using Solid Edge to determine the Second Moment of Area for the different cross-sections. [pic] Equations Use units: Force (N)‚ Length (mm)‚ Stress (MPa) E = Young’s Modulus or Mod of Elasticity (MPa) I = 2nd Moment of Area or Area Moment (mm4). Can calculate using SolidEdge sketch. BENDING [pic] In our case‚ we must first convert the mass to Newtons (N). W = kg * 9.81 L is the span length in (mm). I is the Second Moment of Area in (mm4). We can calculate this for a rectangle using
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Friction on a surface. Aim: To establish the relation between weight of a rectangular wooden block lying on a horizontal table and the minimum force required to just move it using a spring balance Materials required: A rectangular block of wood with a hook ‚ set of weights‚ strong thread and a spring balance. Theory: The force of friction acting on a block of wood is proportional to the normal reaction acting on the block. By the third law of motion‚ normal reaction is equal to the weight
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In order to avoid the problem of mud cracks and decrease the resistivity‚ the Ti based ATO (antimony doped tin oxide) coating are prepared by thermal decomposition method on the surface of the porous titanium. The ATO coating was characterized and the preparation conditions were optimized. In the experiments‚ the sintering temperature and holding time both can promote the oxidization of the substrate Ti. Although the resistivity of ATO is higher than that of Ti‚ ATO coating can protect the substrate
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The local area network (LAN) is home to sheer bandwidth and countless client server applications. Different companies have radically different networks; some have a single PC and others have hundreds of locations and thousands of computers. This page is intended to explain the basic principles and components frequently found on the LAN. The internal network is usually built with the highest bandwidth available. It is then connected to a tiny internet connection which is almost always a bottle neck
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Introduction: A hovercraft‚ also known as an air-cushion vehicle or ACV‚ is a craft capable of travelling over land‚ water‚ mud or ice and other surfaces both at speed and when stationary. Hovercraft are hybrid vessels operated by a pilot as an aircraft rather than a captain as a marine vessel. The first practical design for hovercraft derived from a British invention in the 1950s to 1960s. Hovercrafts are used for patrolling public lakes/ponds and also used for racing. Hovercrafts are an easy alternative
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upon the materials involved. What is the nature of the surface obtained by electro discharge machining? The surface is heated by the sparks to either melt or even vaporize metal. The melted metal is washed away by the dielectric. The sparks cut small‚ spherical shaped‚ cups into the surface. The surface is covered with recast (melted and resolidified) metal. Thus‚ there will always be a hard‚ brittle‚ surface layer on EDM part surfaces. What process would you recommend to make many small
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tsaE eht ni aixopyH Accepted Manuscript Author manuscript‚ published in "Marine Environmental Research 64‚ 4 (2007) 399" DOI : 10.1016/j.marenvres.2007.01.007 ACCEPTED MANUSCRIPT Hypoxia in the East China Sea: one of the largest coastal low-oxygen areas in the world Chung-Chi Chen1‚ *‚ Gwo-Ching Gong2 ‚ Fuh-Kwo Shiah2‚ 3 Deparment of Life Science National Taiwan Normal University 88‚ Sec. 4‚ Ting-Chou Road Taipei 11677‚ Taiwan. 2 1 peer-00562971‚ version 1 - 4 Feb 2011 Institute of Marine Environmental
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Critical interpretations Through this story‚ Robinson introduces the classic theme of not judging people by their appearance; rather‚ there is more to a man than what appears on the surface. The idea that money cannot buy happiness is also suggested. The speakers are townspeople who admire Richard Cory. The surface and basic structure of the poem – description‚ followed by a shock ending‚ and obvious interpretations as "wealth and beauty do not mean one is happy" and "one does not know the heart
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1. SURFACE RUNOFF INTRODUCTION: Runoff means the draining or flowing off of precipitation from a catchment area through a surface channel enters into a stream channel. It is convenient to visualize three main routes of travel; overland flow (air hujan limpahanpermukaan)‚ interflow‚ and ground water flow (air dari punca bawah tanah). 1 Runoff results from rainfall occurrence in a hydrologic catchment. Rainfall-runoff relations are Interflow/subsurface and base flow/groundwater flow
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structuring they picked the most likely hypothesis to explain it. They used a total of six parameters for Pteridinium which included length‚ width‚ wall thickness‚ hollowness‚ overlap‚ and termination. These parameters were used to determine specific surface area to volume (SA/V) ratios for the organism. The control specimen for this study was a modern osmotrophic megabacteria. The SA/V ratios of the ediacaran organisms were compared to the SA/V ratios of these megabacterium to see if osmotrophy was a viable
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