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| 1 | THE INTERACTION BETWEEN CRACK AND ELECTRIC DIPOLE OF PIEZOELECTRICITY显示文摘Discrete dipoles located near the crack tip play an important role in nonlinear electric fieldinduced fracture of piezoelectric ceramics.A physico-mathematical model of dipole is constructed of two gen-eralized concentrated piezoelectric forces with equal density and opposite sign.The interaction between crackand electric dipole in piezoelectricity is analyzed.The closed form solutions,including those for stress andelectric displacement,crack opening displacement and electric potential,are obtained.The function of pi-ezoelectric anisotropie direction,p_a(θ)=cosθ+p_asinθ,can be used to express the influence of a dipole’sdirection.In the case that a dipole locates near crack tip,the piezoelectric stress intensity factor is a powerfunction with-3/2 index of the distance between dipole and crack tip. | Wang Jiwei Kuang Zhenbang | 2000 | Acta Mechanica Solida Sinica2000，13，4： | 7 |
| 2 | Characterization and properties of a Sr2Si5N8:Eu^2+-based light-conversion agricultural film显示文摘In this paper,the fracture surfaces of a light-conversion film were observed using a scanning electron microscope(SEM),and then,the fluorescence spectra and mechanical properties of the film were tested.The SEM results show that the average diameter of the light conversion agent is 500 nm.The results of the mechanical properties tests show that the tensile strengths of light-conversion film increase from9.86 to 12.16 MPa and that the strain at breakage increases from 2.37%to 2.75%.In addition,the application effects of the light-co nversion film were studied.The results indicate that plant height,length of the maximum leaf,width of the maximum leaf and breadth of the plants increase by 24.43%,15.30%,15.60%and 19.07%,respectively.The quality of Chinese flowering cabbages treated with the lightconversion film is superior,including a 9.09%increase in the soluble protein content,a 21.27%increase in the polyphenol content,and a 19.15%increase in the soluble sugar content.Based on these results,light-conversion films can be applied in agricultural production. | Weibin Wu Zhenbang Zhang Riyue Dong Gening Xie Jianxian Zhou Kejue Wu Haonan Zhang Qianpei Cai Bingfu Lei | 2020 | Journal of Rare Earths2020，38，5： | 7 |
| 3 | PROPAGATION OF SURFACE ACOUSTIC WAVES IN PRESTRESSED ANISOTROPIC LAYERED PIEZOELECTRIC STRUCTURES显示文摘The propagation of surface acoustic waves in layered piezoelectric structures withinitial stresses is investigated.The phase velocity equations are obtained for electrically free andshorted cases,respectively.Effects of the initial stresses on the phase velocity and the electrome-chanical coupling coefficient for the fundamental mode of the layered piezoelectric structures arediscussed.Numerical results for the c-axis oriented fihn of LiNbO3 on a sapphire substrate aregiven.It is found that the fractional change in phase velocity is a linear function with the ini-tial stresses,and the electromechanical coupling factor increases with an increase of the absolutevalues of the compressive initial stresses.The results are useful for the design of surface acousticwave devices. | Liu Hua Kuang Zhenbang Cai Zhengming Wang Tiejun Wang Zikun | 2003 | Acta Mechanica Solida Sinica2003，16，1： | 5 |
| 4 | Multi-scale Spatial Patterns and Influencing Factors of Rural Poverty:A Case Study in the Liupan Mountain Region, Gansu Province, China显示文摘The important role of spatial scale in exploring the geography of poverty as well as its policy implications has been noticed but with limited knowledge. To improve such limited understanding, we mainly investigated the spatial patterns and influencing factors of rural poverty(indicated by poor population and poverty incidence) at three different administrative levels in the Liupan Mountain Region, one of the fourteen poorest regions in China. Our results show that from a global perspective, poor areas are clustered significantly at the county-, township-, and village-level, and more greatly at a lower level. Locally, there is spatial mismatch among poverty hotspots detected not only by the same indicator at different levels but also by different indicators at the same level. A scale effect can be found in the influencing factors of rural poverty. That is, the number of significant factors increases, but the degree of their association with poverty incidence decreases at a lower level. Such scale effect indicates that poverty incidence at lower levels may be affected by more complex factors, including not only the new local ones but also the already appeared non-local ones at higher levels. However, the natural conditions tend to play a scale-independent role to poverty incidence. In response to such scale-dependent patterns and factors, anti-poverty policies can be 1) a multilevel monitoring system to reduce incomplete or even misleading single-level information and understanding; 2) the village-based targeting strategy to increase the targeting efficiency and alleviate the mentioned spatial mismatch; 3) more flexible strategies responding to the local impoverishing factors, and 4) different task emphasises for multilevel policymakers to achieve the common goal of poverty reduction. | MA Zhenbang CHEN Xingpeng CHEN Huan | 2018 | Chinese Geographical Science2018，28，2： | 4 |
| 5 | Cross-layer design of LT codes and LDPC codes for satellite multimedia broadcast/multicast services显示文摘According to large coverage of satellites,there are various channel states in a satellite broadcasting network.In order to introduce an effcient rateless transmission method to satellite multimedia broadcasting/multicast services with fnite-length packets,a cross-layer packet transmission method is proposed with Luby transform(LT) codes for effciency in the network layer and low density parity check(LDPC) codes for reliability in the physical layer jointly.The codewords generated from an LT encoder are divided into fnite-length packets,which are encoded by an LDPC encoder subsequently.Based on noise and fading effects of satellite channels,the LT packets received from an LDPC decoder either have no error or are marked as erased,which can be modeled as a binary erasure channels(BECs).By theoretical analysis on LT parameters and LDPC parameters,the relationships between LDPC code rates in the physical layer and LT codes word lengths in the network layer are investigated.With tradeoffs between the LT codes word lengths and the LDPC code rates,optimized cross-layer solutions are achieved with a binary search algorithm.Verifed by simulations,the proposed solution for cross-layer parameters design can provide the best transmission mode according to satellite states,so as to improve throughput performance for satellite multimedia transmission. | Wang Zhenbang Wang Zhenyong Gu Xuemai Guo Qing | 2013 | Chinese Journal of Aeronautics2013，26，5： | 3 |
| 6 | Some variational principles in electroelastic media under finite deformation显示文摘It is proposed that the universal thermodynamic energy variational principle is in-cluded in the first law of thermodynamics. Some variational principles in the elec-troelastic media under finite deformation are derived from this universal thermo-dynamic variational principle. It is suggested that in the general electroelastic analysis the environment should be considered together with the discussed elec-troelastic medium. For the variational principle of nonlinear electroelastic media the variation of the electric potential is coupled with the virtual displacement,and the variation of the initial volume should be considered. The Maxwell stress in the initial configuration is naturally derived from this variational principle and it is unique in the second order precision. | KUANG ZhenBang Department of Engineering Mechanics,Shanghai Jiaotong University,Shanghai 200240,China | 2008 | Science China(Physics,Mechanics & Astronomy)2008，51，9： | 3 |
| 7 | Ground demonstration system based on in-orbit assembly oriented manipulator flexible force control显示文摘To eliminate the load weight limit of carrier rockets and reduce the burden on support structures,in-orbit assembly is a key technology to make design of scattering a large diameter telescope into submirror modules,which requires smooth operation of assembly robots,and flexible force control technology is necessary. A ground demonstration system is presented for in-orbit assembly focusing on flexible force control. A six-dimensional force/torque sensor and its data acquisition system are used to compensate for gravity. For translation and rotation,an algorithm for flexible control is proposed. A ground transportation demonstration verifies accuracy and smoothness of flexible force control,and the transportation and assembly task is completed automatically. The proposed system is suitable for the development of in-orbit assembly robots. | 乔冠宇 Gao Huibin Peng Cheng Gu Yingying Xu Zhenbang Xu Boqian | 2017 | High Technology Letters2017，23，3： | 2 |
| 8 | A MIXED ELECTRIC BOUNDARY VALUE PROBLEM FOR AN ANTI-PLANE PIEZOELECTRIC CRACK显示文摘The analytical continuation method is adopted to solve a mixed electric boundary value problem for a piezoelectric medium under anti-plane deformation. The crack face is partly conductive and partly impermeable. The results show that the stress intensity factor is identical with the mode III stress intensity factor independent of the conducting length. But the electric field and the electric displacement are dependent on the electric boundary conditions on the crack faces and are singular not only at the crack tips but also at the junctures between the impermeable part and conducting portions. | Huang Zhenyu Kuang Zhenbang (Department of Engineering Mechanics,Shanghai JiaotongUniversity,Shanghai 200240,China) | 2003 | Acta Mechanica Solida Sinica2003，16，2： | 2 |
| 9 | Preparation and photocatalytic performance ofFe( III) -amidoximated PAN fiber complex for oxidativedegradation of azo dye under visible light irradia-tion 显示文摘 | DONG Yongchun HAN Zhenbang LIU Chunyan etal | 2010 | Science of the Total Environment2010，，408： | 1 |
| 10 | On Maximal Weight Moment and Overturn Tendency of Multi-Sucker Wall-Climbing Mechanism显示文摘1IntroductionThesafetyofwalclimbingrobotisofgreatimportanceinrobotdesignandgaitprogramming.Safetyrequirementsincludebothan... | Qian Jinwu Gong Zhenbang (School of Mechanical and Electronic Engineering, Shanghai University) Zhang Qixian (Beijing University of Aeronautics and Astronautics) | 1999 | Advances in Manufacturing1999，，2： | 1 |
| 11 | Development of a mechanical semi-active vibration absorber 显示文摘 | XU Zhenbang GONG Xinglong CHEN Xianmin | 2011 | Advances in Vibration Engineering2011，10，3： | 1 |
| 12 | Copper-iron bimetal modified PAN fiber complexes asnovel heterogeneous Fenton catalysts for degradation oforganic dye under visible light irradiation 显示文摘 | HAN Zhenbang DONG Yongchun DONG Siming | 2011 | Journalof Hazardous Materials2011，，189： | 1 |
| 13 | Application of face-graph in heavy metal pollution assessment in river sediment显示文摘Applicationofface-graphinheavymetalpollutionassessmentinriversedimentJiaZhenbang;ZhaoZhijie(GeographyDepartment,PekingUnivers... | Jia Zhenbang Zhao Zhijie(Geography Department, Peking University,Beijing 100871, China)Zhang Hui(Chinese Research Academy of Environmental Sciences,Beijing, China)Zhang Baoquan Zhao Lihua(Environmental Protection Survey Station, Benxi, China) | 1994 | Journal of Environmental Sciences1994，6，2： | 1 |
| 14 | Study on Active Drive System for Colonoscope显示文摘The paper deals with active drive system for colonoscope. The system is mainly composed of soft mobile mechanism for earthworm locomotion and turning mechanism based on shape memory effect. The soft mobile mechanism contacts colon wall with air in inflatable balloons, so the robot has better soft and non invasive properties. The turning mechanism can be actively bent by shape memory alloy components. It ensures the colonoscope to adapt to the tortuous shape of colon. Some experiment results are given in the paper. | 米智楠 Gong Zhenbang Mi Zhiwei Qian Jinwu Shen Linyong | 2001 | High Technology Letters2001，7，4： | 1 |
| 15 | Compact Sn/C composite realizes long-life sodium-ion batteries显示文摘Sodium-ion batteries are considered as a promising low-cost alternative to commercial lithium-ion batteries.However,the harsh preparation conditions and unsatisfactory electrochemical performance of most sodium-ion batteries anode materials limit their commercial applications.Herein,we develop a new alloying/dealloying method for producing nano-scale tin from freezing point to room temperature.Due to the unique surface properties of tin particles,a tin/carbon composite with a compact structure is obtained.When coupled with a diglyme-based electrolyte,tin/carbon composite(contains 60 wt.%tin)exhibits a reversible capacity of 334.8 mAh·g^(−1)after 1,000 cycles at 500 mA·g^(−1).An as-prepared tin/carbon anode||high-load vanadium phosphate sodium full cell(N/P ratio:1.07)shows a stable cycle life of 300 cycles at 1 A·g^(−1).The achievement of such an excellent performance can be ascribed to the carbon conductive network and robust solid electrolyte interphase film,which facilitates the fast transportation of electrons and Na ions.This work provides a new idea to prepare other alloyed anode materials for highperformance sodium-ion batteries. | Mingdong Tan Shuanghui Han Zhenbang Li Hao Cui Danni Lei Chengxin Wang | 2023 | Nano Research2023，16，3： | 1 |
| 16 | Com- parative study on the mechanical and thermal properties of two different modified PAN fibers and their Fe complexes 显示文摘 | Han Zhenbang Dong Yongchun Dong Siming | 2010 | Materials and Design2010，31，6： | 1 |
| 17 | Stress analysis of electrostrictive material with an elliptic defect显示文摘 | Quan Jiang Zhenbang Kuang | 2003 | Science in China Series G: Physics Mechanics and Astronomy2003，，5： | 1 |
| 18 | 显示文摘 | Han Zhenbang DongYongchun Dong Siming | 2011 | Journal of Hazardous Materials2011，189，1： | 1 |
| 19 | Three-dimensional elastic stress fields near notches in finite thickness plates 显示文摘 | LI Zhenhuan GUO Wanlin KUANG Zhenbang | 2000 | International Journal of Solids and Structures2000，37，5： | 1 |
| 20 | Recovery of iron oxide concentrate from high-sulfur and low-grade pyrite cinder using an innovative beneficiating process显示文摘 | Binbin He Xike Tian Yan Sun Chao Yang Yanglin Zeng Yanxin Wang Suxin Zhang Zhenbang Pi | 2010 | Hydrometallurgy2010，，2： | 1 |
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