1) What is Electro-Plating? Electroplating is the process of coating a metal object with a thin layer of another metal by means of electrolysis. 2) What is Copper Plating? Copper plating is a coating of copper metal on another material‚ often other metals. Plating is designed to increase durability‚ strength‚ or visual appeal‚ and copper plating specifically is often used to improve heat and electrical conductivity. 3) What are the uses of electro-plating/copper plating? Electroplating
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Green technology can be defined as any technology that is friendly to the environment; it may also be called clean technology. The field of "green technology" encompasses a continuously evolving group of methods and materials‚ from techniques for generating energy to non-toxic cleaning products(Green Technology 2010) Green technology can be found almost anywhere and some examples of green technology are‚ green energy‚ green building‚ green chemistry‚ and green nanotechnology. Green energy can be
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variation in concentration of Fe+2 and Fe+3 during the course of SSDML process. Analysis by ion chromatography detected 0.55 g/L of Fe+3 on 0th day because Fe+2 got chemically oxidized to Fe+3 when ferrous sulfate was added into the reactor. Microbial oxidation of Fe+2 to Fe+3 continued till day 10. Afterwards‚ Fe+3 concentration stabilized from 10th to 15th day of the SSDML process (Fig. 2a). It was observed that the increase in Fe+3 concentration resulted in the corresponding reduction in pH up to the
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According to Dr. Kravitz in his article called “The Marvelous Mitochondria” The Mitochondria was discovered in 1890 by a German cell Biologist Richard Altmann under the name of bio blasts. He first theorized that the bio blasts had metabolic and genetic self-sufficiency characteristics. Years later‚ it was given a name change by another German Biologist‚ Karl Benda‚ to the name of Mitochondria. Today‚ we know that the Mitochondria is an organelle found in most eukaryotic cells. According to David
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rushes the process and can quickly turn your car into an ugly‚ flaking‚ rusty mess. The worst issue of rust is that once the oxidation process has started it’s very hard to stop. Even taking away the source of the moisture won’t stop the metal from rusting in a self-destructive manner‚ so the only choices are to remove the rust completely or to stop the process of oxidation chemically. Either way‚ the rust must be completely removed or treated or it will return under the paint‚ causing unsightly bubbling
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Cyanobacteria’s big advantage over other early life forms was their ability to perform photosynthesis. They contain a blue photo reactive pigment that can absorb the energy from the sunlight and use it to produce nutrients for the cell. During this process‚ water molecules are broken down into oxygen and hydrogen atoms which are then released in the air. In the very early days of life‚ Earth was populated only by anaerobic bacteria that didn’t need oxygen to survive. When cyanobacteria first made
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energy storage molecules for example as fats in seeds‚ lipid deposits in the stroma of the chloroplast and adipose tissue of vertebrates. In addition oxidation of lipids yields more ATP than the oxidation of carbohydrates and therefore they are high-energy molecules‚ which are important for fruits or seeds to be dispersed. This is because just as the oxidation of glucose‚ acetylcoenzyme A is produced in the first stage‚ but so are many molecules of NAD and FAD. In lipids these are reoxidised in the electron
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other components in fruit and vegetables may reduce inflammation‚ oxidation‚ cell proliferation‚ and other processes which can cause disease. The data for the following study was taken from searches of PubMed and Medline for peer-reviewed articles published between July 1st 2006 and January 5th 2011. Phytochemicals may reduce the risk of cardiovascular disease by Reducing oxidative stress‚ scavenging free radicals and reducing LDL oxidation. Modulation of cholesterol
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the rate of microbial growth. Moulds and yeasts start to grow at aw between 0.7 and 0.8. Bacterial growth takes place when aw reached 0.8. Enzyme activity increases gradually between aw of 0.3 and 0.8 then increases rapidly from 0.8 to 1.0. Lipid oxidation rates are high in the range of aw 0 to 0.25; passing from a minimum at aw 0.3 to 0.4 and to a maximum at aw 0.8. 3. Objectives a. To observe the keeping quality of some food products b. To study the various simple methods of moisture determinations
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Module 3: Kinetics of Chemical Reactions Introduction to Kinetics Chemical thermodynamics has answered the question “can a specified chemical reaction take place?” (i.e. is the reaction thermodynamically favourable?). • However‚ chemical thermodynamics hasn‟t answered the question “HOW FAST will a specified chemical reaction occur?” o Many thermodynamically favourable reactions are so slow (ex: metamorphic transformation of rocks‚ corrosion of marble sculptures owing to weathering) that they can
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