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Hierarchically 3D structured milled lamellar MoS2/nano-silicon@carbon hybrid with medium capacity and long cycling sustainability as anodes for lithium-ion batteries

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Journal of Materials Science & Technology 2019年第9期35卷 1840-1850页

作者： Peng Zhang qiang rua Honglin Yan Xianhua Hou Fuming Chen Shejun Hu Lingzhi Zhao Guangdong Engineering Technology Research Center o f Efficient Green Energy and Environmental Protection Materials South China Normal University Guangzhou 510006China Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials School of Physics and Telecommunication EngineeringSouth China Normal UniversityGuangzhou 510006China Engineering Research Center of Materials and Technology for Electrochemical Energy Storage (Ministry of Education) Guangzhou 510006China Institute of Optoelectronic Materials and Technology South China Normal UniversityGuangzhou 510631China

A hierarchically 3D structured milled lamellar MoS2/nano-siIicon@carbon hybrid with medium capacity and long-term lifespan is designed by a green and scalable approach using ball milling process and spraydrying/ pyrolysis routes. The microspheres consist of low-content nano-silicon (20 wt%), milled lamellar M0S2 sheets and porous carbon skeletons. A mixture of silicon nanoparticles and M0S2 flakes serves as an inner core, while porous carbon pyrolyzed from petroleum pitch acts as a protective shell. The particular architecture affords robust mechanical support, abundant buffering space and enhanced electrical conductivity, thus effectively accommodating drastic volume variation during repetitive Li+ intercalation/ extraction. The Si/MoS2@C hybrid delivers a high initial discharge specific capacity of 1257.8 mA hg^-1 and exhibits a reversible capacity of 767.52 m A hg^-1 at a current density 100 mA g'1 after 250 cycles. Most impressively, the electrode depicts a superior long-cycling durability with a discharge capacity of 537.6 mA hg^-1 even after 1200 cycles at a current density of 500 m A g^-1. Meanwhile, the hybrid also shows excellent rate performance such as 388.1 mA h g^-1 even at a large current density of 3000 mA g^-1.

关键词： Si MoS2 Medium capacity Long-term lifespan Lithium ion batteries

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汽车座椅体压分布变化规律和调节策略

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机械设计与研究 2023年第3期39卷 185-192页

作者：彭强袁欢郭巍周蒙蒙阮金伟武汉理工大学汽车工程学院武汉430070 武汉理工大学现代汽车零部件技术湖北省重点实验室武汉430070 武汉理工大学汽车零部件技术湖北省协同创新中心武汉430070

汽车座椅的舒适性和智能化广受消费者关注,为给座椅的舒适性和智能化设计提供理论指导,研究了汽车座椅调节对体压分布影响规律并基于体压变化规律提出了一种改善舒适性的座椅调节策略。以座椅调节参数为因子,以人体与座椅接触面的压力... 详细信息

汽车座椅的舒适性和智能化广受消费者关注,为给座椅的舒适性和智能化设计提供理论指导,研究了汽车座椅调节对体压分布影响规律并基于体压变化规律提出了一种改善舒适性的座椅调节策略。以座椅调节参数为因子,以人体与座椅接触面的压力特征参数为观测变量,设计了正交实验。利用方差分析——同时主成分分析方法(ANOVA-simultaneous component analysis,ASCA)对正交试验数据进行分析,得到了座椅调节对体压分布的影响规律。基于分析结果提出并验证了一种改善乘坐舒适性的座椅调节策略。研究发现:(1)座椅调节对体压分布有显著影响,其中靠背角度和滑轨位置相比座椅高度影响更大;(2)当靠背角度向后移动时,靠背压力变大且向四周移动,臀部压力变小;随着滑轨位置向后变化,座垫上的压力中心向臀部向腿部移动;(3)基于体压变化规律和理想体压分布提出的舒适性调节策略相比其他调节策略改善舒适性的效果更显著。

关键词：体压分布汽车座椅智能座舱 ASCA 舒适性

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黄龙与黄石钙华微生物沉积作用比较研究

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中国岩溶 2021年第2期40卷 264-272页

作者：董发勤代群威饶瀚云王富东赵学钦蒋忠诚张强李博文 Alexander IMalov Enrico Capezzuoli Augusto Auler 西南科技大学固体废物处理与资源化教育部重点实验室四川绵阳621010 西南科技大学环境与资源学院四川绵阳621010 西南科技大学生命科学与工程学院四川绵阳621010 中国地质科学院岩溶地质研究所广西桂林541000 Department of Materials Science and Engineering Michigan Technological UniversityHoughton 49931MI USA Federal Center for Integrated Arctic Research RAS 23 Severnoy Dviny Emb.Arkhangelsk163061Russia Department of Earth Sciences University of FlorenceFirenze 50121Italy Instituto do Carste Rua Barcelona 240/302Belo HorizonteMG30360-260Brazil

本文通过调查黄龙风景区水体的环境地质特征与微生物群落结构及多样性,并与黄石公园对比分析,探讨了两种特殊地理环境下的微生物群落结构和多样性及其对钙华沉积的影响。结果表明:黄龙沟泉水属于地下冷泉,且景区内覆盖着大量植被,水体... 详细信息

本文通过调查黄龙风景区水体的环境地质特征与微生物群落结构及多样性,并与黄石公园对比分析,探讨了两种特殊地理环境下的微生物群落结构和多样性及其对钙华沉积的影响。结果表明:黄龙沟泉水属于地下冷泉,且景区内覆盖着大量植被,水体中有大量藻类和细菌;黄石公园猛犸象温泉区泉水属于地下热泉,植被覆盖率很低,泉水中微生物多为嗜热菌,藻类较少。黄龙与黄石钙华主要由方解石组成并且微生物参与了钙华的形成过程。微生物对钙华沉积的作用,主要分为模板作用、产物诱导作用和代谢调控作用,对比探讨了特殊地质环境下的微生物对钙华沉积的贡献,指出微生物沉积作用在钙华沉积过程中的重要性,可为黄龙钙华"黑化"防治提供理论依据。

关键词：钙华微生物黄龙自然风景区黄石国家公园

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Notes,outline and divergence times of Basidiomycota

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Fungal Diversity 2019年第6期99卷 105-367页

作者： Mao-qiang He Rui-Lin Zhao Kevin D.Hyde Dominik Begerow Martin Kemler Andrey Yurkov Eric H.C.McKenzie Olivier Raspe Makoto Kakishima Santiago Sanchez-Ramırez Else C.Vellinga Roy Halling Viktor Papp Ivan V.Zmitrovich Bart Buyck Damien Ertz Nalin N.Wijayawardene Bao-Kai Cui Nathan Schoutteten Xin-Zhan Liu Tai-Hui Li Yi-Jian Yao Xin-Yu Zhu An-Qi Liu Guo-Jie Li Ming-Zhe Zhang Zhi-Lin Ling Bin Cao Vladimir Antonin Teun Boekhout Bianca Denise Barbosa da Silva Eske De Crop Cony Decock Balint Dima Arun Kumar Dutta Jack W.Fell Jozsef Geml Masoomeh Ghobad-Nejhad Admir J.Giachini Tatiana B.Gibertoni Sergio P.Gorjon Danny Haelewaters Shuang-Hui He Brendan P.Hodkinson Egon Horak Tamotsu Hoshino Alfredo Justo Young Woon Lim Nelson Menolli Jr Armin Mesic Jean-Marc Moncalvo Gregory M.Mueller La szlo G.Nagy RHenrik Nilsson Machiel Noordeloos Jorinde Nuytinck Takamichi Orihara Cheewangkoon Ratchadawan Mario Rajchenberg Alexandre G.S.Silva-Filho Marcelo Aloisio Sulzbacher Zdenko Tkalcec Ricardo Valenzuela Annemieke Verbeken Alfredo Vizzini Felipe Wartchow Tie-Zheng Wei Michael WeiB Chang-Lin Zhao Paul M.Kirk State Key Laboratory of Mycology Institute of MicrobiologyChinese Academy of SciencesBeijing 100101People’s Republic of China Department of Entomology and Plant Pathology Faculty of AgricultureChiang Mai UniversityChiang Mai 50200Thailand Center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai 57100Thailand College of Life Sciences University of Chinese Academy of SciencesHuairou DistrictBeijing 100408People’s Republic of China Ruhr-Universitat Bochum AG GeobotanikND03UniversitatsstraBe 15044801 BochumGermany Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures InhoffenstraBe 7B38124 BrunswickGermany Manaaki Whenua-Landcare Research Private Bag 92170AucklandNew Zealand Research Department Meise Botanic GardenNieuwelaan 381860 MeiseBelgium Service General de l'Enseignement superieur et de la Recherche scientifique Federation Wallonie-BruxellesLavallee 11080 BrusselsBelgium University of Tsukuba TsukubaIbaraki 305-8572Japan Department of Ecology and Evolutionary Biology University of Toronto25 Willcocks St.TorontoON M5S 3B2Canada Berkeley USA Institute of Systematic Botany The New York Botanical GardenBronxNY 10458-5126USA Department of Botany Szent Istvan University1518 BudapestHungary Komarov Botanical Institute Russian Academy of SciencesProfessor Popov st.2Saint PetersburgRussia 197376 Institut pour Systematique Ecologie Biodiversite(ISYEB UMR 7205) Sorbonne universiteMuseum National d’Histoire Naturelle CP 39CNRSDepartement Origines et Evolution12 Rue Buffon75005 ParisFrance Institute of Microbiology Beijing Forestry UniversityBeijing 100083People’s Republic of China Department of Biology Research Group MycologyGhent UniversityK.L.Ledeganckstraat 359000 GhentBelgium State Key Laboratory of Applied Microbiology Southern China Guangdong Provincial Key Laboratory of Microbial Culture Collection and ApplicationGuangdong Institute of MicrobiologyGuangzhou 510070People’s Republic of China Department of Botany Moravian Mu

The Basidiomycota constitutes a major phylum of the kingdom Fungi and is second in species numbers to the Ascomycota.The present work provides an overview of all validly published,currently used basidiomycete genera to date in a single document.An outline of all genera of Basidiomycota is provided,which includes 1928 currently used genera names,with 1263 synonyms,which are distributed in 241 families,68 orders,18 classes and four subphyla.We provide brief notes for each accepted genus including information on classification,number of accepted species,type species,life mode,habitat,distribution,and sequence information.Furthermore,three phylogenetic analyses with combined LSU,SSU,5.8s,rpb1,rpb2,and ef1 datasets for the subphyla Agaricomycotina,Pucciniomycotina and Ustilaginomycotina are conducted,respectively.Divergence time estimates are provided to the family level with 632 species from 62 orders,168 families and 605 genera.Our study indicates that the divergence times of the subphyla in Basidiomycota are 406-430 Mya,classes are 211-383 Mya,and orders are 99-323 Mya,which are largely consistent with previous studies.In this study,all phylogenetically supported families were dated,with the families of Agaricomycotina diverging from 27-178 Mya,Pucciniomycotina from 85-222 Mya,and Ustilaginomycotina from 79-177 Mya.Divergence times as additional criterion in ranking provide additional evidence to resolve taxonomic problems in the Basidiomycota taxonomic system,and also provide a better understanding of their phylogeny and evolution.

关键词： Classification Molecular clock Fungi Systematics Taxonomy

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Experimental study of the elastic scattering of 10Be on 208Pb at the energy of around three times the Coulomb barrier

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Chinese Physics C 2020年第2期44卷 72-79页

作者：段芳芳杨彦云庞丹阳胡碧涛王建松王康杨过 Valdir Guimar?es 马朋许世伟刘星泉马军兵白真胡强金树亚孙欣欣姚佳盛齐航凯孙志宇 School of Nuclear Science and Technology Lanzhou University Institute of Modern Physics Chinese Academy of Sciences School of Nuclear Science and Technology University of Chinese Academy of Sciences School of Physics and Nuclear Energy Engineering Beihang University School of Science Huzhou University Instituto de Física Universidade de S?n Paulo Key Laboratory of Radiation Physics and Technology of the Ministry of Education Institute of Nuclear Science and TechnologySichuan University

Elastic scattering of 10Be on a 208Pb target was measured at ELab=127 MeV,which corresponds to three times the Coulomb barrier.The secondary 10Be beam was produced at the Radioactive Ion Beam Line in Lanzhou of the Heavy-Ion Research Facility in Lanzhou.The angular distribution of elastic scattering in the 10 Be+208Pb system shows a typical Fresnel diffraction peak.Optical model analysis of the angular distribution was performed using the Woods-Saxon,double-folding and global potentials.With the global potential,different density distributions were used.The results indicate that different density distributions for the projectile induce distinct effects in the angular distribution.

关键词： elastic scattering radioactive ion beam angular distribution optical model density distribution

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