Polysaccharides: From Waste Products to Smart Materials Dr. Caroline L. Schauer Polysaccharides are simply carbohydrates formed by combination or chain of monosaccharides and are a very common organic compound found in nature. We are exposed to them various times a day and they make up an important part of our Earth. Some common polysaccharides are: cellulose‚ chitin (in seafood)‚ starch‚ alginate‚ hydroaluronic acid‚ chondritin sulfate‚ glycogen‚ xylan‚ pectin‚ and various others. Polysaccharides
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to have an ever-increasing need for more energy. Both households and industries require large amounts of power. At the same time our means of production face new problems. International treaties aim to limit the levels of pollution‚ global warming prompts action to reduce the output of carbon dioxide and several countries have decided to decommission old nuclear power plants and not build new ones. Such development brings about the need to replace old energy production methods with new ones. While
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Flywheel energy storage works by accelerating a rotor (flywheel) to a very high speed and maintaining the energy in the system as rotational energy. The energy is converted back by slowing down the flywheel.Flywheel energy storage system is one form of energy storage devices. It is basically a rechargeable battery. It is used to absorb electric energy from a source‚ store it as kinetic energy of rotation‚ and then deliver it to a load at the appropriate time‚ in the form that meets the load needs
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Polysaccharide Biotechnology essay “It has been claimed that polysaccharides are relatively simple substances without much variety in terms of their structure and their application in an industrial or medical contact.” Write an essay giving a reasoned treatise why you do or do not agree with this statement. In your answer‚ compare and contrast the structure‚ costs of production‚ possibility for chemical/enzymatic modification and the industrial applications of two structural polysaccharides (such
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GASEOUS DISCHARGE LAMPS: A gaseous discharge lamp is essentially a glass or quartz envelop containing two electrodes and a small quantity of gas or vapour at a low pressure. In these lamps light is obtained by applying an electric potential difference to a gas or vapour contained by the lamp under a suitable pressure. Due to application of electric potential difference gas gets ionised and an electric current flows; the tube is filled with a luminous discharge. The light spectrum
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Major Sources of Energy: Their Advantages and Disadvantages There is no easy answer to what is the best source of energy or electricity. Is the priority reliability‚ affordability‚ the economy‚ international human rights‚ limiting greenhouse gas emissions‚ preserving environmental resources‚ or human health? It’s undeniable that today — whether we like it or not — humans worldwide are overwhelmingly dependent onfossil fuels: coal‚ oil‚ and natural gas. Everything eaten‚ worn
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QUESTIONS 1. What are other sources of glycogen? Of starch? a. Other sources of glycogen- Aside from the liver‚ it can also be found in skeletal muscles (for energy during strenuous exercise). It also occurs in tissues including adipose tissues‚ heart muscles‚ kidneys and the brain. It is also found in yeast‚ bacteria‚ fungi‚ molds and algae‚ oysters‚ and shellfish. b. Other sources of starch- Foods that are high in starch include breads‚ grains‚ cereals‚ pasta‚ rice‚ potatoes‚ peas
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Human uses of energy over 10‚000 years are explained in Changing Environments (Morris et al‚ 2003a). Until 10‚000 years ago humans lived as hunter gatherers in small groups‚ this changed in the current interglacial stage or Holocene with the introduction of agriculture. Figure 2.19 page 82 of (Morris et al‚ 2003b) indicates that during the early agriculturalist period humans had begun to domesticate animals that could be used for carrying and pulling. Energy use increased from 0.24 W (calculations
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Summary of Carbohydrates: Monosaccharides‚ Disaccharides‚ Polysaccharides Carbohydrates are molecules that are synthesized from carbon‚ oxygen‚ and hydrogen atoms. Some types of carbohydrates consist of a single unit consisting of a few atoms‚ while other carbohydrates consists of thousands of units linked together through chemical bonds. Glucose‚ maltose‚ and glycogen are three carbohydrates that are similar‚ but structurally different. Carbohydrates have the general molecular formula CH2O. Starch
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Energy Education Science and Technology Part A: Energy Science and Research 2012 Volume (issues) 29(2): 913-946 Passive cooling methods for energy efficient buildings with and without thermal energy storage – A review N. B. Geetha‚ R. Velraj* Anna University‚ Institute for Energy Studies‚ College of Engineering‚ Chennai‚ India. Contents 1. Introduction ……………………………………………………………………..914-915 2. Solar and heat protection techniques (Reduce heat gains)……………………...915-919 2.1. Microclimate………………………………………………………………
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