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7篇 您的检索式:作者名="T.Cheng"
    题名 作者 年代 出处 被引量
1三维正交非结构网格数值模型中物理流场的定义方法与改进显示文摘使用Casulli等(2000)的数值方法建立了基于正交非结构网格的U型渠道的三维近岸正压水动力数值模型,检验了模型使用ELM(Eulerian-Lagrangian Method)方法处理平流项时,物理流场的定义对模拟结果的作用。数值试验和结果分析说明,使用ELM方法计算平流项所需的物理流场对计算结果影响明显,而目前常用的两种物理流场定义方法都存在一定不足——水位计算值对流速变化的反映不灵敏或者会产生小扰动等。针对常用物理流场定义方法的不足之处,作者在Casulli方法的基础上利用对多边形切向流速分量进行平均的方法改进了物理流场定义,抑制了小扰动。刘晓辉 董礼先 Ralph T.Cheng 2010海洋与湖沼2010,41,4:2
2On low-pass digital filters in oceanography显示文摘-Two types of filters are widely used to remove semidirunal and diurnal tidal signals and other high frequency noises in oceanography. The first type of filters uses moving average with weights in time domain, and can be easily operated. Some data will be lost at each end of the time series, especially for the low low-pass filters. The second type of filters uses the discrete Fourier transform filter (DFTF) which operates in the frequency domain, and there are no data loss at the ends for the forward transform. However, owing to the Gibbs phenomenon and the discrete sampling (Nyquist effect) , ringing appears in the inverse transformed data, which is especially serious at each end. Thus some data at the ends are also discarded. The present study tries to find out what causes the ringing and then to seek for methods to overcome the ringing. We have found that there are two kinds of ringings, one is the Gibbs phenomenon, as defined before. The other is the 'Nyquist'ringing due to sampling NyquistRalph T.Cheng 1993Acta Oceanologica Sinica1993,12,2:1
3The plasma glucose lowering action of tetrandrine in streptozotocin‐induced diabetic rats显示文摘W. C.Chen S.Hayakawa T.Yamamoto L. W.Huang J. T.Cheng I. M.Liu 2010Journal of Pharmacy and Pharmacology2010,,5:1
4Detectability and output feedback stabilizability of nonlinear networked control systems显示文摘A.V.Savkin T.Cheng 0,,:1
5Continuous wavelet analysis for the detection of green attack due to mountain pine beetle infestation显示文摘T.Cheng B.Rivard G.A.Sánchez-Azofeifa J.Feng M.Calvo-Polanco 0,,:1
6Spectroscopic determination of leaf water content using continuous wavelet analysis显示文摘T.Cheng B.Rivard A.Sánchez-Azofeifa 0,,:1
72015年度最佳中国卖方分析师显示文摘在《机构投资者》杂志举办的2015中国优秀卖方股票分析机构年度评选中,中国国际金融有限公司(CICC)获得中国研究团队评选的第一名。中金公司在此次的评选中总共占据18个团队席位,与去年相比少了7个,但仍比今年排名第二的瑞士信贷(Credit Suisse)多出3个席位。Allen T.Cheng 2016金融客2016,0,1:0
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