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Impact of water and sediment discharges on subaqueous delta evolution in yangtze Estuary from 1950 to 2010

Water Science and Engineering 2014年第3期7卷 331-343页

作者： Yun-ping yang Yi-tian LI Yong-yang FAN Jun-hong ZHANG Key Laboratory of Engineering Sediment Tianjin Research Institute for Water Transport EngineeringMinistry of Transport State Key Laboratory of Water Resources and Hydropower Engineering Science Wuhan University

In order to determine how the subaqueous delta evolution depends on the water and sediment processes in the yangtze Estuary, the amounts of water and sediment discharged into the estuary were studied. The results show that, during the period from 1950 to 2010, there was no significant change in the annual water discharge, and the multi-annual mean water discharge increased in dry seasons and decreased in flood seasons. However, the annual sediment discharge and the multi-annual mean sediment discharge in flood and dry seasons took on a decreasing trend, and the intra-annual distribution of water and sediment discharges tended to be uniform. The evolution process from deposition to erosion occurred at the -10 m and -20 m isobaths of the subaqueous delta. The enhanced annual water and sediment discharges had a silting-up effect on the delta, and the effect of sediment was greater than that of water. Based on data analysis, empirical curves were built to present the relationships between the water and sediment discharges over a year or in dry and flood seasons and the erosion/deposition rates in typical regions of the suhaqueous delta, whose evolution followed the pattern of silting in flood seasons and scouring in dry seasons. Notably, the Three Gorges Dam has changed the distribution processes of water and sediment discharges, and the dam＇s regulating and reserving functions can benefit the subaqueous delta deposition when the annual water and sediment discharges are not affected.

关键词： water discharge sediment discharge, seasonal change delta yangtze Estuary

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Adaptive synchronization of a class of fractional-order complex-valued chaotic neural network with time-delay

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Chinese Physics B 2021年第12期30卷 248-253页

作者： Mei Li Ruo-Xun Zhang Shi-ping yang College of Physics Hebei Normal UniversityShijiazhuang 050024China Department of Computer Science North China Electric Power UniversityBaoding 071003China College of Primary Education Xingtai UniversityXingtai 054001China

This paper is concerned with the adaptive synchronization of fractional-order complex-valued chaotic neural networks(FOCVCNNs)with *** chaotic behaviors of a class of fractional-order complex-valued neural network are ***,based on the complex-valued inequalities of fractional-order derivatives and the stability theory of fractional-order complex-valued systems,a new adaptive controller and new complex-valued update laws are proposed to construct a synchronization control model for fractional-order complex-valued chaotic neural ***,the numerical simulation results are presented to illustrate the effectiveness of the developed synchronization scheme.

关键词： adaptive synchronization fractional calculus complex-valued chaotic neural networks time-delay

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A New Approach to Development of Composite Web Services

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Wuhan University Journal of Natural Sciences 2006年第1期11卷 211-216页

作者： yang Yan-ping TAN Qing-ping YU Jin-shan LIU Feng College of Computer National University of Defense Technology Changsha 410073 Hunan China

With the requirement for complex Web Services steadily increasing, there is a growing interest for reusing basic, existing Web Services to composite new ones. We present a composite Web Services development approach driven by model driven architecture （MDA） ,using UML（Unified Modeling Language） class diagram to model structure HM （Plateform Independent Platform） and UML activity diagram to model behavior PIM, then by model transformation converting the PIMs to specific Web Services specification platforms and execution platform to get the corresponding PSMs （platform specific models）. The main contributions of this paper are the all-around solution to Web Services composition development and the transformation rules for structure and behavior model of Web Services between PIMs and PSMs.

关键词： Web service composition MDA model transformation UML

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A highly selective magnetic sensor with functionalized Fe/Fe_3O_4 nanoparticles for detection of Pb^(2+)

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Chinese Chemical Letters 2016年第6期27卷 891-895页

作者： Yan yang yang Zhang Jin-Chao Shen Hong yang Zhi-Guo Zhou Shi-ping yang The Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors Shanghai Normal University

A magnetic sensor for detection of Pb^2＋ has been developed based on Fe/Fe3O4 nanoparticles modified by3-（3,4-dihydroxyphenyl）propionic acid（DHCA）. The carboxyl groups of DHCA have a strong affinity to coordination behavior of Pb^2＋ thus inducing the transformation of Fe/Fe3O4 nanoparticles from a dispersed to an aggregated state with a corresponding decrease, then increase in transverse relaxation time（T2） of the surrounding water protons. Upon addition of the different concentrations of Pb^2＋ to an aq. solution of DHCA functionalized Fe/Fe3O4 nanoparticles（DHCA-Fe/Fe3O4 NPs）（[Fe] = 90 mmol/L）, the change of T2 values display a good linear relationship with the concentration of Pb^2＋ from 40 μmol/L to 100 μmol/L and from 130 μmol/L to 200 μmol/L, respectively. Owing to the especially strong interaction between DHCA and Pb^2＋, DHCA-Fe/Fe3O4 NPs exhibited a high selectivity over other metal ions.

关键词： Magnetic sensor Fe/Fe3O4 nanoparticles Pb2+

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Distribution optimization of circulating water in air-cooled heat exchangers for a typical indirect dry cooling system on the basis of entransy dissipation

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Science China(Technological Sciences) 2015年第4期58卷 617-629页

作者： SUN Jian YUAN Kai yang Li Jun CHEN Lin DU Xiao Ze yang Yong ping Key Laboratory of Condition Monitoring and Control for Power Plant Equipments of Ministry of Education School of Energy Power and Mechanical Engineering North China Electric Power University

The flow and heat transfer of air-cooled heat exchangers play important roles in the performance of indirect dry cooling systems in power plants,so it is of benefit to the design and operation of a typical indirect dry cooling system to optimize the thermo-flow characteristics of air-cooled heat *** entransy dissipation method is applied to the performance optimization of air-cooled heat exchangers in this *** irreversible heat transfer processes in air-cooled heat exchangers,the heat transfer between circulating water and cooling air and the mixing of circulating water,are taken into account and analyzed by means of the entransy dissipation *** total entransy dissipation rate,which connects the geometrical parameters of air-cooled heat exchanger sectors and the heat capacity rates of the fluids to the heat flow rate in every sector,is *** on the mathematical relation and the conditional extremum method,an optimization equation group is derived,by which the air-cooled heat exchanger with known air-side parameters is optimized,showing that the entransy dissipation based optimization approach can contribute to the distribution optimization of circulating water in air-cooled heat exchangers of a typical indirect dry cooling system.

关键词： indirect dry cooling system air-cooled heat exchanger entransy dissipation optimization

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Deep-Ensemble Learning Method for Solar Resource Assessment of Complex Terrain Landscapes

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Energy Engineering 2024年第5期121卷 1329-1346页

作者： Lifeng Li Zaimin yang Xiongping yang Jiaming Li Qianyufan Zhou ping yang Energy Development Research Institute China Southern Power GridGuangzhou510000China Corporate Headquarters China Southern Power GridGuangzhou510000China Guangdong Green Energy Key Laboratory South China University of TechnologyGuangzhou510000China

As the global demand for renewable energy grows,solar energy is gaining attention as a clean,sustainable energy *** assessment of solar energy resources is crucial for the siting and design of photovoltaic power *** study proposes an integrated deep learning-based photovoltaic resource assessment *** learning and deep learning methods are fused for photovoltaic resource assessment for the first *** proposed method combines the random forest,gated recurrent unit,and long short-term memory to effectively improve the accuracy and reliability of photovoltaic resource *** proposed method has strong adaptability and high accuracy even in the photovoltaic resource assessment of complex terrain and *** experimental results show that the proposed method outperforms the comparison algorithm in all evaluation indexes,indicating that the proposed method has higher accuracy and reliability in photovoltaic resource assessment with improved generalization performance traditional single algorithm.

关键词： Photovoltaic resource assessment deep learning ensemble learning random forest gated recurrent unit long short-term memory

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新冠疫情背景下苏宁易购的利润表研究

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江苏商论 2025年第1期 11-14,52页

作者：隋佳轩杨西平西藏民族大学陕西咸阳712082

随着资本市场的不断发展和各种财务指标分析的完善,中国的财务分析方法日趋成熟,尤其是利润表方面的分析,与其有关的研究成果逐渐趋向于完善。由于苏宁易购在电商行业占据了极其重要的地位,所以利润表分析能够更清晰地披露苏宁易购在发... 详细信息

随着资本市场的不断发展和各种财务指标分析的完善,中国的财务分析方法日趋成熟,尤其是利润表方面的分析,与其有关的研究成果逐渐趋向于完善。由于苏宁易购在电商行业占据了极其重要的地位,所以利润表分析能够更清晰地披露苏宁易购在发展战略中所出现的问题。因此,利润表分析尤其重要,所以文本将从利润表的角度对苏宁易购进行分析。

关键词：利润表苏宁易购财务分析

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Tool for Predicting the Ultimate Bending Moment of Ship and Ship-Shaped Hull Girders

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Journal of Shanghai Jiaotong university(Science) 2018年第4期23卷 515-526页

作者： VU Van Tuyen yang ping School of Transportation Wuhan University of TechnologyWuhan 430063China Key Laboratory of High Performance Ship Technology Ministry of EducationWuhan University of TechnologyWuhan 430063China Faculty of Shipbuilding Vietnam Maritime UniversityHai Phong 180000Vietnam

The present paper presents a historical review associated with the research works on hull girder strength of ship and ship-shaped ***,a new program is developed to determine the ultimate vertical bending moment of hull girder by applying direct method,stress distribution method,and progressive collapse analysis *** ships and ship-shaped structures used in the benchmark study of International Ship and Offshore Structures Congress(ISSC) in 2012 are adopted as *** calculation results by applying the developed program are analyzed and compared with the existing ***,the roles of the developed program and its further development are discussed.

关键词： ship structure hull girder ultimate bending moment (UBM) ultimate strength

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Formation Mechanism and Binding Energy for Body-Centred Regular Tetrahedral Structure of Li5

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Communications in Theoretical Physics 2006年第5期45卷 914-918页

作者： LI ping yang Jian-Hui GOU Qing-Quan Institute of Atomic and Molecular Physics Sichuan University Chengdu 610065 China

The formation mechanism for the body-centred regular tetrahedral structure of Li5 cluster is proposed. The curve of the total energy versus the separation R between the nucleus at the centre and nuclei at the apexes for this structure of Li5 has been calculated by using the method of Gou＇s modified arrangement channel quantum mechanics （MACQM）, The result shows that the curve has a minimal energy of-37.2562 a.u. at R =14.5α0. When R approaches infinity the total energy of five lithium atoms has the value of-37.1401 a.u. So the binding energy of Li5 with respect to five lithium atoms is the difference of 0.1161 a.u. for the above two energy values. Therefore the binding energy per atom for Li5 is 0.023 22 a.u., or 0.632 eV, which is greater than the binding energy per atom of 0.453 eV for Li2 and the binding energy per atom of 0.494 eV for Li3 calculated previously by us. This means that the Li3 cluster may be formed stably in a body-centred regular tetrahedral structure with a greater binding energy.

关键词： Li5 cluster formation mechanism binding energy

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Syntheses and Antiproliferative Activities of Novel Diarylthiosemicarbazide Derivatives

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Chemical Research in Chinese Universities 2013年第1期29卷 62-66页

作者： ZHAI Xin HE Ying yang Zhen GONG ping Key Laboratory of Structure-Based Drug Design & Discovery Ministry of Education School of Pharmaceutical Engineering Shenyang Pharmaceutical University Shenyang 110016 P. R. China

A series of novel N-methylpicolinamide-moiety containing diarylthiosemicarbazide derivatives was prepared and evaluated for their in vitro antiproliferative activity against three cancer cell lines（human alveolar epithelial cell A549, human lung cancer cell H460 and human colorectal cancer cell HT-29） by 3-（4,5-dimethyl）thiazolyldiphenyltetrazoliumromide（MTT） assay. Six compounds（Tb--7g） with halogen substituents exhibited preferable cytotoxicity against one or more cell lines in a low micromolar range. Especially, the most promising compound 7g exhibited remarkable antiproliferative activity with the IC50 values of 2.2, 1.8 and 5.2 μmol/L against A549, H460 and HT-29 cell lines respectively, which is comparable to sorafenib.

关键词： Thiosemicarbazide N-methylpicolinamide Antiproliferative activity

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