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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 | 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 |
| 3 | 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 |
| 4 | 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 |
| 5 | 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 |
| 6 | Preparation and structure analysis of expanded graphite-based composites made by phosphoric acid activation显示文摘 | Chengbao Liu Zhigang Chen Xiangle Cheng Zhenbang Wang Xiaotao Duan | 2010 | Journal of Porous Materials2010,,4: | 1 |
| 7 | Population structure and marker–trait association analysis of the US peanut (Arachis hypogaea L.) mini-core collection显示文摘 | Ming Wang Sivakumar Sukumaran Noelle Barkley Zhenbang Chen Charles Chen Baozhu Guo Roy Pittman H. Stalker C. Holbrook Gary Pederson Jianming Yu | 2011 | Theoretical and Applied Genetics2011,,: | 1 |
| 8 | Evaluation of model checkers by verifying message passing programs显示文摘Benchmarks and evaluation are important for the development of techniques and tools. Studies regarding evaluation of model checkers by large-scale benchmarks are few. The lack of such studies is mainly because of the language difference of existing model checkers and the requirement of intensive labor in building models. In this study, we present a large-scale benchmark for evaluating model checkers whose inputs are concurrent models. The benchmark consists of 2318 models that are generated automatically from real-world message passing interface(MPI) programs. The complexities of the models have been inspected to be well distributed and suitable for evaluating model checkers. Based on the benchmark, we have evaluated five state-of-the-art model checkers, i.e., PAT, FDR, Spin, PRISM, and NuSMV, by verifying the deadlock freedom property. The evaluation results demonstrate the ability and performance difference of these model checkers in verifying message passing programs. | Weijiang HONG Zhenbang CHEN Hengbiao YU Ji WANG | 2019 | Science China(Information Sciences)2019,62,10: | 1 |
| 9 | Adsorption and desorption mechanisms on graphene oxide nanosheets: Kinetics and tuning显示文摘A knowledge of the adsorption and desorption behavior of sorbates on surface adsorptive site(SAS)is the key to optimizing the chemical reactivity of catalysts.However,direct identification of the chemical reactivity of SASs is still a challenge due to the limitations of characterization techniques.Here,we present a new pathway to determine the kinetics of adsorption/desorption on SASs of graphene oxide(GO)based on total internal reflectance fluorescence microscopy.The switching on and off of the fluorescent signal of SAS lit by carbon dots(CDs)was used to trace the adsorption process and desorption process.We find that sodium pyrophosphate(PPi)could increase the adsorption equilibrium of CDs thermodynamically and promote the substrate-assisted desorption pathway kinetically.At the single turnover level,it was disclosed that the species that can promote desorption may also be an adsorption promoter.Such discovery provides significant guidance for improving the chemical reactivity of the heterogeneous catalyst. | Xiaodan Qu Qiong Hu Zhongqian Song Zhonghui Sun Baohua Zhang Jialing Zhong Xuyou Cao Yuanjin Liu Bolin Zhao Zhenbang Liu Yujie Shen Yu Bao Zhenxin Wang Yuwei Zhang Li Niu | 2021 | The Innovation2021,2,3: | 0 |
| 10 | HIGHER ORDER ASYMPTOTIC FIELDS AT THE TIP OF A SHARP V-NOTCH IN A POWER-HARDENING MATERIAL显示文摘The higher order asymptotic fields at the tip of a sharp V-notch in a power-hardening materialfor plane strain problem of Mode Ⅰ are derived.The order hierarchy in powers of r for various hardeningexponents n and notch angles β is obtained.The angular distributions of stress for several cases are plotted.The self-similarity behavior between the higher order terms is noticed.It is found that the terms with higherorder can be negleeted for the V-notch angle β>45°. | Wang Weiwei Kuang Zhenbang | 2002 | Acta Mechanica Solida Sinica2002,15,2: | 0 |
| 11 | Targeted Adversarial Examples Generating Method Based on cVAE in Black Box Settings显示文摘In recent years,adversarial examples has become one of the most important security threats in deep learning applications.For testing the security of deep learning models in adversarial environment,many researches focus on generating adversarial examples quickly and efficiently.In order to solve the problems of existing generative adversarial networks based methods which can not effectively generate the targeted adversarial examples in black box settings,and to improve the temporal performance of gradient-based generating methods,an adversarial examples generating method based on conditional Variational autoencoder(cVAE)is proposed in this paper,where a cVAE is designed elaborately to generate adversarial examples without most of the detailed information about the attacked deep learning models,of which the output can be controlled arbitrarily by these crafted inputs,used to test the robustness of deep learning models against adversarial examples.The experimental results show that the proposed method can achieve a comparable attack success rate and a better temporal performance than the existing gradient-based generating methods in black box environment. | YU Tingyue WANG Shen ZHANG Chunrui WANG Zhenbang LI Yetian YU Xiangzhan 无 | 2021 | Chinese Journal of Electronics2021,30,5: | 0 |
| 12 | A soybean NAC homolog contributes to resistance to Phytophthora sojae mediated by dirigent proteins显示文摘Phytophthora sojae infection severely impairs soybean production. We previously identified a dirigent protein, Gm DRR1(Glycine max Disease Resistant Response 1), that increases soybean resistance to P.sojae. However, the molecular basis of Gm DRR1 function remained largely uncharacterized. In the present study, analysis of Gm DRR1-RNAi, Gm DRR1-overexpressing, and CRISPR/Cas9-derived Gmdrr1 mutant lines revealed that Gm DRR1 expression significantly restricted P. sojae growth. Combining coimmunoprecipitation with liquid chromatography–tandem mass spectrometry revealed a Gm DRR1-interacting protein, Gm DRR2, which is homologous to Gm DRR1. An E-coniferyl alcohol coupling assay indicated that Gm DRR1 promotes the synthesis of(+)-pinoresinol, which helps to protect plants from P. sojae. The Gm NAC1(Glyma.05 G025500) transcription factor bound to the Gm DRR1 promoter both in vitro and in vivo to upregulate Gm DRR1 expression. Soybean resistance to P. sojae was increased by overexpression of Gm NAC1. Our findings suggest a novel signaling pathway involving a NAC transcription factor that mediates soybean resistance to P. sojae. Specifically, Gm NAC1 directly induces Gm DRR1 expression to increase resistance of soybean plants to P. sojae. | Guolong Yu Jianan Zou Jinhui Wang Rongsheng Zhu Zhaoming Qi Hongwei Jiang Zhenbang Hu Mingliang Yang Ying Zhao Xiaoxia Wu Chunyan Liu Candong Li Xue Yang Zhendong Zhu Qingshan Chen Yongfu Fu Dawei Xin | 2022 | The Crop Journal2022,10,2: | 0 |
| 13 | ANALYSIS ON CHARACTERISTICS OF AERONAUTICAL WIRELESS CHANNELS显示文摘In aeronautical mobile communication systems,wireless channels characteristics are dif-ferent in scenarios of Parking,En-Route,Taxi,and Arrival/Take-off.By considering fading types,power spectrum density and delay characterization of aeronautical wireless channels,typical parame-ters of aeronautical wireless channels model are investigated to analyze characteristics of aeronautical wireless channels. | Wang Zhenbang Wang Zhenyong Li Zhuoshi | 2011 | Journal of Electronics(China)2011,28,2: | 0 |
| 14 | Multi-dimensional size effects and representative elements for nonpersistent fractured rock masses: A perspective of geometric parameter distribution显示文摘This study takes a fractured rock mass in the Datengxia Hydropower Station,China as an example to analyze the size effects and determine the representative elementary sizes.A novel method considering geometric parameter distributions is proposed in this work.The proposed method can quickly and simply determine the size effects and representative elementary sizes.Specifically,geometric parameter distributions,including fracture frequency,size and orientation,are generated on the basis of the Bernoulli trial and Monte Carlo simulation.The distributions are assessed using the coefficient of variation(CV),and the acceptable variations for CV(5%,10%and 20%)are used to determine representative elementary sizes.Generally,the representative element of rock masses is the representative elementary volume(REV).The present study extends the representative element to other dimensions,i.e.representative elementary length(REL)and representative elementary area(REA)for one and two dimensions,respectively.REL and REA are useful in studying the size effects of one-(1D)and twodimensional(2D)characteristics of rock masses.The relationships among multi-dimensional representative elementary sizes are established.The representative elementary sizes reduce with the increase in the dimensions,and REA and REV can be deduced by REL.Therefore,the proposed method can quickly and simply determine REL and further estimate REA and REV,which considerably improves the efficiency of rock mass analysis. | Jia Wang Wen Zhang Chun Tan Zhenbang Nie Wenliang Ma Donghui Chen Qi Sun | 2023 | Journal of Rock Mechanics and Geotechnical Engineering2023,15,9: | 0 |
| 15 | Genome-wide analysis of soybean DnaJA-family genes and functional characterization of GmDnaJA6 responses to saline and alkaline stress显示文摘Plant Dna JA proteins act as molecular chaperones in response to environmental stressors.The purpose of this study was to characterize the function and regulatory mechanisms of Dna JA genes in soybean.Gene expression profiles in various soybean tissues at various stages of development indicated that Gm Dna JAs function in the coordination of stress and plant hormone responses.Gm Dna JA6 was identified as a candidate regulator of saline and alkaline stress resistance and Gm Dna JA6 overexpression lines showed increased soybean saline and alkaline tolerance.Dna J interacted with Hsp70,and Gm Hsp70 increased the saline and alkaline tolerance of plants with chimeric soybean hairy roots. | Binshuo Zhang Zhen Liu Runnan Zhou Peng Cheng Haibo Li Zhiyang Wang Ying Liu Mingyang Li Zhenqing Zhao Zhenbang Hu Qingshan Chen Xiaoxia Wu Ying Zhao | 2023 | The Crop Journal2023,11,4: | 0 |