Manufacturing proposals for gearbox and square Screw Research Proposal

Manufacturing proposals for gearbox and square Screw - Research Proposal Example In every research work there is a motivation behind it. The major motivation towards undertaking any research work is to find a solution to some unique and unanswered question. Addressing such question requires both explicit and implicit engagement into the field of study in order to elicit information that would in the end lead to the answer of that subject in question. Therefore the question this project is intended to answer is to develop a design of gearbox and square screw that can be used in the manufacture of pneumatic cowl actuator. The significance of this project is that it helps in developing a gearbox and a screw at a little cheaper and economically viable cost. This project will act as a partial fulfillment of my degree course requirements and also help towards improvements in the engineering industry and technology as a whole. The project is also meant to help in improving the aviation industry by helping produce cheaper and affordable aircraft parts. Several goals and set objectives are the driving force behind this research work. This is because there cannot be a journey without destination. The goals and objectives of this project is therefore, to the development of a square screw and gearbox, manufacture a cost-effective square screw and gearbox, to make a device that will make, to explore the field of engineering and aviation especially in the line of engine manufacturing, to assess the economic implications of developing an aircraft engine, to investigate the composition of an aircraft engine and to explore and understand the composition and components of a gearbox and square screw. Engineering and aviation industries have undergone several evolutionary developments since the invention of an aircraft several years ago. Operating the pneumatic cowl doors had been an uphill task due to lack of proper modernized ways of cowl actuation. This prompted the discovery of a control system that is electronic. The actuator is an embodiment that

Three major causes of soil erosion Essay Example | Topics and Well Written Essays - 500 words

Three major causes of soil erosion - Essay Example Sheet erosion is caused by the effect of rainfall on the surface soil. The force of water running downhill caused by adequate rainfall could remove the soil particles on the surface and carry it towards the lower areas. The heavier the rainfall is or the longer the rain occurs, the more soil particles are taken from its original position. Sheet erosion is definitely a natural phenomenon. However, the degree of erosion can be determined also by natural and artificial factors. The most effective natural means of preventing sheet erosion is vegetation. This is because â€Å"sheet erosion mainly occurs under conditions where the soil surface is insufficiently protected by vegetation cover† (Govers, 2004, p.947). The roots of plants and trees on slopes contribute in reducing the effects of erosion by holding on to the surface soil. Aside from this, the roots also tend to siphon certain amount of the rainwater that seeps into the soil. The foliage also prevents portions of the total rainfall from hitting ground. Human intervention may be necessary in order to prevent soil erosion. Such interventions would include actual planting of trees on slopes that are most vulnerable to erosion due to rainfall.

Nurse as a team member communication, change process, group process Research Paper

Nurse as a team member communication, change process, group process - Research Paper Example Prepare for disasters and general health care in the community. Developing internal understanding among group members as they contribute positively to save lives in areas that have just been hit by disasters. This involves the commitment to selflessness and to save and rescue as many victims of the disaster as possible. Bodies that have not survived disasters to be handled with decency and to make sure they are identified (Ott, 2007). 8:00 am Commencement of the rescue operation.(The injured are transferred to the health camp within for first aid, ambulances on standby to rush the most serious cases to the hospital for further medical assessment. N/B: The entire operation does not stop when this group winds up. Another group comes in to work in the night session if at all the rescue process is very demanding.However,night sessions only apply in very serious disasters. Normally reinforcement is usually very necessary. The director took the general leadership role. He however delegated supervisory role to the coordinators who fore saw the operations carried out by each group division. Leadership in this instance is characterized by a lot of team consultation. The director makes his decisions based on the feedback from the assisting staff and coordinators. Decisions made also depend on emerging situations that may arise in the camp in the sense that some cases require much emergency response than the others (Northouse,

The Coward Revealed in Arthur Millers Death of a Salesman :: Death Salesman essays

The Coward Revealed in Arthur Miller's Death of a Salesman  Ã‚  Ã‚  Ã‚   In the play Death of a Salesman by Arthur Miller, the main character, Willy Loman, is a struggling salesman. Willy Loman is a complex character who confuses illusion with reality. In a way, Willy has two personalities in this play. The one we see in the present action is a tired man in his sixties. The other Willy is the one we see in flashbacks. He is young and confident. In Act Two, Scene Fourteen, Willy’s son Biff tells him that he loves him. Willy can tell that Biff is not just saying this out of pity because Biff is sobbing. In a flashback, Willy speaks to his dead brother Ben. Ben keeps saying "Time, William, Time", reminding him that suicide is closing in. Ben also tells Willy that he should come to the jungle. In this scene, the jungle represents opportunities for success. The reason that Ben tells Willy to come to the jungle, is that when in the jungle, Willy can get the diamonds. The diamonds represent the insurance money that the family will get from Willy’s accident. Therefore, Ben is saying that the only way Willy can get twenty thousand dollars in insurance money is to kill himself, or symbolically Ben is saying that the only way to get the diamonds is to enter the jungle. Willy also talks to Ben how great Biff would do with all of that money. Willy thinks one more time about Biff and how he was a great football player. This shows that Willy still thinks of Biff as a football hero, which is one of the reasons Willy thinks Biff is so magnificent. As Willy is finishing up his thoughts, his wife, Linda, is calling him to come up to bed. After this happens, the sound of a speeding car is heard driving off into the night. In the same scene, Willy’s wife Linda has come to make a peace with their two sons, Biff and Happy. Linda also suspects that Willy may kill himself. She made a big mistake by leaving the disturbed Willy alone. The rubber tubing that Linda found on the heater foreshadows Willy’s suicide. Linda doesn’t want Willy to kill himself, but believes that she cannot interfere with his business. I believe that Willy’s suicide was an escape from shame. He couldn’t keep living his life as a lie.

Antiretroviral Therapy Essay

There is no other field of medicine that has been through such dramatic developments as that of antiretroviral therapy. In September 1995, the results of Eurpean-Australian DELTA study, and the American ACTG pointed out that two nucleoside analogues were more effective than monotherapy. This led to the belief, thatlonger survival was possible in HIV. Protease inhibitors (PIs) came about in 1995, and in June 1996, the first non-nucleoside reverse transcriptase inhibitor (NNRTI) neviparine arrived, and so did Nelfinavir which was a new PIs. This led to the start of HAART (Highly Active Anti-Retroviral Therapy). Antiretroviral drugs have been divided into a number of groups on the basis of the phase of the retrovirus life-cycle that the drug inhibits. 1  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Nucleoside & nucleotide reverse transcriptase inhibitors (NRTI) inhibit reverse transcription by incorporating   into the newly synthesized viral DNA and slowing its elongation. Apricitabine (AVX-754) is a heterocyclic cytidine analog, which may enter the market in 2009. Elvucitabine   is currently in phase II trials. Stampidine is 100 times more potent than AZT and has potential role against HIV mutants 2  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Non-nucleoside reverse transcriptase inhibitors (nNRTI) inhibit reverse transcriptase directly by binding to the enzyme and not allowing its function. Efavirenz has been the agent that has been most successful, but is facing lot of viral resistance. Rilpivarine has a long half life of 40 hours. 3  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Protease inhibitors (PIs) target viral architecture by inhibiting the activity of protease, an enzyme used by the virus to form new virons from the older protein framework. PL-100 is given as a prodrug and is active against multi PIs resistant strains. It has a long half life of 37 hours, and can act as a co-drug. 4  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Integrase inhibitors inhibit the enzyme integrase, (integrates   viral DNA into   DNA of the infected cell). Raltegravir became the first to receive FDA approval in October 2007. it is   the most exciting of all anti HIV agents in the market. It acts against HIV-2 also. Elvitegasir has a potential as monotherapy. 5  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Entry inhibitors (or fusion inhibitors) prevent the   binding, fusion and entry of HIV-1 virus into the host cell. It acts via the gp 120 envelope protein to the CD 4 receptor. Maraviroc and enfuvirtide are marketed agents of this group. 6  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Maturation inhibitors- inhibit the last step in gag processing in which the viral capsid polyprotein is cleaved, thereby blocking the conversion of the polyprotein into the mature capsid protein (p24). These virons are thus incomplete and thus uninfective.   Two drugs in this group   are under investigation, bevirimat,`and Viveconâ„ ¢. Immunotherapy. IL-2 is a cytokine from the activated T – cells, which induces proliferation in T, B, and NK cells. It causes an increase in CD 4 and CD 8 cells. It is useful in patients with poor immunological response to antiretroviral therapy to stimulate the immune system. G-CSF, GM CSF are used for treatment of prolonged neutropenia in patients with advanced HIV infection to reduce bacterial infection. Why is treatment of HIV difficult ? The retrovirus has an extremely short life span, as short as 1 ½days. In addition the protective enzymes which prevent mutation in RNA to DNA conversion via reverse transcriptase in absent in the virus. Thus the virus mutates very rapidly, and produces many genotypes, some of which escape the cytotoxic effect of the antiretroviral drugs and proliferate. When the antiretrovirals are combined, the number of genotypically active virons is low, and so combinations are a must, as no single agent has been shown to suppress virus for long. Fixed dose combinations A major change in the therapy today has been the advent of fixed doses combinations. Earlier patients had to take larger number of tablets per day, but now combinations of these complex regimens are available in single tablets, which increases the compliance of patients, thus reducing chances of treatment failure. Current treatment guidelines for HAART The status of ‘hit hard, hit early’ approach which was recomneded earlier has now changed. Some clinicians use the 350 and 500 CD4+ T cells/mm ³ levels to initiate treatment, but this needs individualization. Today it is recommended that HIV patients should start ART after confirmation of the HIV disease and the presence of Clinically advanced HIV disease – WHO Stage IV HIV disease, irrespective of the CD4 cell count; WHO Stage III disease with consideration of using CD4 cell counts less than 350/ µl to assist decision making; WHO Stage I or II HIV disease with CD4 cell counts less than 200/ µl. the guidelines for adults and adolescents for the USA are set by the United States Department of Health and Human Services (DHHS). In this all patients with history of an AIDS-defining illness or severe symptoms of HIV infection regardless of CD4+ T cell count receive ART. Antiretroviral therapy is also recommended for asymptomatic patients with less than 200 CD4+ T cells/ µl. Asymptomatic patients with CD4+ T cell counts of 201–350 cells/ µl should be offered treatment. For asymptomatic patients with CD4+ T cell of greater than 350 cells/ µl and plasma HIV RNA greater than 100,000 copies/ml, most experienced clinicians defer therapy but some clinicians may consider initiating treatment. Therapy should be deferred for patients with CD4+ T cell counts of greater than 350 cells/ µl and plasma HIV RNA less than 100,000 copies/mL. Treatment regimes Important aspects are that the first regimen offers the best chance to the patient, meaning that the viral load must be below detectable level within 3-6 months of treatment initiation. The combination used initially consist of two nucleoside analogs plus a PI or either a NNRTI. A regimen containing an NNRTI is often the regimen of choice for initial antiretroviral treatment when adherence is expected to be good because of convenience, superior virological suppression, lower rates of toxic effects, and fewer interactions between drugs than with boosted protease inhibitor regimens Thus various acceptable regimens are (Wikipedia) two NRTI’S + One NNRTI two NRTI’s + PI. For initial regimens that include a protease inhibitor, those that are ritonavir boosted are recommended because of the improvement in protease inhibitor pharmacokinetics and potency Threre NRTI ( referred to as triple nukes) once daily combinations – like emtriva. This regimen needs strict compliance, as if one dose is forgotten, then that days therapy is lost The preferred initial regimens are (Department of Health and Human Services) 1  Ã‚  Ã‚   efavirenz + zidovudine + lamivudine 2  Ã‚  Ã‚   efavirenz + tenofovir + emtricitabine 3  Ã‚  Ã‚   lopinavir boosted with ritonavir + zidovudine + lamivudine 4  Ã‚  Ã‚   lopinavir boosted with ritonavir + tenofovir + emtricitabine Referance Cahn P, Cassetti I Wood R etal. Efficacy and tolerability of 10 day monotherapy with apricitabine in antiretroviral naà ¯ve, HIV infected patients. AIDS 2006, 20:1262-8. Department of Health and Human Services (August, 2006). HIV and Its Treatment: What You Should Know. Accessed on 31 mar, 2008 United States Department of Health and Human Services (2004). A Guide to Primary Care for People With HIV/AIDS, 2004 Edition Antiretroviral drug – Wikipedia, the free encyclopedia – en.wikipedia.org/wiki/Antiretroviral_drug HAART, HIV Treatment HIV Medicine 2007, 15th edition. Hoffman C, Rockstroh JK, Kamps BS. Flying Publishers. HIV Therapy: Highly active antiretroviral therapy (HAART)

Media And Politics A Brief Note On Media Politics

Tawhida Rahman Media Politics Midterm 1) There are several landmark U.S. court cases pertaining to the media and free press which changed the laws on behalf of journalists and reporters. One of the earliest cases of such cases was Crown v. John Peter Zenger. In 1734, a news printer named John Peter Zenger of the New York Weekly Journal was arrested for seditious libel against Governor William Cosby when Zenger’s publication criticized the politician for corruption. The charge of libel in this particular historical time meant anything written in opposition to the government, but Zenger was acquitted by the jury based on the fact he did not print false facts, so his actions did not constitute libel. His case, however, did not establish any drastic ruling on libel but it was a large step towards freedom of the press; it changed the way the public, colonial courts, and American journalists treated the idea of censuring their print media. The Zenger case established that writers being able to inform the public a bout important and true information concerning their leaders, even if that writing is defamatory, should be a permissible form of speech. This decision opened up the press as a space for serious political discussions and criticism of government in a way that would construct the future political movements of America, including its independence from Great Britain. These events cemented the importance of free press, which would become the First Amendment of theShow MoreRelatedThe Mask Of Chivalry : The Making Of The Second Ku Klux Klan1706 Words   |  7 Pages1915 and a brief background about the founder, William Joseph Simmons. It also focused on members of the Ku Klux Klan in Clarke County, Georgia. This revival of the original KKK, that formed after the Civil War, now hated everyone that wasn’t one of them, a WASP or White Anglo-Saxon Protestant. A majority of their hatred was directed to the blacks but it also included Jews, Catholics, immigrants, and any political oppo sition to their beliefs. It also went in depth to the politics of class, sexRead More The Simpsons Essay example1184 Words   |  5 Pagesshow as subversive and demeaning (McAllister 1494). However, a more careful investigation of the show reveals far more than nose-thumbing gutter humor--enveloped in sarcasm and comedy, The Simpsons offers a thought-provoking critique of American politics, faith, and the American family. The Simpsons, taking prime-time television far beyond its normal scope, throws fierce political punches right and left. 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It also demonstrates that despite the publicity it received, polio was actually never actually the major epidemic that the media portrayed it to be and publicRead MoreFeminism Is For Everyone By Bell Hook958 Words   |  4 Pages Feminism is for everyone bell hook is a famous feminist author who wrote the book â€Å"Feminism Is For Everybody† hooks attempt to create a quick, simple start on feminist history, theory, and politics to the masses who receive a misinformation, misunderstood, and maligned version of the feminist movement. Hooks says â€Å"To understand feminism it implies one has to necessarily understand sexism†.We define feminism as the advocacy of women s rights on the grounds of political, social, and economicRead MoreNonverbal Communication in Politics2107 Words   |  9 PagesNonverbal Communication in Politics The 2012 presidential election finally reached its conclusion late Tuesday night on November 6th, as the incumbent Barack Obama won a second term in the White House over the challenger Mitt Romney. The election, with its reputation as the most expensive presidential race in history, attracted wide attentions not only from the United States but also from many other countries around the globe (Confessore McGinty, 2012). The election was also noted with a numerous

Essay on Control in Song of Solomon - 1028 Words

Fight for Control in Song of Solomon The idea of complete independence and indifference to the surrounding world, symbolized by flying, stands as a prominent concept throughout Toni Morrisons novel Song of Solomon. However, the main character Milkman feels that this freedom lies beyond his reach; he cannot escape the demands of his family and feel fulfilled at the same time. As Milkmans best friend Guitar says through the novel, Everybody wants a black mans life, a statement Milkman easily relates to while seeking escape from his sheltered life at home. Although none of the characters in the story successfully take control of Milkmans life and future, many make aggressive attempts to do so including his best friend Guitar†¦show more content†¦Even though the reader does not learn whether anyone ever does get Milkmans life, rest assured that despite her efforts, Hagar did not. At the beginning of the novel Milkman visits Pilates household on a regular basis. Seeing it a refuge from his exceedingly dull life, he involves himself in the lives of his relatives; especially in that of Hagar. Throughout his adolescence, Hagar brushes off Milkmans lascivious glances and displays of affection; however, as he matures, Hagar takes interest in Milkman and falls in love with him as she fulfills his sexual desires. Once Milkmans lust for Hagar abates, he chooses to unceremoniously dump her and seek others within his own social group to fill the void (or rather, for him to fill her void). Hagar, abashed, searches for Milkmans reasons for the sudden, unexpected change, but when she sees him with another woman her fury unleashes and initiates a colossal cascade of emotion that results in Hagars monthly attempts to kill Milkman. Feeling that she deserves Milkmans love and attention more so than other women, Hagar rationalizes her actions with a very simple attitude: Milkma n will either love me and include me in his life, or have no one at all. Hagars need for Milkmans death soon vanishes, she cannot bring herself to murder the one she loves; however, this does not impede her from seeking other paths to Milkmans heart. Although Hagars raging emotions result inShow MoreRelated The African-American Nightmare Exposed in Black Literature Essay2231 Words   |  9 PagesAfrican-American Nightmare Exposed in Olaudah Equiano, Narrative of Frederick Douglass, Song of Solomon, and Push    The American Dream was founded on the concept that all men are created equal(Jefferson 729) and that everyone has the capability and resources to pull themselves up by their bootstraps. The Declaration of Independence was written so Americans could achieve this dream, but was not written with the African slave in mind. The African slave was never intended to be a part of thisRead MoreReinforcement Role in Operant and Classical Conditioning2078 Words   |  9 Pagesclassical and operant conditioning Page 9 – conclusion What will be discussed in this study is how important reinforcement is on the process of consumers’ learning and preferences. The essay opens with a definition of learning and it is explained how consumers learn behaviours either passive ( low involvement) because of associations, nor because are motivated (high involvement) which lead to a certain behaviours. SubsequentlyRead MoreReinforcement Role in Operant and Classical Conditioning2066 Words   |  9 Pagesconditioning Page 9 – conclusion What will be discussed in this study is how important reinforcement is on the process of consumers’ learning and preferences. 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James Cunningham 17658 ADHE0514 Assignment Code Word Count: Module Leader/Lecturer: Ben Hall Table of Contents Title Page Abstract Table of Contents Introduction (word count) Main Body (word Count) Conclusion (word Count) Appendices Reference List IntroductionRead MoreExploring Sarah s Psychological Health Need3138 Words   |  13 Pages This part of the essay will explore Sarah’s psychological health need. The identified health need is anxiety. It will also explore the some literatures on anxiety and causes of anxiety. It will explore the planning and assessment of her health needs and finally proposed some interventions and evaluation the intervention. Medical History and Identified health needs. Sarah has a moderate learning disability and Sarah was diagnosis has having general anxiety disorder. Sarah has been known to have