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Decision-making Principles and Evaluation Frame of Harmonious Fiscal Policy

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Ecological Economy 2005年第4期1卷 76-79页

作者： xiang hongqiao School of Economics and Law Hubei Institute for Nationalities. Enshi 445000. P.R.China

Harmonious fiscal policy is the Inner requirement for Constructing Harmonious society and is an important means of realiziug such society. The harmonious fiscal policy should realize the harmony of “two hands”, the harmony of values, the unity of short-term and long-term harmony the unity of parts and the whole harmony, the unity of internal and external efficacy harmony. To scientifically evaluate harmony of fiscal policy is the prerequisite to bring harmonious fiscal policy to its full play.

关键词： harmonious fiscal policy internal harmony external efficacy harmony decision-making principles evaluation frame

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安全投入与企业安全生产最优决策

中南财经政法大学学报 2010年第2期 110-116页

作者：程启智向宏桥中南财经政法大学经济学院湖北武汉430073

本文运用均衡方法与收入效应和替代效应工具构建了一个企业安全生产最优决策模型及其分析框架,对较低的工亡赔偿标准、安全资本投入不足与安全事故频发之间的内在关系及其机制给出了一个严谨的经济学解说,并通过对国内例证的考察,验证... 详细信息

本文运用均衡方法与收入效应和替代效应工具构建了一个企业安全生产最优决策模型及其分析框架,对较低的工亡赔偿标准、安全资本投入不足与安全事故频发之间的内在关系及其机制给出了一个严谨的经济学解说,并通过对国内例证的考察,验证了其结论。文章发现:过低的工亡赔偿标准,在强化企业安全资本投入负激励的同时,又为其盲目增加产量而忽视安全风险提供了正激励,由此决定了20世纪90年代以来我国安全事故频发、死亡人数居高不下的局面;2004年我国提高了法定工亡赔偿标准,则从反向强化了其收入效应和替代效应,从而为企业增加安全资本投入和技术改进提供了正激励,由此决定了2004年以来的安全生产形势的持续好转。

关键词：工亡赔偿标准安全资本投入收入效应替代效应

Controllability Gramian-based measures of graph product networks

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Science China(Information Sciences) 2024年第10期67卷 315-331页

作者： Yuequan xiang Linying xiang School of Information Science and Engineering Northeastern University School of Artificial Intelligence Tiangong University

This paper addresses the controllability measures of composite networks based on graph products, in which the graph product networks are either Kronecker product networks or Kronecker sum *** primary objective pursued here is to reveal the controllability Gramian-based measure links between the graph product composite network and its subnetworks. First, the analytical expression of the average controllability for the Kronecker product network is derived by using the corresponding controllability measures of its subnetworks. An upper bound of volumetric control energy is further obtained for the Kronecker product network. Then, the upper bounds are derived for the controllability measures of the Kronecker sum network,which provide a valuable reference for designing controllable networks in practical applications. Finally, the controllability of the Kronecker product network is compared with that of the Kronecker sum network, and it is found that when the subnetworks satisfy certain conditions, the Kronecker product network has better average controllability than the Kronecker sum network.

关键词： composite network graph product controllability Gramian-based measure average controllability control energy

Dual-ion carrier storage through Mg^(2+) addition for high-energy and long-life zinc-ion hybrid capacitor

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International Journal of Minerals,Metallurgy and Materials 2024年第1期31卷 179-185页

作者： Junjie Zhang xiang Wu School of Materials Science and Engineering Shenyang University of TechnologyShenyang 110870China

Cation additives can efficiently enhance the total electrochemical capabilities of zinc-ion hybrid capacitors (ZHCs).However their energy storage mechanisms in zinc-based systems are still under ***,we modulate the electrolyte and achieve dual-ion storage by adding magnesium *** we assemble several Zn//activated carbon devices with different electrolyte concentrations and investigate their electrochemical reaction dynamic *** zinc-ion capacitor with Mg^(2+)mixed solution delivers 82 mAh·g^(-1)capacity at 1 A·g^(-1) and maintains 91%of the original capacitance after 10000 *** is superior to the other assembled zinc-ion devices in single-component *** finding demonstrates that the double-ion storage mechanism enables the superior rate performance and long cycle lifetime of ZHCs.

关键词： zinc-ion hybrid capacitor MgSO_(4) electrolyte rate performance storage mechanism

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国内外花卉旅游发展模式研究

旅游论坛 2014年第1期7卷 27-31页

作者：向宏桥河南理工大学旅游文化与经济研究所河南焦作454000

花卉旅游,是花卉产业与旅游产业有机结合的产物,是人们为了非工作目的而前往花卉资源集聚区域进行的花卉生态审美休闲与花文化体验认知活动。国内外花卉旅游的发展模式可以分为花卉旅游产业发展模式与花卉旅游营销发展模式两大类,而花... 详细信息

花卉旅游,是花卉产业与旅游产业有机结合的产物,是人们为了非工作目的而前往花卉资源集聚区域进行的花卉生态审美休闲与花文化体验认知活动。国内外花卉旅游的发展模式可以分为花卉旅游产业发展模式与花卉旅游营销发展模式两大类,而花卉旅游产业发展模式又表现为3种不同的发展路径。国内外花卉旅游发展的经验表明,高度重视花卉旅游发展,充分发挥政府主导作用,实现花卉产业与旅游业、花卉与文化的紧密结合,完善花卉旅游产品体系,是发展花卉旅游的关键。

关键词：花卉旅游花卉产业发展模式

Microstructure and mechanical properties of a cast TRIP-assisted multiphase stainless steel

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China Foundry 2024年第3期21卷 221-228页

作者： Meng-xin Wang Zi-xiang Wu Jing-yu He xiang Chen School of Materials Science and Engineering Tsinghua UniversityBeijing 100084China Key Laboratory for Advanced Materials Processing Technology Ministry of EducationBeijing 100084China

Stainless steels are used in a wide range of complex environments due to their excellent corrosion *** stainless steels can offer an excellent combination of strength,toughness and corrosion resistance due to the coexistence of different *** microstructure and mechanical properties of a novel cast multiphase stainless steel,composed of martensite,ferrite,and austenite,were investigated following appropriate heat treatment processes:solution treatment at 1,050℃ for 0.5 h followed by water quenching to room temperature,and aging treatment at 500℃ for 4 h followed by water quenching to room *** show reversed austenite is formed by diffusion of Ni element during aging process,and the enrichment of Ni atoms directly determines the mechanical stability of *** austenite with a lower Ni content undergoes a martensitic transformation during plastic *** tensile strength of the specimen exceeds 1,100 MPa and the elongation exceeds 24%after solid solution,and further increases to 1,247 MPa and 25%after aging *** enhancement is due to the TRIP effect of austenite and the precipitation of the nanoscale G-phase pinning dislocations in ferrite and martensite.

关键词： multiphase stainless steel mechanical properties TRIP effect reversed austenite G-phase

旅游地复合系统协调发展模式研究——从“焦作现象”到“本质模式”

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焦作大学学报 2014年第2期28卷 75-77页

作者：向宏桥河南理工大学旅游文化与经济研究所河南焦作454000

对焦作旅游发展的实践经验而言,"焦作现象"的本质在于旅游地复合系统协调发展模式。实现旅游子系统与其他子系统的复合协调发展,基础在于旅游子系统与生态子系统的复合协调,而与经济子系统的复合协调是动力,与政治子系统的复合协调是保... 详细信息

对焦作旅游发展的实践经验而言,"焦作现象"的本质在于旅游地复合系统协调发展模式。实现旅游子系统与其他子系统的复合协调发展,基础在于旅游子系统与生态子系统的复合协调,而与经济子系统的复合协调是动力,与政治子系统的复合协调是保障,与文化子系统的复合协调是灵魂,与社会子系统的复合协调是根本目标。

关键词：旅游地复合系统协调发展模式焦作现象

Highly homogeneous zero-index metamaterials make devices more compact and perform better

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Light(Science & Applications) 2024年第5期13卷 806-807页

作者： Wei-xiang Jiang State Key Laboratory of Millimeter Waves School of Information Science and EngineeringSoutheast University210096 NanjingChina

A highly homogeneous microwave zero-index metamaterial based on high-permittivity SrTiO3 ceramics is demonstrated to realize the small-aperture high-directivity *** a novel technique is a remarkable step forward to de... 详细信息

关键词： ceramics SrTiO3 Highly

循环经济的微观理论基础——生态效用论及人类选择理性

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再生资源与循环经济 2009年第12期2卷 15-19页

作者：向宏桥湖北民族学院少数民族生态经济研究中心湖北恩施445000

生态环境资源的日益稀缺,凸显了物质效用理论的局限。循环经济理念的产生体现了人类效用选择的理性回归。以生态效用理论为基础,揭示了人类效用选择的理性,从而构建了循环经济的微观理论基础,进一步分析了人口增长以及技术进步对循环经... 详细信息

生态环境资源的日益稀缺,凸显了物质效用理论的局限。循环经济理念的产生体现了人类效用选择的理性回归。以生态效用理论为基础,揭示了人类效用选择的理性,从而构建了循环经济的微观理论基础,进一步分析了人口增长以及技术进步对循环经济发展的影响。

关键词：循环经济生态效用人口增长技术进步