Hamlet - Comment On Humanity Essays (986 words) -

Hamlet - Comment on Humanity The Elizabethan play The Tragedy of Hamlet Prince of Denmark is one of William Shakespeare's most popular works. One of the possible reasons for this play's popularity is the way Shakespeare uses the character Hamlet to exemplify the complex workings of the human mind. The approach taken by Shakespeare in Hamlet has generated countless different interpretations of meaning, but it is through Hamlet's struggle to confront his internal dilemma, deciding when to revenge his fathers death, that the reader becomes aware of one of the more common interpretations in Hamlet; the idea that Shakespeare is attempting to comment on the influence that one's state of mind can have on the decisions they make in life. As the play unfolds, Shakespeare uses the encounters that Hamlet must face to demonstrate the effect that one's perspective can have on the way the mind works. In his book Some Shakespeare Themes & An Approach to Hamlet, L.C. Knight takes notice of Shakespeare's use of these encounters to journey into the workings of the human mind when he writes: What we have in Hamlet.is the exploration and implicit criticism of a particular state of mind or consciousness.In Hamlet, Shakespeare uses a series of encounters to reveal the complex state of the human mind, made up of reason, emotion, and attitude towards the self, to allow the reader to make a judgment or form an opinion about fundamental aspects of human life. (192) Shakespeare sets the stage for Hamlet's internal dilemma in Act 1, Scene 5 of Hamlet when the ghost of Hamlet's father appears and calls upon Hamlet to "revenge his foul and most unnatural murder" (1.5.24). It is from this point forward that Hamlet must struggle with the dilemma of whether or not to kill Claudius, his uncle, and if so when to actually do it. As the play progresses, Hamlet does not seek his revenge when the opportunity presents itself, and it is the reasoning that Hamlet uses to justify his delay that becomes paramount to the reader's understanding of the effect that Hamlet's mental perspective has on his situation. In order to fully understand how Hamlet's perspective plays an important role in this play, the reader must attempt to answer the fundamental question: Why does Hamlet procrastinate in taking revenge on Claudius? Although the answer to this question is at best somewhat complicated, Mark W. Scott attempts to offer some possible explanations for Hamlet's delay in his book, Shakespeare for Students: Critics who find the cause of Hamlet's delay in his internal meditations typically view the prince as a man of great moral integrity who is forced to commit an act which goes against his deepest principles. On numerous occasions, the prince tries to make sense of his moral dilemma through personal meditations, which Shakespeare presents as soliloquies. Another perspective of Hamlet's internal struggle suggests that the prince has become so disenchanted with life since his father's death that he has neither the desire nor the will to exact revenge. (74) Mr. Scott points out morality and disenchantment, both of which belong solely to an individuals own conscious, as two potential causes of Hamlet's procrastination, and therefore he offers support to the idea that Shakespeare is placing important emphasis on the role of individual perspective in this play. The importance that Mr. Scott's comment places on Hamlet's use of personal meditations to "make sense of his moral dilemma" (74), also helps to support L.C. Knight's contention that Shakespeare is attempting to use these dilemmas to illustrate the inner workings of the human mind. In Hamlet, Shakespeare gives the reader an opportunity to evaluate the way the title character handles a very complicated dilemma and the problems that are generated because of it. These problems that face Hamlet are perhaps best viewed as overstatements of the very types of problems that all people must face as they live their lives each day. The magnitude of these "everyday" problems are almost always a matter of individual perspective. Each person will perceive a given situation based on his own state of mind. The one, perhaps universal, dilemma that faces all of mankind is the problem of identity. As Victor L. Cahn

Nazi Siezure of Power essays

Nazi Siezure of Power essays Frustration with a current administration, or concern with ones present state in society provides a strong foothold for new ideas to develop, grow and be heard. The Nazi Seizure of Power perfectly illustrates the prevailing reasons for Nazi dominance in a complex community of 4,700 inhabitants. It also serves as a relatively sized scale to explain the how Hitler and the NSDAP were able to establish their presence, and impose their dictatorship throughout all of Germany and beyond. One of history's most tragic displays of human nature and interaction was the way in which the Nazi's came to power and how they maintained it for as long as they did. We continually contemplate the psychology of Nazi Anti-Semitism and the murderous intent that arose from its growth. Yet, few question not why the Holocaust took place, but how Hitler and his radical political supporters had the capacity to infiltrate cities and impose a steadfast grip on power. It is hard to believe that ideologies struct ured around such obtrusive evil would have the ability to establish a position in politics or government, let alone maintain dominance. In times of uncertainty and uneasiness, however, people thrive on entertaining the ideals of voices that scream change. Firstly, Northeim's Nazis created their own image by their own initiative, vigor and propaganda. The main concentration in the nazi electoral surge and seizure was on the local level; to accompany this the critical figures were the local Nazi leaders. There were constant parades and meetings, which gave the impression of irresistible enthusiasm and approval. There was the vigor in the economic area which more than anything else seem to justify the dictatorship. No one was killed and very few people were sent to concentration camps from Northeim during the early years of the third Reich. On the one occasion when Ernst Girmann seemed determined to turn, the storm troopers loose on Carl Quefert and ...

An Information Technology Entrepreneur Essay Example | Topics and Well Written Essays - 2000 words

An Information Technology Entrepreneur - Essay Example It results in job creation, a forward looking and self sufficient society as well as increased foreign trade. It leads to the development of certain areas especially rural areas where certain factories are setup to achieve lower costs. Entrepreneurship results in competition between businesses thereby leading to better quality and more choice for the consumer. Another advantage of entrepreneurship is its ability to promote modern technology in small scale manufacturing to enhance productivity. Thereby entrepreneurship and innovation must be encouraged. (Langlois, 2) Entrepreneurship is not limited to a certain field, nation or profession. It transcends all such boundaries to become a major force in the development of a society. Information technology is a field in which exemplary entrepreneurial talents have emerged. It is also an area which requires constant innovation and entrepreneurship. This is because technology keeps getting upgraded and the world keeps moving forward in this field. The information technology explosion has taken the world by storm and has lead to an entrepreneurial culture which has given way to many scientific advances, the likes of internet, portable networking and email included. (Brown and Ulijn, 83) Many entrepreneurs in the information technology arena came and went. Many were successful others not so. However, none have left a mark on the information technology industry like Bill Gates, the founder of Microsoft Corporation has. Microsoft Corporation is the largest software company in the world. It is the company that made Bill Gates the second richest man in the world being its largest stockholder and the youngest self-made billionaire. He is worth a whopping $6.1 billion. In 1994 his company made $953 million last year on sales of $3.75 billion. Microsofts $25 billion market value tops that of Ford, General Motors, 3M, Boeing, RJR Nabisco, General Mills, Anheuser-Busch or Eastman Kodak.  

Mother by amy tan Essay Example | Topics and Well Written Essays - 750 words

Mother by amy tan - Essay Example The use of English however must be put in context just like Amy Tan narrated when she was delivering a speech as well as communicating with her mother. In everyday communication where we converse with people close to us, there is really no standard of right and wrong English in academic standard. Grammars are not observed and proper syntax can be ignored. Probably the standard of propriety in the use of English language in this context is the degree of respectability and consideration to the person we are communicating with by not using offensive language that could hurt or offend the other person. It is different however when we go out of the comfort of our homes and social circles. Especially in school when we are graded and at work where part of our professionalism depends on how we communicate. There, the standard of proper English becomes stringent and the student and/or professional must be able to communicate it well in accordance to the proper use of the English language. The comfort of the mode of communicating intimate language at home should not be made an excuse for communicating poorly in academic and professional setting. Just like in the case of Amy Tan where she forced herself to learn good English to the point of being a writer, a student must also strive to improve his or her command of English. Understandably, this would not be easy especially if English is not the person’s mother tongue just like the case of Amy Tan’s mother. One must however not pass harshly to Amy Tan’s mother just because she cannot speak straight or proper English. Her inability to speak straight English does not reflect her aptitude. As what Amy Tan has said, she can read and comprehend complex text more than Amy Tan could. And as Amy Tan narrated beautifully at the end of her essay, her language ability â€Å"does not reveal her intent, her passion, her imagery, the rhythms of her

Human Resource Management Term Paper Essay Example | Topics and Well Written Essays - 2250 words

Human Resource Management Term Paper - Essay Example While employees may be dismissed on the grounds of downsizing the organization mostly due to constant loss making, most instances incorporate employees being terminated due to poor performance as well as neglect of their duties (Bernardin 218). The correct termination procedure for a poorly performing employee would involve communication to ensure that the subject individual is well aware of the organization’s rules and what is expected of them. In the instance where the employee performs poorly and comes to work late, then the manager should inform them on that issue in a timely manner. This ensures that if it comes to the point that the employee is dismissed, then they do not argue that they were not aware of poor performance. Besides arriving to work late, if the employee does not fulfill the duties that have been entrusted on them by the organization without acceptable reasons such as not having been trained adequately to undertake those specific tasks, then the subject in dividual is eligible for termination. However, they should be warned regarding their wanting performance where if they do not improve, chances of dismissal increase. Some employees take unreasonably long breaks, which affects the performance of the organization. Such reasons may lead the manager to contemplate terminating the subject individual where they assess all required information for justified termination. The description of a bad employee in an organization that decided to terminate them meets the mentioned shortcomings ranging from arriving to work late and not fulfilling their duties to taking perversely long breaks. When the manager decided to terminate the individual, there were certain questions that they had to answer so as to be justified on pushing forward with the identified decision. First, the manager determined whether they had enough grounds to terminate the employee. Grounds may be given in

The Taguchi Methods for Quality Improvement

The Taguchi Methods for Quality Improvement INTRODUCTION: Taguchi methods are statistical methods developed by Genichi Taguchi to improve the quality of manufactured goods, and more recently also applied to, engineering, biotechnology, marketing and advertising. Professional statisticians have welcomed the goals and improvements brought about by Taguchi methods, particularly by Taguchis development of designs for studying variation, but have criticized the inefficiency of some of Taguchis proposals. Taguchis work includes three principal contributions to statistics: A specific loss function see Taguchi loss function; The philosophy of off-line quality control; and Innovations in the design of experiments. Loss functions Loss functions in statistical theory Traditionally, statistical methods have relied on mean-unbiased estimators of treatment effects: Under the conditions of the Gauss-Markov theorem, least squares estimators have minimum variance among all mean-unbiased estimators. The emphasis on comparisons of means also draws (limiting) comfort from the law of large numbers, according to which the sample means converge to the true mean. Fishers textbook on the design of experiments emphasized comparisons of treatment means. Gauss proved that the sample-mean minimizes the expected squared-error loss-function (while Laplace proved that a median-unbiased estimator minimizes the absolute-error loss function). In statistical theory, the central role of the loss function was renewed by the statistical decision theory of Abraham Wald. However, loss functions were avoided by Ronald A. Fisher.[6] Taguchis use of loss functions Taguchi knew statistical theory mainly from the followers of Ronald A. Fisher, who also avoided loss functions. Reacting to Fishers methods in the design of experiments, Taguchi interpreted Fishers methods as being adapted for seeking to improve the mean outcome of a process. Indeed, Fishers work had been largely motivated by programmes to compare agricultural yields under different treatments and blocks, and such experiments were done as part of a long-term programme to improve harvests. However, Taguchi realised that in much industrial production, there is a need to produce an outcome on target, for example, to machine a hole to a specified diameter, or to manufacture a cell to produce a given voltage. He also realised, as had Walter A. Shewhart and others before him, that excessive variation lay at the root of poor manufactured quality and that reacting to individual items inside and outside specification was counterproductive. He therefore argued that quality engineering should start with an understanding of quality costs in various situations. In much conventional industrial engineering, the quality costs are simply represented by the number of items outside specification multiplied by the cost of rework or scrap. However, Taguchi insisted that manufacturers broaden their horizons to consider cost to society. Though the short-term costs may simply be those of non-conformance, any item manufactured away from nominal would result in some loss to the customer or the wider community through early wear-out; difficulties in interfacing with other parts, themselves probably wide of nominal; or the need to build in safety margins. These losses are externalities and are usually ignored by manufacturers, which are more interested in their private costs than social costs. Such externalities prevent markets from operating efficiently, according to analyses of public economics. Taguchi argued that such losses would in evitably find their way back to the originating corporation (in an effect similar to the tragedy of the commons), and that by working to minimise them, manufacturers would enhance brand reputation, win markets and generate profits. Such losses are, of course, very small when an item is near to negligible. Donald J. Wheeler characterised the region within specification limits as where we deny that losses exist. As we diverge from nominal, losses grow until the point where losses are too great to deny and the specification limit is drawn. All these losses are, as W. Edwards Deming would describe them, unknown and unknowable, but Taguchi wanted to find a useful way of representing them statistically. Taguchi specified three situations: Larger the better (for example, agricultural yield); Smaller the better (for example, carbon dioxide emissions); and On-target, minimum-variation (for example, a mating part in an assembly). The first two cases are represented by simple monotonic loss functions. In the third case, Taguchi adopted a squared-error loss function for several reasons: It is the first symmetric term in the Taylor series expansion of real analytic loss-functions. Total loss is measured by the variance. As variance is additive (for uncorrelated random variables), the total loss is an additive measurement of cost (for uncorrelated random variables). The squared-error loss function is widely used in statistics, following Gausss use of the squared-error loss function in justifying the method of least squares. Reception of Taguchis ideas by statisticians Though many of Taguchis concerns and conclusions are welcomed by statisticians and economists, some ideas have been especially criticized. For example, Taguchis recommendation that industrial experiments maximise some signal-to-noise ratio (representing the magnitude of the mean of a process compared to its variation) has been criticized widely. Off-line quality control Taguchis rule for manufacturing Taguchi realized that the best opportunity to eliminate variation is during the design of a product and its manufacturing process. Consequently, he developed a strategy for quality engineering that can be used in both contexts. The process has three stages: System design Parameter design Tolerance design System design This is design at the conceptual level, involving creativity and innovation. Parameter design Once the concept is established, the nominal values of the various dimensions and design parameters need to be set, the detail design phase of conventional engineering. Taguchis radical insight was that the exact choice of values required is under-specified by the performance requirements of the system. In many circumstances, this allows the parameters to be chosen so as to minimise the effects on performance arising from variation in manufacture, environment and cumulative damage. This is sometimes called robustification. Tolerance design With a successfully completed parameter design, and an understanding of the effect that the various parameters have on performance, resources can be focused on reducing and controlling variation in the critical few dimensions (see Pareto principle). Design of experiments Taguchi developed his experimental theories independently. Taguchi read works following R. A. Fisher only in 1954. Taguchis framework for design of experiments is idiosyncratic and often flawed, but contains much that is of enormous value. He made a number of innovations. Outer arrays Taguchis designs aimed to allow greater understanding of variation than did many of the traditional designs from the analysis of variance (following Fisher). Taguchi contended that conventional sampling is inadequate here as there is no way of obtaining a random sample of future conditions.[7] In Fishers design of experiments and analysis of variance, experiments aim to reduce the influence of nuisance factors to allow comparisons of the mean treatment-effects. Variation becomes even more central in Taguchis thinking. Taguchi proposed extending each experiment with an outer array (possibly an orthogonal array); the outer array should simulate the random environment in which the product would function. This is an example of judgmental sampling. Many quality specialists have been using outer arrays. Later innovations in outer arrays resulted in compounded noise. This involves combining a few noise factors to create two levels in the outer array: First, noise factors that drive output lower, and second, noise factors that drive output higher. Compounded noise simulates the extremes of noise variation but uses fewer experimental runs than would previous Taguchi designs. Management of interactions Interactions, as treated by Taguchi Many of the orthogonal arrays that Taguchi has advocated are saturated arrays, allowing no scope for estimation of interactions. This is a continuing topic of controversy. However, this is only true for control factors or factors in the inner array. By combining an inner array of control factors with an outer array of noise factors, Taguchis approach provides full information on control-by-noise interactions, it is claimed. Taguchi argues that such interactions have the greatest importance in achieving a design that is robust to noise factor variation. The Taguchi approach provides more complete interaction information than typical fractional factorial designs, its adherents claim. * Followers of Taguchi argue that the designs offer rapid results and that interactions can be eliminated by proper choice of quality characteristics. That notwithstanding, a confirmation experiment offers protection against any residual interactions. If the quality characteristic represents the energy transformation of the system, then the likelihood of control factor-by-control factor interactions is greatly reduced, since energy is additive. Inefficencies of Taguchis designs * Interactions are part of the real world. In Taguchis arrays, interactions are confounded and difficult to resolve. Statisticians in response surface methodology (RSM) advocate the sequential assembly of designs: In the RSM approach, a screening design is followed by a follow-up design that resolves only the confounded interactions that are judged to merit resolution. A second follow-up design may be added, time and resources allowing, to explore possible high-order univariate effects of the remaining variables, as high-order univariate effects are less likely in variables already eliminated for having no linear effect. With the economy of screening designs and the flexibility of follow-up designs, sequential designs have great statistical efficiency. The sequential designs of response surface methodology require far fewer experimental runs than would a sequence of Taguchis designs.[ TAGUCHI METHODS There has been a great deal of controversy about Genichi Taguchis methodology since it was first introduced in the United States. This controversy has lessened considerably in recent years due to modifications and extensions of his methodology. The main controversy, however, is still about Taguchis statistical methods, not about his philosophical concepts concerning quality or robust design. Furthermore, it is generally accepted that Taguchis philosophy has promoted, on a worldwide scale, the design of experiments for quality improvement upstream, or at the product and process design stage. Taguchis philosophy and methods support, and are consistent with, the Japanese quality control approach that asserts that higher quality generally results in lower cost. This is in contrast to the widely prevailing view in the United States that asserts that quality improvement is associated with higher cost. Furthermore, Taguchis philosophy and methods support the Japanese approach to move quality improvement upstream. Taguchis methods help design engineers build quality into products and processes. As George Box, Soren Bisgaard, and Conrad Fung observed: Today the ultimate goal of quality improvement is to design quality into every product and process and to follow up at every stage from design to final manufacture and sale. An important element is the extensive and innovative use of statistically designed experiments. TAGUCHIS DEFINITION OF QUALITY The old traditional definition of quality states quality is conformance to specifications. This definition was expanded by Joseph M. Juran (1904-) in 1974 and then by the American Society for Quality Control (ASQC) in 1983. Juran observed that quality is fitness for use. The ASQC defined quality as the totality of features and characteristics of a product or service that bear on its ability to satisfy given needs. Taguchi presented another definition of quality. His definition stressed the losses associated with a product. Taguchi stated that quality is the loss a product causes to society after being shipped, other than losses caused by its intrinsic functions. Taguchi asserted that losses in his definition should be restricted to two categories: (1) loss caused by variability of function, and (2) loss caused by harmful side effects. Taguchi is saying that a product or service has good quality if it performs its intended functions without variability, and causes little loss through harmful side effects, including the cost of using it. It must be kept in mind here that society includes both the manufacturer and the customer. Loss associated with function variability includes, for example, energy and time (problem fixing), and money (replacement cost of parts). Losses associated with harmful side effects could be market shares for the manufacturer and/or the physical effects, such as of the drug thalidomide, for the consumer. Consequently, a company should provide products and services such that possible losses to society are minimized, or, the purpose of quality improvement is to discover innovative ways of designing products and processes that will save society more than they cost in the long run. The concept of reliability is appropriate here. The next section will clearly show that Taguchis loss function yields an operational definition of the term loss to society in his definition of quality. TAGUCHIS LOSS FUNCTION We have seen that Taguchis quality philosophy strongly emphasizes losses or costs. W. H. Moore asserted that this is an enlightened approach that embodies three important premises: for every product quality characteristic there is a target value which results in the smallest loss; deviations from target value always results in increased loss to society; [and] loss should be measured in monetary units (dollars, pesos, francs, etc.). Figure I depicts Taguchis typically loss function. The figure also contrasts Taguchis function with the traditional view that states there are no losses if specifications are met. Taguchis Loss Function It can be seen that small deviations from the target value result in small losses. These losses, however, increase in a nonlinear fashion as deviations from the target value increase. The function shown above is a simple quadratic equation that compares the measured value of a unit of output Y to the target T.: Essentially, this equation states that the loss is proportional to the square of the deviation of the measured value, Y, from the target value, T. This implies that any deviation from the target (based on customers desires and needs) will diminish customer satisfaction. This is in contrast to the traditional definition of quality that states that quality is conformance to specifications. It should be recognized that the constant k can be determined if the value of L(Y) associated with some Y value are both known. Of course, under many circumstances a quadratic function is only an approximation. Since Taguchis loss function is presented in monetary terms, it provides a common language for all the departments or components within a company. Finally, the loss function can be used to define performance measures of a quality characteristic of a product or service. This property of Taguchis loss function will be taken up in the next section. But to anticipate the discussion of this property, Taguchis quadratic function can be converted to: This can be accomplished by assuming Y has some probability distribution with mean, a and variance o.2 This second mathematical expression states that average or expected loss is due either to process variation or to being off target (called bias), or both. TAGUCHI, ROBUST DESIGN, AND THEÂ  DESIGN OF EXPERIMENTS Taguchi asserted that the development of his methods of experimental design started in Japan about 1948. These methods were then refined over the next several decades. They were introduced in the United States around 1980. Although, Taguchis approach was built on traditional concepts of design of experiments (DOE), such as factorial and fractional factorial designs and orthogonal arrays, he created and promoted some new DOE techniques such as signal-to-noise ratios, robust designs, and parameter and tolerance designs. Some experts in the field have shown that some of these techniques, especially signal-to-noise ratios, are not optimal under certain conditions. Nonetheless, Taguchis ideas concerning robust design and the design of experiments will now be discussed. DOE is a body of statistical techniques for the effective and efficient collection of data for a number of purposes. Two significant ones are the investigation of research hypotheses and the accurate determination of the relative effects of the many different factors that influence the quality of a product or process. DOE can be employed in both the product design phase and production phase. A crucial component of quality is a products ability to perform its tasks under a variety of conditions. Furthermore, the operating environmental conditions are usually beyond the control of the product designers, and, therefore robust designs are essential. Robust designs are based on the use of DOE techniques for finding product parameter settings (e.g., temperature settings or drill speeds), which enable products to be resilient to changes and variations in working environments. It is generally recognized that Taguchi deserves much of the credit for introducing the statistical study of robust design. We have seen how Taguchis loss function sets variation reduction as a primary goal for quality improvement. Taguchis DOE techniques employ the loss function concept to investigate both product parameters and key environmental factors. His DOE techniques are part of his philosophy of achieving economical quality design. To achieve economical product quality design, Taguchi proposed three phases: system design, parameter design, and tolerance design. In the first phase, system design, design engineers use their practical experience, along with scientific and engineering principles, to create a viably functional design. To elaborate, system design uses current technology, processes, materials, and engineering methods to define and construct a new system. The system can be a new product or process, or an improved modification of an existing product or process. The parameter design phase determines the optimal settings for the product or process parameters. These parameters have been identified during the system design phase. DOE methods are applied here to determine the optimal parameter settings. Taguchi constructed a limited number of experimental designs, from which U.S. engineers have found it easy to select and apply in their manufacturing environments. The goal of the parameter design is to design a robust product or process, which, as a result of minimizing performance variation, minimizes manufacturing and product lifetime costs. Robust design means that the performance of the product or process is insensitive to noise factors such as variation in environmental conditions, machine wear, or product to-product variation due to raw material differences. Taguchis DOE parameter design techniques are used to determine which controllable factors and which noise factors are the significant variables. The aim is to set the controllable factors at those levels that will result in a product or process being robust with respect to the noise factors. In our previous discussion of Taguchis loss function, two equations were discussed. It was observed that the second equation could be used to establish quality performance measures that permit the optimization of a given products quality characteristic. In improving quality, both the average response of a quality and its variation are important. The second equation suggests that it may be advantageous to combine both the average response and variation into a single measure. And Taguchi did this with his signal-to-noise ratios (S/N). Consequently, Taguchis approach is to select design parameter levels that will maximize the appropriate S/N ratio. These S/N ratios can be used to get closer to a given target value (such as tensile strength or baked tile dimensions), or to reduce variation in the products quality characteristic(s). For example, one S/N ratio corresponds to what Taguchi called nominal is best. Such a ratio is selected when a specific target value, such as tensile strength, is the design goal. For the nominal is best case, Taguchi recommended finding an adjustment factor (some parameter setting) that will eliminate the bias discussed in the second equation. Sometimes a factor can be found that will control the average response without affecting the variance. If this is the case, our second equation tells us that the expected loss becomes: Consequently, the aim now is to reduce the variation. Therefore, Taguchis S/N ratio is: where S 2 is the samples standard deviation. In this formula, by minimizing S 2 , 10 log 10 S 2 , is maximized. Recall that all of Taguchis S/N ratios are to be maximized. Finally, a few brief comments concerning the tolerance design phase. This phase establishes tolerances, or specification limits, for either the product or process parameters that have been identified as critical during the second phase, the parameter design phase. The goal here is to establish tolerances wide enough to reduce manufacturing costs, while at the same time assuring that the product or process characteristics are within certain bounds. EXAMPLES AND CONCLUSIONS As Thomas P. Ryan has stated, Taguchi at the very least, has focused our attention on new objectives in achieving quality improvement. The statistical tools for accomplishing these objectives will likely continue to be developed. Quality management gurus, such as W. Edwards Deming (1900-1993) and Kaoru Ishikawa (1915-), have stressed the importance of continuous quality improvement by concentrating on processes upstream. This is a fundamental break with the traditional practice of relying on inspection downstream. Taguchi emphasized the importance of DOE in improving the quality of the engineering design of products and processes. As previously mentioned, however, his methods are frequently statistically inefficient and cumbersome. Nonetheless, Taguchis design of experiments have been widely applied and theoretically refined and extended. Two application cases and one refinement example will now be discussed. K. N. Anand, in an article in Quality Engineering, discussed a welding problem. Welding was performed to repair cracks and blown holes on the cast-iron housing of an assembled electrical machine. Customers wanted a defect-free quality weld, however the welding process had resulted in a fairly high percentage of welding defects. Management and welders identified five variables and two interactions that were considered the key factors in improving quality. A Taguchi orthogonal design was performed resulting in the identification of two highly significant interactions and a defect-free welding process. The second application, presented by M. W. Sonius and B. W. Tew in a Quality Engineering article, involved reducing stress components in the connection between a composite component and a metallic end fitting for a composite structure. Bonding, pinning, or riveting the fitting in place traditionally made the connections. Nine significant variables that could affect the performance of the entrapped fiber connections were identified and a Taguchi experimental design was performed. The experiment identified two of the nine factors and their respective optimal settings. Therefore, stress levels were significantly reduced. The theoretical refinement example involves Taguchi robust designs. We have seen where such a design can result in products and processes that are insensitive to noise factors. Using Taguchis quadratic loss function, however, may provide a poor approximation of true loss and suboptimal product or process quality. John F. Kros and Christina M. Mastrangelo established relationships between nonquadratic loss functions and Taguchis signal-to-noise ratios. Applying these relationships in an experimental design can change the recommended selection of the respective settings of the key parameters and result in smaller losses.

Shaking Baby Syndrome Essay -- essays research papers

Shaken Baby Syndrome Imagine yourself as a sweet, innocent, precious little baby. You are totally dependant upon adults to give you what you need and most importantly love. Your only means of communication is crying so you cry when you need to be fed, when you need your diaper changed, when you aren’t feeling so well, or when you just want some attention. You are crying and someone comes over to you. They pick you up, but instead of holding you and comforting you, talking affectionately to you, they shake you violently and vigorously. You are a baby, imagine the fear and pain that the shaking causes you. This is a form of child abuse and what is even harder to believe is that it actually happens. The correct term is Shaken Baby Syndrome and it is a form of abuse that is happening far and wide.  Ã‚  Ã‚  Ã‚  Ã‚     Ã‚  Ã‚  Ã‚  Ã‚  What exactly is Shaking Baby Syndrome? Shaken Baby Syndrome is a serious brain injury that occurs when adults, frustrated and angry with children, shake then violently, and Shaken Baby Syndrome mostly occurs when a child receives numerous rapid shakes. It can also occur when a baby is slammed against a hard object; head impact is not necessary but does frequently occur. Shaken Baby Syndrome occurs frequently in infants younger than six months old, yet can occur up to the age of 5. (Showers, 1997.) In reality, shaking a baby if only for a few seconds can injure the baby for life.   Ã‚  Ã‚  Ã‚  Ã‚  Often frustrated parents or other persons responsible for a child’s care feel that shaking a baby is a harmless way to make a child stop crying. The number one reason why a baby is shaken is because of inconsolable crying. (National Exchange Club Foundation, 1998) An infant may spend two to three hours a day crying. (The Epilepsy Association of Central Florida) A caregiver momentarily gives in to the frustration of responding to a crying baby by shaking. Caregivers may be inadequately prepared for children.   Ã‚  Ã‚  Ã‚  Ã‚  Why is shaking a baby so dangerous? A baby’s head and neck are especially vulnerable to injury because the head is so large and the neck muscles are still weak. A baby’s neck is to weak to support their heavy head so when the baby is shaken the heads swings back and forth. In addition, the baby’s brain and blood vessels are very fragile and easily damaged by whiplash mo... ...n a coma, being in a vegetative state, and the worst, death. One in every four babies shaken dies. The rest have to deal with the injuries and symptoms that will affect the rest of their innocent lives. Twenty five to thirty percent of babies shaken die (National Shaken Baby Syndrome). Immediate medical attention can help reduce the impact of shaking, but many children are left with permanent damage from the shaking. The treatment of survivors falls into 3 major categories. Those categories are medical, behavioral, and educational. In addition to medical care, children may need speech and language therapy, vision therapy, physical therapy, occupational therapy, and special education services. (Showers, 1997) Many incidents of Shaken Baby Syndrome are not reported out of fear. It is important to seek immediate and early medical attention. Serious complications and even death can be avoided. Exactly how much force is needed to cause injuries? No firm answer exists as to the exact number of shakes necessary or how long a person might typically shake a child. In most cases the period of shaking is 5-10 seconds. (National Center on Shaken Baby Syndrome) To cause brain damage, severe