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| 1 | A multi-stage regulation strategy of space manipulators with a free-swinging joint failure显示文摘To ensure tasks can be completed after a free-swinging joint failure occurs,a multi-stage regulation strategy of space manipulators is proposed.Considering all terms of the dynamics equation,an evaluation model of the regulation ability(EMRA)of active joints over the fault joint is established based on the fuzzy entropy.And then a multi-stage regulation strategy based on the EMRA is designed to regulate the fault joint.The strategy divides the regulation process into several stages,and select a certain active joint to regulative the fault joint in every stage.With this multi-stage regulation strategy,the fault joint can be regulated to the desired angle without huge torque on regulative joints.The simulation is carried out with a 7-DOF space manipulator,verifying the correctness and effectiveness of the multi-stage regulation strategy.The strategy has three advantages:Coriolis and centrifugal terms are both considered for the first time in selecting the regulative joint,making the selection result more in line with the actual regulation process;The influence of the model uncertainty is eliminated in establishing the EMRA,making the evaluation of regulative ability more precise;The fault joint is successfully regulated to the desired angle without huge torque on regulative joints. | Gang CHEN Yingzhuo FU Qingxuan JIA Bonan YUAN Dan LIU | 2021 | Chinese Journal of Aeronautics2021，34，5： | 1 |
| 2 | A scoring system for prediction of early recurrence after liver resection for Barcelona Clinic Liver Cancer stage B hepatocellular carcinoma显示文摘 | Qian Honggang Wei Meng Qiu Hu Wu Jianhui Liu Bonan Lyu Ang Liu Qiao Li Chengpeng Leng Jiahua | 2014 | Chinese Medical Journal2014，，24： | 1 |
| 3 | A Probe-Shaped Sensor With FBG and Fiber-Tip Bubble for Pressure and Temperature Sensing显示文摘A probe-shaped sensor for simultaneous temperature and pressure measurement was reported in this article.The effective length of the sensor was〜2 mm,consisting of a fiber Bragg grating(FBG)and a Fabry-Perot interferometer(FPI)with a nano silica diaphragm.The response sensitivities of the sensor for pressure and temperature were measured as-0.98 nm/MPa and 11.10pm/℃,respectively.This sensor had an extremely low cross-sensitivity between pressure and temperature,which provided a significant potential in dual-parameter sensing. | Bonan LIU Junxian LUO Shen LIU Yanping CHEN Bo HUANG Changrui LIAO Yiping WANG | 2021 | Photonic Sensors2021，11，4： | 1 |
| 4 | Identifying Hidden Li–Si–O Phases for Lithium-Ion Batteries via First-Principle Thermodynamic Calculations显示文摘SiO–based materials are promising alloys and conversion-type anode materials for lithium-ion batteries and are recently found to be excellent dendrite-proof layers for lithium-metal batteries.However,only a small fraction of the Li–Si–O compositional space has been reported,significantly impeding the understanding of the phase transition mechanisms and the rational design of these materials both as anodes and as protection layers for lithium-metal anodes.Herein,we identify three new thermodynamically stable phases within the Li–Si–O ternary system(Li_(2)SiO_(5),Li_(4)SiO_(6),and Li_(4)SiO_(8))in addition to the existing records via first-principle calculations.The electronic structure simulation shows that Li_(2)SiO_(5)and Li_(4)SiO_(8)phases are metallic in nature,ensuring high electronic conductivity required as electrodes.Moduli calculations demonstrate that the mechanical strength of Li–Si–O phases is much higher than that of lithium metal.The diffusion barriers of interstitial Li range from 0.1 to 0.6 eV and the interstitial Li hopping serves as the dominating diffusion mechanism in the Li–Si–O ternary systems compared with vacancy diffusion.These findings provide a new strategy for future discovery of improved alloying anodes for lithium-ion batteries and offer important insight towards the understanding of the phase transformation mechanism of alloy-type protection layers on lithium-metal anodes. | Jiale Qu Chao Ning Xiang Feng Bonan Yao Bo Liu Ziheng Lu Tianshuai Wang Zhi Wei Seh Siqi Shi Qianfan Zhang | 2022 | Energy & Environmental Materials2022，5，3： | 0 |
| 5 | Sub-nanometer Pt_(2)In_(3) intermetallics as ultra-stable catalyst for propane dehydrogenation显示文摘Pt-based catalysts are the typical industrial catalysts for propane dehydrogenation(PDH),which still suffer from insufficient lo ng-term durability due to the structu ral instability and coke deposition.A commercial γ-Al_(2)O_(3) supported thermally robust sub-nanometer Pt2In3intermetallic catalyst with atomically ordered structure and rigorously separated Pt single atoms was fabricated,which showed outstanding robustness in 240 h long-term operation at 600℃ with the deactivation rate constant kdas low as0.00078 h^(-1), ranking among the lowest reported values.Based on various in situ characterizations and theoretical calculations,it was proved that the catalyst stability not only resulted from the separated Pt single-atom sites but also significantly affected by the distance of adjacent Pt atoms.An increasing distance to 3.25 A in the Pt_(2)In_(3)could induce a weak π-adsorption configuration of propylene on Pt sites,which facilitated the desorption of propylene and restrained the side reactions like coking. | Yanan Xing Guiyue Bi Xiaoli Pan Qike Jiang Yuanlong Tan Yang Su Leilei Kang Bonan Li Lin Li Aiqin Wang Jingyuan Ma Xiaofeng Yang Xiao Yan Liu Tao Zhang | 2023 | Journal of Energy Chemistry2023，，8： | 0 |
| 6 | Encrypted optical fiber tag based on encoded fiber Bragg grating array显示文摘Optical fibers are typically used in telecommunications services for data transmission,where the use of fiber tags is essential to distinguish between the different transmission fibers or channels and thus ensure the working functionality of the communication system.Traditional physical entity marking methods for fiber labeling are bulky,easily confused,and,most importantly,the label information can be accessed easily by all potential users.This work proposes an encrypted optical fiber tag based on an encoded fiber Bragg grating(FBG)array that is fabricated using a point-by-point femtosecond laser pulse chain inscription method.Gratings with different resonant wavelengths and reflectivities are realized by adjusting the grating period and the refractive index modulations.It is demonstrated that a binary data sequence carried by a fiber tag can be inscribed into the fiber core in the form of an FBG array,and the tag data can be encrypted through appropriate design of the spatial distributions of the FBGs with various reflection wavelengths and reflectivities.The proposed fiber tag technology can be used for applications in port identification,encrypted data storage,and transmission in fiber networks. | Zhihao Cai Bozhe Li Zhiyong Bai Dejun Liu Kaiming Yang Bonan Liu Cong Zhao Mengqiang Zou Jie Zhou Shangben Jiang Jingyi Huang Li Liu Xuming Zhang Junle Qu Yiping Wang Changrui Liao | 2023 | International Journal of Extreme Manufacturing2023，5，3： | 0 |
| 7 | Three-terminal germanium-on-silicon avalanche photodiode with extended p-charge layer for dark current reduction显示文摘Germanium-on-silicon(Ge-on-Si) avalanche photodiodes(APDs) are widely used in near-infrared detection, laser ranging, free space communication, quantum communication, and other fields. However, the existence of lattice defects at the Ge/Si interface causes a high dark current in the Ge-on-Si APD, degrading the device sensitivity and also increasing energy consumption in integrated circuits. In this work, we propose a novel surface illuminated Ge-on-Si APD architecture with three terminals. Besides two electrodes on Si substrates, a third electrode is designed for Ge to regulate the control current and bandwidth, achieving multiple outputs of a single device and reducing the dark current of the device. When the voltage on Ge is -27.5 V, the proposed device achieves a dark current of 100 n A, responsivity of 9.97 A/W at -40 d Bm input laser power at 1550 nm, and optimal bandwidth of 142 MHz. The low dark current and improved responsivity can meet the requirements of autonomous driving and other applications demanding weak light detection. | XIAOBIN LIU XUETONG LI YUXUAN LI YINGZHI LI ZIHAO ZHI MIN TAO BAISONG CHEN LANXUAN ZHANG PENGFEI GUO GUOQIANG LO XUEYAN LI FENGLI GAO BONAN KANG JUNFENG SONG | 2022 | Photonics Research2022，10，8： | 0 |
| 8 | Analysis of Microstructure of Reactor Pressure Vessel Steel due to Thermal Aging Effect by Small-angle Neutron Scattering显示文摘Reactor pressure vessels are of great importance for nuclear power safety and play an extremely important role in the safe operation of reactors and in preventing nuclear leakage.As material microstructure probe,neutrons have the advantages of high penetrability,ability to distinguish between adjacent nuclide and sensitivity to magnetism.The small-angle neutron scattering can accurately obtain the size distribution,volume fraction and composition of the defects of the nanosized copper clusters in the pressure vessel steel matrix,revealing the microstructure mechanism of the macroscopic mechanical properties.The thermal aging supervision samples from a nuclear power plant in China had been analyzed by small-angle neutron scattering. | LI Bonan WANG Zijun LIU Rongdeng HAN Songbai SUN Kai CHEN Dongfeng LIU Yuntao WANG Chenglong TONG Zhenfeng LI Tianfu | 2018 | 中国原子能科学研究院年报2018，，1： | 0 |
| 9 | Fine Characterization and Analysis of Drying Strain of the ELM Board via DIC Technology显示文摘In this paper,the occurrence and development mechanism of strain on the cross-section during the wood drying is explored.Therefore,strain regularity on the cross-section of 50 mm thickness elm(Ulmus rubra)board at the temperature of 40℃and 80℃is detected via digital image correlation technology.Hence,the difference between tangential and radial strain at surface and core layers was denoted.The results showed that strain distribution in the width direction of the board is uneven.Moreover,a large drying shrinkage strain occurs at the near-core layer,while the maximum strain difference reaches 4.08%.Hence,the surface of the board is cracked along the thickness direction.The radial strain of the board is higher than the tangential strain in the early stage of drying,while these strains are reversed in the later stage of drying.The temperature is related to the difference between the tangential and radial strains of the elm board.These differences at the core layer are larger than those of the surface layer.The conducted research results provide a theoretical basis for process optimization. | Yuanchu Liu Xiaodong Zhu Zhengmin Jin Yingying Liu Qingjian Wei Bonan Liang Yingchun Cai Jingyao Zhao | 2023 | Journal of Renewable Materials2023，11，2： | 0 |
| 10 | Green antisolvent additive engineering to improve the performance of perovskite solar cells显示文摘High-quality perovskite films with larger grain size and fewer defects is a prerequisite for highperformance perovskite solar cells(PSCs).Antisolvent-assisted crystallization is an effective approach to obtain compact and uniform perovskite films;however,the majority of antisolvents currently applied have strong toxicity,and the control of perovskite crystallization is not easy through single antisolvent.In this work,a green antisolvent of ethyl acetate(EA)with acetylacetone(AA)additive is used to fine-tune perovskite crystallization and passivate defect,which produces uniform and compact CH;NH;PbI;perovskite films having larger grain and fewer grain boundaries and reduced defect density.Meanwhile,the interfacial hydrophobic characteristic of the perovskite films is enhanced.At the optimized concentration of AA in EA,the power conversion efficiency(PCE)of the CH;NH;PbI;PSCs was improved from 19.2%to 21.1%and their stability in air was also enhanced.These results present a green antisolvent additive engineering strategy to enhance the crystallinity,passivate defects,and fabricate efficient and stable PSCs. | Jiahui Li Xiaodong Hua Fei Gao Xiaodong Ren Chaoqun Zhang Yu Han Yuanrui Li Bonan Shi Shengzhong(Frank)Liu | 2022 | Journal of Energy Chemistry2022，31，3： | 0 |
| 11 | Small Angle Scattering Study of Nano-precipitates in Stainless Steel from Nuclear Power Plant显示文摘Upon long period of service at the nulcear power plant,17-4PH stainless steel valve stems become brittle.The main structural reason for this aging effect is due to the formation of nanoprecipitates in the material.Therefore it is very necessary to carefully investigate the nano-structure change inside this material.Small angle neutron scattering(SANS)is a powerful in | LIU Yuntao ZHANG Peipei LI Tianfu WANG Zijun CHEN Dongfeng SUN Kai WANG Hongli ZHANG Li LIU Rongdeng LI Bonan TONG Zhenfeng BAI Bing | 2017 | Annual Report of China Institute of Atomic Energy2017，，1： | 0 |
| 12 | Small Angle Scattering Study of PAMAM Dendrimer and Its Complex显示文摘The temperature effect on the intermolecular structure of generation 5(G5)poly(amidoamine)(PAMAM)dendrimer in aqueous solutions at different acidic conditions were investigated by using small angle neutron and X-ray scattering(SAS)technique.Upon increasing temperature,a dramatic broadening of the intermolecular structure factor S(Q)peak in the SAS results is clearly shown in Fig.1.This can be attributed | LI Tianfu HAN Wenze WANG Yu CHEN Dongfeng LIU Yuntao LIU Rongdeng ZHANG Li WANG Zijun LI Bonan | 2017 | Annual Report of China Institute of Atomic Energy2017，，1： | 0 |
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