Hans Journal of Data Mining 数据挖掘, 2013, 3, 1-5 doi:10.12677/hjdm.2013.31001 Published Online January 2013 (http://www.hanspub.org/journal/hjdm.html) City Atmospheric Quality Optimal Assessment Based on Combined Model* Li Xiao, Xianghong Hu, Guoquan Zhang College of Science, South China Agricultural University, Guangzhou Email: scauxl@tom.com Received: Oct. 9th, 2012; revised: Oct. 30th, 2012; accepted: Nov. 7th, 2012 Abstract: This paper puts forward a new atmospheric quality assessment method
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in today’s world is the environment. There is dispute over what we should do about it. One issue in the environment is global warming. Global warming has become a problem around the world; it is caused by CO2 emissions and other gases in the atmosphere that cause the sun’s thermal energy to be absorbed, otherwise known as the greenhouse effect. Studies have shown that at least 20% of ice on Earth has melted since 1979. Although it may not sound so bad, every year we deplete the natural ice on
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• The development of a cheap source of energy that was virtually unlimited, yet small enough to fit in a pocket We already have the beginnings of this technology in our world today. A battery the size of a cellphone battery but the thickness of a Styrofoam plate has been developed by an inventor here in the US recently. If coupled with some form of pocket clip solar collector it would be limited to voltage and wattage for small electronics only but virtually unlimited as far as replenishable usable
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Is global warming a myth or is it reality? According to www.greenpeace.org/usa our world is hotter today than it has been in two thousand years. By relying on oil, coal and gas for our daily needs we are releasing carbon dioxide into the atmosphere. When the gasses are released into the air the earth begins to heat, similar to a car on a hot day. When the earth heats up, the ice caps melt, water levels rise killing off plants, animals lose the food from the plants dying, and humans lose
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her and ate all of the rice cake. However, the tiger was still hungry and therefore he decided to go children to eat them. When tiger arrived the house where the two children lived, he pretend with mother to open the door, children felt strange atmosphere, therefore children check out the mother’s hand. It had fur! Mother did not have fur, so children run away out of home and pray to god at top of tree. As soon as, the rope came down from the sky, they jumped to rope very quickly and going up to
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solar power because that would promise a better recovery for America and also grant us more jobs. For example talking about solar energy, I have seen a movie where its in the future and how it would look. I don’t think I could adapt to that type of atmosphere because people aren’t allowed to go outside because of the hot temperatures. This is likely to happen if we continue to damage the ozone layer and continue damaging the earths surface that protects us. As we can se and heard in news, its getting
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earth is slowly getting hotter. Most scientists believe that this is due to the fact we have been polluting the atmosphere with damaging gases such as carbon dioxide, sulphur and methane. These gases have been building up in our atmosphere. When the sun shines on the earth its rays normally hit our planet and reflect back into space, however the gases we have polluted into our atmosphere often reflect the rays of light back onto the planet – thus heating it. If the world temperature rose by a mere
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Undoubtedly, the gulf stream is the biggest stream in the world which is calculated around 80-100 km wide and 800-1200 meters in depth and travels with a maximum speed of 2 meters per second. In the gulf stream region, heating of the lower part of the atmosphere is very strong. The gulf stream transports the warm water waves near the surface which encourage water to evaporate and make the water salty. This is the reason that winds carry warmth and plentiful rainfalls to Europe. There is a water cycle that
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The “Year Without a Summer” was a time in the year 1816 when people struggled to survive severe climate abnormalities. Climate back then changed dramatically as global temperatures decreased by about 0.4-0.7° C. In addition, huge amounts of food were wiped out across the Northern Hemisphere. Scientists believe that below average solar activity and volcanic winter events were the cause. The strange climate activity had the greatest effect on the northeastern United States, Atlantic Canada, and oarts
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Progress I'm a work in progress; you could even say we all are works in progress. As there are different kinds and types of animals, there are also different kinds and types of us human beings. A lot of things have changed on our planet Earth since God created it, and we, the mankind, are for certain not an exclusion. Many are even of the opinion, that we are the beings who have changed the most, and to tell the truth, I would not disagree to it. In Denmark, we have gone from being hunters and
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