than half of the bridges that were made‚ were made out of stone. But since the United States had so much wood‚ they made a lot of wooden bridges in those times and a vast majority of them were truss bridges. As the years passed on‚ the real iron and steel organizations are gone‚ truss bridges stay as their legacy. One of the most famous truss bridges is the Tokyo Gate Bridge in Japan. There is a variety of truss bridges‚ like the Pegram truss‚ Howe truss‚ and the Long truss. The Pegram truss has wires
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Deadweight testers are used as a for accurate measurement to calibrate pressure gauges‚ transmitters‚ transducers‚ recorders and controllers. Deadweight testers are very accurate‚ they produce pressure by applying force using calibrated stainless steel or brass weights over a predetermined area. There are numerous models available to meet specific applications. A typical deadweight tester consists self-contained pump for the generation of pressure‚ they also include a piston‚ cylinder‚ table‚ weights
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The Aluminum Industry in 19941 and Aluminum Smelting in South Africa: Alusaf’s Hillside Project2 1) Is primary aluminum production an attractive industry? Why or why not? Within the framework of the Structure-Conduct-Performance (SCP) model3‚ the primary aluminum production industry (“the industry”) in 1994 can be described as perfectly competitive. The industry is characterized by a large number of competing firms – the largest of which has only 4.1% of total industry capacity; homogeneous
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manufacturing process and the benefits to the designer and consumer. Due to new technology‚ the tennis racket has changed materials. Throughout the history of tennis‚ rackets were made of laminated wood. However‚ in the late 1960’s‚ Wilson produced a steel tennis racket which featured a wire wound around the frame to make string loops. In the 1980’s‚ the introduction of graphite tennis
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with nothing then became successful on his own. Andrew was born in Scotland in the year of 1835 and grew up poor. He later started working as a bobbin boy but had little earnings at the age of 12. In 1872‚ he adopted the Bessemer Process and built a steel mill in Pittsburgh. As a result of his wealth‚ Carnegie gave away $350‚695‚653 which helped others. The philanthropy of Andrew Carnegie made him a known hero. Carnegie was a self-made man according to document A. In document A‚ 2 photos are shown
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return on investment will be difficult to enter because entry barriers are high‚ suppliers and buyers have only modest bargaining power‚ substitute products or services are few‚ and the rivalry among competitors is stable. An unattractive industry like steel will have structural flaws‚ including a plethora of substitute materials‚ powerful and price-sensitive buyers‚ and excessive rivalry caused by high fixed costs and a large group of competitors‚ many of whom are state supported. Diversification cannot
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Sand making machine technology upgrade to improve the service life Sand making machine equipment is used to produce the core equipment of artificial sand‚ is the main equipment of sand factory. Because of the long time working in the sand making machine‚ the wear of the parts of the vsi sand making machine is increased‚ and the service life of the equipment is affected. How to improve the service life of the sand making machine becomes an important problem for the large sand production machinery
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enough to provide them mobility yet strong enough to stop European blades‚ and used weapons made of a steel so well-forged that it bent under pressure without breaking‚ yet held an edge so sharp it could cleave a man in half with only the force behind one arm. What was the secret steel of the Near East; it’s forging guarded so well by the sword smiths of Syria? That steel was called Damascus steel‚ a term used by the Crusaders to describe the
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Problem Description: The main objective of the assignment is to create a 3-D finite shell element model of a cantilevered structure that is formed by welding two steel channel sections of identical cross-section at an angle of 120˚ to each other‚ In order to analyse the 3-D shell elements of the cantilevered under two different load cases‚ the first case is to divide the load equally between the two legs of the channel section‚ and the second case is to apply all of the load in one leg. Also‚
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North American Hoganas Incorporated main goal is to make more for less. As a company‚ they specialize in manufacturing high crafted metals for commercial usage. The top five products they manufacture are brazing filler metals‚ inductor and power cores‚ powders for sintered components‚ thermal surfacing powders‚ and soft magnetic components. With their products‚ they want to strive to make the world eco-friendlier by creating well made products with less natural resources. As a group‚ we interviewed
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