Free sample - NASA Skylab Investigation. translation missing

NASA Skylab Investigation. NASA Skylab InvestigationAbstract Since the human being reseeded in the international space station, there have been numerous researches involving microgravity of the universe. This kind of research could not be successful without the assistance of American first space station, that is, the Skylab. This paper will widely focus on the investigation of the National Aeronautics and Space Administration (NASA) Skylab. It will attempt to focus on NASA investigation on the initial flight anomalies of the Skylab which occurred on May 14, 1973. The research will base on; how it happened, why it happened and how to reduce any form of possible failures. Additionally, the paper will uncover the individuals responsible for the fault and assess whether the situation was handled correctly or incorrectly. Introduction According to Feldman (26), Skylab was launched into the world orbit by a Saturn versus rocket on the 14th may 1973. On this day an anomaly occurred which lead to complete loss in the meteoroid shield that surrounded the orbital workshop. It is because of this anomaly that various crews visited Skylab where their come back was through an Apollo aircraft. The main objective of the Skylab was to prove that human beings could also live and survive in the outer space for long durations of time. It is evident that Skylab has continued to serve as the greatest microgravity lab, solar observatory of its time, medical lab, an earth investigation object and most essentially a home far a way from home. Since the implementation of the Skylab investigation, it is evident that there have been creations of new technologies, for instance special showers, exercising equipments, kitchen facilities and sleeping bags which were designed so as to fit in microgravity. The success geared to this experiment was based on the ability of different crews overcoming challenges during their stay in space (Shayler, 224). What is the NASA Skylab? Zimmerman (78) describes Skylab as the first United State space station and the second kind of space station to have been visited by human beings. The NASA which stands for National Aeronautics and Space Administration is the only organization that has been involved in the launching of this space station. The one hundred ton space station existed in the world orbit from the year 1973 to 1979 and it had been visited by three different crews in these two years. NASA through Skylab has greatly focused on ensuring that it tries to understand the earth through clearly observing the systems revolving within it. Through its constant explorations on the solar system it has been able to advance on new robotics missions that have seen the growth of new horizon in the class of researches involving the earth (NASA, 2). Based on the background associated to this space station, its origin has been difficult to point out due to the fact that there have been several proposals that the NASA had floated before engaging in the launching of Skylab (NASA, 3).   There have been numerous studies carried out by the NASA organization so as to find the ultimate platform that will be effective for the Skylab. What was the possible cause and result of the flight anomaly? Investigation indicated that the possible cause of anomaly in the flight was due to the fact that the meteoroid shield broke up because the aerodynamic loads had not been accounted for in the design of the flight. The ties that normally secure the solar system within the workshop were broken down as a result of the breaking up of the meteoroid shield.   From this whole effect there was significant loss of the solar system that only took a matter of ten minutes (Wade, 425). It is very evident that lack of professionalism widely contributed to the anomalies within the flight. This is based on the fact that there was no communication among the structural design, manufacturing personnel and aerodynamics. This lack of communication greatly contributed to deficiencies in the designs of the flight meteoroid shield.   Failure of communication toward the flight project highly attributed to the absence of sound techniques over a certain period of time. Of the various stated reasons for the failures of the meteoroid, the most significant identified reason was that of interior pressurization of the flight auxiliary tunnel which caused meteoroid to shield away form the casing of the workshop.   The pressurization within the supplementary tunnel was observed due to the existence of various openings in the astern part of the tunnel (Skylab space station, 210). What are the possible applicable corrective actions towards this flight anomaly? It is important that if back up OWS or analogous spacecraft is to be flown in the near future corrective action should be undertaken. For instance, it could be helpful if the meteoroid was done away with and significantly replaced through the coating of the OWS (orbital workshop) to ensure that there is effective thermal control. Additionally, it is important that protection remain a fundamental factor which will ensure that the board remains attracted to the concept of fixing a non deployable shield (Zimmerman, 80). Hoffman (215) observes that in order to ensure that there is reduction of separation failures such as those of second separation stage, it is important that there are shaped linearly. It is with accordance that structural systems are associated to other mechanisms, components or equipments so as to ensure that a piece of structure does not solely depend on the structure organization. Complex and multi –disciplinary systems should have a designate project engineer whose mandate   will be to ensure that all aspects involving analysis, fabrication, assembly, design and test of the flight are properly observed and undertaken. Corrective measures so as to avoid future predicaments as the ones in flight anomaly are first to ensure that there should be effective management systems to be used within the Skylab workshop.   These overall management systems should be fully operational within the workshop so as to avoid conflicts or inconsistencies as observed in the flight anomaly (Kraft, 127). It is very important that there is significant cross fertilizations between broadened experienced engineers so as to assist in the analysis on the initial flight anomalies. How can we reduce or do away with possibility of failure? As stated in the program objectives that is; to conduct effective research on certain earth resources. It is very evident that effective research is carried out so as to understand what can be done so as to avoid anomalies which often result due to lack of knowledge by the concerned engineers (Suszkowski, 230). It is essential that one effectively studies the effects which are normally associated to weightlessness on living objects such as human beings. It is very evident that Skylab tries to utilize man as an engineer and as individual who is concerned in the research. By so doing it ensures that it provides an equal opportunity or chance in the assessment of one potential capability for prospect space missions (Thomas, 12). Cross fertilization between the different bridges of engineers is important since there is exchange of ideas which are likely to reduce possible failures. Ideas can range from those involving the design of the flight, operations within the flight and analysis that will widely study the flight (Johnson, 25). Another crucial step is that of ensuring all involved engineers are familiarized with the actual hardware especially the one that will ensure that there is productive usage of the flight data. It is good when one is able to establish a chief engineer who will be able to spend ample time in the restrained integration of all the elements described within the flight system. Summary and recommendation From the discussion above it can be strongly affirmed that the anomalies within the flight that occurred on 14th may 1973 was widely attributed by the negligence of several individuals. Before embarking on such an important mission it is very important that one assembles all the required elements that will ensure that the whole project becomes a success. Success is achieved through ensuring concerned individuals are able to accept to be accountable should there be any problem that might a raise (Lindsay, 30). As part of recommendation, it is very essential that a simple and straight forward solution toward these problems is designed so as to minimize incidences like this repeating in the near future. For instance, it is noted that meteoroid flux should be lower as compared to the ones indicated in the calculations. It is very essential that new analyses are incorporated so that maximum protection is achieved. It is good that there is an establishment of a bond between additional metal layer and the OWS wall so as to prevent handling the problem as that involving statistics. This can be achieved through ensuring that the entire covering of OWS is not covered (Kraft, 126). It is essential researchers should further their studies on the effects normally associated with weightlessness of living objects such as human beings. It is very evident that Skylab tries to utilize man as an engineer and as individual who is concerned in the research. By so doing it ensures that it provides an equal opportunity or chance in the assessment of one potential capability for prospect space missions. Feldman, Heather. Skylab: The First American Space Station. New York: PowerKids Press, 2003. Pp 24-27. Shayler, David. Skylab: America's space station. London: Springer, 2001. Pp 221-226. Zimmerman, Robert. Leaving earth: space stations, rival superpowers, and the quest for interplanetary travel. Washington, DC: Henry, 2003. Pp74-80. NASA. NASA Investigation Board Report on the Initial Flight Anomalies of Skylab 1 on May 14, 1973. 18 Nov. 2010. Web. 6 Aug. 2003   Thomas, Frieling. "Skylab B: Unflown Missions, Lost Opportunities". Quest, 5.4 (1996): 12. Wade, Mark. "World Manned Spacecraft Characteristics." Journal of the British Interplanetary Society, 34.1 (1981): 425. Lindsay, Hamish. Tracking Apollo to the moon.   New York: Springer, 2001.   Pp 21-43. Skylab space station. 18 Nov. 2010. Web. 2010 Suszkowski, Daniel. â€Å"Skylab Investigation.† ICES Journal of the Marine, 7. 3 (1998): 205-213. Hoffman, Rudolf. â€Å"Visual Light Flash Observations on Skylab 4†. ICES Journal of the Marine, 32. 5 (2006): 212-234. Johnson, Lyndon. Skylab EREP investigations summary (NASA SP). New York: Springer, 2001. Pp 21-33.

Industrial Applications of Computers Case Study

Industrial Applications of Computers - Case Study Example Profitable papermaking means continuous production with minimal deviations from quality specifications. While steady-state control performance is essential, the elimination of waste during transitions such as changes of grades and break recoveries is where the greatest economic gains can be achieved. As production rates rise, often stretching the design capacity of the paper machine, Quality Control Systems (QCS) allow the company to improve the efficiency and quality of the production. This is evident from the significant new developments in quality measurement and control since the introduction of cross direction (CD) control seen in the past years since the 1970s.For paperboard manufacturing using the paper machines, it is necessary to establish the control system that provides a high-mix, low-volume product production. Control parameters are the key component of optimizing the operation, and so the paperboard company should consider an advanced performing QCS. In many cases, the control parameters of paperboard production facilities are normally fixed to the same value using a typical product. Many of these paper production facilities operates in a high mix, low-volume condition because the equipment are consolidated and diverse products are produced to satisfy the end user’s request. Moreover, the paperboard production equipment is often disturbed by the processes of feed preparation or by auxiliary systems. It is for this reason that the control parameters require optimization.... Control parameters are the key component of optimizing the operation, and so the paperboard company should consider an advanced performing QCS. In many cases, the control parameters of paperboard production facilities are normally fixed to the same value using a typical product. Many of these paper production facilities operates in a high mix, low-volume condition because the equipment are consolidated and diverse products are produced to satisfy the end user’s request. Moreover, the paperboard production equipment is often disturbed by the processes of feed preparation or by auxiliary systems. It is for this reason that the control parameters require optimization by deploying a plug-and-play quality control system. Plug-and-play Quality Control System Network Diagram The plug-and-play QCS is a cost effective tool that is used to monitor and control the processes of producing the paperboards. The QCS will consist of a scanner that is driven by a logic controller that is progra mmable, measurement sensors that are network-ready and a station for operations which is connected to a high speed Ethernet network. The architecture provides unlimited connectivity that helps in configuring the system as part of the mill wide distributed control system for full integration into the business network (Oloufa & Thomas, 1999). The configured system featured an off-the-shelf software suite that is configured for high resolution cross the profiles of the equipment, providing historical trends, statistics as well as the supervisory controls of MD/CD. The QCS system is built with components that meet the standard of the industry providing a generic installation designed give self maintenance to the

A timeline of the September 11 attacks Essay Example | Topics and Well Written Essays - 1250 words

A timeline of the September 11 attacks - Essay Example This essay provides a short information about the catastrophe and further events till September 30. Three hijacked planes hit the World Trade Centre in New York City and the Pentagon in Washington DC. A fourth plane crashes into a field in Pennsylvania.The FAA stops all flight operations in the capital and around the nation for the very first time in the history of America (House of Commons Librarary, 2001, pp 1-72) The president: George Bush addresses the nation and vows to find the people responsible for the attack in order for justice to be served. Trading at the world trade centre is stopped as the police are sent to conduct rescue services in the areas affected the attacks. International leaders shoe their outrage over the attacks as they move in swiftly to help in the rescue operations (Watchtel, 2009, pp 1-48). September 12, 2001: the New York mayor at the moment Giuliani notifies that the death toll at the world trade centre will be in thousands (Anderson, 2003, pp 1-30). The fire fighters from various departments and the military continue combating the fire in the two cities of New York and Washington. The president terms the attacks as acts of war and requests the congress to help rebuild America by devoting $20 billion (House of Commons Librarary, 2001, pp 1-72). September 13, 2001: president bush vows to lead the world to victory over terrorism terming the attacks as the first war of the 21st century (Englar, 2007, pp 1-25). The then secretary of state Colin Powel after consultations with the department of defence identifies Osama bin Laden as the prime suspect with the then deputy Defence secretary saying that the US will respond with a sustained military campaign. The FAA allows the airports to begin operations but under tight surveillance (Langley, 2006, pp 3-50). September 14, 2001: President Bush declares a national emergency and instructs the military to call fifty thousand soldiers to active duty (House of Commons Librarary, 2001, 1-72). The department of defence releases a list of the nineteen suspected hijackers. At the same time Afghanistan’s Taliban militia group warn America of revenging if the US attacked it for hosting the Al-Qaeda leader Osama bin Laden (Watchtel, 2009, pp 1-48). September 15, 2001: the president declares waging an unrelenting war to hunt down terrorist and the state department cautions that any government that supports terrorism will be isolated (House of Commons Librarary, 2001, pp 1-72). Pakistan on the other hand agrees to help Americans to attack the neighbouring Afghanistan. September 16, 2001: Osama bin Laden denies involvement in the attack as President Bush pledges to rid the world all evil doers brushing off Osama’s claims (House of Commons Librarary, 2001, pp 1-72). The vice president Dick Cheney warns anyone who harbours terrorists will be dealt with mercilessly by the US. United States send a delegation to Afghanistan to release Osama or risk massive attacks (Schier, 2 008, pp 6-100). September 17, 2001: Taliban leaders say that a grand council of Muslim clerics will decide on whether to hand in Osama or not. The Federal Reserve of America cuts its key interests in a bid to keep the economy from plunging into a recession. The FBI releases a list of names that they want detained both in the US and abroad. Trading begins at the New York stock exchange. September 18, 2001: the Taliban Muslim leaders call on all Muslims to wage a Holy war in the event that America attacks them. The defence secretary says the administration is preparing attacks on terrorists and those countries that support terrorist activities (Heider, 2008, pp 1-41). President Bush leads the US people in a moment of silent to remember the people who perished in the attacks (Langley, 2006, pp 3-50). September 19, 2001: the Pentagon gives an order that combat aircrafts should base in the Persian Gulf. President Bush continues with his push to get world leaders to support him in the fig ht against terrorism and meets with different

Innovation in Construction Research Paper Example | Topics and Well Written Essays - 750 words

Innovation in Construction - Research Paper Example In enhancing the value brought in by this process, a lot of modifications have been made on it time after time. These improvements have consequently come along with some advantages together with shortcomings. It is therefore logical that, as these changing procedures are implemented in the industry; proper steps are taken in dealing with areas where gaps exist. Recycling in construction In construction, recycling basically denotes the taking apart and reprocessing of recoverable waste resources produced at the time of construction and modification. Bits and pieces of unused materials, packaging, old resources and remains collectively comprise of the latent recoverable materials. All these can be used, together with other new materials in the erection of new structures. Aside from the use of the recycled matters in constructing new structures, this process can also be applied in the aspect of renovation where structures like windows and doors, masonry resources and appliances are also recycled (CMRA, 2011). In many cases, wastes accrued from construction sites are directed into landfills which consequently are burdened with increased loading and functions. At the same time, some waste construction materials carry chemicals which if not well handled would only help in enhancing the perennially increasing levels of pollution. An example of this is the kinds of chemical substances which emanate from treated wood. Preventing these scenarios has made recycling the most logical precautions in handling wastes obtained from construction sites. In achieving these goals, personnel in the construction industry either recycle the materials directly into similar products for use again while other are converted into other functional products. Recycling of wastes in the construction industry follows a rather general procedure. The process begins with onsite separation where recyclable materials are separated from other wastes. This is basically the most important aspect of the process and though initially posed challenges, has today witnessed massive improvements thanks to the technological advancement that the world of construction has at its disposal (CMRA, 2011). Here, construction officers, highly conversant with material sorting strategy set up containers for recycling, containers which they clearly label as per the requirements. Ones the reusable wastes are obtained, they are either reprocessed for reuse in the same form they were initially of modified to be used in newer forms. Technology is rapidly advancing in construction recycling. This is despite the limited available technologies at the local levels. One of the technologies synonymous with recycling in the construction industry in modern times includes the â€Å"Recore technology† known for the construction of walls by use of recovered waste materials. This technology is known for the generation of eco friendly wall coverings which carry which also extend some other advantages to the industry and the consumers. The wall coverings produced by this technology are generally durable an added advantage to the fundamental levels of energy saved in the production of these walls. Aside from the recycled walls technology, there also exists the advanced concrete technology which focuses on the production of recycled concrete. The advanced concrete technology applies the heating and rubbing procedures in producing the end

Marketing Environment Essay Example | Topics and Well Written Essays - 1750 words - 2

Marketing Environment - Essay Example While some of these factors are easily controllable by the firm, others are difficult or impossible to change and as a result, need to be accommodated in the business decision making. According to Kotler (1999, p. 10), â€Å"A company’s marketing environment consists of the internal factors & forces, which affect the company’s ability to develop & maintain successful transactions & relationships with the company’s target customers.† A business’s marketing environment consists of various internal and external factors. These factors are sub-divided into various micro and macro factors. A business’s internal marketing environment consists of factors such as, machine, workers and employees, equipments, capital and internal operations that guide the internal marketing decisions. Internal marketing environment comprise forces that affect an organization’s ability to cater to the consumers. These factors may include sales representatives, marketing managers, marketing plans, marketing budget, inventory, procedures or logistics (Ferrell and Hartline, 2010). It also includes departments, which are often ignored during the decision making process. For instance, besides the marketing, finance and human resource, the management should also consider other departments such as, research and development, accounting department and personal department, before making any business decisions (Homburg, Workman and Jensen, 2000). A discussion on the various marketing environment factors will help in better evaluation of their influence on marketing decisions undertaken b y a business. External marketing environment factors are further subdivided into macro and micro environment factors. Micro-environmental factors consist of suppliers, marketing intermediaries, consumers and competitors. Suppliers are individuals delivering important resources for producing services and goods. Supplier policies significantly affect marketing decisions of the managers

In-school Suspension and Off-school Suspension Essay

In-school Suspension and Off-school Suspension - Essay Example On the other hand, out-of-school suspension (OSS) is an act to keep away the student from school for short-term periods (Saint Helens , 1998). This temporary keeping away of the student is in lieu of investigation that can lead to removal of the student from the school itself, or pending the implementation of some definite measures such as internment through the action of the court, or mental or physical assessment. When the student is suspended, he or she is informed of the acts that constitute the charges, and also the fact of suspension on account of these charges (Saint Helens , 1998). In-school suspension (ISS) has several benefits over out of school suspension. An obvious important benefit is that the student does not have to break off his or her learning by being suspended from the school. The benefits of ISS include (District of Columbia , n.d.): The students who face suspension continue to be taught though in an atmosphere that is restrictive. Everyday they are also provided counseling individually and in a group. They are provided with the opportunities at identifying remedies for their problems (Collins, 1985). The objectives are to pro-actively lead the students to come back to the normal group of students as fast as possible and lastingly too, raise self-worth, heighten the consciousness of oneself, and lessen the troublesome and disorderly conduct. A change in outlook of these students to those who are in authority, increasing their capacity to identify their own strong and positive abilities, enhancing their confidence to own up and be responsible for their actions and improving those areas that they lack or are deficit in (Collins, 1985). They are also encouraged to seek ways to resolve any problems that they may have at home. Attendance is not improved by ISS and it shows a high recidivism rate. However, ISS does not seem to show a decline in disruptive behaviors especially in those students who have behavioral disorders (Yancey, 2001). According to Stage (1997, p.72), "There were no apparent effects of the in-school suspension interventions on classroom disruptive behavior, since there were no systematic differences in disruptive classroom behavior by in-school suspension phase. In fact, the rate of student disruptive behavior remained rather constant across the four in-school suspension interventions, indicating that no type of in-school suspension generalized to classroom behavior any more efficaciously than another" (cited in Yancey, 2001). Pros and Cons of OSS OSS is resorted to mostly in offences that are both trivial and avertable like breaking of the rules of the school which actually does not in any way pose a threat or lead to any violence; at best this is a device to retain a safe school environment (Bruns, Moore, Stephan, Pruitt & Weist, 2005). On the contrary, there are clear indications that OSS, in

DB4 Essay Example | Topics and Well Written Essays - 250 words - 1

DB4 - Essay Example Once the goal of the process is defined, the next thing is to make a team that will be responsible for doing the job analysis; the team should comprise of HR people who have expertise in identifying the key factors related to various jobs (Cronshow et al., 2007). When job analysis is conducted, the most important elements or areas that need to be focused are duties, tasks and responsibilities of the job, material, tools and equipment required for the job, working conditions and reporting responsibilities, and qualities, skills and experience that will be used for the tasks performance (Shukla, 2011). When the applicants are short-listed for a position, the employer will have to ensure that they have the skills, qualifications and abilities required to perform the particular job. During the interview sessions, the candidates should be given some situation questions so that their ability to handle the tasks can be judged and it will give an idea about the compatibility of the candidate with the specified position. Hence, these are the two key areas that the employer will have to consider to ensure that the right person is hired for the job so that he/she can be beneficial for the organization’s enhanced