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WASHINGTON, Dec. 21 (Xinhua) -- NASA's Dawn spacecraft has sent around 10,000 pictures of the giant asteroid Vesta back to Earth for the first time since its launch in 2007, the U.S. space agency announced Wednesday.The images were taken from an average altitude of 209 km, the closest the spacecraft can get.From the images, scientists could see Vesta's stippled and lumpy surface in great detail, and its many small craters, grooves, and lineaments. The fine scale of the images highlights small outcrops of bright and dark material.With these new discoveries, scientists believe that studying Vesta can help decode the early history of the solar system.Dawn will maintain its low-altitude orbit for another 10 weeks before moving to a higher orbit for another round of photo-taking.Launched in 2007, the 446 million U.S. dollar project aims at studying the chemical composition of Vesta's surface and probing its interior structure.Dawn will leave Vesta in July next year and arrive at the dwarf planet Ceres in February 2015.

BEIJING, Oct. 25 (Xinhuanet) -- Steve Jobs, Apple's co-founder and former CEO, may be one of the great men who will still be influential after their deaths.The new biography of Steve Jobs is likely to be the top-selling book 2011 of Amazon.com Inc, an online book retailer, according to Amazon spokeswoman Brittany Turner Monday."It could very likely be our top-selling book of the year," Turner said in a statement cited by the Reuters.Steve Jobs, written by Walter Isaacson, former Time magazine managing editor, was landed on shelves in bookstores Monday.But its digital version was reported to be released late on Sunday on Apple's iBooks online store and Amazon's Kindle eBook store.Since its release, the biography, both electronic and physical versions, has performed very well in Amazon.It is the best-selling book on Amazon.com and the top-selling electronic book on the Kindle as well. According to the Reuters, Isaacson was asked by Jobs to consider writing a biography for Apple's former CEO in 2004, when Jobs was going to be operated on for pancreatic cancer.Then Isaacson had more than 40 exclusive interviews with Steve Jobs. The last such interview was on October 5, one week before the giant's death.

SINGAPORE, Oct. 10 (Xinhua) -- A Singapore start-up firm has devised an innovative application to allow phone users to have access to their positioning information within buildings, where traditional global positioning system has often proved inaccurate, local daily Business Times reported on Monday.The firm YFind Positioning System feels that the application can help turn Singapore into the world's first location- intelligent city.Ting See Ho, co-founder of the firm, said the application works by first verifying the GPS coordinates to identify the building the user is in, and then collecting RSSI (received signal strength information) readings off WiFi access points within the building.The information is then sent by the phone to the central positioning server for comparison against records of the radio map of the building, which is calibrated earlier by the company.Ting said the RSSI readings continually fluctuates, making it difficult to estimate a position. This is where YFind Positioning System steps in with its patent-pending probabilistic algorithms to help accurately estimated the user's indoor positions.Once the phone application determines the location, then, it is able to map a course for a shop or other destination within the building where the user wants to go."You can think of it as creating an 'indoor GPS' environment in the buildings where satellite signals cannot be read," Ting said.He said that more than ten organizations in Singapore have approached the company to discuss deployment and partnerships and that it has begun work on three proof-of-concepts.The company's immediate goal is to make Singapore the world's first location-intelligent city before going to other cities, he said.

BEIJING, Nov. 26 (Xinhua) -- In response to the government's call to build a greener economy, China's transport authorities have taken a slew of measures to promote energy saving and emission reductions in the sector.Under the sector's funding policy unveiled earlier this year, 122 emission-cutting projects in the industry have received financial support totalling 250 million yuan (39.3 million U.S. dollars). Encouraged by the special funds, another 8.06 billion yuan in investment went to the projects, according to He Jianzhong, spokesman for the Ministry of Transport (MOT).The projects were estimated to be able to save 315,000 metric tons of coal equivalent, replace 224,000 metric tons of fuel oil and reduce carbon dioxide emission by 1.14 million metric tons, He said.Meanwhile, the MOT has launched nationwide programs to promote low-carbon traffic. It has carried out 80 pilot projects on emission control and designated 10 cities as pilot areas to study and promote green transport system, including Tianjin, Shenzhen, Xiamen, Guiyang, Baoding and Wuhan.He said the ministry will continue to intensify efforts to regulate emissions in the sector to meet the industry's control target during the 12th Five-Year Plan period (2011-2015).In efforts to build a more environmental-friendly society, the government pledged that it will reduce the intensity of carbon dioxide emissions per unit of economic output in 2020 by 40 to 45 percent compared with the level of 2005.

LAS VEGAS, the United States, Jan. 12 (Xinhua) -- NVIDIA, the computer chip manufacturer best known for its high performance graphics processors, is looking to make further inroads with the automobile industry by integrating its new Tegra 3 mobile processors in upcoming vehicle models.At the 2012 International Consumer Electronics Show (CES), NVIDIA and Audi announced that all models from the German auto manufacturer in 2013 will use Tegra 3 quad-core processors to power their in-car digital systems.These processors, which are traditionally found in smartphones and tablets, will support the vehicle's digital systems at lower energy rates and also allow for shorter lead times in getting concepts to market.In addition to powering infotainment systems that allow for web browsing and Google Earth integrations, they will also give automakers the ability to replace traditional dashboards with instrument cluster systems, or digital dashboards."By leveraging technology from the very latest smartphones and tablets, Audi is leading the market with innovations that enhance safety and make driving more enjoyable," said Ricky Hudi, the company's chief executive engineer, at Audi's official conference at CES.For Audi, this means that they will be able to offer cars like the next-generation A3 model beginning in 2013, which features an integrated touchpad system and mounted monitor with the ability to render 3D imaging. Current 2012 Audi vehicles house the Tegra 2 processor."It's a natural progression with people getting so accustomed to mobile and expecting it from your automobiles as well. Partnering really closely with automotive OEMs enable us to help them realize the driver experience they're looking to deliver," said Phillip Hughes, NVIDIA's director of automotive sales and business development, in an interview with Xinhua.In addition to Audi, Tesla and Lamborghini will also be including the newest NVIDIA Tegra 3 processor in upcoming models. At this year's CES, Lamborghini is showcasing the Lamborghini Aventador, a nearly 700 horsepower vehicle with the capability of going from 0 to 60 miles per mile in less than five seconds."NVIDIA technology is enabling us to do more with our vehicles and gives our cars the ability to have the technology you'd expect from a car like this," said Kelly Snyder, an event manager with Lamborghini, to Xinhua. The retail price point for the Lamborghini Aventador starts at 382,000 U.S. dollars.More than just powering the car's digital experiences, however, integrating NVIDIA's processors will help the auto manufacturer build better cars by reducing the power to weight ratio that is a key consideration in manufacturing higher performing cars."By moving elements like the odometer to a digital dashboard platform, it reduces the power to weight ratio that is so critical to the design and manufacturing of automobiles like the Lamborghini," explained Snyder.NVIDIA also expects that the integration of these processors will bring the development cycle of the automotive industry up to speed with the consumer electronics industry through Virtual Computing Modules (VCMs) powered by the Tegra 3. These VCMs allow auto manufacturers to quickly prototype and ship consumer technology innovations to automobiles, reducing a development lifecycle that once took seven years, to roughly a year."At the end of the day, our goal is to help automotive OEMs bridge the gap between OEM and consumer technology," said Hughes.