Timeline of materials technology BC • 29‚000–25‚000 BC – First pottery appears • 3rd millennium BC – Copper metallurgy is invented and copper is used for ornamentation • 2nd millennium BC – Bronze is used for weapons and armour • 16th century BC – The Hittites develop crude iron metallurgy • 13th century BC – Invention of steel when iron and charcoal are combined properly • 10th century BC – Glass production begins in ancient Near East • 1st millennium BC – Pewter beginning to be used in
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Exercise 5 Introduction: Many different species of bacteria look similar under the microscope and also have the same staining results (ex. Gram stain). To be able to differentiate between the different species‚ one can look at the metabolic differences (fermentation)‚ as well as the environmental condition differences (temperature‚ pH‚ oxygen requirements). Being able to manipulate these conditions in a controlled environment can help to correctly identify the exact bacteria. Different media
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Composite Materials A composite is a combination of two or more materials bonded together to gain some overall necessary goods. Types of composite include: laminated materials fibre composites particle composites. A laminate contains thin pieces of material fused together. Common examples are plywood and car windscreens. Wood is durable when exposed to a ductile force equivalent to its grain‚ but if the strength is across the particle it splits simply. A windscreen is made in a parallel way; two
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Unknown Microorganisms May 1‚ 2013 This paper is based on an experiment done in the laboratory over a period of time using the standard method of identifying an unknown microorganism relying on features such as morphology‚ arrangements and biochemical reactions. It was done in succession with each step complimenting the other. At the end of the experiment three microorganisms Bacillus azotoformans‚ Staphylococcus aureus‚ and Escherichia coli was identified and one result was inconclusive. The
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NTRODUCTION Often in the study of microbiology‚ the need to identify an unknown microbe may arise. This aids in the recognition of which microbes are harmful or pathogenic as well as those that may be beneficial to us in some way. This report will detail how a similar project was performed in order to identify two unknown micobes using the techniques that were learnt during the course of the semester. We embarked on the project with the knowledge that we would have to identify a Gram(+) as well
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Section 5 Strength of Materials BY JOHN SYMONDS Fellow Engineer (Retired)‚ Oceanic Division‚ Westinghouse Electric Corporation. J. P. VIDOSIC Regents’ Professor Emeritus of Mechanical Engineering‚ Georgia Institute of Technology. Late Manager‚ Product Standards and Services‚ Columbus McKinnon Corporation‚ Tonawanda‚ N.Y. DONALD D. DODGE Supervisor (Retired)‚ Product Quality and Inspection Technology‚ Manufacturing Development‚ Ford Motor Company. HAROLD V. HAWKINS 5.1 MECHANICAL
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MATERIALS MANAGEMENT INTRODUCTION OBJECTIVES OF MATERIAL MANAGEMENT CHAPTER I. PRODUCTION PLANNING SYSTEM A. Definition B. Aim of Material Management C. Purpose of Material Management D. Economy in Material Management CHAPTER II. FUNCTIONS OF MATERIAL MANAGEMENT A. Material Purchase Planning B. Inventory Management C. Inventory Control D. Categorization and Codification E. Distribution F. Computerization CHAPTER III. FUNCTION OF INVENTORY
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This can be done by the use of instructional materials. Instructional materials are meant to stimulate pupils’ interest in the classroom for meaningful learning to take place. They also afford the pupils the opportunity to make use of more of their senses in the process of learning experiences which are not available in the classroom or school environment‚ are “brought” to the classroom for pupils’ attention through the use of instructional materials. For example‚ the use of the map of the world
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Sustainable material －POROUS PAVEMENT -- OPEN-JOINED PAVING BLOCKS Introduction: This essay will focus on the application of open-joined paving blocks to minimize the impact of urban development on natural drainage system-capturing‚ slowing and absorbing storm water in the urban condition. In the natural system‚ 10% surface flow‚30% evapotranspiration‚ 40% infiltration‚ 20% interflow‚ while in an urban condition‚ 75% surface flow to pipes‚ 15% evapotranspiration
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UNV-103: Topic 3 Supplemental Materials Additional Readings: Four Pillars Read “Four Pillars” on the GCU website. Link: http://www.gcu.edu/About-Us/Four-Pillars.php Student Preparation for Distance Education Read "Student Preparation for Distance Education‚" by Taormino‚ from Distance Learning (2010). (7pgs.) Link: http://library.gcu.edu:2048/login?url=http://search.ebscohost.com/login.aspx?direct=true&db=ofs&AN=55725308&site=eds-live&scope=site New Skills for a New Work Reality
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