1 Introduction 1.1 DEFINING POLYMERS Polymers are materials of very high molecular weight that are found to have multifarious applications in our modern society. They usually consist of several structural units bound together by covalent bonds [1‚2]. For example‚ polyethylene is a long-chain polymer and is represented by ÀCH2 CH2 CH2 À or ½ÀCH2 CH2 Àn ð1:1:1Þ where the structural (or repeat) unit is ÀCH2ÀCH2À and n represents the chain length of the polymer. Polymers are
Premium Polymer
GE90-115B University of Central Missouri GE90-115B People say that there is no such thing as magic‚ and they are correct. That is why the credit for manned flight goes to science. However‚ one starts to wonder whenever someone finds that a single engine is able to keep a Boeing 747 aloft for over four hours. With the rate that technology has advanced in the prior 100 years‚ the possibilities for development of new aircraft powerplants are unlimited. One of the most recent
Premium Gas turbine Gas compressor
zVisit Piping Design Central: http://www.pipingdesign.com PIPING DESIGN QUESTIONAIRE Authors: Kumar Rudra‚ Rakesh Patil and Joshua Thinakaran Oil and Gas Special Projects - L&T‚ Mumbai - India Copyright 2002. All Rights reserved Simple 1. What is the ASME code followed for design of piping systems in Process pipings (Refineries & Chemical Industries)? (i) B31.1 (ii) B31.3 (iii) B31.5 (iv) B31.9 Answer (III) 2. What do you mean by following items? i.)ISLB-400 ii) ISMB-600 iii) ISHB-350 iv)
Premium Rockwell scale Pressure Hardness
GUIDELINES FOR ENVIRONMENTALLY SOUND MANAGEMENT OF E-WASTE (As approved vide MoEF letter No. 23-23/2007-HSMD dt. March 12‚ 2008) MINISTRY OF ENVIRONMENT & FORESTS CENTRAL POLLUTION CONTROL BOARD Delhi MARCH‚ 2008 TABLE OF CONTENTS EXECUTIVE SUMMARY Chapter 1 INTRODUCTION 1.0 Preamble 01 1.1 E-Waste 01 1.2 Environmentally Sound Management of E-waste 01 Chapter 2 OBJECTIVE & SCOPE OF THE GUIDELINES 2.1 Objective 02 2.2 Scope 02
Premium Hazardous waste Waste Waste management
Hamdard University [pic] Hamdard institute of education and social sciences Course title EMERGING ISSUES IN EDUCation Assignment title Human Rights ---- Children rights prepared by madiha abbas INTRODUCTION "Maybe we’re all born knowing we have rights - we just need to be reminded” --- Romanian HRE trainer Human Rights can be defined as those basic standards without which people cannot live in dignity as human beings. Human rights are the foundation of freedom‚ justice and peace. Their
Premium Human rights
BUILDING DEFECTS PART 1 • Identify common building defects • Identify the source • Provide pictures‚ diagrams and sketches • Suggest remedial action • Show details that would have avoided the defect PART 2 Generate a scheme for planned maintenance and provide a building checklist to ensure all necessary maintenance is carried out on a regular basis. INTRODUCTION In this project we will be looking at many different kinds of building defects that would be commonly seen in the construction
Premium Acoustics Magnesium
ACKNOWLEDGEMENT It gives us great pleasure when a certain task is accomplished with great zeal and enthusiasm. We would like to extend our heartfelt thanks and deep sense of gratitude to all those who helped us in completing this project. First and foremost‚ we feel greatly indebted to Mr. D. M. SINGH and Mr. UBAID AHMAD KHAN‚ from the core of our heart for their constant support and valuable guidance time to time‚ because they encouraged and
Premium Resistor Magnetic field
J Polym Environ (2007) 15:25–33 DOI 10.1007/s10924-006-0042-3 ORIGINAL PAPER Chemical Treatments of Natural Fiber for Use in Natural Fiber-Reinforced Composites: A Review Xue Li Æ Lope G. Tabil Æ Satyanarayan Panigrahi Published online: 4 January 2007 Ó Springer Science+Business Media‚ LLC 2006 Abstract Studies on the use of natural fibers as replacement to man-made fiber in fiber-reinforced composites have increased and opened up further industrial possibilities. Natural fibers have
Premium Functional group Tensile strength Acetic acid
DIRECTIONAL PATCH ANTENNA ARRAY DESIGN FOR DESKTOP WIRELESS INTERNET by Noah Snyder Senior Project ELECTRICAL ENGINEERING DEPARTMENT California Polytechnic State University San Luis Obispo 2010 2 Table of Contents List of Figures ................................................................................................................................................ 3 List of Tables .............................................................................................
Premium Antenna Microstrip
Top 7 trends in high tech industry® ® White Paper Top 7 Trends Transforming the High Tech Industry Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Top 7 Trends Transforming the High Tech Industry . . . . . . . . . . . . . . . . .
Premium Supply chain management