The argument of whether God exists or not Essay Example for Free

The contention of whether God exists or not Essay The contention of whether God exists or not is a since quite a while ago discussed contention spreading over the hundreds of years. In David Humes Dialogs Concerning Natural Religion this point is tended to through an exchange and discussion between Humes anecdotal characters Cleanthes and Philo. Cleanthes presents the contention that Gods presence can be affirmed to man and presents this contention as the Argument from Design. Philo then offers a few protests with regards to why this contention fizzles. This paper will examine Cleanthes Argument from Design and detail Philos analysis of Cleanthes position. This analysis will incorporate the similarity identified with the induction of Gods presence dependent on perception of our universe just as Philos analysis that unconstrained request found by age and vegetation neglect to help proof of a maker. To loan further help to Philos contention, it is imperative to decide whether the universe is, truth be told, in a condition of request, and whether God, being commonly acknowledged as baffling and mysterious by the strict, is totally understandable through induction as proposed by Cleanthes. These contentions introduced by Philo loan backing to why the Argument from Design comes up short. David Hume presents through his character, Cleanthes, the contention that the nature and presence of God can be demonstrated through surmising dependent on perception of our universe. Cleanthes endeavors to demonstrate this in his Argument from Design, which expresses that by seeing the regular excellence and precision of the universe, its multifaceted nature and unpredictability, that we can construe without a doubt that a preeminent creator made the universe. To additionally explain, as found in the online reference book concerning this contention, Wikipedia states, Although there are varieties, the essential contention can be expressed as follows: 1) Every structure has a creator; 2) The universe has exceptionally complex plan; 3) Therefore, the universe has a Designer (Wikipedia, Section: Argument, standard 4). Cleanthes position is that the nature and presence of God can be affirmed through induction of our apparently deliberate universe. A relationship to endeavor to set and demonstrate this position is regularly utilized by observational belief in higher powers by expressing that comparative machines concocted by man are in like manner frequently extremely mind boggling and it along these lines normally follows that since man made machines are intricate and have a fashioner then it is protected to presume that in light of the fact that the universe is additionally perplexing it, as well, has an originator. Observational belief in a higher power claims there is an architect and designer answerable for our condition and that the presence of God can be affirmed by reason through deduction. These premises structure the significant purposes of the Argument from Design Hume transfers in the content through his character Cleanthes position. Philo offers counter contentions, one of which asserts that the similarity of the methodical universe and machines is a feeble one and it follows that any thinking done dependent on the relationship will likewise be frail (Spark Notes, Par 4). For this similarity to be effectively utilized, the machine that is depicted must not be a piece of the universe however exist outside of the universe. Both the universe and the machine must be totally unrelated of one another and not one a piece of the other for the similarity to work. The inquiry lies in whether everything is made by a preeminent maker. A machine is a piece of the universe and it is being proposed by Cleanthes that the universe was made by God. Conceded a machine may have been made by a man however the man could conceivably have been made by an incomparable maker. The machine must exist autonomously and beyond the universe to be a conceivable similarity with respect to whether it was made by a preeminent creator or not. On account of this reality, reason can't be utilized to finish up with this similarity that derivation will uncover supreme information on Gods presence bringing about the Argument from Design being flawed. Alongside this contention Philo makes against Cleanthes Argument from Design is that all request that we can observer isn't really the aftereffect of wise plan and can't be affirmed by induction or our faculties. Philo states that some request, for example, that found in natural bodies, is brought about by age and vegetation (Spark Notes, standard 5). It is this contention that underpins that the Argument from Design is wrong. Investigating Philos contention, some clear request as found among species and vegetation might be the aftereffect of the right conditions to exist wherein the request has come to fruition by the laws of the universe that direct the procedures. The Big Bang hypothesis is one case of this. Advancement is another. Conditions existed normally to achieve the riotous blast toward the arrangement of the close planetary system represented by the laws of the universe that exist. Earth conditions made it appropriate for life to develop. Science has since a long time ago acknowledged the hypothesis of development and the Big Bang hypothesis and backing is developing as science propels on the side of these speculations. These logical speculations loan backing to Philos contention that request found among natural bodies is because of procedures that normally happen and not by any aims of a planner. Cleanthes guarantees that surmisings made while seeing the universe and the Earth whereupon we live and the procedures that oversee our reality, for example, the laws of nature and the universe affirm the presence of God. We can expect that the request we see is the consequence of a celestial maker, however that derivation is simply a hunch and isn't, accordingly, total assuredness. It is what is known as an informed conjecture. Taught surmises are surmises dependent on induction. Some of the time they are right. Different occasions they are most certainly not. In any case, instructed surmises are not supreme information on something, and for this situation it isn't outright information on the presence of God and the Argument from Design comes up short. Philos contention that these regular procedures that exist on our planet and all through the universe don't loan supreme information on a celestial maker is right. The watchwords are outright information. While there may have been a maker behind the procedures of arrangement of the universe or the laws that oversee its evident efficiency, it isn't total assuredness that that is so through surmising alone and that is the thing that the Argument of Design indicates to claimThat total information on Gods presence can be construed. Thirdly, with respect to Philos contention that numerous procedures are the consequence of age and vegetation one can likewise address whether the earth, nearby planetary group, or universe is, actually, a condition of efficiency. It might be an error to expect that we live in a systematic universe or on a planet of request. It is conceivable that our nearby planetary group and planet are in a condition of sloppiness and bedlam. Since we exist and can get by in our condition, we accept this is deliberate. Mankind lives in an air pocket or aquarium, the planet earth. Some request brought about by age and vegetation may probably be the aftereffect of the right conditions precipitously being available for life to endure; be that as it may, we are powerless to riotous action, the common developments of the structural plates of the earth causing seismic tremors, Tsunamis and tornadoes, outside impacts in our nearby planetary group and the universe, for example, space rocks and comets, scattered, irregular, disordered occasions that undermine our own reality. Because life exists and can make due on this planet doesn't comprise a condition of request. For Cleanthes to have the option to gather from efficiency that a celestial maker was the reason for the request, one should above all else decide if the universe, close planetary system, and our plant, truth be told, are in a condition of request. In the event that these things are in a condition of turmoil and confusion, at that point no derivation as to configuration can be made nor can the presence of a planner be induced effectively or affirmed with outright information. At long last, on the side of Philos contention against the Argument from Design, it is difficult to legitimately close by surmising that an incomparable maker is behind the production of our universe or planet and this is confirm by the general strict mainstream thinking that God is puzzling. As characterized by Dictionary. com, the word strange conveys the significance Of darken nature, which means, cause, and so forth , perplexing, odd (Dictionary. com, standard 3). To be puzzling is to not completely be comprehensible. On the off chance that God works in baffling manners as is ordinarily asserted, at that point the very idea of God and what he has or has not made is only that, puzzling and not completely understandable as characterized. This likewise loans backing to Philos contention that the Argument from Design falls flat. The contention of whether God exists or not is a since quite a while ago discussed contention crossing the hundreds of years. Philos contention that the relationship utilized by Cleanthes contrasting a machine and the universe is frail loans backing to the way that surmising isn't total information on an awesome maker. The explanation behind this is a machine is a piece of the universe or entirety. For this similarity to work, they should be totally unrelated. Besides, Philo calls attention to that some normal procedures are the aftereffects of age and vegetation, common procedures that are autonomous of any maker however happen normally. In the event that such marvels happen precipitously without intercession or maker, at that point it is conceivable the universe came to fruition likewise. Thirdly, so as to have the option to surmise with outright information on a heavenly maker dependent on perception of an efficient situation, we should decide if, indeed, the earth where we live is in a condition of deliberateness or on the off chance that we are a piece of a disordered universe. In the event that we are not part of a methodical universe but rather it, truth be told, is confused and scattered, at that point the subject of whether an awesome maker is included is an unsettled issue. At last, famous strict conviction concurs that the very idea of God is one of a baffling sort. On the off chance that God is puzzling, by definiti

How to Win Friends and Influence People essays

Step by step instructions to Win Friends and Influence People articles Dale Carnegies book How to Win Friends and Influence People gives techniques for guidance and models regarding how to triumph in the social world. It remembers sections for how to deal with individuals, how to make individuals like you, how to win individuals in your mind, and how to be a pioneer. The book starts with an introduction of proposals on the best way to get the greater part of the book. These incorporate investigating it occasionally and taking the proposals with a receptive outlook and earnestness. The main part opens the peruser to the procedure of how to deal with individuals effectively. It underlines that so as to comprehend individuals one must respect the circumstance from their perspective. A great many people have explanations behind choosing what they do. The individuals who perpetrate violations and burglarize stores don't see themselves as awful individuals. Criminals, for example, Al Capone viewed themselves as neglected and unrecognized open supporters, not as foes of the state. Individuals don't denounce themselves, so for what reason would it be a good idea for one to censure others? Exercise one discloses to the peruser that one ought to never reprimand, gripe, or denounce others. Rule two recommends that you give individuals your earnest and fair appreciation. An individual ought not think about his achievements or victories, yet praise others on theirs. The most significant thing one can give another is his certifiable appreciation. I consider my capacity to s timulate energy among individuals the best resource I have, and the best approach to build up the best that is in an individual is by gratefulness and consolation. - Charles Schwab You can compromise individuals forcibly or cruel words, yet the best way to get others to do what you wish is to give them what they need. What do they need? Appreciation. Rule three in the crucial procedures of taking care of individuals manages how to stimulate in the other individual an enthusiastic need. It is anything but difficult to tell individuals your necessities, yet nobody needs to hear them. Individuals are just intere... <! Step by step instructions to Win Friends and Influence individuals expositions Step by step instructions to Win Friends This book was written in 1936 by Dale Carnegie. A portion of the terms and jargon utilized are dated however the exhortation and data can even now be utilized today. It manages correspondence with others and the requirement for all gatherings to have the option to see the goal from the others' perspective. The point of view of the book is from a place of intensity or the executives yet it tends to be helpful to anybody that understands it. While this book is valuable, it ought to be recalled that it was composed during when the individuals in the workforce had an exceptionally solid protestant hard working attitude associated into them. The book is separated into four sections, and they are: Fundamental Techniques in Handling People. The following segment is called: Six Ways to Make People Like You. The third section is titled: How to Win People in Your Mind. The last section is called: Be a Leader: How to Change People Without Giving Offense or Arousing Resentment. The titles to the segments are fairly dull and suggest control as opposed to comprehension or bargain however the book stresses seeing things from the perspective of others and settling strife in commonly worthy manners. The accentuation of the book is training the abilities important to utilize the teaming up struggle style and conduct alteration. The main area, Fundamental Techniques in Handling People, has three standards. 1) Don't scrutinize, denounce or gripe; this is the most troublesome one to oversee. 2) Give legitimate, true appreciation. Everybody has some positive attributes. 3) Arouse in the other individual a craving to please. Utilizing these standards advance the capacity for the people to have an open, genuine discussion. This thusly makes a positive air for compromise. The six standards of the subsequent section are, Six Ways to Make People Like You, 1) Be truly inspired by others. 2) Smile at individuals. 3) Remember and utilize a pe... <!

The Best Subreddits for University Students

The Best Subreddits for University Students The Best Student Resources on the Internet The Best Student Resources on the Internet The vast majority of students at postsecondary institutions around the world are likely not fully aware of the range of student resources they have at their disposal, both on and off campus. While it is easy to Google queries and find answers to questions on the fly, crafty students understand that there are a wealth of resources on the internet which can, and should be consulted on a regular basis to make university life more manageable and enjoyable. Chances are, too, that if you are a university student you, like most people, are not immune to spending counterproductively large amounts of time on places like Reddit. Luckily, Reddit is not an inherent waste of time. It’s how you use and browse the site that makes all the difference. Below are some of the best subreddits you can subscribe to if you are a university student. Personal finance One of the biggest knowledge gaps in the world that can heavily dictate individual success, across cultures, is the financial literacy gap. Most people, if they are not completely financially illiterate, don’t really know enough to competently manage their personal finances. It’s not their fault. Most societies fail to make it a priority at either the secondary, or postsecondary level. The financial literacy gap, however, isn’t just a matter of forgone knowledge, it can translate into thousands of dollars for university students. If you are in the process of curating your Reddit home page, consider checking out the personal finance subreddit. Personal finance is subscribed to by over 13.5 million people, and contains troves of knowledge about how to make personal financial decisions, big and small. Many of the people commenting and responding to questions are experienced financial services professionals, or people who have already had to ask and answer the same questions in the past. It is a great resource to check up on daily, or even just when you have a finance question you need answered. Eat cheap and healthy Another great student resource on Reddit is the subreddit “Eat Cheap and Healthy.” Part of academic success comes down to how well you look after your mind and body. You can only push yourself so hard on substandard fuel and sleep before your body starts refusing to cooperate. If you know what you are eating is trash and, furthermore, if you are spending too much money on hollow calories (fast food is actually surprisingly expensive), check out this subreddit for meal tips. It might completely revolutionize how you think about eating and shopping while studying. Many people, especially students, are under the impression that university is about sacrificing your eating and dietary standards for four years for the sake of your education. The old familiar trope of university students eating packaged ramen noodles for breakfast, lunch, and dinner is still a popular one. But you can actually eat quite healthily on a budget if you know how to shop and what to make. This subreddit has great information and tips for doing so, and provides a lot of inspiration. Your school’s main or student resources subreddit Reddit has now become the third most popular website in the United States after Google (number 1, obviously), and YouTube. Reddit has real pop-cultural, political, and social influence, meaning that is has become an important part of most businesses and institutions’ online presence. If you go to a big, well-recognized university, and even at many smaller ones, there is a good chance they have their own reddit page. These are another category of good subreddits for students, and often act as supplementary student resources for people wanting to know what is going on around campus. They often contain threads about deals, or offers to be found on campus that might otherwise be poorly advertised, as well as information about events, rallies, protests etc. that are of consequence to student life on campus. It could also function as a way to meet like-minded people. If you find someone talking about something you find interesting, or are having a conversation with a fellow-student and it is engaging and seems to be going well, you can even send them a private message and ask if they’d like to meet for a coffee, or a beer, etc. Your area of study’s subreddit(2) Another great student resource to be found on reddit are subreddits that have to do with your area of study. The subreddit “Engineering,” for instance has 210,000 subscribers. The “Political Science” subreddit has 10,800 subscribers, the “Philosophy” subreddit has 13.5 million subscribers, and the “Ask History” subreddit has 22,900 subscribers. These are just a few examples of discipline-specific subreddits. These kinds of subs are great places to ask people questions (often scholars, or experts), get pointed in the right direction before you start an essay, or find information and inspiration if you are stuck on a topic. Additionally, there are writing services out there that can help you plan, or edit a paper if you feel it needs some extra love and care. If you don’t already have a profile on Reddit, they are anonymous and free to make, and allow you to interact with millions of people from around the world who are a wealth of new information and inspiration. Reddit is definitely one of the most helpful student resources out there. Whether you use Reddit on a regular basis for news and entertainment, or are completely new to the platform, there are so many great subreddits to add to your list of subscriptions that are truly helpful and beneficial to university students. Instead of spending all your time on Reddit consuming gossip and media that doesnt improve your knowledge, or make your life better and easier, think about ways to leverage the website’s immense potential to your advantage. Keep the above subreddits for university students in mind, and for all other academic and writing-related matters, reach out to Homework Help Global 24 hours a day, 365 days per year. References: Farrington, R. (2014). “The financial literacy gap costs college graduates thousands.” Forbes. Retrieved from: #7930ac694fb2 Desreumaux, G. (2018). “Sorry Facebook, Reddit is now the Third Most Popular Site in the U.S.” Wersm. Retrieved from: The Best Subreddits for University Students The Best Student Resources on the Internet The Best Student Resources on the Internet The vast majority of students at postsecondary institutions around the world are likely not fully aware of the range of student resources they have at their disposal, both on and off campus. While it is easy to Google queries and find answers to questions on the fly, crafty students understand that there are a wealth of resources on the internet which can, and should be consulted on a regular basis to make university life more manageable and enjoyable. Chances are, too, that if you are a university student you, like most people, are not immune to spending counterproductively large amounts of time on places like Reddit. Luckily, Reddit is not an inherent waste of time. It’s how you use and browse the site that makes all the difference. Below are some of the best subreddits you can subscribe to if you are a university student. Personal finance One of the biggest knowledge gaps in the world that can heavily dictate individual success, across cultures, is the financial literacy gap. Most people, if they are not completely financially illiterate, don’t really know enough to competently manage their personal finances. It’s not their fault. Most societies fail to make it a priority at either the secondary, or postsecondary level. The financial literacy gap, however, isn’t just a matter of forgone knowledge, it can translate into thousands of dollars for university students. If you are in the process of curating your Reddit home page, consider checking out the personal finance subreddit. Personal finance is subscribed to by over 13.5 million people, and contains troves of knowledge about how to make personal financial decisions, big and small. Many of the people commenting and responding to questions are experienced financial services professionals, or people who have already had to ask and answer the same questions in the past. It is a great resource to check up on daily, or even just when you have a finance question you need answered. Eat cheap and healthy Another great student resource on Reddit is the subreddit “Eat Cheap and Healthy.” Part of academic success comes down to how well you look after your mind and body. You can only push yourself so hard on substandard fuel and sleep before your body starts refusing to cooperate. If you know what you are eating is trash and, furthermore, if you are spending too much money on hollow calories (fast food is actually surprisingly expensive), check out this subreddit for meal tips. It might completely revolutionize how you think about eating and shopping while studying. Many people, especially students, are under the impression that university is about sacrificing your eating and dietary standards for four years for the sake of your education. The old familiar trope of university students eating packaged ramen noodles for breakfast, lunch, and dinner is still a popular one. But you can actually eat quite healthily on a budget if you know how to shop and what to make. This subreddit has great information and tips for doing so, and provides a lot of inspiration. Your school’s main or student resources subreddit Reddit has now become the third most popular website in the United States after Google (number 1, obviously), and YouTube. Reddit has real pop-cultural, political, and social influence, meaning that is has become an important part of most businesses and institutions’ online presence. If you go to a big, well-recognized university, and even at many smaller ones, there is a good chance they have their own reddit page. These are another category of good subreddits for students, and often act as supplementary student resources for people wanting to know what is going on around campus. They often contain threads about deals, or offers to be found on campus that might otherwise be poorly advertised, as well as information about events, rallies, protests etc. that are of consequence to student life on campus. It could also function as a way to meet like-minded people. If you find someone talking about something you find interesting, or are having a conversation with a fellow-student and it is engaging and seems to be going well, you can even send them a private message and ask if they’d like to meet for a coffee, or a beer, etc. Your area of study’s subreddit(2) Another great student resource to be found on reddit are subreddits that have to do with your area of study. The subreddit “Engineering,” for instance has 210,000 subscribers. The “Political Science” subreddit has 10,800 subscribers, the “Philosophy” subreddit has 13.5 million subscribers, and the “Ask History” subreddit has 22,900 subscribers. These are just a few examples of discipline-specific subreddits. These kinds of subs are great places to ask people questions (often scholars, or experts), get pointed in the right direction before you start an essay, or find information and inspiration if you are stuck on a topic. Additionally, there are writing services out there that can help you plan, or edit a paper if you feel it needs some extra love and care. If you don’t already have a profile on Reddit, they are anonymous and free to make, and allow you to interact with millions of people from around the world who are a wealth of new information and inspiration. Reddit is definitely one of the most helpful student resources out there. Whether you use Reddit on a regular basis for news and entertainment, or are completely new to the platform, there are so many great subreddits to add to your list of subscriptions that are truly helpful and beneficial to university students. Instead of spending all your time on Reddit consuming gossip and media that doesnt improve your knowledge, or make your life better and easier, think about ways to leverage the website’s immense potential to your advantage. Keep the above subreddits for university students in mind, and for all other academic and writing-related matters, reach out to Homework Help Global 24 hours a day, 365 days per year. References: Farrington, R. (2014). “The financial literacy gap costs college graduates thousands.” Forbes. Retrieved from: #7930ac694fb2 Desreumaux, G. (2018). “Sorry Facebook, Reddit is now the Third Most Popular Site in the U.S.” Wersm. Retrieved from:

Communication Audit - 4023 Words

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Furthermore, this report pays attention to formal and informal communication practices within teams. Johnson et al. (1994) defined formal and informal communication, while the audit goes one step further and analyse the pros and cons of the two models within the limits of our study and provide suitable recommendations. The audit was approached in three stages. Initially the audit critically analysed the mission statements and appraised the same. The next step proceeded by conducting in-depth interviews of two department heads and a subordinate employee to identify the gaps in communication. Also as secondary analysis we monitored the behavioural attributes of the employees. Later in the audit various ‘gaps’ were analysed and suggested recommendations that on implementation can fill these gaps. 2. 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The First Stage Is The Norm Of International Human Rights...

The first stage is the norm emergence. Norms emerge when they are actively promoted by actors with strong notions and an agenda of appropriate behavior – norm entrepreneurs. According to Hoffman, the entrepreneurs attempt to persuade other actors with the accordance of a certain norms or ideas which the entrepreneurs believe. Needless to say, the Universal Declaration of Human Rights drew on notions articulated in the 18th century: in American Declaration of Independence (1776) and the French Declaration of Rights of Man and of the Citizen (1789), and other bill of rights, and the constitutional experience of the United States was a major influence on the development of international human rights. The U.S. and other Western states are the human rights norm entrepreneurs who promote the prevalence of the individual rights around the world. During 1977 to 1981, when Jimmy Carter became the President of the United States, the Carter administration articulated and implemented a human rights strategy that would serve as the cornerstone of Carter’s foreign policy. In the Western Europe, Norway and Netherlands were becoming more activist in promoting human rights in their own foreign policies. After 1993, respecting for the human rights had been a condition for the European Union (EU) membership. The norm of human rights sprawled to democratic states quickly and the behavior of the U.S. and those Western states had the great international as well as the domestic influence.Show MoreRelatedThe Mdgs Are Norms Or National Economic Planning Targets?980 Words   |  4 Pagesthe MDGs are norms or national economic planning targets. 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A Vast Improvement in Oneself Free Essays

Many students today ask why they are so tired all the time. It also seems that people in college become more stressed out either because of grades or because of work. All people need to do is get the right amount of sleep, eating well, and exercise in order to feel better about themselves and feel good in general. We will write a custom essay sample on A Vast Improvement in Oneself or any similar topic only for you Order Now This is not a short process. Most experts say that it takes about twelve weeks in order to see results. But, it is guaranteed that after that duration of time one will see a vast improvement in oneself. Sleep is something that most people take for granted. It is the one thing that people are willing to compromise even more then food or money. It is estimated that between 40 to 60 million Americans are sleep deprived. Different people can get by with different amounts of sleep. There are some that can survive the next day with only a few hours. Then there are always others who cannot be called after 9:00 because they need those good solid 10 hours. The average person actually needs anywhere from between 7-9 hours a night. Why does one need sleep? When human bodies do not get enough sleep they tend to lose strength, the immune system decreases, and there is an increase in blood pressure. As students, it can effect concentration, memory, logical reasoning, and ability to do math. Now that the problem is known here is how to fix it. Dr. Stanley Coren, a professor of psychology at the University of British Columbia, focuses on consistency. The body needs consistency. This can be fulfilled by simply going to bed at the same time every night and waking up at the same time every day. But, it is important to note that making up for lost sleep on the weekends is a big negative. It is preferable that if one likes to sleep on the weekends wake up at the same time Saturday and Sunday. When going to bed it should take about 15 to 20 minutes to fall asleep. If a half-hour has gone by and one still is not asleep one should get up and do something relaxing (i. e. take a warm bath, read, watch TV, etc. ). Rita Mattson, a Certified Personal Trainer and Stress Management Counselor, makes the suggestion of drinking warm milk before retiring to bed because milk contains a high dosage of L-tryptophan which is a natural sedative. Sleep is just as important as any other part of taking good care of ones self. Another key aspect is nutrition. Nutrition is the main thing that keeps the body working. So, if one wants to keep the body working at a certain pace it needs to be fed. But, one needs to know the right foods. Think of the body as a car. People drive cars every day and some people are fast drivers who like to go above the speed limit and others are slower. Nevertheless, all cars need gas sooner or later. So, the owner of the car takes the car to the gas station and now he needs to make a decision on which type of gas to put into the car. He knows that he cannot use diesel because his car cannot run on diesel gas. The choices are now unleaded, super unleaded, or supreme unleaded. Every car driver knows that the better quality of the gas the better the car drives and performs. Bodies are the same way. Know not to use â€Å"diesel. † But, when it comes to the other â€Å"gases† one has to think what does the â€Å"car† need to perform its best. For that reason, there is the nutrition pyramid to tell us what our bodies need the most and the least of. It is important to incorporate refined carbohydrates, proteins, vegetables, and fruit to ones diet everyday to ensure that the body works. The body also needs some sugar and fat. Today, people focus on â€Å"non-fat† foods. Sometimes these are not good for the body because in order to make something natural fat-free you have to put in chemicals to alter the original make up of the food. Chemicals are difficult for you body to digest therefore in a case like this it is best to go natural. Another reason that one needs to eat some fat and sugar is because this is what the body burns when you exercise. Exercise is what â€Å"separates the boys from the men. † In other words this is the number one thing that must be done to maintain a healthy body. First, one needs to know their body and what their body can endure. That depends on age, weight, and current level of fitness. The last factor determines how fast ones body burns fat. Second, figure the basal metabolism rate (BMR). The formula for that, according to Margaret Deutsch, is for adult males: weight in pounds times 12; for females: weight in pounds times 11. Also, for every 10 years older than 20 one should lower the result by 2%. Next, understand that different programs work for different people. People tend to go by the fad when it comes to picking an exercise program. Do some shopping around to see which exercise is not only fit for you but also is something that you will enjoy. Aerobic exercise is an example. Aerobic exercise is exercise, which essentially uses aerobic pathways to provide energy to the muscles involved. It is sometimes called a â€Å"endurance exercise† which means that the heart rate is raised to 70 to 85% of your age predicted Maximum Heart Rate (MHR), and held at that point for a uninterrupted 20 to 30 minutes. Another example is weight-bearing exercises. This includes picking up weights that are a portion of your body weight. To remain in shape one does not have to do a lot of it but one should do some. It is important in any type of exercising to avoid injury to the body from stretching before exercising to wearing the correct clothing. Civilization tends to be aware of the former but ignore the latter. Sports bras are a common example of women hypocritingly exercising and at the same time injuring the body. Skin and ligaments (elastic connective tissue) provide a delicate support frame for the breasts that can be damaged by too much bouncing and stretching. There are two types of sports bras: compression bras and encapsulation, harness-type bras. The first works better for smaller breasted women because of the fit and the second tends to work better for larger women. When choosing the correct one for you take into account: the fit, how much support it is giving for the exercise that is going to be done, fabric (does it absorb moisture well), seams and stitching to avoid chaffing, and mobility. After taking all these into account one can be assured that he is well prepared for the exercise routine. In conclusion, all the factors mentioned above can lead to a less stressful life. Sleep can help the body relax to deal with everyday pressure. People who eat a diet low in refined carbohydrates, sugar and caffeine, and high in whole grains, have shown a greater ability to cope with stress as in contrast to those who consume the opposite. Exercise, as well, is a way to release stress and tension (i. e. running, kickboxing, stair stepping, etc. ). If one keeps all the factors in mind a healthier happier life can be achieved. How to cite A Vast Improvement in Oneself, Essay examples

Romeo Juliet Essays (594 words) - English-language Films

Romeo Juliet Romeo Juliet Romeo and Juliet is one of Shakespeare's plays about tragedy. It is about two lovers who commit suicide when their feuding famillies prevent them from being together. The play has many characters, each with its own role in keeping the plot line. Some characters have very little to do with the plot but some have the plot revolving around them. Friar Lawrence does not have very much time on stage but the time he does have is crucial to the plot line. Through his words Friar Lawrence demonstrates the he is a good intentioned, yet sometimes short-sighted, man who is not afraid to take risks to help others One of Friar Lawrences most favourable traits is how good intentioned he is. He may do something out of the ordinary if he thinks the outcome will help someone he cares for. For example, when he says "In one respect I'll thy assistant be; for this alliance may so happy prove, to turn your households rancour to pure love."(Act 2, Scene 3), he is saying that the only reason he will marry Romeo and Juliet is because he hopes that the marriage will end the hostilities between the two houses. When he says "Shall Romeo by my letters know our drift, and hither shall he come; and he and I shall watch thy waking, and that very night shall Romeo bear thee to Mantua." (Act 4, Scene 1), he tells Juliet how everything will be all right. Unfortunately, for all his good intentions the play still ends in tragedy. Friar Lawrence is a man who is not afraid to take risks when he feels it is neccesary to help someone. For example in Act 2, Scene 6, when he marries Romeo and Juliet, he is risking his reputation as a Friar so he can help the two lovers. Also, when he says "Take thou this vial, being then in bed, and this distilled liquor drink though off;" (Act 4, Scene 1), he is suggesting that Juliet drink a potion so that she might feighn her own death and avoid marrying Paris. This is an extremely risky thing to do because anything might happen to Juliet while she unconscious. Even after all Friar did to help Romeo and Juliet the play still ended in tragedy because of Friar Lawrences' short sightedness. When the Friar married Romeo Juliet in secrecy, he did not think of all the complications that would arise but instead went on with the marriage because at that time he thought it was the right thing to do. In Act 4, Scene 1, he gave Juliet a sleeping potion without thinking of the possible outcomes of such an outrages plan. He admits that much of the fault of the tragedy lies in his hands when he says "And her I stand both to impeach and purge myself condemned and myself excused", and when he say "Her nurse is privy; and, if aught in this miscarried by myself..." (Act 5, Scene 3). Although Friar Lawrence does not have an especially large role, his role is none the less important. It is because of his good intentions that he was willing to help his friends that Romeo and Juliet were married - a key event in the play. It is because of his willingness to take risks for his friends that Juliet aqquired the sleeping potion - another key event in the play. Finally, it was the shortsightedness of his actions that in part led to the deaths of the two lead characters. This demonstartes that Friar Lawrence was a man who was a man with good intentions who was willing to take risks to help his frieneds. If he had been any other way, the play might not have turned out the way it did.

Gung Ho Retraction essays

Gung Ho Retraction essays The Japanese are very company oriented in their management style. They have a strong pride when their company does well. They believe that American car industry would be as successful as the Japanese if our workers were willing to work for $8 an hour, seven days a week, with unpaid overtime, just because of their patriotic pride Americans view the Japanese as workaholic freaks. The Japanese expect the Americans to behave like Japanese. The guys are so happy to have jobs that they're non-union. American management believes in okay work with excellent pay. They work as a team to reach goals and work 8 hours a day and leave time for life outside work. The Americans get restless when they're not given sick leave, asked to work free overtime, and constantly get shouted at by Japanese managers. They complain to their union representative. The American workers are a crowd that apparently hangs out together all of the time, 24 hours a day, so that a Fourth of July celebration can be turned into a workers' meeting and nobody is absent? Hunt was yelled at during a workers meeting. Hunt does a great deal of double talk between the Japanese and the Americans. He promises them Americans a raise if they reach the quota of 15,000 cars. And a partial raise with 14,000 cars. When the factory fails to produce the 15,000 cars they want a raise but do not get it. The union helps the American workers keep their jobs with fair pay and time off. It helps keep the Gung Ho Japanese managers from abusing the workers. The union fights for paid overtime, weekends off, sick leave, and better pay. ...

Commercial Drivers License Guide New York, New Jersey, and Connecticut

Commercial Drivers License Guide New York, New Jersey, and Connecticut If you live in New York, New Jersey, or Connecticut, learn the guideline for getting your Commercial Driver’s License (CDL) below. For information regarding other states, TheJobNetwork has published a very comprehensive guide on how to apply for a CDL in all states. New YorkTo apply for a Commercial Driver License (CDL), you must have a New York state driver license (Class D, Class E, or Non-CDL C) or a valid CDL from another state.  When you apply for an original NYS CDL (Class A, B, or C) you must:Certify you have not held  a driver’s license in any state except New York or in the District of Columbia in the last 10 years orReport every state (or the District of Columbia) where you have held a driver’s license in the last 10 yearsProve your legal presence in the United StatesIf you are not U.S. citizen or a lawful permanent resident, your CLP or CDL document will have â€Å"NON-DOMICILED† printed on documents issued on it. The â€Å"TEMPORARY VISITO R† and the expiration date of your legal status documentation will continue to be displayed on the CLP and/or CDL document.The DMV will check for any open suspensions or revocations you may have in any state; your application will be rejected if you have an open suspension or revocation.What do I need to do to get a CDL?Obtain the New York State Commercial Driver’s Manual (CDL-10), which will have a section covering the type of CDL you need describing the classes, restrictions, and endorsements of CDLs.Apply for a CLP  at a DMV office. You must pass the written CDL test for your vehicle. There is $10.00  application fee, which allows you to take all written tests (knowledge and endorsement) required for your desired permit and license. There is a $40.00 fee to take the CDL road test (skills test), which you must pay before you can schedule your road test.Prepare for your road test and practice with a supervising driver who has a license valid to drive the commercial motor vehicle you use for practice.Schedule your road test using the Road Test Scheduling System; you must wait  at least 14 days from  being issued a CLP. If you do not pass the road test, you must pay $40.00 before you can schedule another road test.The following CDL restrictions may affect CLP holders taking a Skills Test in a vehicle without full airbrakes and/or a manual transmission:E- No Manual Transmission Equipped CMVL- No Airbrake Equipped CMVZ- No Full Airbrake Equipped CMV restrictionsIf the vehicle used for your skills test has:An automatic transmission, and CDL, and this is your first road test in a commercial motor vehicle (CMV), you will be given an E restriction.No form of airbrakes and this is your first road test in a CMV, you will be given an L restriction.Air over hydraulic brakes and this is your first road test in a CMV, you will be given a Z.If you have a CDL with an L restriction and you test in a vehicle with air over hydraulic brakes, you will be upgr aded from an L to a Z restriction.New JerseyCDL RequirementsBe at least 18 years oldHave a basic  New Jersey driver license  (Class D)Have 20/40 vision in each eye (with or without glasses)Be able to recognize the colors red, green, and amberBe physically fit.  Federal law requires commercial drivers to carry a medical examiner’s fitness statement at all times and renew it every two years.Application ProcessAfter preparing for the exam, you will   visit your local MVC Agency. You will be asked to:Pass the 6-Point ID VerificationPresent a Social Security card for an initial commercial permitPay $125 CDL permit fee (non-refundable)Take the CDL knowledge test and the CDL road test, as requiredNote: CDL applicants under 21 years old may only travel within New Jersey and may not receive HAZMAT or passenger endorsements.ExemptionsThe following do not need a CDL:  Taxi drivers (carrying less than eight passengers) and ride-sharing van driversFirefightersOperators of rescue or first-aid squad vehiclesFarmers hauling their own products and equipment within 150 miles of their farmsNon-civilian operators of military equipmentOperators of construction equipment not designed for operation on public roadsOperators of recreational vehicles, provided the vehicle is being operated only for personal useConnecticutThe Connecticut road test includes pre-trip inspection, an off-road course, and a road test.To  obtain a Connecticut CDL, you must  complete a written exam. The written exam is given on a walk-in basis at select DMV offices.  To prepare ,   study the  Connecticut Commercial Vehicle Operator’s Manual.You will need to bring the following items with you to the DMV office on your testing day:A CT driver’s licenseA  Social Security card or your most recent W-2 form.A physical examination dated within the last 2 years, reported on by a physician on an  Examination to Determine Physical Condition of Driver form  or a  Medical E xamination Report  (Form 649-F)A completed  Application for Commercial Driver’s License  (Form CDL R-229a).Printed confirmation of notice of self-certification with the DMV

Managerial Applications of Technology (Business Intelligence and Assignment - 1

Managerial Applications of Technology (Business Intelligence and Knowledge Management) 2 - Assignment Example The computational power increase enables more data handling, and faster response and resolution of the problems and queries. The two are mere advancements of the field of technology made possible through the business intelligence support system. The impact of these two functions is rapid delivery rates and increased participation of the employees in the working procedures. These three variables work in a complementing manner towards one another. The possible costs of this massive expansion could be the need for establishing maintenance costs. Training the employees to work on the state of the art technology based networks is another constraint. Possible appearance of bug in the network may be another cost and constraint (Levinson, Bell, & Liu, 2011, p. 194). More data nearly always means better decision making. Since it allows clear litmus like test of the performance, achievements and the dates and objectives missed in the quantitative terms. Hence it can be easily advocated for that the data expansion and using business intelligence systems always pays dividends in the form of improved performance, self assessment and better employees understanding (Quintero et.al, 2010). Donovan, F. (2013, Feb 20). Gartner: Microsoft, Oracle, IBM lead BI and analytics market. Retrieved from fierceenterprisecommunications: http://www.fierceenterprisecommunications.com/story/gartner-microsoft-oracle-ibm-lead-bi-and-analytics-market/2013-02-20 Levinson, D., Bell, M., & Liu, H. X. (2011). Network Reliability in Practice: Selected Papers from the Fourth International Symposium on Transportation Network Reliability. Springer Science & Business

Civil War in Georgia Essay Example | Topics and Well Written Essays - 500 words

Civil War in Georgia - Essay Example There were reduced start-up costs for the civil war due to the accessibility of weapons from the Soviet and a ample number of volunteer fighters. In March 1992 and Kitovani was made the Minister of Defence- with this authority, Kitovani then organized the Abkhazia war in order to establish control over the transportation networks and valuable tourism industry of the province. In the end though, there was a total collapse of the informal and formal economy in 1993 which made it impossible to supply the troops effectively and that led to poor organization of military campaigns. Finally, Mkhedrioni and the National Guard were defeated whereas there was destruction of the economic assets they were fighting for. Due to the wars, Georgia lost control over a considerable part of its territory which remained an important difficulty for the nation's state building process as the government is not capable of controlling the smuggling business originating from the two regions. Georgia thus faces a dilemma- if it sets up customs points behind the lines of control, it would advance to identifying them as a border, which is politically unacceptable. On the other hand, if it would not do this, goods will continue to enter tax free into the nation and thus help crime networks and tainted state officials who are proving to be an obstacle in the state building process.

Spice Mobiles: Sales and Distribution Strategy

Spice Mobiles: Sales and Distribution Strategy Indian wireless sector has been an epitome of growth and success story all along as the cellular subscriber base increased from 1.9 million as on March 31, 2000 to 584 million as on March 31, 2010. As the sector has matured, the baton of growth has been passed-on to novel concepts such as Telecom Infrastructure Companies (commonly known as the tower companies), Value Added Service providers (popular application being Caller Ring Back Tone-CRBT) and more recently the home-grown Mobile Handset (HG) players. The Indian Mobile Handset Market is dominated by established international brands such as Nokia, Samsung, Motorola, LG etc. Nokia has been a clear market leader followed by Samsung, a distant second. There has been a continuous jostle for the third position with players like Motorola, Sony Ericsson, LG vying for the spot. Apart from the braded cell-phones, the market is also flushed with cheap, unbranded imported mobile phones that get routed through grey markets to reach domestic consumers (most of these unbranded mobile phones, hitherto, were without any International Mobile Equipment Identity (IMEI) numbers). When mobile phones were introduced in India in the mid-90s, US based Motorola, Swedens Ericsson and Finlands Nokia dominated the handset market in India. Over the years, the old order has changed. Asian players like Samsung and LG, European brands Philips and Siemens now compete with Motorola and Sony-Ericsson. Now with the emergence of local players like Micromaxx, karbonn and Spice etc., the competition has got all the more intense and the fight for consumers pocket has increased. Nokia, the undisputed leader is now challenged by local players like Micromaxx which has replaced Samsung to become the third biggest mobile selling vendor in the country. If we look a bit deeper, its not only the price or technology, but the reach of these new players in terms of distribution that has given them such a big chunk of the market and that to so soon! HOME-GROWN MOBILE HANDSET PLAYERS Given the backdrop of the growth in the domestic wireless subscriber base coupled with no dominant mobile handset player in India apart from the international brand, Nokia, provided business opportunity for Indian firms to take a plunge into the market; thus, the creation of HG players including Spice Mobiles, Micromax, Karbonn, Lava, Videocon etc. The business model followed by most HG players is relatively simple. These players have research and innovation teams that provide India-centric design specifications to contract manufacturers in neighbouring countries of China, Taiwan etc. These phones are shipped to India which are then routed through the domestic distribution channel for sale in the domestic market. Time-to-market from design-to-production-to-end market is critical in this sector as such players have set-up three-layered distribution system that includes regional distributors to support micro-distributors that in turn service the retail outlets. The initial part of the success of HG players was largely attributable to the price-elasticity of demand prevalent in the Indian market. These players provided phones loaded with various features at an affordable price. Other key aspect of the strategy followed by these players was to initially tap the rural markets where consumers are relatively less brand conscious and more price conscious. We believe it was not just the price differential that made these players tick; the home-grown players provided innovative offerings to rural markets (such as multi SIM handsets, mobile phones with 30-day battery back-up) that provided value-for-money rather than mere price-differential a key success mantra to tap the fortune at the bottom-of-the-pyramid. (Hitherto, the key market segment for these players) The inflection point for the growth of HG players in the recent times also came from the directive from the Government of India to bar handsets without IMEI numbers to be used in India. These handsets were a direct competition to the HG players and a ban on them provided huge growth opportunities for these players. Encashing on this opportunity, the HG players have grown from strength-to-strength and are slowly but surely cementing their place in the Indian Mobile Handset market. Attuned to its primary market segment i.e. Tier-I and Tier-II cities, the marketing by HG players were hitherto more of the push-strategy whereby greater pass-through margins were given to Distributors and Retailers. However, off-late they have also initiated the use of pull-strategy by venturing into brand building initiatives such as roping-in of brand ambassadors and sponsoring of sports tournaments. We see these initiatives as a prelude before venturing into more lucrative urban markets. However, going f orward the HG players shall have to contend with various challenges such as to constantly invest on innovation and brand building; to build and strengthen their distribution network after-sales services; to move-up the value chain both in term of technology (providing 3-G Technology, QWERTY format phones) and markets (from Tier-II/ Tier-III segments to Urban markets) and to counter direct competition from Chinese players who are looking to set-up shops in India. Here in this study, we will discuss the key distribution strategies and challenges of one such home grown player Spice Mobile. A DIFFERENT DISTRIBUTION MODEL The distribution of mobile phones varies considerably from that of other consumer electronics and appliances such as LCD TVs or Air conditioners. This is because the pace of sales of mobile phones is a lot faster than the other consumer electronic goods. Also, the physical size of the products also is a factor. The mobile phone, being a quite fast moving product, hence is not handled by the distributors handling TVs and audio products or washing machines and refrigerators. Hence the supply chain management and logistics management of the two products distribution becomes very different. The great Indian mobile revolution is all set to move to the rural part of the country, with handset manufacturers gearing up to come out with market-specific products to acquire maximum share. The next big opportunity for telcos will be in the hinterland where two-thirds of the countrys 1.17 bn population lives.There are many factors driving handset manufacturers and operators to the rural market. Th ough India is emerging as one of the biggest telecom markets, metros and tier-2 cities are already reaching saturation point. Hence, companies have no option but to explore newer markets to sustain the growth. As of now, India is adding around 9 mn subscribers a month, and in June 20010 the country added 11 mn subscribers. E.g. if we look into Samsung Indias distribution chain, we find that every Samsung product other than the mobile phone (and IT products, which again has a different distribution chain) are distributed by the same wholesaler. For mobile phones, there is a totally different Distribution. This is a result of the above two major factors (pace of sales and physical size of product). Example: Distribution of mobile phones by Samsung The Distribution of Samsung mobile phones is divided by zones primarily. This strategy is more or less similar for all major mobile phone manufacturing companies. The northern region, comprising Jammu and Kashmir, Punjab, Haryana, Himachal Pradesh, Uttar Pradesh, Delhi, Uttarakhand and Rajasthan, have four distribution partners for Samsung Mobile. Now for better reach and response to consumer demands and to cater to them efficiently Samsung are looking to add five more distribution partners to the Northern Region. Samsung has recently strengthened its distribution network in the country by appointing SSK and Link as its distributors for mobile sales in the Western and Eastern part of the country, respectively. The company already has Telemart and United Telelinks as its distributor in the Northern and Southern parts of the country. There are usually two distributors between the company (Samsung Mobile) and the retailer. E.g. there is a chief distributor for the products for the western zone. Under that distributor, there are other wholesalers for the mobile handsets which are usually for particular cities in case of cities with considerable size and market. E.g. Ahmedabad has two distributors which supply to the retail firms in the city. While some of the smaller cities/towns have a distributor in common. Also, some of the premium retail firms might buy directly from the chief distributor (only if the quantities justify it). Example strategy: Franchisee retailers Also, Franchising Strategy for some companies has also helped in driving sales and profitability. E.g. Nokia Priority franchisee showrooms. Nokia has setup priority dealers to boost growth in organized trade. The following have been the benefits for Nokia as a result of the success in franchisee retailing: Positive brand experience across segments in a controlled environment Channel drives retention for Nokia Win the war before the battle Positive retail experience drives higher avg. selling prices Harnessing entrepreneurship spirit of franchisees Retail space investment by franchisee Nokia drives location selection, branding merchandizing support, media support Tackles fakes effectively The Value contribution to Nokia by Nokia Priority dealers in 2007 was around 10% of the total revenue generated by Nokia in India. It is expected to be around 20% by 2010. A TYPICAL DISTRIBUTION CHANNEL FOR MOBILE HANDSET VENDORS Consumer Manufacturer Mobile Devices National Distributor RDS Retailer/ Key Account When we contacted retail outlets like Hotspot, The mobile store, which comes right before the end user in the distribution system, they gave us similar details regarding the channel members which are above them for various hand set providers. This information was further substantiated by visiting the redistribution stockists of companies like nokia, samsung, LG, spice etc. However, although the above structure is pretty common in industry, the Indian players like Spice, Micromax etc have gone away with the concept of national distributor. We will discuss the implications of this decision by taking Spice Mobile as our information source. INDUSTRY LEADER: NOKIA DISTRIBUTION CHANNEL Nokia India(ND) HCL India(ND) Bright point India(ND) GSM Handsets South and west India GSM Handsets North and East India Margin 3.5% CDMA Handsets National Distributor Margin 3.5% Redistribution Stockist Pan India 150 Nos Margin 2.2% South and West India 90-100 Nos(Urban+rural) Margin 2.2% Redistribution Stockist Redistribution Stockist North and East India 90-100 Nos(Urban+rural) Margin 2.2% Micro Distributor(Rural) 500 Nos Margin 3% Retail Outlets (includes Telecom Outlets, Electronics Stores, Nokia Priority Dealers, Key Accounts, Modern Trade, Operator Stores) 100,000 nos. (Nokia has a numeric reach of 99% and a weighted reach of 99% Margin 3-5% TRANSPORT OF GOODS: STRUCTURE NOKIA This is the flow of goods from the production/assembly units in china and Malaysia to the end user. For Nokia, central warehouses are located in Mumbai, Chennai and Delhi, which then transfer handsets to regional warehouses, typically 1 in each state. From these regional warehouses, handsets are then transferred to the redistribution stockist wherein the actual sales to retailers happen mostly on ready stock basis. SALES TEAM STRUCTURE: NOKIA For Nokia, the last level in its sales force is Area sales manager. Earlier, they used to have sales officers and sales managers under nokias direct control and pay scale but now these two profiles have been shifted or in some cases omitted to/by distributor. Sales executives, ISDs all are on the pay scale of distributors. SPICE MOBILE: DISTRIBUTION CHANNEL STRUCTURE After sales Support Centralized Repair Center Modern Trade State/Regional Distributors Located in Delhi Company operated request center Directly by Spice Mobile Dedicated sales team at regional level Margin 6-7% Pan India 56 Nos (state wise) Margin 2.2% Micro Distributor (RDS) 500 Nos (Tier2, Tier3 cities) Margin 6% Authorized regional repair center (ARC) Central distribution and collection center for parts and faulty handsets 32 (in each state) Authorized service center (ASC) Multi brand service centres Total 76 in number across India Retail Outlets (includes Telecom Outlets, Electronics Stores, Hotspot Dealers, Key Accounts, Modern Trade, Operator Stores) 50,000 nos. Margin 3% atleast rest depends on consumers bargaining As opposed to other competitors, the differentiating factor about spice distribution chain is the removal of one layer in the distribution chain, namely the national distributor level. They distribute their products directly to regional distributors, who in turn distributes to the micro distributors and then, to retailers. Micro distributors provide the extensive reach to them as they have strong presence in the rural areas/villages where they operate. The key advantage of operating such a structure according to our discussion with Spice sales team is the margins that the national distributor makes, which can be passed down the chain to the regional distributors and retailers. This results in higher profitability for channel partners ie. regional distributors, micro distributors, retailers, which in turn results in them being more aggressive in promoting the Companys products to its customers. The entire warehousing and distribution management has been outsourced with effect from 31st October, 2005 for the period of 5 year to AFL Logistics, a division of AFL Pvt. Ltd. (AFL), one of the logistics management companies in India, which is responsible inter alia for shipment of goods to regional distributors through its controlling warehouse based in Delhi. KEY PARTICIPANTS IN DISTRIBUTION CHANNEL: ROLES AND RESOURCES Now lets discuss in details the various function of channel members Company: Spice mobile manufactures the goods in Himachal plant or assembles them once procured from China and send the same to the distributors. The logistic partner (AFL) assist the company in the same. The company does the negotiations and promotion activities on its own. The credit and payment policies are also handled and negotiated between the company and distributors. Also company directs certain promotions to retailers. Regional Distributors: Ownership is transferred once invoice is generated by spice to state/regional distributors. They transfer the products from company to distributors. They basically take order form the distributors and provide them with the products. They bear risk and negotiations are also handled by them. These parties absolve company from appointing more personnel and funds for the activity of mere transportation and inventory holding from warehouse to the distributor. Micro Distributors: They are the primary buyer of company. The sharing of information, risking and payment are carried out between regional distributors and distributors and then between regional and company. Distributors provide market coverage to the company also create orders. In Spice mobile, promotion activity is carried out by distributors. Retailers: They usually undertake all the functions and transfer the physical possession and ownership to customers. They usually only perform promotion along with company, for rest of the function they interact with distributors. They act as the final source of information and payment to the company. Members Regional distributors/Stockist Stockist / Micro Distributor Retailer Role Involved in the business of re-distribution to authorized micro distributors Responsible for warehousing, transport of goods to next tier and payment collection May be non-exclusive, but have separate set-up for each business Involved in the business of re-distribution to wholesalers and retailers May be exclusive to the business Includes all classes of retail outlets Involved in counter sales and not in the business of redistribution Not required to be exclusive to the business Resources High financial strength with ability to hold stocks Infrastructure Office, IT capability, godown space High financial strength with ability to hold stocks and provide credit in the market Infrastructure IT Limited spend on localized sales promotion Appropriate store location and size SALES TEAM STRUCTURE: SPICE ISSUES IDENTIFIED IN SPICE SALES AND DISTRIBUTION Multiple Micro distributors in a given territory Having multiple distributors in a territory can spell problems for the company because when two or more distributors supply to the same retailer it can cause disputes. Also the distributors do not pledge loyalty to the company. This problem is faced in dense markets like NCR where distributors are very closely located. Like in Gurgaon sector 14 market, spice distributor itself is doing retailing as well although there are other retail stores in the market whom he himself sell! There is a clear limited control over distribution; i.e. spice people cannot take action against any non performer or in some cases high performer doing some leakage in the system. The company does not have any MIS at the distributor level The company does not have any MIS at the distributor level where it can measure the sales done by the distributor. The distributors have their own software in which they fill in their sales of a period and send it to the company. Thus secondary sales are not captured frequently and spice is dependent on distributor for this data. It seems spice is not at all interested in tracking the final sales. There is no clear cut liability of goods damaged in transportation As told by the distributors, there is no clear cut rule for the liability of the goods damaged in transportation. Sometimes it is borne by the company and sometimes by the distributor. But if the value of the damaged goods is significantly high, it can result in a conflict between the company and the distributor. No exclusive retail stores to capture urban markets Spice has a very strong presence in tier 2 and tier 3 towns. But, in metros and tier 1 cities they fall way behind Nokia, Samsung etc. One reason is that spice on mobile store, Hotspot doesnt work on exclusive spice model but carry a full range of competitor products. Thus to capture the interest of urban consumer, apart from new higher end models, spice also need a strong independent stores more in the lines of Nokia priority dealers as part of its distribution network. No dedicated sales force to monitor distributor As per our discussion with Spice distributor and Spice sales team, sales person or ISDs are on a pay scale of State distributor. Although their targets and region is set by distributor, sometimes with the help of Area sales manager, since ASM does not have any ownership of sales force, all push efforts and execution of sales plans cannot be tracked to a definite level.

Work Roll Consumption

Reduction in Work Roll Consumption of Skin Pass Mill Using six sigma-A case study A Thesis Submitted to the Ranchi University in partial fulfilment of the requirement for the award of the degree Of Master of Science Engg. In PRODUCTION MANAGEMENT By CHANDRA PRAKASH ROLL NO: 20/M/PM/2002 Under the guidance of Mr K. D. P. Singh Lecturer Department of Mechanical Engineering [pic] MECHANICAL ENGINEERING DEPARTMENT NATIONAL INSTITUTE OF TECHNOLOGY, JAMSHEDPUR September -2008 MECHANICAL ENGINEERING DEPARTMENT NATIONAL INSTITUTE OF TECHNOLOGY, JAMSHEDPUR RANCHI UNIVERSITY CANDIDATE’S DECLARATION I here certify that the work which is being presented in this thesis entitled â€Å"Reduction in Work Roll Consumption of Skin Pass Mill using six sigma-A case study† in partial fulfilments for the award of degree of Master of Science Engg. In Production Management, & Submitted in the Department of Mechanical Engineering NIT, JAMSHEDPUR is an authentic record of my own work carried out under the Supervision of Mr K. D. P Singh Lecturer, Department of Mechanical Engineering. National Institute of Technology, Jamshedpur. The matter embodied in this thesis has not been submitted by me for the award of any other degree. Signature of candidate This is to certify that above statement made by the candidate is correct to the best of my knowledge. Mr K. D. P Singh Lecturer Mechanical Engineering Department NIT, Jamshedpur Dr J. N. Yadav Professor & HOD Mechanical Engineering Department Signature of internal examiner Signature of external examiner ACKNOWLEDGEMENT First of all I would like to express my gratitude to Mr. C. M. Verma Head, BAF/SPM/ECL Cold Rolling Mill, Tata Steel for allowing me to be a owner of this case study matching to my area of work where I could really apply and develop my technical skills in practical aspect. I am extremely grateful to Mr K. D. P. Singh (Lecturer NIT, JSR), Mr Vivek (Sr Manager, BAF & Six sigma Co-ordinator CRM), and Mr. Dharmendra Kumar (Manager Roll shop) for guiding this case study. They have guided me at every step, clearly explained the objectives, the problems statements, technical concepts and terminology to make my case study a success. They always extended a helping hand and spent their valuable time to explain the problems that ever obstructed my path. Working in Tata Steel has not only been a learning experience on technical aspects but there were many other things, which could only be experienced in organization of such repute. Their work culture, discipline, employee’s devotion towards their job and company are extraordinary. Thanks a lot to all those who helped me directly or indirectly during the completion of this case study and special thanks to the associates of Skin Pass Mill and Roll Shop of cold rolling mill Tata steel. Chandra Prakash ABSTRACT This case study deals in reducing Work Roll consumption of Skin Pass Mill of cold rolling Mill. Cold Rolling is a Process by which hot rolled strip or stock is introduced between rollers and squeezed or compressed to the desired thickness. The quality of work rolls that come into direct contact with the steel product has a direct effect on product quality and mill operation. At the time of taking up this case study, Roll cost was one of the major operational cost element for Skin pass Mill & due to increase in global Roll prices its contribution increases from 15 % of total conversion cost to 22 % of total conversion cost . In the mean time there were some additional problem associated with work roll grinding & operational practices at Skin pass mill which showing variability in the process of Roll grinding & Skin passing. This case study deals in bringing improvement in the work roll consumption of Skin pass Mill by using Six Sigma techniques (Define-Measure-Analyse-Improve & Control). Statistical methods are used to analyse the data and pin point the vital causes impacting the work roll consumption of Skin Pass Mill. Regression analysis & trial plan conducted during finalizing optimal and feasible solution, as this case study deals in improving standard operating practices & reducing variability within the process of roll grinding & skin passing. CONTENTS PAGE NO ABSTRACT 4 CONTENTS 5 LIST OF FIGURES 8 LIST OF TABLES 10 NOMENCLATURE 11 CHAPTER 1 INTRODUCTION AND LITERATURE SURVEY 1. 1 INTRODUCTION 12 1. 2 BASIC OF COLD ROLLING 15 1. 3 SKIN PASS MILL 16 1. 3. 1 OVERVIEW OF SKIN PASS MILL 18 1. 3. 2 PURPOSE OF SKIN PASSING 19 1. 4 ROLLS & THEIR REQUIREMENTS 25 1. 5 ROLL GRINDING PROCESS 31 1. 6 ROLL TEXTURING PRACTICES 35 . 7 SIX SIGMA APPROACH 41 1. 7. 2 SIX SIGMA IMPLEMENTATION 41 1. 8 PROBLEM DEFINITION 44 1. 9 OBJECTIVE OF CASE STUDY 45 CHAPTER 2: ANALYSIS OF THE PROBLEM PAGE NO 2. 1 INTRODUCTION 46 2. 2 BRAIN STORMING 46 2. 3 PARETO ANALYSIS 47 2. 4 INDIVIDUAL AND MOVING RANGE GRAPH 50 2. 5 MOODS MEDIAN TEST 52 2. 6 CAUSE EFFECT DIAGRAM 57 2. 7 OUTCOME OF ANALYSIS 60 CHAPTER – 3 METHODOLOGY TO ACHIEVE OBJECTIVES 3. 1INTRODUCTION 61 3. 2 PREPERATION OF ACTION PLAN 62 . 3 NORMAL GRINDING TRIALS & ACTION 62 3. 4 CRACK GRINDING TRIALS & ACTIONS 63 3. 5 SKIN PANEL ROLL GRINDING 63 3. 6 OPERATOR VARIABILITY 64 3. 7 ROLL CHANGE DUE TO ROLL ROUGHNESS 64 3. 8 SCH EDULING MODIFICATION 65 3. 9 ROUGHNESS PREDICTION MODEL 66 CHAPTER – 4 RESULTS AND DISCUSSIONS PAGE NO 4. 1 INTRODUCTION 68 4. 2 BEFORE AND AFTER COMPARISSION 68 4. 3 DISCUSSION ON RESULTS 71 4. 4 RESULTS 72 4. 5 CONTROL PLAN 73 . 6 SAVINGSCALCULATION 74 CHAPTER – 5 CONCLUSION & FUTURE SCOPE 75 REFERENCES 76 List of Figures Page No 1. 1 Skin Pass Mill & Tandem Cold Mill Photograph 12 1. 2 Line layout of cold rolling mill 14 1. 3 Skin Pass Mill Tata steel 16 1. 4 Tensile test graph before skin Passing 20 1. 5 Tensile test graph after skin Passing 22 1. 6 Luder band 24 1. 7Correlation between Roughness & peak count28 1. 8 Skewness of Surface28 1. 9 Surface measured at EDT m/c Tata steel 29 2. 0 Waviness Roughness & form of surface30 2. Roll Grinding M/c at Cold Rolling Mill 32 2. 2 EDT Vs Shot Blast Roll 37 2. 3 Effect of time & temp on surface texture38 2. 4 Effect of –ve polarity on surface texture38 2. 5 Roll texturing m/c at Cold rolling mill40 2. 6 Work roll consumption trend at skin pass mill 44 2. 7 Pareto chart for SPM Work roll grinding 49 2. 8 X bar & moving range chart for normal grinding 50 2. 9 Box plot for different operator at Roll Shop 54 List of Figures Page No 3. 0 Capability histogram for normal grinding 55 3. 1 Roll tonnage trend at skin pass Mill 56 . 2 Abnormal roll change trend at skin pass mill 57 3. 3 Cause & effect diagram for roll change due to low Ra 58 3. 4 SPM Work roll consumption trend before case study 68 3. 5 SPM Work roll consumption trend before case study 69 3. 6 Capability histogram before case study 69 3. 7 Capability histogram after case study 70 3. 8 Trend of abnormal roll change at skin pass mill 71 List of Tables Page No 1. 1 Roll roughness detail of tandem & skin pass mill 26 1. 2 Roughness Accuracy detail of texturing m/c 27 1. Selection of peripheral speed 31 1. 4 Standard Stock removal specification 33 1. 5 Grit size for different Roll 34 1. 6 Action on Grinding wheel on various condition 34 1. 7 Structure of grinding based upon requirement 35 1. 8 Grinding data for skin pass mill work roll 49 1. 9 Data capturing sheet51 2. 0 Operator variability matrix52 2. 1 Regression test result53 2. 2 Abnormal Roll Change detail at Skin Pass mill56 2. 3 Prioritization matrix for roll change reasons 57 2. 4 Scheduling Example of skin pass mill59 2. Normal Grinding trials & findings62 2. 6 Crack Grinding trials & findings63 2. 7 Modified Scheduling Example 65 2. 8 list of parameter effecting roughness 66 2. 9 Results of case study 72 3. 0 Control Plan for reducing work roll consumption 73 3. 1 Saving of the case study 74 NOMENCLATURE TCM – Tandem Cold Mill SPM – Skin Pass Mill M/c, m/c – Machine EDT – Electro Discharge Texturing Ra – Average Roughness CRM – Cold Rolling Mill IMR – Individual Moving Range TDC – Technical Delivery Condition ECT – Eddy current testing CRMIS: Cold Rolling Mill Information system PLTCM: Pickling line tandem cold Mill YPE: Yield Point Elongation SPM: Skin Pass Mill BAF: Batch Annealing Furnace ECL: Electrolytic Cleaning line RCL: Recoiling line NSC: Nippon Steel Corporation CRCA: Cold Rolled Closed Annealed CHAPTER 1 INTRODUCTION AND LITERATURE SURVEY 1. INTRODUCTION This chapter gives information about cold rolling mill, Skin Pass mill, Roll grinding, and Roll texturing process . It also describes about six sigma tool & its implementation at the end it describes objective of the case study. Cold Rolling is a Process by which hot rolled strip or stock is introduced between rollers and squeezed or compressed to the desired thickness. Amount of strain introduce determines the properties of the finished product. Following are Purpose of Cold Rolling ? Good formability ? Superior surface finish ? Reasonable strength ? Close dimensional tolerance Fig 1. 1 Tandem Cold Mill Tata steel Skin Pass Mill Tata steel Cold Rolling Mill complex has been commissioned at TATA STEEL works in the year 2000. The total output of the Cold Rolling Mill complex consists of 0. 96 mt of cold rolled and annealed products and 0. 5 mtpa (Million Tonne Per Annum) of cold rolled and galvanized products. Hence, the total installed capacity of this unit is approximately 1. 5 million tons per annum. The range of thickness and width of these cold rolled products are 0. 3 to 3. 2 mm and 800 to1560 mm respectively. The primary input material to the cold rolling complex is a hot rolled coil. The cold rolled products are broadly under the categories: ? Annealed coils ? Galvanized coils ? Cold rolled full hard coils. The cold rolled products from the Cold Rolling Mill complex are designed to cater to various market segments such as construction, general Eng. , automobile, white goods, packaging and others. CRM Process flow at Tata Steel Pickling (to remove oxides and scales) Cold rolling in tandem mill to achieve desired thickness Electrolytic cleaning line to clean the surface dirt. Batch annealing furnace for internal stress relieving Skin passing to remove luder bands, develop mechanical properties, Impart desired surface finish; improve flatness, Inspection, finishing, dispatch Sub Section of Cold Rolling Mill ? Pickling Line &Tandem Cold Mill (PL-TCM) ? Batch Annealing Furnace (BAF) ? Electrolytic cleaning Line (ECL) ? Skin Pass Mill (SPM) ? Galvanising Line ? Recoiling Line (RCL) ? Coil Packaging Line (CPL) pic] Fig 1. 2 Line lay out of Cold Rolling Mill Tata steel 1. 2 Basic of Cold Rolling Mill Following are the basic Processes ? The Hot Strip Mill sends the hot rolled coils (thickness 2 to 6 mm width and 800-1560 mm) to the Cold Rolling Mill Complex for processing. ? First the hot rolled coils are passed through the Pickling section containing Hydrochloric acid, in order to cl ean the surface of rust & scales, making them ready for cold rolling. ? The Trimming Section where the edges of pickled hot rolled coils are trimmed( if necessary) ? The coil is then fed into the main mill, viz. Tandem Cold Mill with five mill stands, each having three pairs of rolls in the five stands which bring down the strip thickness in a controlled manner to the desired target value of (0. 3mm to 3. 2 mm). ? This completes the process of cold rolling or rolling at ambient temperatures. ? From here the two-third of the product goes to Electrolytic cleaning line, where generally two process takes place and they are Predegressing and electrolytic cleaning with the help of NaOH, after this the sheet is washed with high pressure steam to remove the bubbles of NaOH from the surface. Then the coil is dried in the hot drier. ? The coil comes to Batch Annealing furnace directly from Electrolytic cleaning line where they are stacked covered and heated in a closed hood in a 100% hydrogen atmosphere. This process improves the mechanical properties of the strip. ? The Skin Pass Mill takes care of the coils annealed in Batch Annealing furnace by passing them through a single stand high-speed mill with two pairs of rolls. The objective is to impart the correct surface texture and to control the mechanical properties as per customer requirement. The coils are properly oiled for rust protection and recoiled in the Recoiling Lines (RCL 1, 2 & 3) for inspecting the surface. ? The remaining one- third part of the production from PLTCM goes to the Galvanising Lines (1 & 2) where coils are again cleaned, rinsed, dried, L-annealed/heated and taken through a Molten zinc bath for a continuous uniform coating of zinc. This zinc coating helps give a sacrificial layer on the cold rol led strip for corrosion protection. The Continuous packaging line takes care of the packing requirement of the coils as per the customer specifications. 1. 3 Skin Pass Mill [pic] Fig 1. 3 Skin Pass Mill Tata steel front view Skin pass mill: Annealed coils are given a small cold reduction (typically around 1-3 %) in the skin pass mill. This operation results in the right surface roughness imparted on the strip surface as per the customer specifications. In addition, a metallurgical defects known as stretcher strains are eliminated, and also the flatness of the strip is improved. The basic operation done in the cold rolling mill is the wet temper rolling as a cold rolling finishing which is the final process in the integrated steel production, where all materials received from the cold rolling process are processed into the final products with required properties through cleaning, heat treatment and then temper rolling. As this process is closely related to user requirement for mechanical properties, surface properties, size etc. many detailed operation standards are required (annealing surface, size change). This process is quickly adaptable to shape correction reprocessing etc. ut there are many operations which require human hands, as compared with cold rolling. As skin passing is the final process of the integrated steel making operation, the information obtained from this process must be completely fed back to the processes on the down stream side of the steel making furnace. This process is located closest to users and achieving in line quality to meet the user requirements must guaranty the quality. The feed back of information to the preceding processes to be reflected in production is very important. The temper rolling operation falls into three types as shown below: Operation using water-soluble rolling oil Operation using oil-soluble rolling oil Operation in with no rolling oil is used (Dry rolling). Each type of rolling operation has both advantages and disadvantages. The type of rolling operation must be selected in due consideration of the ease of temper rolling, the ease of operation and rust preventive at downstream process at customers end. The surface of roll to be used for temper rolling is mat-finished by shot blasting of steel grit or Elector Discharge Texturing (EDT). This finish is widely as it ensures good paint ability. When the working rolls are ground, the roll surface is bright- finished to about Ra (0. 05 µm) by using a grinding wheel of small grain size. The surface roughness of the strip rolled by bright-finished rolls is below Ra(0. 35 µm), which is suitable for prime coating Generally, the surface finish condition of strip in the temper rolling process is controlled in terms of the surface finished of work rolls only. For confirmation of this condition, the roughness and look of sheet surface after temper rolling is Checked at regular intervals. Temper rolling oil used is mainly applied to thick products, using dull-finished work rolls. The majority of rolling oils used for this rolling are sodium nitrite-based oils. The concentration of sodium nitrite is 5 ( 10% oil-soluble temper rolling oils higher rust preventive power to meet required uses have been developed and put into practical use. 1. 3. 1 OVERVIEW OF SKIN PASS MILL Skin pass an overview ? Single stand mill ? 4- High wet skin pass non-reversible mill ? Capacity: 1mtpa ? Line speed: 900mpm ? Thk range: 0. 3-3. 2 mm ? Width range: 900-1580 mm SPM Equipment ? Main drive-3 ? Mill stand rolls-4 ? Auxiliary roll-8 ? Oiling system ? Fume exhaust system ? Hydraulic gap control system ? Elongation control ? Low pressure hydraulic system ? Quick roll changing car ? Auto tempered car ? Back up rolls polishing ? Unique Features of SPM ? Higher productivity. ? High degree of accuracy- elongation control ? Surface cleanliness- wet skin pass ? Eco fr iendly fume exhaust ? Automatic quick work rolls change & pass line 1. 3. 2 PURPOSE OF SKIN PASSING ? Improvement of mechanical properties of material ? Shape correction Adjustment of surface properties (roughness) ? Apply rust preventive oil (optional) ? Improvement of mechanical properties of material ? Elimination of yield point elongation ? Improvement of formability by decreasing the yield point ? Improvement of other mechanical properties The skin passing of material has to be done with optimum parameters such that the purpose of skin passing is met. Ideally the skin passing has to be done in such a way that alternate grains are strained by which we will get 50% strained surface grains and 50% strain free surface grains. Upper yield point Stress Yield point elongation Lower yield point Strain Fig 1. 4 tensile test graphs before skin passing Yield point elongation is a well-known phenomenon in low carbon steel. After the elastic portion of the stress strain curve (a schematic engineering stress-strain curve is shown in the above figure) the load drops at upper yield point. At lower yield point this drop becomes steady, but a continuous series of fluctuation appears in the stress strain curve. This is commonly known as yield point elongation. After this stage, the curve becomes smooth again. Reason: The reason behind this phenomenon is the alternate locking and unlocking of dislocations by the interstitial atoms (C and N) in steel matrix. C and N atoms form interstitial solid solution and these have natural affinity for locking the dislocations. The locked dislocations cannot move freely, which restricts deformation of the material. The deformation of the material is actually caused by movement and multiplication of dislocations. The deformation stops when the dislocations are not free enough to continue their movements, and further application of load in this situation causes crack generation and failure. After cold rolling and annealing, a low carbon steel strip is supposed to undergo a forming operation. However, this forming becomes difficult if the dislocations are pinned down by the interstitial solute atoms. The annealing treatment provides ample opportunity for the dislocations to move freely and sit at the thermodynamically favourable sites, where the solute atoms pin the dislocations and kill their mobility. This is commonly known as Cottrell atmosphere. Now, if the material is subjected to a tensile load, the stress strain curve will show a serration, i. . alternate load drop and load jump, just after the yield point. Load drop indicates that the dislocations are pulled off from the solute atmosphere, coupled with generation of fresh dislocations under the external force, and load jump indicates that the momentarily free dislocations are again encountering with the solute atoms. This actually constitutes the stage of yield point elongation. Due to the pinning effect of the s olute atoms, the dislocation multiplication sources also become active, which generates fresh dislocations. After this stage, when sufficient fresh dislocations are available for continuing deformation, the stress-strain curve becomes smooth again. This yield point elongation (YPE) is absolutely detrimental as far as the formability of the material is concerned. It creates Luder bands or stretcher strain marks, which finally leads to failure of the component. These bands are visible on the strip surface. When a test specimen exhibits YPE during its tensile testing, these bands appear on the specimen surface, starting from middle (where necking starts) and spreading towards the ends, at an angle of approximately 450 to the tensile axis. YPE elongation continues till the entire specimen surface is covered by the Luder band formation, then smooth plastic deformation starts. Here comes the role of skin passing. Since YPE, after batch annealing, cannot be avoided, a skin depth deformation is given to the just annealed steel strip. This skin depth deformation actually overcomes this region of the stress-strain curve. Sufficient number of dislocations is pulled off from the solute (C, N) atmosphere, at the same time fresh dislocations are generated, which is sufficient for facilitating the forming operation at the next stage. If the material, in skin passed (or temper rolled) condition, is subjected to tensile testing, the stress strain curve will not show any YPE and the plastic deformation will take place without a sharp yield point, as shown in the figure below. That is what precisely desired for drawing or deep drawing grade material. If this skin passed material is left unused for a sufficiently long time, or subjected to a brief heat treatment at a low temperature, the YPE reappears once again. The YS value also goes up and ductility of the material drops. This phenomenon is known as strain aging. UTS YS Stress Strain Fig 1. tensile test graphs after skin passing From the discussion made so far, it is clear that the locking of dislocations are related to the two important factors, one is movement of dislocations, the other is movement of interstitial solute atoms. Therefore diffusion has a very important role to play. If the testing is carried out at room temperature, the mobility of dislocations un der the action of external load is more than the mobility of solute atoms. If the similar test is carried out at a higher temperature, the mobility of the solute atoms increases, and movements of dislocation and solute atoms may be comparable. Such a situation would give rise to an interesting phenomenon called dynamic strain aging, where the solute atoms keep on interacting with the dislocations and the entire stress strain curve (after elastic limit) shows serration. Since YPE is directly related to the concentrations of C and N atoms in steel, the extent of deformation (known as temper elongation) to be given at skin pass mill (SPM), which is a critical factor, varies with steel composition. The magnitude of temper elongation should be high for higher C content. For instance, the temper elongation in case of CQ material should be higher than that in case of EDD grade. If the temper elongation is less than the required amount, the material will show stretcher strain marks during forming. If temper elongation is higher than the required amount, the strength of the material will increase. This is not desirable, particularly for the softer grades like IF and EDD, because the strain hardening exponent value is higher for these grades, compared to that for ordinary CQ material. Theoretically speaking, IF or interstitial free deep drawing grade steel should not require any skin passing. The reason is that the C and N concentrations are kept very low in this grade (of the order of 30 ppm). In addition, presence of Ti in this steel promotes the fixing of C and N atoms in form of carbide and carbonitiride precipitates, thereby creating a condition so that the Fe matrix becomes virtually free of interstitial solute atoms. Such a condition favours the easy movement of dislocations without any hindrance, and this steel has been established as the highest formable grade, with maximum deep drawability and ductility. In practice, IF grade steel is subjected to skin passing with a small magnitude of elongation, and, of all grades, it requires minimum temper elongation. The skin pass depends on Yield strength of the material in the following way: Lower the skin pass (roughly less than 0. 6 %), the material will have the tendency to show Bauschinger’s effect. Higher the skin passing (above 1. 5%) the material will be over strained. That’s the reason why the skin passing for a given YS, has to be done with the optimum reduction such that the material does not get into either of the problems stated above. Also percentage reduction increases with increasing YS to get the optimum properties. Parameters on which Skin pass Load depends: Grain Size: Higher the ASTM grain size number (finer the grain), higher is the skin pass load. Speed: Increasing the speed of skin pass mill will require higher load for the same reduction Diameter of work roll: Larger the diameter of the work rolls, higher is the roll force required to remove stretcher strain. Roughness of the strip from Tandem Cold Mill: The incoming coil has got some roughness values because of the final finishing in stand number (5) of tandem Cold Mill. Many times to high roughness of the incoming strip to Skin Pass Mill and the requirement of Average roughness values on the surface in the ranger of 0. -1. 2 microns for most applications, the peaks are knocked off during skin passing which is detrimental from forming and image clarity point of view. The best practice for this should be keeping as low roughness as possible on the strip surface after tandem cold mill (of course sticker formation during annealing in Batch annealing furnace has to be kept in mind), a nd imparting higher roughness on the work rolls in the skin pass mill. 1. 3. 3 THEORY OF SKIN PASSING When the annealed mild steel sheet is preformed, surface markings, called stretcher strains markings, appear on deformed parts. Stretcher strains are also called as Luder bands. The formation of these markings can be prevented by Skin passing the sheet by giving the sheet elongation of 1-2 % before Performing. LUDER BAND OR STRECHER STRAIN This band is formed with an angle of about 45 deg – 50 deg with respect to the tensile axis the markings formed between Upper and lower are called as â€Å"Luder Lines† or â€Å"Stretcher Strains† as shown in fig 1. 6 Tensile load Luder band Tensile load Fig 1. 6 Luder band 1. 4 Rolls & their requirement for Cold Rolling The performance characteristics of rolls used in cold rolling mill, both in Tandem Cold Mill(TCM) and Skin Pass Mill, are critical to mill productivity and to the quality and acceptance of the cold rolled products. With the rapid change in roll technology, roll management in cold rolling has become an area of utmost importance. The increasing requirements of critical surface finish and texture of flat rolled product has necessitated application of the state of art technology in roll preparation and roll inspection. Rolls also represent a significant investment and input to a value analysis of cost per ton rolled. The quality of work rolls that come into direct contact with the steel product has a direct effect on product quality and mill operation. A forged steel with a chromium content of 5 mass% has been conventionally used to meet the requirement of metallurgical structure homogeneity and high hardness for work rolls in cold rolling. Rolls having improved performance are strongly demanded. 1. 4. 1 Requirement from textured Rolls: 1. 4. 1. 1 Surface finish: Surface roughness is imparted to Work Rolls which are used in 5th stand of Tandem cold mill and to the work rolls of Skin Pass Mill. The primary requirement of surface roughness for tandem mill rolls is to prevent stickers in the next process i. e. batch annealing. The surface roughness on Skin pass mill is guided by the requirement of surface roughness on Cold rolled strip which is based on its end use. Ra is the universally recognized and most used international parameter of roughness. It is the arithmetic mean of the departures of the profile from the mean line. Ra = 1/L {y (x)}dx For a typical application of auto grade the Ra value in strip ranges from 0. 8 to 1. 2 micron. The final roughness on SPM roll is decided based on the transfer ratio of roughness from roll to strip (ranges from 45-60% based on mill parameters). A typical transfer plot and the values of roughness is shown in table 1. 1 Table 1. 1 Roll Roughness detail of Tandem cold mill & skin pass mill Work Roll |Tandem Cold MILL Work Rolls |Skin Pass Mill Work Rolls | |Average roughness |PPC |Average roughness |PPC | |3. |75 |3 |120 | |4. 0 |70 |3. 0 |96, 118 | |4. 5 |65 |3. 5 |80 | |5. 0 |60 |4. 0 |70 | The distribution of surface roughness over the roll body is also of importance to ensure consistency of surface roughness over the strip widths produced in a campaign. The ROLLTEX Electro discharge texturing process of Sarclad machine produces a texture to the capability as mentioned in table 1. 2. Roughness Definition: Roughness is defined as the finer irregularities of the surface texture that usually result from the inherent action of some production process such as machining or wear. Roughness features are typically in the sub micron range. Continuously recurring, irregular depressions and elevations on the surface of the coil are known as roughness. Rough coil surface is usually caused by severe roll groove wears surface roughness can also be caused due to corrosion if the rod is stored for lengthy periods in damp or corrosive atmospheres. The degree of roughness can be determined by microscopic examination or with Ra meter. Surface roughness has two main attributes: Roughness height or depth, and Lateral dimension. Roughness heights of the structure on polishing or machining surface are frequently measured as a root mean square roughness. The units of roughness are angstroms or nanometres for smoothers surface ‘lim' and micrometers â€Å" µm† for rougher surface. Lateral dimensions frequently and called surface spatial wave lengths are measured in micrometers. A rough surface is usually described in terms of its deviation from a smooth reference surface. Some conventional methods for surface measurement are optical microscope, scanning electron microscope and transmission electron microscope. These can be used to produce topographic maps of surfaces. Today laser scattering technique has become more common. Ra value: Average/mean height of surface peaks and troughs over a reference length indicates an overall profile of the sheet surface, dullness or brightness. Roughness is imparted to the rolls by Electro discharge texturing method Table 1. 2 Roughness accuracy detail of texturing m/c |Sno |Range of roughness value |Accuracy of surface produced (Ra) |Accuracy of surface produced (PPC-peaks per | | | | |centimetre) | |1 |0. to 6. 0 micron Ra |+/- 4 % of mean Ra |+/- 4 % of mean PPC | |2 |6. 1 to 10. 0 micron Ra |+/- 5 % of mean Ra |+/- 5 % of mean PPC | |3 |>10. 1 micron Ra |+/- 6 % of mean Ra |+/- 6 % of mean PPC | 1. 4. 1. 2 Peak Count: It is the measurement of number of peaks in the specified length over a particular bandwidth (normally 1 micron). A profile peak is the highest part of the profile between an upwards and downwards crossing of the mean line. The exposed auto body panels typically require 100 ppi on the Cold rolled sheet. The transfer ratio of peak counts from roll to the strip ranges between 60-70%, based on again the rolling conditions. Figure 1. 7 shows the correlation between the roughness of the surface & the peak counts. Fig 1. 7 Correlation between roughness & peak counts Stability of the surface profile: The textured roll is required to give a consistent transfer of roughness and peak count on the strip while rolling. During rolling the surface experiences wear of the peaks and the roll is Fig 1. 8 Skewness of surface discarded after a certain tonnage, determined based on the cut-off point of surface requirement on the strip. To assess this requirement of surface stability, metrology experts and certain European instrument manufacturers have devised surface texture height parameters, which can be analysed by a Data Processing Module (DPM), supplied separately by the surface finish tester manufacturers. Out of various parameters used in this analysis, the most commonly used is Rsk (Skewness) and tp % (known as bearing ratio). Rsk is the measure of the symmetry of the amplitude distribution curve about the mean line. As shown in figure 1. 8 if Rsk is negative the surface peaks are higher, which is prone to a large drop in surface finish during the initial rolling. Based on the practical experience of cold rollers over the world, a slight positive value is preferred. A typical surface plot after texturing a surface to roughness value of 2. 93 micron in Sarclad EDT machine and measured by DPM is shown in Figure 1. 9 Fig 1. 9 Surface measurements done on Tata EDT-Skin Pass Mill roll. The Bearing ratio (tp%) is a measure of the length of bearing surface (expressed as a % of the assessment length), where the profile peaks have been cut off at a line which runs parallel to the mean line of the profile. The line defining the bearing surface can be set at a selected depth below the highest peak or at a selected distance above or below the mean line of the profile. When this line is set to the depth of the largest profile valley, the tp is 100% because the entire profile is above the bearing line. By plotting the tp value against depth below the highest profile peak between the 0% and 100 % limits, the bearing ratio (known as Abott- Firestone curve) curve is obtained. Figure 1. 9 shows the bearing ratio curve against a particular value of Rsk. 1. 4. 1. 3Waviness: Most surface profile results from the combined effects of roughness, waviness and form as shown in figure 2 Waviness parameters are produced by passing the data of the surface measurement through a low pass filter, so that longer wavelengths than the cut-off are included. The waviness, Wa is calculated from the resulting profile. Fig 2 Waviness, Roughness and Form of a surface Wavelengths in the roughness category < 800 micron are covered or filtered out by painting, in the end application of the CR strip. Wavelengths >800 micron defined as â€Å"Waviness† remain or are enhanced after painting and contribute to poor Distinctness of image or image clarity. If Wa is held below 0. 6 micron, irrespective of the Ra, then those wavelengths >800 micron have only a marginally adverse effect on Distinctness of image. Samples of sheet produced by tandem/ temper mill rolls textured by the Rolltex EDT process consistently show levels of Wa