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Based on the data from the map of climate, soil water and land use (1982 and 2002) in Anjiagou catchment in the loess plateau, this paper Studies the change of land use, the evapotranspiration, the ecological water use for the different plant species and
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摘要为探讨黄土高原地区的生态恢复，以半干旱黄土丘陵区安家沟小流域的气象、土壤水分、地形图和土地利用图（1982年和2002年）为源信息，分析了不同植被类型的蒸散量和生态用水量、流域生态用水量及其与气候和土地利用变化的关系。 |
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Based on the data obtained from the in-situ electromagnetic pollution investigation on Bawangfen-Tongxian line of Beijing subway, the paper analyzes and evaluates the potential danger on people and the surroundings caused by the pollution source along the
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摘要基于对北京地铁八通线电磁辐射的实地调查数据，分析城市轨道交通沿线电磁辐射污染源对周围环境及对人体可能产生的潜在危害，提出对城市轨道交通产生的电磁辐射污染进行有效控制的不同方法。 |
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Based on the data of Chinese listed companies, this paper analyzes the relationship between executive's compensation and corporate performance.
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摘要本文利用我国上市公司高管人员报酬数据及财务数据，分析了上市公司高管人员的报酬现状及其报酬绩效联系。 |
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Based on the data of foreign direct investment in Nanjing, this paper tries to establish a regression model by C-D production function,evaluating the technological overflow effect.
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本文结合南京利用外资的实际情况，根据柯布一道格拉斯(C—D)函数建立衡量技术溢出效应的回归模型，并进行实证分析。 |
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Based on the data of ice flood from 1957 to 1983, the method of topological forecasting of grey theory was applied to study the law of ice condition of Inner Mongolia reaches of the Yellow River, and topological models of ice flood were built, and the fre
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摘要本文应用灰色拓扑预测方法，根据1957年-1983年的实测资料，探讨黄河内蒙古段冰情预报的规律，并建立了冰情预测模型，对1984~2005年的开河、封河情况进行了预测。 |
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Based on the data of petrochemical and refining industries in 2004 and 2005, an econometrics model is set up to work out the price level by which the synthetic materials industry could reach the maximum of profit's increment, and the price by which the re
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本文以2004年和2005年石油化工和石油精炼行业的利润和国际油价数据为基础，建立计量经济模型，测算出与合成材料产业利润增量最大化相对应的油价水平以及与石油精炼产业盈亏平衡点相对应的油价水平。 |
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Based on the data of the rare-earth element in coals from coal seams of the Late Permian Liupanshui, Leping, Huangshi and Chongqing coal mining districts in South China, this paper focuses on the discussion of the characters of content distribution, occur
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摘要在华南地区贵州六盘水、江西乐平和湖北黄石矿区以及重庆钟梁山和磨心坡煤矿晚二叠世煤的稀土元素电感耦合等离子质谱分析数据的基础上，系统研究了华南地区煤的稀土元素的质量分数分布特征、赋存特征、配分模式及其地质控制因素。 |
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Based on the data on 2010 Shanghai Grid plan, and taking the two HVDC systems, Gezhouba to Nanqiao and Three Gorge to Shanghai Huaxin, which will have set in Shanghai by 2010 as simulation objects, the impacts of multiinfeed HVDC system faults on transien
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以2010年上海电网规划数据以及届时落点于上海电网的葛洲坝－南桥、三峡－上海华新2条直流输电系统为仿真研究对象，主要研究了当直流输电系统出现故障时对上海电网的暂态稳定带来的影响。 |
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Based on the data processing it can determine the radius of laser beam, and automatically calculate the orbits of the sintering center according to the boundary of the parts, and the precision of parts is made better.
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对加工参数选择进行研究，确定光斑半径补偿，并根据轮廓直线的转接情况自动计算出烧结中心轨迹，得到了精度较高的原型坯件。 |
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Based on the data, the development trends of doctor education of library science are put forward.
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在此基础上，比较系统地分析了我国图书馆学博士研究生教育的现状、规律与趋势。 |
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Based on the decode-and-forward relaying mode, a joint optimization scheme of power and bandwidth was analyzed for two-hop relaying system with orthogonal frequency division multiplexing (OFDM).
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摘要针对再生中继方式，分析了基于正交频分复用(OFDM)的两跳中继系统的功率和带宽的联合优化，并以最大化端到端的信息速率为优化准则，给出了两跳的次优带宽分配策略和相应的功率分配注水定理算法。 |
