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| 1 | Satellite lithium-ion battery remaining useful life estimation with an iterative updated RVM fused with the KF algorithm显示文摘Lithium-ion batteries have become the third-generation space batteries and are widely utilized in a series of spacecraft.Remaining Useful Life(RUL) estimation is essential to a spacecraft as the battery is a critical part and determines the lifetime and reliability.The Relevance Vector Machine(RVM) is a data-driven algorithm used to estimate a battery's RUL due to its sparse feature and uncertainty management capability.Especially, some of the regressive cases indicate that the RVM can obtain a better short-term prediction performance rather than long-term prediction.As a nonlinear kernel learning algorithm, the coefficient matrix and relevance vectors are fixed once the RVM training is conducted.Moreover, the RVM can be simply influenced by the noise with the training data.Thus, this work proposes an iterative updated approach to improve the long-term prediction performance for a battery's RUL prediction.Firstly, when a new estimator is output by the RVM, the Kalman filter is applied to optimize this estimator with a physical degradation model.Then, this optimized estimator is added into the training set as an on-line sample, the RVM model is re-trained, and the coefficient matrix and relevance vectors can be dynamically adjusted to make next iterative prediction.Experimental results with a commercial battery test data set and a satellite battery data set both indicate that the proposed method can achieve a better performance for RUL estimation. | Yuchen SONG Datong LIU Yandong HOU Jinxiang YU Yu PENG | 2018 | Chinese Journal of Aeronautics2018，31，1： | 29 |
| 2 | 2012年北美放射学年会前列腺影像学最新研究进展显示文摘第98届北美放射学年会(RSNA 2012)在美国芝加哥召开,该届大会共收录与前列腺相关的论文共58篇,以MRI为主,超声、PET等技术在前列腺中的的论文相对较少。这些论文主要关注于不同成像技术间的组合和优化在前列腺癌诊断与鉴别诊断中的应用价值。作者对以上方面的研究进展进行综述,旨在为我国前列腺影像学研究提供新的思路。 | 李亮 冯朝燕 Jinxiang Yu Oguz Akin 王良 | 2013 | 磁共振成像2013，4，3： | 4 |
| 3 | Recent Advances in Closed Loop Spray Cooling and its Application in Airborne Systems显示文摘In recent years,the problem of heat dissipation in airborne directed energy weapons has attracted considerable research interest.Spray cooling can be applied to cool airborne directed energy weapons,owing to its several advantages such as a large heat transfer coefficient,absence of boiling hysteresis and uniform surface temperature.To examine the potential of an airborne spray cooling system,the typical high heat flux dissipation methods were compared,and the state of the art research on spray cooling was reviewed.This review was focused on studies related to the spray cooling hydrodynamic mechanism,experimental studies of closed loop spray cooling,numerical simulation studies about spray cooling and the identification of the factors influencing spray cooling systems,and investigations related to the multiple nozzle spray cooling technology and heat transfer correlation predictions.Overall,there is a need for further research to investigate the failure phenomenon after the critical state,matching operation of the total system and microscopic characteristics of airborne specific parameters. | XU Xinjie WANG Yu JIANG Yanlong LIU Jinxiang YUAN Xiaolei | 2021 | Journal of Thermal Science2021，30，1： | 3 |
| 4 | A Review of FPGA-Based Custom Computing Architecture for Convolutional Neural Network Inference显示文摘Convolutional neural network(CNN)has been widely adopted in many tasks.Its inference process is usually applied on edge devices where the computing resources and power consumption are limited.At present,the performance of general processors cannot meet the requirement for CNN models with high computation complexity and large number of parameters.Field-programmable gate array(FPGA)-based custom computing architecture is a promising solution to further enhance the CNN inference performance.The software/hardware co-design can effectively reduce the computing overhead,and improve the inference performance while ensuring accuracy.In this paper,the mainstream methods of CNN structure design,hardwareoriented model compression and FPGA-based custom architecture design are summarized,and the improvement of CNN inference performance is demonstrated through an example.Challenges and possible research directions in the future are concluded to foster research efforts in this domain. | PENG Xiyuan YU Jinxiang YAO Bowen LIU Liansheng PENG Yu | 2021 | Chinese Journal of Electronics2021，30，1： | 3 |
| 5 | The flexural property and its synergistic mechanism of multibody molded beetle elytron plates显示文摘To improve the applications of beetle elytron plates(BEPs,which are biomimetic sandwich plates inspired by beetle elytra),the flexural performance and its synergistic mechanism of multibody molded BEPs were investigated via cantilever testing and finite element method(FEM).The results are summarized as follows.(1)Although debonding damage causes failure of the multibody molded BEPs and honeycomb plate and the reasonable range of trabecular size for BEPs is narrow,both the optimal loading capacity per mass and failure deformation of the BEPs are over two times those of the honeycomb plate.(2)A flexural synergistic mechanism is revealed in the trabecular-honeycomb core structure of BEPs;this mechanism causes the maximum deformation of core structure to gradually transfer from the honeycomb wall to the trabeculae with the increase inη(the ratio of the trabecular radius to the distance between the center points of two trabeculae),which means the different stretching behaviors in these core structures.(3)Unlike the compressive mechanism of BEPs,by controlling and balancing the deformation degrees of the trabeculae and honeycomb walls,the flexural mechanism achieves a minimum core deformation and an optimal flexural performance.These results suggest a qualitative relationship between the deformation behavior of trabecular-honeycomb core structure and bending performance of the whole BEP,and provide a solid foundation for subsequent research and the considerable application potential of this biomimetic sandwich structure in many fields. | YU XinDi ZHANG XiaoMing CHEN JinXiang ZHAO CaiQi ZHAO TiDong FU YaQin | 2020 | Science China(Technological Sciences)2020，63，5： | 2 |
| 6 | Molecular simulations of charged complex fluids: A review显示文摘Molecular simulation plays an increasingly important role in studying the properties of complex fluid systems containing charges,such as ions,piezoelectric materials,ionic liquids,ionic surfactants,polyelectrolytes,zwitterionic materials,nucleic acids,proteins,biomembranes and etc.,where the electrostatic interactions are of special significance.Several methods have been available for treating the electrostatic interactions in explicit and implicit solvent models.Accurate and efficient treatment of such interactions has therefore always been one of the most challenging issues in classical molecular dynamics simulations due to their inhomogeneity and long-range characteristics.Currently,two major challenges remain in the application field of electrostatic interactions in molecular simulations;(i)improving the representation of electrostatic interactions while reducing the computational costs in molecular simulations;(ii)revealing the role of electrostatic interactions in regulating the specific properties of complex fluids.In this review,the calculation methods of electrostatic interactions,including basic principles,applicable conditions,advantages and disadvantages are summarized and compared.Subsequently,the specific role of electrostatic interactions in governing the properties and behaviors of different complex fluids is emphasized and explained.Finally,challenges and perspective on the computational study of charged systems are given. | Zhiyong Xu Zhongjin He Xuebo Quan Delin Sun Zhaohong Miao Hai Yu Shengjiang Yang Zheng Chen Jinxiang Zeng Jian Zhou | 2021 | Chinese Journal of Chemical Engineering2021，34，3： | 2 |
| 7 | Cure kinetics and thermal properties of novel bismaleimide containing phthalide cardo structure显示文摘 | Xuhai Xiong Ping Chen Jinxiang Zhang Qi Yu Baichen Wang | 2010 | Thermochimica Acta2010，，1： | 1 |
| 8 | Progress of pocket PIG ion sources with permanent magnet at Peking University显示文摘 | Yu Jinxiang Ren Xiaotang Song Zhizhong | 1994 | Rev Sci Instrum1994，65，4： | 1 |
| 9 | Clinical and epidemiological characteristics of a fatal case of avian influenza A H10N8 virus infection: a descriptive study显示文摘 | HaiYing Chen Hui Yuan Rongbao Gao Jinxiang Zhang Dayan Wang Ying Xiong GuoYin Fan Fan Yang Xiaodan Li Jianfang Zhou Shumei Zou Lei Yang Tao Chen Libo Dong Hong Bo Xiang Zhao Ye Zhang Yu Lan Tian Bai Jie Dong Qun Li ShiWen Wang YanPing Zhang Hui Li Tian Go | 2014 | The Lancet2014，，： | 1 |
| 10 | A cold-cathode PIG ion source for the production of intense O- ion beam 显示文摘 | Yu Jinxiang Yan Jifeng Song Zhizhong | 2004 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators Spectrometers Detectors and Associated Equipment2004，531，3： | 1 |
| 11 | Molecular modeling of the inhibition mechanism of 1-(2-aminoethyl)-2-alkyl-imidazoline显示文摘 | Jun Zhang Jinxiang Liu Weizhao Yu Youguo Yan Long You Linfa Liu | 2010 | Corrosion Science2010，，6： | 1 |
| 12 | Proteomic Analysis of Pancreatic Ductal Adenocarcinoma Compared with Normal Adjacent Pancreatic Tissue and Pancreatic Benign Cystadenoma显示文摘 | Yazhou Cui Mei Tian Meijuan Zong Mujian Teng Yu Chen Jun Lu Jinbo Jiang Xiaoyong Liu Jinxiang Han | 2009 | Pancreatology . 2009 (1-2)2009，，1： | 1 |
| 13 | Vibration properties and transverse shear characteristics of multibody molded beetle elytron plates显示文摘This study utilized cantilever experiments to investigate the vibration properties of multibody molded beetle elytron plates(BEPs),which is a type of biomimetic sandwich plate inspired by beetle elytra;the corresponding shear characteristics were further revealed by a finite element method(FEM). The following results were obtained:(1) Experimental results suggest that the maximum displacement response of the BEPs was about 25% less than that of a honeycomb plate with almost the same first natural frequency,which indicates that a BEP with reasonable structural parameters has the potential to replace a honeycomb plate to achieve better vibration performance;(2) The trabecular structure not only enhanced the shear stiffness of the core layer in column areas but also the skins in the honeycomb wall areas,thus changing the distribution of the shear force in the different components and improving the mechanical performances of the BEP;and(3) Although this enhancement effect from trabeculae was not uniform,the average shear force proportion of the skins(or core structure) in the entire BEP structure was very close to that of the honeycomb plate. Therefore,the shear calculation assumption used for honeycomb plates is still applicable in the BEP.The results provide an experimental basis for the design and application of BEPs and inspiration for the development of related products in vibrational environments. | ZHANG XiaoMing YU XinDi CHEN JinXiang PAN LongCheng HU LiPing FU YaQin | 2020 | Science China(Technological Sciences)2020，63，12： | 1 |
| 14 | ak Molecular mod- eling study inhibition performance of imidazolines for mild steel in COs corrosion显示文摘 | Jinxiang Liu Weizhao Yu Jun Zhang et | 2010 | Applied Surface Science2010，，256： | 1 |
| 15 | Minipermanent magnet high-current microwave ion source显示文摘 | SONG Zhizhong PENG Shixiang YU Jinxiang | 2006 | Review of Scientific Instruments2006，77，03： | 1 |
| 16 | Progress of Pocket PIG Ion Sources With Perma nent Magnet at Peking University显示文摘 | Yu Jinxiang Ren Xiaotang Song Zhizhong | 1994 | Rev Sci Instrum1994，65，4： | 1 |
| 17 | Microturbulence in HT-6M Tokamak显示文摘The small scale density Buctuations in the interior of HT-6M Ohmic plasma have been studied by CO_(2) laser collective scattering system in deuterium discharges covering a range of neQa(chord-average density times safety factor at the limiter)and energy confinement time.Tlie relative density fluctuation level in the interior is inversely proportional to the toroidal magnetic field and average densityt and the energy con・fineineiit time te decreases with the Huctuation level increasing in the region where te linearly increases with neqa and satisfies the Goldston scaling law.It is suggested that the niicroturbulence in the interior zone is responsible for anomalous transport in tokamaks. | ZENG Lei YU Changxuan CAO Jinxiang ZHU Guoliang ZHANG Daqing LI Youyi | 1993 | Chinese Physics Letters1993，10，8： | 0 |
| 18 | Spectra of p-^(11)B Three-Body Sequential Decay Reaction | Yuan Jian Liu Xiaodong Xu Guoji Sun Zuxun China Institute of Atomic Energy,Beijing 102413Lin Erhkang Wang Changwan Yu Yuehchung Liu Tongyuan Institute of Physics,Academia Sinica,Taipei 11529Tang Guoyou Shi Zhaomin Chen Jinxiang Gong Linghua Yang Qixiang Institute of Heavy Ion Physics,Peking University,Beijing 100871Zhang Peihua Graduate School,the Chinese Academy of Sciences,P.O.Box 3908,Beiting 100039 | 1997 | Chinese journal of nuclear physics1997，，4： | 0 |
| 19 | Direct synthesis of a disinfectant with fresh scent of green plants by semi-hydrogenation of alkynol on Pd single-atom catalysts显示文摘Alcohol-based disinfectants have protected people in the coronavirus disease 2019(COVID-19)pandemic,but olfactory stimuli of ethanol may evoke unpleasant memories associated with stressful situations in the devastating infectious disease.The smell of ethanol in household cleaning and disinfectant products can be covered up by the fragrance additives,and 3-hexenol is especially appreciated for the characteristic,strong odor of green plants.Industrial production of 3-hexenol relies on the selective hydrogenation of 3-hexyn-1-ol,where Lindlar catalyst is normally used for the superior selectivity.Although achieving such catalytic transformation in ethanol solution seems as a direct way to produce a disinfectant with green aroma,a popular consumer product in the post-COVID era,severe leaching of toxic Pb hinders Lindlar catalyst as a promising candidate.We find that the Fe_(2)O_(3) supported Pd single-atom catalyst is highly selective to fulfill semi-hydrogenation of 3-hexyn-1-ol in 75%ethanol,and the aforementioned household product is readily generated after filtrating the stable,solid catalyst out of reaction solution.Single-atom catalysts have been frequently utilized for fine-chemical synthesis,while in this work they make stunning debut in practical manufacture of daily used products. | Yan Jiang Xuetong Yu Yuxia Ji Xunzhu Jiang Yalin Guo Tianbo Li Liang Gao Rui Lang Yanxiong Fang Botao Qiao Jinxiang Dong | 2024 | Nano Research2024，17，5： | 0 |
| 20 | Investigation of Density Fluctuations with Different Toroidal Magnetic Field in KT-5B Tokamak显示文摘Microturbulence density fluctuations with drift-wave characteristics in KT-5B tokamak were investigated.The density fluctuation power spectrum S(k_(⊥))can be fitted into S(k_(⊥))∝k_(⊥)^(-α),in whichαis in inverse proportion to the toroidal magnetic field BT.Both averaged frequency and width(FWHM)of the frequency spectrum are increasing functions of BT.The phase velocity from the statistical dispersion is larger for k_(⊥)<20cm^(-1) than that for k_(⊥)≥20cm^(-1). | ZENG Lei CAO Jinxiang ZHAN Furu LIU Wandong CHANG Liyan YU Changxuan ZU Qinxin | 1991 | Chinese Physics Letters1991，8，5： | 0 |
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