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On the variation of water resource structure in the Lower Yellow River

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Science china(Technological Sciences) 2004年第z1期47卷 127-141页

作者： NI Jinren1, WANG Yudong1, QIAN Zhenghan1, LI Tianhong1 & ZHAO Yean2 1. Department of Environmental Engineering, Peking University The Key Laboratory of Water and Sedi- ment Sciences, Ministry of Education, Beijing 100871, china 2. Institute of Hydraulic Research, Yellow River Conservancy Commission, zhengzhou 450003. china Department of Environmental Engineering Peking University The Key Laboratory of Water and Sediment Sciences Ministry of Education

In view of river functions and the Minimum Water Demand for River Ecosystem (MWDRE), the water resources in the Lower Yellow River is further divided into three portions, i.e. water available for ecosystem (WE), water exploitable for socioeconomic purposes (WS) and excess flood water (WF). Corresponding conceptions and practical significances are expounded in details. The annual amount of the three portions of water resources from 1950 to 2001 is worked out on the basis of the daily hydrologic data, and the division of different portions is discussed. The results indicate that although the essential water demand for river functions is considered preferentially, the amount of the WE has decreased dramatically while its proportion increased gradually since the 1950s, and the shortage to the MWDRE increased markedly; both the amount and the proportion of the WS decreased notably. Since the 1990s, the actual water consumption for socioeconomic purposes in the lower reaches of the river basin has already exceeded the maximum amount of the WS and has to take over the WE which is already insufficient, hence not only the normal river functions are further disturbed and the river course shrinks greatly, but also the proportion and potential danger of the WF show no decreasing tendency in spite of the sharp decrease of upstream runoff.

关键词： the Yellow River, water resource structure, water available for ecosystem, water exploitable for socioeconomic purposes, excess flood water.

Equitable Coloring of Complete r-partite Graphs

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Chinese Quarterly Journal of Mathematics 2004年第4期19卷 412-415页

作者： WANG Xiu-mei(Department of Mathematics, zhengzhou University, zhengzhou 4.0052, china) Department of Mathematics Zhengzhou University Zhengzhou 450052 China

A graph is equitably k-colorable if its vertices can be partitioned into k independent sets of as near equal sizes as possible. In this paper, we determine a sufficient and necessary condition for which a complete r-p... 详细信息

关键词： complete r-partite graph equitably k-colorable equitable chromatic number

Array errors active calibration algorithm based on instrumental sensors

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Science china(Information Sciences) 2011年第7期54卷 1500-1511页

作者： WANG Ding & WU Ying Institute of Information Engineering,Information Engineering University,zhengzhou 4.0002,china Institute of Information Engineering Information Engineering University

The array mutual coupling,gain-phase errors and sensor position errors would significantly degrade the performance of high-resolution direction of arrival (DOA) estimation *** at the combined influences of the above three array errors,a kind of active calibration algorithm is presented with the help of instrumental sensors in this ***,the integrated effects of the three array errors are shown to be equivalent to angularly dependent gain-phase ***,a non-linear least square (LS) optimization model for the three array errors is established through an auto-calibration algorithm using auxiliary sensors,and the corresponding resolving algorithms of the LS optimization problem are given according to the different models of array errors ***,the parameter estimation uniqueness of the proposed algorithms is analyzed in detail and an improvement strategy is ***,the effectiveness of the novel algorithm is validated by simulations.

关键词： array calibration array errors mutual coupling effect gain-phase errors sensor position errors instrumental sensors

ACCURACY ANALYSIS OF 12-PARAMETER RECTANGULAR PLATE ELEMENTS WITH GEOMETRIC SYMMETRY

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Systems Science and Mathematical Sciences 2000年第2期13卷 146-151页

作者： SHI Dongyang CHEN Shaochun (Department of Mathematics, zhengzhou University, zhengzhou 4.0052, china) 郑州大学数学系河南郑州 450052 郑州大学数学系河南郑州

In this paper, it is proved that the double set parameter rectangular plate elements with geometric symmetry possess a very special convergence property, i.e., the consistency error due to nonconformity is of order O(h2) which is one order higher than that of ACM element and rectangular generalized conforming element proposed by Y. Q. Long, although all these elements have the same asympotical rate of convergence O(h) in the energy norm. This particular property seems to be never seen before for other nonconforming rectangular plate elements.

关键词： Nonconforming rectangular element geometric symmetry special convergence.

Use-wear analysis confirms the use of Palaeolithic bone tools by the Lingjing Xuchang early human

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Chinese Science Bulletin 2010年第21期55卷 2282-2289页

作者： LI ZhanYang 1,4.& SHEN Chen 2,3,4.1 Henan Provincial Institute of Cultural Relics and Archaeology,zhengzhou 4.0000,{4. 2 The Joint Laboratory of Human Evolution and Archaeometry,Chinese Academy of Sciences,Beijing 10004.,{4. 3 The Royal Ontario Museum,Toronto ON M5S2C6,Canada 4.Oriental Archaeology Research Center of Shandong University,Jinan 250100,{4. Henan Provincial Institute of Cultural Relics and Archaeology Zhengzhou 450000 China Oriental Archaeology Research Center of Shandong University Jinan 250100 China The Joint Laboratory of Human Evolution and Archaeometry Chinese Academy of Sciences Beijing 100044 China The Royal Ontario Museum Toronto ON M5S2C6 Canada

During 2007-2008 excavations at the Lingjing site near Xuchang,Henan Province,dated back to around 100-80 ka ago,a large quantity of mammalian fossil remains were recovered along with a remarkable cluster of Early Modern Human(EMH) skull fragments in *** some of those animal bones were probably modified into tools.A use-wear analysis was carried out to examine the functions of modified bone *** results suggest that Lingjing bone tools were used for drilling,penetrating,and scraping animal substances,and that some might have been hafted during the *** study confirms that early existence ofintentionally-modified bone tools at human occupations of the early Late Pleistocene in northern *** discovery suggests making and use of bone tools were inevitably a part of early human behaviors and cultural development,as such of stone tools.

关键词：早期人类磨损分析旧石器时代工具许昌哺乳动物化石现代人类动物骨头

Simple and sensitive determination of sparfloxacin in pharmaceuticals and biological samples by immunoassay

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Journal of Pharmaceutical Analysis 2012年第3期2卷 214-219页

作者： Hua-Jin Zenga,Ran Yangb,Bing Liub,Li-Fang Leib,Jian-Jun Lib,Ling-Bo Qub,c,n aSchool of Pharmaceutical Sciences,zhengzhou University,zhengzhou 4.0001,china bDepartment of Chemistry,zhengzhou University,zhengzhou 4.0001,china cSchool of Chemistry & Chemical Engineering,Henan University of Technology,zhengzhou 4.0001,china School of Pharmaceutical Sciences Zhengzhou University Zhengzhou 450001 China. Department of Chemistry Zhengzhou University Zhengzhou 450001 China. School of Chemistry & Chemical Engineering Henan University of Technology Zhengzhou 450001 China.

Plasma quinolone concentrations are not routinely measured in clinical ***,in order to optimize quinolone treatment,monitoring of plasma concentrations could sometimes be useful particularly in critically ill *** this study,anti-sparfloxacin antibody was obtained by immunizing rabbits with sparfloxacin conjugated with bovine serum albumin using isobutyl chloroformate *** the assay procedure was optimized,the standard curve of sparfloxacin was *** practical measuring range of the competitive ELISA extended from 5 ng/mL to 2 mg/*** recovery rates and coefficients of variation for rat plasma,urine and tissues were 87.7-106.2% and 4.8-15.3%,*** demonstrate the potential of the ELISA,a preliminary pharmacokinetics and tissue distribution study of sparfloxacin in rats and quantitative analysis of sparfloxacin in several pharmaceuticals were performed and compared with high-performance liquid chromatography(HPLC).The experimental data indicated that the proposed method would be a valuable tool in therapeutic drug monitoring(TDM) for sparfloxacin.

关键词： Sparfloxacin Enzyme-linked immunosorbent assay(ELISA) Biological samples Pharmacokinetics Tissue distribution

MINIMUM PROFILE OF GRID NETWORKS

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Systems Science and Mathematical Sciences 1994年第1期7卷 56-66页

作者： LIN Yixun YUAN Jinjiang(Department of Mathematics, zhengzhou University, zhengzhou 4.0052, china)

ＭＩＮＩＭＵＭＰＲＯＦＩＬＥＯＦＧＲＩＤＮＥＴＷＯＲＫＳ￥ＬＩＮＹｉｘｕｎ；ＹＵＡＮＪｉｎｊｉａｎｇ（ＤｅｐｏｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓ，ＺｈｅｎｇｚｈｏｕＵｎｉｖｅｒｓｉｔｙ，Ｚｈｅｎｇｚｈｏｕ４５００... 详细信息

ＭＩＮＩＭＵＭＰＲＯＦＩＬＥＯＦＧＲＩＤＮＥＴＷＯＲＫＳ￥ＬＩＮＹｉｘｕｎ；ＹＵＡＮＪｉｎｊｉａｎｇ（ＤｅｐｏｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓ，ＺｈｅｎｇｚｈｏｕＵｎｉｖｅｒｓｉｔｙ，Ｚｈｅｎｇｚｈｏｕ４５００５２，Ｃｈｉｎａ）Ａｂｓｔｒａｃｔ...

关键词： Matrix graph profile.

Allelic frequency distributions of 21 non-combined DNA index system STR loci in a Russian ethnic minority group from Inner Mongolia,china

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2013年第6期14卷 533-540页

作者： Hong-dan WANG Chun-mei SHEN Wen-juan LIU Yu-dang ZHANG Guang YANG Jiang-wei YAN Hai-xia QIN Bo-feng ZHU School of Medicine Xi'an Jiaotong University People's Hospital of zhengzhou University Medical Genetic Institute of Henan Province People's Hospital of Henan Province Blood Center of Shaanxi Province Vascular Biology Center Georgia Health Sciences UniversityAugustaGA 30912USA Beijing Institute of Genomics Chinese Academy of Science Department of Internal Medicine Morehouse School of MedicineAtlantaGA 30303USA

We studied the allelic frequency distributions and statistical forensic parameters of 21 new short tandem repeat(STR)loci and the amelogenin locus,which are not included in the combined DNA index system(CODIS),in a Russian ethnic minority group from the Inner Mongolia Autonomous Region,china.A total of 114.bloodstain samples from unrelated individuals were extracted and co-amplified with four fluorescence-labeled primers in a multiplex polymerase chain reaction(PCR)*** capillary electrophoresis,the PCR products of the 21 STR loci were separated and genotyped.A total of 161 alleles were observed in the Russian ethnic minority group,and corresponding allelic frequencies ranged from 0.004. to *** 21 non-CODIS STR loci of the Russian ethnic minority group were characterized by high genetic diversity and therefore may be useful for elucidating the population's genetic background,for individual identification,and for paternity testing in forensic practice.

关键词： Short tandem repeat(STR) Russian population Genetic polymorphisms

Array errors active calibration algorithm and its improvement

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Science china(Information Sciences) 2010年第5期53卷 1016-1033页

作者： WANG Ding & WU Ying Institute of Information Engineering, Information Engineering University, zhengzhou 4.0002, china Institute of Information Engineering Information Engineering University

The combined effects of mutual coupling, gain and phase errors, and sensor position errors have great negative impact on the direction-finding performance of the MUSIC algorithm. This paper investigates the calibration of the array errors induced by the three errors. Based on the array errors calibration algorithm (algorithm 1) presented by See, two improved array error-calibrating algorithms are presented. One (algorithm 2) uses the sparseness of mutual coupling matrix, and the other (algorithm 3) utilizes more special structures of mutual coupling matrix. Although the three algorithms have the same computation mode and theoretical framework, the latter two algorithms have much higher precision than the former one, as more properties of mutual coupling matrix are utilized in the two algorithms, and if the array manifold is uniform linear array or uniform circular array, algorithm 3 could have more obvious advantages. On the other hand, the three algorithms can be generalized to the situation when the calibration source azimuths have deviations. The three extended algorithms can not only calibrate the array errors, but also offset the deviations of calibration source azimuths simultaneously. Finally, the performances of the three algorithms are compared both in the absence and presence of the deviations of calibration source azimuths. Many simulation experiments demonstrate that the estimation precision of array errors can be obviously improved if more properties of mutual coupling matrix are effectively used.

关键词： array calibration mutual coupling gain and phase error sensor position errors complex symmetric banded Toeplitz matrix complex symmetric circular matrix sparse matrix