Various types of Fuel Cells and their working By : Divykant Vishwakarma 03996404910 EEE 2nd shift S.No. 14 Fuel Cell A fuel cell is a device that converts the chemical energy from a fuel into electricity through a chemical reaction with oxygen or another oxidizing agent. Hydrogen is the most common fuel‚ but hydrocarbons such as natural gas and alcohols like methanol are sometimes used. Fuel cells are different from batteries in that they require a constant source of fuel and oxygen/air
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Parkinson’s disease is a long-term degenerative disorder of the certain nerve cells in the brain. that mainly affects the motor system. A high absorption of caffeine over a long period of time is strongly associated with a dramatically lower incidence and slower development of Parkinson’s disease.Parkinson’s disease related with caffeine use.more
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and similar forms of mental activity (“intelligence”). With the increase of technology more and more people rely on Google to obtain answers instead of exercising their own capacity for mental activity. What most people don’t know is the adverse affects Google is having on their intelligence. When people spend a copious amount of time on Google their intelligence is decreased. Google decreases human intelligence because spending time on Google shortens human attention spans and
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The Effect of catalase reaction on temperature Table of Contents: Bibliography ………………………………………………………………………………………………….. Page 1 Introduction……………………………………………………………………………………………………Page 2-3 Methods/ Procedures……………………………………………………………………………………..Page 4-5 Results ………………………………………………………………………………………………………….. Page 6 Analysis of Data ……………………………………………………………………………………………. Page 6 Graph …………………………………………………………………………………………………………... Page 7 Conclusion……………………………………………………………………………………………………
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Ginkgo biloba affects the cardiovascular system and the central nervous system. Elasticity of the blood vessels‚ from the largest arteries to the smallest capillaries‚ improves the circulation in the limbs and brain. Similarly‚ acetylsalicylic acid acts by reducing blood viscosity and by reducing the risk of blood clots. It also has antioxidant properties. It removes free radicals and protects healthy blood cells. Some researchers claim that it supports the nervous system. increasing the supply of
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to thrive. Child abuse has the greatest impact on brain development in children. If hindered due to abuse or neglect‚ the brain can be altered and drastically affect the child’s adulthood. The human brain is a complex structure. From the first months of life the fetus creates neurons or specific cells that solely form the brain. These cells specialize
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The young people of today are constantly using what some people call “technological advancements‚” such as cell phones‚ X-Boxes‚ laptops‚ or iPods. But are these advancements a good thing? I think that the growth of technology has a negative influence on the social lives of today people‚ because it keeps people from experiencing reality and perpetuates the concept of immediate satisfaction. Technology is a negative influence on us because it separates us from reality. When you put on your headphones
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relatives. Drug abuse creates risks. When a person is under the influence of drugs‚ he or she act violent towards their family members and sometimes get to the point where physical violence gets involved and even death. Not only does it risk a relative’s life but it could also affect the life in which the family lives in. Most income that comes in goes to drugs and an addict would use it all and have nothing left over to care for his or her family. Bills would be unpaid; food would not be served in the
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Can tegu lizards maintain an elevated body temperature during their reproductive season? Experiment: Dr. Glenn Tattersall and a team of researchers in Rio Claro‚ Brazil studied changes in the heart rate and body temperature of tegu lizards (Salvator merianae)‚ by implanting lizards bred in captivity with specialized electronic chips. One group of lizard lived in an entirely outdoor environment for one year. Three other groups that were subjected to alternating indoor and outdoor environments over
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Peroxidase Enzyme & Temperature Abstract: In this lab we tested the effect temperature has on the rate of enzyme activity. The way we figured this out was by taking four different temperatures and testing the different absorbance levels they produced every 20 seconds for two minutes straight using a spectrophotometer. The important part of this experiment was the temperature the enzyme concentration was made at. What we got from the experiment was at lower temperature we got very low numbers
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