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Optimization of Charging/Battery-Swap Station Location of Electric Vehicles with an Improved Genetic Algorithm-Based Model

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Computer Modeling in Engineering & Sciences 2023年第2期134卷 1177-1194页

作者： Bida zhang Qiang Yan hairui zhang Lin zhang Beijing University of Posts and Telecommunications Beijing100876China PLA Army Academy of Artillery and Air Defense Zhengzhou450000China Beijing Information Science and Technology University Beijing100192China

The joint location planning of charging/battery-swap facilities for electric vehicles is a complex *** the differences between these two modes of power replenishment,we constructed a joint location-planning model to minimize construction and operation costs,user costs,and user satisfaction-related penalty *** designed an improved genetic algorithm that changes the crossover rate using the fitness value,memorizes,and transfers excellent *** addition,the present model addresses the problem of“premature convergence”in conventional genetic algorithms.A simulated example revealed that our proposed model could provide a basis for optimized location planning of charging/battery-swapping facilities at different levels under different charging modes with an improved computing *** example also proved that meeting more demand for power supply of electric vehicles does not necessarily mean increasing the sites of charging/battery-swap ***,optimizing the level and location planning of charging/battery-swap stations can maximize the investment *** proposed model can provide a reference for the government and enterprises to better plan the location of charging/battery-swap ***,it is of both theoretical and practical value.

关键词： Charging/battery-swapping facility genetic algorithm location planning excellent gene cluster

Experimental study on the angle of repose of pulverized coal

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Particuology 2010年第5期8卷 482-485页

作者： Wei Wang Jiansheng zhang Shi Yang Hai zhang hairui Yang Guangxi Yue Department of Thermal Engineering Tsinghua University Beijing 100084 PR China

An experimental study on the angle of repose （AoR） of pulverized coal with different particle sizes and different moisture contents （MC） was conducted. Three different measurement methods, free-base piling, fixed-base piling and sliding, were used. The data were analyzed by one-way and two-way analysis of variance. The results showed that the AoRs of pulverized coal with particle sizes smaller than 150 μm were in the range of 30-50°. The characterization of the flowability of pulverized coal was some cohesiveness or true cohesiveness. The increase of MC will increase AoR and thus decrease the flowability of the powder. However, the particle size effect is bifurcated. Below a critical size, the decrease of particle size decreases the flowability; while above the critical size, the decrease of particle size increases the flowability. It was found that the value of the critical size strongly depends on the powder density. Moreover, the AoR dependence on particle size could be linked with the Geldart＇s particle classification. The critical size at the turning point is on the boundary between Group A and Group B in Geldart＇s classification diagram. Based on the experimental results, there is no significant cross interaction between particle size and MC. The AoRs measured by free-base method and fixed-base method are close, but both remarkably smaller than that measured by the sliding method.

关键词： Angle of repose (AoR)Pulverized coalParticle sizeMoisture content

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A Phase Readout Method for Wireless Passive Sensor Used in Pressure Measurement System

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Chinese Journal of Electronics 2015年第4期24卷 702-708页

作者： HONG Yingping LIANG Ting ZHENG Tingli zhang hairui LIU Wenyi XIONG Jijun Key Laboratory of Instrumentation Science & Dynamic Measurement Ministry of Education North University of China Science and Technology on Electronic Test & Measurement Laboratory North University of China

A phase difference detection method used for reading the resonant frequency through mutual coupling is designed to meet the pressure measurement in harsh environments, and a testing device of integrated modular by developing the hardware circuits is *** and discussion of the novel theoretical model in the phase readout system is presented, and a pressure test platform based on the phase difference detection is also established, which is to measure the frequency of a LC resonant sensor on the basis of 96% alumina ceramic substrate. The experimental results show that the proposed phase difference readout system presents sweep-frequency detection in the range of 1–100MHz bandwidth, and a high frequency resolution of 0.006 MHz. Sensitivity of the sensor is approximately 0.225 MHz/bar from 1 bar to 2 bar. The accuracy and functionality of the phase readout system have emphasized a wider engineering application range, so that we can make it possible that the wireless passive LC resonant sensor revolves well in practical engineering occasions outside the laboratory environment.

关键词： LC resonant sensor Resonant frequency Phase difference detection Pressure test

Generative API usage code recommendation with parameter concretization

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Science China(Information Sciences) 2019年第9期62卷 51-72页

作者： Chi CHEN Xin PENG Jun SUN Zhenchang XING Xin WANG Yifan ZHAO hairui zhang Wenyun ZHAO School of Computer Science Fudan University Shanghai Key Laboratory of Data Science Fudan University Pillar of Information System Technology and Design Singapore University of Technology and Design Research School of Computer Science Australian National University

Many programming languages and development frameworks have extensive libraries(e.g., JDK and Android libraries) that ease the task of software engineering if used effectively. With numerous library classes and sometimes intricate API(application programming interface) usage constraints, programmers often have difficulty remembering the library APIs and/or using them correctly. This study addresses this problem by developing an engine called DeepAPIRec, which automatically recommends the API usage *** to the existing proposals, our approach distinguishes itself in two ways. First, it is based on a tree-based long short-term memory(LSTM) neural network inspired by recent developments in the machinelearning community. A tree-based LSTM neural network allows us to model and reason about variable-length,preceding and succeeding code contexts, and to make precise predictions. Second, we apply data-flow analysis to generate concrete parameters for the API usage code, which not only allows us to generate complete code recommendations but also improves the accuracy of the learning results according to the tree-based LSTM neural network. Our approach has been implemented for supporting Java programs. Our experimental studies on the JDK library show that at statement-level recommendations, DeepAPIRec can achieve a top-1 accuracy of about 37% and a top-5 accuracy of about 64%, which are significantly better than the existing approaches. Our user study further confirms that DeepAPIRec can help developers to complete a segment of code faster and more accurately as compared to IntelliJ IDEA.

关键词： code recommendation API deep learning data dependency parameter concretization

Rapid Microwave-accelerated Multi-step Synthesis of 2,6-di（naphthalene Thioureido Carbamino）Pyridine

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Journal of Chemistry and Chemical Engineering 2017年第2期11卷 79-81页

作者： hairui zhang Guofu zhang School of Electronic and lnformation Engineering Lanzhou City University Lanzhou 730070 China School of Chemistry and Environmental Engineering Lanzhou City University Lanzhou 730070 China

A rapid and simple procedure for synthesis of 2,6-di（naphthalene thioureido carbamino）pyridine fluorescine anion acceptor by the reaction between pyridine-2,6-dicarbohydrazide obtained from 2,6-dimethylpyridine after three-step reaction and 1-napbthyl isothiocyanate is described, and all reactions could be carried out under microwave heating condition.

关键词： 2,6-di(naphthalene thioureido carbamino)pyridine pyridine-2,6-dicarboxylic acid dimethyl 2,6-pyridinedi- carboxylate,pyridine-2,6-dicarbohydrazide microwave irradiation.

Research and Application of Computer Management of the Test Chemical Products Quality Analysis

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Journal of Chemistry and Chemical Engineering 2015年第2期9卷 149-151页

作者： hairui zhang Guofu zhang Helin Ye School of lnformation Engineering Lanzhou City University Lanzhou 730070 China School of Chemistry & Environmental Science Lanzhou City University Lanzhou 730070 China

According to the regulations of the People＇s Republic of China national standard as the basis, on the part of chemical industry product quality inspection and analysis of the implementation of computer management has developed a set of software applications, the software in chemical products quality inspection and analysis of the means of management is an innovation. The software functions, can automatically process data, judge the product grade, quality analysis, objective and fair, convenient, fast, accurate, stable, practical, and easy to popularize.

关键词： Chemical products quality analysis automatic evaluation software development application.

Intelligent Management Based on Chemical Reagent Quality Analysis

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Journal of Chemistry and Chemical Engineering 2016年第7期10卷 336-340页

作者： hairui zhang Guofu zhang Li zhang School of Electronic and Information Engineering Lanzhou City University Lanzhou 730070 School of Chemistry and Environmental Engineering Lanzhou City University Lanzhou 730070

Access database technology and Visual Basic programming language are used to develop a set of chemical reagents quality analysis and inspection of intelligent management application software, and its stability was investigated. The results show that the sotfware is used to manage intelligently the quality analysis of chemical reagents test each linkage, to upload and save the analysis of test data and results in the network in time for users, to build a network of information sharing platform for enterprises and quality management departments, and its quality of chemical reagents test results is used to manage by the computer with practical application value. The software is simple, convenient, fast, friendly interface, stable operation, accurate and reliable results, with a high value to promote the application.

关键词： Chemical reagent quality analysis test visual basic language software development intelligent management.

Network Management of Food Additives Quality Analysis and Inspection

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Journal of Chemistry and Chemical Engineering 2015年第7期9卷 468-471页

作者： hairui zhang Guofu zhang Li zhang City Institute oflnformation and System Science School of Information Engineering Lanzhou City University Lanzhou 730070 China School of Chemistry & Environmental Science Lanzhou City University Lanzhou 730070 China

In this paper, on the basis of the implementation of the national chemical industry standard analytical test methods and analysis of test items, a food additive quality analysis and inspection of network management applications are developed using the development technology of Visual Basic language and computer system operating environment, to achieve a network management software for users on food additives of quality analytical testing. The software sets up an information sharing network platform for enterprise and quality management departments, which is a major innovation in the food additive quality analysis on test management methods and tools.

关键词： Food additives quality analysis Visual Basic language network management software development.

Food Additives-Ascorbic Acid Quality Assay Test Intelligent Management

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Journal of Chemistry and Chemical Engineering 2018年第1期12卷 20-25页

作者： hairui zhang Li zhang Helin Ye Guofu zhang School of Electronie and lnformation Engineering Lanzhou City University Lanzhou 730070 China School of Chemistry and Environmental Engineering Lanzhou City University Lanzhou 730070 China

In this paper, based on the analysis and test methods of national standards （GB 14754-2010） and chemical analysis and test items carried out by chemical enterprises, a set of automatic processing of quality analysis test data of ascorbic acid products was developed by using access database technology and Visual Basic programming language system, and its stability was investigated. The results show that the software can manage intelligently all aspects of the quality analysis and test of ascorbic acid products, uploading timely the data and results of the analysis and inspection to the network and saving it for users, enterprises and quality management, which set up a network of information sharing platform to ensure the authenticity and reliability of measurement results, improving greatly the speed of data processing, saving valuable time, reducing production costs with good economic efficiency and social benefit. It has practical value for ascorbic acid quality analysis test data processing automatically the results of the implementation of intelligent management.

关键词： Food additive ascorbic acid quality analysis test intelligent management software development.