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43篇 您的检索式:作者名="Gongjun"
    题名 作者 年代 出处 被引量
1Dual-Coupled Robust Wireless Power Transfer Based on Parity-Time-symmetric Model显示文摘The characteristics of the wireless power transfer(WPT)system vary under different transfer distances.As distance increases,efficiency drops off sharply,limiting the wider use of WPT technology.In order to mitigate this problem,this paper proposes a novel dual-coupled WPT system,where both electric-coupled mechanism and magnetic-coupled mechanism are utilized to enhance the transfer efficiency.Furthermore,a Parity-Time(PT)-symmetric circuit is utilized to realize robustness of the system.The coupled-mode model of the system is established and the expressions of operating frequency,transfer efficiency and output power are deduced.Analysis results indicate that in the unbroken PT-symmetric state,compared with single-coupled systems,the proposed system can keep constant performance within a longer distance;in broken PT-symmetric state,the proposed system has higher transfer efficiency.Simulated results and comparative results are in accordance with the theoretical analysis.Within 1.4m,this scheme can transfer power with constant efficiency of 77%and constant output power of 70W.Gongjun Liu Bo Zhang 2018Chinese Journal of Electrical Engineering2018,4,2:4
2Design and tests of a rotary plug seedling pick-up mechanism for vegetable automatic transplanter显示文摘The rotary plug seedling pick-up mechanism for vegetable automatic transplanter is the technical bottleneck to improve the mechanization level of vegetable planting in China.In order to solve the problems of rotary seedling pick-up mechanism proposed in previous study,such as low success ratio of seedling pick-up at high speed,and interference between the seedling bowl and the end of the other seedling pick-up arm,a novel kind of rotary seedling pick-up mechanism of planetary gear train with combined type gears of incomplete denatured-eccentric-circular and non-circular gears was proposed.Through kinematic analysis of the seedling pick-up mechanism,the kinematics model was established.The computer-aided analysis and optimization software with human-computer interaction method was developed to realize parameters optimization of the seedling pick-up mechanism.Three-dimensional parametric design system of seedling pick-up mechanisms with combined non-circular gear transmission was developed for mechanism virtual simulation to verify the correctness of theoretical model and design results of the mechanism.The physical prototype of the mechanism was manufactured,and high-speed camera kinematics tests of the mechanism were conducted in the laboratory to study its kinematic characteristics.Laboratory seedling pick-up tests were carried out.The mechanism has the success ratio of seedling pick-up 96.3%without interference during seedling transporting when the rotation speed of the mechanism is 50 r/min and the seedling transplanting efficiency is 100 plants/min per row,showing that the novel mechanism has better working performance than the original one and could be applied in vegetable plug seedling transplanter.Bingliang Ye Gongjun Zeng Bin Deng Chiulan Yang Jikun Liu Gaohong Yu 2020International Journal of Agricultural and Biological Engineering2020,13,3:2
3Applying a bilingual model to mine e-commerce satisfaction sentiment显示文摘In recent years we have witnessed that e-commerce has become an internationalphenomenon in which sellers often need to do business with buyers who usedifferent languages. As customers, including international customers, often makepurchase decisions based on online reviews, comments and recommendationsmade by other customers, understanding the sentiment of online commentsbecomes necessary for sellers who want to provide customized recommendationsto users for a higher level of customer satisfaction. To this end, we have recentlydeveloped a bilingual model to handle both English and Chinese user commentsposted on e-commerce websites. This paper addresses several key issues includingChinese segmentation, data mining models and systematic design. An experimentin mining user satisfaction sentiment with English and Chinese online usercomments illustrates the value of our developed bilingual model.Gongjun Yan Wu He Hui Shi Danda B.Rawat 2014Journal of Management Analytics2014,1,4:2
4A Probabilistic Analysis of Link Duration in Vehicular Ad Hoc Networks显示文摘Yan Gongjun Olariu S 2011IEEE Transac-tions on Intelligent Transportation Systems2011,12,4:1
5Fracture Me chanics Inverse Problem and the Shear Stress Method Several Problems显示文摘WEI Yao bing GONGJun LANG Fu yuan 0,,04:1
6The impact of XBRL on information asymmetry:evidence from loan contracting显示文摘This paper examines whether and how the adoption of eXtensible Business Reporting Language(XBRL)reduces information asymmetry in loan contracting.We hypothesize that the adoption of XBRL can enhance information dissemination and mitigate the information asymmetry problem between borrowers and lenders.Using a sample of 554 US bank loan contracts,we find that borrowers who adopt XBRL enjoy more favourable price and nonprice terms of bank loan contracts.Additional analyses indicate that the relations among XBRL adoption and bank loan price vary with loan structure.Overall,this research provides evidence that technology advancements such as XBRL reduce cost of bank loans by decreasing information asymmetry between borrowers and lenders.Dazhi Chong Hui Shi Liuliu(Luna)Fu Hao Ji Gongjun Yan 2017Journal of Management Analytics2017,4,2:1
7Poly (amidosulfonic acid) modified glassy carbon electrode for- determination of isoniazid in pharmaceuticals 显示文摘Yang Gongjun Wang Cunxiao Zhang Rui 2008Bioel- ectrochemistry2008,73,:1
8A Probabilistic analysis of link duration in Vehicular Ad Hoe Networks 显示文摘Yan Gongjun Stephan Olariu 2011IEEE Transactions on intelligent transportation system2011,12,4:1
9显示文摘LiKun(李坤) PeiZhiliang(裴志亮) GongJun(宫骏)etal 2007金属学报2007,43,12:1
10Data-driven learning of Q-matrix 显示文摘Liu Jingchen Xu Gongjun Ying Zhiliang 2012Applied Psychological Measure- ment2012,36,7:1
11Fabrica- tion and study on tribological characteristics of bronze-alumina-silver composite under sea water condition显示文摘Cui Gongjun Bi Qinling Yang Jun 2013Materials and Design2013,46,:1
12Tri bologieal properties of bronze-graphite composites under sea water condition显示文摘Cui Gongjun Bi Qinling Zhu Shengyu 2012Tribology Interna- tional2012,53,:1
13Electrochemical behavior of lead(II) at poly(phenol red) modified glassy carbon electrode, and its trace determination by differential pulse anodic stripping voltammetry显示文摘Gongjun Yang Xilong Qu Ming Shen 2008Microchim Acta2008,60,:1
14A Probabilistic Analysis of Link Duration in Vehicular Ad Hoc Networks显示文摘Yan Gongjun Olariu S 2011IEEE Transactions on Intelligent Transportation System2011,12,4:1
15A probabilistic analysis of link duration in vehicular ad hoc networks显示文摘Yan Gongjun Olariu Stephan 2011IEEE Transactions on intelligent transportation system2011,12,4:1
16Providing VANET Security Through Active Position Detection显示文摘Yan Gongjun Choudhary G Michele C 2008Computer Communications2008,31,2:1
17Tribological prop-erties of bronze-graphite composites under sea water condition显示文摘Cui Gongjun Bi Qinling Zhu Shengyu 2012Tribology International2012,53,:1
18Trace measurement of phenothiazine drugs in tablets by micellar-enhanced fluorophotometric method显示文摘YANG Gongjun QU Xilong SHEN Ming 2007J Fluoresc2007,17,2:1
19Data-driven Learning of Q-matrix显示文摘Liu Jingchen Xu Gongjun Ying Zhiliang 2012Applied Psychological Measure- ment2012,36,7:1
20Theory of self- learning Q-matrix 显示文摘Liu Jingchen Xu Gongjun Ying Zhiliang 2013Bernoulli2013,19,5:1
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