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41篇 您的检索式:作者名="Tianshuang"
    题名 作者 年代 出处 被引量
1Spatial heterogeneity and source apportionment of soil metal(loid)s in an abandoned lead/zinc smelter显示文摘Metal smelting have brought severe metal(loid)s contamination to the soil.Spatial distribution and pollution source analysis for soil metal(loid)s in an abandoned lead/zinc smelter were studied.The results showed that soil was contaminated heavily withmetal(loid)s.The mean of lead(Pb),arsenic(As),cadmium(Cd),mercury(Hg)and antimony(Sb)content in topsoil is 9.7,8.2,5.0,2.3,and 1.2 times higher than the risk screening value for soil contamination of development land of China(GB36600-2018),respectively.Cd ismainly enriched in the 0–6mdepth of site soil while As and Pbmainly deposited in the 0–4mlayer.The spatial distribution of soil metal(loid)s is significantly correlated with the pollution source in the different functional areas of smelter.As,Hg,Sb,Pb and copper(Cu)were mainly distributed in pyrometallurgical area,while Cd,thallium(Tl)and zinc(Zn)was mainly existed in both hydrometallurgical area and raw material storage area.Soil metal(loid)s pollution sources in the abandoned smelter are mainly contributed to the anthropogenic sources,accounting for 84.5%.Specifically,Pb,Tl,As,Hg,Sb and Cumainly from atmospheric deposition(55.9%),Cd and Zn mainly from surface runoff(28.6%),While nickel(Ni)mainly comes from parent material(15.5%).The results clarified the spatial distribution and their sources in different functional areas of the smelter,providing a new thought for the risk prevention and control of metal(loid)s in polluted site soil.Yunxia Zhang Tianshuang Li Zhaohui Guo Huimin Xie Zhihao Hu Hongzhen Ran Changzhou Li Zhichao Jiang 2023Journal of Environmental Sciences2023,,5:5
2A NEW CORRENTROPY BASED TDE METHOD UNDER α-STABLE DISTRIBUTION NOISE ENVIRONMENT显示文摘This paper presents a robust time delay estimation algorithm for the α-Stable noise based on correntropy. Many time delay estimation algorithms derived for impulsive stable noise are based on the theory of Fractional Lower Order Statistics (FLOS). Unlike previously introduced FLOS-type algorithms, the new algorithm is proposed to estimate the time delay by maximizing the generalized correlation function of two observed signals needing neither prior information nor estimation of the numerical value of the stable noise's characteristic exponent. An interval for kernel selection is found for a wide range of characteristic exponent values of α-Stable distribution. Simulations show the proposed algorithm offers superior performance over the existing covariation time delay estimation, least mean p-norm time delay estimation and achieves slightly improved performance than fractional lower order covariance time delay estimation at lower signal to noise ratio when the noise is highly impulsive.Song Aimin Tong Zhijian Qiu Tianshuang 2011Journal of Electronics(China)2011,28,3:5
3Narrowband time delay estimation based on correlation coefficient显示文摘The problems of time delay estimation of narrowband signals are presented.The disadvantages of the existing algorithms are analyzed,and a new narrowband time delay estimating algorithm based on correlation coefficient is proposed.The original time delay information is transfered into the delay between the autocorrelation and cross-correlation function,and the precise estimating result by wave-comparison is given.The algorithm proposed here is also compared with other algorithms and its advantages over other algorithms are proved.The theoretical analysis and simulation show the effectiveness of the proposed algorithm.Gao Yang Qiu Tianshuang Sha Lan Zhao Yanbin 2009Journal of Systems Engineering and Electronics2009,20,5:3
4New HB-weighted time delay estimation algorithm under impulsive noise environment显示文摘The traditional HB-weighted time-delay estimation (TDE) method degenerates under the impulsive noise environment.Two new time-delay estimation methods are proposed based on fractional lower order statistics (FLOS) according to the impulsive characteristics of fractional lower order a-stable noises.Theoretic analysis and computer simulations indicate that the proposed covariation based HB weighted (COV-HB) algorithm can suppress impulsive noises in one received signal for 1≤α≤2,whereas the other proposed fractional lower order covariance- based HB weighted (FLOC-HB) algorithm has robust performance under arbitrary impulsive noise conditions for the whole range of 0<α≤2.Sun Yongmei Qiu Tianshuang 2008Journal of Systems Engineering and Electronics2008,19,6:2
5An adaptive reanalysis method for genetic algorithm with application to fast truss optimization显示文摘尽管为结构的优化的基因算法(GA ) 是很柔韧的,它比 optimality 标准和数学编程方法很计算地集中、因此慢。加快设计过程,在场的作者为 GA 的一个适应分析方法和它在最佳的设计的应用捆绑。这种分析技术首先从樱桃酒鈥檚 被导出联合近似方法。一个重复计划被采用适应地在每代决定基础向量的数字。以便说明这个方法,三个古典例子最佳捆绑设计被用来验证建议基于 reanalysis 的设计过程。介绍数字结果证明适应分析技术很稍微影响最佳的解决方案的精确性并且确实加速设计进程,特别为大规模结构。关键词捆绑结构 - 适应分析 - 基因算法 - 快优化工程被中国(50975121 ) 和吉林的毕业生革新资金的工程 2009-2007 的国家自然科学基金会支持大学。Tao Xu Wenjie Zuo Tianshuang Xu Guangcai Song Ruichuan Li 2010Acta Mechanica Sinica2010,26,2:2
6Transportation of dynamic biochemical signals in non-reversing oscillatory flows in blood vessels显示文摘Biological processes and behaviors of endothelial cells on the inner surfaces of blood vessels are regulated by the stimulation from biochemical signals contained in the blood.In this paper,the transportation of dynamic biochemical signals in non-reversing oscillatory flows in blood vessels is analyzed by numerically solving a nonlinear governing equation for the time-dependent Taylor-Aris dispersion.Results show that the nonlinear frequency-amplitude modulation of the transportation of biochemical signals is more(less) significant when the frequency of an oscillatory flow is close to(higher than) that of an oscillatory signal.Under steady flow,the transfer function for the signal transmission system is obtained,showing that the system is a low-pass filter.Lower inner radius or higher center-line velocity of a blood vessel increases the cutoff frequency of the transportation system.These results suggest the possibility and condition for the 'remote' transmission of low-frequency dynamic biochemical signals in pulsatile blood flows.ZHU Yong LI YiZeng QIN KaiRong TANG Hong QIU TianShuang 2013Science China(Physics,Mechanics & Astronomy)2013,56,2:2
7Adaptive blind equalization for MIMO systems under a-stable noise environment显示文摘Li Sen Qiu Tianshuang ZhaDaifeng 2009IEEE Communications Letters2009,13,8:1
8Image features extraction and fusion based on joint sparse representation显示文摘Nannan Yu Tianshuang Qiu Feng Bi Aiqi Wang 0,,05:1
9IKKε modulates RSV-induced NF-κB-dependent gene transcription显示文摘Xiaoyong Bao Hemalatha Indukuri Tianshuang Liu Sui-Ling Liao Bing Tian Allan R. Brasier Roberto P. Garofalo Antonella Casola 2010Virology2010,,2:1
10A macro-cell statiatical location estimation method for TD-SCDMA networks显示文摘Hong Tang Ting Li Tianshuang Qiu Yongwan Park 2009Signal Processing2009,,:1
11Con- stant modulus algorithm for cochannel signal sepa- ration in non-gaussian impulsive noise environments 显示文摘Tang Hong Li Ting Qiu Tianshuang 2010Wireless Personal Communications2010,54,4:1
12Adaptive estimation of latency change in evoked potentials by direct least mean p-norm time-delay estimation显示文摘Kong Xuan Qiu Tianshuang 1999IEEE Transactions on Biomedical Engineering1999,46,8:1
13Adaptive estimation of la- tency change in evoked potentials by direct least mean p- norm time-delay estimation 显示文摘Kong Xuan Qiu Tianshuang 1999IEEE Transactions on Biomedical Engineering1999,46,8:1
14Adaptive Mixed-norm Filtering Algorithm based on SctSG Noise Model 显示文摘Daifeng Zha Tianshuang Qiu 2007Digital Signal Processing (S1051-2004)2007,17,2:1
15NLOS mitigation for TOA location based on a modified deterministic model显示文摘Tang Hong Park Yongwan Qiu Tianshuang 2008Research Letters in Signal Processing2008,,:1
16Underwater source location in non-Gaussian impulsive noise environments 显示文摘Zha Daifeng Qiu Tianshuang 2006Digital Signal Processing2006,16,8:1
17Direction finding in non-Gaussian impulsive noise environments显示文摘Zha Daifeng Qiu Tianshuang 2007Digital Signal Processing2007,17,1:1
18Performance of RBF neural network for array processing in impulsive noise environment显示文摘GUO Wenqiang QIU Tianshuang TANG Hong 2008Digital Signal Processing2008,18,:1
19Latency change estimation for evoked potentials via frequency selective adaptive phase spectrum analyzer 显示文摘KONG Xuan QIU Tianshuang 1999IEEE Trans on Biomed Engineering1999,46,8:1
20Latency change estimation for evoked potentials via frequency selective adaptive phase spectrum analyzer 显示文摘Kong Xuan Qiu Tianshuang 1999IEEE Trails on Biomedical Engineering1999,46,8:1
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