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第18届工业工程与工程管理国际学术会议

作者： qing-hui dai,feng ye energy power & mechanical engineering school,north china electric power university,baoding,china

In the fierce competition in the market environment,cost control is become for each enterprise focus *** control needs to establish scientific cost analysis and control systems,to let the managers comprehensively understanding company exterior cost level and influencing the company performance of each link,clearly understanding company earnings situation,thus grasping accurate decision-making direction,truly realizing effective cost *** this paper,the basic principle of benchmarking was *** was explained that the concept,applied steps,and application of the matters needing attention of *** principle and method of the enterprise cost control were *** was explained that the concept and procedures,target and the method of cost *** principle and application situation of the activity-based costing method were *** was principally explored benchmarking application of cost control in a power supply *** Toyota and Wal-Mart were selected they were the two internationally famous enterprise cost control *** the basis of comparison and analysis,this paper analyzes the strategies of cost control of the first-class enterprise in the purchase cost,operation cost,and human resource cost *** combination with the actual situation of a power supply company,and some views of improve enterprise cost control effectiveness are *** power supply company cost control implementation process model is *** tenets were expounded of application activity-based costing in a power supply *** types of operation were divided cost control of the power supply *** example of quantitative analysis of the power supply company sales operations cost,the feasibility and effectiveness of the cost control were shows in the power supply company,.According to the specific circumstances of a power supply company,cost control measures have was *** paper thinks that,in order to make power co

关键词： Cost Control,Benchmarking,Activity Based Costing,power Supply Company

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Stress Concentration Effect in Interface Between Conductor and Epoxy Resin in Coaxial Components of power Equipment

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CSEE Journal of power and energy Systems 2024年第1期10卷 412-420页

作者： Chuang Wang Kang Lei qing Sun hui Li Jiawei Zhang Lang Zhao Zongren Peng school of electrical engineering Xi’an University of TechnologyXi’an 710054China Xi’an power Supply Company State Grid Shaanxi Electric Power CompanyXi’an 710032China State Key Laboratory of electrical Insulation and power Equipment Xi’an Jiaotong UniversityXi’an 710049China

The spacer used in gas insulated switchgear(GIS)plays a vital role in its safe *** mismatch of mechanical properties between conductor and insulating material in spacers results in stress concentration at the interface between *** a hydrostatic test,mechanical damages are often initiated from the *** this paper,the stress between aluminum conductors and epoxy resin is studied by using a simplified coaxial structure *** measurement system and finite element simulation are used to explore the generation of stress and strain during curing and *** real-time measurement of strain at the interface shows that the residual strain in the entire process is primarily generated during the cooling ***,the temperature and stress/strain distribution at the interface during the cooling stage are further studied,and combined with experiments and *** consistency between the finite element simulation and the experimental measurement results verifies the validity of the simulation method *** results show that the maximum of the first principal stress generated during the cooling stage of the production process is concentrated on the upper and lower edges of the interface which is critical to the impact of the production quality of the spacer.

关键词： Epoxy resin GIS interface stress/strain distribution

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一种新型双曲弧面海堤护坡结构防潮消能效果的数值模拟研究

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水电能源科学 2024年第8期42卷 187-191页

作者：秦鹏李杰成徐欣悦周晔凯陈锴锋罗清清陶杰晖浙江水利水电学院水利与环境工程学院浙江杭州310018 浙江省农村水利水电资源配置与调控关键技术重点实验室浙江杭州310018 河海大学水利水电学院江苏南京210098

发展新型护坡结构对提高海堤工程结构强度,降低失事风险具有重要意义。为得到一种新型海堤护坡结构的更加准确的试验数据,基于Flow-3D软件对双曲弧面海堤护坡结构进行水动力数值模拟试验,并从消能防潮效果和压强分布特征等角度与传统海... 详细信息

发展新型护坡结构对提高海堤工程结构强度,降低失事风险具有重要意义。为得到一种新型海堤护坡结构的更加准确的试验数据,基于Flow-3D软件对双曲弧面海堤护坡结构进行水动力数值模拟试验,并从消能防潮效果和压强分布特征等角度与传统海堤护坡结构进行对比分析。计算结果进一步验证了新型海堤护坡结构的导流消能效果,证明其能在中、高流速涌浪冲击下有效提高越浪高度,形成较好的潮涌景观效果,同时还明晰了新型双曲海堤护坡的结构安全薄弱区域。研究成果为复杂水流条件下新型海堤护坡结构的应用及推广提供了理论及数据支撑。

关键词：双曲弧面海堤护坡防潮消能 Flow-3D 数值模拟

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基于改进尖点突变级数法的高温环境下人体生理状态综合评价

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科学技术与工程 2024年第9期24卷 3912-3922页

作者：郑国忠李康岳旭辉卫常青华北电力大学能源动力与机械工程学院保定071003

热应激会降低工作效率并导致热相关疾病。为了量化高温环境下环卫工人的热应激水平,建立一个生理状态安全评价指标(physiological state safety evaluation index,PSEI)。首先,引入尖点突变理论分析不同热环境下人体生理状态变化趋势。... 详细信息

热应激会降低工作效率并导致热相关疾病。为了量化高温环境下环卫工人的热应激水平,建立一个生理状态安全评价指标(physiological state safety evaluation index,PSEI)。首先,引入尖点突变理论分析不同热环境下人体生理状态变化趋势。其次,基于信息熵和变权理论计算生理指标的权重,并利用尖点突变级数法建立人体生理状态评价体系。最后,提出新评价指标PSEI以量化生理状态安全水平,并在此基础上确定PSEI的安全等级。结果表明:在不同环境条件和生理状态下,生理指标的权重是变化的;平均皮肤温度、耳膜温度、收缩压和心率的权重范围分别为0.09~0.64、0.08~0.41、0.07~0.74和0.06~0.33;PSEI的安全等级为:非常安全(0.948,1]、相对安全(0.886,0.948]、中等(0.798,0.886]、相对危险(0.649,0.798]和非常危险[0,0.649]。PSEI可为高温环境下环卫工人提供实时的生理状态安全评估和健康预警。

关键词：热应激高温环境生理状态突变级数法安全水平

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酸雨侵蚀环境中约束砌体结构时变地震易损性分析

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振动工程学报 2024年第9期37卷 1606-1615页

作者：董淑卿黄瑜黄军佘阳阳孙烨郑山锁中国能源建设集团陕西省电力设计院有限公司陕西西安710054 西安建筑科技大学土木工程学院陕西西安710055 西安建筑科技大学结构工程与抗震教育部重点实验室陕西西安710055

多龄期砌体结构在酸雨侵蚀作用下的耐久性问题日益凸显,但目前国内外还没有形成完整的结构层次耐久性时变模型。为研究材料性能演化与砌体性能演化的关系,对不同配合比砂浆、砖块和砌体分别进行加速侵蚀试验,建立了考虑酸雨侵蚀循环次... 详细信息

多龄期砌体结构在酸雨侵蚀作用下的耐久性问题日益凸显,但目前国内外还没有形成完整的结构层次耐久性时变模型。为研究材料性能演化与砌体性能演化的关系,对不同配合比砂浆、砖块和砌体分别进行加速侵蚀试验,建立了考虑酸雨侵蚀循环次数的砌体构件抗压强度模型,再根据自然环境下砌体样本数据,建立酸雨侵蚀作用下在役砌体结构力学性能退化程度与服役年限的数学关系,并使用典型结构法对某二层约束砌体结构进行地震易损性分析,分别讨论了不同参数对酸雨侵蚀作用下约束砌体结构易损性曲线和破坏概率的影响规律。结果表明,在其他因素不变的条件下,当地震动强度较高时,酸雨侵蚀作用下约束砌体结构严重破坏和倒塌的发生概率随服役年限的增大而逐渐增加。

关键词：约束砌体结构酸雨侵蚀数值模拟典型结构

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基于活性炭‖Na_(0.44)MnO_(2)的低成本、高倍率和长寿命碱性钠离子电池电容器

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物理化学学报 2024年第2期40卷 87-88页

作者：薛晴李圣驿赵亚楠盛鹏徐丽李正曦张波李慧王博杨立滨曹余良陈重学北京智慧能源研究院北京102200 武汉大学化学与分子科学学院化学电源材料与技术湖北省重点实验室武汉430072 国网青海省电力公司经济技术研究院西宁810008 国网金华供电公司浙江金华321017 武汉大学动力与机械学院水力机械过渡过程教育部重点实验室武汉430072

水系钠离子电池电容器具有成本低、功率大、安全性好等优点,是下一代大规模储能系统的理想选择之一。本文采用Na_(0.44)MnO_(2)正极、活性炭(AC)负极、6mol·L^(-1)NaOH电解液和廉价的不锈钢集流体构建了可充电碱性钠离子电池电容器。由... 详细信息

水系钠离子电池电容器具有成本低、功率大、安全性好等优点,是下一代大规模储能系统的理想选择之一。本文采用Na_(0.44)MnO_(2)正极、活性炭(AC)负极、6mol·L^(-1)NaOH电解液和廉价的不锈钢集流体构建了可充电碱性钠离子电池电容器。由于Na_(0.44)MnO_(2)正极在碱性电解液中具有较高的过充耐受性,通过首次充电时的原位过充预活化过程可以解决半钠化Na_(0.44)MnO_(2)正极和AC负极初始库伦效率低的缺点。因此,AC‖Na_(0.44)MnO_(2)可充电碱性钠离子电池电容器具有优异的电化学性能,在功率密度为85 W·kg^(-1)时,能量密度达26.6 Wh·kg^(-1),循环10000次后容量保持率为89%。同时,在50℃的高温和-20℃的低温也具有良好的电化学性能。这些结果表明AC‖Na_(0.44)MnO_(2)可充电碱性钠离子电池电容器具备应用于大规模储能的潜力。

关键词：钠离子电池电容碱性电解液过充自保护低成本宽工作温程

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Enhancing structure and cycling stability of Ni-rich layered oxide cathodes at elevated temperatures via dual-function surface modification

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Journal of energy Chemistry 2022年第12期75卷 301-309,I0008页

作者： Ying-De Huang Han-Xin Wei Pei-Yao Li Yu-Hong Luo qing Wen Ding-Hao Le Zhen-Jiang He Hai-Yan Wang You-Gen Tang Cheng Yan Jing Mao Ke-Hua dai Xia-hui Zhang Jun-Chao Zheng school of Metallurgy and Environment Central South UniversityChangsha 410083HunanChina National engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals Central South UniversityChangsha 410083HunanChina engineering Research Center of the Ministry of Education for Advanced Battery Materials Central South UniversityChangsha 410083HunanChina Hunan Provincial Key Laboratory of Chemical power Sources College of Chemistry and Chemical EngineeringCentral South UniversityChangsha 410083HunanChina school of mechanical Medical and Process EngineeringQueensland University of TechnologyBrisbane 4001QueenslandAustralia school of Materials Science and engineering Zhengzhou UniversityZhengzhou 450001HenanChina College of Chemistry Tianjin Normal UniversityTianjin 300387China school of mechanical and Materials engineering Washington State UniversityPullman 99164WashingtonUSA

High-nickel single-crystal layered oxide material has become the most promising cathode material for electric vehicle power battery due to its high energy ***,this material still suffers from structural degradation during cycling and especially the severe interfacial reactions at elevated temperatures that exacerbate irreversible capacity ***,a simple strategy was used to construct a dualfunction Li_(1.5)Al_(0.5)Ge_(1.5)P_(3)O_(12)(LAGP)protective layer on the surface of the high-nickel single-crystal(SC)cathode material,leading to SC@LAGP *** strong Al-O bonding effectively inhibits the release of lattice oxygen(O)at elevated temperatures,which is supported by the positive formation energy of O vacancy from first-principal ***,theoretical calculations demonstrate that the appropriate amount of Al doping accelerates the electron and Li^(+)transport,and thus reduces the kinetic *** addition,the LAGP protective layer alleviates the stress accumulation during cycling and effectively reduces the erosion of materials from the electrolyte decomposition at elevated *** obtained SC@LAGP cathode material demonstrates much enhanced cycling stability even at high voltage(4.6 V)and elevated temperature(55℃),with a high capacity retention of 91.3%after 100 *** work reports a simple dual-function coating strategy that simultaneously stabilizes the structure and interface of the single-crystal cathode material,which can be applied to design other cathode materials.

关键词： Lithium-ion battery Ni-rich cathode Dual-function coating Single-crystalline Elevated temperature

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Plasmonic light trapping for enhanced light absorption in film-coupled ultrathin metamaterial thermophotovoltaic cells

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Frontiers in energy 2018年第1期12卷 185-194页

作者： qing NI Hassan ALSHEHRI Yue YANG Hong ye Liping WANG school for engineering of Matter Transport & Energy Arizona StateUniversity Tempe AZ 85287 USA Department of Thermal Scienceand energy engineering University of Science and Technology ofChina Hefei 230027 China school of mechanical engineering and Automation Harbin Institute of Technology (Shenzhen) Shenzhen518052 China Department of Thermal Science and energy engineering University ofScience and Technology of China Hefei 230027 China

Ultrathin cells have gained increasing attention due to their potential for reduced weight, reduced cost and increased flexibility. However, the light absorption in ultrathin cells is usually very weak compared to the corresponding bulk cells. To achieve enhanced photon absorption in ultrathin thermophotovoltaic （TPV） cells, this work proposed a film-coupled metamaterial structure made of nanometer-thick gallium antimonide （GaSh） layer sandwiched by a top one-dimensional （1D） metallic grating and a bottom metal film. The spectral normal absorptance of the proposed structure was calculated using the rigorous coupled-wave algorithm （RCWA） and the absorption enhancement was elucidated to be attributed to the excitations of magnetic polariton （MP）, surface plasmon polariton （SPP）, and Fabry-Perot （FP） resonance. The mechanisms of MP, SPP, and FP were further confirmed by an inductor-capacitor circuit model, disper- sion relation, and phase shift, respectively. Effects of grating period, width, spacer thickness, as well as incidence angle were discussed. Moreover, short-circuit current density, open-circuit voltage, output electric power,and conversion efficiency were evaluated for the ultrathin GaSb TPV cell with a film-coupled metamaterial structure. This work will facilitate the development of next- generation low-cost ultrathin infrared TPV cells.

关键词： metamaterial thermophotovoltaic plasmo-nics light trapping selective absorption

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CEPC Technical Design Report

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Radiation Detection Technology and Methods 2024年第1期8卷 I0003-I0016,1-1091页

作者： Waleed Abdallah Tiago Carlos Adorno de Freitas Konstantin Afanaciev Shakeel Ahmad Ijaz Ahmed Xiaocong Ai Abid Aleem Wolfgang Altmannshofer Fabio Alves Weiming An Rui An Daniele Paolo Anderle Stefan Antusch Yasuo Arai Andrej Arbuzov Abdesslam Arhrib Mustafa Ashry Sha Bai Yu Bai Yang Bai Vipul Bairathi Csaba Balazs Philip Bambade Yong Ban Tripamo Bandyopadhyay Shou-Shan Bao Desmond P.Barber Ayse Bat Varvara Batozskaya Subash Chandra Behera Alexander Belyaev Michele Bertucci Xiao-Jun Bi Yuanjie Bi Tianjian Bian Fabrizio Bianchi Thomas Biekotter Michela Biglietti Shalva Bilanishvili Deng Binglin Denis Bodrov Anton Bogomyagkov Serge Bondarenko Stewart Boogert Maarten Boonekamp Marcello Borri Angelo Bosotti Vincent Boudry Mohammed Boukidi Igor Boyko Ivanka Bozovic Giuseppe Bozzi Jean-Claude Brient Anastasiia Budzinskaya Masroor Bukhari Vladimir Bytev Giacomo Cacciapaglia Hua Cai Wenyong Cai Wujun Cai Yijian Cai Yizhou Cai Yuchen Cai Haiying Cai Huacheng Cai Lorenzo Calibbi Junsong Cang Guofu Cao Jianshe Cao Antoine Chance Xuejun Chang Yue Chang Zhe Chang Xinyuan Chang Wei Chao Auttakit Chatrabhuti Yimin Che Yuzhi Che Bin Chen Danping Chen Fuqing Chen Fusan Chen Gang Chen Guoming Chen Hua-Xing Chen huirun Chen Jinhui Chen Ji-Yuan Chen Kai Chen Mali Chen Mingjun Chen Mingshui Chen Ning Chen Shanhong Chen Shanzhen Chen Shao-Long Chen Shaomin Chen Shiqiang Chen Tianlu Chen Wei Chen Xiang Chen Xiaoyu Chen Xin Chen Xun Chen Xurong Chen ye Chen Ying Chen Yukai Chen Zelin Chen Zilin Chen Gang Chen Boping Chen Chunhui Chen Hok Chuen Cheng Huajie Cheng Shan Cheng Tongguang Cheng Yunlong Chi Pietro Chimenti Wen Han Chiu Guk Cho Ming-Chung Chu Xiaotong Chu Ziliang Chu Guglielmo Coloretti Andreas Crivellin Hanhua Cui Xiaohao Cui Zhaoyuan Cui Brunella D'Anzi Ling-Yun dai Xinchen dai Xuwen dai Antonio De Maria Nicola De Filippis Christophe De La Taille Francesca De Mori Chiara De Sio Elisa Del Core Shuangxue Deng Wei-Tian Deng Zhi Deng Ziyan Deng Bhupal Dev Tang Dewen Biagio Di Micco Ran Ding Siqin Dingl Yadong Ding Haiyi Dong Jianin AGH university of Science and Technology Faculty of Physics and Applied Computer ScienceKrakow Anhui university HefeiAnhui Applied Physics Department Federal Urdu University of ArtsScience and TechnologyIslamabad Banaras Hindu university Institute of ScienceVaranasi Bandirma Onyedi Eylul university Bandirma Beihang university Beijing Beijing Computational Science Research Center Beijing Beijing Conveyi LTD Beijing Beijing Glass Research Institute Co. LtdBeijing Beijing Institute of Technology Beijing Beijing Normal university Beijing Brown university ProvidenceRI Budker Institute of Nuclear Physics Novosibirsk Cadi Ayyad university Laboratory of Fundamental and Applied PhysicsPolydisciplinary FacultyMarrakech Cairo university Giza Center for Theory and Computation National Tsing Hua UniversityHsinchu Central china Normal university WuhanHubei Central South university ChangshaHunan Centro de Fisica Teorica de Particulas Universidade Tecnica de LisboaLisboa Chengdu KaitengSifang Digital Radio&TV Equipment Co. LtdChengduSichuan china academy of engineering physics MianyangSichuan china building materials academy Beijing china Center of Advanced Science and Technology Beijing china Institute of Atomic energy Beijing china Jiliang university HangzhouZhejiang china Nuclear Instrument CO. LTDBeijing china university of Geosciences Beijing china university of Geosciences WuhanHubei china university of Mining and Technology XuzhouJiangsu china West Normal university NanchongSichuan Chongqing university Department of PhysicsChongqing Chulalongkorn university Bangkok City university of Hong Kong Department of PhysicsHong Kong Cockcroft Institute Daresbury Cornell university IthacaNY CPPM(AMU/IPhU&CNRS/INP) Marseille Dalian Minzu university DalianLiaoning Dalian university of Technology Department of PhysicsDalian Deutsches Elektronen-Synchrotron DESY Hamburg Dzhelepov Laboratory of Nuclear Problems of Joint Institute for Nuclear Research(DLNP JINR) Dubna East china university Of Science And Technol

The Circular Electron Positron Collider(CEPC)is a large scientific project initiated and hosted by china,fostered through extensive collaboration with international *** complex comprises four accelerators:a 30 GeV Linac,a 1.1 GeV Damping Ring,a Booster capable of achieving energies up to 180 GeV,and a Collider operating at varying energy modes(Z,W,H,and tt).The Linac and Damping Ring are situated on the surface,while the subterranean Booster and Collider are housed in a 100 km circumference underground tunnel,strategically accommodating future expansion with provisions for a potential Super Proton Proton Collider(SPPC).The CEPC primarily serves as a Higgs *** its baseline design with synchrotron radiation(SR)power of 30 MW per beam,it can achieve a luminosity of 5×10^(34)cm^(-2)s^(-1)per interaction point(IP),resulting in an integrated luminosity of 13 ab^(-1)for two IPs over a decade,producing 2.6 million Higgs *** the SR power to 50 MW per beam expands the CEPC's capability to generate 4.3 million Higgs bosons,facilitating precise measurements of Higgs coupling at sub-percent levels,exceeding the precision expected from the HL-LHC by an order of *** Technical Design Report(TDR)follows the Preliminary Conceptual Design Report(Pre-CDR,2015)and the Conceptual Design Report(CDR,2018),comprehensively detailing the machine's layout,performance metrics,physical design and analysis,technical systems design,R&D and prototyping efforts,and associated civil engineering ***,it includes a cost estimate and a preliminary construction timeline,establishing a framework for forthcoming engineering design phase and site selection *** is anticipated to begin around 2027-2028,pending government approval,with an estimated duration of 8 *** commencement of experiments and data collection could potentially be initiated in the mid-2030s.

关键词： initiated exceeding precise

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基于Pareto的电池容量衰退权衡优化控制策略

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工程科学学报 2022年第11期44卷 1988-1997页

作者：林歆悠叶常青苏炼福州大学机械工程及自动化学院福州350002

由于插电式混合动力汽车电池可以通过电网获取比较廉价的电量,传统的控制策略只考虑充分利用电池电量,但忽略了过度使用电池,会加快动力电池容量的衰退.因此,如何权衡充分利用电池电量与抑制电池容量衰退是新的研究重点.基于电池的半经... 详细信息

由于插电式混合动力汽车电池可以通过电网获取比较廉价的电量,传统的控制策略只考虑充分利用电池电量,但忽略了过度使用电池,会加快动力电池容量的衰退.因此,如何权衡充分利用电池电量与抑制电池容量衰退是新的研究重点.基于电池的半经验衰退模型,引入电池利用程度因子,建立权衡电池容量衰退的能量管理策略.通过Pareto非劣目标域选取合适的权重因子,将多目标优化问题转化为单目标问题,采用动态规划算法获得权重系数全局最优解,通过权衡不同权重下的油耗和电池容量衰退程度选择最优权重系数.在燃油消耗相当的情况下,当权重系数为0.9时,可有效抑制电池寿命的衰减速度.最后,通过在线等效油耗最小策略仿真与在同一权重下的动态规划解进行比较来验证其有效性.

关键词：电池老化能量管理策略燃油消耗权重系数动态规划

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