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14篇 您的检索式:作者名="Xianshan"
    题名 作者 年代 出处 被引量
1Survey of Technologies of Line Commutated Converter Based High Voltage Direct Current Transmission in China显示文摘This paper reviews the applications of line commutated converter based high voltage direct current transmission(LCC-HVDC)technologies in China,with a special focus on UHVDC technology developed in the last 10 years.The paper examines six specific aspects of areas—voltage increase,capacity upgrade,reliability improvement,engineering design innovation,equipment and materials innovation,and the R&D of next step.Subsequent advances in LCC-HVDC technologies in recent years are also discussed.Zehong Liu Jun Yu Xianshan Guo Tao Sun Jin Zhang 2015CSEE Journal of Power and Energy Systems2015,1,2:23
2Genetic Analysis of Carbon Isotope Discrimination and its Relation to Yield in a Wheat Doubled Haploid Population显示文摘Carbon isotope discrimination(△13C) is considered a useful indicator for indirect selection of grain yield(GY) in cereals.Therefore,it is important to evaluate the genetic variation in △13C and its relationship with GY.A doubled haploid(DH) population derived from a cross of two common wheat varieties,Hanxuan 10(H10) and Lumai 14(L14),was phenotyped for △13C in the flag leaf,GY and yield associated traits in two trials contrasted by water availability,specifically,rain-fed and irrigated.Quantitative trait loci(QTLs) were identified by single locus and two locus QTL analyses.QTLs for △13C were located on chromosomes 1A,2B,3B,5A,7A and 7B,and QTLs for other traits on all chromosomes except 1A,4D,5A,5B and 6D.The population selected for high △13C had an increased frequency of QTL for high △13C,GY and number of spikes per plant(NSP) when grown under rain-fed conditions and only for high △13C and NSP when grown under irrigated conditions,which was consistent with agronomic performance of the corresponding trait values in the high △13C progeny;that is,significantly greater than that in the low △13C.Therefore,selection for △13C was beneficial in increasing grain yield in rain-fed environments.Xianshan Wu Xiaoping Chang Ruilian Jing 2011Journal of Integrative Plant Biology2011,53,9:6
3The spontaneous emission of an excited atom embedded in photonic crystals with two atomic position-dependent bands显示文摘The spontaneous emission of an excited atom embedded in photonic crystals with two atomic position-dependent bands is investigated.The distribution of the density of states between two bands depends on the atomic position in a unit cell of the photonic crystal and is described with an atomic position-dependent parameter.The result shows that the emitted field and the time evolution of the upper-level population are affected by the atomic position and the gap width.The spontaneous emission spectrum in free space can be shifted and narrowed with the photonic reservoir and the gap width.HUANG XianShan LIU HaiLian WANG Dong MO XuTao LIU HouTong 2013Science China Chemistry2013,56,3:2
4Study on Deformation Characteristics of Deep Foundation Excavation in Soft-Soil and the Response of Different Retaining Configurations显示文摘Xianshan Liu Shaowei Liu 2012Geotechnical and Geological Engineering2012,,2:1
5Designof Relay Protection Simulation Training System ForHydropower Station 显示文摘LI WENWU LI XIANSHAN WANG CHANGUN 2010Power and Energy EngineeringConference ( APPEEC)2010,,:1
6A multi-agent based framework for the simulation of human and social behaviors during emergency evacuations 显示文摘Pan Xianshan Charles Han Ken Dauber 2007AI & Society (S0951-5666)2007,22,2:1
7Control Strategy Optimization of Voltage Source Converter Connected to Various Types of AC Systems显示文摘Connecting the voltage source converters(VSCs) to various types of AC systems results in different operation characteristics and core problems associated with traditional control strategies. Therefore, it is necessary to optimize the control strategies of the VSCs according to the types of AC systems.For the VSCs connected to islanded renewable power plants, a voltage/frequency(V/f) droop control strategy is proposed to damp fluctuations of AC voltage and frequency in the island,which is vital for bipolar VSC control. In addition, a multibranch impedance equivalent method for renewable power plants is proposed, with which large-scale renewable power plants can be modeled accurately in the frequency domain to prevent wide-band oscillation. For the VSCs connected to strong AC systems, smart AC voltage and coordinated frequency transient control strategies are proposed, which can improve AC system transient stability. For the VSCs connected to weak AC systems, the relationship between the system stability and strength is analyzed, and then the control strategy of inner-loop control parameter optimization and outer-loop power limiting(if necessary) is proposed to improve the stability of the allied system. The proposed strategies are verified by both software simulation and field commissioning.Zehong Liu Senior Member Xianshan Guo 2021Journal of Modern Power Systems and Clean Energy2021,9,1:1
8QTL mapping for developmental behavior of plant height in wheat ( Triticum aestivum L.)显示文摘Zhenghang Wang Xianshan Wu Qian Ren Xiaoping Chang Runzhi Li Ruilian Jing 2010Euphytica2010,,3:1
9QTL mapping for developmental behavior of plant height in wheat (Triticum aestivum L.)显示文摘Zhenghang Wang Xianshan Wu Qian Ren Xiaoping Chang Runzhi Li Ruilian Jing 2010Euphytica2010,,3:1
10Mercury enrichment in Brassica napus in response to elevated atmospheric mercury concentrations显示文摘响应在强奸(Brassica 马来麝) 的机关的提高的大气的水银集中的水银丰富用一个开的最高的房间忿恨实验被调查,土壤水银充实耕作实验。结果显示在叶子和茎的水银集中在水银的不同集中下面显示出一个重要变化在大气并且当在根,种子和种子上衣的水银的集中没在不同大气的水银集中下面显示出重要变化时,玷污实验。用实验建立的功能关系,结果因为在强奸领域生物资源的大气的水银来源证明大气的来源在强奸叶子说明了至少 81.81%of 水银并且在茎的 32.29% 水银。因此,水银在未葬生物资源主要源于大气的水银的吸收。Chunhao Dai Pufeng Qin Zhangwei Wang Jian Chen Xianshan Zhang Si Luo 2017Frontiers of Environmental Science & Engineering2017,11,1:1
11Numerical simulation-based correction of relative permeability hysteresis in water-invaded underground gas storage during multi-cycle injection and production显示文摘By conducting relative permeability experiments of multi-cycle gas-water displacement and imbibition on natural cores,we discuss relative permeability hysteresis effect in underground gas storage during multi-cycle injection and production.A correction method for relative permeability hysteresis in numerical simulation of water-invaded gas storage has been worked out using the Carlson and Killough models.A geologic model of water-invaded sandstone gas storage with medium-low permeability is built to investigate the impacts of relative permeability hysteresis on fluid distribution and production performance during multi-cycle injection and production of the gas storage.The study shows that relative permeability hysteresis effect occurs during high-speed injection and production in gas storage converted from water-invaded gas reservoir,and leads to increase of gas-water transition zone width and thickness,shrinkage of the area of high-efficiency gas storage,and decrease of the peak value variation of pore volume containing gas,and then reduces the storage capacity,working gas volume,and high-efficiency operation span of the gas storage.Numerical simulations exhibit large prediction errors of performance indexes if this hysteresis effect is not considered.Killough and Carlson methods can be used to correct the relative permeability hysteresis effect in water-invaded underground gas storage to improve the prediction accuracy.The Killough method has better adaptability to the example model.ZHU Sinan SUN Junchang WEI Guoqi ZHENG Dewen WANG Jieming SHI Lei LIU Xianshan 2021Petroleum Exploration and Development2021,48,1:0
12Research on Power Consumption Anomaly Detection Based on Fuzzy Clustering and Trend Judgment显示文摘Among the end-users of the power grid,especially in the rural power grid,there are a large number of users and the situation is complex.In this complex situation,there are more leakage caused by insulation damage and a small number of users stealing electricity.Maintenance staff will take a long time to determine the location of the abnormal user meter box.In view of this situation,themethod of subjective fuzzy clustering and quartile difference is adopted to determine the partition threshold.The power consumption data of end-users are divided into three regions:high,normal and low,which can be used to screen users in the area of abnormal power consumption.Then the trend judgment method is used to further accurately screen to improve the accuracy and reduce the number of users in the abnormal range.Finally according to abnormal power consumption auxiliary locate abnormal electricity users list box.Then the simulation environment is set to verify the application of membership fuzzy clustering and trend judgment in power consumption data partition.Wei Xiong Xianshan Li Yu Zou Shiwei Su Li Zhi 2022Energy Engineering2022,119,2:0
13An analysis method of injection and production dynamic transient flow in a gas field storage facility显示文摘A dynamic transient flow analysis method considering complex factors such as the cyclic injection and production history in a gas field storage facility was established in view of the limitations of the existing methods for transient flow analysis and the characteristics of the injection-production operation of strongly heterogeneous gas reservoirs, and the corresponding theoretical charts were drawn. In addition, an injection-production dynamic transient flow analysis model named 'three points and two stages' suitable for an underground gas storage(UGS) well with alternate working conditions was proposed. The 'three points' refer to three time points during cyclic injection and production, namely, the starting point of gas injection for UGS construction, the beginning and ending points of the injection-production analysis stage;and the 'two stages' refer to historical flow stage and injection-production analysis stage. The study shows that the dimensionless pseudo-pressure and dimensionless pseudo-pressure integral curves of UGS well flex downward in the early stage of the injection and production process, and the dimensionless pseudo-pressure integral derivative curve is convex during the gas production period and concave during the gas injection period, and the curves under different flow histories have atypical features. The new method present in this paper can analyze transient flow of UGS accurately. The application of this method to typical wells in Hutubi gas storage shows that the new method can fit the pressure history accurately, and obtain reliable parameters and results.WANG Jieming LI Chun SUN Junchang TANG Ligen ZHONG Rong LIU Xianshan ZHENG Shaojing 2022Petroleum Exploration and Development2022,49,1:0
14Suppression and Acceleration Effects of Measurements on A-type Atomic Decay in Anisotropic Photonic Crystals显示文摘Yaping Yang Xianshan Huang Shi-Yao Zhu 2006量子光学学报2006,12,B08:0
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