Thursday, May 14, 2020
The topic of The American Dream has been brought up on many occasions. The arising issue that still ascends is whether or not The American Dream is alive or dead in the United States. The American Dream has come to the generalization of the personal perspective of any individual. The history of The American Dream has always gone back to the common man thinking of their future generations to come and how he will implant a positive outcome throughout it. Many now believe that the ideal plan of The American Dream cannot even be met anymore. Values and beliefs are now being questioned towards the aspect of upward mobility, the cost of education, jobs, and even affordable housing. Referring to an executive editor and vice president of Time Reporting, he states, Ã¢â¬Å"combined with a formidable American work ethic, made the pursuit of happiness more than a full-time propositionÃ¢â¬ (Meacham, Keeping The Dream Alive). This statement is targeted towards the actual definition of what The American Dream actually meant in various societies in the past. Happiness and a full-time of gratitude were critical aspects towards being met because it was the initial reason for this ideal. Some of the key causes and components that affect the way The American Dream is supposed upon today is the basic principles of economics, education, and a downward spiral. These reasons lead to The American Dream being considered in a diverse way with much complexity. The American Dream was different from the past andShow MoreRelatedImmigrants And The American Dream1362 Words Ã |Ã 6 PagesImmigrants and the American Dream In the article Ã¢â¬Å"The American DreamÃ¢â¬ , by James Truslow Adams in The Sundance Reader book, he stated that the American dream is that dream of a land in which life should be better and richer and fuller for everyone, with opportunity for each according to ability or achievement. It is a difficult dream for the European upper classes to interpret adequately, and too many of us ourselves have grown weary and mistrustful of it. It is not a dream of motor cars and highRead MoreThe American Dream By Kimberly Amadeo1637 Words Ã |Ã 7 PagesNowadays, a large number of people migrate to the United States to work and achieve the American Dream. According to the Article Ã¢â¬Å"What is the American Dream?Ã¢â¬ by Kimberly Amadeo, Ã¢â¬Å"The American Dream was first publicly defined in 1931 by James Truslow Adams in Epic of America. AdamÃ¢â¬â¢s often-repeated quote is, Ã¢â¬ËThe American Dream is that dream of land in which life should be better and richer and fuller for everyon e, with opportunity for each according to ability or achievement.Ã¢â¬â¢Ã¢â¬ There are many peopleRead MoreAnalysis Of The Movie The American Dream 754 Words Ã |Ã 4 Pages Nyreel Powell Ms. Jones American Literature 1 June 2015 The American dream in A Raisin in the Sun Have you ever had a dream and it didnÃ¢â¬â¢t come how you wanted it to be? Have you ever had accomplishments that you wanted to achieve but people were getting in the way of them? The four main characters in this book all have good dreams but there are people in the way of getting to those dreams or their dream is too high to accomplish. A Raisin in the Sun a play written by Lorraine Hansberry, andRead MoreSister Carrie and the American Dream1618 Words Ã |Ã 7 PagesThe American Dream is surely based on the concept of Ã¢â¬Å"Life, Liberty and the Pursuit of HappinessÃ¢â¬ but it is above all, a matter of ambition. James Truslow Adams, an American writer and historian, in 1931 states: life should be better and richer and fuller for everyone, with opportunity for each according to ability or achievementÃ¢â¬ , which not only points towards a better standard of living for Americans but also denounces a degree of greed in the US society. Ambition not only Ã¢â¬Å"killed the catÃ¢â ¬ butRead MoreGrapes Of Wrath And The American Dream1644 Words Ã |Ã 7 PagesThe idea of the American Dream is ever changing depending on the person and the time of life that person is in. Although the main ideas of the American Dream remain the same to be educated, economically sound, healthy, to have a family, and equal rights. Many great films and works of literature were created to show case all the different ideas people have for their American Dream. The film Ã¢â¬Å"Grapes of WrathÃ¢â¬ directed by John Ford and the poem Ã¢â¬Å"I Will Fight No More ForeverÃ¢â¬ by Chief Joseph, both depictRead More Destruction of the American Dream Essay2145 Words Ã |Ã 9 PagesDestruction of the American Dream IÃ¢â¬â¢ve talked about it in the past, the destruction of the American Dream. Always, there have been papers, writings, and thoughts that quantify a particular section of its ultimate demise, be it due to money, education, or sexuality. Maybe the destruction cannot be viewed as a singular event or cause. Perhaps instead it must be examined as a whole process, the decay and ultimate elimination of a dream. Self destruction, if you willÃ¢â¬ ¦ Mr. Self Destruct Read MoreSuccess As One Of The American Dream1137 Words Ã |Ã 5 PagesApril 2015 Success as One of The American Dream When we hear the word Ã¢â¬Å"successÃ¢â¬ , we often think of wealth and money. To some people, the embodiment of being success is earning a lot of money. In fact, the concept of success is primarily based on how much money a person earns. However, each person views the definition of success differently. One way to define success is something that has more to do with flash than it does with substance. John Wooden, an American basketball player and coach viewRead MoreJim Cullen And The American Dream2081 Words Ã |Ã 9 Pages The American Dream, as defined by Cullen, is starting your goal off with a little and ending with more; it s like a business, you invest in it in order to gain more money. Usually, people will define the American Dream as being able to achieve your goal because everyone is offered opportunities. Cullen does acknowledge that people are born with different opportunities, so he talks about the good life. The good life describes different factors that determine your opportunities. Throughout the otherRead MoreFactors Influencing The American Dream1834 Words Ã |Ã 8 Pagesindividual to succumb or to not succumb to the seductions of crime. These three factors are brilliantly portrayed in the television show, Breaking Bad and the novel, The Stick Up Kids. The American Dream is what many American citizens strive for. However, not all of those citizens are able to achieve the American Dream through a legal pathway. The reason an indivudal may not being able to do so is because of his or her background factors. It is important to note that background factors are a fractionRead MoreShark Tank And The American Dream1755 Words Ã |Ã 8 PagesShark Tank and The American Dream The TV show Shark tank embodies everything the American dream represents. The show obtains successful Entrepreneurs ready to invest their own money into other Americans wanting to be just like them, reaching the American dream and become a successful entrepreneur. The show presents entrepreneurs working towards the goal of creating a business to not only gain wealth but also change the way we live today. The show is to keep the American dream alive and well while
Wednesday, May 6, 2020
CESP 750 D OUTLINE FORMAT Name: Chaitanya Polaki Proposed Title: Benefits of the Vertical axis wind turbine Problem or Thesis Statement: The VAWT is better than the HAWT in wind power plants because VAWT significantly requires less installation room, has low-cost efficiency, decreased mechanical vibrational stress, and much higher output efficiency. OUTLINE I. INTRODUCTION A. Large scale industries, mostly depend upon the HAWT and is estimated that the coefficient of output energy is almost 0.5 i.e. 90% acquired through HAWT whereas the VAWT gives about 0.4 factor of output power, so is it necessary to design, establish and implement VAWT in the industries? B. In past, humans fully depend upon the nonrenewable sources likeÃ¢â¬ ¦show more contentÃ¢â¬ ¦A. Brown, ). C. The VAWT is better than the HAWT in wind power plants because VAWT significantly requires less installation room decreased mechanical vibrational stress, much higher output efficiency, and is a lot easier to construct. II. BODY A. Although the HAWT are mostly for the large scale industries and remote areas, in the urban region and small scale industries target mostly VAWT. The flow of the wind in urban areas is less, area occupying by the VAWT motor and blades is less because this part is small and vital to run the wind turbine, and the noise pollution is less due to small design model and flexible composite blades. Not only acoustic pollution is less, but also the structural design and safety problems restricts the usage of HAWT in urban areas (Yang Zhong-Jia). The blades of HAWT a must be made of are metals and the ratio of the wind blade length, thickness and width are more which leads to more stress on the blades and motor rotating the turbine. B. Turbine Blades and internal parts such as motors are the main part of the Windmill. Materials used in the HAWT lead to effect more cost. Unlike the materials of VAWT, the materials of HAWT are made of high composites metals and steel blades, power required to store the energy in the end in the generator is more, and it must be installed near offshore or remote areas (K. A. Brown*). However the turbine blades made up of composite materials such
Tuesday, May 5, 2020
In Ode on Melancholy John Keats expresses to readers the truth he sees, that joy and pain are inseparable and to experience joy fully we must experience sadness fully. Keats valued intensity of emotion, thought, and experience (Ã¢â¬Å"Classification Of PoemÃ¢â¬ ). Keats does not stray away from the suggestion that feeling intensely means that grief or depression may cause sorrow and torture. Throughout the poem Keats expresses his values and emotions by constructing a certain sense of the poem. Readers can agree that Ã¢â¬Å"Ode on MelancholyÃ¢â¬ reflects on John Keats because of formal structure, theme, and thematic elements. Ã¢â¬Å"Ode on MelancholyÃ¢â¬ addresses the subject of how to cope with sadness. The first stanza tells readers what not to do. In the poem, the speakers states to the sufferer should not forget their sadness, should not commit suicide (nightshade, Ã¢â¬Å"the ruby grape of ProserpineÃ¢â¬ ), or become obsessed with objects of death and misery (the beetle, the death-moth, and the owl). Keats claims by doing these things that it will make the anguish of the soul drowsy, and the sufferer should do everything he or she can to remain aware of and alert to the depths of his suffering . In the second stanza, he tells the sufferer what to do instead of resulting to the things in the first stanza. When afflicted with Ã¢â¬Å"the melancholy fit,Ã¢â¬ the sufferer should instead overcome his sorrows with natural beauty, glutting it on the morning rose, Ã¢â¬Å"on the rainbow of the salt sand-wave,Ã¢â¬ (line 16) or in the eyes of their beloved (Ã¢â¬ Summary on John Keats-Ode on MelancholyÃ¢â¬ ). In the third stanza, he explains these injunctions, saying that joy and pain are inseparable: Beauty must die, joy is fleeting, and the flower of pleasure is forever Ã¢â¬Å"turning to poison while the bee-mouth sipsÃ¢â¬ (line 24). Keats says that the shrine of melancholy is inside the Ã¢â¬Å"temple of Delight,Ã¢â¬ (line 25) but that it is only visible if one can overwhelm oneself with joy until it reveals its center of sadness (Ã¢â¬Å"Classification Of PoemÃ¢â¬ ). Ã¢â¬Å"Ode on MelancholyÃ¢â¬ is the shortest of Keatss odes and was written in a very regular form. Each stanza is ten lines long and metered in a relatively precise iambic pentameter. The first two stanzas, offering advice to the sufferer, follow the same rhyme scheme, ; the third, which explains the advice to the sufferer, varies the ending slightly, following a scheme of (Ã¢â¬Å"Ode on Melancholy: MelancholyÃ¢â¬â¢s PleasureÃ¢â¬ ). Most readers can agree that this poemÃ¢â¬â¢s structure is progressive. Keats begins the poem with many negative particles. In the first verse of the first stanza he says:Ã Ã¢â¬Å"No, no, go not to Lethe,Ã neither twistÃ¢â¬ (line 1)Ã because he is showing his rejection to those who look for something to calm his or her pain. Also the lines three and six begin with the wordÃ nor and he uses this word in order to reinforce his ideas to the readers. Keats is warning the sufferer about what he or she should not do to avoid the pain and that we do not have to forget the sadness (Ã¢â¬Å"Ode on Melancholy: MelancholyÃ¢â¬â¢s PleasureÃ¢â¬ ). In the second stanza Keats is saying what to do if the melancholy arrives. If the melancholy overpowers you, then to fight against the sadness you have to console yourself with the Beauty: the beauty of the rainbow, the beauty of the flowers (Ã¢â¬Å"peonies and morning rosesÃ¢â¬ ) and the beauty of your belovedÃ¢â¬â¢s eyes. It is ironic the way he uses negative symbols likeÃ weeping cloudÃ and positive symbols likeÃ morning rose, rainbow and peonies, because he expresses to readers that these beautiful things need the help of the negative things (Ã¢â¬Å"Ode on Melancholy: MelancholyÃ¢â¬â¢s Pleasure). Keats starts the third stanza by saying:Ã She dwells with Beauty Beauty that must die. Readers can agree that this line in the poem is very important because Keats was very concerned with beauty, saying beauty is temporary (Ã¢â¬Å"Ode on Melancholy: MelancholyÃ¢â¬â¢s PleasureÃ¢â¬ ). Keats uses Ã¢â¬Å"sheÃ¢â¬ Ã to refer to melancholy because the melancholy is beautiful in his eyes. In this stanza readers can see the irony. In the poem it statesÃ Ã¢â¬Å"Ay, in the very temple of Delight/ VeildÃ Melancholy has herÃ sovranÃ shrineÃ¢â¬ Ã (lines 25-26). The melancholy has his or her shrine in the temple of delight, but it isÃ veilÃ¢â¬â¢dÃ because when we are happy and when we are not melancholic, we canÃ¢â¬â¢t see it and we think we will be happy forever. The main idea that readers can obtain from Ã¢â¬Å"Ode on MelancholyÃ¢â¬ is that we, as human beings, cannot escape from the pain, but when we are faced with melancholy we fight through it. Ã¢â¬Å"Ode on MelancholyÃ¢â¬ is different than any other of KeatsÃ¢â¬â¢s works because of its style and theme. Readers can agree that the theme of Ã¢â¬Å"Ode on MelancholyÃ¢â¬ is we cannot escape from pain and when we are faced with melancholy we must fight through it. Keats wrote most of his works during the Romanticism period in which authors wrote about their feelings and emotions. By Keats being an author during that period, the theme of Ã¢â¬Å"Ode on MelancholyÃ¢â¬ expresses his writings (Ã¢â¬Å"Ode on MelancholyÃ¢â¬ ). Throughout the poem Keats uses his style of writing to portray the theme to readers. He uses thematic elements such as personification and similes to express the theme. Personification is shown in the poem when Keats states Ã¢â¬Å"Veild Melancholy has herÃ sovranÃ shrineÃ¢â¬ (line 26). Keats uses this line in the poem to compare melancholy to a person, stating that the sufferer cannot let melancholy have power over them. Similes are shown in the poem when Keats states Ã¢â¬Å"But when the melancholy fit shall fall/ Sudden from heaven like a weeping cloudÃ¢â¬ (lines 11-12). He compares melancholy to a weeping cloud, stating that melancholy is so strong that it can fall upon the sufferer like a weeping cloud (Ã¢â¬Å"Ode on MelancholyÃ¢â¬ ). By Keats using these thematic elements the theme is expressed to readers. John Keats uses his values and emotions to portray to readers the way to handles things. Ã¢â¬Å"Ode on MelancholyÃ¢â¬ is one of his most honest works to date and continues to stand out in literature today. By him using a certain structure and theme, this work stands out from any of his other works. Readers can agree that Keats wants the audience to know that it does get better and that when you are faced with melancholy that you must see it through.
Friday, April 10, 2020
Andy Warhol's Impact On Art andy warhol's impact on art Page 1 Andrew Warhola was born August Sixth, 1928, in Pittsburgh Pennsylvania. He was the youngest son of Julie and Andrej Warhola, both immigrants from Czechoslovakia. After a quiet childhood spent alternately alone and in art classes, Andrew went to college. He then got a job doing commercial art, largely advertisements for large companies. Over time his name was shortened and Andy Warhol changed the face of modern art. Through his silver lined Factory and the many people who frequented it a revolution was born. This paper will discuss some of these people and examine the impact they all made on modern art. Ruska Dolina was a small Ruthenian suburb of Pittsburgh. It was populated with, of course, eastern European immigrants. Andy Warhol was born into this very close-knit neighborhood speaking his parent's native tongue. Julia Warhola was herself a bit of an artist, in later years she would collaborate with her youngest son. Andrej Warhola worked in the great steel mills of Pittsbur gh. The Warhola household was very typical of the times. Julia would stay home, cook, and read to her boys while Mr. Warhola worked in a steel mill sweatshop with hundreds of other immigrants. The family was strictly Eastern Orthodox Catholics. On Sunday, the day of rest, no one was allowed to move. These days were passed indoors with Mrs. Warhola telling stories to the boys. Like most children, Andrew collected the pictures and posters of various celebrities that would define such a body of his work in later years. Andrew was a rather small boy. In interviews Andy Warhol said that he was pale and scrawny and that he was thusly bullied on several occasions by his classmates. When he was fourteen Andrew's father died of tuberculosis, a common malady of the times, especially for the profession. This had a profound affect on young Andrew. As was the Orthodox tradition, the body was laid out in the house for three days of mourning and visitation. During this span Andrew hid under his be d refusing to look at his father's body. Despite the poorly paying job, Andrej managed to set aside money for college. However, he saved only enough to send one child, and the general consensus was that this would be Andrew. In Fifth grade Andrew started attending the free Saturday classes that the Carnegie Institute taught. It is noted that even then young Andrew excelled at his art. Due to the bullying by his classmates he stayed inside a great deal, working on his art. Due to his aptitude in school, Andrew skipped two grades and was admitted into the Carnegie Institute of Technology at the young age of 16. Once in the school Andrew was admitted to the Department of Painting and Design. He studied various aspects of commercial graphic design and after his graduation he moved to New York to seek his fortune. Page 2 Once out of college Andrew of course had very little money and for a brief while he shared a basement apartment with seventeen other individuals. Finding employment dema nded a never-ending series of portfolio submissions. In an interview Andrew said that his name was accidentally changed to Warhol. He says that it was never a conscious decision, it rather happened over time. Regardless, the name change stuck, the first name was shortened, and the world-renowned artist was forming. The basement with seventeen roommates did not last long; Andy was rather fast at finding steady employment. In 1951, two years out of school, Andy Warhol bought a nice apartment for himself. Shortly thereafter his mother and her three cats showed up one evening. Julia Warhola was to live with the son she adored so greatly for her remaining twenty years. During these two decades Andy kept his home life strikingly separate from his public persona. His time with his mother was cherished. Julia was in fact his first collaborator in art. Andy helped her make a book about cats and *censored* heaven, where all cats went. This book was an interesting mixture of his mother's folk art background and his unique styling. Over this time Andy Warhol had his world famous silver
Monday, March 9, 2020
Free Essays on Ann PetryÃ¢â¬â¢s Like a Winding Sheet, Sandra CisnerosÃ¢â¬â¢ Woman Hollering Creek and Leslie SilkoÃ¢â¬â¢s Ceremony
Sorrows of the otherness in Ann PetryÃ¢â¬â¢s Like a Winding Sheet, Sandra CisnerosÃ¢â¬â¢ Woman Hollering Creek and Leslie SilkoÃ¢â¬â¢s Ceremony The United States of America is a nation of democracy. Yet, it has not always been a place of freedom and opportunity. The people who do not fit into the mainstream are forced to live in multiple worlds separated by cultural values or language barriers. This world of the majority tears them away from their own native worlds. This separation is very well shown in Ann PetryÃ¢â¬â¢s Like a Winding Sheet, Sandra CisnerosÃ¢â¬â¢ Woman Hollering Creek and Leslie SilkoÃ¢â¬â¢s Ceremony. Although the authors are of different origin, their characters have something in common Ã¢â¬â they all suffer from their isolation. In Ann PetryÃ¢â¬â¢s short story Like a Winding Sheet, Johnson is a black male struggling with racism and societal pressures. Johnson faces many challenges throughout the whole story. The reader can feel his anger, frustration and tenseness. One of the first points to mention is the relationship between Johnson and his wife Mae. Although this appears from the outward appearance to be a normal relationship it is hard to ignore the inward emotions that Johnson has been keeping, such as the envious feelings he has toward MaeÃ¢â¬â¢s ability to be energetic and refreshed after having worked all night. A second point is to mention the fact that it is early in the 20th century and jobs are particularly hard to find, especially for a black man with no special trade. With this in mind it would seem that Johnson would be thankful to have secured employment anywhere in town instead of grumbling and complaining about the pain in his legs. Thirdly, in relation to the other points, racism seems to be still alive within this time period. "I'm sick of you niggers" (Petry, 119) is a statement directed towards Johnson by his boss, which is definitely, in todayÃ¢â¬â¢s standards considered a racial statement. This along with the f... Free Essays on Ann PetryÃ¢â¬â¢s Like a Winding Sheet, Sandra CisnerosÃ¢â¬â¢ Woman Hollering Creek and Leslie SilkoÃ¢â¬â¢s Ceremony Free Essays on Ann PetryÃ¢â¬â¢s Like a Winding Sheet, Sandra CisnerosÃ¢â¬â¢ Woman Hollering Creek and Leslie SilkoÃ¢â¬â¢s Ceremony Sorrows of the otherness in Ann PetryÃ¢â¬â¢s Like a Winding Sheet, Sandra CisnerosÃ¢â¬â¢ Woman Hollering Creek and Leslie SilkoÃ¢â¬â¢s Ceremony The United States of America is a nation of democracy. Yet, it has not always been a place of freedom and opportunity. The people who do not fit into the mainstream are forced to live in multiple worlds separated by cultural values or language barriers. This world of the majority tears them away from their own native worlds. This separation is very well shown in Ann PetryÃ¢â¬â¢s Like a Winding Sheet, Sandra CisnerosÃ¢â¬â¢ Woman Hollering Creek and Leslie SilkoÃ¢â¬â¢s Ceremony. Although the authors are of different origin, their characters have something in common Ã¢â¬â they all suffer from their isolation. In Ann PetryÃ¢â¬â¢s short story Like a Winding Sheet, Johnson is a black male struggling with racism and societal pressures. Johnson faces many challenges throughout the whole story. The reader can feel his anger, frustration and tenseness. One of the first points to mention is the relationship between Johnson and his wife Mae. Although this appears from the outward appearance to be a normal relationship it is hard to ignore the inward emotions that Johnson has been keeping, such as the envious feelings he has toward MaeÃ¢â¬â¢s ability to be energetic and refreshed after having worked all night. A second point is to mention the fact that it is early in the 20th century and jobs are particularly hard to find, especially for a black man with no special trade. With this in mind it would seem that Johnson would be thankful to have secured employment anywhere in town instead of grumbling and complaining about the pain in his legs. Thirdly, in relation to the other points, racism seems to be still alive within this time period. "I'm sick of you niggers" (Petry, 119) is a statement directed towards Johnson by his boss, which is definitely, in todayÃ¢â¬â¢s standards considered a racial statement. This along with the f...
Saturday, February 22, 2020
Evidence based case study on hyperosomar hyperglycaemia state patient - Essay Example Hyperosomar hyperglycaemia state is a state whereby alteration of sensation may often be present without comma, and it may consist of moderate to variable degrees of clinical ketosis. Therefore, Emergency Department nurses should be keen when assessing for diabetes because older patients may in hyperosomar hyperglycaemia condition. This paper reflects the aspects of care that were provided to a patient, Mr. B, in the Accident and Emergency department, while applying triage, A-G assessment, ECG and fluid management competencies. Triage Triage involves the separation of a patient who requires prioritized care because of the severity his or her condition. This applies most in the Emergency Departments, where doctors and nurses have to determine who gets care first. According to the English Dictionary, the term triage refers to the process of determining the most important people or things from among a large number that requires attention (Oxford University Press, 2013). In medical use, triage is the assignment of degrees of urgency to wounds or illnesses to decide the order of treatment of a large number of patients or casualties. Since every day, Emergency Departments have to attend to a large number of patients who suffer from a wide range of problems, it is essential to have a system that ensures that these patients are seen in order of their clinical need, rather than in order of attendance. Triage manages a patient flow safely when clinical needs exceed capacity. It involves identification of the problem, determination of the alternatives and selection of the most appropriate alternative (Manchester Triage Group, 2008, p, 7). Identification of the problem involves obtaining information from the patients, their careers and any pre-hospital care personnel. (Manchester Triage Group, 2008). The Emergency Department acts as a transfer station through which the casualties should pass, as quickly as possible, on their way to surgery, intensive care, or a ward (Nutbe am & Boylan, 2013, p, 181). In this case, the patient was triaged by an experienced emergency nurse who has undergone specialist training. In the problem identification phase, information was collected from the patientÃ¢â¬â¢s son who provided past history of the patient. From the history, it was established that the patient experienced sudden onsets of lethargy, strange behaviour such as waking up at three in the morning to have a shower, reduced frequency in mitcuration and reduced drinking. When the patient was examined, it was found that the patient was alert, did not exhibit limb weakness, and was quiet, which is unusual. Besides, the patient was not clammy or sweaty. The vital signs awarded an early-warning score of 1, given that a tachycardia of 112 beats per minute was exhibited. Consequently, the patient was placed into priority category three, as per the Manchester Triage System. This required the patient to see the doctor within one hour. However, the patient was seen by a doctor, four hours after triage, which is against the requirements of priority three allocations, at triage. Furthermore, due to lack of trolleys and large volume of patients in the department, the patient was allocated on majorsÃ¢â¬â¢ chairs instead of trolley. A-G Assessment A-G assessment is essential in facilitating the diagnosis and administration of severe and chronic primary health problems that are found in adult clients, especially the aging
Thursday, February 6, 2020
Controllers for Marine Engineering Systems - Essay Example Time was calculated with that device by regulating the water level in a vessel and ascertaining the quantum of its flow out of it. (Australian Maritime College, department of maritime time engineering lecture notes on instrumentation and process control. (http://academic.amc.edu.au/hnguyen/IPC/IPC01-06.pdf, viewed on 23rd August , 2007) Development of instrumentation and control systems were very slowly till the Second World War. It progressed and accelerated with tremendous speed after the war. Initial progress was in single loop control systems. These contain a single feedback channel and this technology was elaborated since then for acquiring multi-loop systems In recent years marine vehicles are designed in swift progression. There are unmanned underwater vehicles, surface ships and high-speed crafts with integrated bridges. These marine vehicles and their engines are controlled with the aid of computer science. But designing and producing a computer-based automatic control system were challenging in marine control engineering till recently. Several types of control are used now. They are control applications in marine and offshore systems like CAMS (Control Applications in Marine Systems) and MCMC (Maneuvering and Control of Marine Crafts), maneuvering, control and ship positioning systems, robust and reliable control systems, optimization methods in marine systems and modeling, underwater vehicles and robotics, offshore systems, traffic guidance and control systems, fault tolerant control, detection and isolation in marine systems, engine and machinery control systems, machinery surveillance, condition monitoring and quality control systems, networking and IT for marine control. (http://academic.amc.edu.au/hnguyen/IPC/IPC01-06.pdf, page 1, viewed on 23rd August 2007). The history of automatic process control reveals that the PID controller heralded all the mechanical devices used in the marine engineering. Earlier these mechanical controllers used a lever, spring and a mass. Compressed air activated the system and 2 such pneumatic controllers were treated as the industry standard. Times have changed then and likewise the techniques. Proportional Integral Derivative, abbreviated to PID controller is a generic control loop feedback mechanism. It is extensively applied in industrial control systems. This controller rectifies errors occurred between a measured process variable and a set-point by calculating and outputting corrective action which could adjust the process. (http://en.wikipedia.org/wiki/PID_controller, viewed on 23rd August, 2007). The calculation is based on three elements viz., the Proportional, the Integral and Derivative values. The first one considers the reaction to the present error, while the second regulates the reaction on the sum of recent errors and the third determines the reaction to the rate of error change. The sum of these three is taken as output to a control element. By adjusting the proportional, the integral and the derivative values, the PID can give control action for specific requirements.