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| 1 | Key Technologies of Ultra-high Voltage Hybrid LCC-VSC MTDC Systems显示文摘The key technologies of ultra-high voltage hybrid LCC-VSC MTDC systems are investigated,focusing on the design of system configurations,converter topologies and the control and protection system.A double converter per pole of VSC connection is proposed along with the design of a 5000 MW VSC valve to develop a±800 kV/5000 MW large-capacity power transmission.The hybrid MMC topology capable of clearing the DC faults and the control strategy are developed to effectively improve the reliability in case of overhead line faults.The control and protection system of the LCC-VSC MTDC system is introduced to offer flexible operations under both normal and abnormal conditions,which includes voltage/current margin-based coordination,converter switch-in and switch-out,re-connection and drop-off of a third station.Simulations of an LCC-VSC MTDC system based on the LCC-VSC MTDC project are performed. | Hong Rao Yuebin Zhou Shukai Xu Xipeng Cai Wanyu Cao Yiliang Xu Chenglin Ren | 2019 | CSEE Journal of Power and Energy Systems2019，5，3： | 14 |
| 2 | A satellite clock error correction method in the wide area differential system显示文摘Based on the deep analysis of the wide area differential principle on the separation of satellite ephemeris errors and clock errors, the similarities and differences between the absolute separation of satellite ephemeris errors under time synchronization among the differential stations and relative separation of them under no time synchronization among them are analyzed. A one-station correction method of satellite clock errors including the 1st and the 2nd step correction is given under no time synchronization among these secondary stations, and the backward inference algorithm of the second correction of satellite clock errors is proposed. Through simulation analysis, satellite time service accuracy with code phase measurement can reach 5―7 ns, and that with carrier phase smoothing pseudo-range can reach 1―3 ns. | CAI ChengLin LI XiaoHui WU HaiTao CHANG XingWang | 2009 | Chinese Science Bulletin2009，54，24： | 4 |
| 3 | Study of a new one-way timing method显示文摘This paper combines the advantages of both common-view time transfer and one-way timing and proposes a new one-way timing method.Owing to the limitations in users capacity and real-time,common-view time transfer can not provide time service simultaneously for mass users.A zero baseline experiment is carried out to validate its feasibility.Experimental results indicate this new method can achieve a timing accuracy within 5 ns.Users with requirements of rigorous time can employ this method to keep time synchronized with timing labs. | XU LongXia LI XiaoHui XUE YanRong CAI ChengLin GUO MeiJun | 2012 | Science China(Physics,Mechanics & Astronomy)2012，55，12： | 3 |
| 4 | A Novel Integrated Path Planning Algorithm for Warehouse AGVs显示文摘We propose an integrated path planning method for multiple automated guided vehicles performing logistics delivery within a real-world warehouse environment considering obstacles. By applying it on each vehicle,this proposed method enables the vehicle the vehicles have the capabilities for autonomous path planning. The path planning consists of three parts, K-means algorithm based task points clustering, genetic algorithm based task points ordering, and the probabilistic road map based best path search. Vehicle conflict resolution is depending on implementing the probabilistic road map construction considering the realistic map with obstacles.The simulations result validate that the clustering and ordering are necessary for the path planning, both the path planning time and the Automated guided vehicles(AGVs)running time can be dramatically reduced. | WEN Tao YANG Daichuan LIU Weifeng WEN Chenglin CAI Baigen | 2021 | Chinese Journal of Electronics2021，30，2： | 3 |
| 5 | Catalytic and highly stereoselectiveβ-mannopyranosylation using a 2,6-lactone-bridged mannopyranosyl ortho-hexynylbenzoate as donor显示文摘An efficient and catalytic protocol for highly stereoselective construction ofβ-mannopyranosylation has been developed.Glycosylation of 2,6-lactone-bridged mannopyranosyl ortho-hexynylbenzoate with various acceptors proceeded smoothly in the presence of 5%Hg(Ⅱ)at room temperature,resulting in the correspondingβ-mannosides in high yield and exclusiveβ-stereoselectivity. | Yingle Feng Jie Yang Chenglin Cai Taotao Sun Qi Zhang Yonghai Chai | 2022 | Chinese Chemical Letters2022，33，11： | 1 |
| 6 | New progress in R&D; of lower olefin synthesis显示文摘 | Zhongmin Liu Chenglin Sun Gongwei Wang Qingxia Wang Guangyu Cai | 2000 | Fuel Processing Technology2000，，2： | 1 |
| 7 | A virtual reference satellite differential method for relative correction of satellite ephemeris errors显示文摘In order to solve the problems that the novel wide area differential method on the satellite clock and ephemeris relative correction (CERC) in the non-geostationary orbit satellite constellation, a virtual reference satellite (VRS) differential principle using relative correction of satellite ephemeris errors is proposed. It is referred to be as the VRS differential principle, and the elaboration is focused on the construction of pseudo-range errors of VRS. Through qualitative analysis, it can be found that the impact of the satellite’s clock and ephemeris errors on positioning can basically be removed and the users’ positioning errors are near zero. Through simulation analysis of the differential performance, it is verified that the differential method is universal in all kinds of satellite navigation systems with geostationary orbit (GEO) constellation, Medium orbit (MEO) constellation or hybrid orbit constellation, and it has insensitivity to abnormal aspects of a satellite ephemeris and clock. Moreover, the real time positioning accuracy of differential users can be maintained within several decimeters after the pseudo-range measurement noise is effectively weakened or eliminated. | CAI ChengLin 1,3 , LI XiaoHui 2,3 & WU HaiTao 2,3 1 Gulin University of Electronic Technology, 541004, China 2 National Time Service Center, Chinese Academy of Sciences, Lintong 710600, China 3 Key Laboratory of Precision Navigation and Timing Technology, National Time Service Center, Chinese Academy of Sciences, Lintong 710600, China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，12： | 1 |
| 8 | Target the neglected VOCs emission from iron and steel industry in China for air quality improvement显示文摘Recent years have witnessed significant improvement in China’s air quality.Strict environmental protection measures have led to significant decreases in sulfur dioxide(SO2),nitrogen oxides(NOx),and particulate matter(PM)emissions since 2013.But there is no denying that the air quality in 135 cities is inferior to reaching the Ambient Air Quality Standards(GB 3095–2012)in 2020.In terms of temporal,geographic,and historical aspects,we have analyzed the potential connections between China’s air quality and the iron and steel industry.The non-target volatile organic compounds(VOCs)emissions from iron and steel industry,especially from the iron ore sinter process,may be an underappreciated index imposing a negative effect on the surrounding areas of China.Therefore,we appeal the authorities to pay more attention on VOCs emission from the iron and steel industry and establish new environmental standards.And different iron steel flue gas pollutants will be eliminated concurrently with the promotion and application of new technology. | Chenglin Cai Juexiu Li Yi He Jinping Jia | 2023 | Frontiers of Environmental Science & Engineering2023，17，8： | 1 |
| 9 | A review on GaN HEMTs:nonlinear mechanisms and improvement methods显示文摘The GaN HEMT is a potential candidate for RF applications due to the high frequency and large power handling capability.To ensure the quality of the communication signal,linearity is a key parameter during the system design.However,the GaN HEMT usually suffers from the nonlinearity problems induced by the nonlinear parasitic capacitance,transconductance,channel transconductance etc.Among them,the transconductance reduction is the main contributor for the nonlinearity and is mostly attributed to the scattering effect,the increasing resistance of access region,the self-heating effect and the trapping effects.Based on the mechanisms,device-level improvement methods of transconductance including the trapping suppression,the nanowire channel,the graded channel,the double channel,the transconductance compensation and the new material structures have been proposed recently.The features of each method are reviewed and compared to provide an overview perspective on the linearity of the GaN HEMT at the device level. | Chenglin Du Ran Ye Xiaolong Cai Xiangyang Duan Haijun Liu Yu Zhang Gang Qiu Minhan Mi | 2023 | Journal of Semiconductors2023，44，12： | 0 |
| 10 | On Xiaozhongfang Treating Postoperative Early Swelling of Hand Injury显示文摘 | WANG Weiguo CAO Xuecheng SANG Chenglin SUN Baoguo ZHAO Gang HANG Jin CAI Jinfang ZHANG Shu | 2005 | 美国中华健康卫生杂志2005，8，4： | 0 |
| 11 | A genome-wide loss-of-function screening method for minimizing false-negatives caused by functional redundancy显示文摘 | Li Mao Chenglin Liu Zhen Wang Xiaofeng Niu Liang Xue Zhilei Zhou Zhenying Cai Meng Yu Yixue Li Dianqing Wu Lin Li | 2016 | Cell Research2016，26，9： | 0 |
| 12 | Recent progress of physical failure analysis of GaN HEMTs显示文摘Gallium nitride(GaN)-based high-electron mobility transistors(HEMTs) are widely used in high power and high frequency application fields, due to the outstanding physical and chemical properties of the GaN material. However, GaN HEMTs suffer from degradations and even failures during practical applications, making physical analyses of post-failure devices extremely significant for reliability improvements and further device optimizations. In this paper, common physical characterization techniques for post failure analyses are introduced, several failure mechanisms and corresponding failure phenomena are reviewed and summarized, and finally device optimization methods are discussed. | Xiaolong Cai Chenglin Du Zixuan Sun Ran Ye Haijun Liu Yu Zhang Xiangyang Duan and Hai Lu | 2021 | Journal of Semiconductors2021，42，5： | 0 |
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