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| 1 | Experimental and analytical studies on multiple tuned mass dampers for seismic protection of porcelain electrical equipment显示文摘Porcelain electrical equipment(PEE),such as current transformers,is critical to power supply systems,but its seismic performance during past earthquakes has not been satisfactory.This paper studies the seismic performance of two typical types of PEE and proposes a damping method for PEE based on multiple tuned mass dampers(MTMD).An MTMD damping device involving three mass units,named a triple tuned mass damper(TTMD),is designed and manufactured.Through shake table tests and finite element analysis,the dynamic characteristics of the PEE are studied and the effectiveness of the MTMD damping method is verified.The adverse influence of MTMD redundant mass to damping efficiency is studied and relevant equations are derived.MTMD robustness is verified through adjusting TTMD control frequencies.The damping effectiveness of TTMD,when the peak ground acceleration far exceeds the design value,is studied.Both shake table tests and finite element analysis indicate that MTMD is effective and robust in attenuating PEE seismic responses.TTMD remains effective when the PGA far exceeds the design value and when control deviations are considered. | Bai Wen Dai Junwu Zhou Huimeng Yang Yongqiang Ning Xiaoqing | 2017 | Earthquake Engineering and Engineering Vibration2017，16，4： | 8 |
| 2 | Assembling of a novel 3D Ag(Ⅰ)-MOFs with mixed ligands tactics:Syntheses, crystal structure and catalytic degradation of nitrophenol显示文摘A silver-based metal-organic framework(Ag-MOFs), [Ag2(H3 ddcba)(dpp)2](1)(H5 ddcba = 3,5-(di(2',5'-dicarboxylphenyl)benozoic acid, dpp = 1,3-di(4-pyridyl)propane), was successfully constructed via hydrothermal assembly of a pentacaboxylate ligand, a N-donor ligand and Ag(I) ions, which possesses a pcu topology and exhibits excellent catalytic properties in aqueous solution for the degradation of onitrophenol(2-NP), m-nitrophenol(3-NP) and p-nitrophenol(4-NP). Related kinetics of such catalytic reactions, photoluminescent and thermal stability of compound 1 were also investigated. | Dandan Huang Xueqian Wua Junwu Tian Xiaokun Wang Zhihang Zhou Dongsheng Li | 2018 | Chinese Chemical Letters2018，29，6： | 7 |
| 3 | Band Engineering and Morphology Control of Oxygen‑Incorporated Graphitic Carbon Nitride Porous Nanosheets for Highly Efficient Photocatalytic Hydrogen Evolution显示文摘Graphitic carbon nitride(g-C3N4)-based photocatalysts have shown great potential in the splitting of water.However,the intrinsic drawbacks of g-C3N4,such as low surface area,poor diffusion,and charge separation efficiency,remain as the bottleneck to achieve highly efficient hydrogen evolution.Here,a hollow oxygen-incorporated g-C3N4 nanosheet(OCN)with an improved surface area of 148.5 m2 g^−1 is fabricated by the multiple thermal treatments under the N2/O2 atmosphere,wherein the C–O bonds are formed through two ways of physical adsorption and doping.The physical characterization and theoretical calculation indicate that the O-adsorption can promote the generation of defects,leading to the formation of hollow morphology,while the O-doping results in reduced band gap of g-C3N4.The optimized OCN shows an excellent photocatalytic hydrogen evolution activity of 3519.6μmol g^−1 h^−1 for~20 h,which is over four times higher than that of g-C3N4(850.1μmol g^−1 h^−1)and outperforms most of the reported g-C3N4 catalysts. | Yunyan Wu Pan Xiong Jianchun Wu Zengliang Huang Jingwen Sun Qinqin Liu Xiaonong Cheng Juan Yang Junwu Zhu Yazhou Zhou | 2021 | Nano-Micro Letters2021，13，3： | 3 |
| 4 | Broadband high-performance microwave absorption of the single-layer Ti_(3)C_(2)T_(x)MXene显示文摘MXenes,a family of two-dimensional(2D)materials,exhibit peculiar microwave-absorbing behaviors due to their unique chemical composition and structure.Although laminated Ti_(3)C_(2)T_(x) MXenes with a multilayer structure have been used for microwave absorption,real 2D MXenes with a single-layer structure have not yet been investigated.Here,the electromagnetic wave response behavior of single-layer Ti_(3)C_(2)T_(x) MXenes was explored in detail.The permittivity of Ti_(3)C_(2)T_(x) MXene rises dramatically with an increase in filler loading,and Ti_(3)C_(2)T_(x) MXene features a distinct dielectric response wherein dipolar polarization and interfacial polarization makes a greater contribution at low filler loading;conductive loss becomes more prominent at high filler loading.Versus laminated Ti_(3)C_(2)T_(x) MXene,single-layer Ti_(3)C_(2)T_(x) MXene delivers superior absorbing capability:The RLminvalue of SL-Ti_(3)C_(2)T_(x)-22%reaches-43.5 d B at 6.5 GHz,and a broad EAB of 6.88 GHz can be attained at a thickness of 1.8 mm due to enhanced dipolar polarization,interfacial polarization,and conductive loss.This work is of great significance in guiding the future development of MXene-based absorbers. | Xuejiao Zhou Junwu Wen Zhenni Wang Xiaohua Ma Hongjing Wu | 2022 | Journal of Materials Science & Technology2022，，20： | 2 |
| 5 | Blade-coated organic solar cells from non-halogenated solvent offer 17%efficiency显示文摘Organic solar cell(OSC)has attracted great interests due to its potential applications[1-9].To date,18%power conversion efficiency(PCE)has been achieved in single-junction OSC[10−13],indicating the feasibility of commercialization.This photovoltaic technology currently faces the performance gap between laboratory cells and large-area modules. | Wei Guan Dong Yuan Juntao Wu Xiaobo Zhou Hong Zhao Fei Guo Lianjie Zhang Ke Zhou Wei Ma Wanzhu Cai Junwu Chen Liming Ding Lintao Hou | 2021 | Journal of Semiconductors2021，42，3： | 2 |
| 6 | Experimental a- nalysis of wet mill load based on vibration signals of labora- tory-scale ball mill shell 显示文摘 | Tang Jian Zhao Lijie Zhou Junwu | 2010 | Minerals Engineering2010，23，： | 1 |
| 7 | Metal-organic frameworks derived low-crystalline NiCo_(2)S_(4)/Co_(3)S_(4) nanocages with dual heterogeneous interfaces for high-performance supercapacitors显示文摘Nickel cobalt bimetallic heterogeneous sulfides are attractive battery-type materials for electrochemical energy storage.However,the precise synthesis of electrode materials that integrate highly efficient ions/electrons diffusion with abundant charge transfer channels has always been challenging.Herein,an effective and concise controllable hydrothermal approach is reported for tuning the crystalline and integrated structures of MOF-derived bimetallic sulfides to accelerate the charge transfer kinetics,and thus enabling rich Faradaic redox reaction.The as-obtained low-crystalline heterogeneous NiCo_(2)S_(4)/Co_(3)S_(4)nanocages exhibit a high specific capacity(1023 C/g at 1 A/g),remarkable rate performance(560 C/g at 10A/g),and outstanding cycling stability(89.6%retention after 5000 cycles).Furthermore,hybrid supercapacitors fabricated with NiCo_(2)S_(4)/Co_(3)S_(4)and nitrogen-doped reduced graphene oxide display an outstanding energy density of 40.8 Wh/kg at a power density of 806.3 W/kg,with an excellent capacity retention of 88.3%after 10000 charge-discharge cycles. | Zixin Jia Youning Wang Jiaqi Chen Zhijie Cao Shugang Pan Yan Zhou Jingwen Sun Junwu Zhu Xin Wang Yongsheng Fu | 2023 | Chinese Chemical Letters2023，34，1： | 1 |
| 8 | Unravelling the genetic basis for skeletal muscle mitochondrial DNA copy number variations in pigs显示文摘Dear Editor,Mitochondria are the center of cellular energy generation and free radical metabolism,with important functions in regulating intracellular calcium levels,cell apoptosis,cell cycle and epigenetic modifications.Mitochondrial DNA copy number(mtDNA-CN)is an indicator of mitochondrial biogenesis and has been associated with several diseases,such as cardiovascular disease,depression,chronic kidney disease and aging in humans(Clyde,2022). | Jiawen Yang Leilei Cui Yifeng Zhang Ziqi Ling Zhou Zhang Yizhong Huang Junwu Ma Shijun Xiao Bin Yang Lusheng Huang | 2024 | Science China(Life Sciences)2024，67，1： | 0 |
| 9 | Quantifying growth and breakage of agglomerates in fluid-particle flow using discrete particle method显示文摘The cohesive solids in liquid flows are featured by the dynamic growth and breakage of agglomerates, and the difficulties in the development, design and optimization of these systems are related to this significant feature.In this paper, discrete particle method is used to simulate a solid–liquid flow system including millions of cohesive particles, the growth rate and breakage rate of agglomerates are then systematically investigated. It was found that the most probable size of the agglomerates is determined by the balance of growth and breakage of the agglomerates the cross point of the lines of growth rate and breakage rate as a function of the particle numbers in an agglomerate, marks the most stable agglomerate size. The finding here provides a feasible way to quantify the dynamic behaviors of growth and breakage of agglomerates, and therefore offers the possibility of quantifying the effects of agglomerates on the hydrodynamics of fluid flows with cohesive particles. | Lingfeng Zhou Junwu Wang Wei Ge Shiwen Liu Jianhua Chen Ji xu Limin Wang Feiguo Chen Ning Yang Rongtao Zhou Lin Zhang Qi Chang Philippe Ricoux Alvaro Fernandez | 2018 | Chinese Journal of Chemical Engineering2018，26，5： | 0 |
| 10 | Performance Limit Evaluation Strategy for Automated Driving Systems显示文摘Efficient detection of performance limits is critical to autonomous driving.As autonomous driving is difficult to be realized under complicated scenarios,an improved genetic algorithm-based evolution test is proposed to accelerate the evaluation of performance limits.It conducts crossover operation at all positions and mutation several times to make the high-quality chromosome exist in candidate offspring easily.Then the normal offspring is selected statistically based on the scenario com-plexity,which is designed to measure the difficulty of realizing autonomous driving through the Analytic Hierarchy Process.The benefits of modified cross/mutation operators on the improvement of scenario complexity are analyzed theoretically.Finally,the effectiveness of improved genetic algorithm-based evolution test is validated after being applied to evaluate the collision avoidance performance of an automatic parallel parking system. | Feng Gao Jianwei Mu Xiangyu Han Yiheng Yang Junwu Zhou | 2022 | Automotive Innovation2022，5，1： | 0 |
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