--- Experiment 1 : Thin-layer Chromatogragaphy : Analysis of Drug Components CHEM221 Date experiment performed : January 20‚ 2014Date Submitted : January 27‚ 2014 Introduction This laboratory has its first objective to familiarize with the thin layer chromatography (TLC) technique. Second‚ each student has to identify the unknown components by comparing it to one of the tree dissolved liquid analgesics: Acetaminophen‚ Aspirin and Caffeine. Finally‚ calculating the Rf value by measuring
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Checkpoint: OSI Model Paul Tegner IT/242 April 22‚ 2011 Mark Burke OSI Model The OSI Model consists of seven layers. These layers are the application layer‚ presentation layer‚ session layer‚ transport layer‚ network layer‚ data link layer‚ and physical layer. The Application Layer The application layer is responsible for interaction between the operating system and the network services and provides an interface to the system. It provides the user interface to a range
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CENTER FOR INFORMATION SYSTEMS RESEARCH Sloan School of Management Massachusetts Institute of Technology Cambridge Massachusetts 7-ELEVEN Japan Co.‚ Ltd.: Reinventing the Retail Business Model Kei Nagayama and Peter Weill January 2004 CISR WP No. 338 and MIT Sloan WP No. 4485-04 2004 Massachusetts Institute of Technology. All rights reserved. Research Article: a completed research article drawing on one or more CISR research projects that presents management frameworks‚ findings and recommendations
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Archimedean screw‚ Archimedes principle‚ Archimedean spiral‚ Archimedes claw‚ planetarium‚ compound pulley system and many war machines. His greatest contributions were in geometry and his methods and ideas started the idea of calculus and finding the density of an object without damaging the object. Archimedes was asked by a king‚ one day to find out if his crown was made out of pure gold without damaging it. Before Archimedes came up with the concept of the Archimedes principle‚ the only way to find
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Internal Assessment Coversheet and Self-Assessment Session: Student Name: SL/HL Candidate Number: Investigation title: Investigating a factor that affects stomata density in leaves Syllabus topic(s): Teacher’s Instructions and help given: Candidate declaration: “I confirm that this work is my own work and is the final version. I have acknowledged each use of the words or ideas of another person‚ whether written‚ oral or visual.” Signed: Escalante Date: 15/09/14
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Jaslyn Low Foon Siang CFD Assignment: Laminar Boundary Layer Form a group of 4-5 students to run a CFD simulation in laminar flow to answer the following questions. You can use any geometry with proper dimensions and make necessary assumptions in this simulation. Questions a) Show the developing and developed flow patterns. b) Show the inviscid and laminar flow patterns. c) Show the growth of the boundary layers. d) Compare the boundary layer thicknesses with Blasius solution. e) Show the centerline
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Determination of Length‚ Mass‚ and Density Table of Contents 1 – Introduction ……………………………………………........…. Page 3 2 – Theory ………………………………………………………...... Page 3 3 – Experimental Procedure and Results …...………………..…. Page 6 4 – Discussion ………………….……………………….....….…… Page 9 5 – Conclusion ………………………………………….....…….... Page 9 6 – Bibliography …………………………………………......… Page 10 1- Introduction The purpose of this experiment is to learn how use a variety of tools that will aid in the gathering
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Identification renal stone size and density with computed radiography and computed tomography respectively to determine its fragility by ESWL Dr.Haider Qasim Hamood MBChB; DMRD; FIBMS (Radio-Diagnosis) Abstract: Background: Renal stone is one of the most common causes of acute abdomen. There are many types of renal stones depending on stone chemical components those including calcium oxalate stone‚ struvite stone‚ uric acid stone and cystine stone. Spiral computed tomography (CT) and computed
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The federal court system is made up of 3 layers: the district courts‚ the circuit courts. These are the first layer of appeal. The final layer is appeal in the federal courts. There are 94 district courts‚ 13 circuit courts‚ and one Supreme Court throughout the country. The Supreme Court is the only court specifically mentioned in the Constitution; Article III mentions the Supreme Court. District courts were created by acts of congress. All the judges and justices are picked by the president
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Task 3: How could Thin Layer Chromatography (TLC) have been used to prepare a pure sample of aspirin? The method of using thin layer chromatography is easy‚ quick and relatively cheap to carry out this makes it ideal for preparing pure samples of aspirin. Equipment Required: • Thin Layer Chromatography Paper • Ruler • Pencil • Solvent • Beaker • Micro Capillary • Access to a fume cupboard • UV light • Clingfilm • Individuals sample of aspirin • Pure sample of aspirin • Sample of salicylic acid Method:
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