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Journal of Thermal Science 2025年第1期 1-23页

作者： CHEN Zhifeng JIA Li YIN Liaofei DANG Chao REN Honglei zhang zhiqiang Beijing Key Laboratory of Flow and Heat Transfer of Phase Changing in Micro and Small Scale School of MechanicalElectronic and Control EngineeringBeijing Jiaotong University

Li-ion battery is an essential component and energy storage unit for the evolution of electric vehicles and energy storage technology in the ***,in order to cope with the temperature sensitivity of Li-ion battery and maintain Li-ion battery safe operation,it is of great necessary to adopt an appropriate battery thermal management system(BTMS).In this paper,the current main BTM strategies and research hotspots were discussed from two aspects:small-scale battery module and large-scale electrochemical energy storage power station(EESPS).The practical application situation,advantages and disadvantages,and the future development trend of each heat dissipation method(air,liquid,PCM,heat pipe,hybrid cooling) were described in *** them,the air cooling and liquid cooling were reviewed in-depth based on the engineering *** PCM,heat pipe and hybrid cooling were reviewed extensively based on the latest *** research provides a comprehensive understanding for the BTMS in all scales.

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A Review on Flow Boiling of the Fluid with Lower Boiling Point in Micro-Channels

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Journal of Thermal Science 2024年第1期33卷 1-17页

作者： zhang zhiqiang JIA Li DANG Chao Beijing Key Laboratory of Flow and Heat Transfer of Phase Changing in Micro and Small Scale School of MechanicalElectronic and Control EngineeringBeijing Jiaotong UniversityBeijing 100044China

With the advancement of micro machining technology,the high-heat-flux removal from miniature electronic devices and components has become an attractive *** boiling in micro-channels is an optimal form of heat transfer and has been widely employed in high-heat-flux cooling *** comprehensively-reviewed article focused on the available recent literatures of experimental investigation regarding the flow boiling heat transfer and unstable behaviors of the fluid with lower boiling point in *** thermal-fluid characteristics and potential heat transfer mechanisms of low-boiling-point fluids flow boiling in different narrow passages were summarized and *** literatures regarding the pressure drop and occurrence of the unstable phenomena existing in two-phase flow boiling process were also *** emphasis was given to the heat transfer enhancement methods as well as instability elimination,and various methods such as modification of surface and channel flow geometries were *** future researches in the field of micro-scale flow boiling were suggested.

关键词： flow boiling lower boiling point fluids mini/micro-channels instabilities enhancement suppression

Correlations between phytohemagglutinin response and leukocyte profile,and bactericidal capacity in a wild rodent

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Integrative Zoology 2015年第3期10卷 302-310页

作者： zhiqiang zhang Zhijun ZHAO College of Animal Science and Technology Anhui Agricultural UniversityHefeiChina College of Life and Environmental Science Wenzhou UniversityWenzhouChina

phytohemagglutinin(PHA)-induced swelling is widely used to investigate cell-mediated and innate immunity across different vertebrate ***,its physiological mechanism is still an open question due to the complexity of the involved immune *** the present study,we measured the synchronous variations of PHA response,the proportion of different subtypes of leukocytes,as well as serum bactericidal capacity in circulation blood at 6,12 and 24 h after PHA versus PBS injection in striped hamster,Cricetulus ***,the results showed that PHA responses reached a peak at 6 h postinjection,then sharply declined at 12 h and 24 h *** bactericidal capacity was higher at 6 h and 12 h than at 24 *** proportion of different subtypes of leukocytes,as well as the ratio of neutrophils to lymphocytes did not display significant changes across different time ***,PHA response was positively correlated with the proportion of neutrophils and serum bactericidal *** proportion of monocytes was negatively correlated with that of eosinophils and *** proportion of basophils was negatively correlated with that of *** results indicate that earlier enhanced PHA response is important for the striped hamster to cope with changing environmental conditions due to its small body mass,and the increased components of innate immunity in circulation blood may contribute to the enhancement of PHA swelling response.

关键词： Cricetulus barabensis neutrophils phytohemagglutinin serum bactericidal capacity striped hamster

A simplified multisupport response spectrum method

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Earthquake Engineering and Engineering Vibration 2012年第2期11卷 243-256页

作者： Ye, Jihong zhang, zhiqiang Liu, Xianming Key Laboratory of Concrete and Prestressed Concrete Structure of Ministry of Education Southeast University Nanjing 210096 China China Architecture Design and Research Group Beijing 100044 China

A simplified multisupport response spectrum method is *** structural response is a sum of two components of a structure with a first natural period less than 2 *** first component is the pseudostatic response caused by the inconsistent motions of the structural supports,and the second is the structural dynamic response to ground motion *** method is formally consistent with the classical response spectrum method,and the effects of multisupport excitation are considered for any modal response spectrum or modal *** the seismic inputs at each support are the same,the support displacements caused by the pseudostatic response become rigid body *** response spectrum in the case of multisupport excitations then reduces to that for uniform *** other words,this multisupport response spectrum method is a modification and extension of the existing response spectrum method under uniform ***,most of the coherency coefficients in this formulation are simplified by approximating the ground motion excitation as white *** results indicate that this simplification can reduce the calculation time while maintaining ***,the internal forces obtained by the multisupport response spectrum method are compared with those produced by the traditional response spectrum method in two case studies of existing long-span *** the effects of inconsistent support displacements are not considered in the traditional response spectrum method,the values of internal forces near the supports are *** regions are important potential failure points and deserve special attention in the seismic design of reticulated structures.

关键词： multisupport excitation uniform excitation response spectrum method coherency coefficients simplification comparative study

Fast fine acquisition algorithm of GPS receiver aided by INS information

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Journal of Systems Engineering and Electronics 2011年第2期22卷 300-305页

作者： Lufeng Zhu Chunxi zhang zhiqiang Ma School of Instrumentation & Optoelectronics Engineering Beihang University Beijing 100191 P. R. China

Acquisition time of global position system （GPS） receiver, which is the main factor contributes to time to first fix （TTFF）, can be shortened by estimating the Doppler frequency shift through external inertial navigation system （INS） information and almanac data and reducing the searching area. The traditional fast acquisition is analyzed, the fast acquisition of the GPS receiver aided is presented by INS information, and the signal is fine captured by spectrum zooming. Then the algorithm is simulated by sampled GPS intermediate frequency （IF） signal and the result verifies that this acquisition can dramatically improve the capability of GPS receiver and reduce its acquisition time.

关键词： inertial navigation system (INS) aid spectrum zooming acquisition time global position system (GPS) receiver.

Effect of Flexible Back on Energy Absorption during Landing in Cats： A Biomechanical Investigation

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Journal of Bionic Engineering 2014年第4期11卷 506-516页

作者： zhiqiang zhang Jialing Yang Hui Yu Institute of Solid Mechanics Beo'ing University of Aeronautics and Astronautics Beijing 100191 P. R. China

Cats are characterized by their excellent landing ability. During the landing, they extend and bend their flexible backs. This study was undertaken to examine the effect of flexible back on impact attenuation. We collected kinematic and ground reaction force data from cats performing self-initiated jump down at different heights. Based on these measurements, the mechanical energy and elastic back energy were calculated. Further, we derived a beam model to predict back stiffness from the morphology of the vertebral spines. We found that cat could actively modulate the bending level of flexible back and the landing angle at different heights, making some kinetic energy be stored briefly as elastic strain energy in the back. This mechanism allows cat to reduce the kinetic energy dissipated by limbs and improve the efficiency of energy absorption. These results can provide bio- logical inspiration for the design of a flexible spine on a landing robot, and we anticipated their use in the energy absorption equipments for planetary exploration.

关键词： cat biomechanics landing flexible back energy absorption

Strength failure of spatial reticulated structures under multi-support excitation

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Earthquake Engineering and Engineering Vibration 2011年第1期10卷 21-36页

作者： Ye Jihong zhang zhiqiang Chu Ye Key Laboratory of C ＆ PC Structure of Ministry of Education Southeast University Nanjing 210096 China

Under strong earthquakes, long-span spatial latticed structures may collapse due to dynamic instability or strength failure. The elasto-plastic dynamic behaviors of three spatial latticed structures, including two double-layer cylindrical shells and one spherical shell constructed for the 2008 Olympic Games in Beijing, were quantitatively examined under multi-support excitation （MSE） and uniform support excitation （USE）. In the numerical analyses, several important parameters were investigated such as the peak acceleration and displacement responses at key joints, the number and distribution of plastic members, and the deformation of the shell at the moment of collapse. Analysis results reveal the features and the failure mechanism of the spatial latticed structures under MSE and USE. In both scenarios, the double-layer reticulated shell collapses in the ＂overflow＂ mode, and the collapse is governed by the number of invalid plastic members rather than the total number of plastic members, beginning with damage to some of the local regions near the supports. By comparing the numbers and distributions of the plastic members under MSE to those under USE, it was observed that the plastic members spread more sufficiently and the internal forces are more uniform under MSE, especially in cases of lower apparent velocities in soils. Due to the effects of pseudo-static displacement, the stresses in the members near the supports under MSE are higher than those under USE.

关键词： multiple support excitation (MSE) uniform support excitation (USE) elastoplastic spatial latticed structure strength failure

New insight into adsorption characteristics and mechanisms of the biosorbent from waste activated sludge for heavy metals

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Journal of Environmental Sciences 2016年第7期28卷 248-256页

作者： Yun Zhou zhiqiang zhang Jiao zhang Siqing Xia Key Laboratory of Yangtze River Water Environment Ministry of Education College of Environmental Science and Engineering Tongji University State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and Engineering Tongji University Swette Center for Environmental Biotechnology Arizona State University School of Civil Engineering and Transportation Shanghai Technical College of Urban Management

The adsorption characteristics and mechanisms of the biosorbent from waste activated sludge were investigated by adsorbing Pb2＋and Zn2＋in aqueous single-metal solutions. A p H value of the metal solutions at 6.0 was beneficial to the high adsorption quantity of the biosorbent. The optimal mass ratio of the biosorbent to metal ions was found to be 2. A higher adsorption quantity of the biosorbent was achieved by keeping the reaction temperature below 55°C. Response surface methodology was applied to optimize the biosorption processes, and the developed mathematical equations showed high determination coefficients（above 0.99 for both metal ions） and insignificant lack of fit（p = 0.0838 and 0.0782 for Pb2＋and Zn2＋, respectively）. Atomic force microscopy analyses suggested that the metal elements were adsorbed onto the biosorbent surface via electrostatic interaction. X-ray photoelectron spectroscopy analyses indicated the presence of complexation（between –NH2,-CN and metal ions） and ion-exchange（between –COOH and metal ions）. The adsorption mechanisms could be the combined action of electrostatic interaction, complexation and ion-exchange between functional groups and metal ions.

关键词： Waste activated sludge Biosorbent Adsorption Metal ions Response surface methodology(RSM)

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桥接未来--LCCF库函数的应用

橡塑技术与装备 2025年第1期51卷 59-65页

作者：吴剑铭张志强中化(福建)橡塑机械有限公司福建三明365599

本文探讨了Siemens的LCCF库函数在工业自动化项目中的应用,LCCF库提供了一种软件层面的解决方案,通过库函数替代传统硬件协议网关,实现不同通信协议间的数据交换。介绍了Siemens库函数的分类与功能,阐述了LCCF库的主要组件及其在协议转... 详细信息

本文探讨了Siemens的LCCF库函数在工业自动化项目中的应用,LCCF库提供了一种软件层面的解决方案,通过库函数替代传统硬件协议网关,实现不同通信协议间的数据交换。介绍了Siemens库函数的分类与功能,阐述了LCCF库的主要组件及其在协议转换中的优势,包括简化配置流程、增强系统兼容性、降低技术门槛等。通过具体的应用实例,展示了LCCF库在SIMATIC控制器与Rockwell及Mitsubishi控制器之间通信的实现方法。此外,文章还对LCom与LCCF两个Siemens通信库进行了比较分析,指出了它们的共同点与不同点。

关键词： LCCF 协议网关数据交换CIP(Common Industrial Protocol) MELSEC Communication Protocol(MC协议)

Structure and mechanical properties of AZ31 magnesium alloy billets by different hot-top semi-continuous casting technology

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Rare Metals 2011年第4期30卷 414-418页

作者： zhang zhiqiang LE Qichi CUI Jianzhong The Key Laboratory of Electromagnetic Processing of Materials （Ministry of Education of China） Northeastern University Shenyang 110004 China

AZ31 alloy billets of 200 mm in diameter were produced by three different processes of conventional direct chill （DC） casting, low-frequency electromagnetic casting （LFEC） and low-frequency electromagnetic vibration casting （LFEVC）, respectively. The effect of LFEC and LFEVC on the microstructures, macmsegregation and mechanical properties of AZ31 alloy billets was investigated. In conventional DC casting, the AZ31 alloy billets exhibited coarse grains （about 370 μa） and severe segregation of A1 and Zn. In the presence of a solo low-frequency alternating magnetic field or a low-frequency electromagnetic vibration field applied during DC casting of Ф200 mm AZ31 billets, grains in the AZ31 alloy billets were effectively reffmed （about 210 μa） and the macrosegregation of A1 and Zn in the billets was greatly decreased. Furthermore, the tensile strength, fracture elongation and hardness of the as-cast AZ31 alloy billets were improved by the processes of LFEC and LFEVC relative to that cast by the process of conventional DC casting.

关键词： magnesium alloys electromagnetic field microstructure macrosegregation mechanical properties casting