been used because of their antimicrobial traits‚ which are due to compounds synthesized in the secondary metabolism of the plants. These products are known by their active substances‚ for example‚ the phenolic compounds which are part of the essential oils‚ as well as in tannin. The antimicrobial properties of plants have been investigated by a number of researcher worldwide‚ especially in Latin America. It was proven that from 122 known plant tested‚ a vast number of plant shown antimicrobial properties
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Topic / Oil Fence Oil Fence Abstract: An oil spill processing device is comprised of the inner layer oil fence and the outer layer oil fence form the double oil fence body wherein the inner layer oil fence is inflatable oil fence the outer layer of oil fence to adsorption type oil fence; Outer layer of oil fence is installed on the working boat dragging the roller and mop squeezing; Working boat dragging is also set on the extraction of the inner layer of oil fence in the blocking of oil and oil
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The Experiment Gloria Isham Central Texas College Twenty- six men are chosen to participate in the roles of guards and prisoners in a psychological study led by a Doctor Archaleta for which each participant is to receive $14‚000 after two weeks. Travis has just lost his part time job and is a peace protester who wants to travel to India with his girlfriend. Barris is a 42-year-old who lives alone with a domineering mother‚ who has made him join the experiment to raise money for her hip operation
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® Welding Procedure Guide An easy to follow guide covering the preparation of welding procedure data sheets © Copyright 2008 CWB Group - Industry Services ® © Copyright CWB Group - Industry Services Revised September 2008 All rights reserved. CWB Group 1-800-844-6790 www.cwbgroup.org ® TABLE OF CONTENTS 1.0 Introduction 2 2.0 Welding Engineering Standards 3 3.0 Welding Procedure Specification (WPS) 3 4.0 Welding Procedure Data Sheet
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Introduction An electrophile is a reagent attracted to electrons and accepts an electron pair in order to bond to a nucleophile. Electrophiles will attack benzene and result in hydrogen substitution. However‚ this is not thermodynamically favoured because a sp3 hybridized carbon is generated‚ which disrupts the cyclic conjugation. In order to regenerate the aromatic ring‚ a proton is lost at the sp3 hybridized carbon. Thus‚ p-Nitroaniline can be prepared by means of electrophilic aromatic substitution
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Fats and oils - 344 Iodine value of an edible oil INTRODUCTION Fats and oils known as triglycerides contain long chain hydrocarbons with carboxyl groups (COOH groups). These fatty acids are classified into the number of double bonds present in the fatty acid. When the carbon atoms in these chains are bounded to the maximum possible number of hydrogen atoms‚ the triglyceride is said to be saturated. When one or more double bonds exist between carbon atoms in the chain‚ less hydrogen exists
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Assignment 1 – Investigative Report 12/11/12 FYO-00034: Communication skills for scientists Selective report: CHE-00027 – General and Organic Chemistry Experiment 1 Determination of Empirical Formula: Preparation of a Copper Sulphide. Aim The aim of the experiment was to determine the empirical formula of sulphide of copper and to make sure that an amount of copper metal reacted with elemental sulphur‚ Eq. 1. To be able to calculate the empirical formula of copper sulphide
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PREPARATION OF TIN TETRAIODIDE 09/06/2012 Introduction The objective of this project was to prepare tin tetraiodide through the following reaction: Sn+2I2∆SnI4 and to measure the melting point of tin tetraiodide. Tin tetraiodide was recrystallized after the synthesis. The percent yield and the theoretical yield of tin tetraiodide were calculated. Recrystallization is to further improve the purity of tin tetraiodide. The solvent is carefully chosen to be toluene in order to maximize the recovery
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Experiments in physics lab report Department of Electrical Engineering Isabela State University Ilagan Campus‚ Calamagui 2nd‚ City of Ilagan‚ Isabela baccaljoemel@yahoo.com Submitted to: Engr. Rafael S. Ramos Physics12 Professor Submitted by: Joemel L. Baccal BSEE IIA Experiments in Physics Lab Report Joemel L. Baccal Department of Electrical Engineering Isabela State University - Ilagan Campus‚ Calamagui 2nd‚ City of Ilagan‚ Isabela baccaljoemel@yahoo.com Abstract In
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PREVENTION OF OIL SPILL POLLUTION IN SEAWATER USING LOCALLY AVAILABLE MATERIALS Nasser Al Hashar Dr Syed Anisuddin Tabassum Sadik Dr Sofia Tahseen Caledonian College of Engineering (A University College) 2322‚ CPO Seeb 111 SULTANATE OF OMAN anis_adil@hotmail.com A b s t r a c t Oil spill pollution‚ a severe environmental problem which persists in marine environment or in inland water across the world‚ has grown to an alarming magnitude with
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