Electrical Engineering Essay Example for Free

Electrical Engineering Essay Mr Rowley wanted a switch board for his new hotel, the Medina Palms in Watamu. It needed to handle enough power for lights, heat and air conditioning in all 50 separate villas, the pool’s filtration system, security cameras, and the hotel’s kitchens and bars: drawing approximately 1000kVA from the national grid and directing it through hundreds of individual switches and control units built into one central console. I picked up my pencil- this was not an electrical engineering exam at school: instead of lounging at the beach with my friends, I had chosen to spend my summer at Specialised Power Systems (â€Å"SPS†), designing and building Mr. Rowleys‘s switchboard. As the engineers and I gathered around and started to draft designs for the switchboard, we quickly recognised several key issues. Mr Rowley wanted the switchboard to have power capacitors to increase general efficiency, and the capability to work coherently with generators and invertors to account for the Kenyan grid’s frequent blackouts and power surges. Both capabilities are extremely important in Africa, not only for luxury hotels but also for the health of national infrastructure. By working on Mr. Rowley’s luxury hotel, I could learn to implement the technical knowledge from study into real-world projects, such as expanding and improving the Kenyan national grid and bringing cost-efficient generators to rural areas. We set to work. Mr. Rowley’s first requirement for his switchboard was to have a power-factor capacitor bank, which allowed me to explore in depth a component I first studied through my A-levels physics classes, and one that is crucial to energy efficiency and modern electrical systems. Essentially, capacitors are used to store electrical charge. Mr. Rowley’s requirement meant that his system, which normally drew 1000kVA from the grid, would have to be able to utilise 100kVA in order to account for the extra power occasionally needed to start water pumps, electric lights, electronics and emergency equipment. Yet an additional multiplier, called the diverse factor (generally calculated to be 80%), is added to the equation to account for the fact that not every piece of equipment is required to turn on at once. We took the textbook equation to determine capacitor requirements: KW = cosÏ• X kVA cosÏ• =0.9 minimum requirement And calculated the Medina Palm’s specific capacitor requirements: KW = 0.8 X 500 = 400kVAr kVAr =1000kVA X 0.5 X 0.8 In order to build a system capable of handling 400kVAR, we determined that a bank of 8 connected 50kVAr power capacitors would be the best solution as a automatic unit. For a generator capability we fitted the control panels with Tem Transfer Relays, devices that work in conjunction with Auto-Start-enabled generators to automatically supply power to the system in case of a power failure. By working with the generators at the Medina Palms, I learned skills that are critical to the infrastructure of Kenya. For example, only 30% of Kenya receives electricity from the national grids, and the grids are unreliable and confined to major cities. Generators can bring power and all its benefits to the rest of Kenya, and projects like the Medina Palms bring the technical skills and economies of scale that can make generator power accessible to the wider population. I hope to leverage my previous study of A-level physics, experience with SPS, and future degree in Engineering to bring such modern, affordable electrical capabilities to Kenya.

Sketches of the Valley (spanish) :: Spanish Essays

Reportaje â€Å"Estampas del Valle† Abstract: â€Å"Estampas del Valle†, or â€Å"Sketches of the Valley†, is a book written by a well-known Chicano author, Rolando Hinojosa-Smith. The book is divided into four sections, in which he writes about the â€Å"sketches† of the characters he establishes, things that happen such as a sudden murder, the lives and deaths of elders in the community, and of the life of Rafa Buenrostro. Belken County a fictitious location in the Rio Grande Valley in Texas. He writes of many that live there, ranging from young children, to prostitutes, to priests, ect. He writes of the dialogues, the stories, and the occurrences that are common regardless of ethnicity, with a humoristic view. His masterpiece is written in first person narrator and omniscient author consisting of letters, pieces from journals, diaries, and recollections of conversations. Rolando Hinojosa-Smith nacià ³ el 21 de enero del aà ±o 1929, en Mercedes, Tejas. Su padre un Mà ©xico americano, Manuel Guzmà ¡n Hinojosa y su madre Carrie Effie Smith, una blanca. Hinojosa nacià ³ el menor de dos hermanas y un hermano. A la edad de quince aà ±os, el comenzà ³ publicando su primeras obras en inglà ©s, en la publicacià ³n Creative Bits. Despuà ©s de graduarse de la escuela secundaria en el aà ±o 1946 a la edad de diez y siete aà ±os, se alisto en el ejà ©rcito donde cumplià ³ dos aà ±os. Hinojosa luego atendià ³ la Universidad de Tejas en Austin, por un corto tiempo antes de su reactivacià ³n en 1950 al ejà ©rcito para ir a la guerra de Corea. El estuvo estacionado en Fort Eustis, Virginia, donde fue director de una publicacià ³n del campo. Luego cuando fue estacionado en el Caribe trabajà ³ como anunciador de radià ³ y fue director de la publicacià ³n Carribbean Army Defense Command. Despuà ©s de su participacià ³n en el ejà ©rcito Hinojosa termino su educacià ³n en la Universidad de Tejas en Austin en el aà ±o 1954 donde se gradà ºo con un tà ­tulo en espaà ±ol. Empezà ³ su carrera enseà ±ando gobierno, espaà ±ol, historia, y latà ­n por un tiempo en la escuela secundaria de Brownsville, Tejas. En el aà ±o 1969, se casà ³ con Patricia Louise Mandley y tuvieron tres hijos, pero desafortunadamente resulto en un divorcio en el aà ±o 1989. Hinojosa continà ºo sus estudios de maestrà ­a en Highlands University en Las Vegas, Nuevo Mà ©xico, y luego su doctrina en la Universidad de Illinois en Urbana. Despuà ©s de recibir su doctrina empezà ³ como profesor en Trinity University en San Antonio, Tejas, en el aà ±o 1969.

Metabical: Positioning and Communications Strategy for a New Weight Loss Drug Essay

1. What is the decision-making process for Metabical? Who is involved? Metabical needs to decide whom to sell and what means to use in order to reach this group successfully. This decision has to be taken by Printup and her marketing team. The target market should be identified; first of all, the segmentation of the market needs to be done in order to analyze which segment of the market would be more attracted by this product. Besides surveyed people, physicians play a very important role. 2. How should Printup think about the segmentation of potential Metabical consumers? Who is the optimal target consumer? Printup should take into consideration the different goals individuals have towards losing weight, since not everyone have the same reason to lose weight, some are moved by the health risk and others just to look good. Furthermore, the willingness and ability to pay for the product should be considered to identify the optimal target market. After the data was studied, the optimal target consumer should be overweight women (25 to 30), ages 35 to 65, who are college educated since this group takes care more about their health and visit the doctor with frequency. 3. How should CSP identify and employ the differential advantages that Metabical offers to position itself in the marketplace? Since Metabical will be proven to have better results than any other product in the market along with less dangerous side effects, it will be easier to be differentiated from its competitors. It needs to be positioned as a quality product, backed up by the FDA. Then it would be perceived as a luxury type of product that will help individuals who struggle to lose weight to feel and look better. For a successful communication strategy, CSP has to focus on the individual and the physician, for the first group, a celebrity spokesperson should be used since they have power over the audience for being known and trusted. Furthermore, the message should highlight the importance of being healthy and having a better life.

Self harm in adolescents Free Essay Example, 2000 words

If they are not cooperating and increase the frequency of hurting self, consulting the professional could be necessary to enable them cope with their challenges. The legal authorities may be involved in establishing the nature of injury, if it is caused by the adolescent or by another person. Medical intervention may be necessary. The adolescent could be having wounds or infection that needs treatment. Understand the emotions that cause the adolescent to hurt self and possible motivation for their actions. Enquire if they inflict their wounds or harm when alone or when with others. Be sure to know if they share objects of injury with others. Investigate what triggers the strong emotions. Moreover, find out who knows about the injury. Get their current situation and the context that causes them to perform self injury in detail. Asses if the adolescent has intentions for suicide if they could be in danger. Sharing information with others weather in a conversation or in a written form is unethical (Canadian Psychological association, 2000) Counselors have a responsibility to parents as well as the school. They are responsible for determining appropriate time to give the information to parents and to the school. We will write a custom essay sample on Self harm in adolescents or any topic specifically for you Only $17.96 $11.86/pageorder now They can asses if the adolescent has adequate skills to overcome the issues causing them injure self. They can teach them how to manage anger and share this role with the parent where appropriate. Guest parents and professionals can be invited to talk to adolescents about common challenges. They can collaborate with other professionals or spiritual leaders if need be. They may consider getting medical help for injuries or rehabilitation in the case of alcohol and drug abuse. Alternative means of dealing the self injury should be adjusted according to individual needs as Kress (2006, p. 23) mentions. 3. Therapeutic interventions and strategies used in the management of self-harm in adolescent. To be able to assist harm themselves, it is important to implement appropriate intervention that suits their needs. The following is a range of therapeutic interventions and strategies that can be used in the management of self-harm in adolescents. Establishin g a therapeutic relationship could assist in managing self-harm. Ousey and Ousey (2010, p. 38) mention that establishing a relationship that encourage emotional support and give affection is important. This will facilitate the adolescent to be able to communicate. When an adolescent hurts themselves it could be a way of communicating where they call for attention.