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14篇 您的检索式:作者名="Hongjun Yong"
    题名 作者 年代 出处 被引量
1Allocation Methodology of Multiple SVCs Considering Operation Scheme Changing显示文摘针对多静止同步补偿器(staticvarcompensator,SVC)对系统共同影响的问题,提出计及运行方式变化的多SVC布点方法。利用规范形分析,基于摄动方程2阶解析解信息建立拓展静态电压稳定边界的多SVC布点分析方法。首先根据静态电压稳定分析方法,确定系统危险运行方式(即距离系统电压崩溃最近的运行方式1;然后在该运行方式下,利用规范形方法对系统进行小扰动电压稳定分析,求出所有负荷节点的电压振荡曲线解析解;最后利用2阶解析解所给出的小扰动1阶振荡幅值和2阶振荡幅值信息,以多SVC布点多种方案对系统降低小扰动幅值的贡献为指标,给出多SVC布点结果。所提方法应用于IEEE30节点系统,试验结果表明,该方法相对于不考虑多点共同影响的多SVC布点方式,其静态电压稳定边界的拓展效果更好。XIONG Haoqing TANG Yong ZHANG Xiaohua MENG Yuanjing LIU Yuexin FU Hongjun SUN Huadong YI Jun XIONG Chuanping 2012中国电机工程学报2012,32,13:6
2Relationship between thermal anomalies in Tibetan Plateau and summer dust storm frequency over Tarim Basin,China显示文摘The dust storm is the most important and frequent meteorological disaster over Tarim Basin,which causes huge damages on local social economics.How to predict the springtime and summertime dust storm occurrence has become a hot issue for meteorologists.This paper employed the data of dust storm frequency and 10-m wind velocity at 35 stations over Tarim Basin and the reanalysis data from the National Center for Environmental Prediction and the National Center for Atmospheric Research(NCEP/NCAR) during 1961-2007 to study the relationship between dust storm frequency(DSF) in summer over Tarim Basin and the thermal anomalies in Tibetan Plateau in May by using the statistical methods,such as Empirical Orthogonal Function(EOF),correlation and binomial moving average.The results show when negative anomalies in Tibetan Plateau and positive anomalies in its southern region are present along 30°N(the second mode of surface temperature anomalies by EOF decomposition) in May,the time coefficient(PC2) plays an important role in summer DSF variation and has a close relation with the summer DSF at both inter-annual and decadal time scales.When negative anomalies in Tibetan Plateau and positive anomalies are present in its southern region(PC2 in positive phase),there is an anomalous anticyclone in North China,which weakens the northwest wind and is not beneficial for cold air moving from high latitude to the Tarim Basin,and the circulation pattern is hard to result in dust storm weather.Furthermore,the sea level pressure(SLP) increased over Tarim Basin and the direction of SLP gradient reversed,which resulted in the 10-m wind velocity slowing down,so the DSF decreased.From above all,it can be conclude that the thermal anomalies in Tibetan Plateau in May has important effects on the summertime dust storm frequency over Tarim Basin and the PC2 can be used as a prediction factor for the summertime dust storm occurrence.Yong ZHAO HongJun LI AnNing HUANG Qing HE Wen HUO MinZhong WANG 2013Journal of Arid Land2013,5,1:4
3Enhanced Photocatalytic Activity of ZnO/CuO Nanocomposites Synthesized by Hydrothermal Method显示文摘In this paper, we have demonstrated a facile and low-cost synthesis of the ZnO/CuO nanocomposites by two-step hydrothermal methods. The photocatalytic properties of the as-synthesized ZnO/CuO nanocomposites have been evaluated by the photodegradation of methylene blue(MB) and methyleneorange(MO) under UV irradiation. Experimental results show that MB and MO can be degraded completely within 15 and 25 min by the ZnO/CuO nanocomposites and its photodegradation rate is 6 times faster than that of pure ZnO. This enhanced photocatalytic activity can be ascribed to the low recombination probability of photo-induced carriers due to the efficient charge transfer in the nanocomposites. The as-synthesized ZnO/CuO nanocomposite may be a promising candidate for dye photodegradation of wastewaters.Tongqin Chang Zijiong Li Gaoqian Yun Yong Jia Hongjun Yang 2013Nano-Micro Letters2013,5,3:4
4Trends and abrupt changes in surface vapor content over Tarim Basin during the last 50 years显示文摘The surface vapor content has a close correlation with the generation of precipitation. Based on the atmospheric circulation data and surface vapor content data from 37 weather stations across the Tarim Basin during 1961 2010, the paper analyzed the vapor variation trend, period, abrupt changes and their causes. The results show that the increase trend of surface vapor content over the Tarim Basin mostly conforms with the average trend coefficient of 0.48. There were 3 centers displaying a trend of high vapor increase and 3 centers displaying a low vapor increase. These centers were distributed in strips and blocks across the basin from northeast to southwest. Notable inter-decadal variations in annual and seasonal vapor contents occurred in the Tarim Basin during the 50 years of the study period, with more vapor after the mid-1980s and less vapor in the 1960s and the 1970s. The significant increase in vapor content in the 50 year period occurred mostly in the 1980s and the 1990s. The increasing trend across the four seasons was strongest in summer, reaching 0.43, and weakest in spring. Great variations existed between the spring trend and the annual, summer, autumn and winter trends. During the 50-year study period, there are distinguishable periods of 4-6 years and 8-10 years in which the annual and seasonal vapor contents varied alternately between low and high concentrations. The annual vapor content and that of the four individual seasons all changed abruptly in about the mid-1980s (α<0.05). The west wind circulation, Tibetan Plateau circulation and the annual mean temperatures of the Tarim Basin are the main factors that influenced the surface vapor content over the study area, of which the Tibetan Plateau circulation may be the most important one.HongJun LI WeiYi MAO Yong ZHAO MinZhong WANG Wen HUO 2012Journal of Arid Land2012,4,3:3
5The atmospheric circulation patterns influencing the frequency of spring sand-dust storms in the Tarim Basin显示文摘Using NCEP/NCAR reanalysis data and the sand-storm frequency data from 37 weather stations in the Tarim Basin for the period1961–2009,the relationship between the frequency of spring sandstorms in the Tarim Basin and the associated atmospheric circulation patterns is analyzed in this study.We found significantly negative correlations between sandstorm frequency and the 500-hPa geopotential height over the Paris Basin and midwestern Mongolia,while there were positive correlations over the Ural River region.The rising of the 500-hPa geopotential height in midwestern Mongolia and its falling over the Ural region correspond to a weakening of the large-scale wave patterns in the Eurasian region,which directly causes the frequency of the sand-dust storms in the Tarim Basin to decline.Also,the abrupt decline in the spring sandstorm frequency in the Tarim Basin observed in the last half-century is associated with profound changes in the atmospheric circulation in these key regions.At the interannual scale,the strengthened cyclonic atmospheric circulation patterns in the western part of Mongolia and the anticyclonic patterns over the East European plains at 500-hPa geopotential height,are responsible for frequent sandstorm occurrences in the Tarim Basin.HongJun Li XinHua Yang Yong Zhao MinZhong Wang Wen Huo 2014Research in Cold and Arid Regions2014,6,2:2
6Laparoscopic common bile duct exploration: choledochotomy versus transcystic approach? 显示文摘Hongjun H Yong J Baoqiang W 2015Surg Laparosc Endosc Percutan Tech2015,25,3:1
7Laparoscopic common bile ductexploration: choledochotomy versus transcystic approach显示文摘Hongjun H Yong J Baoqiang W 2015SurgLaparosc Endosc Percutan Tech2015,25,3:1
8Influence of dynamic unbalance of wheelsets on the dynamic performance of high-speed cars显示文摘With further increasing in running speed of newer high-speed EMUs(electric multiple units),higher demand for wheelset dynamic balance is required.In order to study the influence of the dynamic unbalance of wheelset on the stability,ride quality,and curving performance for a high-speed car,a detailed dynamic model of a high-speed EMU car is established using the software SIMPACK.The analysis results indicate that the dynamic unbalance of the wheelset significantly influences the dynamic performance of the high-speed car.The increase in dynamic unbalance of the wheelset will decrease the hunting critical speed,worsen the vertical ride quality,and increase the wheelset lateral force,derailment coefficient,and wheel unloading ratio.Therefore,in order to improve the stability,ride quality,and running safety of high-speed car,the values of dynamic unbalance of wheelset should be strictly controlled in manufacturing,and periodically monitored in operation.Yong WANG Hongjun KANG Xiaowen SONG Yaru LIANG 2011Journal of Modern Transportation2011,19,3:1
9Laparoscopic Common Bile Duct Exploration:Choledochotomy Versus Transcystic Approach? 显示文摘Hongjun H Yong J Baoqiang W 2015Surg LaparoscEndosc Percutan Tech2015,25,3:1
10Reversible potassium storage in ultrafine CF_(x): A superior cathode material for potassium batteries and its mechanism显示文摘Current studies of cathodes for potassium batteries(PBs) mainly focus on the intercalation-type materials.The conversion-type materials that possess much higher theoretical capacities are rarely discussed in previous literatures.In this work,carbon fluoride(CF_x) is reported as a high capacity conversion-type cathode for PBs for the first time.The material delivers a remarkable discharge capacity of>250 mAh g^(-1) with mid-voltage of 2.6 V at 20 mA g^(-1).Moreover,a highly reversible capacity of around 95 mAh g^(-1) is achieved at 125 mA g^(-1) and maintained for 900 cycles,demonstrating its excellent cycling stability.The mechanism of this highly reversible conversion reaction is further investigated by nuclear magnetic resonance spectra,X-ray diffraction,and transmission electron microscopy studies.According to the analyses,the C-F bond in the cycled material is different from that in the pristine state,which presents relatively higher reversibility.This finding offers important insights for further improving the performance of the CF_x.This work not only demonstrates the CF_x as a high performance cathode for PBs,but also paves a new avenue of exploring conversion-type cathodes for high energy density PBs.Hongjun Yue Huixin Chen Chen Zhao Zhiming Zheng Ke Zhou Qjaobao Zhang Guiming Zhong Can-Zhong Lu Yong Yang 2021Journal of Energy Chemistry2021,30,2:0
11Revealing alkali metal ions transport mechanism in the atomic channels of Au@a-MnO_(2)显示文摘Understanding alkali metal ions’(e.g.,Li^(+)/Na^(+)/K^(+))transport mechanism is challenging but critical to improving the performance of alkali metal batteries.Herein using a-MnO_(2)nanowires as cathodes,the transport kinetics of Li^(+)/Na^(+)/K^(+)in the 2×2 channels of a-MnO_(2)with a growth direction of[001]is revealed.We show that ion radius plays a decisive role in determining the ion transport and electrochemistry.Regardless of the ion radii,Li^(+)/Na^(+)/K^(+)can all go through the 2×2 channels of a-MnO_(2),generating large stress and causing channel merging or opening.However,smaller ions such as Li^(+)and Na^(+)cannot only transport along the[001]direction but also migrate along the<110>direction to the nanowire surface;for large ion such as K^(+),diffusion along the<110>direction is prohibited.The different ion transport behavior has grand consequences in the electrochemistry of metal oxygen batteries(MOBs).For Li-O_(2)battery,Li^(+)transports uniformly to the nanowire surface,forming a uniform layer of oxide;Na^(+)also transports to the nanowire surface but may be clogged locally due to its larger radius,therefore sporadic pearl-like oxides form on the nanowire surface;K^(+)cannot transport to the nanowire surface due to its large radius,instead,it breaks the nanowire locally,causing local deposition of potassium oxides.The study provides atomic scale understanding of the alkali metal ion transport mechanism which may be harnessed to improve the performance of MOBs.Jingzhao Chen Yong Su Hongjun Ye Yushu Tang Jitong Yan Zhiying Gao Dingding Zhu Jingming Yao Xuedong Zhang Tingting Yang Baiyu Guo Hui Li Qiushi Dai Yali Liang Jun Ma Bo Wang Haiming Sun Qiunan Liu Jing Wang Congcong Du Liqiang Zhang Yongfu Tang Jianyu Huang 2023Journal of Energy Chemistry2023,,7:0
12An Efficient and Green One-pot Synthesis of 12-Aryl-8,9,10,12-tetra hyd robenzo[a]xanthen-11 -one Deriva- tives Promoted by Sulfamic Acid in [BMIM]BF4 Ionic Liquid显示文摘为新奇 12-aryl-8,9,10,12-tetrahydrobenzo 的合成的一个有效、绿的过程[一] xanthen-11-one 衍生物在离子的液体 1-n-butyl-3-methylimidazolium tetrafluoroborate 面对 sulfamic 酸(NH2SO3H ) 通过 2 萘粉, arylaldehyde 和 5,5-dimethyl-cyclohexane-1,3-dione 的一个壶冷凝作用被描述了([BMIM ] BF4 ) 。这些反应在短反应时间下面继续好收益。而且,绿催化系统能被再循环没有在收益和反应率的减少的特定的时间。Zang,Hongjun Zhang,Yong Cheng,Bowen Zhang,Weiwei Xu,Xianlin Ren,Yuanlin 2012Chinese Journal of Chemistry2012,30,2:0
13Genomic prediction of yield performance among single-cross maize hybrids using a partial diallel cross design显示文摘Genomic prediction(GP)in plant breeding has the potential to predict and identify the best-performing hybrids based on the genotypes of their parental lines.In a GP experiment,34 elite inbred lines were selected to make 285 single-cross hybrids in a partial-diallel cross design.These lines represented a mini-core collection of Chinese maize germplasm and comprised 18 inbred lines from the Stiff Stalk heterotic group and 16 inbred lines from the Non-Stiff Stalk heterotic group.The parents were genotyped by sequencing and the 285 hybrids were phenotyped for nine yield and yield-related traits at two locations in the summer sowing area(SUS)and three locations in the spring sowing area(SPS)in the main maizeproducing regions of China.Multiple GP models were employed to assess the accuracy of trait prediction in the hybrids.By ten-fold cross-validation,the prediction accuracies of yield performance of the hybrids estimated by the genomic best linear unbiased prediction(GBLUP)model in SUS and SPS were 0.51 and 0.46,respectively.The prediction accuracies of the remaining yield-related traits estimated with GBLUP ranged from 0.49 to 0.86 and from 0.53 to 0.89 in SUS and SPS,respectively.When additive,dominance,epistasis effects,genotype-by-environment interaction,and multi-trait effects were incorporated into the prediction model,the prediction accuracy of hybrid yield performance was improved.The ratio of training to testing population and size of training population optimal for yield prediction were determined.Multiple prediction models can improve prediction accuracy in hybrid breeding.Ping Luo Houwen Wang Zhiyong Ni Ruisi Yang Fei Wang Hongjun Yong Lin Zhang Zhiqiang Zhou Wei Song Mingshun Li Jie Yang Jianfeng Weng Zhaodong Meng Degui Zhang Jienan Han Yong Chen Runze Zhang Liwei Wang Meng Zhao Wenwei Gao Xiaoyu Chen Wenjie Li Zhuanfang Hao Junjie Fu Xuecai Zhang Xinhai Li 2023The Crop Journal2023,11,6:0
14A differentially methylated region of the ZmCCT10 promoter affects flowering time in hybrid maize显示文摘Flowering time(FT) is a key maize domestication trait, variation in which allows maize to grow in a wide range of latitudes. Although previous studies have investigated the genetic control of FT-related traits per se, few studies of FT hybrid performance have been published. We characterized the genomic architecture associated with hybrid performance for FT in a hybrid panel by testcrossing Chang 7–2 with 328Ye478 × Qi319 recombinant inbred lines(RILs). We identified 11 quantitative trait loci(QTL) for hybrid performance in FT-related traits, including a major QTL qFH10 that controls hybrid performance and heterosis in a summer maize-growing region. However, this locus acts in regulating FT traits per se only in a spring maize-growing region. We validated ZmCCT10 as a candidate gene for qFH10 and found that differences between hybrids and their parental lines in DNA methylation in the differentially methylated region(DMR, –700 to –1520) of the ZmCCT10 promoter affected gene expression pattern and thereby FT in the summer maize-growing region.Zhiqiang Zhou Xin Lu Chaoshu Zhang Mingshun Li Zhuanfang Hao Degui Zhang Hongjun Yong Jienan Han Xinhai Li Jianfeng Weng 2023The Crop Journal2023,11,5:0
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