Post Lab #4- Column Chromatography Organic Chem 3418-2 March 3‚ 2011 Theoretical Background- The fluorene and fluorenone mixture was separated by first dissolving the mixture in heptane. Since “like dissolves like”‚ fluorene dissolves with the non-polar heptane and the polar fluorenone dissolves in the polar ethyl acetate solvent. This phenomenon was illustrated in class before the experiment‚ when it was pointed out why water will not dissolve fluorene‚ fluorenone‚ or transstilbene
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18th European Symposium on Computer Aided Process Engineering – ESCAPE 18 Bertrand Braunschweig and Xavier Joulia (Editors) © 2008 Elsevier B.V./Ltd. All rights reserved. Optimization of Preventive Maintenance Scheduling in Processing Plants DuyQuang Nguyen and Miguel Bagajewicz The University of Oklahoma‚ R. T-335 SEC‚ 100 E. Boyd‚ Norman‚ OK 73019‚ USA Abstract A new methodology designed to optimize both the planning of preventive maintenance and the amount of resources needed to perform
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A theoretical approach to supply chain optimization through solution of an LP-problem 1. Key Questions • What are the number of mfg nodes‚ distr. nodes‚ cust. nodes and inventory nodes? [M‚ D‚ I] = N‚ locations [x] Where is demand located per manufacturing type / platform? [c] What are the reliability / infrastructure factors associated between each node? [r] What are the cost factors associated with each possible country & distribution node? [cc‚ dc] What is the overall flexibility from the
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Flow of Report * Discuss Supermarket * Questions (As we go along with the discussion‚ we are going to find the answers to these questions) * Discuss Supermarket Layout and Effects of Marketing * Market perspective (We have two points of view or perspective here‚ that is Supermarkets’ perspective and Consumer’s perspective but we will be more focus in Supermarkets’ perspective since we are IE students and later on some of us will be in line in Supermarkets’ industry. So markets are
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Topic: IFRS and US GAAP in the Oil and Natural Gas Industry Summer 2013 July 17‚ 2013 Introduction Many countries in the world speaks many different languages when it comes to financial reporting. When one compare the accounting standards years ago to what is seen today‚ it’s shown that investors tolerated a great deal. As the markets are becoming global‚ investors are choosing the better global accounting standards that are available to them. For this reason‚ this paper will point out the International
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cannot be prepaid until the year 5. Following a base case scenario where the company required return is 13% and long term growth rate of 3%‚ the derived EV of Accuflow is $325 Million (Appendix 2). This scenario however‚ assumes that no new debt is issued while retiring the mezzanine in 2003. A sensitivity analysis performed around the required return and long term growth rate of the company values the EV from $218 to $488 Million‚ although the higher range numbers are unlikely given the market. Hence
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Enron Corporation was one of the largest integrated natural gas and electricity companies in the world. It marketed natural gas liquids worldwide and operated one of the largest natural gas transmission systems in the world‚ totaling more than 36‚000 miles. It was also one of the largest independent developers and producers of electricity in the world‚ serving both industrial and emerging markets. Timeline Enron began as Northern Natural Gas Company‚ organized in Omaha‚ Nebraska‚ in 1930. The company’s
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Solubility as a Property of Matter A Lab of Chemicals‚ Chromatography‚ and Crime! Chemistry is a natural science that deals with the composition of matter and the changes it undergoes. At crime scenes‚ investigators often find unknown materials that need to be identified. If an unknown material is a mixture‚ an investigator may want to know one or two things about it: What are the ingredients of the mixture? Is the mixture found at the scene the same as a known mixture? A mixture is a collection
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Unversity Visca‚ Babay City‚ Leyte Name: Millama‚ Engene O. Course & Year: BS Biotech-2 Lab Schedule: W (1-4) Group 5 Date Performed: Dec. 12‚ 2012 Date Submitted: Jan. 9‚ 2013 Separation of Photosynthetic Pigment by Paper Chromatography I. INTRODUCTION There are different types of components in plant pigments. The most important and abundant chemical pigment found in plants is chlorophyll. This pigment exists in two forms; chlorophyll a and chlorophyll b. Chlorophyll a‚ being
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Resting metabolic rate can vary with age independently from body mass changes in the Colorado potato beetle‚ Leptinotarsa decemlineata. Abstract A study was done by Saija Pironine‚ leena Lindstrom‚ and Anne Lyytinen in the Journal of Insect Physiology‚ to investigate the age dependence of resting metabolic rate in Colorado potato beetle (Leptinotarsadecemlineata) from adult emergence until age 10 days. In their hypothesis they expected to see a bell shaped pattern in metabolic rate with adult age
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