Clay heap for brick making 1 Roofing fired tiles Flooring tiles Porcelain (china) dishes 2 INTRODUCTION Ceramics encompass such a vast array of materials that a concise definition is almost impossible. However‚ one workable definition of ceramics is a refractory‚ inorganic and non-metallic material. Ceramics can be divided into two classes: traditional and advanced. Traditional ceramics include clay products‚ silicate glass and cement; while advanced ceramics consist of
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Engineering Materials Week 10 14.4 (a) Compute the repeat molecular weight of polypropylene. (b) Compute the number average molecular weight for a polypropylene for which the degree of polymerization is 15‚000. 14.10 Using the definitions for total chain molecule length L and average chain end-to-end distance r‚ for a linear polytetrafluroethylene determine: (a) the number average molecular weight for L=2000 nm. (b) the number–average molecular weight for r=15 nm. 14.19 (a) Determine the
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ChE 101 Lab Exercise 4 05 December 2012 Materials Balance (Non-reacting Systems) THR/WRU 1. A 40-mol-% aqueous ethanol solution is to be distilled into two streams: a distillate with 98% ethanol and a side stream with 60%. 98% of the alcohol in the feed is to be recovered in these two products; only 2% goes into the bottoms. If the bottoms product contains 2% ethanol‚ calculate the amount of the different streams per 1000 kmol of feed stream. Given: Recovery = 98% of ethanol in
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DIFFERENT CONSTRUCTION MATERIALS OF FURNITURE Woods & Synthetic Woods Hardwood Solids Solid wood furniture is considered the best quality furniture on the market‚ and if you are purchasing furniture that will be in your home for a long time‚ it is a very smart investment. Even with wear‚ solid wood gains character and charm and becomes a part of your family. Solid wood furniture is usually crafted with attention to detail that includes dovetailed joints‚ wood on wood drawer glides‚ and
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MATERIALS : METALS AND NON-METALS Y Iron Coal ou are familiar with a number of materials like iron‚ aluminium‚ copper‚ etc. Some materials have been given in Table 4.1. Table 4.1 : Appearance and Hardness of materials Object /Material Appearance Hardness (Shiny/Dull) (Very hard/ Not very hard) similar change if we try to beat a wood log ? Let us find out. Activity 4.1 Take a small iron nail‚ a coal piece‚ a piece of thick aluminium wire and a pencil lead. Beat the iron nail with
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ASSIGNMENT: Graded Mini Essay What is marketing research? Why is it needed by companies? 1. I hereby certify that I am the author of the attached item of coursework and that all materials from reference sources have been properly acknowledged. 2. I understand what plagiarism is and what penalties may be imposed on students found guilty of plagiarism. 3. I certify that this paper contains no plagiarised material. 4. I certify that this is my own work and that I did not receive any
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The Usage of Information Communication Technology in Science and Technology Information Networks in Sri Lanka R. P. R. N. Premarathna No. 361/1‚ Manel Watta Road‚ Bollegala Gonewala (w.p.)‚ Tel. 0714307681‚ Email. ranjan.nishantha@gmail.com A number of cooperative programmes including exchange of information can be seen among member libraries of the Science & Technology information networks in Sri Lanka. At present most of information networks in other countries engage in their cooperative
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Shear Stress Forces parallel to the area resisting the force cause shearing stress. It differs to tensile and compressive stresses‚ which are caused by forces perpendicular to the area on which they act. Shearing stress is also known as tangential stress. where V is the resultant shearing force which passes through the centroid of the area A being sheared. Problem 115 What force is required to punch a 20-mm-diameter hole in a plate that is 25 mm thick? The shear strength is 350 MN/m2
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Expression of Hope and Pray Hope is used to indicate something that might happen or might happen. So‚ hope expression is an expression that used to indicate something that might happen or might happen.While wish is used to indicate something that is definitely not going to happen / not necessarily happen. So‚ wish expression is an expression that used to indicate something that is definitely not going to happen / not necessarily happen. There are two key words that ussualy used to express the
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because of some factors that give an impact to the archival materials. The factors are divided into two groups which is inherent factor and external factor. Compare to external factor‚ inherent factor is the biggest responsible for deterioration of archival materials. According to M.C. Onwubiko‚ the main factor in inherent factor is acidity that contain in the paper itself or from the atmosphere. The major causes of deterioration of paper materials in acidity. At the earlier century there is papyrus before
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