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| 1 | Theoretical Calculation Model of Heat Transfer for Deep-derived Supercritical Fluids with a Case Study显示文摘Based on a set of equations established by Duan et al. (1992, 1996) for a geofluid system H2O-CO2-CH4(-N2), a formula is obtained to calculate the heat changes. Combining the geological T-P conditions (geothermal gradients and lithostatic and hydrostatic pressures), the enthalpy of some typical geofluids is figured out. Then the principles of heat transfer of deep-derived supercritical fluids are discussed. The result shows that deep-derived geofluids can bring a large amount of thermal heat and release most heat to the shallow surroundings as they move up, because the molar enthalpies vary very greatly from the deep to shallow, increasing with the increases of T and P. Generally, more than tens of kilojoules heat per molar can be released. Furthermore, the molar enthalpy is affected by the compositions of the geofluids, and the molar enthalpy of CO2, CH4, or N2 is greater than that of H2O, being twice, more than twice, and about 140% of H2O, respectively.Finally, a case study is conducted by investigating a source rock sequence affected hydrothermally by magmatic fluids in the Huimin depression of Shengli Oilfield. The thermal heat calculated theoretically of the fluids related to a diabase intrusion is quite large, which can increase the temperature near the diabase to about 300℃, and that can, to some extent, account for the abnormal rise of the vitrinite reflectance, with the highest of about 3.8% (Ro). | HUWenxuan JINZhijun SONGYucai SUNRui DUANZhenhao | 2004 | Acta Geologica Sinica(English Edition)2004，78，1： | 6 |
| 2 | Natural eco-environmental evaluation of eastern Qinghai-Tibet Plateau using RS and GIS显示文摘The impact of interbasin water transfer on environment is very significant. The affected area of the west route scheme of the South to North Water Transfer Project in China (SNWT) is located in the eastern Tibetan Plateau, where the altitude is high with frigid eco-environment. In this article,remote sensing and GIS are applied to analyze the natural environment and the natural environmentindex is established to express the natural conditions of the study area. After the natural environment index is divided into four grades and the features of each grade are analysed, some results are obtained for reference in environmental assessment of the west route of SNWT. | YANG Shengtian, LIU Changming, YANG Zhifeng, SUNRui, ZHOU Xiaodong(1. Inst. of Environmental Sciences, Beijing Normal University, Beijing 100875, China 2. Dept. of Resources and Environmental Science, Beijing Normal University, Beijing 100875,China) | 2002 | Journal of Geographical Sciences2002，12，3： | 2 |
| 3 | 显示文摘 | ZHANGXia SUNRui ZHANGBing etal(张霞 孙睿 张兵 等) | 2006 | 农业工程学报2006，12，： | 1 |
| 4 | 显示文摘 | CHENJing(陈静) HANMei(韩梅) SUNRui(孙蕊) WANGJin-Tang(王锦堂) | | WujiHuaxueXuebao0，，： | 1 |
| 5 | Application of transmit diversity for improved robust watermarking显示文摘Many common multimedia signal processing, including cropping, filtering, and perceptual coding, make watermark signal fading-like modification. A scheme that applies transmit diversity technique to improve robustness of digital watermarking is presented. First, the scheme decomposes the original image using wavelet pyramid algorithm and chooses the middle-frequency band for transmission channel that the watermark will be embedded into. Then the watermark is pseudo-randomly permuted. The scheme makes use of space-time coding and differential detection technique to embed and extract watermark. The extracting process has access to neither the original image nor channel state information. Experimental results demonstrate that the scheme improves the performance of robust watermarking. | SunRui SunHong YaoTianren | 2004 | Journal of Systems Engineering and Electronics2004，15，2： | 1 |
| 6 | Clinical Analysis of Benign Esophageal Tumors in 62 Cases显示文摘 | JingDa-dao SunRui FanJian-Gao | 2000 | 胃肠病学2000，5，B08： | 0 |
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