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Energy Engineering 2024年第5期121卷 1263-1289页

作者： Yang Li Jianjun Zhao Xiaolong Yang He wang yuyan wang College of Electrical Engineering Northeast Electric Power UniversityJilin132011China Smart Distribution Network Center State Grid Jibei Electric Power Co.Ltd.Qinhuangdao066000China

Distributed photovoltaic(PV)is one of the important power sources for building a new power system with new energy as the main *** rapid development of distributed PV has brought new challenges to the operation of distribution *** order to improve the absorption ability of large-scale distributed PV access to the distribution network,the AC/DC hybrid distribution network is constructed based on flexible interconnection technology,and a coordinated scheduling strategy model of hydrogen energy storage(HS)and distributed PV is ***,the mathematical model of distributed PV and HS system is established,and a comprehensive energy storage system combining seasonal hydrogen energy storage(SHS)and battery(BT)is ***,a flexible interconnected distribution network scheduling optimization model is established to minimize the total active power loss,voltage deviation and system operating ***,simulation analysis is carried out on the improved IEEE33 node,the NSGA-II algorithm is used to solve specific examples,and the optimal scheduling results of the comprehensive economy and power quality of the distribution network are *** with the method that does not consider HS and flexible interconnection technology,the network loss and voltage deviation of this method are lower,and the total system cost can be reduced by 3.55%,which verifies the effectiveness of the proposed method.

关键词： Seasonal hydrogen storage flexible interconnection AC/DC distribution network photovoltaic absorption scheduling strategy

Decision and Coordination of an E-commerce Supply Chain Considering Returns and Network Externalities

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Journal of Systems Science and Systems Engineering 2024年第5期33卷 552-575页

作者： Liang Shen Fei Lin yuyan wang Luping Ding T.C.E.Cheng Dexia wang School of Public Finance and Taxation Shandong University of Finance and Economicsjinan 250014China bschool of Management Science and Engineering Shandong University of Finance and EconomicsJinan 250014China PolyU Business School The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong 999077China

Considering the large number of returns in online sales and the network externalities of e-platforms,we develop a decentralized model and a centralized model to explore the impacts of returns and network externalities on e-commerce supply chain(ECSC)*** show that in the decentralized model,the service level,price,market demand,and ECSC members’profits increase with the network externality ***,the service level and price increase,while the market demand and ECSC members’profits decrease with the product return *** centralized model is the optimal operating mode when it is properly *** design the“commission and return cost-sharing”contract to optimize ECSC,in which the proportion of the e-platform’s sharing of the return handling cost is exactly equal to the proportion of the system profit after *** on the decentralized model,we develop two extended models in which we endogenize the impacts of the service level and return rate on the network externality *** comparisons between the extended and decentralized models,we show that high-quality service can improve ECSC’s profitability,while a high return rate hurts its economic performance.

关键词： E-commerce supply chain coordination mechanism network externalities return products

Optimization on magnetic properties of Nd-doped Fe_(3)O_(4) nanoparticles for magnetic shielding fabrics

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Journal of Rare Earths 2024年第4期42卷 683-689页

作者： Xiaolei Song Congzhu Xu yuyan wang Huizhen Ke Yonggui Li Qufu Wei Xinqun Feng Faculty of Clothing and Design Minjiang UniversityFuzhou350108China Fujian Key Laboratory of Novel Functional Textile Fibers and Materials Minjiang UniversityFuzhou350108China College of Textile and Clothing Jiangnan UniversityWuxi214122China College of Fashion and Design Donghua UniversityShanghai201620China

High magnetic protective fabrics with rare earth Nd doped Fe_(3)O_(4) nanoparticles were fabricated via a grafting *** structure,crystal form,and elemental composition of nanoparticles were investigated by transmission electron microscopy,energy dispersive X-ray,X-ray powder diffraction,and X-ray photoelectron *** obtained NdFe_(2)O_(4) nanoparticles show spherical shape with fine dispersion and reasonable element ***,they demonstrate fine superparamagnetic properties with a magnetic saturation value of 29.25 A·m^(2)/g and low coercivity of 1.902 mT through the vibrating sample magnetometry technique,which can be well developed in magnetic shielding protective ***,the cotton fabrics with plain weave were finished by a proofing rapier loom as a *** NdFe_(2)O_(4) nanoparticles underwent some appropriate surface modification and then were grafted onto the cotton fabrics by a bridge agent of N,N’-dissuccinimidyl *** morphology,structure,dispersion effect,and electromagnetic protective properties of the fabrics were observed through scanning electron microscopy,Fourier infrared spectroscopy,thermogravimetric analysisdifferential scanning calorimetry(TG-DSC),and a vector network *** reliable fabrics with grafting reaction on the interface are expected to have potential applications in the field of electromagnetic protection and biomedicine fields.

关键词： Magnetic property Nd Fe_(3)O_(4)nanoparticles Magnetic shielding Fabrics Rare earths

Photonic neuromorphic architecture for tens-of-task lifelong learning

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Light(Science & Applications) 2024年第3期13卷 519-530页

作者： Yuan Cheng Jianing Zhang Tiankuang Zhou yuyan wang Zhihao Xu Xiaoyun Yuan Lu Fang Sigma Laboratory Department of Electronic EngineeringTsinghua UniversityBeijing 100084China Beijing National Research Center for Information Science and Technology(BNRist) Beijing 100084China Institute for Brain and Cognitive Science Tsinghua University(THUIBCS)Beijing 100084China

Scalable,high-capacity,and low-power computing architecture is the primary assurance for increasingly manifold and large-scale machine learning *** electronic artificial agents by conventional power-hungry processors have faced the issues of energy and scaling walls,hindering them from the sustainable performance improvement and iterative multi-task *** to another modality of light,photonic computing has been progressively applied in high-efficient neuromorphic ***,we innovate a reconfigurable lifelong-learning optical neural network(L2 ONN),for highly-integrated tens-of-task machine intelligence with elaborated algorithm-hardware *** from the inherent sparsity and parallelism in massive photonic connections,L2 ONN learns each single task by adaptively activating sparse photonic neuron connections in the coherent light field,while incrementally acquiring expertise on various tasks by gradually enlarging the *** multi-task optical features are parallelly processed by multi-spectrum representations allocated with different *** evaluations on freespace and on-chip architectures confirm that for the first time,L2 ONN avoided the catastrophic forgetting issue of photonic computing,owning versatile skills on challenging tens-of-tasks(vision classification,voice recognition,medical diagnosis,etc.)with a single ***,L2 ONN achieves more than an order of magnitude higher efficiency than the representative electronic artificial neural networks,and 14×larger capacity than existing optical neural networks while maintaining competitive performance on each individual *** proposed photonic neuromorphic architecture points out a new form of lifelong learning scheme,permitting terminal/edge AI systems with light-speed efficiency and unprecedented scalability.

关键词： life neural versatile

Neutrophil extracellular traps induced by interleukin 8 via CXCR1/2 promote the progression of gastric carcinoma through transcription factor IIB-related factor 1 and cyclin

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Genes & Diseases 2024年第2期11卷 575-578页

作者： Qianling wang Yiyin Zhang Wenxi Ding Cheng Feng yuyan wang Xiaoli Wei Ziting Qu Hui wang Xiaoying Liu Hua wang Kangsheng Gu Department of Oncology The First Affiliated Hospital of Anhui Medical UniversityHefeiAnhui 230022China School of Life Sciences Anhui Medical UniversityHefeiAnhui 230032China

Neutrophils constitute a significant portion of the immune cells present within the tumor *** generated by our group has confirmed neutrophils to be an adverse independent prognostic factor affecting the disease-free survival of gastric carcinoma(GC)patients.1 Neutrophil extracellular traps(NETs),protein-covered DNA webs that interact with tumor cells in the tumor microenvironment,were detected in GC tissues and found to clinically associated with disease progression in our previous study.2 NETosis could be mediated by a series of agonists,such as interleukin 8(IL-8).3 However,the mechanism of IL-8 in the progression of GC occurs via NETs remains *** this study,we identified that IL-8-mediated NETosis can promote the proliferation,migration,and invasion of GC cells in vitro,which can be abrogated by NET degradation through deoxyribonucleaseI(DNase I)or IL-8 suppression through neutralizing *** of NETs by DNase I or blockade of the IL-8-CXC chemokine receptor 2(CXCR2)axis could result in growth retardation in mouse *** also confirmed that NETs may influence the biological behavior of GC cells by up-regulating the expression of transcription factor IB-related factor 1(BRF1)and cyclin p21/p27.

关键词： invasion gastric progression

基于政府动态补贴区块链技术的闭环供应链决策与协调研究

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系统工程理论与实践 2024年第3期44卷 1053-1067页

作者：王玉燕高俊宏山东财经大学管理科学与工程学院济南250014

考虑由单一制造商和单一零售商组成的闭环供应链,构建政府动态补贴区块链技术的集中决策和分散决策模型,并进行分析和比较.在此基础上,设计协调机制以最大程度发挥政府动态补贴的作用,保障闭环供应链的运作.研究表明:1)消费者的溯源偏... 详细信息

考虑由单一制造商和单一零售商组成的闭环供应链,构建政府动态补贴区块链技术的集中决策和分散决策模型,并进行分析和比较.在此基础上,设计协调机制以最大程度发挥政府动态补贴的作用,保障闭环供应链的运作.研究表明:1)消费者的溯源偏好会促进闭环供应链引入区块链技术;2)政府动态补贴会降低产品批发价格,对促进产品循环利用和提升区块链溯源水平有积极影响,闭环供应链系统及其成员的利润增加.当消费者的溯源偏好低于某一特定阈值时,政府动态补贴会促使产品零售价格降低;3)集中决策下,闭环供应链的系统利润更高,回收努力成本分摊契约协调使分散决策下制造商和零售商收益达到双赢效果,通过非对称Nash均衡谈判能够实现契约协调后动态盈余收益的分配.本研究为政府有关部门的支持策略制定提供了理论依据,同时为闭环供应链企业引入区块链提供了重要的管理启示,有助于提升供应链的效率和可持续发展能力.

关键词：动态补贴区块链闭环供应链协调 Nash谈判

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风险规避下电商闭环供应链的模式选择研究

系统科学与数学 2024年第8期44卷 2278-2302页

作者：王玉燕杨鲁琦山东财经大学管理科学与工程学院济南250014 山东师范大学商学院济南250014

构建了制造商与电商平台组成的电商二级闭环供应链,现阶段主要有两种产品销售模式:批发和直销模式,在这两种销售模式下,回收服务可以由电商平台承担,也可以由制造商承担.销售模式与回收服务策略的结合产生了四种典型的运营模式:批发直... 详细信息

构建了制造商与电商平台组成的电商二级闭环供应链,现阶段主要有两种产品销售模式:批发和直销模式,在这两种销售模式下,回收服务可以由电商平台承担,也可以由制造商承担.销售模式与回收服务策略的结合产生了四种典型的运营模式:批发直接回收(SM),批发委托回收(SR),直销直接回收(MM),直销委托回收(MR).在此基础上,分析供应链成员风险规避行为对定价回收和运营模式选择的影响.研究发现:1)当制造商风险规避时,大部分情况下制造商更偏好MM模式,电商平台的选择则受到风险规避和佣金率的联合影响,如果佣金率较大,在风险规避程度不高时选择MR模式,在风险规避程度较高时选择SR模式.2)当电商平台风险规避时,制造商在风险规避程度较低且佣金率较小时选择MM模式,风险规避程度较高且佣金率较大时选择SM模式;电商平台在风险规避程度较低时,随佣金率的增大,最优决策从SM模式转为MR模式.此外,研究发现回收补偿水平提高使得制造商更偏好委托回收模式.最后,考虑电商平台先确定销售模式制造商再确定回收模式的战略互动情景来探讨不同风险规避程度下的均衡模式.

关键词：风险规避 E-CLSC 多元化模型销售-回收

低碳合作供应链的内部合作协调与外部补贴激励机制设计

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经济研究 2024年第6期59卷 164-183页

作者：王玉燕林飞申亮山东财经大学管理科学与工程学院 250014 山东财经大学财政税务学院 250014

本文综合考虑合作成员的成本协同效应、信息不对称下的道德风险和碳减排的外部效应,构建了低碳合作供应链(LC-CSC)双边道德风险模型。针对模型均衡策略及其影响因素的解析显示,成本协同效应、碳定价及消费者低碳偏好均会激励减排行为,... 详细信息

本文综合考虑合作成员的成本协同效应、信息不对称下的道德风险和碳减排的外部效应,构建了低碳合作供应链(LC-CSC)双边道德风险模型。针对模型均衡策略及其影响因素的解析显示,成本协同效应、碳定价及消费者低碳偏好均会激励减排行为,而道德风险引致成员产生的“机会主义”行为会削弱成员的碳减排努力。为此,本文求解了LC-CSC内部“合作协调契约”,并证明该契约对于内部成员的合作关系是公平有效率的。本文进一步发现,减排的正外部效应导致的“市场失灵”也会使得成员碳减排努力程度产生不足,需及时引入政府“补贴激励机制”来弥补,因此本文设计了政府事前补贴和事后补贴两种激励机制,以及兼顾减排社会福利和成员利润来剖析LC-CSC外部最优“补贴激励机制”。本文证明,当提供减排公共配套设施对成员减排成本的折扣力度较大时,政府应采用完善配套公共基础设施的事前补贴;反之,采用基于企业碳减排收益比例进行返还的事后补贴策略将更有利于社会福利。本文还利用中国碳交易试点城市的数据进行数值仿真,验证了模型的有效性。

关键词：低碳合作供应链成本协同效应双边道德风险协调契约补贴激励

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国土空间规划体系下交通规划改革思路

黑龙江交通科技 2024年第6期47卷 179-182页

作者：王雨嫣中铁长江交通设计集团有限公司重庆150040

国土空间规划体系的新调整背景下,交通规划的对应调整成为推动经济高质量发展的重要举措。基于国土空间和交通规划的关系对当前交通发展存在的问题进行了分析,规划体系建设的不完善性以及建设方案的滞后性是影响交通建设协调发展的重要... 详细信息

国土空间规划体系的新调整背景下,交通规划的对应调整成为推动经济高质量发展的重要举措。基于国土空间和交通规划的关系对当前交通发展存在的问题进行了分析,规划体系建设的不完善性以及建设方案的滞后性是影响交通建设协调发展的重要原因。根据交通规划改革思路,以重庆轨道交通六号线改造方案为依据,提出要在结合居民用地辐射范围和保证站线交通流量的基础上进行方案设计,实现山地城市轨道交通配套能力的提升。在今后国土空间交通规划设计时,要以全域视角进行考虑和编制立体交通网,注重道路网建设与国土空间规划的匹配情况和衔接难点,重量重效发展交通体系格局。

关键词：国土空间规划交通规划轨道交通资源环境辐射范围

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风景园林格局影响下颗粒物时空分布特征研究

环境科学与管理 2024年第4期49卷 144-148页

作者：王玉砚西安翻译学院陕西西安710105

为更充分地发挥园林景区对颗粒物的调控作用,实现空气污染的分区防治,分析颗粒物在风景园林格局影响下的时空分布特征。以修复自然生态功能、优化生态环境为目标,规划景区格局。通过整合获取的格局数据与颗粒物数据,对比规划前后颗粒物... 详细信息

为更充分地发挥园林景区对颗粒物的调控作用,实现空气污染的分区防治,分析颗粒物在风景园林格局影响下的时空分布特征。以修复自然生态功能、优化生态环境为目标,规划景区格局。通过整合获取的格局数据与颗粒物数据,对比规划前后颗粒物浓度质量的时空变化。经分析发现,新格局对空气污染颗粒物具有较强的过滤、阻滞与消减作用,在时间分布上,颗粒物浓度呈现出冬季>秋季>春季>夏季的规律;在空间分布上,呈娱乐区>休闲区>文化区>体验区>生态区规律。因此,通过合理规划景区格局,可以有效改善空气质量,提高城市居民的生活质量。

关键词：风景园林格局颗粒物景观格局指数时间分布特征空间分布特征