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| 1 | Partial discharge measurement and analysis under lightning impulse superimposed DC voltage in SF6 gas显示文摘The presence of lightning impulses(LIs)on the DC waveform can seriously influence the insulation performance of a GIL system.The waveshape can be a superposition of the DC and impulse waveform.In this study,the behaviour of partial discharge(PD)on an epoxy surface is investigated under DC and LI superimposed voltage in SF6.The lightning impulses with different polarities are superimposed on the epoxy surface under both positive and negative DC voltages,respectively.Positive lightning impulses are superimposed on a negative DC voltage with a 90%of the partial discharge inception voltage(PDIV)magnitude.The number and amplitude of the PDs are used to evaluate the insulation performance.The experimental results show that the LI with a different polarity applied to DC can excite the PDs on the epoxy surface.The excitation effect of positive LI superimposed on negative DC is more significant.According to the impulse amplitude and PD characteristics,the influence of superimposed LI on PD excitation can be divided into three stages.As the superimposed LI increases,the amplitude of the excited PD increases gradually,while the PD number first increases and then decreases.This study is expected to provide reference for manufacture and protection of power equipment. | Haotian Wang Cong He Ruochen Guo Xuan Meng Wenze Yuan Junhao Li | 2022 | High Voltage2022，7，4： | 3 |
| 2 | Joint optimization of sampling interval and control for condition-based maintenance using availability maximization criterion显示文摘Most of the maintenance optimization models in condition-based maintenance(CBM) consider the cost-optimal criterion, but few papers have dealt with availability maximization for maintenance applications. A novel optimal Bayesian control approach is presented for maintenance decision making. The system deterioration evolves as a three-state continuous time hidden semi-Markov process. Considering the optimal maintenance policy, the multivariate Bayesian control scheme based on the hidden semi-Markov model(HSMM) is developed, the objective is to maximize the long-run expected average availability per unit time. The proposed approach can optimize the sampling interval and control limit jointly. A case study using Markov chain Monte Carlo(MCMC)simulation is provided and a comparison with the Bayesian control scheme based on hidden Markov model(HMM), the age-based replacement policy, Hotelling's T^2, multivariate exponentially weihted moving average(MEWMA) and multivariate cumulative sum(MCUSUM) control charts is given, which illustrates the effectiveness of the proposed method. | LI Xin CAI Jing ZUO Hongfu LIU Ruochen CHEN Xi GUO Jiachen | 2018 | Journal of Systems Engineering and Electronics2018，29，1： | 1 |
| 3 | SRSF1通过调控DBF4B的可变剪接来阻断DNA损伤和促进肿瘤的形成显示文摘文章简介DBF4B是细胞周期S期促进激酶Cdc7的调控因子,与Cdc7激酶一起参与并调控DNA复制的起始与进程,在细胞周期中发挥重要的调控作用。本研究报道了细胞周期相关蛋白DBF4B剪接异构体及剪接调控因子SRSF1在结直肠癌发生发展中的调控作用。 | Linlin Chen Chunling Luo Lei Shen Yuguo Liu Qianqian Wang Chang Zhang Ruochen Guo Yanan Zhang Zhiqin Xie Ning Wei Wenwu Wu 韩军 冯英 | 2018 | 科学新闻2018，0，4： | 0 |
| 4 | Task Planning and Collaboration of Jellyfish-inspired Multiple Spherical Underwater Robots显示文摘Task planning and collaboration of multiple robots have broad application prospects and value in the field of robotics.To improve the performance and working efficiency of our Spherical Underwater Robot(SUR),we propose a multi-robot control strategy that can realize the task planning and collaboration of multiple robots.To complete real-time information sharing of multiple robots,we first build an acoustic communication system with excellent communication performance under low noise ratio conditions.Then,the task planning and collaboration control strategy adjust the SURs so that they maintain their positions in the desired formation when the formation moves.Multiple SURs can move along desired trajectories in the expected formation.The control strategy of each SUR uses only its information and limited information of its neighboring SURs.Finally,based on theoretical analysis and experiments,we evaluate the validity and reliability of the proposed strategy.In comparison to the traditional leader–follower method,it is not necessary to designate a leader and its followers explicitly in our system;thus,important advantages,such as fault tolerance,are achieved. | Ruochen An Shuxiang Guo Yuanhua Yu Chunying Li Tendeng Awa | 2022 | Journal of Bionic Engineering2022，19，3： | 0 |
| 5 | Modulation of Microstructure and Charge Transport in Polymer Monolayer Transistors by Solution Aging显示文摘A few monolayers of organic semiconductors adjacent to the dielectric layer are of vital importance in organic field-effect transistors due to their dominant role in charge transport.In this report,the 2-nm-thick polymer monolayers based on poly(3-hexylthiophene)with different molecular weights(M_(n))were fabricated using dip-coating technique.During the monolayer(solid state)formation from the solution,a disorder-to-order transition of polymer conformation is observed through UV-vis absorption measurement.Meanwhile,high Mn polymer monolayer generates higher crystalline fibrillar microstructure than the low Mn one due to the strongerπ–πintermolecular packing between polymers.More importantly,the solution aging procedure is utilized to further improve the morphology of polymer monolayers.It is obvious that after aging for 6 d,both fiber dimension and density as well as conjugation length are significantly increased under the same processing conditions in comparison to the fresh solution,and consequently the field-effect mobilities are remarkably enhanced by 2—4 times.Note that the maximum mobility of 0.027 cm2·V^(–1)·s^(–1)is among the highest reported values for poly(3-hexylthiophene)monolayer transistors.These results demonstrate a simple but powerful strategy for boosting the device performance of polymer monolayer transistors. | Xuemei Lin Ruochen Liu Chenming Ding Junyang Deng Yifu Guo Shibing Long Ling Li Mengmeng Li | 2021 | Chinese Journal of Chemistry2021，39，11： | 0 |
| 6 | The concordance between the evolutionary trend and the clinical manifestation of the two SARS-CoV-2 variants显示文摘Coronavirus disease 2019(COVID-19),the disease caused by infection with severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),has developed into a global pandemic that continues to pose an enormous threat to public health and the global economy.Since the first SARS-CoV-2 genome was released[1],thousands of genetic variants have been identified in SARS-CoV-2 strains isolated from worldwide patients. | Ben Hu Ran Liu Xiaolu Tang Yuchen Pan Ming Wang Yongqing Tong Guangming Ye Gaigai Shen Ruochen Ying Aisi Fu Di Li Wanxu Zhao Jing Peng Jie Guo Dong Men Xinmin Yao Yirong Wang Hong Zhang Zhihui Feng Junping Yu Liangjun Chen Zixin Deng Xuemei Lu Ya-Ping Zhang Yirong Li Bende Liu Lilei Yu Yan Li Jian Lu Tiangang Liu | 2021 | National Science Review2021，8，8： | 0 |
| 7 | The receptor-like cytoplasmic kinase OsRLCK118 regulates plant development and basal immunity in rice(Oryza sativa L.)显示文摘Receptor-like cytoplasmic kinases(RLCKs),which belong to a large subgroup of receptor-like kinases in plants,play crucial roles in plant development and immunity.However,their functions and regulatory mechanisms in plants remain unclear.Here,we report functional characterization of OsRLCK118 from the OsRLCK34 subgroup in rice(Oryza sativa L.).Expression of OsRLCK118 could be induced by infections with Xanthomonas oryzae pv.oryzae(Xoo)strains PXO68 and PXO99.Silencing of OsRLCK118 altered plant height,flag-leaf angle and second-topleaf angle.Silencing of OsRLCK118 also resulted in increasing susceptibility to Xoo and Magnaporthe oryzae(M.oryzae)in rice plants.OsRLCK118 knock-out plants were more sensitive to bacterial blight whereas OsRLCK118 overexpressor plants exhibited increased disease resistance.Expression levels of pathogenesis-related genes of OsPAL1,OsNH1,OsICS1,OsPR1a,OsPR5 and OsPR10 were reduced in the rlck118 mutant compared to wild-type rice(Dongjin)and knock-out of OsRLCK118 compromised the production of reactive oxygen species.These results suggest that OsRLCK118 may modulate basal resistance to Xoo and M.oryzae,possibly through regulation of ROS burst and hormone mediated defense signaling pathway. | Xiaorong Xiao Rui Wang Wenya Guo Shahneela Khaskhali Ruochen Fan Rui Zhao Chunxia Li Chaozu He Xiaolei Niu Yinhua Chen | 2022 | Tropical Plants2022，1，1： | 0 |
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