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Bio-inspired environmental adaptability of swarm active matter

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Chinese Physics B 2023年第8期32卷 133-141页

作者：金阳凯王高袁大明王培龙王璟陈怀城刘雳宇昝兴杰 School of Ophthalmology and Optometry Eye HospitalSchool of Biomedical EngineeringWenzhou Medical UniversityWenzhou 325035China Wenzhou Institute University of Chinese Academy of SciencesWenzhou 325011China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China Chongqing Key laboratory of Soft Condensed Matter Physics and Smart Materials College of PhysicsChongqing UniversityChongqing 401331China

How biologically active matters survive adaptively in complex and changeable environments is a common concern of ***,evolution and natural selection are vital factors in the process of biological evolution and are also the key to survival in harsh ***,it is challenging to intuitively and accurately reproduce such longterm adaptive survival processes in the *** simulation experiments are intuitive and efficient,they lack ***,we propose to use swarm robots to study the adaptive process of active matter swarms in complex and changeable *** on a self-built virtual environmental platform and a robot swarm that can interact with the environment,we introduce the concept of genes into the robot system,giving each robot unique digital genes,and design robot breeding methods and rules for gene *** previous work[*** 119 e2120019119(2022)]has demonstrated the effectiveness of this *** this work,by analyzing the relationship between the genetic traits of the population and the characteristics of environmental resources,and comparing different experimental conditions,we verified in both robot experiments and corresponding simulation experiments that agents with genetic inheritance can survive for a long time under the action of natural selection in periodically changing *** also confirmed that in the robot system,both breeding and mutation are essential *** findings can help answer the practical scientific question of how individuals and swarms can successfully adapt to complex,dynamic,and unpredictable actual environments.

关键词： self-adaptability active matter robot swarm dynamics of evolution

design and Implementation of Enterprise Recruitment Mini Program

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Journal of Cyber Security 2021年第3期3卷 125-132页

作者： Yu Xue Nan Wei Junyang Han Chishe Wang Moayad Aloqaily School of Computer and Software Nanjing University of Information Science and TechnologyNanjingChina Jiangsu Key laboratory of Data Science and Smart Software Jinling Institute of TechnologyNanjingChina Faculty of Engineering Al Ain UniversityAl AinUnited Arab Emirates NUIST Students’Platform for Innovation and Entrepreneurship Training Program NanjingChina

Since the 21st century,the Internet has been updated and developed at an alarming *** the same time,WeChat applets are constantly improving and introducing new *** an enterprise recruitment system based on WeChat applets for the majority of job seekers and recruiter users,provide job seekers with easy-to-reach employment opportunities,and provide a convenient and clear screening environment for job *** front-end part of the applet is developed using WeChat developer tools,and the back-end system is developed using *** Spring Boot+Spring MVC framework,implemented in Java *** is managed using MySql *** function of this company’s recruitment applet is similar to the ordinary traditional native recruitment *** achieves basic functions such as job search,job search,collection of jobs,delivery of resumes,viewing of the job search process,recruitment of job information,screening of job resumes,notification of interviews,etc.

关键词： Mini-program recruitment WeChat developer tools MyEclipse

Analysis and design of University Teaching Equipment Management Information System

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Journal of Cyber Security 2021年第3期3卷 177-185页

作者： Yu Xue Xiang Jiao Chishe Wang Huanlun Chen Moayad Aloqaily School of Computer and Software Nanjing University of Information Science and TechnologyNanjingChina Jiangsu Key laboratory of Data Science and Smart Software Jinling Institute of TechnologyNanjingChina Faculty of Engineering Al Ain UniversityAl AinUnited Arab Emirates NUIST Students’Platform for Innovation and Entrepreneurship Training Program NanjingChina

Teaching equipment management is an important factor for colleges and universities to improve their teaching level,and its management level directly affects the service life and efficiency of teaching *** in recent years,our university recruitment of students scale is increasing year by year,the size of the corresponding teaching equipment is also growing,therefore to develop a teaching equipment management information system is necessary,not only can help universities to effective use of the existing teaching resources,also can update scrap equipment,related equipment maintenance,and build a good learning environment to students and to the improvement of the teaching quality of colleges and universities play a reliable safeguard *** paper first introduces some common development tools,and then analyzes the user functional requirements and data requirements of the system,and analyzes the feasibility of the system development from many aspects,finally based on B/S mode,using Java language,JSP technology and MySQL database design and implementation of a teaching equipment management information *** main functional modules of the system include equipment basic information management,equipment loan and return information management,equipment maintenance information management,equipment scrap information management,the interface of each functional module is shown in the paper.

关键词： Information systems teaching equipment management system analysis

Effect of design Parameters on the Reduction of Top Piston Ring Friction

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Effect of Design Parameters on the Reduction of Top Piston R...

粉末床熔融的多材料铺粉过程中粉末扩散的数值研究

The 2nd International Conference on Computer-Aided design, manufacturing, Modeling and Simulation(CDMMS 2012)

作者： Bin Wu Zhinan Zhang Ping Wang State Key laboratory of Automotive Simulation and Control Jilin University China FAW Group Corporation R&D Center School of Mechanical Engineering Shanghai Jiao Tong University Changchun Institute of Optics Fine Mechanics and PhysicsChinese Academy of Sciences

In order to reduce ring-liner interface friction power loss,this paper focuses on the structure parameters of the top ring,and investigates how the value of those parameters will influence top ring-liner friction power loss and the minimum thickness of oil film at top ring-liner interface.A mixed lubrication model is developed to simulate the effect of varying design parameters on ring-liner *** study shows that ring-liner friction power loss will be reduced with decreased axial ring height and barrel *** study provides a theoretical basis for design the top ring with reduced friction power loss at ring-liner interface.

关键词： Piston Ring,Friction,Lubrication,Oil Film

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Acta Mechanica Sinica 2023年第1期39卷 23-29页

作者：王林李二垒周宗彦张百成余艾冰 ARC Hub for Computational Particle Technology Department of Chemical & Biological Engineering Monash University Clayton VIC 3800 Australia Delft University of Technology Stevinweg 1 2628 CN Delft The Netherlands Jiangxi Provincial Key laboratory for Simulation and Modelling of Particulate Systems Jiangxi University of Science and Technology Nanchang 330013 China Beijing Advanced Innovation Center Materials Genome Engineering Advanced Material & Technology Institute University of Science and Technology Beijing Beijing 100083 China

粉末床熔融增材制造技术已应用于功能梯度材料的制造.文献中报道了一种材料成分沿垂直于粉末铺粉方向变化的新设计.基于此设计,本工作采用离散单元数值模拟研究了两种密度差异较大的金属粉末在铺粉过程中颗粒的偏析情况.结果发现,在铺... 详细信息

粉末床熔融增材制造技术已应用于功能梯度材料的制造.文献中报道了一种材料成分沿垂直于粉末铺粉方向变化的新设计.基于此设计,本工作采用离散单元数值模拟研究了两种密度差异较大的金属粉末在铺粉过程中颗粒的偏析情况.结果发现,在铺粉过程中,较大密度粉末(重颗粒)一侧的铺粉量小于较小密度粉末(轻颗粒)的一侧的铺粉量.这种现象表明重颗粒从粉末密度大的一侧向粉末密度较小的一侧扩散.这种扩散受铺粉速度影响较大,铺粉速度越快,扩散越明显.但粉末层厚度对扩散影响不大.结果还表明,重颗粒与轻颗粒间的粒径差异影响扩散较大,减小重颗粒的粒径可能是控制颗粒偏析的一种方案.

关键词：材料成分颗粒偏析功能梯度材料离散单元金属粉末密度差异增材制造技术扩散影响

designing Electrochemical Nanoreactors to Accelerate Li_(2)S_(1/2) Three-Dimensional Growth Process and Generating More Li_(2)S for Advanced Li–S Batteries

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Renewables 2023年第3期1卷 341-352页

作者： Junhao Li Kaixiang Shi Jiajie Pan Junda Pan Yongxian Lin Kaixin Wang Hao Li Jinyun Liao Huafeng Dong Quanbing Liu Guangzhou Key laboratory of Clean Transportation Energy Chemistry Guangdong Provincial Key Laboratory of Plant Resources BiorefinerySchool of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou 510006 Jieyang Branch of Chemistry and Chemical Engineering Guangdong laboratory(Rongjiang laboratory) Jieyang 515200 School of Chemistry and Materials Engineering Huizhou UniversityHuizhou516007 School of Physics and Optoelectronic Engineering Guangdong University of TechnologyGuangzhou 510006

With advantages of low costs and high energy density,Li–S batteries are considered as one of the most promising energy storage ***,Li_(2)S_(2) with a high dissociation energy and insulative properties is hard to convert into Li_(2)S,resulting in underutilization of sulfur ***,Co-Mo_(2)C@C yolk–shell spheres as nanoreactors were designed to confront this challenge *** Co-Mo_(2)C@C-induced Li_(2)S_(1/2) nucleation and growth in the three-dimensional process and the cathode produced more Li_(2)S after full *** studies and theoretical calculations reveal that the conversion barrier from Li_(2)S_(2) into Li_(2)S was lowered while the diffusion of lithium ions and electron transfer accelerated when using the Co-Mo_(2)C@C *** on the above advantages,the Co-Mo_(2)C@C/S cathode exhibits a high reversible capacity and excellent cyclic stability,such as an initial specific capacity of 1200 mAh g^(−1) at 0.1 C with 709 mAh g^(−1) at 1.0 C after 1000 cycles with a low capacity fading rate of 0.04%per *** at high densities of 3.0 C and 5.0 C,the specific capacities are 647.6 and 557.7 mAh g^(−1) after 400 cycles,***,it also shows ca.770 and 900 mAh g^(−1) at 0.2 C after 50 cycles with high sulfur loadings of 4.2 and 5.1 mg cm−2,*** present work may provide new insights into the design of nanoreactors to promote Li_(2)S_(1/2) growth in a three-dimensional process and accelerate conversion from solid Li_(2)S_(2) to solid Li_(2)S in high performance Li–S batteries.

关键词： Li-S batteries cobalt-dopedβ-Mo_(2)C yolk-shell structure optimizing Li_(2)S_(1/2)growth process fast solid-solid conversion of Li_(2)S_(2)-Li_(2)S

design and Implementation of Traceability Management System for Pigs Based on Personal digital Assistant

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Animal Husbandry and Feed Science 2010年第5期2卷 3-5页

作者： ZHOU Lv WANG Quan-chun CAO Zhi-yong TAO Lin-li ZHANG Xi YANG Yi College of Economics and Management Yunnan Agricultural University Kunming 650201 China College of Foundation and Information Engineering Yunnan Agricultural University Kunming 650201 China College of Animal Science and Technology Yunnan Agricultural Uni- versity Key laboratory of Animal Nutrition and Feed Science of Yunnan Province Kunming 650201 China

The traceability management system for pigs based on personal digital assistant （PDA） was constructed by software engineering method to provide the traceability management for pork safety. This traceability system included information managements for pig breeding and pig quaran- tine inspection supervision. It also realized the record and supervision of pig information, feed usage, veterinary drug usage and quarantine inspec- tion. We mainly introduced the designs of systemic structure and functional structure of the traceability system and key techniques of system imple- mentation.

关键词： Traceability system Personal digital assistant Pigs design and implementation

Inter-ethnic variation of ocular traits——design and methodology of comparison study among American Caucasians,American Chinese and mainland Chinese

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Eye Science 2011年第1期26卷 30-34页

作者： Dandan Wang Guofu Huang Mingguang He Lingling Wu Shan Lin State Key laboratory of Ophthalmology Zhongshan Ophthalmic Center Sun Yat-sen University Guangzhou China University of California San Francisco USA Peking University Third Hospital Peking University Eye Center Beijing China

Purpose:To summarize the design and methodology of a multi-center *** the existed ethnic differences of glaucoma,this survey will explore the differences with regard to anterior and posterior ocular segment parameters between Caucasians and ***:In this study,four cohorts including American Caucasians and American Chinese from San Francisco,southern mainland Chinese from Guangzhou,and northern mainland Chinese from Beijing were prospectively enrolled for a series of eye examinations and tests from May 2008 to December 2010.A total of 120 subjects including 15 of each gender in each age decade from 40s to 70s were recruited for each *** of the following tests were collected:a questionnaire eliciting systemic and ocular disease history,blood pressure,presenting and best corrected visual acuity,auto-refraction,Goldmann applanation tonometry,go nioscopy,A-scan,anterior segment optical coherence tomography (ASOCT),ultrasound biomicroscopy (UBM),visual field (VF),Heidel berg retinal tomography (HRT),OCT for optic nerve,and digital fundus ***:this study will provide insights to the etiologies of glaucoma especially PACG through inter-ethnic comparisons of relevant ocular anatomic and functional parameters.

关键词：中国大陆种族差异美国白变异性状设计断层扫描测试数据生物显微镜

A Direct Toolpath Constructive design Method for Controllable Porous Structure Configuration with a TSP-based Sequence Planning Determination

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Chinese Journal of Mechanical Engineering(Additive manufacturing Frontiers) 2023年第1期2卷 34-46页

作者： Zhiping Wang Yicha Zhang Donghua Dai Dongdong Gu Chaoyue Chen Di Wang Alain Bernard Laboratoire des Sciences du Numérique de Nantes(LS2N) Nantes44321France Nantes Université Ecole Centrale de NantesNantes44321France Universitéde Technologie Belfort-Montbéliard(UTBM) ICB-COMMSevenans90400France Jiangsu Provincial Engineering laboratory for Laser Additive manufacturing of High-Performance Metallic Components College of Materials Science and TechnologyNanjing University of Aeronautics and AstronauticsNanjing210016China State Key laboratory of Advanced Special Steels School of Materials Science and EngineeringShanghai UniversityShanghai200444China School of Mechanical and Automotive Engineering South China University of TechnologyGuangzhou510641China

The inherent capabilities of additive manufacturing(AM)to fabricate porous lattice structures with controllable structural and functional properties have raised interest in the design methods for the production of extremely in-tricate internal *** popular methods of porous lattice structure design still follow the traditional flow,which mainly consists of computer-aided design(CAD)model construction,STereoLithography(STL)model conversion,slicing model acquisition,and toolpath configuration,which causes a loss of accuracy and manufac-turability uncertainty in AM preparation ***,toolpath configuration relies on a knowledge-based approach summarized by expert *** this process,geometrical construction information is always ignored when a CAD model is created or *** fully use this geometrical information,avoid accuracy loss and ensure qualified manufacturability of porous lattice structures,this paper proposes a novel toolpath-based con-structive design method to directly generate toolpath printing file of parametric and controllable porous lattice structures to facilitate model data exchange during the AM preparation *** optimize the laser jumping route between lattice cells,we use a hybrid travelling salesman problem(TSP)solver to determine the laser jumping points on contour *** kinds of laser jumping orders are calculated and compared to select a minimal laser jumping route for sequence planning inside lattice ***,the proposed method can achieve high-precision lattice printing and avoid computational consumption in model conversion stages from a geomet-rical *** optical metallographic images show that the shape accuracy of lattice patterns can be *** existence of“grain boundaries”brought about by the multi-contour scanning strategy may lead to different mechanical properties.

关键词： design for additive manufacturing Toolpath-based constructive design Porous structure Sequence planning