Programable logic controllers (PLC) Essay Example | Topics and Well Written Essays - 750 words

Programable logic controllers (PLC) - Essay Example On its site, Wikipedia says a PLC is used for the automation of electromechanical processes for example controlling factory machinery or running amusement rides. It says that its function is unlike a computer that is built for a general purpose, and that it is designed to accommodate multiple inputs and output arrangements, resistant to vibrations, impact or temperature changes. The controlling programs are generally stored in a non-volatile memory as these controllers operate in different kinds of environment, fitted into machines where the controlling program must be kept stable at all times. They are designed for real-time use and are often subjected to extreme environments where it cannot afford to malfunction; its circuitry keeps a check on multiple sensor inputs which control the output actuators, for example, solenoids, lights and valves (Blacharski, 2003). The first Programmable Logic Controller to be developed was by General Motors in 1968 when its Hydramatic Division wanted to counter the soaring costs involved in the existing inflexible relay-controlled systems. The starting PLCs had relay functionality, substituting the traditional hard-wired relay logic which used electrically run devices to mechanically switch circuits. They offered a lot of advantage as they were far easier to use in an industry; the installation wasn’t tough, they needed less space and they were re-usable. The benefit of PLCs quickly caught on to other businesses like food, beverage and manufacturing and by 1971, they were providing relay replacement which was the first step to contr ol automation (Bryan and Bryan 1997, 16-18). The CPU, consisting of the processor, memory system and the power supply runs all PLC activities. The I/O system is physically connected to devices used in the control of a process or machine and its interface provides the connection between the CPU, the information providers

Terrorism Essay Example | Topics and Well Written Essays - 3000 words

Terrorism - Essay Example One thing which is common in all the terrorist attacks is the involvement of the political motive. It is the action on behalf of a political cause. Sometimes the cause was on national grounds such as the separation of Russia from Chechnya or the separation of North Island from Great Britain. Sometimes the cause was the grievances against the American government which led to the World Trade Center attacks or Oklahoma City bombing. There is no private motivation of the attackers of all these incidents. There is always a political agenda which is accomplished by means of these attacks. The two many factors of terrorism are publicity and the game of psychology. The aim is to capture the attention of all the people around the globe by making the attack more dramatic i.e. killing a large number of people to politically motivate violence. According to Peter Kropotkin, a ninth century anarchist, terrorism is ‘propaganda by deed’ by which groups particularly small in number recei ve the attention for a cause. In this paper, the quote of Noam Chomsky which says ‘Terrorism is simply what our leaders declare it to be is discussed with its implication for law/ lawyers. Noam Chomsky is an American linguist, philosopher, cognitive scientist and political activist. He has been writing on politics and language for the past forty years and is one of the most prominent and original social critics of his times. He is the eight most cited authors and is known as the ‘most cited living author’. The first question that must be answered is that whether an event is declared as terrorism just because the most powerful leaders declare it as terrorism or there are other factors that lead to this conclusion. 1 There have been many instances where the politicians make clear predictions about an event just because they are some hidden goals in such goals and simple declare an events as a form of terrorism. If nothing happens as such they say that it is because of the tight security conditions that made it unsuccessful whereas if a leader is on a shaky ground then all types of events are expected to be blamed as terrorism attacks. It is also the responsibility of the media that provide such inadequate and wrong assumptions regarding an event. All the happenings are a repetition of the same tasks and different reasons are given to make the people fool about it. These protocols are backed by honourable leaders who just condemn such acts by their strong words of cowardice. The usage of queen’s language in public speaking is just a method to gain trust of the people to make them sure that the nation is in the safe hands. Who are the real terrorists? Is it the leaders or the terrorists who should be called as the real terrorists in the interest of the common man? When a leader declares war on terrorism, we don’t look beyond the terrors that are systematically placed upon the humanity. When hundreds of people are just killed for th e sake to counter the issue of terrorism then it is considered as enforcement efforts. The leaders claim that they are in a position to combat these evil acts. My question is same as Noam Chomsky that when a leader doesn’t promote terrorism then why one should participate to make it worse. This means that leaders are not less culpable. Here are a few examples to support my argument: In 1980’s, a former leader of the CIA in Central America informed on record about his

Scientific versus Industrial Revolutions Essay Example | Topics and Well Written Essays - 250 words

Scientific versus Industrial Revolutions - Essay Example One revolution preceded the other because every revolution is based on man’s need and understanding at that time. If there was a need to increase production to meet the demands of society, then new ways of doing things will be invented and eventually this may lead to a scientific or industrial revolution. These revolutions only occur in certain parts of the world because not all nations have the resources to carry out a certain revolution. Some countries may not have the technically-skilled people to carry out the change. Furthermore, aside from the lack of resources, some countries may not be prepared or ready to accept a new idea or concept. Other regions may find it difficult to leave their beliefs and ways of doing things. One does not think that this would be true today because with globalization, it would be very easy for change to occur simultaneously in different parts of the world. Moreover, countries have no choice but to accept the new changes, else they will be left out. They will not be globally competitive; thus, may result in a slow growth in their

Is there a necessary connection between a philosopher's politics Essay

Is there a necessary connection between a philosopher's politics and their philosophy - Essay Example It should be noted that Heidegger was forced into the sidelines within only months of joining the party and despite the claims that his philosophy is compatible to Nazism, it actually went in the opposite direction. Heidegger’s philosophy was based on an attempt to understand Being, and to address it as a problem that philosophers throughout history had failed to address. He believed that an understanding of being was necessary to ensure that human beings were not only able to understand themselves, but the world around them as well.2 This is in complete contrast with Hitler’s and Nazi policies, which often concentrated on the promotion of the Aryan race as well as the development of social programs designed to destroy rather than to develop and understand. When compared to Heidegger’s philosophy, which advocated for the universality of the human race, the basis of the social programs promoted by the Nazi regime was to ensure that racial purity for the Aryan race was maintained at all costs. This is because it was believed that the German nation had become weak and would not be able to continue retaining its superior status if undesirable individuals were allowed to survive .3 One of the cruellest of these social policies was that of the forced sterilization of those individuals who were believed to be from lesser races and who carried any form of genetic weakness. In order to make this policy effective, laws were put in place to ensure that doctors provided all the information concerning their patients to the state so that the latter could be able to determine those individuals who had the desirable characteristics to ensure the creation of the German master race. A process where individuals could report others who they suspected of being genetically weak was made possible and this ensured that the Nazi government was able to get to as many people

Concert Report Essay Example | Topics and Well Written Essays - 500 words - 8

Concert Report - Essay Example In readiness for the concert, I enjoyed a special dinner prepared for the audience. More specifically, LA Phil staffer introduced us to the evening classical concert amidst cheers from the audience. It was such a refreshing and joyous feeling to be part of this audience. The pianist and concert conductor, Christian Zacharias opened the Los Angeles Philharmonic Classical Music concert with a fascinating performance that left the audience in party mood and in happy feelings. The conductor manifested his creativity and perfection in playing neo-classical Danses concertantes to the enjoyment of the audience that kept their clapping and cheers for the longer part of his performance. The rhythm and the matching beats were resoundingly entertaining and seemingly derived the destined message in a light yet refreshing tone. The Concertmaster who played the Bach violin with immense energy and fun derived a sweet feeling as the audience enjoyed every tone, beat, and the rhythmic movement of his body. Indeed, Martin Chalifour left the audience craving for more of artistic expertise despite playing numerous sets of refreshing music. At some point, the band sought to remember the depressing feelings that Robert Schumann felt during their performance. This led to a sad feeling as the audience identified with the band’s expression of Schumann’s sad encounters. Nevertheless, Christian Zacharias led the band in clear beats, swift body movement, and rhythmic music flow to the amazement of the audience, which exhibited deep feelings towards the message communicated by the performers. Furthermore, the Walt Disney Concert Hall offered a resounding bass response, which completed a sweet tonal variation with the joyous violin. As such, I was able to identify and enjoy every tone, beat, and rhythms from the performers. However, at some point, the resounding bass response led to a booming sound, which disturbed my hearing thus creating a disturbing feeling. At the same time,

Primate comparison Essay Example | Topics and Well Written Essays - 750 words

Primate comparison - Essay Example The diet of the animal includes sap, fruit, arthropods as well as nectar. The animal unlike other animals such as the Bengal Slow Loris does not in any way show forms of sexual dimorphism with an increase in weight. In fact, the vestigial tail that exists within the animal is often hidden beneath the fur and is reduced to what can be described as a stump. The primate has a toothcomb; this means that it has six teeth that are forward facing on the bottom of the jaw (Wiens, 2002). These teeth are mainly incisors and canine teeth. The structure of these teeth is often used to graze off gum when it comes to the process of foraging. The animal excretes a brawny smelling fluid from the glands used in communication. The Sunda Slow Loris often moves swiftly through trees with its four limbs. Callithrix pygmaea often known as the pygmy marmoset can be described as new world monkey species that is often native to Peru, Brazil, Bolivia and Colombia. Its range often stretches expansively over the Andrean foothills of the Southern Colombia to the Southeastern Peru (Townsend, 2001). The pygmy marmosets often live and thrive in a multistratal river edge forests at different and diverse lower evaluations. The pygmy marmosets are often described as the smallest extant monkeys, this is because they have an average body length of 13 cm. The animal has a coat of buff as well as grey fur that is marked with yellow, green as well as black ticking on the head. Infants initially have grey heads as well as yellow coats that are covered with black ticking and they exhibit the adult pattern with the first month life. Although the pygmy marmosets are not often considered as being sexually dimorphic, the females are often known to be slightly heavier than the males. Longer hair that exists around the face as well as the neck often gives the pygmy pygamae the facade of a lion like mane. The animal has hindlimbs are often

Global Operations Management Essay Example | Topics and Well Written Essays - 1000 words - 1

Global Operations Management - Essay Example As manufactured products are tangible, customer demand can be anticipated and products may often be produced, transported, and held win inventory until customers need them. This allows manufacturers flexibility in deciding when to produce products. Inventory can be used as a buffer between a stable production capacity and a highly variable customer demand. This means that when production levels are held constant, in periods of low demand inventory levels of finished goods will climb, and in periods of peak demand inventory levels of finished goods will fall. This is not to say that all manufacturers inventory finished goods, because some manufacturers choose to wait until products are demanded, then produce the products and ship them directly to customers. Services cannot ordinarily be produced in advance of customer demand and must be delivered to customers at the time of demand or later. This means that service operations must ordinarily plan production levels to approximately equa l customer demand. With manufactured products, customers do not ordinarily intrude into the manufacturing process. In fact, customers have little contact with the manufacturing system in most cases. In service operations, however, customers are routinely involved in the production process. In such service operations such as hospitals, restaurants, and banks, the customers enter the production process, are routed to the necessary service operations, and exit from the service system. In almost all services, operations personnel need training in people skills because the key element of quality control is the way in which operations personnel conduct their transactions with customers. Service characteristics include: Intangible outputs Outputs cannot by inventoried Extensive customer contact Short Lead times Labor intensive Services quality subjectively determined Manufactured product characteristics include: Tangible products Products can be inventoried Little customer contact Long lead times Capital intensive Product quality objectively determined 2. The six major components of operations strategy include: 1 Positioning the production system 2 Product/service plans 3 Outsourcing plans 4 Process and technology plans 5 Strategic allocation of resources 6 Facility plans Operations strategy is a long-range game plan for the production of a company's products/services and provides a road map for what the production or operations function must do if business strategies are to be achieved. Operations strategies include decisions on such issues as what new products or services must be developed and when they must be introduced into production, what new facilities are required and when they are needed, what new technologies and processes must be developed and when they are needed, and what production schemes will be followed to produce products/services. 3. Competitive priorities can be thought of as the things that customers want from products/services; thus, they can be used s tools to capture market share. But, all of these competitive priorities cannot ordinarily be used for a single product. Once the competitive priorities are set for a product or service, operations strategy must then determine the required production system needed to provide the priorities for the product or service. The