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Seismic responses of the steel-strip reinforced soil retaining wall with full-height rigid facing from shaking table test

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Journal of Mountain Science 2018年第5期15卷 1137-1152页

作者： CAO Li-cong FU Xiao WANG Zhi-jia ZHOU Yong-yi liu fei-cheng ZHANG Jian-jing Key Laboratory of Transportation Tunnel Engineering Ministry of Education School of Civil Engineering Southwest Jiaotong University Department of Geotechnical Engineering School of Civil Engineering Southwest Jiaotong University Department of Civil Engineering and Architecture Hainan University

To investigate the seismic response of the steel-strip reinforced soil retaining wall with fullheight rigid facing in terms of the acceleration in the backfill, dynamic earth pressure in the backfill, the displacements on the facing and the dynamic reinforcement strain distribution under different peak acceleration, a large 1-g shaking table test was performed on a reduced-scale reinforced-earth retaining wall model. It was observed that the acceleration response in non-strip region is greater than that in potential fracture region which is similar with the stability region under small earthquake,while the acceleration response in potential fracture region is greater than that in stability region in middle-upper of the wall under moderately strong earthquakes. The potential failure model of the rigid wall is rotating around the wall toe. It also was discovered that the Fourier spectra produced by the inputting white noises after seismic wave presents double peaks, rather than original single peak, and the frequency of the second peak trends to increase with increasing the PGA(peak ground amplitude) of the excitation which is greater than 0.4 g. Additionally,the non-liner distribution of strip strain along the strips was observed, and the distribution trend was not constant in different row. Soil pressure peak value in stability region is larger than that in potential fracture region. The wall was effective under 0.1 g-0.3 g seismic wave according to the analyses of the facing displacement and relative density. Also, it was discovered that the potential failure surface is corresponds to that in design code, but the area is larger. The results from the study can provide guidance for a more rational design of reinforced earth retaining walls with full-height rigid facing in the earthquake zone.

关键词： Reinforced soil retaining walls Potentialfailure surface Full-height rigid facing Steel strip Seismic behaviors 1-g shaking table test

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Cloning and Analysis of the Promoters of Two OsRhoGDIs Genes from Rice

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Agricultural Sciences in China 2008年第7期7卷 789-795页

作者： ZHANG Li-juan LIANG Wei-hong liu Yue-xia liu Xiao-fei HOU cheng-qian BI Jia-jia College of Life Science Henan Normal University Xinxiang 453007 P.R. China

OsRacD, belonging to rice （Oryza sativa L. ssp. japonica） Rho family of the small GTPases, is a pivotal gene involved in rice photoperiod fertility conversion of photoperiod sensitive genic male sterile rice which influences the rice fertility via controlling the pollen tube growth. Using OsRacD as bait, two GDP dissociation inhibitor genes designated as OsRhoGDI1 and OsRhoGDI2 were screened by yeast two-hybrid system. To further study the regulation mechanism of OsRhoGDIs, and also the relationships between OsRhoGDIs and OsRacD, the upstream regulation sequences of OsRhoGDI1 and OsRhoGDI2 were cloned by PCR, and the cis-elements in the promoters were predicted using internet tools in this study. The results showed that there were several kinds of response elements, such as phytohormone response elements, lightregulated elements and adversity induced elements in the promoters of OsRhoGDIs, some of which were similar. Comparing with the promoter of OsRacD, several pollen tube germination related elements were found. On one hand, the expression and regulation mechanism of OsRhoGDIs were complex, they may be regulated by several signaling pathways commonly, and the regulation mechanisms were similar to some extent. On the other hand, it was suggested that the fertility of photoperiod sensitive genic male sterile rice may be controlled by the cooperative expression of OsRhoGDIs and OsRacD.

关键词： rice OsRhoGDIs Rho OsRacD cis-acting elements

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Three-dimensional fracture of UO2 ceramic pellets by phase field modeling

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 169-180页

作者： Wei Xiong Xuan Ye Hongzhang cheng Xiaoming liu Institute of Nuclear and New Energy Technology Collaborative Innovation Center of Advanced Nuclear Energy Technology Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education Tsinghua University State Key Laboratory of Nonlinear Mechanics Institute of Mechanics Chinese Academy of Sciences School of Engineering Science University of Chinese Academy of Sciences

Fracture is the primary failure type for the UO2ceramic pellets,which are operated under irradiation and thermal processes,and physically confined by the *** this work,by combining closely coupled physical processes of heat conduction,heat transfer,and mechanical deformation with the cohesive phase field framework,we proposed a high-precision modeling of quasistatic cracking of three-dimensional （3D） UO2ceramic fuel pellets under high temperature and *** simulation results agree well with the experimental results,indicating that the proposed method has the potential to capture 3D crack modes in the interested time ***,we studied the relation of the 3D fracture patterns of fuel pellets with the peak power *** was found that the power level plays a critical role in determining the competition between radial and circumferential cracks,as well as transverse penetrating cracks.

关键词： phase field method nuclear fuel pellet coupled thermo-mechanical model thermal fracture

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Observation of topological charge transformations in acoustic vortex using passive periodic systems

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 140-147页

作者： Di-Chao Chen Xie liu Changqing Xu Da-Jian Wu Ying cheng Xiao-Jun liu School of Physics and Technology Nanjing Normal University Key Laboratory of Modern Acoustics School of Physics Nanjing University

Vortex transmutation utilizes a periodic system, which not only enables the alteration of the topological charge(TC) of unstable input vortices but also facilitates their transformation into stable structures. This approach is crucial for investigating the characteristics of vortices in various wave systems. Here, we achieve acoustic vortex TC transmutation by employing a welldesigned dual-structured plate external system(DPES). The interactions between the acoustic vortex and the finite-order discrete rotational symmetry lead to the transformation of its topological charge when complete rotational symmetry is broken to Nthorder discrete symmetry. Our results experimentally demonstrate the acoustic vortex TC transmutation based on passive artificial structures, enabling numerous applications in particle manipulation and information multiplexing as well as advancing our understanding and control over free-space acoustic vortices.

关键词： acoustic vortex topological charge transformation artificial structure

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Co-production of hydrogen, oxygen, and electricity via an integrated solar-driven system with decoupled water electrolyzer and Na-Zn ion battery

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Journal of Energy Chemistry 2025年第1期100卷 621-627页

作者： fei Lv Longjie liu Jiazhe Wu Pengfei Wang Lixia Pan Dengwei Jing Yubin Chen International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University

Combining water electrolysis and rechargeable battery technologies into a single system holds great promise for the co-production of hydrogen （H2） and ***,the design and development of such systems is still in its ***,an integrated hydrogen-oxygen （O2）-electricity co-production system featuring a bipolar membrane-assisted decoupled electrolyzer and a Na-Zn ion battery was established with sodium nickelhexacyanoferrate （NaNiHCF） and Zn2+/Zn as dual redox *** decoupled electrolyzer enables to produce H2and O2in different time and space with almost 100%Faradaic efficiency at 100 mA ***,the charged NaNiHCF and Zn electrodes after the electrolysis processes formed a Na-Zn ion battery,which can generate electricity with an average cell voltage of 1.75 V at 10 m A *** connecting Si photovoltaics with the modular electrochemical device,a well-matched solar driven system was built to convert the intermittent solar energy into hydrogen and electric energy with a solar to hydrogen-electricity efficiency of 16.7%,demonstrating the flexible storage and conversion of renewables.

关键词： Hydrogen Electricity Decoupled water electrolyzer Na-Zn ion battery Solar energy

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Preparation of FeCoNi medium entropy alloy from Fe^(3+)-Co^(2+)-Ni^(2+)solution system

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 92-101页

作者： Zongyou cheng Qing Zhao Mengjie Tao Jijun Du Xingxi Huang chengjun liu Key Laboratory for Ecological Metallurgy of Multimetallic Mineral(Ministry of Education) Northeastern UniversityShenyang 110819China School of Metallurgy Northeastern UniversityShenyang 110819China Engineering Research Center of Frontier Technologies for Low-carbon Steelmaking(Ministry of Education) Shenyang 110819China

In recent years,medium entropy alloys have become a research hotspot due to their excellent physical and chemical *** controlling reasonable elemental composition and processing parameters,the medium entropy alloys can exhibit similar properties to high entropy alloys and have lower *** this paper,a FeCoNi medium entropy alloy precursor was prepared via sol-gel and coprecipitation methods,respectively,and FeCoNi medium entropy alloys were prepared by carbothermal and hydrogen *** phases and magnetic properties of FeCoNi medium entropy alloy were *** showed that FeCoNi medium entropy alloy was produced by carbothermal and hydrogen reduction at 1500℃.Some carbon was detected in the FeCoNi medium entropy alloy prepared by carbothermal *** alloy prepared by hydrogen reduction was uniform and showed a relatively high ***,the hydrogen reduction product exhibited better saturation magnetization and lower coercivity.

关键词： medium entropy alloy sol-gel co-precipitation carbothermal hydrogen reduction

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基于协作模式的工作流最优员工分配方法

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软件学报 2018年第11期29卷 3340-3354页

作者：俞东进王娇娇柳诚飞杭州电子科技大学计算机学院浙江杭州310018 Department of Computer Science and Software Engineering Swinburne University of Technology

一个业务流程的执行,一般需要由多个员工共同协作完成.当员工完成流程中某项任务的能力已知时,员工之间的协作能力对于整个流程的执行性能就会有决定性的影响.通常,流程中执行活动的员工之间的协作能力越高,整个流程实例的运行效率就会... 详细信息

一个业务流程的执行,一般需要由多个员工共同协作完成.当员工完成流程中某项任务的能力已知时,员工之间的协作能力对于整个流程的执行性能就会有决定性的影响.通常,流程中执行活动的员工之间的协作能力越高,整个流程实例的运行效率就会越高.提出了一种基于协作模式的最优员工分配方法.该方法首先通过分析历史流程日志,计算不同员工在执行不同活动时彼此之间的协作能力;然后,从历史日志中挖掘出协作较好的员工分配方式(即协作水平较高的协作模式);最后使用编码的方式将这些模式与待分配流程快速匹配,选出可使流程协作水平达到最优的员工分配方式.实验结果说明,该方法能够快速、有效地实现流程协作最优的员工分配.

关键词：协作模式员工分配实体轨迹对齐工作流

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Infrared Real-time Thermal System Based on DSP

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Semiconductor Photonics and Technology 2001年第2期7卷 76-79页

作者： ZHANG Xiao-fei, liu cheng-kang, YUAN Xian-hui (Photoelectricity Information College, Chongqing University, Chongqing 400044, CHN) 重庆大学光电工程学院重庆 400044

An infrared real-time imaging system using DSP(digital signal processor) as the kernel of digital signal processing board is presented. In this system, the imaging difference and nonuniformity correction method is developed on the chip taking advantage of DSP with high speed. The method combines hardware and software together, so that the difficulty for realizing such a method with other hardware can be overcome.

关键词： DSP IRFPA Nonuniformity Thermal system

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癌症长期生存者的疼痛管理

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医学与哲学（B） 2017年第8期38卷 15-17,26页

作者：刘勇刘菲曹成松东南大学医院附属徐州医院/徐州市中心医院肿瘤内科江苏徐州221009 北海舰队门诊部山东青岛266071

近年来,随着癌症诊治水平的提高,有越来越多的癌症患者获得长期生存。许多癌症长期生存者经历了疾病和治疗带来的长期的躯体和/或社会心理症状。疼痛是其中最常见的症状,它严重影响了生存者的生活质量。癌症长期生存者的疼痛具有独特的... 详细信息

近年来,随着癌症诊治水平的提高,有越来越多的癌症患者获得长期生存。许多癌症长期生存者经历了疾病和治疗带来的长期的躯体和/或社会心理症状。疼痛是其中最常见的症状,它严重影响了生存者的生活质量。癌症长期生存者的疼痛具有独特的病因学和症状学特征。为更好的管理癌症长期生存者的疼痛症状,本文就相关现状进行综述。

关键词：疼痛癌症幸存者管理

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Unraveling the impacts of intermolecular interaction on morphology evolution for highly efficient organic solar cells and modules

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Science China Chemistry 2025年第1期68卷 264-272页

作者： Xueqing Ma Yingying cheng Yuqiang liu Xinming Zheng Guangliu Ran Hongxiang Li Xinyue Cui Andong Zhang Wenkai Zhang Pei cheng Wenchao Huang Zhishan Bo Beijing Key Laboratory of Energy Conversion and Storage Materials College of Chemistry Beijing Normal University College of Textiles and Clothing State Key Laboratory of Bio-fibers and Eco-textiles Qingdao University Key State Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and EngineeringWuhan University of Technology Department of Physics and Applied Optics Beijing Area Major Laboratory Center for Advanced Quantum Studies Beijing Normal University State Key Laboratory of Polymer Materials Engineering College of Polymer Science and Engineering Sichuan University

Understanding the effect of intermolecular interaction on the growth dynamic of active layers is critical for advancing organic solar cells(OSCs). However, the diverse structure of donors and acceptors makes the research challenging. Additives with customizable structures and properties could simplify this complexity. Herein, we meticulously tailor two additives of 3,4-ethylenedioxythiophene(EDOT) and 2,5-dibromo-3,4-ethylenedioxythiophene(DBEDOT), possessing distinct intermolecular interaction features to elaborate the inherent relationship. It is found that varied interaction strengths can alter film formation processes. The enhanced intermolecular interaction between the DBEDOT and non-fullerene acceptor BTP-e C9-4F results in pre-aggregation and longer crystallization duration of BTP-e C9-4F, facilitating the formation of films with compact molecular packing and decent phase separation. Thus, exciton dissociation and charge transport become more efficient. Finally, devices processed with DBEDOT exhibit a remarkable power conversion efficiency of 19.35% in small-area OSCs and 14.11% in bladecoated 5 cm × 5 cm organic solar mini-modules. Especially, OSCs can maintain 80% of their initial efficiency after continuous annealing at 85 °C for over 2,100 h.

关键词： organic solar cell non-fullerene acceptor film growth molecular packing intermolecular interaction

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