for directing the hunter to the heron, but she decides that she cannot play any part in bringing about the birdââ¬â¢s death. The hunter eventually leaves Sylvia without his prize. Sylvia shows her love for nature when she does not sell the white heron for money. Sylvia went with the hunter to find the white heron and had found it. When Sylvia and the hunter find the white heron he offered her money for it but she refused. When she saw the heron Sylvia does not speak after all, and the hunterââ¬â¢s eyes are looking straight at Sylvia. He can make them rich with money; he has promised it, and they are poor now. This shows how much Sylvia loves the animals and how she would never want to harm any of them, not even for the chance to become rich and solve all of her familyââ¬â¢s problems. In Sarah Orne Jewettââ¬â¢s, Sylviaââ¬â¢s love for nature and animals goes beyond her concern for her and her familyââ¬â¢s needs. Saving the white heron was a choice that Sylvia to made proving that her love for nature was much stronger that her familyââ¬â¢s needs and her own.
Life Span Perspective Essay
The definition of a personââ¬â¢s lifespan is from the moment that they are conceived to the moment that they pass away. The development of this life is defined through the various stages in which that person develops. When a person is looking at the perspective of this lifespan development, they are trying to understand what changes during the development and why it happens. There have been many psychologists that have looked at this and developed many different theories about development, and you can see that there are many influences that help push these theories into reality. Definition of Lifespan Development A person and their lifespan start out when they are conceived and then grow and develop for nine months in the womb. During this time that person will develop into either a male or a female. Once they are born they will continue to experience changes and different developments while they age. There are different stages in their life that will show different changes within them. The study of how we understand how humans change over a lifetime is called the study of human development, (Berger, 2008). When looking at the development of a person, you can make a pattern out of it from one person to another, but there are cases that the development does not follow a set path. The most common stages of development are birth, infancy, adolescence, adult, elderly, (old age), and death. Lifespan Perspective Lifespan perspective has three different domains in looking at the development of a person. These domains are physical, cognitive, and social domains. Physical domain is looking into the aging and growth of the physical being, (Sigelman & Rider, 2009). The cognitive domain looks into the mind and examines memory, language, perception, and problem solving. The last domain looks at the personââ¬â¢s personality, emotions, and relationships. This study of the human development is one that will probably never end, since there are so many factors when looking at the development of a person. Theories There have been many different theories that go into this portion of psychology. With these theories, people need to examine what are actually in these theories before trying to understand what lifespan development actually is. Piaget Piagetââ¬â¢s theory on development puts a lot of emphasis on the development of thought process. His cognitive theory has been in the front of this study since the 1980s and has had many different versions formed from it, (Berger, 2008). He had figured out that since children are so curious that there are age related stages to the development of the mind. Piaget put these into four different stages. The stages are sensorimotor, preoperational, concrete operational, and formal operational. The sensorimotor stage is from birth to the age of two where the child uses their motor skills and different senses to try and understand the world around them. The preoperational stage is from the ages of two and six. This is where the child tries to use language to understand everything that is around them. The concrete operational stage happens from the ages of six and eleven. This is where the child starts to understand and use different logical operations to understand the world. The last sate happens from the age of twelve through adulthood. This is where they start to think with different hypothetical concepts and reason without having emotions interfere. Freud Sigmund Freud had a similar but different look on the stages of development. Freud believed that there were three stages of development and that all of them revolved around sexual pleasure. He thought that that infancy was an oral stage, early childhood was an anal stage, and that the years around the age of going to preschool was the phallic stage, (Berger, 2008). With this theory the interpretation of an adult would be a constant struggle in the personââ¬â¢s unconscious from childhood on up. Nature and Nurture There have been many debates over the influence of nature and nurture in this field. When looking at this field a person can see that there is help from both influences when shaping the development of a person. Nature is where genetics is passed down from one person to the next and nature is a personââ¬â¢s abilities and temperaments, (Guest, 2011). Everything that is around a person can affect their development, such as friends, schools, and religion. Each of these takes most effect when the child is in early development, which is one of the most crucial times for a person and their development. Conclusion The development of a person from life to death is the scientific study of lifespan development. This perspective can be seen in three different domains and five different stages of characteristics. There were many different theories on this subject, but Piaget thought there were four stages that happened in the mind while Freud thought there were three stages that was focused on sexuality.
Thursday, August 29, 2019
Labor Relations and Recruitment Know-How Coursework
Labor Relations and Recruitment Know-How - Coursework Example The design of the recruitment process must be attractive enough to encourage job seekers to apply, to be able to select the best-suited candidate for the job description (Meister, 2014). Before we dive deep into the selection and recruitment it is very much necessary for us to understand what selection is and what competencies are. The selection process is designed in such a way that it can help the interviewer to identify the right candidate and have the potential to benefit from the program and become the leaders of tomorrow. Today the selection process starts with the online application form, which helps in selecting the right candidate as per the qualification and experience. In the context of the essay, the selection is referred to as the selection interview, which is nothing but a process where a personnel selector observes a candidate through the behavior and attitude for the suitability of the post. It is the most necessary step in the recruitment process of any organization. The main skill that goes hand-in-hand with selection is to observe or assess the competencies of the candidate to judge the fitment of the position. Competencies are nothing but the ability to a job successfully yet efficiently. In todayââ¬â¢s corporate world competency is the main skillset that the recruiter would look into a candidate during the selection process. Modern-day employers give great importance to the competencies of the candidates that they are interviewing for the position. They use the competency frameworks as an essential vehicle to assess the potential future effects of the candidate and also help the interviewer to review capability, performance, and potential of the employee. Two types of competencies that the interviewer would like to see in a potential candidate are behavioral and technical competencies.Ã
Wednesday, August 28, 2019
Space Analysis Essay Example | Topics and Well Written Essays - 1750 words
Space Analysis - Essay Example Here, most of the people are unknown to each other and they are related on the basis of their category (Minton, 2012). The case study here is based on Sulzer-Areal in Winterthur, Switzerland. The main focus of the study is to understand how the free area meant for iron and steel factory complex has been converted into public space (King, 2011). The old industrial area of Sulzer-Areal (Fig 1) is located in the center of Winterthur, Switzerland. In the year 1834, it was first built by the Sulzer brothers and the area is spread over twenty hectares till Zurich road and railway. The industrial area reflects the golden days of mechanical engineering in Switzerland. In 1980, a law was passed to expel the heavy industries out of the main city area of Winterthur and from then on, lots of suggestion has been proposed for Sulzer-Areal. The place was much into a state of transition from 1990 and in 1992, the idea of complete demolition of the area was rejected. The owner of the space, Sulzer Immobilien AG group, proposed a very high budget and international project called the ââ¬ËMegalouââ¬â¢ for the complete restructuring of Sulzer-Areal (King, 2011). But due to recession, the entire project lost its luster and was left with no tenants and investors. The situation demanded a rethinking, as the operation of the space was not possible because of the huge investment required. So, it was decided to make some superficial changes in the existing buildings and convert it into a public space that will help to rebuild the area in the future. The industrial buildings were slowly transformed into districts. Now the area is a mix of educational institutes, residential complexes, workplaces and leisure. Thus, the area now has a whole new and exciting charm as a public space (King, 2011). The entire study of the Sulzer-Areal case study has been done by keeping in focus certain points that will help the reader understand how the entire
Tuesday, August 27, 2019
Operations Management Definition Essay Example | Topics and Well Written Essays - 2000 words
Operations Management Definition - Essay Example According to Westland (n.d., pp. 1), project is defined as to perform certain activities for the completion or execution of work which is planned to get delivered within a specific time. Projects have specific characteristics. For example, they are unique i.e. every project is different from the other. Another example is that there is certain amount of money in which they have to be completed in a specific time. Operations:According to Shim and Siegel (1999, pp.2), operations can be defined as the labor undertaken for making goods and services available. They have to be completed in time set by the customer and the manufacturer.Project and Operations ManagementAccording to Shim and Siegel (1999, pp.2), project and operations management is the management of all the processes or in other words, activities which are associated to the manufacturing of goods and services. According to Westland (n.d., pp.1), the project can be completed with the help of certain apparatus and dexterity. Wit h the help of talented people and good management project can be completed with success. With the help of dexterity, cleverness and skill the risks associated with in a project can be reduced. Experienced people are hired in management for this purpose. The tools or apparatus used to complete a project related to building a house may include pens, gauges, nails, wood, budgeting, CAD software and checklists etc. Methods or processes used for completing a project are divided in different and small tasks.
Monday, August 26, 2019
TEST EVALUATION Assignment Research Paper Example | Topics and Well Written Essays - 1000 words
TEST EVALUATION Assignment - Research Paper Example A language test is essential since it plays the role of generalizing what the person taking the test is capable of doing under some set conditions. As such, such a test helps in evaluating what the person taking the test can do even when they are not under conditions of test taking. Purpose of the test The test aims at assessing the language skills of English speakers in comparison with the language skills on non-speakers of English language. The purpose of carrying out this language test is to assess the achievement that students have made so far in the course. As such, the test aims at evaluating the extent to which students have achieved the course objectives. Moreover, the test will be used in determining which students will pass on to the next level. The student performance in the test will act as the basis for determining the students who will go to the next grade, as well as those students who will not qualify for admission in the next grade. Students will be graded based on t he marks and the grade they achieve in the test. After the grading, those will have scored marks equivalent to the required admission marks will be allowed to continue to the next level while those who will not have achieved will either have to repeat the test, or remain in their current level. Student performance will also be ranked according to how the students have scored. Description of the test The test will make an assessment of how students score when compared to other students who take a similar test. The test will also be administered as per the acceptable procedures, as well as with regard to the rules of the education section and the institution. The outcome/result of the test will be given in terms of percentage and ranking of the students. Students will be ranked from the highest scoring at the top and the lowest scoring at the bottom. Different tests will be provided for speakers of the English language and those who speak English as a second language. The purpose of d oing so is to ensure that both categories of students can be favoured by the test. While administering the test, various questions will be provided in order to ensure that students have a variety from which they can choose. The language test will be a written test where students will have an opportunity to fill in the right answers, in the exam paper. There will be questions where students can choose from multiple answers by selecting the best option. In addition, the test will encompass reading a comprehension and answering some questions based on what students understand from the reading. The test will also include some grammar questions, which will test the ability of students in grammar. Writing skills of the students will also be tested through a composition. Students will be expected to write a composition that will test their ability to communicate in writing (Richard-Amato, 2003). Scoring of test The test scores will be based on the percentage scored by the students in the r espective scores. English speakers who will score a high percentage in their tests will get high marks. Likewise, English learners who will score high marks in the test provided will be graded with high marks. The best students, native speakers or ones having English is their second language, will score an
Sunday, August 25, 2019
Concert Report of Gentleman's Rule Essay Example | Topics and Well Written Essays - 1250 words
Concert Report of Gentleman's Rule - Essay Example Because the program was organized in the evening, lighting was an important and integral part. There was sufficient lighting to make everything visible. The lighting system was also used as a decorative system as there were combination of different forms and types of lights in different switches and rhythms so synchronize with the music that was being done. Again, because there was a conscious effort to ensuring that fans and all other stakeholders within the premises of the theatre did not have problem with visuals, there was create visibility with the lighting system that was provided. It was the stage itself that did not have much light due to technical reasons such as concentrating the light only on people of whom the technical themes wanted attention to go to at a point in time. On the issue of ease of movement by patrons of the concert, particularly the fans, it would be said that even though the Royal George Theatre is a very sizeable place, for some reasons, it could not guar antee patrons of the program much movement. The problem was not due to that natural size of the auditorium but due to the fact that the songs that were done where danceable tunes, of which most fans wanted more and more space to shake themselves off with the music. Accessibility for people with disability would however be approached with a different tone noting that so much room was made for these people to have accessibility. There was actually a whole floor on the storey row that was preserved for people with disability. This was a step in the right direction as this floor was well fitted with accessible gadgets for the people with disability. Sound levels were perfect from a technical view point as organizers and the sound theme ensured that there was perfect harmony in the production and release of sound. There was virtually no instrument in the room, whose sound level was swallowed by the other and this contributed to the harmony in sound production and sound levels (Graves et al, 2002). But as expected, the voices of the fans swallowed the sound from the stage on some occasions, especially in cases where well known tunes were being played. In sum, it would be said that the venue of the concert was very comfortable in terms of sound and lighting but not so much comfortable for people who really were bent on using their dancing shows to the fullest. This is because the concert was organized to take a more diplomatic form whereby the fans would be passive rather than active participants. Performers The main performers for the show were the Gentlemanââ¬â¢s Rule. These are a group of young and talented ten (10) male singers and composers (Gardner, 2006). The area of specialization of these singers is mainly acapella. On stage that night, the clothing of all 10 was something that deserves commendation. This is because the clothing was designed to give unique identities to these performers. For example they were dressed according to their vocal roles in the group with the led singer having what has come to be known as the Michael Jackson hand band. Light skinned clothes that would not make them produce so much sweat. The shirts were short sleeved to allow for aeration and the trousers were certainly made of cotton to absorb liquid well. The actions performed by the singers on stage often changed with the mode of the song being delivered. But the organization of the songs was done so well that
Saturday, August 24, 2019
Neo-Malthusian Population Control Essay Example | Topics and Well Written Essays - 500 words
Neo-Malthusian Population Control - Essay Example Celibacy, or sexual abstinence, struck Malthus as potentially an effective solution for solving the problem he himself diagnosed with human societies (Gilbert). As we should in contemporary liberal societies, most will find Malthus' conclusions unsettling, not only because of what they describe as in our future, but because of what his findings might justify in terms of government control. The kinds of methods that Neo-Malthusians suggest are necessary to protect the Malthusian catastrophe are undesirable at best and totalitarian at worst. Given this background, there are numerous theorists, from many different fields, who oppose the arguments of Neo-Malthusians by criticizing Thomas Malthus himself. One criticism is apparent in economist David D. Friedman, who concludes that the prospect of parents having "too many" children is unlikely. His first argument is that although parents may not always be the most rational in deciding to have a child, it is even more difficult for a government, which is the only alternative from having parents decide. Parents are, despite common concerns, rational decision-makers. As the Malthusian catastrophe nears, reasons Friedman, economic effects are felt on fertility. Friedman says, "Consider also the effect of economic conditions on fertility. At the bottom of a depression, with short term income low and long-term prospects-for both parents and children-bleak, birth rates should fall. They do" (Freidman). Julian
Friday, August 23, 2019
Generation Y and leadership Assignment Example | Topics and Well Written Essays - 1000 words
Generation Y and leadership - Assignment Example The challenges are also due to the fact that the earlier generation, the ââ¬Ëxââ¬â¢ers are also in the office floor making it a management conundrum. The challenge of managing this mutigenerational workforce would be considered quaint when one considers the natural progression this situation leads to be an era where millennials will be called to lead other millennials. Aliases for this generation are not in short supply. They could also be referred to as the ââ¬Å"entitlement kidsâ⬠for the strong sense of expectation they posses. ââ¬Å"â⬠¦If there is one overriding perception of the millennial generation, it's that these young people have great -- and sometimes outlandish ââ¬â expectationsâ⬠(Aslop, 2008). What would leadership look when ââ¬Å"entitlement kidsâ⬠lead ââ¬Å"entitlement kidsâ⬠? Would it be a positive development or similar to the new tribal warfare we see in the world, outside the corporate curtain wall? One of the best ways to un derstand the millennials is to contrast them with the prior generation ââ¬Ëxââ¬â¢. Those born in the 1960ââ¬â¢s and 1970ââ¬â¢s up to 1982 are referred to as the generation ââ¬Ëxââ¬â¢. They are refereed to as a generation that ââ¬Å"â⬠¦ has always signified a group of young people, seemingly without identity, who face an uncertain, ill-defined (and perhaps hostile) future.â⬠(Ulrich, 2003). ... Sociologists will point to this as a definitive belief in leadership principles by believing in being led. The underlying reasons for this according to Hershatter derived from groundbreaking research done in ââ¬ËThe History of America's Future 1584 to 2069ââ¬â¢ (Strauss et al. 1992) is that ââ¬Å"A lot of the things that people perceived as problematic outcomes as the result of how Gen ââ¬ËXââ¬â¢ers were raised ââ¬â latch key kids, lots of autonomy, lots of freedom, not a lot of attention to their care and well being ââ¬â was completely reversed with the Millennialsâ⬠. They were raised with positive reinforcement. Confident in them selves it was insufficient for them to know what had to be done? Brought up with Pokemon, Star Wars and The Lord of The Rings film trilogy they needed to know why it had to be done? Cell phones, Mp3ââ¬â¢s, and game portals were their toys making them addicted to technology. Fostered by social media and keypad savvy they have ma naged to be more connected with their parents than generations before them as they were in control of that connectivity. Trust has been inbred them. Gaining knowledge is less of a priority than knowing the sources of knowledge. They have had to learn to trust sources of knowledge. Millennials have turned the perception that generation-to-generation youth culture self degrades. They are changing corporate culture by their liking for immediate feedback, the hunger for positive reinforcement, and the sensitivity to relationships. The above-mentioned factors will cause corporate structures to be flatter to facilitate the required speed of communication and generation ââ¬ËYââ¬â¢ has the
Thursday, August 22, 2019
Forces of magnetism accreditation Essay Example | Topics and Well Written Essays - 250 words
Forces of magnetism accreditation - Essay Example The Magnet Recognition Program was built on five components that are used as the standard for recognizing excellent nursing care in the health industry. The five components are 1. transformational leadership, 2. structural empowerment, 3. exemplary professional practice, 4. new knowledge, innovation, and improvements, and empirical quality results. These five areas are used to recognize quality care, nursing excellence, and innovations in professional nursing. The Joint Commission is an accreditation that is aimed at ââ¬Å"continuously improving health care for the public, in collaboration with other stakeholders, by evaluating health care organizations and aspiring them to excel in providing safe and effective care of the highest quality and value,â⬠(http://en.wikipedia.org/Joint_Commission, 2011). The Joint Commission seeks to continuously improve the safety and quality of care provided to the public through the provision of health care accreditation and related services that support performance improvement in health care organizations. The main difference between the Magnet Recognition Program and the Joint Commission is that the Joint Commission is more of an accreditation process that requires the health professional goes through a strenuous survey every 3 years. The Magnet Recognition Program is viewed more as a recognition program to award hard-working professionals in the nursing
Border and Coastal Security (Criminal Justice) Essay Example for Free
Border and Coastal Security (Criminal Justice) Essay `Hardened Border Paradoxââ¬â¢ and `Open Border Paradox. The `Hardened Border Paradoxââ¬â¢ refers to the situation when tougher border controls fail to achieve their objective ââ¬â stop illegal migrants and smuggling. Instead, it is argued, these tougher controls create an atmosphere ripe for spread of criminal activity. Jeane J. Kirkpatrick, Senior Fellow in National Security Studies at the Council on Foreign Relations, in his written testimony before a hearing of the Committee on Foreign Relations, United States Senate noted that ââ¬Å"draconian measures to police the border invariably provide incentives for informal arrangements and criminal conspiracies to overcome cross-border barriers to commerce and labor movementsâ⬠. There appears an industry for helping illegal migrants, whereas the cooperation of law enforcement bodies is reduced when one side unilaterally pursues strict policies. The border becomes more ââ¬Å"chaoticâ⬠, and tough regulation ââ¬Å"creates a demand for those who are in the business of arranging the illegal crossingsâ⬠(Kirkpatrick, 2004). This paradox can be resolved by combating illegal groupings and promoting cooperation at the border between authorities on both sides. The ââ¬ËOpen Border Paradoxââ¬â¢ includes the need to combat the movement of terrorists and smugglers across open borders without damaging the free flow of goods and services that benefits the economies of both nations. This paradox exists, for example, on the US-Canadian border where the flow of goods and services is in dependence on anti-terrorist measures. To overcome this paradox, authorities from both sides can create special projects targeting terrorists without jeopardizing trade flows. Kirkpatrick in his testimony points out the example of a bi-national ââ¬Å"Integrated Border Enforcement Team (IBET)â⬠created on the US-Canadian border to overcome smuggling in 1996. Is it cost effective to spend millions and millions of dollars in an effort to stop a handfull of people` who are bound to terrorize the United States? Counteracting the bunch of people bound to terrorize the United States is worth millions of dollars and perhaps even more. This number is commensurate with the devastating impact September 11th and other events had on the development of the American economy and national security. Efforts to combat terrorism within the United States are also costly. The negative effect of terrorist activities on the economic activities of Americans can hardly be overrated. Terrorism poses a risk to the United States and all of its business. Foreign partners contemplating a deal with US companies will be more reluctant to do so if they perceive the state as being in continuous danger of an external attack. This means loss in indirect costs from dangers to the national security, with the effect similar to that political instability in developing nations has on their ability to attract and retain direct foreign investment. The costs of failing to keep the terrorists out are therefore serious issues that have to be addressed in order to prevent the possible danger to the economy. In this way, these efforts are similar to risk management in business. The risk averted may never materialize, and all the costs seem to have sunk in vain; however, if the risk did materialize, the impact on business would have been much greater. Speaking of the need to avert a terrorist attack through anti-terrorism campaigns, one need not forget that it is not only economic prosperity that is at stake. The negative impact on the quality of lives of Americans from September 11th attacks cannot be measured in dollars alone, for here one must factor in the pain, the grief, and the fear that affected even those who only saw the attacks on TV. The government has to deliver public goods to the people, and national security is one of them. Therefore, spending large sums on anti-terrorist measures is a sound idea as long as helps to prevent the terrorists effectively from getting into the country and perpetrating their crimes.
Wednesday, August 21, 2019
Population Changes in Japan
Population Changes in Japan Mustafa Ameen Introduction Population in a country is a source of vitality, and it is involved in a variety of costs to maintain a reasonable standard of living. Particularly for resource-poor Island nation like Japan, which has a population of very large or excessively small is a serious problem. Size is not the only issue; structure of the population is also an important factor. For example, it can be severe imbalances between the sexes threaten the stability of marriage and the family in society monogamous. If the number of senior citizens is large compared with the working-age population, the latter bears a heavy burden to support, and possibly the collapse of the pension system. Issues such as these cannot be ignored by anyone who wishes to understand the political choices and social problems facing Japan or to consider the prospects for the countrys future in the near term. This case study looks at the country with a declining and aging population. Japan has a population of about 127 million people, the tenth largest in the world, but it is unusual because the population is decreasing. Only a small number of other countries (such as Italy, Germany and Russia) have low population, but none is expected to fall as fast as the population of Japan. The mortality rates also declined dramatically, and the result was that the average length of life has increased by about 30 years over the past half-century. Average life expectancy is now 82 for women and 76 for men. The percentage of people aged 65 years or more than 14% of the population in 1994, and by 2020 is expected to be the number one in the world through this procedure Japan. Japan has nearly 27 million people, the elderly and the largest proportion of over- 65S from any country (21 %, see Figure 1). It also has a smaller proportion of the population under the age of 15 (13.6 %), which will lead to great difficulties for Japan in the future, as the number of employees will not be able to support the population. These changes occur more quickly in Japan than in Europe or the United States, and can seriously affect the economy of one of the richest countries in the world. Rate of Change of population in Japan Until recently, in the 1950s, and Japan is facing a chronic problem too many mouths to feed. In the Edo period (1600-1868) held by the population and the media as a desperate infanticide and abandonment of the elderly. Japans population grew rapidly as it industrialized in the early twentieth century, an increase from 60 million in 1926 up to 100 million in 1967. Since the 1980s, however, has slowed population growth, after peaking in 2005, is now in decline. It is estimated that the population will fall to 121 million by 2025 and 100 million by 2050. What is more alarming is that the proportion of older persons will increase, and by 2030 it is estimated that one person in three will be over 65. This puts great pressure on the country. The course was a contraceptive on the main key for the decline in fertility. And practiced widely in Japan birth control; condom use on a large scale private. And the availability of abortions also undoubtedly helped unwanted pregnancy reduction. Abortion was legalized in Japan in 1948. The law allows for the termination of pregnancy is when persistence poses a serious threat to the physical health of the mothers or for economic reasons. Extended explanation of these causes physical or economic condition is the basis for most abortions. The changing demographics in the population pyramids are shown in Figure 1. Pyramid for 1950 is cone-shaped, with a wide base. However, as the decreased birth and death rates, has changed the form of a large pyramid and will continue to do so. In the pyramid for 2005 is replaced by a broad base of essential part before the bulging; in 2050, there is the upper part of a much larger, which indicates the predominance of the ability of the elderly. Vigorous pace of change in demographics cannot be reversed or even slowed down significantly. Avoid economic stagnation and social and maintain inter-generational equity may be the biggest challenges facing Japan, which grow gray by the year. Figure 1 Japanââ¬â¢s changing population [3] Declining of the population in Japan The main reason for the decline in numbers is that Japanese women are not having enough children. Many Japanese who choose to marry at a later age than in April 2007, on average, between 28 and 30 years old, and this means that they have children later, or not at all. Many women decide to also not to marry, choose to study or pursue a career instead of having children. Japanese culture in the upbringing of children and usually left for the mothers. Very few men take any leave to care for children ( although they are entitled to do so ) , and opinion polls reveal that more than 40 % of parents did not change a nappy or put children to sleep. This fact , and the lack of child-care facilities , which means that the small number of women returning to work after having children , and many women feel and others will have to give up a lot in order to have a family . There are also strong economic reasons why people choose not to have children or to have one or two only. Being pregnant is expensive in Japan, and pregnancy is not covered by health insurance. This means that women should pay for their own medical care during pregnancy, including hospital tests. After birth, and is provided free health care for all children up to the age of three years (or five in some areas). He added that this is the huge costs of education and higher education, and many families decide they can only afford to have one or two children at most. Child Benefit paid by the government to the families of low and barely enough to pay for diapers , not to mention other costs associated with having a family . The effect of population declination in Japan There are two types of special problems that will result from population decline. The first is the cost of caring for people as they get older, and the second is the lack of younger workers to fill the jobs. And more and more people reach retirement age, the country will need to find more money for their pensions. This means that already raising the retirement age and gets more contributions from both employers and employees, and theyll have to revisit again in the future. Already there is evidence of older workers in the shops, at airports, in the Tokyo subway or taxi driving. In the future there will be great pressure on the country as it tries to provide adequate health care to support the elderly. This inevitably means larger tax bills for people who work. The second problem and the most pressing is that companies find it difficult to hire new employees, and this will become more difficult in the future. If you cannot fill the jobs, then productivity will fall, and so the country will prosper. Box 1 World population over 65 Japan Figure 2 Map showing the worldwide distribution of people over 65 years old Figure 3 World map showing land areas The map in Figure 2 is an equal area cartogram in which each country has been sized according to the percentage of its population that is over 65. The colors used group the territories into 12 geographical regions, and allow it to be compared with other maps in the World mapper series (see web link at end of article). Figure 3 is a standard world map based on land areas and using the same colors, for comparison. In 2002, 7% of the worldââ¬â¢s population was over 65. The map shows Japan, in purple, with a large elderly population at 21%. This contrasts with Saudi Arabia, where only 1% of the population is over 65. China has the largest elderly population in terms of numbers (92 million), but this is only 7% of the total Chinese population. Africa is home to only 6% of the worldââ¬â¢s population aged over 65. Conclusion and future work In the long run, it is hoped that Japanese women can be persuaded to have more children, but social attitudes and trends is difficult for the government to address. Consideration is being given in the reforms, such as increasing the amount of the subsidy of the child, and the provision of tax allowances for families, and make child care more accessible, in the hope that this would lead to an increase in birth rates. However, many people do not think that an increase in birth rates that were not there are also social and cultural changes. In the short term, Japan should solve the labor shortage there. One way is clear to encourage more immigration. Currently there are only about 2 million foreigners live in Japan, and this is not anywhere near enough. There is a need for workers in the full range of functions, including dirty or dangerous jobs that Japanese people do not want to do ( such as cleaning or working in residential homes ) and functions that people need to be highly skilled and trained . Shortage in the engineering and computer programming Japan is well known. Some estimates say that Japan will need at least 500,000 immigrants each year over the next 40 years in order to keep pace. Difficulty with this, however, is that the Japanese as a nation are opposed to immigration. People born Japanese make up 98.5 % of the population, and it is difficult for foreigners to be accepted or to become citizens of Japan. In comparison with Switzerland this rate is 18% of the foreign workforce. Although the Japanese government is considering how to encourage more migrant workers, it also wants to impose controls on immigration. It would be difficult to change the views of the majority of the Japanese people, who fear that immigration threatens to what they see as the purity of Japanese culture. There is no doubt that Japans population in decline, and despite the fact that the government is aware of this problem, and many feel they have been slow to respond. It is unlikely that the elderly population is smaller and increasingly will be able to maintain the productivity and prosperity of the country, unless steps are taken to address the issues of population decline. Figure 3 current population pyramid for japan [5] References World mapper: www.sasi.group.shef.ac.uk/worldmapper/ wikipedia.org/wiki/Aging of Japan http://www.ithaca.edu/gerontology/schools/pdf/Aging%20in%20Japan.pdf http://www.worldmapper.org/articles/WW_Japan_pop.pdf http://www.indexmundi.com/japan/age_structure.html 1
Tuesday, August 20, 2019
Energy Systems Assignment Task
Energy Systems Assignment Task For example: goalie position is in the aerobic glycolysis (breakdown of glucose) system. They are treading water in one position until someone takes a shot. When someone takes a shot, the goalie has to react fast and powerful to get maximum power. Utility players are going as fast as possible for the entire game. Center forward plays at a med-high speed, generally in the anaerobic system throughout the entire game. 3. ATP-PC System ATP is a complex chemical compound stored in the mitochondria. The compound consists of a large molecule called adenosine (A) and three smaller molecules called phosphates (P). Each of the phosphates is held together by high energy bonds. Phosphate P P P ADENOSINE High Energy Bonds Energy When the last phosphate has detached, energy stored in bonds between the phosphates becomes available and this is transferred to the cells. In the Muscle cells, the energy from ATP allows the fibres to contract and make movement possible. The heat and energy are released as the bond between the two end phosphates breaks Adenosine Diphosphate High Energy Bonds P P ADENOSINE This is now referred to as ADP (adenosine diphosphate) because it doesnt have all three phosphates attached. You can gain the phosphate back by resting. When youre resting, creatine phosphate steps in and resynthesise, that is, reattaching the phosphate and restoring the ATP which has been party destroyed. Creatine and Phosphate are also held together by high energy bonds. High energy bonds C = P Creatine Phosphate The bond between creatine and phosphate breaks down, releasing energy. C P Energy The energy released drives the free phosphate (Pi) back to join ATP. P ADENOSINE P Pi ENERGY ATP is brought back to its normal form and the cycle is continued until CP/PC supplies are exhausted. Phosphate High Energy Bonds P P P ADENOSINE The ATP-PC/CP system is a predominant energy system when there is a swim off at the start of the game, when there is a fight for the ball, when there is high intensity sprinting for the ball against your opponent and when goalie is reaching for the ball to save. This system has no by products and last for around 10 seconds. 4. Lactic Acid System When you have gone through your ATP-PC system completely (CP is exhausted), you move into the next best system, anaerobic glycolysis/lactic acid. This system last for around 2min 90sec but it depends on the intensity of the workout. Lactic acid/anaerobic glycolysis system produces energy for high intensity activities to medium intensity activities. When youre working out in the anaerobic glycolysis system, the lactic acid builds up in your muscles because oxygen is not available. This causes a burning sensation, shortness in breath and fatigue. The lactic acid uses glycogen to produce energy. An example of lactic acid in water polo is when youre in defence, youre chasing the attacker for a time longer than 10 seconds, and hence youre in the anaerobic glycolysis system. This systems by product is lactic acid and the main fuel is carbohydrates. An advantage from this system is that it is fast and good for burning carbohydrates. A disadvantage from this system is that is only last for 10 seconds. This system is generally used in team sports. 5. Aerobic Glycolysis Workouts that last for a period of 3 minutes to 2 hours are in the aerobic system. This system is oxygen required and is used generally for slow egg beater/treading water or defence (water polo). There are 3 main fuels; the best is carbohydrates, then fats, then protein. The by products are sweat/Hà ²o and Coà ². This system last from 3 minutes to 2 hours. This is an efficient system particularly for its long time frame and consistent speed. A disadvantage from this system is that it is at medium-low intensity. This system creates the highest amount of energy of the three, although it works at the lowest intensity. At the start of a workout, oxygen cannot reach the muscles until the next couple of minutes so you have to rely on the anaerobic systems for that short amount of time. The aerobic system is broken down into three sections: Glycolysis Krebs cycle/citric acid cycle Electron Transport Chain (ETC) Glycolysis Glycolysis is the breakdown of carbohydrates in the form of glycogen of glucose into pyruvic acid. The Krebs Cycle The Krebs cycle is the second phase in the process of aerobic metabolism. Pyruvic acid that was produced in the stage of glycolysis enters the mitochondria and is instantly converted to acetyl coenzyme which combines with oxaloacetic acid that forms citric acid. Other chemical reactions occur to make enough energy to resynthesise 2 ATP molecules. Other chemical reactions occur to resynthesise 2 ATP molecules. The by-products of this include CO2 (carbon dioxide), H (Hydrogen) this process is called a cycle because the the starting product is oxaloacetic acid is also the finishing product. Electron Transport Chain (ETC) The hydrogen from the krebs cycle is transported into the inner membranes of the mitochondria where it is split into a electron and a proton. The electrons are then put through a series of redox reactions. This releases quite a lot of energy and can resynthesise ATP. 6. Centre forward Centre forward is one of the hardest positions to be in. It takes up a lot of energy to play in. Centre forward sits in the opponents goals and wrestles for the ball until they get the ball and then sprints down to their goal to get in a good position to shoot. The predominant system theyre in is Lactic acid/anaerobic glycolysis. They do not get a long time to recover from this so sometimes they slip into aerobic glycolysis/oxygen system. When theyre sprinting, theyre at their full potential, so theyre using what is left of their energy, therefore they are in their ATP system. ATP Lactic Acid Oxygen 10% 60% 30% 7. Lactic Acid Build Up The percentage of lactic acid is reasonably high (60%) during a centre forwards game. This may bring them down so theyre in the oxygen system for the other percentage of time. The build-up of lactic acid is bringing down their potential to play at their best. To be able to play more, they need to have a recovery. Theyre in recovery time when theyre waiting to tackle for the ball. This is the only time they basically get to recover. Oxygen is the key to getting rid of lactic acid. You need a minute to get enough into you to recover.
Monday, August 19, 2019
Why is the Holocaust Still Relevant Today in Wiesels Night Essay
The Holocaust is over and has been for about sixty years, so why are we still talking about it? Why is it still relevant in our world today? The world should have learned from its mistakes, but the sad part is that we did not. No, Hitler is no longer killing millions of innocent men, women, and children, but we are still just still just as cruel only in different ways. Night is Elie Wieselââ¬â¢s factual account of his experiences in the holocaust. He brings us to a world in which not many people want to go. He tells us the true story of what really happened in Nazi concentration camps. Elie Wiesel, a holocaust survivor chooses to tell his story and begins to teach an entire generation the dangers of ignorance and hatred. Just by telling his story, just by writing it down, Wiesel is helping to educate people about what atrocities happened in the concentration camps. It tells us about how he was stripped down of his human rights. ââ¬Å"A7713?ââ¬â¢ ââ¬ËThatââ¬â¢s meââ¬â¢Ã¢â¬ (51 Wiesel). Wiesel talks about how he was degraded as a human being. He is not even considered a person anymore. He is dehumanized and reduced to little more than a number. An example of the harshness is the selections, where he saw people who slept beside him the night before, get sentenced to death. He makes it clear that just because you passed an examination, doesnââ¬â¢t mean youââ¬â¢re safe. You might have been lucky this time but there will be a next time and they can just as easily give you death. He is basically saying that if you want to survive, then you had to prove yourself strong and healthy, but basically it was all on luck. This teaches us how cruel the Nazis were to the people in the concentration camps. Every selection would be dreadful and you had no way of knowing wheth... ...spoke about the concentration camps while they were going on, then that could have made the difference. All you really need is one person to start and others will follow. There was a reason why Wiesel made it out of the camps, and millions of others did not. He made a difference. He educated so many people of the pains of the Holocaust. Since we now know about it, we should not be ignorant and pretend that there is no other problems in our world, because there is. Now that we know this and we know what has happened in the past, we should do everything we can to prevent this from happening in the future. We determine the future, we can either ignore the problems of others including in other countries and the same thing might happen to us, or we can choose to do something about it and try to eliminate hatred and make sure that no one will have to experience it again.
Sunday, August 18, 2019
Escaping the Responsibility in Society :: Essays Papers
Escaping the Responsibility in Society James Joyce wrote a collection of short stories titled Dubliners. Joyce wrote these stories in the nineteen hundreds to show how people often felt during the hard time after the Famine. The characters escape from their own responsibilities in society. James Joyce uses the theme of escape throughout three stories in Dubliners, ââ¬Å"An Encounter,â⬠ââ¬Å"Eveline,â⬠and ââ¬Å"The Dead.â⬠In ââ¬Å"An Encounter,â⬠the boys escape school but have a responsibility to attend that day. As well Eveline feels that she has to escape Dublin but believes she has a duty to keep. ââ¬Å"The Dead,â⬠Gabriel escapes his responsibility to be there for his wife Gretta, when she is in a time of need. However, in these stories, the characters escape their responsibility. In all of the short stories, each story shows the characters escaping society with their responsibilities through their own type of work. In each story, characters strive to escape the responsibility of work or duty. For example, in ââ¬Å"An Encounter,â⬠Leo Dillon and a child name Mahony ââ¬Å"planned a dayââ¬â¢s michingâ⬠(13). This shows how they plan on getting away from the society of Dublin and escaping school. They have a responsibility to attend school that day, however, with them not being there they have to consider the fact of getting caught; there are choices and consequences in life. There responsibility is to be present at school, however, they escape society and have to deal with the consequences. Another way that the boys escape society by way of their responsibilities is when they read comic books in class. The teacher asks, ââ¬Å"Is this what you read instead of studying your Roman History? [...] Iââ¬â¢m surprised at boys like y ou, educated, reading such stuffâ⬠(12). They are escaping again from society, their responsibilities of school work and, the standards of expectations from their teacher. They have no desire to listen to what is going on in class but rather try to escape the society through reading their comic books. However, this escaping through responsibilities is connected to the story of ââ¬Å"Eveline.â⬠Eveline has made a promise to her mother and does not know if she can keep it because of her wanting to get away from society and move to Buenos Ayes with Frank.
Saturday, August 17, 2019
Ice Cream Essay
According to market research conductedin 1996, 80% of Filipino consumers bought on impulse (they bought only upon passing an ice cream shop or scooping station, but without an intention to buy first); 98% ate ice cream was an afternoon snack. Furthermore, studies showed that per capita consumption of ice cream was less than a forth of a gallon per person per year. In 1992, it stood at 0. 23 gallons per person and declined to 0. 20 in 1993. On average, domestic ice cream market was 13. 8 million gallons from 1991-1993, worth estimated p 2. 5-3 billion per annum. Bulk ice cream comprised 86% of the industry sales while the rest was accounted for by frozen novelties. Main competitors in this include San Miguel Corporationââ¬â¢s (SMC) Magnolia and RFMââ¬â¢s Selecta. Magnolia Other trailing competitors are Universal Robina Corporationââ¬â¢s (URC) Presto, Arce Dairy Ice Cream, and Pure foodââ¬â¢s Coney Island, as well as foreign brands like Baskin-Robbins ,Dreyerââ¬â¢s and Haagen-Dazs. Magnolia ââ¬â The pioneer ice cream brand in terms of flavour, quality control, variety, technology and distribution produced by the merger of SMC and Nestle. It introduced the Flavor of the Month series that provided a huge variety of ice cream flavours to the consumer, with projected volumes of FoM ice cream sold reaching over 28 million gallons. It pioneered the introduction of tropical fruit flavours. It was the first to achieve International Standards Organization quality standards, and is the only Filipino ice cream brand that has expanded overseas. Magnolia is poised as the main competitor, as it aims to be at the forefront of the dairy industry. With increasing competition, MNC intends to make its products available in neighborhood stores and major outlets; introduce a feedback mechanism that will help the corporation monitor the market; and employ new approaches to selling. Currently, magnolia is the preferred choice of many five star hotels, fine dining restaurants, sports and country clubs and food chains.Presto ââ¬â this brand claims value for money, as part of the corporate philosophy of the Gokongweis, owners of JG summit corp. hich URC is part of, which is to make available value-for-money items for all its consumer-branded products, and as such has positioned its prices lower than Magnolia & Selecta. Presto excels in the frozen novelties market, as was demonstrated in their introduction of Tivoli bars, the first ice cream bar in the Philippines, a phenomenal success that had competitors challenge it with their own versions of ice cream bars. Presto currently holding the number three position, is determined to fur ther widen its market share and catch up with the giants. Thus, the company is eyeing the possibility of plant capacity expansion and wider distribution network. It is also determined to enhance its advertising campaigns and be very active in the communication field. Arce Dairy ââ¬â This ice cream brand was started in January 1995 and immediately got hold of a 5% market share. Its trademark was the use of carabao milk as base, comfortably within the 5-16% fat content requirement to be called ice cream because carabao milk contains considerably more fat than cow milk (9. 65% as opposed to 4. 16%). Only the expensive ice cream (super deluxe and super special) of Arce contain carabao milk, and are priced at higher than the rates of the competition, showing that Arceââ¬â¢s main strength is its appeal to the AB market where its products cost P3-5 more than its competitorsââ¬â¢ products, and as its regular ice cream products are priced lower than its competitors by P3-5 which indicates its attempt to appeal to the CD marketââ¬â¢s tendency to want every peso to count. Coney Island ââ¬â 1976 saw the entry of Coney Island in the local ice cream market. It introduced a new standard of creaminess thanks to its productsââ¬â¢ high milk fat content, setting a standard for flavour richness back then. Purefoods acquired it in 1991 and increased its production capacity without having neglected the improvement of its quality. In line with Pure Foodââ¬â¢s rule of following the highest international standards, Coney Island tried to implement the zero-vegetable fat and at least 10 percent milk fat standard of US ice cream. It used high quality ingredients like Callebaut chocolate from Belgium for its top-of-the-line products such as the Premium Bar, Pure and Simple and Bugs Bunny Bar. It repositioned itself in the market in 1995 to improve local competitiveness. It marketed its products as ââ¬Å"Not Just Ordinary Ice Creamâ⬠, supported by new flavours and packaging. Coney Island revised its product classification, and began categorizing its bulk ice cream as simply creamy, fruit and nuts, and cakes and pastries instead of the traditional premium and super premium. This move was inspired by a study that showed that consumers buy ice cream on the basis of flavour concepts. Foreign Brands ââ¬â Foreign include Haagen-Dazs, Dreyerââ¬â¢s Grand Ice Cream and Baskin-Robbins. Dreyers was the first to penetrate the local market.
Associates Degree vs Bachelors Degree Essay
Nursing education has progressed throughout history from one of uneducated lay persons to the current standards we know today. As the career has progressed it has become apparent that there is a need for a skilled labor forced trained to deal with the sick and dying, ââ¬Å"the provision of nursing care by American womenâ⬠¦demonstrated the effectiveness of skilled nursing on improving outcomes for sick and injured soldiersâ⬠(Creasia & Friberg, 2011, p. 4). However, as the career progresses so does the need for more specialized training amongst nurses to help them deal with the changing atmosphere of patient care. The future of nursing is trending towards care that involves not only treating the signs and symptoms, but enhancing the patientââ¬â¢s health through prevention and education. In order to meet these new demands the nurse of today needs to be skilled to handle these changes. Bachelorââ¬â¢s degree nursing programs ââ¬Å"encompass all of the course work taught in associate degree and diploma programs, plus a more in-depth treatment of the physical and social science, nursing research, public and community health, nursing management, and the humanitiesâ⬠(Baccalaureate Degree, 2001). This additional training prepares the nurse to have a better understanding of the outside influences that might affect their patient, along with providing them with a scope of practice that is typically broader than that of their associate counterparts (Baccalaureate Degree, 2001). These skills become important for the nurse, they can range the gamut from being able to make split second decisions in critical patient situations to simply designing a comprehensive plan of care for the patient. Many hospitals are currently recognizing the significance of the bachelors prepared nurse and are affording these nurses more responsibilities in providing patient care that highlight the complexity of the their skills over that of associate degree trained nurses (Baccalaureate Degree, 2001). ââ¬Å"Throughout the last decade, policymakers and practice leaders have recognized that education makes a differenceâ⬠(Impact of Education, n. d. ). Hospitals are also trending towards preferred hiring of bachelors prepared nurses for their workforce. Even national organizations are jumping on the bandwagon requiring ââ¬Å"all nurse managers and nurse leaders to hold a baccalaureate or graduate degree in nursing by 2013â⬠(Impact of Education, n. d. ), likewise the Institute of Medicine has also recommended that all hospitals have at least 80% of their nursing staff with a BSN or higher by the year 2020 (Impact of Education, n. d. ). Recent research has shown that hospitals and health care organizations that employ a higher number of bachelors prepared nurses see better patient outcomes as a result of the nurse having a greater capacity to practice (Impact of Education, n.d. ). Studies have shown that bachelors prepared nurses practice more confidently and as a result can react faster to patient situations resulting in better outcomes (Impact of Education, n. d. ). Also a bachelorââ¬â¢s prepared nurse is trained more extensively in ââ¬Å"clinical, scientific, decision making, and humanistic skills, including preparation in community health, patient education, and nursing management and leadershipâ⬠(Baccalaureate Degree, 2001) The education that patients get in how to care for themselves after leaving the hospital leads to better outcomes once they are gone and less recurrence of illness. The bachelors prepared nurse is better trained to handle this as their skills ââ¬Å"are essential for practice in other community sites, such as health maintenance organizations, home health services, community clinics, and managed care firmsâ⬠(Baccalaureate Degree, 2001). Also multiple studies form a variety of healthcare facilities have shown a link between a decrease in patient mortality at facilities that employ a higher percentage of bachelors trained nurses. In some cases the incidence of mortality has decreased by as much as 5% with an increase in bachelors prepared nurses at the bedside (Baccalaureate Degree, 2001). The definition of nursing according to the American Nurses Association is the following: ââ¬Å"Nursing is the protection, promotion, and optimization of health and abilities, prevention of illness and injury, alleviation of suffering through the diagnosis and treatment of human response, and advocacy in the care of individuals, families, communities, and populationsâ⬠(2012). Nurses first and foremost treat patients through education. In the situation where a patient is admitted to the hospital, teaching beings at admission but theà role of the bachelors trained nurses and the associates trained nurse differs in the roles that they play. In hospitals ââ¬Å"baccalaureate-prepared nurses are utilized in ways that recognize their different education preparation and competency from other entry-level RNsâ⬠(Baccalaureate Degree, 2001). These nurses are being afforded the ability to take on more tasks including preparing a plan that incorporates all aspects of the patients care from before they are admitted, encompassing their entire stay and ending with preparing a plan of care for the patient to follow at home. They also keep the lines of communication open between all of the different disciplines involved and coordinate care between them. This is because ââ¬Å"studies have also found that nurses prepared at the baccalaureate level have stronger communication and problem solving skills (Johnson, 1988, as cited by Boren 2012) and a higher proficiency in their ability to make nursing diagnoses and evaluate nursing interventions (Giger & Davidhizar, 1990, as cited by Boren 2012)â⬠, (Impact of Education, n.d. ). In the same situation an associate degree nurse would still provide education but they would participate by providing care at the bedside and teaching on less complex situations such as ââ¬Å"how to cope with their conditions and to maintain their care upon dischargeâ⬠(Baccalaureate Degree, 2001). Nursing is a constantly evolving career and as nurses the best way to be prepared for these changes is to be educated and to constantly strive to improve and continue our education. The bachelorââ¬â¢s degree program prepares the nurse to be better prepared to handle the workforce through several aspects. Bachelors prepared nurses have a wider knowledge base which can result in improved patient safety, lower mortality rates, and better patient education which in the end results in better patient outcomes. References American Nursing Association (2012), What is Nursing, retrieved 28 August 2012 from: http://www. nursingworld. org/EspeciallyForYou/What-is-Nursing Creasia, J. L. , & Friberg, E. (2011). Conceptual Foundations: The Bridge to professional nursing practice (5th ed. ). Philadelphia, PA: Elsevier Saunders Publishing. The Baccalaureate Degree in Nursing as Minimal Preparation for Professional Practice. (2001). American Association of College of Nursing. Retrieved from http://www. aacn. nche. edu/publications/position/bacc-degree-prep The Impact of Education on Nursing Practice. (n. d. ). American Association of Colleges of Nursing. Retrieved from http://www. aacn. nche. edu/media-relations/fact-sheets/impact-of-education.
Friday, August 16, 2019
Armed Conflict
War is often said to be rooted in multiple sources located at various levels of analysis (individual, state, or global) and compare the contributions that theories at each level have made to our understanding of the causes of war.Oxford Dictionary defines war as ââ¬Å"any active hostility or struggle between living beings; a conflict between opposing forces or principlesâ⬠(qtd. in ââ¬Å"Internet Encyclopedia of Philosophyâ⬠para. 8). Since the etiology of war is grasped from many sub-disciplines, it is but wise to learn about it based on three groupings namely: those who seek war's causation in man's biology (individual), those that seek it in his culture (global), and those who seek it in his faculty of reason.These determinants of war could give a better understanding as why it happens despite the detrimental effects it does to mankind particularly in terms of individual and global analysis.Individually, ââ¬Å"Some claim war to be a product of man's inherited biology, with disagreements raging on the ensuing determinist implicationsâ⬠(Internet Encyclopedia of Philosophy para. 18). According to the ââ¬Å"International Encyclopedia of Philosophy,â⬠Example theories include those that claim man to be naturally aggressive or naturally territorial, more complex analyses incorporate game theory and genetic evolution to explain the occurrence of violence and war (cf. Richard Dawkins for interesting comments on this area).Within this broad school of thought, some accept that man's belligerent drives can be channeled into more peaceful pursuits (William James), some worry about man's lack of inherited inhibitions to fight with increasingly dangerous weapons (Konrad Lorenz), and others claim the natural process of evolution will sustain peaceful modes of behavior over violent (Richard Dawkins) (para. 18).Rejecting biological determinism, culturalists seek to explain war's causation in terms of particular cultural institutions (Internet Encyclop edia of Philosophy para.
Thursday, August 15, 2019
Electrical and Electronics Engineering
a report on practical traning taken at bhilai steel plant, bhilai (c. g. ) submitted to :- submitted by :- prof. sandeep aysha rahman chandravanshi hod, eee submitted by :- aysha rahman semester :- 4th sem branch :- electrical & elect ronics engineering course:- b. e. college:- kruti institute of technology and engineering location:- nardaha,raipur (c. g. ) line ââ¬â up acknowledgement * certificate * introduction about sail * bhilai steel plant * sources of raw material * process flow of bsp * electrical repair shop * heavy maintainence electrical * safety * conclusion * bibilography acknoledgment I extend my sincere thanks and gratitude to all people who, despite their hectic schedule managed to find time to give lectures on their concerned area of core competence, listened to my questionnaire patiently and dispelled my doubts through interactive correspondence. I am indebted and very grateful to extend my thanks to Mr.Gaurav for all the knowledge they imparted to me and for making this training a joyful learning experience. My sincere thanks to Mr. P. V. V. Pawan and Mr. Lokesh for helping me to do my training well. C E R T I F I C A T E This is to certify that the report of B. E. 4th Semester, BHILAI STEEL PLANT project submitted by AYSHA RAHMAN bearing Roll No. :3412509004 & Enrollment No. :AF0574 , carried out for the partial fulfillment of requirement for the award of Degree in Bachelor of Engineering in ELECTRICAL & ELECTRONICS of Chhattisgarh Swami Vivekananda Technical University, Bhilai (C.G. ), India. The project work as mentioned above is here by being recommended and forwarded for examination and evaluation. ________________________________ (Signature of Head of the department) Date : STEEL AUTHORITY OF INDIA LIMITED| | TypeOwned by| State-owned enterprise Public (NSE:à SAIL, LSE:à SAUD)Government of India| Industry| Steel| Founded| 1954| Headquarters| New Delhi, India| Key people| Chandra Shekhar Verma (Chairman)| ProductionRevenue| 13. 5 million metric tons/year$9. 629 billion (2010)| Net income| 1. 520 billion (2010)|Total assets| $15. 655 billion (2010)| Employees| 131,910 (2006)| Website| http://www. sail. co. in/| Steel Authority of India Limitedà A Maharatna Steel Authority of India Limited (SAIL) is the leading steel-making company; among the top five highest profit earning corporate and one of fastest growing Public Sector Unit in India. It is a public sector undertaking which trades publicly in the market is largely owned by Government of India and acts like an operating company.It is a fully integrated iron and steel maker, producing both basic and special steels for domestic construction, engineering, power, railway, automotive and defence industries and for sale in export markets. SAIL is also among the five Maharatnaââ¬â¢s of the country's Central Public Sector Enterprises and is the 16th largest steel producer in the world. | à | SAIL manufactures and sells a broad range of steel products, including hot and cold rolled sheets and coils, galvanized sheets, electrical sheets, structural railway products, plates, bars and rods, stainless steel and other alloy steels.SAIL produces iron and steel at five integrated plants and three special steel plants, located principally in the eastern and central regions of India and situated close to domestic sources of raw materials, including the Company's iron ore, limestone and dolomite mines. The company has the distinction of being Indiaââ¬â¢s second largest producer of iron ore and of having the countryââ¬â¢s second largest mines network. This giv es SAIL a competitive edge in terms of captive availability of iron ore, limestone, and dolomite which are inputs for steel making.SAIL's wide range of long and flat steel products is much in demand in the domestic as well as the international market. This vital responsibility is carried out by SAIL's own Central Marketing Organization (CMO) that transacts business through its network of 37 Branch Sales Offices spread across the four regions,à 25 Departmentalà Warehouses, 42 Consignment Agentsà and 27 Customer Contact Offices. CMOââ¬â¢s domestic marketing effort is supplemented by its ever widening network of rural dealers who meet the demands of the smallest customers in the remotest corners of the country.SAIL's International Trade Division (ITD), in New Delhi- an ISO 9001:2000 accredited unit of CMO, undertakes exports of Mild Steel products and Pig Iron from SAILââ¬â¢s five integrated steel plants. With technical and managerial expertise and know-how in steel making gained over four decades, SAIL's Consultancy Division (SAILCON) at New Delhi offers services and consultancy to clients world-wide. SAIL has a well-equipped Research and Development Centre for Iron and Steel (RDCIS) at Ranchi which helps to produce quality steel and develop new technologies for the steel industry.Besides, SAIL has its own in-house Centre for Engineering and Technology (CET), Management Training Institute (MTI) and Safety Organization at Ranchi. Our captive mines are under the control of the Raw Materials Division in Kolkata. The Environment Management Division and Growth Division of SAIL operate from their headquarters in Kolkata. | Ownership and Management The Government of India owns about 86% of SAIL's equity and retains voting control of the Company. However, SAIL, by virtue of its ââ¬ËMaharatnaââ¬â¢ status, enjoys significant operational and financial autonomy.MAJOR UNITS Integrated Steel Plants| * Bhilai Steel Plant (BSP) in Chhattisgarh * Durgapur Steel Plant (DSP) in West Bengal * Rourkela Steel Plant (RSP) in Orissa * Bokaro Steel Plant (BSL) in Jharkhand * IISCO Steel Plant (ISP) in West Bengal | | Special Steel Plants| * Alloy Steels Plants (ASP) in West Bengal * Salem Steel Plant (SSP) in Tamil Nadu * Visvesvaraya Iron and Steel Plant (VISL) in Karnataka | | | | Jointà Ventures| | | | * NTPC SAIL Power Company Pvt. Limited (NSPCL) * Bokaro Power Supply Company Pvt.Limited (BPSCL) * Mjunction Services Limited * SAIL-Bansal Service Centre Limited * Bhilai JP Cement Limited * Bokaro JP Cement Limited * SAIL ; MOIL Ferro Alloys (Pvt. ) Limited * S ; T Mining Company Pvt. Limited * International Coal Ventures Private Limited * SAIL SCI Shipping Pvt. Limited * SAIL RITES Bengal Wagon Industry Pvt. Limited * SAIL SCL Limited| | bHILAI STEEL PLANT The Bhilai Steel Plant (BSP) ââ¬â a public sector undertaking run by the Steel Authority of India ââ¬â built with Soviet co-operation and technology, and began production in 1959 .Located inà Bhilai,à Chhattisgarh isà India's only producer ofà steelà rails, and is a major producer of rails and heavy steel plates and structural components. In the 2004-05à fiscal year, it is theà Steel Authority of India Limited's most profitable plant. This steel plant was set up with the help of the USSR. Nine ââ¬â time winner of Prime Minister's Trophy for best Integrated Steel Plant in the country. The plant is the sole supplier of the country's longest rail tracks of 260 metres. With an annual production capacity of 3. 53 MT of saleable steel, the plant also specializes in other products such as wire rods and merchant products. Since BSP is accredited with ISO 9001:2000 Quality Management System Standard, all saleable products of Bhilai Steel Plant come under the ISO umbrella. At Bhilai IS0:14001 have been awarded for Environment Management System in the Plant, Township and Dalli Mines. It is the only steel plant to get certification in all these areas. The Plant is accredited with SA: 8000 certification for social accountability and the OHSAS-18001 certification for Occupational health and safety.These internationally recognised certifications add value to Bhilai's products the best organizations in the steel industry. Among the long list of national awards it has won, Bhilai has bagged the CII-ITC Sustainability award for three consecutive years. Bhilai Steel Plant manages a well planned township (Bhilainagar) which as 13 sectors. It was deliberately located in what was then regarded as a remote and ââ¬Å"backwardâ⬠rural area, profits being secondary to employment in the planning priorities of the time.BSP currently has nearly 55,000 permanent workers on its direct pay-roll, of whom approximately three-fifths work inside the 17 square kilometer plant and the remainder for its associated mines and quarries, and for the purpose-built BSP township. This compares with a regular workforce of 63,400 in 1987. In addition, on any one day there are at present something in the region of 8,000 contract workers employed by the plant and the township, and a further 3,500 ââ¬â 4,000 employed by the mines. BSP has for some years shown a profit, and is widely regarded as the most successful of those in the Indian public sector.It runs at its four million ton capacity; produces cheaper steel, and has a record of considerably more harmonious industrial relations than any of the other state-run steel plants, and also than the vast majority of private sector factories which now surround it, and for which it served as a magnet. Though local job creation was one of its main objectives,à and though the principle was soon established that one member from every family which had relinquished land should have an automatic right to BSP employment, the local Chhattisgarhis were initially reluctant recruits.Location : Forty kms west of Raipur, the capital city of Chhattisgarh, along the Howrah-Mumbai railway line and the Gr eat-Eastern highway, stands Bhilai Steel Plant (BSP). Source of Raw Materials: 1. Iron Oreà à à à à à à à à à à à à à à à à à à à à à à à à â⬠¦. Dalli, Rajahara Minesà à 2. Lime Stoneà à à à à à à à à à à à à à à à à à à à à â⬠¦. Nandini Mines 3. Manganese à à à à à à à à à à à à à à à à à à à à â⬠¦. Balaghat Mines 4. Sinterà à à à à à à à à à à à à à à à à à à à à à à à à à à à à â⬠¦. Sintering Plants (SP-2, SP-3) 5. Cokeà à à à à à à à à à à à à à à à à à à à à à à à à à à à à à â⬠¦. Coke Ovens (Coke sorting plants) 6. Converter Slagà à à à à à à à à à à à à à â⬠¦. SMS ââ¬â l Captive minesIron-ore| ââ¬â Dalli-Rajhara Iron Ore Complex, 80 kms from Bhilai | Limestone | ââ¬â Nandini, 23 kms from Bhilai| Dolomite| ââ¬â Hirri, 150 kms from Bhilai| Coke Ovens BATT NO. | NO. OF OVENS| OVEN HEIGHT(M) | COAL HOLDING CAPACITY PER OVEN (T) | USEFUL VOLUME PER OVEN CU. M. | SP. HEAT CONSPN. KCAL/KG| 1-8| 65| 4. 3| 16. 8| 21. 6| 625-675 | 9&10| 67| 7. 0| 32. 0| 41. 6| 625-675 | Blast Furnaces * 3 of 1033 Cu m capacity each * 3 of 1719 Cu m capacity each * 1 of 2355 Cu m capacity Hot Metal Capacity: 4. 70 MT / year PROCESS FLOW OF BSP PROCUCTS OF BSP A. FINISHED PRODUCTS Rail & Structural Mill Rails in 13m, 26m, 65/78 m length and welded panels of 130m / 260m length Indian Railways, Export Heavy Structurals Construction, Crane Rails, Cranes, Crossing sleepers, Broad gauge sleepers * Merchant Mill Lt. Structurals, Engineering and Construction, Med. Rounds (Plain & TMT), Heavy rounds (Plain) * Wire Rod Mill Wire Rods- Plain Construction, Wire Rods- TMT, EQ Wire Rods Electrodes * Plate Mill Plates Boilers, Defence, Railways, Ship building, LPG cylinder s, Export B. SEMISBillets (from BBM), Re-rollers Blooms (from BBM), Narrow width slabs, CC Blooms, Killed Slabs C. Pig Iron Foundry D. By Products Coal Chemicals, Ammonium Sulphate (Fertiliser) Tar and tar products, (Pitch, Naphthalene, Creosote Oil Road Tar, Anthracene oil, Dephenolised oil, PCM etc. ), Benzol & its products (NG Benzene, Toluene, Xylene, Solvent oil, By. Benzol etc. ), Processed Slag Granulated slag from CHSG Plants & SGP for cement manufacture. RODUCT-MIX| TONNES/ANNUM| Semis | 5,33,000| Rail & Heavy Structural | 7,50,000| Merchant Products (Angles, Channels, Round & TMT bars)| 5,00,000|Wire Rods (TMT, Plain & Ribbed) | 4,20,000| Plates (up to 3600 mm wide) | 9,50,000| Total Saleable steel | 31,53,000 | Requirements for producing of one ton of Hot Metal (Specific Consumption) Iron Oreà à à à à à à à à à à à à à à à à à à à à à à à â⬠¦. 459 Kg Lime Stoneà à à à à à à à à à à à à à à à à â⬠¦. 850 Kg(Depending on Sinter Usage) Manganeseà à à à à à à à à à à à à à à à à â⬠¦. 800 Kg(50% in burden) Sinterà à à à à à à à à à à à à à à à à à à à à à à à à à à â⬠¦. 35 Kg Cokeà à à à à à à à à à à à à à à à à à à à à à à à à à à à â⬠¦. 08 Kg ELECTRICAL RERAIP SHOP JOB FLOW CHART PLANT RECEIPT & ISSUE AT ERS TESTING MACHINE &SPARE PART ASSEMBLY COMMUTATOR WINDING & MAGNET TRANSFORMER VARNISHING TASKS done in ers * Assembles electrical parts such as alternators, generators, starting devices and switches; following schematic drawings, using hand, machine and power tools. * Repairs and rebuilds defective mechanical parts in electric motors, generators and related equipment, using hand tools and power tools. * Tests for overheating, using speed gauges and thermometers. * Rewinds coils on core while core is in slots, or make replacement coils, using coil-winding machine. Replaces defective parts such as coil leads, carbon brushes and connecting wires using soldering equipment. * Installs, secures and aligns parts using hand tools welding equipment and electrical meters. * Rewires electrical systems and repairs or replaces electrical accessories. * Reassembles repaired electric motors to specified requirements and ratings, using hand tools and electric meters. * Disassembles defective units using hand tools. * Measures velocity, horsepower, r. p. m, amperage circuitry and voltage of units or parts using electrical meters and mechanical testing devices. Cuts and removes parts such as defective coils and insulation. * Adjusts working parts such as fan belt tension, voltage output, contacts and springs using hand tools and verifies corrections using gauges. * Tests charges and replaces batteries. * Inspects parts for wear or damage or reads work order or schematic drawings to determine requir ed repairs. * Cuts and forms insulation and inserts insulation into armature, rotor or stator slots. * Refaces, reams and polishes commutators and machine parts to specified tolerances using machine tools. HEAVY MAINTENANCE ELECTRICALS MAINTENANCE OF MOTORSThe key to minimizing motor problems is scheduled routine inspection and service. The frequency of routine service varies widely between applications. Including the motors in the maintenance schedule for the driven machine or general plant equipment is usually sufficient. A motor may require additional or more frequent attention if a breakdown would cause health or safety problems, severe loss of production, damage to expensive equipment or other serious losses. Written records indicating date, items inspected, service performed and motor condition are important to an effective routine maintenance program.From such records, specific problems in each application can be identified and solved routinely to avoid breakdowns and product ion losses. The routine inspection and servicing can generally be done without disconnecting or disassembling the motor. It involves the following factors: Dirt and Corrosion: 1. Wipe, brush, vacuum or blow accumulated dirt from the frame and air passages of the motor. Dirty motors run hot when thick dirt insulates the frame and clogged passages reduce cooling air flow. Heat reduces insulation life and eventually causes motor failure. 2. Feel for air being discharged from the cooling air ports.If the flow is weak or unsteady, internal air passages are probably clogged. Remove the motor from service and clean. 3. Check for signs of corrosion. Serious corrosion may indicate internal deterioration and/or a need for external repainting. Schedule the removal of the motor from service for complete inspection and possible rebuilding. 4. In wet or corrosive environments, open the conduit box and check for deteriorating insulation or corroded terminals. Repair as needed. Lubrication: Lubrica te the bearings only when scheduled or if they are noisy or running hot.Do NOT over-lubricate. Excessive grease and oil creates dirt and can damage bearings. Heat, Noise and Vibration: Feel the motor frame and bearings for excessive heat or vibration. Listen for abnormal noise. All indicate a possible system failure. Promptly identify and eliminate the source of the heat, noise or vibration. Winding Insulation: When records indicate a tendency toward periodic winding failures in the application, check the condition of the insulation with an insulation resistance test. Such testing is especially important for motors operated in et or corrosive atmospheres or in high ambient temperatures. Brushes and Commutators (DC Motors): 1. Observe the brushes while the motor is running. The brushes must ride on the commutator smoothly with little or no sparking and no brush noise (chatter). 2. Stop the motor. Be certain that: * The brushes move freely in the holder and the spring tension on each brush is about equal. * Every brush has a polished surface over the entire working face indicating good seating. * The commutator is clean, smooth and has a polished brown surface where the brushes ride.NOTE: Always put each brush back into its original holder. Interchanging brushes decreases commutation ability. * There is no grooving of the commutator (small grooves around the circumference of the commutator). If there is grooving, remove the motor from service immediately as this is a symptomatic indication of a very serious problem. 3. Replace the brushes if there is any chance they will not last until the next inspection date. 4. If accumulating, clean foreign material from the grooves between the commutator bars and from the brush holders and posts. 5.Brush sparking, chatter, excessive wear or chipping, and a dirty or rough commutator indicate motor problems requiring prompt service. Figure 1. Typical DC Motor Brushes and Commutator Brushes and Collector Rings (Synchronous Mot ors) 1. Black spots on the collector rings must be removed by rubbing lightly with fine sandpaper. If not removed, these spots cause pitting that requires regrinding the rings. Figure 2. Rotary Converter Armature Showing Commutator And Slip Rings. 2. An imprint of the brush, signs of arcing or uneven wear indicate the need to remove the motor from service and repair or replace the rings. . Check the collector ring brushes as described under ââ¬Å"Brushes and Commutatorsâ⬠. They do not, however, wear as rapidly as commutator brushes. BEARING LUBRICATION: Introduction Modern motor designs usually provide a generous supply of lubricant in tight bearing housings. Lubrication on a scheduled basis, in conformance with the manufacturer's recommendations, provides optimum bearing life. Thoroughly clean the lubrication equipment and fittings before lubricating. Dirt introduced into the bearings during lubrication probably causes more bearing failures than the lack of lubrication.Too mu ch grease can over pack bearings and cause them to run hot, shortening their life. Excessive lubricant can find its way inside the motor where it collects dirt and causes insulation deterioration. Many small motors are built with permanently lubricated bearings. They cannot and should not be lubricated. OILING SLEEVE BEARINGS: As a general rule, fractional horsepower motors with a wick lubrication system should be oiled every 2000 hours of operation or at least annually. Dirty, wet or corrosive locations or heavy loading may require oiling at three-month intervals or more often.Roughly 30 drops of oil for a 3-inch diameter frame to 100 drops for a 9-inch diameter frame is sufficient. Use a 150 SUS viscosity turbine oil or SAE 10 automotive oil. Some larger motors are equipped with oil reservoirs and usually a sight gage to check proper level. (Fig. 3) As long as the oil is clean and light in colour, the only requirement is to fill the cavity to the proper level with the oil recommen ded by the manufacturer. Do not overfill the cavity. If the oil is discoloured, dirty or contains water, remove the drain plug. Flush the bearing with fresh oil until it comes out clean.Coat the plug threads with a sealing compound, replace the plug and fill the cavity to the proper level. When motors are disassembled, wash the housing with a solvent. Discard used felt packing. Replace badly worn bearings. Coat the shaft and bearing surfaces with oil and reassemble. Figure 3. Cross Section of the Bearing System of a Large Motor GREASING BALL AND ROLLER BEARINGS: Practically all Reliance ball bearing motors in current production are equipped with the exclusive PLS/Positive Lubrication System. PLS is a patented open-bearing system that provides long, reliable bearing and motor ife regardless of mounting position. Its special internal passages uniformly distribute new grease pumped into the housing during regreasing through the open bearings and forces old grease out through the drain hole. The close running tolerance between shaft and inner bearing cap minimizes entry of contaminants into the housing and grease migration into the motor. The unique V-groove outer slinger seals the opening between the shaft and end bracket while the motor is running or is at rest yet allows relief of grease along the shaft if the drain hole is plugged. Figure 4) The frequency of routine greasing increases with motor size and severity of the application as indicated in Table 1. Actual schedules must be selected by the user for the specific conditions. During scheduled greasing, remove both the inlet and drain plugs. Pump grease into the housing using a standard grease gun and light pressure until clean grease comes out of the drain hole. If the bearings are hot or noisy even after correction of bearing overloads (see ââ¬Å"Troubleshootingâ⬠) remove the motor from service. Wash the housing and bearings with a good solvent. Replace bearings that show signs of damage or wear.Rep ack the bearings, assemble the motor and fill the grease cavity. Whenever motors are disassembled for service, check the bearing housing. Wipe out any old grease. If there are any signs of grease contamination or breakdown, clean and repack the bearing system as described in the preceding paragraph. Figure 4. Cross Section of PLS Bearing System (Positive Lubrication System) HEAT, NOISE AND VIBRATION Heat Excessive heat is both a cause of motor failure and a sign of other motor problems. The primary damage caused by excess heat is to increase the aging rate of the insulation. Heat beyond the insulation's rating shortens winding life.After overheating, a motor may run satisfactorily but its useful life will be shorter. For maximum motor life, the cause of overheating should be identified and eliminated. As indicated in the Troubleshooting Sections, overheating results from a variety of different motor problems. They can be grouped as follows: * WRONG MOTOR: It may be too small or have the wrong starting torque characteristics for the load. This may be the result of poor initial selection or changes in the load requirements. * POOR COOLING: Accumulated dirt or poor motor location may prevent the free flow of cooling air around the motor.In other cases, the motor may draw heated air from another source. Internal dirt or damage can prevent proper air flow through all sections of the motor. Dirt on the frame may prevent transfer of internal heat to the cooler ambient air. * OVERLOADED DRIVEN MACHINE: Excess loads or jams in the driven machine force the motor to supply higher torque, draw more current and overheat. Table 1. Motor Operating Conditions Motor Horsepower| Light Duty(1)| Standard Duty(2)| Heavy Duty(3)| Severe Duty(4)| Up to 7-1/2 10 to 40 50 to 150 Over 150| 10 years 7 years 4 years 1 year| 7 years years 1-1/2 years 6 months| 4 years 1-1/2 years 9 months 3 months| 9 months 4 months 3 months 2 months| * Light Duty: Motors operate infrequently (1 hour/day or less) as in portable floor sanders, valves, door openers. * Standard Duty: Motors operate in normal applications (1 or 2 work shifts). Examples include air conditioning units, conveyors, refrigeration apparatus, laundry machinery, woodworking and textile machines, water pumps, machine tools, garage compressors. * Heavy Duty: Motors subjected to above normal operation and vibration (running 24 hours/day, 365 days/year).Such operations as in steel mill service, coal and mining machinery, motor-generator sets, fans, pumps. * Severe Duty: Extremely harsh, dirty motor applications. Severe vibration and high ambient conditions often exist. * EXCESSIVE FRICTION: Misalignment, poor bearings and other problems in the driven machine, power transmission system or motor increase the torque required to drive the loads, raising motor operating temperature. * ELECTRICAL OVERLOADS: An electrical failure of a winding or connection in the motor can cause other Windings or the entire motor to overh eat. Noise and VibrationNoise indicates motor problems but ordinarily does not cause damage. Noise, however, is usually accompanied by vibration. Vibration can cause damage in several ways. It tends to shake windings loose and mechanically damages insulation by cracking, flaking or abrading the material. Embrittlement of lead wires from excessive movement and brush sparking at commutators or current collector rings also results from vibration. Finally, vibration can speed bearing failure by causing balls to ââ¬Å"brinnell,â⬠sleeve bearings to be pounded out of shape or the housings to loosen in the shells.Whenever noise or vibrations are found in an operating motor, the source should be quickly isolated and corrected. What seems to be an obvious source of the noise or vibration may be a symptom of a hidden problem. Therefore, a thorough investigation is often required. Noise and vibrations can be caused by a misaligned motor shaft or can be transmitted to the motor from the d riven machine or power transmission system. They can also be the result of either electrical or mechanical unbalance in the motor. After checking the motor shaft alignment, disconnect the motor from the driven load.If the motor then operates smoothly, look for the source of noise or vibration in the driven equipment. If the disconnected motor still vibrates, remove power from the motor. If the vibration stops, look for an electrical unbalance. If it continues as the motor coasts without power, look for a mechanical unbalance. Electrical unbalance occurs when the magnetic attraction between stator and rotor is uneven around the periphery of the motor. This causes the shaft to deflect as it rotates creating a mechanical unbalance. Electrical unbalance usually indicates an electrical failure such as an open tator or rotor winding, an open bar or ring in squirrel cage motors or shorted field coils in synchronous motors. An uneven air gap, usually from badly worn sleeve bearings, also pr oduces electrical unbalance. The chief causes of mechanical unbalance include a distorted mounting, bent shaft, poorly balanced rotor, loose parts on the rotor or bad bearings. Noise can also come from the fan hitting the frame, shroud, or foreign objects inside the shroud. If the bearings are bad, as indicated by excessive bearing noise, determine why the bearings failed.Brush chatter is a motor noise that can be caused by vibration or other problems unrelated to vibration. WINDINGS: Care of Windings and Insulation Except for expensive, high horsepower motors, routine inspections generally do not involve opening the motor to inspect the windings. Therefore, long motor life requires selection of the proper enclosure to protect the windings from excessive dirt, abrasives, moisture, oil and chemicals. When the need is indicated by severe operating conditions or a history of winding failures, routine testing can identify deteriorating insulation.Such motors can be removed from service and repaired before unexpected failures stop production. Whenever a motor is opened for repair, service the windings as follows: 1. Accumulated dirt prevents proper cooling and may absorb moisture and other contaminants that damage the insulation. Vacuum the dirt from the windings and internal air passages. Do not use high pressure air because this can damage windings by driving the dirt into the insulation. 2. Abrasive dust drawn through the motor can abrade coil noses, removing insulation. If such abrasion is found, the winding should be revarnished or replaced. . Moisture reduces the dielectric strength of insulation which results in shorts. If the inside of the motor is damp, dry the motor per information in ââ¬Å"Cleaning and Drying Windingsâ⬠. 4. Wipe any oil and grease from inside the motor. Use care with solvents that can attack the insulation. 5. If the insulation appears brittle, overheated or cracked, the motor should be revarnished or, with severe conditions, rewou nd. 6. Loose coils and leads can move with changing magnetic fields or vibration, causing the insulation to wear, crack or fray. Revarnishing and retying leads may correct minor problems.If the loose coil situation is severe, the motor must be rewound. 7. Check the lead-to-coil connections for signs of overheating or corrosion. These connections are often exposed on large motors but taped on small motors. Repair as needed. 8. Check wound rotor windings as described for stator windings. Because rotor windings must withstand centrifugal forces, tightness is even more important. In addition, check for loose pole pieces or other loose parts that create unbalance problems. 9. The cast rotor rods and end rings of squirrel cage motors rarely need attention.However, open or broken rods create electrical unbalance that increases with the number of rods broken. An open end ring causes severe vibration and noise. TESTING WINDINGS Routine field testing of windings can identify deteriorating ins ulation permitting scheduled repair or replacement of the motor before its failure disrupts operations. Such testing is good practice especially for applications with severe operating conditions or a history of winding failures and for expensive, high horsepower motors and locations where failures can cause health and safety problems or high economic loss.The easiest field test that prevents the most failures is the ground-insulation or 127 megger test. It applies DC voltage, usually 500 or 1000 volts, to the motor and measures the resistance of the insulation. NEMA standards require a minimum resistance to ground at 40 degrees C ambient of 1 mega ohm per kv of rating plus 1 mega ohm. Medium size motors in good condition will generally have mega ohmmeter readings in excess of 50 mega ohms. Low readings may indicate a seriously reduced insulation condition caused by contamination from moisture, oil or conductive dirt or deterioration from age or excessive heat.One megger reading for a motor means little. A curve recording resistance, with the motor cold and hot, and date indicates the rate of deterioration. This curve provides the information needed to decide if the motor can be safely left in service until the next scheduled inspection time. The megger test indicates ground insulation condition. It does not, however, measure turn-to-turn insulation condition and may not pick up localized weaknesses. Moreover, operating voltage peaks may stress the insulation more severely than megger voltage.Experience and conditions may indicate the need for additional routine testing. A test used to prove existence of a safety margin above operating voltage is the AC high potential ground test. It applies a high AC voltage (typically, 65% of a voltage times twice the operating voltage plus 1000 volts) between windings and frame. Although this test does detect poor insulation condition, the high voltage can arc to ground, burning insulation and frame, and can also actually ca use failure during the test. It should never be applied to a motor with a low megger reading.DC rather than AC high potential tests are becoming popular because the test equipment is smaller and the low test current is less dangerous to people and does not create damage of its own. CLEANING AND DRYING WINDINGS Motors which have been flooded or which have low megger readings because of contamination by moisture, oil or conductive dust should be thoroughly cleaned and dried. The methods depend upon available equipment. A hot water hose and detergents are commonly used to remove dirt, oil, dust or salt concentrations from rotors, stators and connection boxes.After cleaning, the windings must be dried, commonly in a forced-draft oven. Time to obtain acceptable megger readings varies from a couple hours to a few days. BRUSH AND COMMUTATOR CARE Some maintenance people with many relatively trouble-free AC squirrel cage motors forget that brushes and commutators require more frequent routin e inspection and service. The result can be unnecessary failures between scheduled maintenance. Many factors are involved in brush and commutator problems. All generally involve brush sparking usually accompanied by chatter and often excessive wear or chipping.Sparking may result from poor commutator conditions or it may cause them. The degree of sparking should be determined by careful visual inspection. The illustrations shown in Fig. 5 are a useful guide. It is very important that you gauge the degree number as accurately as possible. The solution to the problem may well depend upon the accuracy of your answer since many motor, load, environmental and application conditions can cause sparking. It is also imperative that a remedy be determined as quickly as possible. Sparking generally feeds upon itself and becomes worse with time until serious damage results.Some of the causes are obvious and some are not. Some are constant and others intermittent. Therefore, eliminating brush sp arking, especially when it is a chronic or recurring problem, requires a thorough review of the motor and operating conditions. Always recheck for sparking after correcting one problem to see that it solved the total problem. Also remember that, after grinding the commutator and properly reseating the brushes, sparking will occur until the polished, brown surface reforms on the commutator. Figure 5. Degrees of Generator and Motor SparkingNOTE: Small sparks are yellow in colour, and the large sparks are white in colour. The white sparks, or blue-white sparks, are most detrimental to commutation (both brush and commutator). First consider external conditions that affect commutation. Frequent motor overloads, vibration and high humidity cause sparking. Extremely low humidity allows brushes to wear through the needed polished brown commutator surface film. Oil, paint, acid and other chemical vapours in the atmosphere contaminate brushes and the commutator surface. Look for obvious brush and brush holder deficiencies: 1.Be sure brushes are properly seated, move freely in the holders and are not too short. 2. The brush spring pressure must be equal on all brushes. 3. Be sure spring pressure is not too light or too high. Large motors with adjustable springs should be set at about 3 to 4 pounds per square inch of brush surface in contact with the commutators. 4. Remove dust that can cause a short between brush holders and frame. 5. Check lead connections to the brush holders. Loose connections cause overheating. Look for obvious commutator problems: 1. Any condition other than a polished, brown surface under the brushes indicates a problem.Severe sparking causes a rough blackened surface. An oil film, paint spray, chemical contamination and other abnormal conditions can cause a blackened or discolored surface and sparking. Streaking or grooving under only some brushes or flat and burned spots can result from a load mismatch and cause motor electrical problems. Grooved commutators should be removed from service. A brassy appearance shows excessive wear on the surface resulting from low humidity or wrong brush grade. 2. High mica or high or low commutator bars make the brushes jump, causing sparking. 3.Carbon dust, copper foil or other conductive dust in the slots between commutator bars causes shorting and sometimes sparking between bars. If correcting any obvious deficiencies does not eliminate sparking or noise, look to the less obvious possibilities: 1. If brushes were changed before the problem became apparent, check the grade of brushes. Weak brushes may chip. Soft, low abrasive brushes may allow a thick film to form. High friction or high abrasion brushes wear away the brown film, producing a brassy surface. If the problem appears only under one or more of the brushes, two different grades of brushes may have been installed.Generally, use only the brushes recommended by the motor manufacturer or a qualified brush expert. 2. The brush holder may have been reset improperly. If the boxes are more than 1/8â⬠³ from the commutator, the brushes can jump or chip. Setting the brush holder off neutral causes sparking. Normally the brushes must be equally spaced around the commutator and must be parallel to the bars so all make contact with each bar at the same time. 3. An eccentric commutator causes sparking and may cause vibration. Normally, concentricity should be within . 001â⬠³ on high speed, . 002â⬠³ on medium speed and . 04â⬠³ on slow speed motors. 4. Various electrical failures in the motor windings or connections manifest themselves in sparking and poor commutation. Look for shorts or opens in the armature circuit and for grounds, shorts or opens in the field winding circuits. A weak interpole circuit or large air gap also generate brush sparking. SAFETY ACCIDENT in industrial sector defines any incident which has potential to cause injury to human, loss of property and damage to environment. Causes for occurrence of accident * Unsafe Act * Unsafe Conditions Hazards * Conditions prevailing in work place finally leading to accidents.Types * Mechanical * Electrical * Chemical * Environmental Precautions * Look overhead * Watch steps * Wear shoes and helmets * Take care of the flow opening * Avoid lose clothing * Always carry your I-D card CONCLUSION In this project, I have studied the working of electrical repair shop and about the function of Bhilai steel plant. I have obtained some knowledge about * Rolling mill * Blast furnace * Electrical repair shop * Motor windings BIBLIOGRAPHY NOTES TAKEN DURING THE TENURE OF THE VOCATIONAL TRANING INTERNET: www. google. com INTRANRT: SAIL, BSP INTRANET SITE
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