Results 101 to 110 of about 1,014,666 (143)

一种基于SVM的电力用户信用风险预警方法及系统

, 2019
本发明涉及一种基于SVM的电力用户信用风险预警方法及系统，将电力用户信用风险基础指标设定阈值，并根据阈值划分不同的电力用户信用风险基础指标的风险预警区间；选取样本数据，进行处理，运用主成分分析法对电力用户信用风险基础指标分配相应的权重，计算样本数据的风险预警评估值，根据风险预警评估值划分其所处的风险类别；建立电力用户信用风险预警SVM模型，并对电力用户信用风险进行预测；将得到的最优参数值作为电力用户信用风险预警SVM模型的参数值，对电力用户信用风险预警SVM模型进行优化 ...
王浩淼, 黄剑龙, 李力刚, 胡博, 王忠锋, 喻海飞, 张朝龙   +6 more
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台风引起南海海表面降温的位置变化特征

, 2010
台风过后通常会在上层海洋引起冷迹,即路径附近的海表面温度(sea surface temperature,SST)降低. 本文利用多种卫星数据分析了12年(1998-2009)内经过中国南海的92个台风所引起的海表降温位置的分布特征. 通过分析逐日微波遥感SST数据发现,64个台风(69.6%)引起了明显降温(降温≥2℃).
唐丹玲, 杨晓霞
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旋风分离器三维流场的测定

, 1978
在φ400mm及φ830mn两个实验模型上,用五孔探针及热线风速仪较详尽地测定了旋风分离器的三维速度场以及湍流强度场.除切向速度分布验证了前人结果外,得到了径向速度非轴对称性,轴向速度分布中心处存在滞流、倒流、湍流强度在中心有单峰分布等结果 ...
张蝶丽, 徐纪华, 郝敬尧, 王平生, 柳绮年, 贾复   +5 more
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Local Public Goods Provision in the Post-Agricultural Tax Era in Rural China [PDF]

This paper investigates regional differences in local public goods provision in rural area in the 2000s, using large village sample surveys (CHIP 2002 and 2007 surveys, a survey in Ningxia).
Hiroshi Sato, Sai Ding
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[Determination of eight per- and polyfluoroalkyl substances in seawater using dispersive membrane extraction-ultra-high performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Ren Z, Ma JP, Liu YJ, Zhang L, Wu GG, Li S.   +5 more
europepmc   +1 more source

[The practice of building a wound repair discipline system with Chinese characteristics in countryside area: insights from the "Three Souths" experience]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Fu XB.
europepmc   +1 more source

[Evaluation of Gradient-Variant Quantum Dot Fluorescence Technology for Rapid Detection of <i>Brucella</i>]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Li J, Wang X, Wang J, Tian S, Zhao C, Wang X, Jian W, Li S, Zhang Q, Zhou L.   +9 more
europepmc   +1 more source

[Preparation of a novel polyhydroxy silica stationary phase and application in the separation of alginate oligosaccharides]. [PDF]

Se Pu
Jiao RW, Zhang DD, Hu XY, Zhu WT, Li X, Cai YD, Ren DD, Wang QK, Wu L, Zhou H.   +9 more
europepmc   +1 more source

[Ethical risks and regulatory considerations in neurofeedback technology]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Xue Y, Li Z, Wang F, Zhao L, Li T, Gong A, Nan W, Fu Y.   +7 more
europepmc   +1 more source

[Progress and future prospects of robot-assisted total hip arthroplasty]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Cai L, Gui Y, Kong X, Chai W.
europepmc   +1 more source