Thursday, November 21, 2019
Qestions Assignment Example | Topics and Well Written Essays - 250 words
Qestions - Assignment Example Likewise, the major ethical issue involved was once it was determined that Hawley and Hazel had a highly racially offensive product how Colgate would seek to deal with such a problem in its very large domestic US market. As is usually said – hindsight is 20/20; however, it is the opinion of this student that seeking to demand that Hawley and Hazel discontinue and/or rebrand the product immediately or risk termination of the partnership should have been engaged upon as a means of ameliorating the damage that would be done to the domestic market based upon the negative reaction of many civil rights groups etc. 3. Is it possible for Colgate and Hawley and Hazel to change the toothpaste’s advertising without sacrificing consumer brand loyalty? IS that a possible reason for Colgate’s not responding quickly to domestic complaints? Ultimately, the answer to the first question is yes. Regardless of how ingenious a marketing rebranding strategy that could have been engaged with, a certain level of loss would doubtless have been realized and other competitors would have greatly benefitted from such a rebranding. Moreover a rebranding requires a large amount of up front funding in addition to the necessary losses that would be exhibited upon brand loyalty. As a function of weighing this level of necessary loss, Colgate opted for merely hoping to ride out the storm; however, as this did not happen, Colgate made a very cost miscalculation. In the end, a â€Å"no management rights†clause was most certainly not the right decision for Colgate. Due to the fact that once the Hawley Hazel toothpaste debacle came to light Colgate had little if any leverage to seek to force a change in branding from the firm it had allied itself with. A far better approach, if the firm had still been set upon a â€Å"no management rights†clause would have been for Colgate to perform a very thorough analysis of
Tuesday, November 19, 2019
Modern America Essay Example | Topics and Well Written Essays - 750 words
Modern America - Essay Example A widespread process of imperial expansion into Africa and Asia resulted, often with brutal consequences for the indigenous population due to Christian missionaries who wre dispatched to convert the native peoples. Americans became increasingly aware of world markets as developments in transportation and communication quickened the pace of commerce and diplomacy. The automobile and airplane helped shrink distance, and communications innovations such as radio and film contributed to a national consciousness. Throughout most of the nineteenth century, policy makers had sought to isolate America from the intrigues and conflicts of the great European powers but now America was coming out of it's isolationist shell by expanding commercial interests around the world along with the horizons of their concerns. The abundance of industries and cities invited a host of immigrants from all corners of the globe. urban-industrial development also brought along a list of hazards like corporate mono polies, child labor, political corruption, hazardous work ing conditions, urban ghettos that were finally addressed in a comprehensive way by the local, state, and federal governments who sought to rein in the excesses of industrial capitalism and develop a more rational and efficient public policy. A conservative Republican resurgence challenged the notion of the regulatory state during the 1920s when free enterprise and corporate capitalism witnessed a dramatic revival. But the stock market crash of 1929 helped propel the United States and many other nations into the worst economic downturn in history. The unprecedented severity of the Great Depression renewed public demands for federal government programs to protect the general welfare but employment restoration on a whole took place only after World War II. Captain Mahan argued that national greatness and prosperity flowed from maritime power and that modern economic development called for a powerful navy, a strong merchant marine, a leading advocate of sea power and Western imperialism, foreign commerce, colonies, and naval bases. Mahan, a self-described "imperialist," championed America's "destiny" to control the Caribbean, build an isthmian canal to connect the Pacific and Caribbean, and spread Western civilization in the Pacific. Eager for American manufacturers to exploit Asian markets, William H. Seward Seward believed the United States first had to remove all foreign interests from the northern Pacific coast and gain access to that region's valuable ports. To that end, he cast covetous eyes on the British crown colony of British Columbia, sandwiched between Russian America (Alaska) and Washington Territory. In 1891, Queen Liliuokalani, ascended the throne, she tried to reclaim a measure of power and to eliminate white control of the Hawaiian government. Hawaii's white population then revolted against the Queen and seized power. The American minister brought in marines to support the coup and within a month, a committee of the new government turned up in Washington with a treaty of annexation. The Hawaiians opposed the annexation but when the Japanese sent warships to take over the islands, McKinley responded by sending American warships and asked the Senate to approve a treaty to annex Hawaii. When the Senate could not muster the two-thirds majority needed
Saturday, November 16, 2019
Police Control of Juveniles Essay Example for Free
Police Control of Juveniles Essay The paper that was written by Donald J. Black and Albert J. Reiss Jr. started by the definition of the deviance as a behavior in a group wherein there is a chance that there is a sanction when deviant behaviors are detected. This control approach as defined by the authors is a process carried on with the analysis, detection and the process of giving the adequate sanctions in the process of policing the juveniles.            Donald J. Black, as one of the authors of the study, was a professor of the social sciences at the University of Virginia. He completed his doctorate at the University of Michigan during the nineteen sixties. He pursued his post doctoral studies at Yale Law School as a Russell Sage Fellow in Law and law and social sciences. After that, he moved to the Harvard University during nineteen seventy nine. Where he held appointments in law school and the sociology department where he also used to be in the Yale School. After that, he taught as Law School teacher when he moved to the University of Virginia in the nineteen eighties.Due to his professorship, he is able to teach in any of the different schools and departments of the university.            Due to his wide experience in teaching and studies, he has numerous publications in the sociology of morality, law and conflict. Due to the expanding works o f Black, it includes works such as theory of the differential success of ideas, a theory of scientific theory, theory of scienticity, and theories of the behaviors of natural beings. The 1994 theory Prize plus the Distinguished Book Award of the American Sociological Association due to his most recent work: the Social Structure of Right and Wrong. His other work also include: (1) Behavior of Law which was translated to different languages; (2) The Manners and Customs of the Police and Sociological Justice, and ; (3) an article which has won him the Distinguished Scholarship Award still from the American Sociological Association entitled â€Å"The Epistemology of Pure Sociology†a recent article that was published in Law and Social Inquiry. He was also an editor of the Oxford University Press for the books called â€Å"Studies on Law and Social Control†.            Moreover, his popularity made him invitees as speakers and lecturers to a number of countries in the world: Denmark, Finland, Sweden, France, Scotland, Poland, England and Japan. Furthermore, he is father and founder of a sociological class which includes no psychology or even people as such. This sociological class is known as pure sociology. This sociological class is believed to publish a book regarding the subject with the title â€Å" the Death of the Person†. Also, other works such as a book-length project about a general theory about the prediction and explanation of the existence and of struggle in human relationships.            Another author, Albert J. Reiss is considered one of the greatest influences of the Penn Criminology. Reiss works distinct and uniform emphasis on the organized field research and evidence-based policy is considered the trademark of Penn Criminology.            Albert Reiss has been the research director for President Lyndon Johnsons Commission on Law Enforcement and Administration of Justice during the nineteen sixties. Using laboratory like procedures and precision and direct observations, he has able to introduce a fresh way of studying violence. Due to his works, he has found out that the endangerment of having violence directly depends on the type of police encounter. The two types of police encounter is â€Å"proactive†and â€Å"reactive†. The first relies on the idea that the police has been invited by a person who is present in the area to intervene in the situation while the second one refers to the idea that the police has intervened in a situation even without the invitation of the people whoa are present in the scene. This means that the police has intervened in the situation at their own expense. From the results of the researches conducted by Reiss, he theorized that police encounters on situations with the consent of the people around brings about less resistance compared to the situations wherein the police has intervened on their own which brings about more resistance from the civilians that brings more violence. Reiss studies has made headlines that almost seventy five percent of all the white police exhibits racial discrimination against black civilians. However, the results of Reiss studies brings about the fact that there in no significant difference in the brutality of the police against black and white. He also found out that both races has been illegally assaulted and brutally treated in front of the public either during their arrest or not. Aside from Reiss project on police control, he also introduced the method of using surveys and studies of reported crimes. This method has detected high rates of undetected delinquent works among middle and upper class juveniles.            Reiss was born in Cascade, Wisconsin on December 9, 1922. He studied at Marquette University, however, he disturbed his studies by joining the US Army Air Corps in World War II by serving as a meteorologist. He finished his doctoral studies in sociology at the University of Chicago. While teaching at the university, he also led some studies regarding probation, juvenile and neighborhood delinquency. When he finished his doctoral studies during 1949, he was promoted to assistant professor. After that, he shifted to Vanderbilt University as he was delegated the chairman of the Sociology Department of the university in the 1952. After serving as the Chairman of the sociology department in the Vanderbilt University, in 1959, he moved to University of Iowa, then University of Wisconsin and then, finally serving as the chairman of sociology at the University of Michigan in 1961. He began doing his field research about police in the University of Michigan. And then, from 1970, until the year he retired in 1993, he began teaching at the Yale University. During his stay in Yale, he published â€Å"The Police and the Public†, his most influential writing about social organizations regarding police confrontation with citizens. He spent his time serving as a senior adviser to ranges of surveys, experiments and researches in Europe, United States and Asia.            Basically, the research that was conducted by Black and Reiss is about finding results on the official detection and countenance of juvenile aberrant. In the investigation, the study is centered on the specific conditions that would in effect cause the chance of having sanction by arrest with relation to the involvement of the police force in certain situations. In general, the study is about processing a control method for juvenile deviance. In relation, the study is also inclined to the interaction that is happening between the juveniles and the representatives of the police system. According to the research conducted: (1) most of the representatives of the legal systems engagement with juveniles would come up due to the direct response of the citizens who take the drive in mobilizing the police during situations; (2) a high fraction of juvenile and police encounters occurs due to reasons that are of minor significance; (3) t he chance of having certain sanctions due to arrest was found out to be very low for the juveniles who have had encounters with the police; (4) the chances of having arrest increases with the alleged seriousness of juvenile offenses as defined by the criminal law for adults; (5) the way the representatives of the legal force sanctions the juveniles is directly dependent on the preferences of the complaints of the citizens during encounters; (6) there is highly significant difference between the number of blacks that are detained than the number of whites detained, however, there is low or even no evidence of racial discrimination; (7) situational evidence is very important in correlating the act of juveniles in order for an arrest to take place; and, (8) the chances of having arrest is most likely in respectful juveniles than those who are disrespectful.            The research continues from the deviance definition and is defined as applicable to any class of behavior wherein there is a great possibility of a sanction that is negative and is regardless of its detection. From the eight ideas that were gained from the research, it was known that there are different factors that relates the detection of the negative sanctions particularly the sanctioning of juveniles. Therefore, the research was made in order for the instances and factors that requires control for the existence of the situation. Moreover, the aim of the research was definitely to discover and investigate the organization of deviance and control.            The study of Reiss and Black about the juvenile control has examined the officers and the representatives of legal systems encounter with the juveniles. They have employed a wide range of methods involving orderly approaches and systematic social observations. The research also took into account the actions that are done by the police and the juveniles in each of the different situations that they have encountered. They have also included the actions and reactions made by the police in their multiple attempts to resolve situations with juveniles. The research has also brought to public a more clear view of the kinds and varieties of offenses and situations in which juveniles can be involved. Moreover, the research also includes a broader scope on the situations that may bring about the juveniles into juvenile justice system and the like.            Generally, the research conducted by Black, Reiss and Lundman is focused on the decisions that are made by the members of the legal system when it comes to juvenile cases and in police-juvenile encounters. Another study conducted by Worden and Myers has similar scopes and documentations. This independent study in the other hand, is focused on the practices that can be observed in police and the representatives of the legal system during encounters and arrest of juveniles. This research also focused on the other forms anf kinds of the authorities that are used by the police such as, investigative tactics, advising, threats and commands. Still another study focuses itself on the contact records from 1968 to 1975 and analyzes the practices that are used by the police members in arresting juveniles. This research has been done Sealock and Simpson.            Generally, all of the studies that ere conducted were very similar to each other. They are focused on the decisions that are made by the police and the members of the legal system during or not during arrest and confrontations. All the researches aims to know the factors that helps the police and the legal system members decide on what certain actions are they going implement and what factors are they going to consider in implementing such actions.            There are also studies that only replicates the works of Reiss and Black. A study that is conducted by Lundman, Richard, Richard E. Sykes and John P. Clark entitled Prevention and Control of Juvenile Delinquency. For the author, Richard Lundman achieved his doctoral studies in the University of Minnesota in the 1973. Dr. Lundman is also an alumni and a distinguished professor at the Ohio State University. Lundmans areas of expertise is in the deviance, white collar and corporate deviance, criminology, juvenile delinquency rate, race, ethnicity, policing and gender. He has also garnered certain awards such as Excellence in instruction Award of the Department of 2002 Sociology Undergraduate Students at the Ohio University. Also, he is recognized as an outstanding faculty member of the Ohio State University during 1997.            This work has been repeatedly updated and in its third edition, the work has been really updated and has included primary trends in the environment. It also covers neighborhood and  individual based origins of juvenile delinquency. The research also covers the study on the problems which includes the minority problems of ever representation i n the justice system. The study also include the situations pertaining to diversion.  It is also concerned with the vital projects that are fundamentally shaping the ideas, decisions and thoughts or actions regarding crimes that are achieved by the youth. The author of the study also added the idea that the things that has been done in the past should also be the ones to be done in the future. He also believed that doing less to the juveniles than doing more to them will be of great help to them.            Primarily, the research that was conducted by the author of the replication of the works of Black and Reiss supports the ideas that were given by the first research. The second research that was conducted by Lundman also believes on the ideas regarding the effects and results given by the reactions of the citizens and the juveniles in certain situations. Moreover, ideas that were presented in the second research were only reiterations of the first research. However, there are only certain changes in the scope and the primary concern of the research. Generally, there the scope and the primary concern of the research was broadened in the second research. The first research has only limited its scope in the juveniles and the representatives of the legal system before engaging in arrests and sanctions. It is also concerned with the results and the effects of the reactions and actions of both the juvenile, the representatives of the legal system as well as the citizens that are present in the situation. However, in the second research, it mostly is concerned with the broadening of the scope and the concerns of the research. If the first research is only about the juveniles and the representatives of the legal system, the second research has also included the reasons and effects that brought about the reactions of youth and the reasons that bring them into crimes.            As a summary, the two researches that were conducted by the three different authors are really of great help to the society, representatives of the legal system but also to the juvenile personalities inside and even outside the corners of the prison cell. It also aids in bringing out the idea that the possibility of racial criticism that is believed to be experienced by the black juveniles. Racial discrimination is believed to have been done by the representatives of the legal system during situations wherein the ones that achieved crimes are black. Discrimination is also believed to have been practiced by the police during application of sanctions. For so long, racial discrimination among the blacks and the whites is very rampant and is still believed that it can be still observed in certain situations nowadays. However, due to the researches conducted, it was discovered that the belief that racial discrimination can still be observed in the police and the manner of application of the sanctions to the juvenile is denied. Also, the researches has also set the ideas regarding the actions and reactions that can be observed during police involvement in certain situations. Reference New York Times (2006) In Memoriam: Albert j. Reiss Jr. Retrived, November 30, 2007, from http://www.crim.upenn.edu/reiss.htm. Sage Publications. (1978). Police Control of Juveniles. Retrieved, November 29, 2007, from http://jrc.sagepub.com/cgi/content/abstract/15/1/74. URMMA. Juveniles, Police Model Policy. Retrieved December 1, 2007, from http://www.urmma.org/html/juveniles.html. Division of Criminal Justice (1990). Juvenile Matters. Retrieved December 1, 2007, from http://www.state.nj.us/lps/dcj/agguide/juvenile.htm. Sherman, Lawrence. Criminologist Albert Reiss Dies at 83; Pioneered Research on Violence. Retrieved December 1, 2007, from www.yale.edu/sociology/news/docs/reiss_obituary_nyt.pdf. SCCgov. (2007). Representation for Juveniles. Retrieved December 1, 2007, from sccgov.org/portal/site/scc/chlevel3?path=/v7/SCC Public Portal/. New Hampshire Bar Association. The Rights of Juveniles. Retrieved December 1, 2007, from http://www.nhbar.org/for-the-public/the-rights-of-juveniles.asp. Black, D. and Reiss, A. Police Control of Juveniles. American Sociological Review, Vol. 35, pp. 63-77.
Thursday, November 14, 2019
Shakespeares Hamlet Essays: Claudius - Guilty or Innocent? :: GCSE English Literature Coursework
Claudius: Guilty or Innocent?  William Shakespeare's Hamlet is a play that tells of a young man, Hamlet, who wanted revenge for the death of his father. After speaking with his father's spirit, Hamlet was led to believe that the person who murdered his father was his uncle, Claudius. Claudius kills his brother mainly because of jealousy, the crown, the queen and a hatred of his brother. Therefore Claudius is guilty of the murder of his brother. Claudius killed his brothe mainly because,he was jealous that his brother had it made. He had his kingdom, a beautiful queen(Queen Gertrude),and his son(Prince Hamlet) which would've taken over the kingdom when he died except Claudius, his own brother, killed him. We can see proof of Claudius's jealousy when Claudius hands Cornelius and Voltemand a piece of paper. In addition, Claudius says, "Though yet of Hamlet our dear brother's death the memory be green, and that it us befitted to bear our hearts in grief, and our whole kingdom to be contracted in one brow of woe, yet so far hath discretion fought with nature that we with remembrance of ourselves(pg.21)." Right there he's saying that his brother's death in memory be green, meaning maybe the green-eyed monster of jealousy. He couldn't stand to see his brother happy so he decided to kill him. Claudius feels guilty about killing his brother. We can see Claudius;s remorse when he is talking to God and gives his monologue about his his murder. Therefore, Claudius says, "My stronger guilt defeats my strong intent(pg.165)." This quote proves that Claudius realizes that he made a mistake and he also realizes that he cannot put everything behind him as mich as he wants to. Everything reminds him about his brother, the kingdom, the queen and the crown. Claudius is not better off now that he has killed King Hamlet. We can see proof of this when Claudius is giving his monologue. Claudius says, "Forgive me my foul murder? That cannot be, since I am still possessed of those effects for which I did the murder:My crown, mine own ambition, and my queen(pg.
Monday, November 11, 2019
Bicycle Braking Systems
Bicycle Braking Systems Year 11 Engineering Studies Merewether High School Nathan Dunshea 29/06/2012 Abstract: In this report a comparison of three Braking systems; Calliper, Drum and Disc will be made on a variety of areas including – * * Effectiveness * Performance * Features * Materials * Frictional Components * Difference from comparable car systems An Orthogonal and Pictorial drawing will also be provided on a selected section of one of the braking systems being compared. Introduction: Bicycle Braking systems are a means of which we are able to halt the movement of a bicycle through the expulsion of kinetic energy.The Kinetic potential energy that is present in a moving bicycle is converted in to 3 different forms of energy; heat, sound and light. This is done through the resistance of a wheel to move when a brake applies a frictional force against the spinning movement of a wheel. Three different types of brakes are generally used on bicycles today; the Calliper, Drum an d Disk systems. These three popular braking systems have their own unique set of advantages and disadvantages that persuade the population to purchase them. 2: Calliper Brake Diagram : Calliper Brake Diagram 3: Disc Brake Diagram 3: Disc Brake Diagram 4: Drum Brake Diagram 4: Drum Brake Diagram Procedure: I used the Internet to research pictures, articles and suppliers of Braking systems in order to access the appropriate information needed for this report. Results: Effectiveness, Performance, Features Comparison Effectiveness: 10: Cross-Section of a bicycle drum brake 10: Cross-Section of a bicycle drum brake The effectiveness of these Braking systems will be a measure of their ability to perform over a period of time.It is necessary for these brakes not to only perform well once, but over many instances, including moments of hard excessive braking. In today’s modern bicycle, many things will affect the braking systems ability to be effective. The weather, wear and tear over many uses, as well as the type of braking taking place can all have adverse effects on brakes. Drum brakes are not the most popular style of brake for a bicycle. This could be accredited to their effectiveness over time compared to both calliper brakes and disc brakes. Drum Brakes are typically very heavy, complicated to perform maintenance on and are often subject to brake fading.Break fading can be defined as the loss of braking force able to be exerted by the braking system at any point, and this often happens due to overheating as a result of consistent hard braking. Drum brakes are unable to dissipate heat anywhere near as efficiently as disc brakes as the frictional forces that turn kinetic energy into heat are all enclosed within the drum itself, which is often housed at the hub of the wheel. In fact, many companies have been forced to put warning labels on their hubs to make sure children aren’t unaware of the heat generated, and subsequently burn themselves.This mak es them particularly susceptible to brake fading, something that both disk and calliper brakes don’t have a great problem with. In adverse weather conditions, the drum brake can show of its unique asset both the disc and calliper brake does not have. The Drum brake is fully enclosed, and therefore is not affected by rain, mud and other substances that may impede the frictional force exerted on the wheel. 12: Disc brake to be fitted to a Mountain Bike 12: Disc brake to be fitted to a Mountain Bike Disc Brakes are very popular on Mountain Bikes, which require thick wheels and are often subject to muddy terrain.Because the disc brake is mounted to the hub, a certain clearance from the ground is maintained at all times, generally keeping mud from obstructing the pads and disc. If water is to get stuck under a disc brake’s pad, there are generally holes through which it can quickly escape so to not compromise the friction produced in the system. Touring bikes have been know n to prefer disc brakes to types of calliper brakes, as the long journeys and significant use of brakes would not wear out the rim as they do using a calliper brakes system.The typical Disc Brake system is a very adaptable structure as it can perform better than Calliper Brakes in the mud, rain and snow as the coefficient of friction isn’t as at risk of contaminants disturbing the system. Disc brakes are also less prone to brake fading when subject to long periods of braking pressure, as they are very good at cooling down compared to drum and calliper brakes. A disk brake is also less likely to cause a popped tyre, with the heat not being dissipated directly into the tyre as in calliper brakes. 14: Shimano Bicycle Caliper Brake 14: Shimano Bicycle Caliper BrakeCalliper Brakes are generally the most common of the braking system for the everyday bicycle. Excluding the original design quality of the equipment and materials, calliper brakes are often affected mostly by the moistu re that is on the rim, as that will significantly hinder the ability to stop. Tyre thickness can also pose a problem to the calliper braking system, as the arms will be under greater flexion, thus lessening brake effectiveness. However, the Calliper brake system is effective on the average road bike and is the simplest and easiest to perform maintenance on of all three designs.This system also has a very big ‘mechanical advantage’, meaning very little effort has to be put in by the rider in order to properly apply the brakes. Calliper brakes are also by far the lightest and least expensive, making them popular among non-competitive riders, with most road bikes still come fitted with this system. Performance: The performance of a braking system is based on the raw stopping power and ability for one single use. This comparison will be based purely on stopping power and performance, disregarding things such as; * Weight of system * Weather/Terrain Brake Fading * Heat Dissi pation The Disc Brake is said to have the greatest stopping power, and therefore provides least stopping distance, of all three systems. This means they are often fitted to competitive riders bikes, because they are often going a higher speed and therefore need the greater stopping power that the disc brake provides compared to that of the drum and calliper braking system. In a report By Guy Kesteven for UK organisation ‘What Mountain Bike’, a variety of disc brakes were tested from many different manufacturers to test the power of each system.The test was performed as follows: â€Å"All the brakes were tested with a 180mm rotor and a 50Nm force on the lever (1N is the amount of force required to accelerate 1kg at 1m/s2), with the stock pads. To fully bed in the rotors and pads, the brakes were given 60 one-second pulls at 15km/h, followed by 30 two-second pulls at 20km/h. After a 30-second cooling-down period, the testing began. With the wheel spinning at 30km/h, each brake was applied for three seconds and then left to recover for 10 seconds. This cycle was repeated 15 times. The results were then averaged out to provide a single power rating. – Guy Kesteven; What Mountain Bike. After the test had been completed, the Formula R0 disc braking system had the greatest power of all 33 parts tested. It was found to have a power of 124 Nm when stopping, which is equal to 12. 645 kilogram-force meters. Calliper Brakes have one of the best designs in terms of their Mechanical Advantage. Very little effort has to be put in by the user to have the brakes perform as well as possible. Disc Brakes have an overall stopping power advantage over the general calliper brake, however some versions of the calliper brake have a greater stopping power than the drum brake design.With the huge variety of designs in the field of Calliper Brakes, stopping power can range from quite poor to very high. An example of this stopping power is the test carried out by Mat t Pacocha in the June 2009 edition of Velonews. A group of Bicycle Calliper brakes were to be tested to measure their stopping power: â€Å"This test was performed on a flat, windless road. For each brake, the rider accelerated to 40km/hr then grabbed the brakes  hard  on a pre-determined mark and recorded stopping distance.This test was performed 10 times for each brake, and the stopping distances were averaged. †– Matt Pacocha; Velonews. At the end of the test, the Shimano 7900 dual pivot calliper brake was found to have the greatest braking force, with the shortest stopping distance of 7. 18 metres. It was also found that the average deceleration of the bicycle was 8. 59 m/s2, whilst the greatest deceleration was recorded at 10. 35 m/s2 (Over 1 G-force). Drum Brakes are less powerful than the disc brake, and therefore have a greater stopping distance in normal, controlled conditions.Compared to Calliper brakes it is not clear-cut which has a better stopping distance, as there are many different versions of each type of brake to choose from. However, it is said that the modern drum brake is able to provide a much smoother, more reliable deceleration than the majority of calliper brake systems. Features: Each of these braking systems have their own features which help to enhance the ability to stop the movement of a bicycle. Whilst some of these advantages are purely performance based, others may have features that are cost-effective or maintenance friendly.One of the most important features in the success of the disc brake is its ability to dissipate the heat generated from the frictional forces. Disc brakes are out in the open air with a large surface area, meaning the cooling process happens more quickly and efficiently. Another important, yet perhaps underestimated feature of the disc brake is it’s positioning. Disc brakes are well away from the tyres and ground, thus creating distance between the braking system and m ud, dirt and other potential environmental interferences.Drum brakes however, are certainly the best in resisting those environmental factors. As the braking mechanism itself is housed within a shell of sorts, no amount of weather can have an adverse effect on the ability of the drum brake to perform its task. Once installed, drum brake system is also very low maintenance, and often doesn’t have to be managed again until a new wheel is needed. Despite this, Drum Brakes can be a hassle if maintenance must occur, as they can be difficult to access because of the shell it is housed in. Calliper Brakes are generally the cheapest of the three designs available.As they are often mounted to the bicycle at one single point, accessing the brake pads and cables is made much easier than the other systems. Another feature that is useful on the majority of road bikes with calliper brake systems is the quick release mechanism. This feature is designed as to loosen the brake system enough s o the wheel can be removed without having to mess around with loosening brake cables as well. Materials used for construction and frictional components Brake Pads are perhaps the most important part of both the Disc and Calliper braking systems.The brake pad is generally made from a product that possesses a moderately high coefficient of friction, but also depends on the materials ability to absorb and dissipate the heat produced in the process of braking. If these criteria can be met without having a negative impact on overall braking performance, an appropriate material has been found. In years gone by, an asbestos based compound was the most common material from which brake pads would be made, however because of the toxic nature of asbestos that practise no longer allowed. The modern bicycle Brake Pad is enerally made from rubber compound. The rims on bicycles directly affect the performance of the Calliper braking Systems. Some bike rims today are made from an aluminium alloy, w hich provide a coefficient of friction when in contact with the rubber composite of the brake pads of approximately 0. 4. Other materials, such as various Carbon steels, have recently become more popular as they are light and aerodynamic. However, they do not provide a very good frictional force between the everyday brake pad, and so other materials are often preferred by the everyday cyclist.Calliper brake systems also have brake cables that transfer the motion actuated by the rider from the brake lever to the braking system itself. These brake cables are made from thin wire steel that has been braided together to improve its tensile strength and ability to perform. The Disc in the Disk brake system is an integral part of the bicycles stopping power. The Brake pad (rubber composite) must have a high enough coefficient of friction when applied to the disc to halt movement with damaging the surface.To provide this, the disc is made from metal, with stainless steel being popular among mountain bikes. A brake drum has an outer shell in which the braking system itself is contained. This outer shell is subject to weathering from the outside and heat from within. With this in mid, cast-iron is generally the material chosen as it can cope with these two burdens other materials could falter under. The shoes of the Drum brake are the parts that push outwards to produce the frictional forces needed in the brake design.These brake shoes are generally made when two pieces of sheet steel are welded together. After they are welded together, the frictional material known as brake lining is connected on to the sheet steel with either adhesive resin or other means such as a rivet. It is also important to remember that the rubber composite of bicycle tyres also has frictional forces acting from the material it is rolling on. For instance, if a cyclist was riding along a concrete surface, the coefficient of friction would be 0. 8, much higher than that of rubber or brake lining to metal (0. ). Thankfully, the relatively light weight of the human body – compared to the force exerted by our mechanical braking systems – allows us to still move along these surfaces. (FF = ? RN) How they differ from comparable car systems On most bicycles, the braking systems installed will often be very simplistic and just there to do the job. Most will have the same type of brake on both front and back wheel, with the braking of the bike mostly relying on human action with levers and cables, as well as the mechanical advantage some of these designs provide.However, when upgrading these systems to work on a much heavier vehicle such as a car, many things can change. It is not uncommon to have different types of brakes on the front and back set of wheels, and hydraulics become a very important part of stopping your car. In today’s modern designs, at least one set Disk Brakes are fitted to almost every car on the road. Disk Brakes are the most effective type of braking system that we could fit to our cars, however, it is still common for the front brakes to be disk, but the rear to be drum brakes.Drum brakes can be used as the parking brake, and by fitting them to the rear of the car, companies can save money by not having to install another braking system. The Disc Brake in a car is obviously in a much larger scale than that of a bicycle. Despite this, the two systems are very similar in the basic design concept. Strength of this part however, must be much greater when installed in an Automobile. Winnard & Sons Ltd, a company based in the UK that deals with commercial vehicle braking components, has a guideline to the tensile strength on the brake contact surfaces of their products. Guideline tensile strength on test pieces machined from brake drum/disc contact faces: – 241 N/mm2 European Requirement minimum – 35,000 psi Amercian Requirement minimum†– Winnard & Sons Ltd: Brake Disc and Brake Drum Material S pecification The materials used in the brake pads of both the disk and calliper brakes are different when they are made for cars. When halting the momentum of a car, the brake pad is put under a much greater force than when stopping a bicycle. This is due to a number of things, including the speed at which the car is travelling and the mass of the vehicle, both of which are generally higher in cars.The metals used are usually steel, copper or brass fibres, as well as a mixture of many different composites including – graphite, iron oxide, glass fibres, phosphate and rubber – that are bonded together with a resin of phenol formaldehyde. The metals that are added help to increase life span by improving the ability of the compound to dissipate heat at high speeds. The complexity of all three designs is greatly heightened when moving from bicycle to motor vehicle. One aspect of Motor Vehicle braking that creates extra pressure is the hydraulic action of the brakes.Hydrauli cs rely on brake fluid, typically containing ethylene glycol, to transfer pressure from the controlling unit to the brake mechanism. In a motor vehicle, drum brakes often serve a specific purpose that they would be useless for when installed on a bicycle – the park brake. As I stated earlier, these Drum brakes are fitted to the rear wheels and can save companies significant amounts of money by not having to install a completely separate parking brake. As this asset of an emergency brake is vital to a larger system, not only are they more common in cars, but they must also be bigger and exert a greater force.These three types of braking systems hold the same principles when applied to a greater size vehicle in a motor car, however many things must change to accommodate these increased forces. Conclusion: Each of these three braking systems are often used by a specific type of bicycle with a specific need. An example of this is Disc brakes being preferred by those who ride eith er Mountain or Touring bikes. As shown by the two field tests referenced in this report, completed by Velonews and What Mountain Bike, both Calliper brakes and disc brakes both have a very big potential to have immense stopping power.But to have that stopping power, the proper materials with appropriate frictional forces would have had to been in place. At the absolute top of the line models, every little detail is considered, i. e. : * * Weight * Frictional Forces * Materials * Angle * Type of System It was also discovered that as we transition from bicycle to car braking systems, many things must be altered. Although the basic engineering principles are often the same, there are many variables that are altered to improve to braking systems to cope with the extra forces exerted by a motor vehicle.For example, the change in materials of brake pads to accommodate the much more intense levels of heat being produced when heavy braking is taking place. I believe this report reveals that the braking system you own can make a big difference on effectiveness and performance. The features, materials used and frictional forces in play can all be positive or negative depending on the type of riding taking place. Recommendations: I recommend selecting one of these three types of braking systems based on what their use in the long run will be.If you plan to use the bike for competitive purposes when increased stopping power is necessary, I would suggest purchasing a Disc brake system. However, if the bike is simply for leisure, perhaps the more cost effective Calliper Brake system would better suit. If you are planning to ride in muddy areas where the possibility of substances interfering with the frictional forces throughout the braking system, the fully enclosed drum brake system could be the appropriate option. However, if you wish to simply have the greatest overall stopping power, I would recommend a Disk Brake system be installed. The most mportant thing to remember is that every situation is unique, and to do research in order to attain the correct brake for your needs. Bibliography: * http://www. edmunds. com/car-technology/brakes-drum-vs-disc. html * http://www. bikewebsite. com/bicycle-bra. htm * http://www. jaxquickfit. com. au/brakes * http://www. exploratorium. edu/cycling/brakes2. html * http://bikeadvice. in/drum-brakes/ * http://www. sheldonbrown. com/gloss_dr-z. html#drum * http://www. livestrong. com/article/340500-adjust-bicycles-drum-brakes/ * http://www. skyshop. com. au/LANDING. pdf * http://www. razyguyonabike. com/doc/page/? page_id=8174 * http://sheldonbrown. com/calipers. html * http://www. bicyclestore. com. au/parts/brakes/calliper-brakes. html * http://www. 123helpme. com/view. asp? id=57299 * http://www. bike-riding-guide. com/bicycle-brakes. html * http://eecycleworks. com/VNJune%20BrakeTest. pdf * http://auto. howstuffworks. com/auto-parts/brakes/brake-parts/brake-calipers2. htm * http://urbanvelo. org/torker-graduate -commuter-bike-review/ * http://www. cycle-systems-academy. co. uk/index. php/topics/brakes/brakes-theory/mechanics-of-brakes/mechanics-of-the-system? tart=5 * http://www. physicsforums. com/showthread. php? t=158582 * http://www. longjohn. org/bremsen/bremsen_en. html * http://www. abcarticledirectory. com/Article/Bicycle-Brakes-Guide/786406 * http://www. cdxetextbook. com/brakes/brake/disc/brakefrictionmat. html * http://www. bikeforums. net/archive/index. php/t-302000. html * http://www. alibaba. com/showroom/aluminum-bike-rim. html * http://cars. about. com/od/thingsyouneedtoknow/a/discvsdrum. htm * http://www. fezzari. com/support/rb_brakes; * http://bicycletutor. com/sidepull-caliper-brakes/ * http://www. icycling. com/bikes-gear/bikes-and-gear-features/big-squeeze-road-disc-brakes * http://www. unitconversion. org/moment-of-force/newton-meters-to-kilogram-force-meters-conversion. html * http://www. bikeradar. com/mtb/gear/category/components/disc-brake-systems/product/review- formula-ro-12-46051 * http://www. winnard. co. uk/downloads/twcbd1_material_specification_2011. pdf * http://www. autoshop101. com/forms/brake03. pdf * http://www. pbr. com. au/technical/documents/hydraulicbrakesystemsguide. pdf * http://www. tcbbrakesystems. com/hdopenroad-text. html * http://www. sae. rg/events/bce/presentations/2009/okamura. pdf Appendix: Braking Power test – Matt Pacocha, Velonews: June 2009 Braking Power test – Matt Pacocha, Velonews: June 2009 What Mountain Bike UK: Calliper Brake Power Testing â€â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€œ [ 1 ]. http://www. edmunds. com/car-technology/brakes-drum-vs-disc. html [ 2 ]. http://www. bikewebsite. com/bicycle-bra. htm [ 3 ]. http://www. jaxquickfit. com. au/brakes [ 4 ]. http://www. jaxquickfit. com. au/brakes [ 5 ]. http://www. exploratorium. edu/cycling/brakes2. html [ 6 ]. http://bikeadvice. in/drum-brakes/ [ 7 ]. http://www . heldonbrown. com/gloss_dr-z. html#drum [ 8 ]. http://www. livestrong. com/article/340500-adjust-bicycles-drum-brakes/ [ 9 ]. http://www. exploratorium. edu/cycling/brakes2. html [ 10 ]. http://sheldonbrown. com/sturmey-archer_3-spd. html [ 11 ]. http://www. skyshop. com. au/LANDING. pdf [ 12 ]. http://www. mountainbikestoday. com/mountain-bike-resources/should-my-mountain-bike-have-disc-brakes; [ 13 ]. http://www. crazyguyonabike. com/doc/page/? page_id=8174 [ 14 ]. http://sheldonbrown. com/calipers. html [ 15 ]. http://www. bicyclestore. com. au/parts/brakes/calliper-brakes. html [ 16 ]. ttp://www. fezzari. com/support/rb_brakes; [ 17 ]. http://www. 123helpme. com/view. asp? id=57299 [ 18 ]. http://www. bike-riding-guide. com/bicycle-brakes. html [ 19 ]. http://www. bikeradar. com/mtb/fitness/article/how-we-test-hydraulic-disc-brakes-24345/ [ 20 ]. http://www. unitconversion. org/moment-of-force/newton-meters-to-kilogram-force-meters-conversion. html [ 21 ]. http://www. cycle-sys tems-academy. co. uk/index. php/topics/brakes/brakes-theory/mechanics-of-brakes/mechanics-of-the-system? start=5 [ 22 ]. http://eecycleworks. com/VNJune%20BrakeTest. pdf [ 23 ]. http://eecycleworks. om/VNJune%20BrakeTest. pdf [ 24 ]. http://auto. howstuffworks. com/auto-parts/brakes/brake-parts/brake-calipers2. htm [ 25 ]. http://urbanvelo. org/torker-graduate-commuter-bike-review/ [ 26 ]. http://www. physicsforums. com/showthread. php? t=158582 [ 27 ]. http://www. longjohn. org/bremsen/bremsen_en. html [ 28 ]. http://www. tcbbrakesystems. com/hdopenroad-text. html [ 29 ]. http://www. abcarticledirectory. com/Article/Bicycle-Brakes-Guide/786406 [ 30 ]. http://bicycletutor. com/sidepull-caliper-brakes/ [ 31 ]. http://www. cdxetextbook. com/brakes/brake/disc/brakefrictionmat. html [ 32 ]. ttp://www. alibaba. com/showroom/aluminum-bike-rim. html [ 33 ]. Paul L. Copeland, Engineering Studies – The Definitive guide [ 34 ]. http://www. bicycling. com/bikes-gear/bikes-and-gear-featu res/big-squeeze-road-disc-brakes [ 35 ]. http://www. bicycling. com/bikes-gear/bikes-and-gear-features/big-squeeze-road-disc-brakes [ 36 ]. http://www. autoshop101. com/forms/brake03. pdf [ 37 ]. Paul L. Copeland, Engineering Studies – The Definitive guide [ 38 ]. Paul L. Copeland, Engineering Studies – The Definitive guide [ 39 ]. http://cars. about. com/od/thingsyouneedtoknow/a/discvsdrum. htm [ 40 ].
Saturday, November 9, 2019
Corporate Social Responsibility as Business Strategy Essay
There is a visible attention being paid towards social and environmental consequences of business and yet performance in this front is far from satisfactory. Common trait seen across companies is that social concern and business are seen as two independent responsibilities and often at loggerhead. As a consequence, companies lose focus of how social responsibility could have been integrated with the long term business outcomes. Businesses across the world are so obsessed with the immediacy of results that they cannot sight the vast opportunity that discharging of social responsibility holds for the long term sustainability of the organizations. As a result, based on the maturity of strategic thinking in the company, CSR is being implemented in one or more of the following ways as shown here: CSR as Reactive strategy CSR has in general been a reactive strategy for reviving drooping fortunes of the company by gaining the confidence of the communities in which they operate. The case of Shell in Nigeria and that of Nike in Asian countries are just two examples to quote. With such instances on the rise companies have started adopting a â€Å"proactive approach†analyzing the cost of not discharging the social responsibility and as a result do the bare minimum to pull on and thus minimizing their spending on this account. CSR is viewed by these companies as a cost and compulsion. This approach only obscures a business from identifying the real potential CSR holds with respect to their core business. Any complacence by such companies may result in the kind of corporate scandals that we are comming across today. Corporate misdeeds are indeed costly, if caught. CSR as Image building exercise Efforts of companies to recover from the effects of not discharging social responsibility can broadly be classified as damage control exercise as far as their image is concerned. Here the businesses have their back against the wall. However, CSR today is seen by companies as an opportunity for building corporate image. Keen on drawing attention of media and general public, companies announce their plans for various kinds of philatropic activities. There is nothing wrong with this kind of approach, except for the fact that such initiatives are not emphasized in the maze of important and urgent business calls. If a company can develop a systematic and delibrate approach for maintaining the focus on social welfare activities, this will not only enhance its image in the immediate future but consistency on this front will help the company in building a positive reputaion of societal concern. Such image will definitely help the company in its future business forays in the region. On the other hand, the image building campaign includes CSR reporting where a series of disjointed anecdotes of companies’ contribution to society are highlighted, which are in no way related to implementation of the business strategy of the company. This underlines the fact that potential of CSR as a tool for image building is more easily comprehended by corporate offices rather than as a means of creating a sustainable business. CSR for improved operating efficiency There are other set of companies that take care of environment because not only does it help in operating with in the environmental norms set by statutory authorities but also reducing their costs by improving operating efficiency. Operating barely with in the norms set by statutory authorities is being in the compliance mode. As companies deliberately plan and move beyond the compliance mode, find the case for integration of CSR and business goals, where improved productivity or operational efficiency in current time frame also results in better environmental conditions that fosters better living conditions for future generations. This in fact is a business necessity today for improved profitability for industry and cleverly used by companies for projecting a business case for CSR and showcasing the integration of CSR and business outcomes. CSR as Source of competitive advantage Business must have clear understanding of the communities that they impact and must give a serious thought to the question – How the strategy helps these communities grow qualitatively along with the business in the short and long term? The answer to this question may not be obviously forthcoming but an open debate among the executives and strategic managers may open up options, that may help improve the quality of life indicators for the communities around in a way that enhances business opportunity for tomorrow if not the current profitability. The challenge for industry today is to identify social issues that drive its competitiveness both now and in the future. For this to happen managers must first believe that social concern or CSR as it is popularly known is a source of business opportunity and competitive advantage. This integration then would pave way for all round sustainability and growth. Sooner than most of the experts suspect, the issues relating to climate change and social responsibility in the area of operations will be decisive factors for survival of businesses. CSR has the potential to change the way business is conducted the world over.
Thursday, November 7, 2019
Tahani ALjashaam Essays - Cognitive Disorders, Learning Disabilities
Tahani ALjashaam Essays - Cognitive Disorders, Learning Disabilities Tahani ALjashaam English 091 Mrs. Pike April 4, 2016 Alzheimer's disease Alzheimer's disease is the most common form of dementing illness. Its incidence increases as person get older. Alzheimer's disease (AD) is a progressive, degenerative disease that attacks the brain, causing impaired memory, thinking and behavior. Alzheimer's disease robs people of their memory. At first people have a hard time remembering recent events, though they might easily recall things that happened years ago. Alzheimer's Disease: Effects, Symptoms and Treatments. Alzheimer's disease as defined earlier is disease that affects the neurons of an individual thus degenerating them. The affected individual has some characteristic behaviors due to the deteriorated neuron, poor thinking, lose memory and may lead to dementia. The disease has the capability of completely shutting down individual intellectual abilities and rendering one useless in socially and physically. Other side of Alzheimer's impacts are on the people who are closest to them. Family members have to take on different responsibilities when a relative is diagnosed with Alzheimer. They may become caregivers because as Alzheimer's disease progresses, you or others in your family may find the changing roles tough to accept. When it happens, it can lead to some confusion about how to act. It sometimes take a while to figure out just who will do what. The disease has known symptoms that enable medics to identify it and place the patient under special care necessitated for individuals suffering from it. The symptoms are either behavior or cognitive in nature. Some of the symptoms that come from an individual cognitive nature or behavior include confusion, disorientation, and memory loss. Additionally such individual loss the power of abstract reasoning, they suffer from hallucination, insomnia, depression and wandering over an empty place are some of the behavioral phenomena's that an individual suffering goes through. Alzheimer's symptoms has three common stages from its initial infection that a patient suffers before the final stage which is death. As know each disease has treatment, but there is currently no cure for Alzheimer's disease. At same time there is a lot of that can be done to enable someone to live well with the conditions. This will involve drug and nondrug care, support and activities. The drugs can ease some of the symptoms in some people. They can slow down how quickly the disease gets worse, and help the brain work better for longer. So what? Alzheimer's disease is an infection that mostly dangerous to the elderly and the immune compromised in the society. Therefore, it is advisable for such people to given the best medical care for individual suffering from such infection. Medically, there are several ways through which such disease can be controlled and enable the patient to live a better life.
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