Table of Contents Introduction 3 Historical events of Carbon fiber 3 Properties 4 Applications 4 Conclusion 5 Bibliography 6 Introduction There are a lot of new materials that has emerged and been used by engineers and scientists such as Aerogel‚ Metal foam‚ Bioplastic‚ Carbon fiber‚ Graphene and others. This is helping engineers build all new types of machines and instruments such as touch screen mobiles‚ automobile sensors‚ computers‚ planes and a lot more. This report will focus on a
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dose [17]. As for SGF of conducting composites based on carbon nanomaterials‚ there many works reporting different value of the factor depending on the type of filler and forming method of the composites. For example composites based on graphene aerogel and polydimethylsiloxane have SGF equal to 61.3 [18]; graphene platelets in epoxy matrix showed SGF equal to 56.7 [19]; amino-functionalized graphene nanoplates
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100 questions worth 2 marks each = total 200 marks. Penalty for wrong answer= Minus 0.67 (=1/3rd of the mark allotted to correct answer.) time limit 2 hours If you cannot solve some of these question‚ don’t get demotivated. In UPSC there will be always some question from outside of what you’ve prepared‚ but you’re not required to tick 100/100 to crack prelims. Question 1 to 20 1. Which of the following concepts can be used to study the rate of acceleration of the Universe? 1. Supernovae Explosions
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Below you’ll find a list of some ideas I’ve come up with over the course of the semester. They are all products/services that I personally haven’t seen to be for sale or available. I also append each idea with a 1-10 star rating that denotes how viable I think the idea may be in practice. 1) An idea for a plastic or silicone neckband that would sit around your neck when you jog/workout. This band would have grooves/latches at the end that would allow you to attach the wires for your earbuds so that
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colloidal system consists of two separate phases: a dispersed phase (or internal phase) and a continuous phase (or dispersion medium). A colloidal system may be solid‚ liquid‚ or gaseous. Many familiar substances are colloids‚ as shown in the chart below. As well as these naturally occurring colloids‚ modern chemical process industries utilize high shear mixing technology to create novel colloids. The dispersed-phase particles have a diameter of between approximately 5 and 200 nanometers.[2] Such
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Measuring the Absorption Coefficient for Some Common Materials Used in Functional Rooms through Standing Wave Ratio Adonis Cabigon1‚ Alaiza Tangaha2 Department of Physics‚ University of San Carlos‚ Nasipit‚ Talamban‚ Cebu City 6000 1adoniscc@yahoo.com 2mayalaiza92@yahoo.com Abstract In this paper‚ we present the measurement of the absorption coefficient α of MDF (Medium Density Fiberboard) and Fiber Cement through an improvised standing wave apparatus consist of an enclosed tube with
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CHAPTER I Introduction Over 70% of the planet is covered by water. (75% of that is salt water‚ only leaving a 25% as fresh water which can be used for consumption. 70% of the fresh water of our planet is still frozen in the icecaps of Antarctica and Greenland; while the remaining percentage is present as soil moisture‚ or it lies underground as groundwater. Main Problem How can the seawater be utilized for the consumption of different organisms? Sub problems How will the results of the said
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Is gene therapy the most effective way to treat depression? What really is depression? The term ‘depression’ can be defined in two different ways: 1. Severe despondency and dejection‚ accompanied by feelings of hopelessness and inadequacy. 2. A condition of mental disturbance‚ typically with lack of energy and difficulty in maintaining concentration or interest in life.1 Majority of people believe that depression is somewhat trivial and is not regarded as a genuine health condition‚ but
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CRITERIS D‚E‚F Nanotechnology‚ the science of the extremely tiny as commonly known (one nanometer is one-billionth of metre)‚ is an important emerging industry which is thought to reach a market of one trillion US dollars by 2015. It involves the understanding and control of atoms and molecules to create new materials with a variety of useful functions. It is the understanding and control of matter at the sphere of 1 to 100 nanometers (a sheet of paper is about 100‚000 nanometers thick). Nanotechnology
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SPEAKER DRIVER MATERIALS USED FOR MANUFACTURE DOME TWEETERS & MIDRANGE Aluminium. The majority of metal domes use aluminium diaphragms. Aluminium has an extremely high stiffness to weight ratio‚ but poor damping characteristics. Some vendors also chemically treat the metal or apply coatings to improve its damping characteristics. Titanium. Titanium is slightly heavier than aluminium for an equivalent sized dome. It is‚ however‚ much stronger than aluminium and has slightly better internal
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