Microwave Synthesis of 5‚10‚15‚20- Tetraphenylporphyrin Abstract: In this green chemistry experiment of 5‚10‚15‚20-tetraphenylporphyrin was synthesized from benzaldehyde and pyrrole. using microwave irradiation to heat the reactants.‚ The liquid reactants are absorbed on a solid support‚ silica gel‚ which acts as a Lewis acid catalyst to facilitate the reaction. The reaction forms a porphyrinogen‚ which is then oxidized to the porphyrin product by atmospheric oxygen. Column chromatography is performed
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contemporary acts of performance violence (Juergensmeyer‚ p 149). The term “cosmic war” according to Mark Juergensmeyer describes social images of war which‚ transcending human experience‚ evoke battles of the legendary past that relate to metaphysical‚ broader conflicts between good and evil‚ right and wrong‚ order and disorder (Juergensmeyer‚ p. 149). Perpetrators of religious violence have placed such images of cosmic war- a divine struggle- within global political battles‚ promoting religious
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February 21‚ 2011 Marketing Case- Microwave Ovens An efficient market strategy to market White Appliances in the Indian market would be to focus on marketing the foods they eat that can be easily made in a microwave oven. Indian culture is all about the fresh foods and traditional cultures. They need to find some way to incorporate the culture with the appliances. Some suggestions I have are: * Make cook books to use with the microwave oven * Market the appliance in more than just the urban
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Cell Phone Radiation Written by: Jacob Nickerson Cell phone radiation is something we as consumers are exposed to each and every day. What effect does this have on us? Can this radiation alter the cell structures and functions of our bodies? For what amount of time can our bodies be exposed to this radiation without health risks? These are all questions many scientists and researchers are trying to answer with every day that passes. Researchers are divided on a conclusion of whether or not
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word ’radiation’ has to do with energy or matter moving through space. Space radiation affects astronauts when an amount of radiation gets through the walls of a space shuttle or station and enters the body. Solar radiation usually affects astronauts walking in space‚ outside of their space shuttles‚ but sometimes it can even affect the people on Earth‚ causing electricity failures. Many people - astronauts mostly- fear the consequences of solar radiation‚ due to the fact that solar radiation can cause
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Blackbody Radiation Lab 11 Go to http://phet.colorado.edu/simulations/sims.php?sim=Blackbody_Spectrum and click on Run Now. 1) In this lab‚ you will use the Blackbody Spectrum Simulation to investigate how the spectrum of electromagnetic radiation emitted by objects is affected by the object’s temperature. In this simulation‚ you can input the temperature and observe the spectrum of the radiation emitted. a) The temperature of stars in the universe varies with the type of star and the age
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Case-Study Guidant 1.How attractive is the radiation therapy opportunity for Guidant? First we will determine the size of the market and its growth potential. Then we will assess the attractiveness of the market for radiation therapy in general using the concept of Porter’s 5 forces. Furthermore we will connect this information with Guidant’s specifics and its complementary assets to find out if this specific market is attractive for the company. Market size and growth potential The market’s
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types of radiation surrounding us. As human beings‚ we are primarily exposed to natural forms of radiation such as radon‚ cosmic (space) radiation‚ and naturally occurring radioactive elements found in the Earth. We are also exposed to man-made radiation including medical radiation. Nearly half of the radiation in which the US population is exposed to comes from medical sources such as CT scans‚ x-rays‚ and nuclear medicine. In 1899‚ Ernest Rutherford discovered that the radiation emitted by
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Research on Conduction‚ Convention‚ and Radiation Conduction is the exchange of warmth between substances that are in direct contact with one another. The better the conductor‚ the all the more quickly warmth will be exchanged. Metal is a decent conduction of warmth. Conduction happens when a substance is warmed‚ particles will acquire vitality‚ and vibrate more. These atoms then chance upon adjacent particles and exchange some of their vitality to them. This then proceeds with and passes the vitality
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Mrs. Pilar M. Macabinguil ENGLISH IV Teacher MPCHS Madam: In partial fulfillment of the requirement in ENGLISH IV‚ I hereby present to you my term paper entitled “What is Radiation?” This term paper presents a research study on the importance about radiation and how it affects the whole world. In doing a research paper is a big task that must be given more efforts‚ time and patient. It will not be built without references. I always think of doing this not for the
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