Chirality – Isolation of Limonene from Citrus Fruits Introduction: Terpenes are a large and varied class of hydrocarbons produced by a wide variety of plants. Many essential oils belong to the terpene class. They are made up of two or more five carbon units that are called isoprenes. Limonene is a terpene that can be separated from orange peels almost 100% in the (R)-(+)-limonene form. Other citrus fruits like lemons‚ grapefruits‚ limes‚ and tangerines contain the compound as well. The
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Practical 2.1- The Effect of Temperature on Membranes Objective To investigate the effect of temperature on membrane structure Introduction Beetroot Pigments Beetroots contain Betalains which are the red pigments present in the cell vacuole. Betalains are soluble in water and they contain nitrogen. Betalains extracted from beetroot is commonly used as food dye because it is not known to cause any allergic reactions. Beetroot Picture taken from http://tipdeck/how-to-cook-beet-root Structure
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Describe the relationship between manager and crew tenure and store-level performance. Estimate the actual financial impact of increased tenure. (Specifically show impact of increasing 1.38-month increase in crew tenure) Describe how important manager and crew tenure are relative to site-location factors in determining store-level financial performance. Recommend the most convenient alternative to increase employee retention: a.- Increasing wages b.- Bonus program c.- Training
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Convections Currents The main idea that I would like you to get from this set of notes is that convection currents are a swirling motion of a fluid that needs a heat source and a cold source to work. The rest of the notes will deal with supporting this idea and giving some examples of convections currents here on earth. Once the earth collects enough material it will start to get so heavy that it compresses inward toward the center of gravity a lot. This smashing of
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Tapering of Arrays By Jaydeep Trivedi (09BEC096) And Kedar Trivedi (09BEC097) 1) Introduction: The code shown below is used to show the radiation pattern due to variable no of point sources‚ variable distance of the point of interest and variable wavelength. This code also determines the locations of all the nulls due to different input fed to the sources. Mostly we will be discussing three different feeding methods: uniform feeding‚ edge feeding and binomial feeding. 1.1) uniform pattern:
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Nuclear Power Plant Persuasion Letter Dear Mayor‚ I have herd of your recent decision to build a power plant in our town I personally wanted to make sure you knew the consequences and effects of this before you made any drastic decisions. Over the past decade nuclear power has been used as a source of domestic energy and this has been increasing. But did you ever think about the heat rejection‚ gaseous emissions‚ environmental impact‚ and social impact. When it comes down to the heat rejection
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Sample Lab Report for CHM 152 Name Lab Partner(s) Abstract: The physical properties‚ including the boiling point‚ density‚ and refractive index were measured for unknown liquid #16. The infrared (IR) spectrum of the compound was also taken. Based on the data collected‚ it was determined that the compound was likely to be salicylaldehyde. Introduction The purpose of this experiment was to determine the identity of an unknown organic liquid by measuring some of its physical
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Severe Notes 4/25/13 When ML AND UL flow reach an updraft and that midlevel and upper level flow tends to be subsaturated‚ so there are 3 options with this upward rotating flow can go left right or down. Can’t go up because air tends to be denser then the updraft air. So if that air goes down it gains downward momentum. Bc that air gains downward momentum which will evap cool it will continue to gain neg buoyancy. Once at the surface you have your RFD. Large precip surrounding the updraft which
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MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Electrical Engineering and Computer Science Problem Set No. 2 6.632 Electromagnetic Wave Theory Issued: 02/15/07 R Spring Term 2007 Due: 02/22/07 R -----------------------------------------------------------------------------Reading assignment: Section 3.2 J. A. Kong‚ “Electromagnetic Wave Theory” Problem P2.1 (a) The complex permittivity for bottom round steak is about = 40(1 + i0.3) o at the operating frequency (2.5 GHz) of a microwave oven. What
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Electromagnetic waves in space See the book “Optics” by Hecht sections 3.2 and 3.3 Speed of light: EM waves travel in a vacuum with speed c = c = 299‚792‚458 ms-1 exactly They are transverse waves with (vector) E and B field orthogonal to each other‚ for this section bold indicates vector quanties. When far from the source (many wavelengths) the E and B fields are in phase The vector E x B points in the direction of motion Travelling waves can be written as E = E 0 ⋅ ei ( kx −ωt ) and B = B 0 ⋅ ei
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