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46篇 您的检索式:作者名="HE GuangYu"
    题名 作者 年代 出处 被引量
1Corrosion mechanism investigation of TiN/Ti coating and TC4 alloy for aircraft compressor application显示文摘It is imperative to develop multifunctional erosion and corrosion resistant coatings for compressor blades of aircraft engines in harsh environment.PVD(Physical Vapor Deposition)technology has the advances in processing erosion-resistant coatings;however,the performance of PVD coatings to combat corrosion depends on various coating defects.Determining and comparing the corrosion performances of PVD TiN/Ti coating and uncoated TC4 alloy was the main objective of present work.The 960 h salt spray corrosion and 116 h hot corrosion tests were conducted to simulate the grounding and working environments of the aircraft compressors.The corrosion mechanisms due to the coating defects such as pinhole,columnar boundary and large grain were analyzed based on the OM,Confocal microscope,electrochemical measurements,SEM,XRD and EDS results.Owing to the disordered state associated with the columnar boundary and the coating defect,nitrogen could be easily replaced by oxygen in the hot corrosion process,these structures were channels for fast diffusion of oxygen.Moreover,the Gibbs energy changes of Ti oxidation and TiN oxidation were thermodynamically calculated according to the working condition of aircraft compressors,and considerable research effort was focused on mapping out the phase diagram of Ti,TiN and high pressure gases.The findings of this research can provide insights into developing multifunctional coatings for future aircraft engines.Zhiping SUN Guangyu HE Qingjie MENG Yuqin LI Xiaodong TIAN 2020Chinese Journal of Aeronautics2020,33,6:11
2Multifunctional lymph-targeted platform based Mn@mSiO2 nanocomposites: Combining PFOB dual-mode imaging and DOX for cancer diagnose treatment on for and显示文摘Tian Liu Guangyu Wu Jiejun Cheng Qing Lu Yanjie Yao Zhenjing Liu Dongchen Zhu Juan Zhou Jianrong Xu Jun Zhu Dannong He 2016Nano Research2016,9,2:11
3Advanced EMS and its trial operation in Shanghai power system显示文摘To meet the demand of high stability,high quality,and low losses of power systems,the advanced energy management system (AEMS) is established and revealed in this bulletin,which has been put into trial operation in Shanghai power system for almost half a year. The AEMS is novel from all aspects covering idea,theory,method,software,and engineering. The essence of AEMS is exercising the hybrid automatic control theory and technology to realize multi-objective optimal closed-loop control of power systems. Based on an 'event-driven' strategy,the AEMS transforms multi-objective optimal control problems into event identification and elimination by defining the unsatisfactory states of a power system as events. This bulletin concisely presents the theory and main advantages of AEMS,as well as its implementation in Shanghai power system.LU Qiang HE GuangYu MEI ShengWei SUN YingYun RUAN QianTu WANG Wei ZHANG WangJun YU XuFeng 2008Science China(Technological Sciences)2008,51,2:9
4A review on ignition mechanisms and characteristics of magnesium alloys显示文摘Magnesium alloys have become more attractive because of their low density and electromagnetic shielding effectiveness in the aerospace industry.However,some unpredictable situation may lead to the ignition of magnesium alloys.In this review,the thermodynamic conditions and transfer processes of magnesium alloys ignition are analyzed from the point of mechanisms.The criteria of ignition are emphasized.In addition,ignitability and flammability test systems are compared.And a more suitable method to assess the potential ignition and flammability risks of magnesium alloys in extreme environments is recommended.Furthermore,the ignition characteristics of magnesium alloys are discussed in detail.It was found that the ignition of magnesium alloys is a complex process determined by internal properties such as thermo-physical properties,oxide film properties,chemical compositions and geometrical parameters,as well as the external environment such as gas species,oxygen concentration and oxygen pressure.Ignition temperature is not physical constants of materials.It is not simply assumed that ignition may occur when the temperature of Mg alloys reaches a certain ignition point.Finally,the unsolved issues in the ignition of magnesium alloys are pointed out and the future investigation are suggested for improving the safety and reliability of magnesium alloys in the aerospace applications.Dong Han Jin Zhang Jinfeng Huang Yong Lian Guangyu He 2020Journal of Magnesium and Alloys2020,8,2:7
5Development and Analysis of an Electrically Actuated Lower Extremity Assistive Exoskeleton显示文摘一架电子上激活的更低的极限皮骨骼被开发,在哪个当有弹性的元素连接的另外的关节消极地被激活时,仅仅膝关节活跃地被激活。这份报纸描述批评设计标准并且介绍设计的进程和使活动系统的计算。一台灵活物理 Human-Robot-Interaction (pHRI ) 测量设备被设计并且适用检测人的运动,它包括纳入连接手铐的内部表面的二个力量传感器和二个气囊。联机适应 pHRI 最小化控制策略被建议并且实现了驱使机器的皮骨骼系统跟随人的手足的运动轨道。测量 pHRI 信息被变化加权的一般水准(VWA ) 方法熔化。pHRI 和控制转矩的吝啬的方形的价值(MSV ) 被利用评估皮骨骼的表演。改进舒适水平和还原剂精力消费,当控制法律被设计时,严肃赔偿被考虑。最后,实际实验在健康用户上被执行。试验性的结果证明建议系统能帮助人走,构画出的控制策略有效、有效。Yi Long Zhijiang Du Chaofeng Chen Weidong Wang Long He Xiwang Mao Guoqiang Xu Guangyu Zhao Xiaoqi Li Wei Dong 2017Journal of Bionic Engineering2017,14,2:7
6A draft sequence of the rice (Oryza sativa ssp. indica) genome显示文摘The sequence of the rice genome holds fundamental information for its biology, including physiology, genetics, development, and evolution, as well as information on many beneficial phenotypes of economic significance. Using a 'whole genome shotgun' approach, we have pro-duced a draft rice genome sequence of Oryza sativa ssp. in-dica, the major crop rice subspecies in China and many other regions of Asia. The draft genome sequence is constructed from over 4.3 million successful sequencing traces with an accumulative total length of 2214.9 Mb. The initial assembly of the non-redundant sequences reached 409.76 Mb in length, based on 3.30 million successful sequencing traces with a total length of 1797.4 Mb from an indica variant cultivar 93-11, giving an estimated coverage of 95.29% of the rice genome with an average base accuracy of higher than 99%. The coverage of the draft sequence, the randomness of the sequence distribution, and the consistency of BIG-ASSEM-BLER, a custom-designed software packageYU Jun, HU Songnian, WANG Jun,LI Songgang WONG Ka-Shu Gane, LIU Bin,DENG Yajun, DAI Li, ZHOU Yan,ZHANG Xiuqing, CAO Mengliang, LIU Jing,SUN Jiandong , TANG Jiabin, CHEN Yanjiong,HUANG Xiaobing, LIN Wei, YE Chen, TONG Wei,CONG Lijuan, GENG Jianing, HAN Yujun, LI Lin,LI Wei, HU Guangqiang, HUANG Xiangang,LI Wenjie, LI Jian, LIU Zhanwei, LI Long,LIU Jianping, Ql Qiuhui, LIU Jinsong, LI Li,WANG Xuegang, LU Hong, WU Tingling,ZHU Miao, Nl Peixiang, HAN Hua, DONG Wei,REN Xiaoyu, FENG Xiaoli, GUI Peng,LI Xianran, WANG Hao, XU Xin, ZHAI Wenxue,XU Zhao, ZHANG Jinsong, HE Sijie,ZHANG Jianguo, XU Jichen, ZHANG Kunlin,ZHENG Xianwu, DONG Jianhai, ZENG Wanyong,TAO Lin, CHEN Xuewei, HE Jun, LIU Daofeng,TIAN Wei, TIAN Chaoguang, XIA Hongai,LI Gang, GAO Hui, LI Ping, CHEN Wei ,WANG Xudong, ZHANG Yong, HU Jianfei,WANG Jing, LIU Song, YANG Jian,ZHANG Guangyu, XIONG Yuqing, LI Zhijie,MAO Long, ZHOU Chengshu, ZHU Zhen,CHEN Runsheng, HAO Bailin,ZHENG Weimou, CHEN Shouyi, QUO Wei,LI Guojie, LIU Siqi, HUANG Guyang,TAO Ming, WANG Jian, ZHU Lihuang,YUAN Longping& YANG HuanmingBeijing Genomics Institute/Center of Genomics & Bioinformatics, Chinese Academy of Sciences, Beijing 101300, China Hangzhou Genomics Institute/Institute of Bioinformatics of Zhejiang University/Key Laboratory of Bioinformatics of Zhejiang Province, Hangzhou 310007, China Institute of Genetics, Chinese Academy of Sciences, Beijing 100101, China National Hybrid Rice R & D Center, Changsha 410125, China Laboratory of Bioinformatics, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China College of Life Sciences, Peking University, Beijing 100871, China Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 1Q0080, China Digital China Ltd., Beijing 100080, China Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100080, China Medical College, Xi’an Jiaotong University, Xi’an 710061, ChinaThese authors contributed equally to this work.Corresponding author.Corresponden 2001Chinese Science Bulletin2001,46,23:6
7Statistical and frequency analysis of the pressure fluctuation in a fluidized bed of non-spherical particles显示文摘In this paper,the pressure fluctuation in a fluidized bed was measured and processed via standard deviation and power spectrum analysis to investigate the dynamic behavior of the transition from the bubbling to turbulent regime.Two types[Geldart B and D) of non-spherical particles,screened from real bed materials,and their mixture were used as the bed materials.The experiments were conducted in a semiindustrial testing apparatus.The experimental results indicated that the fluidization characteristics of the non-spherical Geldart D particles differed from that of the spherical particles at gas velocities beyond the transition velocity U_c.The standard deviation of the pressure fluctuation measured in the bed increased with the gas velocity,while that measured in the plenum remained constant.Compared to the coarse particles,the fine particles exerted a stronger influence on the dynamic behavior of the fluidized bed and promoted the fluidization regime transition from bubbling toward turbulent.The power spectrum of the pressure fluctuation was calculated using the auto-regressive(AR) model;the hydrodynamics of the fluidized bed were characterized by the major frequency of the power spectrum of the pressure fluctuation.By combining the standard deviation analysis,a new method was proposed to determine the transition velocity U_k via the analysis of the change in the major frequency.The first major frequency was observed to vary within the range of 1.5 to 3 Hz.Honghao He Xiaofeng Lu Wei Shuang Quanhai Wang Yinhu Kang Liyun Yan Xuanyu Ji Guangyu Luo Hai Liu 2014Particuology2014,12,5:6
8Modern power systems control centers:From EMS to AEMS显示文摘Traditional energy management system (EMS) plays an indispensable role in control centers of electric power systems. However, it also has several shortcomings, including lack of real-time closed-loop control, unreliable functional modules, and difficult to exchange data. The electric hybrid control theory (EHCT) has been proposed as an innovative and effective means to overcome these shortcomings. This paper argues that the EHCT provides a theoretical foundation for the advanced energy management system (AEMS) that can achieve multi-objective, near-optimal, and closed-loop control of electric power grids. This paper also discusses the significance for control centers to evolve from the traditional EMS to the AEMS. Furthermore, this paper points out that the traditional EMS can be considered as an integral part of the AEMS and that the AEMS can be built upon the traditional EMS. Thus, the resources that are currently available can be fully utilized to achieve near-optimal and closed-loop control of power system operations.HE GuangYu SUN YingYun RUAN QianTu WANG Wei DONG ShuFeng 2009Science China(Technological Sciences)2009,52,2:5
9Quantitative response of oil sunflower yield to evapotranspiration and soil salinity with saline water irrigation显示文摘Appropriate application of water-salt-crop function model can optimize agricultural water management in regions with declining water supply,such as the Hetao district.Appropriate use of saline water is also based on the effects of irrigation water demand and water quality on crop growth quantitatively.Therefore,oil sunflower growth testing under both water and salt stress was completed from 2013 to 2014.Water salinity levels at 1.7 ds/m,4 ds/m,6 ds/m and 8 ds/m were used in the experiments.Two water deficit levels were reported,60%and 80%of the irrigation quota,which were considered moderate and mild deficit levels,respectively.All treatments were applied in planting the oil sunflower in critical growing periods,namely,floral initiation,anthesis and maturity.Linear,Cobb-Douglas,quadratic and transcendental function models were used to simulate the relative yield,evapotranspiration(ET)and electrical conductivity(EC).The predictive ability and sensitivity of each model were then evaluated.Compared with salt stress,water stress exerted a more significant effect on the oil sunflower yield;the water parameters(a1 and a3)were most sensitive in the water-salt-crop function model.Oil sunflower was most sensitive to water and salt stress during anthesis.The transcendental function generally showed a relatively high sensitivity coefficient and a relatively small statistical error.Therefore,the transcendental function is the most appropriate model for simulating and predicting the yield of oil sunflower irrigated with saline water.Applying the water-salt-crop function model in planting of oil sunflower can help in the development and utilization of saline water in the Hetao district.He Xin Yang Peiling Ren Shumei Li Yunkai Jiang Guangyu Li Lianhao 2016International Journal of Agricultural and Biological Engineering2016,9,2:4
10On engineering implementation of the digital power system显示文摘The narrow definition of the digital power system (DPS) is proposed. The architec- ture, features and key contents of the DPS are presented, which include intelligent dispatching system, hybrid automatic control system and data sharing platform. The successful construction of the DPS can greatly improve the performances of power system operating and dispatching, which mainly reflect a fundamental in- crease of the ability of avoiding catastrophes resulting from blackouts of power supply, a significant improvement of economic efficiency of power system opera- tion, and an improvement of decision efficiency of power system developing. The DPS describes a vision of the development of power system and the way to achieve this vision. At the same time, the paper also proposes the principles of the design and implementation of the DPS.HE GuangYu SUN YingYu CHANG NaiChao MEI ShengWei 2008Science China(Technological Sciences)2008,51,11:4
11Seasonal variation of gut Cyanophyta contents and liver GST expression of mud carp(Cirrhina molitorella) and Nile tilapia(Oreochromis niloticus) in the tropical Xiangang Reservoir(Huizhou,China)显示文摘Liver glutathione S-transferase(GST) plays a major role in the detoxification of microcystins(MCs) via conjugation to glutathione(GSH).We evaluated the relationship between seasonal variation in fish gut contents and the expression of GST isoforms in mud carp(Cirrhina molitorella) and Nile tilapia(Oreochromis niloticus).We quantified the abundance and diversity of plankton in the water column and foregut of mud carp and Nile tilapia in the tropical Xiangang Reservoir between October 2007 and July 2008.The mRNA expression of 7 liver GST isoforms was determined by real-time RT-PCR.The gut contents of both species were dependent on the amount and type of phytoplankton and zooplankton in the water.The expression of liver GST genes in Nile tilapia and mud carp was positively and negatively correlated,respectively,with the abundance of toxic cyanobacteria in the fore-gut.The expression of liver GST mRNA was correlated to the abundance of toxic cyanobacteria in the gut contents of both species,suggesting that mRNA expression of GST isoforms could be used as a biomarker in Nile tilapia and mud carp to monitor cyanobacteria blooms in reservoirs.CHENG WeiXuan LIANG XuFang SHEN Dan ZHOU Qiong HE Yan HE Shan LI GuangYu 2012Chinese Science Bulletin2012,57,6:3
12Characterization and Trading of Energy Level and Energy Shift Considering Virtual Power Plant显示文摘The capability of shifting the electricity generation or consumption to proper time of the day,also defined as energy shift(ES),is the key factor to ensure the power balance,especially under high penetration of variable renewable energy(VRE).However,the ES is not characterized and traded as an independent product in current market mechanisms.In this letter,the marginal utility of an ES is assessed and leveraged to characterize the effective ES,while a novel market scheme is proposed considering the trading of both ES and energy level(EL).The proposed scheme can well integrate ES producers such as virtual power plants that cannot be rewarded sufficiently to actively participate in the current market because they are principally labeled as EL consumers.Finally,the novel concept and mechanism are illustrated by a numerical study and verified to outperform the existing price schemes on integrating the ES resources and VRE.Shuai Fan Jucheng Xiao Zuyi Li Guangyu He 2022Journal of Modern Power Systems and Clean Energy2022,10,6:3
13Carbonized wood with ordered channels decorated by NiCo_(2)O_(4) for lightweight and high-performance microwave absorber显示文摘Wood-derived carbon has a 3D porous framework composed of through channels along the growth direction,which is a suitable matrix for preparing electromagnetic wave(EMW)absorbing materials with low cost,light weight,and environmental friendliness.Herein,the carbonized wood decorated by short cone-like NiCo_(2)O_(4)(NiCo_(2)O_(4)@CW)with highly ordered straight-channel architecture was successfully manufactured through a facile calcination procedure.The horizontal arrangement of the through channels of NiCo_(2)O_(4)@CW(H-NiCo_(2)O_(4)@CW)exhibits a strong reflection loss value of-64.0 dB at 10.72 GHz with a thickness of 3.62 mm and a low filling ratio of 26 wt%(with the density of 0.98 g-cnf3),and the effective absorption bandwidth(EAB)is 8.08 GHz(9.92-18.0 GHz)at the thickness of 3.2 mm.The excellent microwave absorption(MA)property was ascribed to the ordered-channel structure with abundant interfaces and defects from NiCo_(2)O_(4)@CW,which could promote the interfacial polarization and dipole polarization.What is more,this advantageous structure increased the multiple reflections and scattering.Finite element analysis(FEA)simulation is carried out to detect the interaction between the prepared material and EMW when the ordered channels are arranged in different directions.This research provides a low-cost,sustainable,and environmentally friendly strategy for using carbonized wood to fabricate microwave absorbers with strong attenuation capabilities and light weight.Guangyu QIN Xiaoxiao HUANG Xu YAN Yunfei HE Yuhao LIU Long XIA Bo ZHONG 2022Journal of Advanced Ceramics2022,11,1:2
14Optimal Monetary Policy in China显示文摘用结构的向量 autoregression 模型,我们从宏观经济的变量估计钱的政策的当前的回答到同时期的震动。我们的调查结果显示人们中国的银行对通货膨胀和产量变化作出回应,但是没从 1997 年 1 月在时期期间反应到财产价格变化到 2010 年 3 月。对外长的震动的最佳的钱的回答也被检验。当在他们的安全地区把输出作为生长和通货膨胀时,使用财产价格提出钱的政策不帮助在降低产量生长和通货膨胀的轻快改进钱的权威的表演,这被揭示当在他们的安全地区把输出作为生长和通货膨胀时。在反应到外部震动的钱的政策和财政政策的有效性也被讨论。Ping He Guangyu Nie Guanglong Wang Xiang Zhang 2011China & World Economy2011,19,1:2
15Analysis of Dynamic Appliance Flexibility Considering User Behavior via Non-intrusive Load Monitoring and Deep User Modeling显示文摘The research on non-intrusive load monitoring(NILM)and the growing deployment of home energy manage-ment system(HEMS)have made it possible for households to have a detailed understanding of their power usage and to make appliances participate in demand response(DR)programs.Appliance flexibility analysis helps the HEMS dispatching appli-ances to participate in DR programs without violating user’s comfort level.In this paper,a dynamic appliance flexibility analysis approach using the smart meter data is presented.In the training phase,the smart meter data is preprocessed by NILM to obtain user’s appliances usage behaviors,which is used to train the user model.During operation,the NILM is used to infer recent appliances usage behaviors,and then the user model predicts user’s appliances usage behaviors in the DR period considering long-term behaviors dependences,correlations between appliances and temporal information.The flexibility of each appliance is calculated based on the appliance characteristics as well as the predicted user’s appliances usage behaviors caused by the control of the appliance.The HEMS can choose the appliance with high flexibility to participate in the DR programs.The case study demonstrates the performance of the user model and illustrates how the appliance flexibility analysis is performed using a real-world case.Shaopeng Zhai Huan Zhou Zhihua Wang Guangyu He 2020CSEE Journal of Power and Energy Systems2020,6,1:2
16Modeling liquid water effects in the gas diffusion and catalyst layers of the cathode of a PEM fuel cell 显示文摘Lin Guangyu He Wensheng Nguyen T V 2004J Electrochem Soc2004,151,12:1
17Transcriptional responses of mu-, pi- and omega-class glutathione S-transferase genes in the hepatopancreas of Cipangopaludina cahayensis exposed to microcystin-LR显示文摘The glutathione S-transferases(GSTs)play important roles in detoxification of microcystins(MCs),but the responses of GSTs to MC-LR have not been well characterized in freshwater gastropod,Cipangopaludina cahayensis.In the present study,we cloned full-length cDNAs of mu-and pi-class GSTs(GSTM and GSTP)and partial cDNA of omega-class GST(GSTO),and determined the transcriptional responses of the three GST genes to different concentrations of MC-LR(0,1,10 and 100 lg/L)in C.cahayensis.The full-length cDNAs of GSTM and GSTP of C.cahayensis were 813 and 820 bp,containing an open reading frame(ORF)of 648 bp(encoding 215 amino acids)and 624 bp(encoding 207 amino acids),respectively.The mRNA expression of GSTM and GSTO significantly decreased after exposure to 10 lg/L MC-LR,and the mRNA expression of GSTP significantly decreased after100 lg/L MC-LR exposure.This might contribute to the detoxication of MCs in C.cahayensis,which is consistent with its sedentary life and filter-feeder status.The mRNA expression of the three GST isoforms in C.cahayensis could be used as biomarkers for water contamination.Ling Li Xu-Fang Liang Shan He Guangyu Li Zhengyong Wen Wenjing Cai Dan Shen 2014Chinese Science Bulletin2014,59,25:1
18A quantitative study on detection and estimation of weak signals by using chaotic Duffing oscillators显示文摘Wang Guangyu He Sailing 2003IEEE Trans on Circuits and Systems-Ⅰ:Fundamental Theory and applications2003,50,7:1
19Deforming TC6 titanium alloys at ultrahigh strain rates during multiple laser shock peening显示文摘Liucheng Zhou Yinghong Li Weifeng He Guangyu He Xiangfan Nie Donglin Chen Zhilin Lai Zhibin An 2013Materials Science & Engineering A2013,,:1
20A new scheme for guaranteed state estimation of power system显示文摘WANG Bin HE Guangyu LIU Kaicheng 2013IEEE Trans on Power Systems2013,28,4:1
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