太原为什么便血(太原屁眼痛拉血怎么回事) (今日更新中)

LOS ANGELES, April 8 (Xinhua) -- NASA's Wide-field Infrared Survey Explorer (WISE) has discovered a rare asteroid that traces out a horseshoe shape relative to Earth, the Jet Propulsion Laboratory (JPL) said on Friday.Unlike most near-Earth asteroids (NEAs) that have eccentric, or egg-shaped, orbits that take the asteroids right through the inner solar system, the new object has an orbit that is almost circular such that it cannot come close to any other planet in the solar system except Earth, JPL said.However, even though the asteroid rides around with Earth, it never gets that close, said JPL in Pasadena, Los Angeles.As the asteroid approaches Earth, the planet's gravity causes the object to shift back into a larger orbit that takes longer to go around the sun than Earth. Alternately, as Earth catches up with the asteroid, the planet's gravity causes it to fall into a closer orbit that takes less time to go around the sun than Earth, according to JPL.The asteroid therefore never completely passes our planet. This slingshot-like effect results in a horseshoe-shaped path as seen from Earth, in which the new object, designated 2010 SO16, takes 175 years to get from one end of the horseshoe to the other, JPL said."The origins of this object could prove to be very interesting, " said Amy Mainzer of JPL, the principal investigator of NEOWISE, which is the asteroid- and comet-hunting portion of the WISE survey mission. "We are really excited that the astronomy community is already finding treasures in the NEOWISE data that have been released so far."JPL manages and operates the WISE for NASA's Science Mission Directorate, Washington.

BEIJING, Jan. 28 (Xinhua) -- China will further its efforts to harness the Huaihe River over the next five to 10 years in a bid to support the economic development of the regions along the river.The decision was announced Friday in a statement released after an executive meeting of the State Council, China's Cabinet, which was presided over by Premier Wen Jiabao.The work will include upgrading dams and water gates in flood diversion programs and building more irrigation and water conservancy projects in low-lying lands along the Huaihe River, said the statement.Further, efforts will be made to guard against water pollution and help urban and rural residents in the Huaihe River regions have sufficient access to clean water, it said.Also, more flood control reservoirs will be constructed, while more residents will be relocated from flood diversion areas as well as flood land.The cabinet urged government departments to earmark more funds and enhance management and cooperation in implementing these measures.The 1,000-kilometer Huaihe River, the third longest water way in China, originates from Mount. Taibai, central Henan Province, and runs eastward between the Yangtze River and the Yellow River, the two largest rivers in the country. It cuts through Henan and east China's Anhui and Jiangsu provinces before entering the Yangtze River via the Hongze Lake.The flood-prone river has a drainage area of about 180,000 square kilometers.

SAN FRANCISCO, April 4 (Xinhua) -- Web exploit toolkits, or " packaged" attack frameworks that can be traded online, are rapidly growing as the top cybercrime weapon due to ease of use and high success rate, a new report has found."When it comes to conducting online crime, exploit toolkits are the weapon of choice for many cyber criminals," said the "2010 Top Cyber Security Risks Report" published by Hewlett-Packard Co. (HP) on Monday.The trend started in 2006 with the release of WebAttacker, considered by many to be the first modern day web exploit toolkit, according to the report.An emerging trend ensued and soon took off, and today the Internet is subjected to hundreds of exploits originating from these toolkits."With the ever-increasing, web-based criminal activity, the number of exploit toolkits has skyrocketed and shows no signs of slowing down," the report stated.Though protecting against attacks originated with web exploit toolkits is becoming increasingly difficult, there are ways to minimize the risk of infection, said the report, noting that one of the most effective defenses is to install patches onto host systems.The report also found that while the number of attacks against known vulnerabilities continues to rise, the number of discovered vulnerabilities has plateaued in 2010."We've discovered that rather than investing resources to uncover new exploits, attackers are focused on current, unpatched vulnerabilities in web applications, social networking sites and Web 2.0 interfaces," Mike Dausin, a manager at HP Digital Vaccine Labs, said in a statement.Data from the report showed that nearly half of all reported vulnerabilities exist in web applications, and third-party plug- ins to content management systems have become the leading cause of web application vulnerabilities.

BEIJING, May 21 (Xinhua) -- China may see increased planting acre of early rice this year, though drought has not been relieved in some areas, said a statement on the website of the Ministry of Agriculture on Saturday.China is expected to plant 88.5 million Mu (5.87 million hectares) of early rice this year, about 1.6 million Mu more than the previous year, thanks to soaring rice prices and policy incentives, the statement said.However, drought continues in Hubei Province, Poyang Lake areas in Jiangxi Province, Dongting Lake areas in Hunan Province and Leizhou Peninsular in Guangdong Province, the statement said.The drought has affected about 3 million Mu of paddies in Hubei in the middle reaches of the Yangtze River, the statement said.The statement urged local agricultural departments to help facilitate paddy management, as strong rains were forecast for southern China from Friday to next Tuesday.The middle and lower reaches of the Yangtze River received about 40 to 60 percent less rain this year than in previous years -- this year being the least amount of rain in the past 50 years, said the State Flood Control and Drought Relief Headquarters.

LOS ANGELES, April 8 (Xinhua) -- NASA's Wide-field Infrared Survey Explorer (WISE) has discovered a rare asteroid that traces out a horseshoe shape relative to Earth, the Jet Propulsion Laboratory (JPL) said on Friday.Unlike most near-Earth asteroids (NEAs) that have eccentric, or egg-shaped, orbits that take the asteroids right through the inner solar system, the new object has an orbit that is almost circular such that it cannot come close to any other planet in the solar system except Earth, JPL said.However, even though the asteroid rides around with Earth, it never gets that close, said JPL in Pasadena, Los Angeles.As the asteroid approaches Earth, the planet's gravity causes the object to shift back into a larger orbit that takes longer to go around the sun than Earth. Alternately, as Earth catches up with the asteroid, the planet's gravity causes it to fall into a closer orbit that takes less time to go around the sun than Earth, according to JPL.The asteroid therefore never completely passes our planet. This slingshot-like effect results in a horseshoe-shaped path as seen from Earth, in which the new object, designated 2010 SO16, takes 175 years to get from one end of the horseshoe to the other, JPL said."The origins of this object could prove to be very interesting, " said Amy Mainzer of JPL, the principal investigator of NEOWISE, which is the asteroid- and comet-hunting portion of the WISE survey mission. "We are really excited that the astronomy community is already finding treasures in the NEOWISE data that have been released so far."JPL manages and operates the WISE for NASA's Science Mission Directorate, Washington.

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