CH1105: Materials Science Crystal Structure Assoc/Prof Timothy Tan Office: N1.2 B2-34 B2Tel: 6316 8829 E-mail: tytan@ntu.edu.sg Semester 1‚ 2013-2014 2013School of Chemical and Biomedical Engineering Why study structure of crystalline solids? To understand how atoms assemble geometrically into solid structures To describe the structure of solids To relate material properties to its structure 2 Energy and Packing Dense‚ regular packing Energy typical neighbor bond length typical
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Each grain of sugar is made of a small crystal that is made of an arrangement of molecules called sucrose. In a sugar crystal‚ the sucrose molecules are arranged in a pattern that extends in all three dimensions‚ and all of these molecules are attracted to each other by a type of interaction that binds molecules together called intermolecule forces. When you add granulated sugar to water‚ some of the sucrose molecules start separating from one another because they are attracted to the water molecules
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LIQUID CRYSTALS Introduction What are Liquid crystals ? Its History & Discovery Any of various liquids in which molecules are regularly arrayed like a solid crystal along one or two dimensions‚ but are free in the other dimensions as with typical liquids. Liquid crystals often display unusual and often manipulable optical properties such as anisotropic scattering. They can be divided into two classes‚ Thermo tropic(nematic‚ chiral nematic‚ and smectic.) and Lyotropic. Transitions to thermotropic
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Piezoelectric crystals are one of many small scale energy sources. Whenever piezoelectric crystals are mechanically deformed or subject to vibration they generate a small voltage‚ commonly know as piezoelectricity. This form of renewable energy is not ideally suited to an industrial situation. The ability of certain crystals to generate Piezoelectricity in response to applied mechanical stress is reversible in that piezoelectric crystals‚ when subjected to an externally applied voltage‚ can change
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How Does Liquid Crystal Display Television Works? Submitted to: Prof. Rico Bien Simon Oxales Submitted by: Manalon‚ Angelo Ocaya‚ Angelou Ortiz‚ Joel Partos‚ Mhar Angelo Ravena‚ Rosemarie How Does Liquid Crystal Display Television Works? 1. What are the Basics of Liquid Crystal Display? 2.1. Where does LCD display rely? 2.2. What is the purpose of liquid crystals? 2.3. What makes up the apparent color of each pixel on the screen? 2. What is Addressing?
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Crystal Palace Describe the exhibition come about‚ what was the reason for it‚ the understanding that the industrial revolution is permanent‚ not some strange thing thats happening to society . The description has to give us insight to why the exhibition was important and to modernism. Two Parts: Building itself- dimensions‚ what does it mean when you build with iron and glass (to form an interpretation)‚ no internal supports which creates space to exhibit. Linear thinking‚ transparency‚ pre-fabrication
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Clear Pronoun Reference A pronoun is a word that takes the place of a noun or refers back to a noun already mentioned. Common pronouns include: he‚ she‚ it‚ they‚ this‚ that‚ their‚ his‚ her‚ which. You must be very careful when using pronouns in order to be sure that your reader understands what your pronoun is referring to. (The word a pronoun refers back to is called the antecedent.) Pronouns must agree in number: 1. When the store owner greets a customer‚ she always smiles. (The noun store
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Viet Nam‚ which is developing in all areas‚ especially economics and living standard‚ Unilever has introduced Clear Men in March 2007. With the strong investment into promotion from Unilever and high quality and affordable price‚ Clear Men has become a direct competitor of X- Men which existed before and is a very strong status about cosmetic for men in Vietnam. However‚ the life cycle of Clear Men now is just in the first half of maturity‚ so it is necessary to have more strategies in all Price‚ Product
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Critical evaluation of marketing strategy of “CLEAR Shampoo” Date of submission: 6th December‚ 2013 (Section: 02) Prepared by: Niaz Morshed - 11304039 Nusrat Jahan - 10204109 MD. Elias Hossain - 11104050 Azad Mahmud Tanvir - 11104056 Anika Azhar - 10204083 Arif Ahmed - 10204060 Prepared for: Md. Tamzidul Islam Course Instructor BRAC Business School Letter of Transmittal Date: 6th December‚
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The article “The Multiple Truths about Crystal Meth among Young People Entrenched in an Urban Drug Scene: A Longitudinal Ethnographic Investigation” by Dayna Fast‚ Thomas Kerr‚ Evan Wood‚ and Will Small highlight the escalation of drug use among youth. The study goes to recognize the rapid growth of meth abuse among youth in affiliation to the social context of individuals. Like any drug there are risks of social and health-related infliction associated with meth use‚ and are often considered by
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