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已读[80] 发布: 2013/05/10 19:49:06
WSFA According to the American Lung Association's State of the Air 2013, more than 4 in 10 reside in counties with unhealthy levels of either ozone (smog) or particle pollution (soot) — the most common air pollutants that can cause asthma attacks, heart ... and more »
已读[81] 发布: 2013/05/10 19:23:01
The Guardian Francium is a naturally occurring radioactive decay product that pops up in thorium and uranium ores before it decays into either astatine, radium, or radon. Francium has 34 known isotopes, all of which are radioactive with very short half-lives: the ...
已读[104] 发布: 2013/05/09 20:35:38
TIME They first came to the attention of European settlers in the early 18th century, and native Canadians in the region had been using the sticky, bituminous sands for centuries — not to burn for energy but to caulk their canoes. True to the name “oil ... and more »
已读[74] 发布: 2013/05/09 19:56:05
Platts Under the current PSC model for shallow water blocks, state-owned Bangladesh Petroleum Exploration and Production, or Bapex, will take a 10% carried interest stake. The gas price is pegged to high sulfur fuel oil prices, with the floor price fixed at ... and more »
已读[70] 发布: 2013/05/09 19:56:02
St. Helens Chronicle A general rule says that if insects are found in bunches on the undersides of leaves or on succulent new growth, they are probably aphids. Whiteflies are the one exception and they don't usually show up until it is warmer. Aphids are sucking ... But on ...
已读[76] 发布: 2013/05/09 19:55:58
PR Newswire (press release) Net income for the first quarter of 2013 was $54.2 million, or $0.86 per share, compared to net loss of $(29.4) million, or $(0.52) per share, for the same period last year. Excluding special items, Alon recorded net income of $54.2 million, or $0.86 ... and more »
已读[108] 发布: 2013/05/09 19:39:39
Sacramento Bee Deposit control additives will grow at a below average rate, despite benefiting from strict requirements for engine cleanliness present in the upcoming ...
已读[200] 发布: 2013/05/09 16:07:09
environmentalresearchweb A more recent method known as "colloidal synthesis" – preparing the crystals as a suspension or "colloid" in a liquid by heating the ingredients in a large flask – reduced preparation time to 45 to 90 minutes. Sarswat decided to try microwave ...
已读[76] 发布: 2013/05/08 20:05:54
Sacramento Bee A telephonic replay of the conference call will be available through May 23, 2013, and may be accessed by calling 800-406-7325, or 303-590-3030, for international callers, and using the passcode 4614673#. The archived webcast will also be available at ... and more »
已读[78] 发布: 2013/05/08 20:05:49
Bloomberg Low- sulfur diesel in the region was unchanged at 4.5 cents a gallon above Nymex ultra-low- sulfur diesel futures. Supplies of motor fuel on the West Coast, known as the PADD 5 region, dropped 112,000 barrels to ... 1990, when the EIA began tracking ... and more »
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