Air pollution From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search Air pollution from World War II production Smog over Santiago‚ Chile Air pollution is the introduction of chemicals‚ particulate matter‚ or biological materials that cause harm or discomfort to humans or other living organisms‚ or damages the natural environment into the atmosphere. The atmosphere is a complex dynamic natural gaseous system that is essential to support life on planet Earth. Stratospheric ozone
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TITILE OF THE PROJECT pH SENSITIVE CHITOSAN DERIVATIVE POLYMERICS NANOPARTICLES AS DRUG CARRIER IN TARGETING COLON CANCER CELLS INTRODUCTION: Cancers area group of diseases characterized by uncontrolled growth of abnormal cells in tissues and its leading cause of death. To date‚ cancer caused 7.6 million deaths (around 13% of all deaths) around the world and this will projected to continue to rise to over 13.1 million deaths in 2030. Among this colon cancer arises when this uncontrolled cell
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I) INTRODUCTION * Industrial Chemistry deals with the preparation of products from raw materials through the agency of chemical change * Chemistry is important to Industry by: * Regulating manufacturing processes * Quality Control * Research and Development * Sources of raw materials from the natural environment 1) Lithosphere –Earth’s Crust 2) Hydrosphere – Marine and Oceanic Environment 3) Atmosphere – Air 4) Plants – Biosphere * Classification of Natural
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Gas analysis techniques Terms for gas analysis techniques Concentration The term concentration describes the amount of a substance‚ expressed as mass‚ volume‚ or number of particles in a unit volume of a solid‚ liquid‚ or gaseous substance e.g. alcohol in beer or oxygen in air. Different units are in use to describe concentration in gases: Mass concentration Concentration expressed in terms of mass of substance per unit volume [g substance/m3 gas volume] ¢ Volume concentration Concentration
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Applied Energy 87 (2010) 1158–1175 Contents lists available at ScienceDirect Applied Energy journal homepage: www.elsevier.com/locate/apenergy Energy efficient fuzzy based combined variable refrigerant volume and variable air volume air conditioning system for buildings R. Karunakaran a‚ S. Iniyan b‚*‚ Ranko Goic c a Department of Mechanical Engineering‚ Anna University Tiruchirappalli-Thirukkuvalai campus‚ India Institute for Energy Studies‚ Department of Mechanical Engineering‚ Anna
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INTRODUCTION 1 INTRODUCTION A fluid power system is one that transmits and controls energy through the use of pressurised liquid or gas. In Pneumatics‚ this power is air. This of course comes from the atmosphere and is reduced in volume by compression thus increasing its pressure. Compressed air is mainly used to do work by acting on a piston or vane. While this energy can be used in many facets of industry‚ the field of Industrial Pneumatics is considered here. The correct use of pneumatic
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The flour produced from the cassava plant‚ which on account of its low content of noncarbohydrate constituents might well be called a starch‚ is known in world trade as tapioca flour. It is used directly‚ made into a group of baked or gelatinized products or manufactured into glucose‚ dextrins and other products. Starchy foods have always been one of the staples of the human diet. They are mostly consumed in starch-bearing plants or in foods to which commercial starch or its derivatives have been
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Sains Malaysiana 41(4)(2012): 445-452 Effects of Spin Contamination on the Stability and Spin Density of Wavefunction of Graphene: Comparison between First Principle and Density Functional Methods (Kesan Pemumusan Spin Terhadap Kestabilan dan Ketumpatan Spin bagi Fungsi Gelombang Grafen pelumusan: Perbandingan antara Kaedah Prinsip Pertama dan Kaedah Kefungsian Ketumpatan) LEE SIN ANG*‚ SHUKRI SULAIMAN & MOHAMED ISMAIL MOHAMED-IBRAHIM ABSTRACT The effects of spin contamination on the
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Kinetics of the Harcourt-Essen Reaction Name: Manpreet Kaur Candidate Number: 7123 AS and A2 Aims: AS AIMS: 1. Investigate the effect of temperature on the rate of reaction. For this aim 3 sets of results will be obtained by timing how long it takes for the colour change to occur in different temperatures determined by the use of an electric water bath. With these results‚ the effect of temperature on the rate of reaction will be investigated. 2
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SUBMITTED TO: SIR ASIF IMRAN POWER & WATER MANAGEMENT AND CONSERVATION LIST OF CONTENTS PAGE NO. 1. INTRODUCTION 4 1.1. POWER MANAGEMENT AND CONSERVATION 5 1.1.1. WHY ENERGY EFFICIENCY? 5 1.1.2. HOW TO CONTRIBUTE? 6 1.1.3. HOW TO SAVE ENERGY? 6 1.1.4. RECYCLING 6 1.1.5. ENERGY USED IN THE TEXTILE INDUSTRY 6 1.1.6. IMPROVING EFFICIENCY OF ELECTRICITY USE 7 i. Lighting 7 ii. Electric motor 7 iii. Electric heating 8
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