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Singly and Doubly Charged Projectile Fragments in Nucleus-Emulsion Collisions at Dubna Energy in the Framework of the Multi-Source Model

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Chinese Physics Letters 2011年第8期28卷 54-57页

作者： WANG Er-Qin liu fu-hu Magda ARahim SFakhraddin SUN Jian-Xin Institute of Theoretical Physics Shanxi UniversityTaiyuan 030006 Department of Physics Faculty of ScienceSana'a UniversityRepublic of Yemen School of Engineering Shanxi Datong UniversityDatong 037003

The multiplicity distributions of projectile fragments emitted in interactions of different nuclei with emulsion are studied by using a multi-source *** calculated results show that the projectile fragments can be described by the model and each source contributes an exponential *** the weighted sum of the folding result of many exponential distributions,a multi-component Erlang distribution is used to describe the experimental *** relationship between the height(or width)of the distribution and the mass of the incident projectile,as well as the dependence of projectile fragments on target groups,are investigated too.

关键词： exponential distribution Collisions

Dependence of Elliptic Flow on Transverse Momentum in √S_(NN) =200 GeV Au-Au and √S_(NN) =2.76 TeV Pb-Pb Collisions

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Chinese Physics Letters 2012年第7期29卷 67-70页

作者： LI Bao-Chun fu Yuan-Yuan WANG Li-Li WANG Er-Qin WEN Xin-Jian liu fu-hu Department of Physics and Institute of Theoretical Physics Shanxi UniversityTaiyuan 030006 Department of Mathematics Business College of Shanxi UniversityTaiyuan 030031

We investigate the dependence of elliptic flows v2 on transverse momentum PT for charged hadrons produced in nucleus-nucleus collisions at high energy by using a multi-source thermal model,where the contribution of source interactions is *** calculated results are approximately in agrcement with the experimental data over a wider PT range from the PHENIX and ALICE *** is found that the expansion factor increases linearly with the impact parameter from most central (0-5%) to mid-peripheral (35-40%) collisions.

关键词： momentum linearly Collisions

高能核-核碰撞中粒子的(赝)快度分布与重叠柱模型(英文)

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高能物理与核物理 2005年第5期29卷 461-466页

作者：宋福刘福虎山西师范大学现代物理研究所临汾041004

应用重叠柱模型描述了高能核-核碰撞中带电粒子的快度(或赝快度)分布.对目前加速器上的固定靶实验而言,观察到了相同相对强度的纵向流,两个完全重叠的热化柱能够描述实验数据.在更高能量范围(4ATeV以上),观察到了更强的纵向流,这时需要... 详细信息

应用重叠柱模型描述了高能核-核碰撞中带电粒子的快度(或赝快度)分布.对目前加速器上的固定靶实验而言,观察到了相同相对强度的纵向流,两个完全重叠的热化柱能够描述实验数据.在更高能量范围(4ATeV以上),观察到了更强的纵向流,这时需要两个部分重叠的热化柱来描述实验数据.用重叠柱模型计算得到的(赝)快度分布与1AGeV到100ATeV能区的实验结果符合.

关键词：重叠柱模型快度分布核-核碰撞加速器热化柱

AGS和RHIC能区核-核碰撞中的领头粒子效应与双柱模型

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高能物理与核物理 2006年第7期30卷 638-641页

作者：刘福虎山西大学物理电子工程学院太原030006

在总结双柱模型计算结果的基础上,用该模型对交变梯度同步加速器(AGS)和相对论性重离子对撞机(RHIC)能区核-核碰撞中的领头粒子效应进行了统一分析．结果表明:在AGS和RHIC能区,不同中心性核-核碰撞中带电粒子(赝)快度分布的不同,主要由... 详细信息

在总结双柱模型计算结果的基础上,用该模型对交变梯度同步加速器(AGS)和相对论性重离子对撞机(RHIC)能区核-核碰撞中的领头粒子效应进行了统一分析．结果表明:在AGS和RHIC能区,不同中心性核-核碰撞中带电粒子(赝)快度分布的不同,主要由领头粒子的贡献影响;如果扣除领头粒子的贡献,不同中心性核-核碰撞中带电粒子的(赝)快度分布有相同的形状．

关键词： AGS和RHIC能区核-核碰撞领头粒子效应双柱模型

Pseudorapidity Distributions of Charged Particles and Contributions of Leading Nucleons in Cu-Cu Collisions at High Energies

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Chinese Physics Letters 2010年第3期27卷 108-111页

作者：孙建新刘福虎王二琴 Institute of Theoretical Physics Shanxi University Taiyuan 030006 School of Engineering Shanxi Datong University Datong 037003

The pseudorapidity distributions of charged particles produced in Cu-Cu collisions over an energy range from 22.4 GeV to 200 GeV are investigated by using a multi-source ideal gas model which contains systematically the contributions of leading nucleons. It is shown that the calculated results are in agreement with the experimental data and the model is successful in the description of the pseudorapidity distribution of charged particles. The contributions of leading nucleons increase with the increasing impact parameter. The cylinder length （the longitudinal shift of the interacting system） in rapidity space increases with the increasing energy and does not depend on centrality at a given energy.

关键词： Nuclear physics

Correlations Between the Conditional Moments in ^(16)O and ^(32)S Fragmentation at High Energy

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Chinese journal of nuclear physics 1995年第1期17卷 13-16页

作者： liu fu-hu (Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100039)Sun Han-cheng (China Institute of Atomic Energy,B.O.Box 275(94),Beijing 102413) Institute of High Energy Physics Chinese Academy of Sciences Beijing 100039 asteur.fr

The conditional moments of the charge distributions of the projectile frag-ments in 16O and 32S fragmentation behaviour are obtained by using a partition *** logarithmic correlations between the conditional moments are observed,Thecalculated results are in agreement with the experimental data of 3.7 and 200GeV N 16O-emulsion and 200 GeV/N 32S-emulsion interactions.

关键词： Projectile fragment Charge distribution Conditional moment Logarithmic correlation

Properties and characterization of Au^(3+)-adsorption by mycelial waste of Streptomyces aureofaciences

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Chinese Science Bulletin 2001年第20期46卷 1709-1712页

作者： liu Yueying, fu Jinkun, hu Hongbo, TANG Dingliang, Nl Zimian & YU Xinsheng1. Department of Biology, 2. State Key Laboratory for Physical Chemistry of Solid Surface, 3. Center for Analysis & Testing, Xiamen University, Xiamen 361005, China Department of Biology Xiamen University Xiamen China State Key Laboratory for Physical Chemistry of Solid Surface Xiamen University Xiamen China Center for Analysis & Testing Xiamen University Xiamen China

Mycelial waste of Streptomyces aureofaciences procured from the aureomycin fermentation industry is used as biosorbent for Au3+. The properties of Au3+ adsorption by the mycelial waste are studied. The results indicate that the optimum pH value of Au3+ adsorption is 3.5. The biosorption is a rapid and non-temperature-dependent process. The bio-sorptive capacity with 45.6 mg/g and efficiency with 91.2% are achieved under the conditions of pH 3.5 and 30℃ for 45 min, in which the ratio is 50 mg/g dry weight for the concentrations of initial Au3+ and the mycelial waste. The Au3+ ions adsorbed on the mycelial waste can be eluted. The observation in a transmission electron microscope shows that the Au3+ ions can be reduced to Au particles by the mycelial waste and the Au can become gold crystals with differentforms and sizes. X-ray photoelectron spectroscopy analysis further proves that the Au3+ can be reduced to Au0 by the mycelial waste.

关键词： Streptomyces aureofaciences mycelial waste gold bio-sorption gold crystal characterization.

Unraveling brain aging through the lens of oral microbiota

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Neural Regeneration Research 2025年第7期20卷 1930-1943页

作者： Qinchao hu Si Wang Weiqi Zhang Jing Qu Guang-hui liu State Key Laboratory of Membrane Biology Institute of ZoologyChinese Academy of SciencesBeijingChina Hospital of Stomatology Guanghua School of StomatologyGuangdong Provincial Key Laboratory of StomatologySun Yat-sen UniversityGuangzhouGuangdong ProvinceChina Advanced Innovation Center for human Brain Protection and National Clinical Research Center for Geriatric Disorders Xuanwu HospitalCapital Medical UniversityBeijingChina Aging Translational Medicine Center International Center for Aging and CancerBeijing Municipal Geriatric Medical Research CenterXuanwu HospitalCapital Medical UniversityBeijingChina CAS Key Laboratory of Genomic and Precision Medicine Beijing Institute of GenomicsChinese Academy of Sciences and China National Center for BioinformationBeijingChina University of Chinese Academy of Sciences BeijingChina Institute for Stem Cell and Regeneration Chinese Academy of SciencesBeijingChina Aging Biomarker Consortium BeijingChina State Key Laboratory of Stem Cell and Reproductive Biology Institute of ZoologyChinese Academy of SciencesBeijingChina Beijing Institute for Stem Cell and Regenerative Medicine BeijingChina

The oral cavity is a complex physiological community encompassing a wide range of *** of oral microbiota can lead to various oral infectious diseases,such as periodontitis and tooth decay,and even affect systemic health,including brain aging and neurodegenerative *** studies have highlighted how oral microbes might be involved in brain aging and neurodegeneration,indicating potential avenues for intervention *** this review,we summarize clinical evidence demonstrating a link between oral microbes/oral infectious diseases and brain aging/neurodegenerative diseases,and dissect potential mechanisms by which oral microbes contribute to brain aging and *** also highlight advances in therapeutic development grounded in the realm of oral microbes,with the goal of advancing brain health and promoting healthy aging.

关键词： Alzheimer's disease brain aging multiple sclerosis neurodegeneration neurodegenerative diseases oral microbiota Parkinson's disease periodontitis bacteria Porphyromonas gingivalis

Deep eutectic solvents for separation and purification applications in critical metal metallurgy:Recent advances and perspectives

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 1-19页

作者： Shuo Chen Shengpeng Su Yanfang huang Bingbing liu hu Sun Shuzhen Yang Guihong Han School of Chemical Engineering Zhengzhou UniversityZhengzhou 450001China Zhongyuan Critical Metals Laboratory Henan ProvinceZhengzhou 450001China

Solvent extraction,a separation and purification technology,is crucial in critical metal *** solvents commonly used in solvent extraction exhibit disadvantages,such as high volatility,high toxicity,and flammability,causing a spectrum of hazards to human health and environmental *** solvents have been recognized as potential alternatives to these harmful organic *** the past two decades,several neoteric solvents have been proposed,including ionic liquids(ILs)and deep eutectic solvents(DESs).DESs have gradually become the focus of green solvents owing to several advantages,namely,low toxicity,degradability,and low *** this critical review,their classification,formation mechanisms,preparation methods,characterization technologies,and special physicochemical properties based on the most recent advancements in research have been systematically ***,the major separation and purification applications of DESs in critical metal metallurgy were comprehensively ***,future opportunities and challenges of DESs were explored in the current research *** conclusion,this review provides valuable insights for improving our overall understanding of DESs,and it holds important potential for expanding separation and purification applications in critical metal metallurgy.

关键词： deep eutectic solvents preparations properties separation and purification critical metal metallurgy