Tuesday, February 25, 2020

Revision for Integration of Sources Essay Example | Topics and Well Written Essays - 750 words

Revision for Integration of Sources - Essay Example Below sentences with different sources derived from the article â€Å"Educating Young Adults about Sex.† The essay is part of my writings in English 1302. This is part of the original text under evaluation. From the sentences above, it is evident that there is a gap between the ideas in sentences and the citation. This is because the writer did not impact on source integration. One style of introducing sources may turn out to be monotonous. This is because the reader can prejudice the in suction of these citations. Writers should incorporate different source citation techniques acceptable in writing guidelines book. This will impact on the follow of ideas, follow of grammar, marrying of ideologies, and at the same time, readers will have an interest in reading the article (VanderMey 24). Phrases such as â€Å"From ... writings or book, it is evident that HIV is a fatal infection,† will add taste to the sentence. It will also prove to the reader that the writers are confident of their art work. Other suitable phrases are in reference to, in relation to, according to, from ... reading it is acceptable that..., also show that there is an admirable level of precision (Borchers 33). The writer of the original reference has admirable distribution of source citation. Many citations in a single sentence may lead to confliction of ideas. They can also lead to loss of meaning, when used by incompetent writers. It is appropriate for writers to proper make use of one source citation in each sentence. One can also depict that the sentence carrying the citation has no weight. In a paragraph, such sentence should create some emphasis, unlike other sentences. Form the above correction, it is noticeable that integration between the article and the source citation in crucial in all writing practices. As a reader read the sentences above, one will identify that there is a follow of ideals. Such follow proves to the readers that

Saturday, February 8, 2020

How to Use Gold in Wind Turbine Case Study Example | Topics and Well Written Essays - 2000 words

How to Use Gold in Wind Turbine - Case Study Example This explains the re-emergence of wind power as a green and sustainable source of energy. The argument behind the re-emergence of wind powers source of energy cannot only be looked at in the context of milling rain or pumping of water as was the case in the past, but is all about the energy needs that have grown due to globalization and industrialization (Schmid and Klein 1990, p.17). Wind power is generally harnessed from wind in motion, which is transformed into energy with the help of a wind turbine. Blaabjerg and Chen (2006 p.1) note that wind turbine has been one of the fastest growing renewable energy technologies. Its development began in the 1980s with just some tens of kilowatts in terms of power rating to the current megawatts. Blaabjerg and Chen argue that in the past, production of wind power did not have a lot of impact in the system of power operation and control, but today it contributes a lot in energy supply since the level of power penetration is on the rapid increa se (Paraschivoiu 2002 p.45). In the beginning, the technology used in wind turbine was generally the squirrel-cage induction generators, which were directly being connected to the grid. During this time, there were no active controls of active power reactors. The parameters used for control has become necessary due to the increase in the power range for the wind turbines. Blaabjerg and Chen note that the introduction of power electronics has led to a change in the basic characteristics of the wind turbine from a source of energy to an active source of power. In recent times, many nations are making a rash toward the use of gold in the manufacture of the wind turbines. This paper will discuss the main parts that make up a wind turbine and their functions. The paper will also discuss the choice of materials that are used in the manufacture of the major parts and where gold as a raw material is used under the current design and where it can be used. Main Parts Of A Wind Turbine And The ir Functions Ancona and Mc Veigh (2001 p.1) note that wind turbines usually come in a varying sizes and configurations, built from different materials. The wind turbine consists of four main parts; the rotor which has wing-shaped blades connected to a hub; a nacelle which holds a drivetrain consisting of a gearbox, support bearing, connecting shaft, the generator and the machinery; a tower; and the electrical equipment mounted on the ground Ancona and Mc Veigh (2001 p.3). Turbine Rotor Blade The turbine rotor is the part that coverts the alternating wind energy into a mechanical energy, which is then converted into electrical energy via a generator, which is then moved to the grid with the help of a transformer and lines of transmission. Within the wind turbine there exists a blade aerodynamically designed that captures the wind power and converts it to rotating mechanical energy. Blaabjerg and Chen (2006 p.3) note that the number of blades that make the rotor may vary. The speed of rotation usually decreases with an increase in the radius of the blades. For instance, for a wind turbine of megawatt range, the speed of rotation ranges between 10-15 rpm. The blades exist in different sizes from about 34 to 55 meters. The rotor blades are made of materials such as carbon fiber, balsa wood, and fiberglass with high tensile ratio. The materials are usually modeled to form airfoils that