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12篇 您的检索式:作者名="N.Q."
    题名 作者 年代 出处 被引量
1RELATIONSHIP AMONG EVAPORATION FLUX OF GROUNDWATER, DEPTH OF WATER TABLE AND NEGATIVE PRESSURE HEAD IN BARE SOIL显示文摘Evaporation of ground water is a part of moisture circulation in the field. And it is a main natural form in which water transmits from the ground water to the soil water and atmosphere water. According to the simulated experiments, we study the relationship among the evaporation, depth of groundwater table and negative pressure. By theoretical analysis of the experimental results, the main conclusions are drawn as follows. There are two abrupt points in every Q H curve. The locations of the abrupt points are separately in step with the height of top of the capillary fringe and the height of maximal capillary rise in the soil section. When the depth of ground water table H is small, the evaporation flux of ground water is large. While the depth of water table exceeds the maximal capillary rise of media in vadose zone, the capillary rise breaks up and evaporation flux of groundwater is small. The water content ratio in ground surface tends to be zero and the surface of soil tends to be drought. These conclusions show that the maximal capillary rise of media in vadose zone is an important value in regulating rational depth of ground water to reduce the evaporation of ground water and to increase effective quantity of water resources. In the meantime, these conclusions are of important theoretical and practical significance to reduce the evaporation of ground water, to prevent and cure the salinization of soil, and to make full use of and protect water resources in the northern plains in China.Qian, J.Z. Zhu, X.Y. Zhou, N.Q. Li, G.Y. 2000Journal of Hydrodynamics2000,12,4:3
2Microstructure of ultrafine-grained fcc metals produced by severe plastic deformation显示文摘J. Gubicza N.Q. Chinh Gy. Krállics I. Schiller T. Ungár 2005Current Applied Physics2005,,2:1
3Biodegradation of pyridine using aerobic granules in the presence of phenol显示文摘Sunil S. Adav Duu-Jong Lee N.Q. Ren 2007Water Research2007,,13:1
4Effect of equal channel angular pressing on tensile properties and fracture modes of casting Al–Cu alloys显示文摘D.R. Fang Z.F. Zhang S.D. Wu C.X. Huang H. Zhang N.Q. Zhao J.J. Li 2006Materials Science & Engineering A2006,,:1
5Hepatitis C Virus Replicates in the Same Immune Cell Subsets in Chronic Hepatitis C and Occult Infection显示文摘Tram N.Q. Pham Dawn King Sonya A. MacParland Jerry S. McGrath S. Bharati Reddy Ford R. Bursey Tomasz I. Michalak 2008Gastroenterology2008,,3:1
6239+240 Pu, 90 Sr and 137 Cs inventories in surface soils of Vietnam显示文摘N.H. Quang N.Q. Long D.B. Lieu T.T. Mai N.T. Ha D.D. Nhan P.D. Hien 2004Journal of Environmental Radioactivity2004,,3:1
7查看详情显示文摘Hu S.L Niu K.Y Sun J Yang J. Zhao N.Q. Du X.W 0,,:1
8波信号的解调和人工神经网络的损伤识别算法(英文)显示文摘讨论了基于波信号的解调和人工神经网络的损伤识别算法,以及其在Lamb波信号的应用。Lamb波与损伤相互作用,将修改回波信号,从该信息提取相关的损害信息可用于自动损伤检测。然而,由于该波与损害相互作用的复杂性,波信号的反应是不容易解释。反应的波信号被认为是一个高频率载波信号调制的低频信号。基线减法后,频域卷积和滤波,原来的信号解调成一个新的简单的信号,其与因损伤发生的能量变化有关。随后进行特征提取,通过寻找新信号的局部极大值和所取得的峰值和位置将作为人工神经网络的损伤特性的输入。这种损伤检测验证算法的有效性,通过一个带缺口复合材料层压板缺损模型利用有限元进行验证。对不同缺口深度和位置的反应波信号用于模拟和训练和测试的样本。最后,对网络的精度和泛化能力进行评估,结果是令人满意的。S. Saravanan F. Ju N.Q. Guo 2010无损检测2010,,8:1
9Multiwavelength Raman fiber lasers with equalized peak power using a sampled chirped fiber Bragg grating显示文摘G. Ning P. Shum S. Aditya D. Liu Y. Gong N.Q. Ngo M. Tang 2006Applied Physics B2006,,2:1
10Hepatitis C Virus Replicates in the Same Immune Cell Subsets in Chronic Hepatitis C and Occult Infection显示文摘Tram N.Q. Pham Dawn King Sonya A. MacParland Jerry S. McGrath S. Bharati Reddy Ford R. Bursey Tomasz I. Michalak 2008Gastroenterology2008,,3:1
11Assessing optimal fermentation type for bio-hydrogen production in continuous-flow acidogenic reactors显示文摘N.Q. Ren H. Chua S.Y. Chan Y.F. Tsang Y.J. Wang N. Sin 2006Bioresource Technology2006,,9:1
12Improve creep properties of reduced activation steels by controlling precipitation behaviors显示文摘Z.X. Xia C. Zhang N.Q. Fan Y.F. Zhao F. Xue S.J. Liu 2012Materials Science & Engineering A2012,,:1
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