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Abstract:

The total hip replacements are indispensable medical procedures that address the hip problems of people. The medical practice for some time has been an adequate solution for hip problems. However, problems has been discovered that the materials used for the implants that are composed of metals and alloys cause fretting corrosion which leads to various health complications and implant failure. This paper discusses the hip joint implants and the fretting corrosion that complicates the medical practice. It touches the adverse effects of the implant corrosion in the health of the patients. Furthermore, this paper divulges some of the design Continue reading...

Application of Visual Art Standards and Obstacles Facing Visual Arts Teachers in Independent Schools

Much of the research available on the topic of changing standards in education is clear on one point: people do not like to change. As a result, teachers—who are, of course, people—also dislike changing the ways that they teach in the classroom. As the researchers investigated further the literature on teacher change, the sentiment that was found to be expressed repeatedly is the sentiment that teachers do not change; that change hurts and that is why people do not change, and that teachers are recalcitrant (e.g., Duffy & Roehler, 1986; Fullan, 1991). The literature suggests that teachers resist Continue reading...

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Cloud Computing Vendors
On the row of cloud computing services competition, among the top racers include Microsoft, IBM, Amazon and Rackspace. One of the top electronic commerce firms in the United States, Amazon.com commenced its business as an online shop for books, downloading flowing videos (DVDs, CDS, MP3s, etc.), jewelry, toys, food, furniture and apparel. This one stop shop eventually extends its product line to shopper electronics including tablets, phone and TV (Fire) and electronic book readers. Started in 1995, Amazon has been offering its online services to clients from Germany, Canada, Continue reading...

Solutions:

1(a) The liner reciprocating motion of the piston is converted into rotary motion of the
crank shaft by a connecting rod, which connects the piston rod to the crank. As can be seen above, because of the nature of the linkage, at the start the crank and the connecting rod remain in a straight line. As the piston moves downwards during the power stroke, point b starts to move clockwise. This is obvious because the piston coming down means the connecting rod has to accommodate the travel of the piston. Finally, when the piston reaches the extreme end, Continue reading...