POTENTIAL USES OF RAINWATER HARVESTING IN URBAN AREAS Thamer Ahmed Mohammed‚ Megat Johari Megat Mohd. Noor‚ Abdul Halim Ghazali Department of Civil Engineering Faculty of Engineering University Putra Malaysia 43400 UPM Serdang‚ Selangor‚ Malaysia e-mail:thamer@eng.upm.edu.my Abstract Rainwater harvesting is the collection of water volume from raindrops. Rainwater harvesting has been the main source of water supply for potable and non-potable uses in the old days because the water conveyance systems
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Introduction Vibration based energy harvesting has been investigated by several researchers over the last few years and cantilever beams with piezoelectric material layers are employed in electronic circuits as piezoelectric energy harvester due to its simple configuration. With the advancement in the electronics‚ interest in piezoelectric wireless sensors has increased manifold and various researches has been conducted to optimize the harvested energy for the proper and efficient functioning of
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Acid Rains There are three gases which could cause acid rain‚ which are Sulphur Dioxide (sulphuric acid)‚ NOx (oxides of nitrogen which produce nitric acid) and also perhaps Carbon Dioxide (weak carbonic acid)‚ produces these acids because these gases dissolve in rain water/ precipitation and this forms a weak version of the acid‚ as the gases dissolve it lowers the pH of the rainwater. I think that there has been a increase in the production of acid rain‚ due to the fact that the country as a
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Tikal National Park The Tropical Rain Forest in Tikal National Park in Guatemala is alive with interesting plant life‚ animals‚ and beautiful views. The Guatemalans are adept at using the gifts the Rain Forest offers in their daily lives. Tikal National Rain Forest is found in Guatemala‚ South America. It rains for part of the day during most of the year. Rainfall averages about one hundred eight inches but can reach up to four hundred inches. The tropical climate produces hot‚ humid weather
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education has resulted in increased pressure on HR personnel to incentivize teachers. Over the last two centuries research shows varying degrees of initiation of merit pay. The 21st century has the pendulum swaying back toward the idea of finding a way to incent teachers for student achievement. Gratz ( 2005) discusses merit pay and performance pay being used synonymously and over a long period of time. The range of his study goes back to 1710 in England where children’s test scores in reading
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Acid Rain and its Chemistry Acid rain is a type of pollution that is becoming a major threat to our planet and is need of attention. Acid rain has significantly increased ever since the industrial revolution‚ and now around the world‚ countries like Russia‚ China‚ and those in Europe are facing increasing levels of acidity in their rain. Not only is it becoming more acidic but it is also spreading by the pumping of sulfuric gasses deeper into the atmosphere from of the use of taller smokestacks
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its violent plot and harsh language‚ one who understands it recognizes that these characteristics are only used to fit the time period‚ which is during the Great Depression. Undeniably‚ Of Mice and Men‚ written by John Steinbeck‚ presents literary merit and should remain in the high school curriculum. Admittedly‚ the novel shows the mistreatment of minorities; however‚ the characters that Steinbeck has created exhibit the value of friendship. Particularly‚ the main characters‚ George Milton and Lennie
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March 28‚ 2014 ACID RAIN ENVIRONMENAL EFFECTS What is acid rain? It’s a rain or any other form of precipitation that is unusually acidic‚ meaning that it possesses elevated levels of hydrogen ions (low pH). It can have harmful effects on plants‚ aquatic animals and infrastructure. Acid rain is caused by emissions of sulfur dioxide and nitrogen oxide‚ which react with the water molecules in the atmosphere to produce acids. The most obvious environmental effect of acid rain has been the loss of
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Acid rain is rain that has become acidic‚ because of air pollutants in the atmosphere. Rain has a normal pH level of around 5-5.5 which is only slightly acidic. 7 on the pH scale is the neutral and anything below that is considered acidic. Acid rain has a pH level around 4 which is 10 times more acidic. Acid rain can fall in many different ways and has many effects on the environment. Acid rain is caused by air pollutants in the atmosphere. These air pollutants are mainly from man made resources
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The Effects of Acid Rain on Plant Growth PURPOSE The purpose of this experiment was to determine to what degree acid rain affects the growth of certain plants. I became interested in this idea because I’m worried about our environmental conditions and it sounded very interesting to me. The information gained from this experiment may be used to as a warning to stop air pollution. HYPOTHESIS My hypothesis is that the plant watered with the acid solution will grow more slowly than plant’s
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