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journal of Integrative Plant Biology 2010年第8期52卷 704-711页

作者： harvey j.m.hou Department of Chemistry and Biochemistry University of Massachusetts Dartmouth North Dartmouth

To address the issues of energy crisis and global warming, novel renewable carbon-free or carbon-neutral energy sources must be identified and developed. A deeper understanding of photosynthesis is the key to provide a solid foundation to facilitate this transformation. To mimic the water oxidation of photosystem II oxygen evolving complex, mn-oxo complexes and Co-phosphate catalytic material were discovered in solar energy storage. Building on these discoveries, recent advances in solar energy conversion showed a compelling working principle by combing the active mn-oxo and Co-based catalysts in water splitting with semiconductor heteronanostructures for effective solar energy harnessing. In this review the appealing systems including mn-oxo tetramer/Nafion, mn-oxo dimer/TiO2, mn-oxo oligomer/WO3, Co-Pi/Fe2O3, and Co-Pi/ZnO are summarized and discussed. These accomplishments offer a promising framework and have a profound impact in the field of solar fuel production.

关键词： mn Structural and mechanistic Aspects of mn-oxo and Co-based Compounds in Water Oxidation Catalysis and Potential Applications in Solar Fuel Production II Figure

光合作用和法庭化学中光声光谱分析研究进展（英文）

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分析科学学报 2019年第6期35卷 685-700页

作者：侯建敏 Laboratory of Forensic Analysisand Photosynthesis Department of Physical/Forensic SciencesAlabama State University

本文总结了光声光谱,包括时间分辨光声光谱方法在光合作用与法庭化学的应用,同时对存在的问题和未来的可能发展方向提出了一些看法。光合作用是世界上最重要的化学反应之一,其中光合作用反应中心的电子传递反应是太阳能转化和储存的关... 详细信息

本文总结了光声光谱,包括时间分辨光声光谱方法在光合作用与法庭化学的应用,同时对存在的问题和未来的可能发展方向提出了一些看法。光合作用是世界上最重要的化学反应之一,其中光合作用反应中心的电子传递反应是太阳能转化和储存的关键和核心。几十年来,有关光合作用电子传递反应的动力学方面经过长期和系统的研究已取得显著进展。但是光合作用电子传递反应的热力学方面进展相对较慢。光声光谱特别是时间分辨光声光谱方法能够跟踪光反应产生的声波的微小变化,从而定量地测定光化学反应产生的热量和体积变化,例如光声光谱在紫色细菌反应中心,光系统Ⅰ和光系统Ⅱ电子传递反应的焓变、熵变和体积变化方面取得一系列重要的结果。这些结果对于认识膜蛋白的光能转化机理具有重要意义。但是光声光谱研究光合作用方面尚存在亟待解决的问题,例如不同植物和藻类细胞样品的实验测量结果还存在明显分歧,光合作用电子传递反应的一些步骤,特别是光合作用放氧过程还无法准确测定。光声光谱作为一种非破坏性分析方法对于法庭化学的样品分析方面也正在发挥积极作用,近年来光声光谱方法开始应用于法庭化学的样品鉴定,分析的样品包括爆炸危险品、表面油漆、染料、纺织品以及生物细胞组织等。应该指出光声光谱方法在法庭化学中的研究还处于初期阶段,未来的方向包括需要对单种样品进行系统性研究,对更多类型样品进行详细分析测定,提高光声光谱方法的准确性和选择性,以及对相关实验装置和分析理论的建立和完善。鉴于光声光谱分析是一种非破坏性实验技术和能够提供化学反应热力学独特信息的优越性,相信光声光谱可以在光合作用和法庭化学以及其他相关领域发挥越来越大的作用。

关键词：光合作用法庭化学光声光谱

Roles of manganese in photosystem II dynamics to irradiations and temperatures

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Frontiers in Biology 2013年第3期8卷 312-322页

作者： Xuejing hou harvey j. m. hou Department of Chemistry and Biochemistry University of Massachusetts Dartmouth North Dartmouth MA 02747 USA Department of Physical Sciences Alabama State University Montgomery AL 36104 USA

The most amazing chemistry is the light-driven water splitting reaction occurred in the oxygen-evolving complex of phototsystem II in higher plants, green algae, and cyanobacteria. mn, in the form of mn4CaOs cluster in photosystem II, is responsible for the catalytic water splitting reaction as well as plays roles in photosystem II dynamics to irradiation and temperatures. manganese hypothesis of UV-initiated photoinhibition as a direct target is established, and thermal inactivation of photosystem II involves the valence and structural changes of manganese. Recent progresses in understanding the roles of manganese in photoinhibition especially under UV light and in thermal inactivation including elevated temperatures using synthetic models and native PS II complexes are summarized and evaluated. Potential problems and possible solutions are discussed and presented.

关键词： photosynthesis manganese photosystem II irradiation temperature stress

Interfacial Zn2+-solvation regulator towards reversible and stable Zn anode

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journal of Energy Chemistry 2025年第1期100卷 684-692页

作者： miao Zhou Xiongbin Luo Hang Li Shan Guo Zhuang Tong Xiaotao Zhou Xu Li Zhaohui hou Shuquan Liang Guozhao Fang College of mechanical Engineering Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials Hunan Institute of Science and Technology School of materials Science and Engineering Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province Central South University College of materials and metallurgy Guizhou University National Energy metal Resources and New materials Key Laboratory Central South University

Aqueous zinc-ion batteries （AZIBs） are fundamentally challenged by the instability of the electrode/electrolyte interface,predominantly due to irreversible zinc （Zn） deposition and hydrogen ***,the intricate mechanisms behind the electrochemical discrepancies induced by interfacial Zn2+-solvation and deposition behavior demand comprehensive *** molecules endowed with special functional groups （such as hydroxyl,carboxyl,etc.） have the potential to significantly optimize the solvation structure of Zn2+and regulate the interfacial electric double layer （EDL）.By increasing nucleation overpotential and decreasing interfacial free energy,these functional groups facilitate a lower critical nucleation radius,thereby forming an asymptotic nucleation model to promote uniform Zn ***,this study presents a pioneering approach by introducing trace amounts of n-butanol as solvation regulators to engineer the homogenized Zn （H-Zn） anode with a uniform and dense *** interfacial reaction and structure evolution are explored by in/ex-situ experimental techniques,indicating that the H-Zn anode exhibits dendrite-free growth,no by-products,and weak hydrogen evolution,in sharp contrast to the bare ***,the H-Zn anode achieves a remarkable Zn utilization rate of approximately 20% and simultaneously sustains a prolonged cycle life exceeding 500 ***,the H-Zn//NH4V4O10（NVO） full battery showcases exceptional cycle stability,retaining 95.04%capacity retention after 400 cycles at a large current density of 5 A *** study enlightens solvation-regulated additives to develop Zn anode with superior utilization efficiency and extended operational lifespan.

关键词： Solvation

An efficient method for unfolding kinetic pressure driven VISAR data

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High Power Laser Science and Engineering 2015年第3期3卷 50-58页

作者： m.Hess K.Peterson A.harvey-Thompson Sandia National Laboratories

Velocity Interferometer System for Any Reflector(VISAR) [Barker and Hollenbach, j. Appl. Phys. 43, 4669(1972)]is a well-known diagnostic that is employed on many shock physics and pulsed-power experiments. With the VISAR diagnostic, the velocity on the surface of any metal flyer can be found. For most experiments employing VISAR, either a kinetic pressure [Grady, mech. mater. 29, 181(1998)] or a magnetic pressure [Lemke et al., Intl j. Impact Eng. 38,480(2011)] drives the motion of the flyer. moreover, reliable prediction of the time-dependent pressure is often a critical component to understanding the physics of these experiments. Although VISAR can provide a precise measurement of a flyer's surface velocity, the real challenge of this diagnostic implementation is using this velocity to unfold the timedependent pressure. The purpose of this paper is to elucidate a new method for quickly and reliably unfolding VISAR data.

关键词： laser driven blast wave pulsed-power VISAR

Kinetics and mechanistic investigation of epoxide/CO2 cycloaddition by a synergistic catalytic effect of pyrrolidinopyridinium iodide and zinc halides

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journal of Energy Chemistry 2019年第10期28卷 35-42页

作者： Abdul Rehman Valentine C. Eze m.F.m.Gunam Resul Adam harvey School of Engineering Merz CourtNewcastle UniversityNewcastle Upon Tyne NE1 7RUUK Department of Chemical and Polymer Engineering University of Engineering and Technology LahoreFaisalabad CampusPakistan

Formation of styrene carbonate (SC) by the cycloaddition of CO2 to styrene oxide (SO) catalysed by pyrrolidinopyridinium iodide (PPI) in combination with zinc halides (ZnCl2, ZnBr2 and ZnI2) was investigated. Complete conversion of the SO to SC was achieved in 3 h with 100% selectivity using 1/0.5 molar (PPI/ZnI2) catalyst ratio under mild reaction conditions i.e., 100℃ and 10 bar CO2 pressure. The synergistic effect of ZnI2 and PPI resulted in more than 7-fold increase in reaction rate than using PPI alone. The cycloaddition reaction demonstrated the first-order dependence with respect to the epoxide, CO2 and catalyst concentrations. moreover, the kinetic and thermodynamic activation parameters of SC formation were determined using the Arrhenius and Eyring equations. The positive values of △H(42.8 kj mol^-1) and △G(102.3 kj mol^-1) revealed endergonic and chemically controlled nature of the reaction, whereas the large negative values of △S(-159.4 j mol^-1 K^-1) indicate a highly ordered activated complex at the transition state. The activation energy for SC formation catalyzed by PPI alone was found to be 73.2 kj mol^-1 over a temperature range of 100-140℃, which was reduced to 46.1 kj mol^-1 when using PPI in combination with ZnI2 as a binary catalyst. Based on the kinetic study, a synergistic acid-based reaction mechanism was proposed.

关键词： Cycloaddition CO2 utilization Cyclic carbonates Homogeneous catalysis Activation energy

Effect of Genome-Wide Genotyping and Reference Panels on Rare Variants Imputation

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journal of Genetics and Genomics 2012年第10期39卷 545-550页

作者： hou-Feng Zheng martin Ladouceur Celia m.T. Greenwood j. Brent Richards Department of medicine Human Genetics McGill University Montreal Quebec H3T 1E2 Canada Department of Epidemiology and Biostatistics Lady Davis Institute for Medical Research Jewish General Hospital Montreal Quebec H3T 1E2 Canada Research Center of montreal Heart Institute Montreal Quebec HIT 1C8 Canada Department of Oncology McGill University Montreal Quebec H3T IE2 Canada Twin Research and Genetic Epidemiology King's College London London SE1 7EH United Kingdom

Common variants explain little of the variance of most common disease, prompting large-scale sequencing studies to understand the contribution of rare variants to these diseases. Imputation of rare variants from genome-wide genotypic arrays offers a cost-efficient strategy to achieve necessary sample sizes required for adequate statistical power. To estimate the performance of imputation of rare variants, we imputed 153 individuals, each of whom was genotyped on 3 different genotype arrays including 317k, 610k and 1 million single nucleotide polymorphisms （SNPs）, to two different reference panels： Hapmap2 and 1000 Genomes pilot march 2010 release （1KGpilot） by using ImPUTE version 2. We found that more than 94% and 84% of all SNPs yield acceptable accuracy （info 〉 0.4） in Hapmap2 and 1KGpilot-based imputation, respectively. For rare variants （minor allele frequency （mAF）〈5%）, the proportion of well- imputed SNPs increased as the mAF increased from 0.3% to 5% across all 3 genome-wide association study （GWAS） datasets. The proportion of well-imputed SNPs was 69%, 60% and 49% for SNPs with a mAF from 0.3% to 5% for 1m, 610k and 317k, respectively. None of the very rare variants （mAF 〈 0.3%） were well imputed. We conclude that the imputation accuracy of rare variants increases with higher density of genome-wide genotyping arrays when the size of the reference panel is small. Variants with lower mAF are more difficult to impute. These findings have important implications in the design and replication of large-scale sequencing studies.

关键词： Genotype imputation Genome-wide association study 1000 Genome Project Hapmap Rare variant Common disease

multi-layered plate finite element models with node-dependent kinematics for smart structures with piezoelectric components

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Chinese journal of Aeronautics 2021年第8期34卷 164-175页

作者： Guohong LI Erasmo CARRERA Yuliang hou Gennady m.KULIKOV mUL2 Group Department of Mechanical and Aerospace EngineeringPolitecnico di TorinoTorino 10129Italy Laboratory of Intelligent materials and Structures Tambov State Technical UniversityTambov 392000Russia School of mechanical and Power Engineering Zhengzhou UniversityZhangzhou 450001China

This article presents a type of plate Finite Element(FE)models with adaptive mathematical refinement capabilities for modeling laminated smart structures with piezoelectric layers or distributed *** p-version shape functions are used in combination with the higher-order Layer-Wise(LW)kinematics adopting hierarchical Legendre ***-Dependent Kinematics(NDK)is employed to implement local LW models in the regions with piezoelectric components and simulate the global substrate structure with the Equivalent Single-Layer(ESL)*** the proposed NDK FE models,the electro-mechanical behavior of smart structures can be predicted with high fidelity and numerical efficiency,and various patch configurations can be conveniently modeled through one set of mesh ***,the effectiveness and efficiency of the NDK FE approach are assessed through numerical examples and its application is demonstrated.

关键词： Finite element Laminated composites Piezoelectric Refined plate theory Smart structures

COmPARISON OF FATIGUE AND CREEP BEHAVIOR BETWEEN 2D AND 3D-C/SiC COmPOSITES

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Acta metallurgica Sinica(English Letters) 2004年第4期17卷 569-574页

作者： D.Han S.R.Qiao m.Li j.T.hou X.j.Wu Ultra-high-temperature Thermostructural Composites Laboratory Northwestern Polytechnical UniversityXi'an 710072 China

The differences of tension-tension fatigue and tensile creep characters of 2D-C/SiC and 3D-C/SiC composites have been scrutinized to meet the engineering needs. Experiments of tension-tension fatigue and tensile creep are carried out under vacuum high temperature condition. All of the high temperature fatigue curves are flat; the fatigue curves of the 2D-C/SiC are flatter and even parallel to the horizontal axis. While the tension-tension fatigue limit of the 3D-C/SiC is higher than that of the 2D-C/SiC, the fiber pullout length of the fatigue fracture surface of the 3D-C/SiC is longer than that of the 2D-C/SiC, and fracture morphology of the 3D-C/SiC is rougher, and pullout length of the fiber tows is longer. At the same time the 3D-C/SiC has higher tensile creep resistance. The tensile curve and the tensile creep curve of both materials consist of a series of flat step. These phenomena can be explained by the non-continuity of the damage.

关键词： 2D-C/SiC 3D-C/SiC vacuum high-temperature tensile creep fatigue

Improving the energy efficiency of surface dielectric barrier discharge devices for plasma nitric oxide conversion utilizing active flow control

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Chinese journal of Chemical Engineering 2023年第1期53卷 270-279页

作者： An Wang Zhongyu hou National Key Laboratory of Science and Technology on micro/Nano Fabrication Shanghai Jiao Tong UniversityShanghai 200240China Department of micro/Nano Electronics School of Electronic Information and Electrical EngineeringShanghai Jiao Tong UniversityShanghai 200240China

Improving energy efficiency in plasma NO removal is a critical *** the surface dielectric barrier discharge(SDBD)device is considered as a combination of multiple plasma actuators,the induced plasma aerodynamic effect cannot be ignored,which can affect the mass transfer,then affect the chemical *** SDBD devices with different electrode arrangements are studied for NO *** correspond to different flow *** find that the energy efficiency in an SDBD device with a common structure(Type 1)is 28%lower than that in SDBD devices with a special arrangement(Types 2–5).Two reasons may explain the ***,fewer active species are produced in Type 1 because the development of discharge is hindered by the mutually exclusive electric field forces caused by the symmetrically distributed charged ***,the plasma wind induced by the plasma actuator can enhance the mass and heat *** mixing of reactants and products is better in Types 2–5 than Type 1 due to higher turbulence kinetic energy.

关键词： Flue gas Radical Oxidation Surface dielectric barrier discharge(SDBD) Plasma aerodynamic effect Plasma NO conversion