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Tungsten 2025年第1期7卷 32-49页

作者： Li-Rong Xiao Chen Chen Shuo Wang Zi-Yin Dai Hideo Kimura Cui Ni Chuan-xin hou Xue-Qin Sun Si-Jie Guo Wei Du Xiu-Bo Xie School of Environmental and Material Engineering Yantai University Bosch HUAYU Steering Systems (Yantai) Co. Ltd.Ytp/MFE University of Tennessee Knoxville Shandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta Shandong University of Aeronautics

MgH2is considered as a promising hydrogen storage material for its high hydrogen storage capacity,low cost and abundant resource ***,the low kinetics and high enthalpy formation of MgH2limit its wide *** the perspective of adding catalysts to enhance the hydrogen storage properties of Mg-MgH2,this article elaborated the main catalysts based on Ti and Nb transition elements,including single oxide catalysts,binary oxides catalysts（combined with Ni,Na,Sr,V,etc.）,multiple catalysts bound to carbon,and composite catalysts with Ti and Nb elements combined with MXene ***,the main pathways of various catalysts to reduce the reaction activity and broaden the hydrogen desorption channel were also *** Ti-based catalysts can enhance the reactive sites of the matrix by forming multivalent states,while Nb-based catalysts broaden the hydrogen reaction channels by forming tiny *** improving the size structure and enhancing the grain size stability,combined with carbon materials should be the future considerations.

关键词： Catalysts Mg-based hydrogen storage alloys Solid hydrogen storage Transition metal elements

中国绿色交通技术创新的时空特征及其影响因素

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地理科学 2025年第1期45卷 119-129页

作者：高鑫丁晨浩侯鑫段德忠重庆师范大学地理与旅游学院重庆401331 三峡库区地表过程与生态修复重庆市重点实验室重庆401331 华东师范大学地理科学学院上海200241 华东师范大学全球创新与发展研究院上海200062

绿色低碳交通是中国顺利实现“双碳目标”的必由之路,而绿色交通技术创新是发展绿色低碳交通的核心动力。借鉴OECD的绿色交通专利识别方法,本文建构了2001-2020年中国城市尺度的绿色交通专利申请量时空数据库,揭示了近20 a中国绿色交通... 详细信息

绿色低碳交通是中国顺利实现“双碳目标”的必由之路,而绿色交通技术创新是发展绿色低碳交通的核心动力。借鉴OECD的绿色交通专利识别方法,本文建构了2001-2020年中国城市尺度的绿色交通专利申请量时空数据库,揭示了近20 a中国绿色交通技术创新活动的时空分布特征,并基于时间、个体双固定效应的面板回归模型以及协整分析探讨了其内外部影响因素。研究发现:(1)道路运输类、运输中的促成技术类2个领域的创新引领着中国绿色交通技术创新。前者占比达62.8%,后者占比51.5%;(2)创新主体实现了由个人为主到企业为主的转换。企业创新主体占比达82.4%;(3)中国绿色交通技术创新的空间分异显著,且日趋集中,珠三角与长三角地区愈发成为绿色交通技术创新高地。深圳远超上海,在道路运输类、运输中的促成技术类2类最重要的创新类别中位列第1;(4)全国尺度,城市综合交通可达性、研发投入对城市绿色交通技术创新的产出起到普遍的促进作用,东部地区研发投入和城市综合交通可达性对绿色交通技术创新起到更大的正向影响,中部地区城市规模和研发投入发挥主要的促进作用,西部地区城市规模、城市交通物流产业区位商、外国直接投资及政府环境规制起到促进作用。创新门槛、外资作用、环境规制与环境现状对绿色交通技术创新的影响机制明显异于绿色技术创新。此外,绿色交通内部技术系统中,运输中的促成技术类创新对其他类别的技术创新有显著促进作用。

关键词：绿色交通技术创新 OECD专利分类运输中的促成技术

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New Potentials of Silicon and Germanium Crystals

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Chinese Physics Letters 1996年第1期13卷 39-41页

作者： LIU xin-hou Institute of Photographic Chemistry Academia SinicaBeijing 100101

In this paper,a new model of potential energy functions for atomic solids is given and applied to silicon and germanium *** potentials of Si and Ge crystals accurately reproduce experimental elastic constants and phon... 详细信息

关键词： Crystal dispersion solids

A Note on Z_3 -Connected Graphs with Degree Sum Condition

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Acta Mathematica Sinica,English Series 2012年第11期28卷 2161-2168页

作者： xin Min hou Department of Mathematics University of Science and Technology of China

A graph G satisfies the Ore-condition if d（x）＋d（y） ≥ ｜V（G）｜ for any xy E（G）. Luo et al. [European J. Combin., 2008] characterized the simple Z3-connected graphs satisfying the Ore-condition. In this paper, we characterize the simple Z3-connected graphs G satisfying d（x）＋d（y） ≥ ｜V（G）｜ - 1 for any xy E（G）, which improves the results of Luo et al.

关键词： Group connectivity degree sum condition

On the study of nonlinear dynamics of complex chemical reaction systems

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Science China Chemistry 2006年第1期49卷 1-11页

作者： xin houwen hou Zhonghuai Department of chemical physics University of Science and Technology of China Hefei 230026 China Department of chemical physics University of Science and Technology of China Hefei 230026 China

With ever-increasing attentions being paid to complex systems such as the life system, soft matter, and nano-systems, theoretical studies of non-equilibrium nonlinear problems involved in chemical dynamics are now of general interest. In this mini-review, we mainly give a brief introduction to some frontier topics in this field, namely, nonlinear state-state dynamics, nonlinear chemical dynamics on complex networks, and nonlinear dynamics in mesoscopic chemical reaction systems. Deep study of these topics will make great contribution to discovering new laws of chemical dynamics, to exploring new control methods of complex chemical processes, to figuring out the very roles of chemical proc-esses in the life system, and to crosslinking the scientific study of chemistry, physics and biology.

关键词： complex chemical reaction systems, nonlinear dynamics.

Codegree Threshold for Tiling k-graphs with Two Edges Sharing Exactly l Vertices

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Acta Mathematica Sinica,English Series 2020年第1期36卷 13-20页

作者： Lei YU xin Min hou Key Laboratory of Wu Wen-Tsun Mathematics School of Mathematical Sciences University of Science and Technology of China

Given integer k and a k-graph F,let t(k-1)(n,F)be the minimum integer t such that every k-graph H on n vertices with codegree at least t contains an *** integers k>3 and 0≤l≤k-1,let y(k,l)be a k-graph with two edges that shares exactly l *** and Zhao(*** Ser.A,(2015))asked the following question:For all k≥3,0≤l≤k-1 and sufficiently large n divisible by 2 k-l,determine the exact value of t_(k-1)(n,y(k,l)).In this paper,we show that t(k-1)(n,y(k,l))=n/(2 k-l)for k>3 and 1≤l≤k-2,combining with two previously known results of R?dl,Rucinski and Szemeredi(*** Ser.A,(2009))and Gao,Han and Zhao(Combinatorics,Probability and Computing,(2019)),the question of Han and Zhao is solved completely.

关键词： Hypergraph codegree factor

Preparation and photo-catalytic activity of TiO_2-coated medical stone-based porous ceramics

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International Journal of Minerals,Metallurgy and Materials 2013年第6期20卷 593-597页

作者： Ru-qin Gao xin-mei hou School of Environmental and Municipal Engineering North China University of Water Resources and Electric Power School of Metallurgical and Ecological Engineering University of Science and Technology Beijing

Medical stone-based porous ceramics as a carrier were prepared by ultra-fine grinding and low-temperature sintering method. Nano-TiO~ thin films were loaded on the carrier by chemical liquid deposition method using titanium tetrachloride as a precursor. The micro-morphology and microstructure of the synthesized samples were characterized using X-ray diffraction, scanning electron microscopy with energy dispersive spectrometry, and mercury injection method. The photo-catalytic activity of the TiO2 thin films was investigated by degrading formaldehyde. The main crystalline phase in the TiO2 thin films calcined at 550~C is anatase with the average particle size about 10 nm. The specific surface area of the carrier-coated nano-TiO2 increases from 3.68 to 5.32 m2/g. The formaldehyde removal rate of the TiO2/medical stone-based porous ceramics irradiated under an ultraviolet lamp for 120 min reaches 85.6%.

关键词： porous materials ceramics medical stone titanium dioxide thin films formaldehyde photocatalysis

Catalytic Oscillatory Oxidation of CO on Pt(110): on-off Control to Chaos

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Chinese Physics Letters 1998年第9期15卷 695-696页

作者： YANG Ling-fa hou Zhong-huai xin hou-wen Department of Chemical Physics University of Science and Technology of ChinaHefei 230026

An improved mean-field model,which specially takes into account pair correlation,was proposed to describe catalytic oscillatory oxidation of CO on Pt(110).By applying on-off control strategies under different frequency,the chemical oscillator shows an abundance of periodic doubling processes,even chaos response,and the route to the chaos and out of the chaos were both identified as period-doubling through analysis of its Lyapunov exponent *** response results reveal that structure delay effect plays an important role to the complexity of this system.

关键词： spectrum. chaos doubling

Maximal Subgroups in the Classical Groups Normalizing Solvable Subgroups

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Algebra Colloquium 2021年第2期28卷 181-194页

作者： xin hou Shangzhi Li Yucheng Yang Jiping Zhang Capital Normal University Beijing 100048China School of Mathematics and Systems Science Beihang University Beijing 100191China 不详

Let G be a classical group over an arbitrary field F,acting on an n-dimensional F-space V=V(n,F).All those maximal subgroups of G are classified each of which normalizes a solvable subgroup N of GL(V/F)not lying in F^... 详细信息

关键词： classical group over arbitrary field maximal subgroup solvable subgroup

Stochastic Multiresonance Induced by an Optimal Noise Pulse Interval Due to Hopping of Energy Levels

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Chinese Physics Letters 2001年第7期18卷 870-873页

作者： ZHANG Ji-Qian xin hou-Wen Department of Chemical Physics University of Science and Technology of ChinaHefei 230026

An interesting phenomenon,called the Stochastic multiresonance(SMR),induced by the variation of the noise pulse interval,is described and the formative mechanism of SMR is investigated by using the concept of hopping between different energy ***,the SMR can be realized by choosing the optimal noise pulse interval or selecting the appropriate noise intensity.

关键词： resonance SMR Optimal