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The effect of symmetry potential on the balance energy of light particles emitted from mass symmetric heavy-ion collisions with isotopes,isobars and isotones

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Science China(Physics,Mechanics & Astronomy) 2012年第12期55卷 2407-2413页

作者： WANG YongJia GUO ChenChen LI QingFeng ZHANG HongFei School of Science Huzhou Teachers CollegeHuzhou 513000China School of Nuclear Science and Technology Lanzhou University Lanzhou 730000China College of Nuclear Science and Technology Beijing Normal UniversityBeijing 100875China

Using the Ultrarelativistic Quantum Molecular Dynamics(UrQMD) model,the balance energies of free neutrons,free protons and Z=1 particles(including free protons,deuterons and tritons) from mass symmetric heavy-ion collisions with isotopes,isobars and isotones are *** influence of nuclear symmetry potential energy on the balance energy is *** is found that the balance energy of free neutrons is sensitive to the nuclear symmetry energy,while that of free protons is ***,the initial neutron/proton ratio dependence of the balance energy of free neutrons from Sn isotopes can be taken as a useful probe to constrain the stiffness of the nuclear symmetry energy.

关键词： symmetry energy directed flow balance energy

Two New Species of Fire-Bellied Newts (Caudata, Salamandridae, Cynops) from Southeastern China

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Asian Herpetological Research 2023年第1期14卷 41-53,I0003页

作者： Zhitong LYU Shuo QI Siyu ZHANG Keyuan DAI Yingyong WANG State Key Laboratory of Biocontrol/The Museum of Biology School of Life Sciences/School of EcologySun Yat-sen UniversityGuangzhou 510275GuangdongChina Guangdong Shimentai National Nature Reserve Qingyuan 513000GuangdongChina

The fire-bellied newt genus Cynops contains ten known species distributed in China and Japan in East *** this work,two new Cynops species are described,namely Cynops jiaoren *** in northern Guangdong and Cynops maguae *** in eastern *** two new species can be distinctly distinguished from their congeners by the independent phylogenetic placements and a combination of morphological *** discovery of these two new species in the Southeast Chinese Hilly Area,where half of congeners occur,increases the known diversity of Cynops,and indicates unresolved relationships among the species in southeastern *** discussions on the taxonomic status of Cynops cyanurus are also provided.

关键词： Cynops jiaoren sp.nov. Cynops maguae sp.nov. Cynops yunnanensis comb.nov. Southeast Chinese Hilly Area taxonomy

A Study of the Jet System of the Recovery Concerning Waste Heat of Steam Condensate

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Journal of Systems Engineering and Electronics 1994年第4期5卷 71-77页

作者： Quo Jinji, Xing Haoxu & Ye MoupingDept. of Applied Mechanics & Eng., Zhongshan University, Guangzhou 510275, ChinaZhang Kangzhi, Wang Guojin & Chen MinjianYinglong Cement Plant, Guangdong, 513000, China Dept. of Applied Mechanics & Eng. Zhongshan University Guangzhou 510275 China Yinglong Cement Plant Guangdong 513000 China

This paper presents a frame figure of the recovery system concerning waste heat of steam condensate. When steam phase changes into liquid state in the condenser, the heat equilibium equation, gas state equation, mass flow calculating equation of the jet steam and incondensable gas equation are established. The coupling function between condensate unit and recovery pump of the hot condensate with ejector is studied. The paper sets up the fluid continuity equation, heat equilibium equation and efficiency equation of the ejector and points out the technical key how the prevent hot condensate change into steam phase. When fluid passes from circulation loop through pump to export, the energy equations are obtained here. At last, signal figure of the applied examples are given and settle the techanical questions of the jet system are discussed.

关键词： Steam condensate Heat equilibium equation Recovery heat Jet system

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高考新热点:无机化工题

中学化学教学参考 2007年第9期 57-58页

作者：周燕平英德中学广东英德513000

随着新课程改革的进行，在高考化学试题中无机化工题逐渐成为一类热门的主流题型。无机化工题将高中化学与某些无机化工生产很好地融合在一起，题目情景新颖、综合性强、思维量大，很多学生在做这类题目时往往无从下手。下面就无机化工... 详细信息

随着新课程改革的进行，在高考化学试题中无机化工题逐渐成为一类热门的主流题型。无机化工题将高中化学与某些无机化工生产很好地融合在一起，题目情景新颖、综合性强、思维量大，很多学生在做这类题目时往往无从下手。下面就无机化工题的特点和解题策略及教学建议谈谈我的一些看法。

关键词：高考化学试题无机化工新课程改革化工生产高中化学教学建议解题策略思维

Recent advancements in hydrometallurgical recycling technologies of spent lithium-ion battery cathode materials

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Rare Metals 2024年第3期43卷 879-899页

作者： Juan Wu Li Xiao Li Shen Jian-Jun Ran Hui Zhong Yi-Rong Zhu Han Chen College of Materials and Advanced Manufacturing Hunan University of TechnologyZhuzhou412007China School of Resources Processing and Bioengineering Central South UniversityChangsha410083China Guangdong JiaNa Energy Technology Company Qingyuan513000China

The rapidly increasing production of lithium-ion batteries(LIBs)and their limited service time increases the number of spent LIBs,eventually causing serious environmental issues and resource *** the perspectives of clean production and the development of the LIB industry,the effective recovery and recycling of spent LIBs require urgent *** study provides an overview of the current hydrometallurgical processes employed in the recycling of spent cathode materials,focusing on the leaching of valuable metals and their *** particular,this research reviews the various leaching systems(inorganic acid,organic acid,and ammonia)and the separation of valuable metals,and then,recommendations for subsequent study are offered in an attempt to contribute to the development of highly efficient methods for recycling spent cathode *** addition,a range of existing technologies,such as solvent extraction,chemical precipitation,electrochemical deposition,and regeneration,for the postprocessing of leaching solutions are ***,the promising technologies,existing challenges and suggestions with respect to the development of effective and environmentally friendly recycling methods for handling spent cathode materials are identified.

关键词： Spent lithium-ion batteries(LIBs) Cathode material Hydrometallurgy Leaching Recycling

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帆船是如何逆风行驶的？

物理教学 2002年第5期24卷 47-48页

作者：何腾辉英德师范学院广东513000

非水四乙基氯化铵体系中电溶解耦合铪醇盐合成的电化学机理与动力学

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Transactions of Nonferrous Metals Society of China 2024年第5期34卷 1681-1693页

作者：李帅杨声海陈永明唐朝波赖延清邓朝勇王长红中南大学冶金与环境学院长沙410083 稀美资源(广东)有限公司清远513000

作为一种具有广泛应用前景的高效电合成技术,耦合电溶解的铪醇盐合成(EHS)基于铪溶解/乙醇脱氢的同时非均相反应以及溶液中Hf^(4+)阳离子和烷氧阴离子的自发结合反应。为了阐明EHS过程的机制和动力学,通过电化学测试、扫描电镜、气相色... 详细信息

作为一种具有广泛应用前景的高效电合成技术,耦合电溶解的铪醇盐合成(EHS)基于铪溶解/乙醇脱氢的同时非均相反应以及溶液中Hf^(4+)阳离子和烷氧阴离子的自发结合反应。为了阐明EHS过程的机制和动力学,通过电化学测试、扫描电镜、气相色谱和微观动力学模拟等手段,探究阳极铪溶解和阴极乙醇脱氢的电化学行为。结果表明,优选的支持电解质四乙基氯化铵(Et_(4)NCl)展现了钝化膜击穿与铪溶解协同的剧烈点蚀机制以及两段脱氢机制。为量化钝化膜击穿和铪点蚀的动力学参数,提取与钝化速率、钝化膜击穿敏感性和点蚀速率相关的3个指标,并通过建立微观动力学模型评估基于Et_(4)NCl体系的EHS工艺,其电能消耗为1.53~1.83 k W·h/kg Hf(OC_(2)H_(5))_(4)。

关键词：铪醇盐合成四乙基氯化铵铪溶解乙醇脱氢电化学机理电化学阻抗谱微动力学模拟