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Progress in Natural Science:Materials International 2008年第4期18卷 421-429页

作者： xi chen, da li,{2., shao-yong jiang state key Laboratory for Mineral deposit research, department of earth sciences, nanjing university,{12., china state key Laboratory for Mineral {2. research Department of Earth Sciences Nanjing University Nanjing 210093 China

Isotopic compositions of Mn-carbonate and organic carbon from the same individual samples and sulfur isotopic compositions of pyrites in the basal datangpo Formation were analyzed. Highly 34S-enriched pyrites (d34Spyrite=31.7-59.4‰) were precipitated in rel- atively occlusive pore water under anoxic condition in sediments, which is consistent with the observation of large and scattered pyrite framboids. The sulfidic deep ocean was not "oxidized" in the early datangpo interglacial interval, thus the level of seawater sulfate remained low and marine d34Ssulphate remained high. Low d13Ccar (average 7.4‰) and abnormal relationship between d13Ccar and frac-tionation (Dcar-org) imply that the negative d13Ccar excursion may have resulted from oxidation of part of a large organic carbon reser-voir. High Dcar-org (average 2..1‰) implicates high CO2.level in the atmosphere. Small standard deviation (1.0‰) of d13Ccar values indicates the Mn-carbonate was precipitated near the water-sediment interface under dysoxic conditions rather than in occlusive pore water in sediments.

关键词： Cisotope S isotope Paleoenvironment datangpo Mn-carbonate

Insights into the provenance implication of leaf wax n-alkanes along the lower Yellow River

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Science china earth {2. 2024年第6期67卷 2001-2018页

作者： liang ZHANG Jinzhao liU C{2. jiang fei ZHANG Zhisheng AN School of Human Settlements and Civil Engineering Xi’an Jiaotong UniversityXi’an 710054China state key Laboratory of Loess and Quaternary Geology Institute of Earth EnvironmentChinese Academy of SciencesXi’an 710061China National Observation and research Station of earth Critical Zone on the Loess Plateau of Shaan{2. Xi’an 710061China

Serving as one of the largest rivers in terms of both sediment and organic carbon transport fluxes in the world,the Yellow River plays a crucial role in regional biogeochemical process as well as in the global carbon ***,although a large number of studies have been carried out on the flux,composition,source and seasonal variation of total particulate organic carbon in the Yellow River so far,studies on molecular biomarkers at different spatial and temporal scales are still *** this study,we focus on the molecular and hydrogen isotopic properties of leaf wax n-alkanes among different types of samples which obtained from different seasons(flood ***-flood)along the lower Yellow *** molecular distribution of n-alkanes show that the riparian topsoils are subject to inputs from the overlying vegetation,while the suspended sediments from the flood season are characterized by the mixing of soil materials which originate from various stratigraphy with different ages on the Chinese Loess *** to the contrasting hydrodynamic conditions,the n-alkanes in suspended sediments also show distinct molecular composition between flood and non-flood ***,considering the effect of climatic factors,the proportion of monocots in flood-season suspended sediments is calculated from a semi-quantitative perspective using δ^(2.H_(wax).Our findings may bring to light new considerations for the interpretation of leaf wax proxies in studies of organic matter sources of Yellow River.

关键词： Molecular distribution Hydrogen isotopic composition Leaf wax n-alkanes Suspended sediments Lower Yellow River

In-situ analysis and genetic investigation of li-bearing minerals in McDermitt clay-type lithium {2.,Nevada,USA

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Acta Geochimica 2024年第3期43卷 478-488页

作者： Yi Cui Hanjie Wen Zhengbing Zhou Kunyue ling lin Xu Shirong liu fei Xu School of earth sciences East China University of TechnologyNanchang 330013China state key Laboratory of Nuclear Resources and Environment East China University of TechnologyNanchang 330013China School of earth sciences and Resources Chang’an UniversityXi’an 710054China College of earth and Planetary sciences University of Chinese Academy of SciencesBeijing 100049China state key Laboratory of Ore {2. Geochemistry Institute of GeochemistryChinese Academy of SciencesGuiyang 550081China state key Laboratory of Environmental Geochemistry Institute of GeochemistryChinese Academy of SciencesGuiyang 550081China

Clay-type li deposits are poised to play a pivotal role in addressing the surging global demand for *** McDermitt clay-type li deposit,located in Nevada,is the largest li deposit in the United states,with li hosted by a clay-rich sequence of smectite-dominated intervals and illite-dominated intervals,***,the occurrence of li and the genesis of li-bearing minerals within smectite-dominated intervals have not been thoroughly investigated in previous ***,we studied the mineralogy,the in-situ li distribution,and the bonding environments of li within the smectite intervals using a combination of instru-mental techniques including scanning electron microscope,transmission electron microscope,time-of-flight secondary ion mass spectrometry,and nuclear magnetic *** results indicate that the smectite exhibits low crystallinity characteristics of lacustrine clay authigenesis and is com-monly found tofill the interstices among volcanic minerals or envelop them;li is mainly hosted by Mg-smectite rather than the volcanic *** the tuffaceous sediment samples,the volcanic glass has undergone a transformation,resulting in its complete disappearance and alteration into clay *** to the octahedral sites of Mg-smectite bounded in li,it is referred to be *** interpret that the hectorite’s precipitation occurs in a high saline-alkaline water environment,a result of McDermitt *** conclusion can be supported by the coexistence of spherulitic calcite and ***,this study confirms hectorite as the main li-bearing mineral and increases the understanding of the genetic model of hectorite formation in intracontinental caldera basins.

关键词： McDermitt caldera lithium occurrence Tuffaceous sediments Mineralogy Hectorite neoformation

Frontiers in high entropy alloys and high entropy functional materials

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Rare Metals 2024年第10期43卷 4639-4776页

作者： Wen-Tao Zhang Wen Huang Fu-Jie Yu Qi Zhao xin-Dong Zhu Tao Feng Yao jiang xiao-Ming li Xue-fei Miao He Zhu Si Lan Xue-Qian Wang Bao-Long Shen Zhe Jia Feng-Qi Zhang Wei Wang Qi liu Yang Ren Xun-li Wang xiao-Ya Cui xiao-Yang Wang Ya-Nan chen Bing-Bing Fan Meng-Ru li Qi-Long Gao Jia-Ming Guo Zeng-Bao Jiao Zhi-Min Guo Yu-Ping Zhao Qian Yu Rui Huang ling-Kun Zhang Yi-Ping Lu Xu-Bo li Huai-Jun lin Yan Ma Wei-Ming Yang Zhi-Hua Shen Hai-Yan He yong-Gang Sun yong-jiang Huang De-Zhuang Wang Qing-Feng liu fei-Yang Wang Hui liu hong-Hui Wu li-Qiang Wang Yang Lu Nan Wang Tian-li Wang Wei-Bing liao Yi-Han Wang Yuan Wu Yu-Zhen Yin Jie Pan Yi Zhang Qing Wang Jian-Yang Zhang Tao Yang Yasir Sohail Jin-Yu Zhang Hua Ji Qiang li Wei-Di liu Zhi-Gang chen xiong-Jun liu Wen Ma liang Mao Zhen-Duo Wu School of Materials Science and Engineering Nanjing University of Science and Technology jiangsu key Laboratory for Advanced Metal{2.c Materials School of Materials Science and Engineering Southeast University department of Physics City University of Hong Kong School of Materials Science and Engineering Tianjin University School of Physics and Microelectronics Zhengzhou University department of Mechanical Engineering Research Institute for Advanced Manufacturing The Hong Kong Polytechnic University Center of Electron Microscopy and state key Laboratory of Si{2.con Materials School of Materials Science and Engineering Zhejiang University key Laboratory of Solidification Control and Digital Preparation Technology (liaoning Province) School of Materials Science and Engineering Dalian University of Technology Institute of Advanced Wear & Corrosion Resistance and Functional Materials Jinan University School of Mechanics and Civil Engineering China University of Mining and Technology School of Physical sciences Great Bay University School of Materials Science andEngineering Harbin Institute of Technology state key Laboratory of Materials-Oriented Chemical Engineering College of Chemical Engineering Nanjing Tech University Beijing Advanced Innovation Center for Materials Genome Engineering Research Institute for Carbon Neutrality University of Science and Technology Beijing department of Mechanical Engineering The University of Hong Kong School of Computing Macquarie University key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic Engineering Shenzhen University state key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing state key Laboratory of Materials Processing and Die & Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology Institute of materials Shanghai University department of Materials Science and Engineering C

Owing to their exceptional properties, high-entropy alloys(HEAs) and high-entropy materials have emerged as promising research areas and shown diverse applications. Here,the recent advances in the field are comprehensively reviewed,organized into five sections. The first section introduces the background of HEAs, covering their definition, significance,application prospects, basic properties, design principles, and microstructure. The subsequent section focuses on cutting-edge high-entropy structural materials, highlighting developments such as nanostructured alloys, grain boundary engineering,eutectic systems, cryogenic alloys, thin films, micro-nano-lattice structures, additive manufacturing, high entropy metallic glasses, nano-precipitate strengthened alloys, composition modulation, alloy fibers, and refractory systems. In the following section, the emphasis shifts to functional materials, exploring HEAs as catalysts, magneto-caloric materials, corrosion-resistant alloys, radiation-resistant alloys, hydrogen storage systems, and materials for biomedicine. Additionally, the review encompasses functional high-entropy materials outside the realm of alloys, including thermoelectric, quantum dots, nanooxide catalysts, energy storage materials, negative thermal expansion ceramics,and high-entropy wave absorption materials. The paper concludes with an outlook, discussing future directions and potential growth areas in the field. Through this comprehensive review,researchers, engineers, and scientists may gain valuable insights into the recent progress and opportunities for further exploration in the exciting domains of high-entropy alloys and functional materials.

关键词： Cutting-edge structural materials Cutting-edgefunctional materials High entropy alloys

PDGFA-associated protein 1 is a novel target of c-Myc and contributes to colorectal cancer initiation and progression

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Cancer Communications 2022年第8期42卷 750-767页

作者： hong-yong Cui Wei Wei Mei-Rui Qian Ruo-{2. Tian xin Fu hong-Wei li Gang Nan Ting Yang Peng lin xi chen Yu-Meng ZhuBin Wang xiu-Xuan Sun Jian-Hua Dou Jian-li jiang ling li Shi-Jie Wang Zhi-Nan chen National Translational Science Center for Molecular Medicine&department of Cell Biology Fourth Military Medical UniversityXi’anShaanxi 710032P.R.China state key Laboratory of Cancer Biology and National C{2.nical research Center for Digestive Diseases Xijing Hospital of Digestive DiseasesFourth Military Medical UniversityXi’anShaanxi 710032P.R.China department of Clinical Medicine Medical College of Yan’an UniversityYan’anShaanxi 716000P.R.China key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials ScienceNorthwest UniversityXi’anShaanxi 710127P.R.China

Background:The mechanism underlying colorectal cancer(CRC)initiation and progression remains elusive,and overall survival is far from *** studies have shown that PDGFA-associated protein 1(PdaP1)is upregulated in several cancers including ***,we aimed to identify the cause and consequence of PdaP1 dysregulation in CRC and evaluate its role as a potential therapeutic ***:Multi-omics data analysis was performed to identify potential key players in CRC initiation and ***(IHC)staining was applied to determine the expression pattern of PdaP1 in CRC ***1 conditional knockout mice were used to establish colitis and CRC mouse *** sequencing,a phosphoprotein antibody array,western blotting,histological analysis,5-bromo-2′-deoxyuridine(BrdU)incorporation assay,and interactome analysis were applied to identify the underlying mechanisms of PdaP1.A human patient-derived xenograft(PDX)model was used to assess the potential of PdaP1 as a therapeutic ***:PdaP1 was identified as a potential key player in CRC development using multi-omics data ***1 was overexpressed in CRC cells and correlated with reduced overall *** investigation showed that PdaP1 was critical for the regulation of cell proliferation,migration,invasion,and ***,depletion of Pdap1in intestinal epithelial cells impaired mucosal restitution in dextran sulfate sodium salt-induced colitis and inhibited tumor initiation and growth in colitis-associated *** studies showed that c-Myc directly transactivated PdaP1,which contributed to the high PdaP1 expression in CRC ***1 interacted with the juxtamembrane domain of epidermal growth factor receptor(EGFR)and facilitated EGFRmitogen-activated protein kinase(MAPK)signaling activation,which resulted in FOS-related antigen 1(FRA-1)expression,thereby facilitating CRC progres***,silencing of PdaP1 could hinder the

关键词： carcinogenesis colorectal cancer FRA-1 PdaP1 c-Myc

CEPC Technical Design Report

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Radiation Detection Technology and Methods 2024年第1期8卷 I0003-I0016,1-1091页

作者： Waleed Abdallah Tiago Carlos Adorno de Freitas Konstantin Afanaciev Shakeel Ahmad Ijaz Ahmed xiaocong Ai Abid Aleem Wolfgang Altmannshofer Fabio Alves Weiming An Rui An daniele Paolo Anderle Stefan Antusch Yasuo Arai Andrej Arbuzov Abdesslam Arhrib Mustafa Ashry Sha Bai Yu Bai Yang Bai Vipul Bairathi Csaba Balazs Philip Bambade yong Ban Tripamo Bandyopadhyay Shou-Shan Bao Desmond P.Barber Ayse Bat Varvara Batozskaya Subash Chandra Behera Alexander Belyaev Michele Bertucci xiao-Jun Bi Yuanjie Bi Tianjian Bian Fabrizio Bianchi Thomas Biekotter Michela Biglietti Shalva Bilanishvili Deng Binglin Denis Bodrov Anton Bogomyagkov Serge Bondarenko Stewart Boogert Maarten Boonekamp Marcello Borri Angelo Bosotti Vincent Boudry Mohammed Boukidi Igor Boyko Ivanka Bozovic Giuseppe Bozzi Jean-Claude Brient Anastasiia Budzinskaya Masroor Bukhari Vladimir Bytev Giacomo Cacciapaglia Hua Cai Wenyong Cai Wujun Cai Yijian Cai Yizhou Cai Yu{12. Cai Haiying Cai Hua{12.g Cai Lorenzo Calibbi Junsong Cang Guofu Cao Jianshe Cao Antoine Chance Xuejun Chang Yue Chang Zhe Chang xinyuan Chang Wei Chao Auttakit Chatrabhuti Yimin Che Yuzhi Che Bin {12. danping {12. Fuqing {12. Fusan {12. Gang {12. Guoming {12. Hua-xing {12. Huirun {12. Jinhui {12. Ji-Yuan {12. Kai {12. Mali {12. Mingjun {12. Mingshui {12. Ning {12. Shanhong {12. Shanzhen {12. shao-Long {12. shaomin {12. Shiqiang {12. Tianlu {12. Wei {12. xiang {12. xiaoyu {12. xin {12. Xun {12. Xurong {12. Ye {12. Ying {12. Yukai {12. Zelin {12. Zilin {12. Gang {12. Boping {12. Chunhui {12. Hok Chuen {12.g Huajie {12.g Shan {12.g Tongguang {12.g Yunlong Chi Pietro Chimenti Wen Han Chiu Guk Cho Ming-Chung Chu xiaotong Chu Ziliang Chu Guglielmo Coloretti Andreas Crivellin Hanhua Cui xiaohao Cui Zhaoyuan Cui Brunella D'Anzi ling-Yun dai xin{12. dai Xuwen dai Antonio De Maria Nicola De Filippis Christophe De La Taille Francesca De Mori Chiara De Sio Elisa Del Core Shuangxue Deng Wei-Tian Deng Zhi Deng Ziyan Deng Bhupal Dev Tang Dewen Biagio Di Micco Ran Ding Siqin Dingl Yadong Ding Haiyi Dong Jianin AGH university of Science and Technology Faculty of Physics and Applied Computer ScienceKrakow Anhui university HefeiAnhui Applied Physics department Federal Urdu University of ArtsScience and TechnologyIslamabad Banaras Hindu university Institute of ScienceVaranasi Bandirma Onyedi Eylul university Bandirma Beihang university Beijing Beijing Computational Science research Center Beijing Beijing Conveyi LTD Beijing Beijing Glass research Institute Co. LtdBeijing Beijing Institute of Technology Beijing Beijing Normal university Beijing Brown university ProvidenceRI Budker Institute of Nuclear Physics Novosibirsk Cadi Ayyad university Laboratory of Fundamental and Applied PhysicsPolydisciplinary FacultyMarrakech Cairo university Giza Center for Theory and Computation National Tsing Hua UniversityHsinchu Central china Normal university WuhanHubei Central South university ChangshaHunan Centro de Fisica Teorica de Particulas Universidade Tecnica de LisboaLisboa chengdu KaitengSifang Digital Radio&TV Equipment Co. LtdChengduSichuan china academy of engineering physics MianyangSichuan china building materials academy Beijing china Center of Advanced Science and Technology Beijing china Institute of Atomic Energy Beijing china Jiliang {2. HangzhouZhejiang china Nuclear Instrument CO. LTDBeijing china university of Geo{2. Beijing china university of Geo{2. WuhanHubei china university of Mining and Technology XuzhouJiangsu china West Normal university NanchongSichuan Chongqing university Department of PhysicsChongqing Chulalongkorn university Bangkok City university of hong Kong Department of PhysicsHong Kong Cockcroft Institute Daresbury Cornell university IthacaNY CPPM(AMU/IPhU&CNRS/INP) Marseille dalian Minzu {2. DalianLiaoning dalian {2. of Technology Department of PhysicsDalian Deutsches Elektronen-Synchrotron DESY Hamburg Dzhelepov Laboratory of Nuclear Problems of Joint Institute for Nuclear research(DLNP JINR) Dubna East china university Of Science And Technol

The Circular Electron Positron Collider(CEPC)is a large scientific project initiated and hosted by china,fostered through extensive collaboration with international *** complex comprises four accelerators:a 30 GeV linac,a 1.1 GeV damping Ring,a Booster capable of achieving energies up to 180 GeV,and a Collider operating at varying energy modes(Z,W,H,and tt).The linac and damping Ring are situated on the surface,while the subterranean Booster and Collider are housed in a 100 km circumference underground tunnel,strategically accommodating future expansion with provisions for a potential Super Proton Proton Collider(SPPC).The CEPC primarily serves as a Higgs *** its baseline design with synchrotron radiation(SR)power of 30 MW per beam,it can achieve a luminosity of 5×10^(34)cm^(-2.s^(-1)per interaction point(IP),resulting in an integrated luminosity of 13 ab^(-1)for two IPs over a decade,producing 2.6 million Higgs *** the SR power to 50 MW per beam expands the CEPC's capability to generate 4.3 million Higgs bosons,facilitating precise measurements of Higgs coupling at sub-percent levels,exceeding the precision expected from the HL-LHC by an order of *** Technical Design Report(TDR)follows the Preliminary Conceptual Design Report(Pre-CDR,2.15)and the Conceptual Design Report(CDR,2.18),comprehensively detailing the machine's layout,performance metrics,physical design and analysis,technical systems design,R&D and prototyping efforts,and associated civil engineering ***,it includes a cost estimate and a preliminary construction timeline,establishing a framework for forthcoming engineering design phase and site selection *** is anticipated to begin around 2.2.-2.2.,pending government approval,with an estimated duration of 8 *** commencement of experiments and data collection could potentially be initiated in the mid-2.30s.

关键词： initiated exceeding precise

The Chinese Society of Clinical Oncology(CSCO)clinical guidelines for the diagnosis and treatment of nasopharyngeal carcinoma

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Cancer Communications 2021年第11期41卷 1195-1227页

作者： ling-Long Tang Yu-Pei chen Chuan-Ben chen Ming-Yuan chen Nian-yong chen xiao-Zhong chen xiao-Jing Du Wen-Feng Fang Mei Feng Jin Gao fei Han xia He Chao-Su Hu De-sheng Hu Guang-Yuan Hu Hao {12. Wei {12. Feng Jin Jin-Yi Lang Jin-Gao li shao-Jun lin Xu liu Qiu-Fang liu lin Ma Hai-Qiang Mai Ji-yong Qin liang-Fang Shen Ying Sun Pei-Guo Wang Ren-Sheng Wang Ruo-Zheng Wang xiao-Shen Wang Ying Wang Hui Wu Yun-fei xia shao-Wen xiao Kun-Yu Yang Jun-lin Yi xiao-Dong Zhu Jun Ma department of Radiation Oncology State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center of Cancer MedicineGuangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and TherapySun Yat-sen University Cancer Center651 Dongfeng Road EastGuangzhouGuangdong 510060P.R.China department of Radiation Oncology Fujian Provincial Cancer HospitalFujian Medical University Department of Radiation OncologyTeaching Hospital of Fujian Medical University Provincial Clinical CollegeCancer Hospital of Fujian Medical UniversityFuzhouFujian 350014P.R.China department of Nasopharyngeal Carcinoma State Key Laboratory of Oncology in South ChinaCollaborative Innovation Centre for Cancer MedicineGuangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and TherapySun Yat-sen University Cancer CenterGuangzhouGuangdong 510060P.R.China department of Radiation Oncology Cancer CenterWest China HospitalSichuan UniversityChengduSichuan 610041P.R.China Cancer Hospital of the university of Chinese Academy of sciences(Zhe{2. Cancer Hospital)Institute of Cancer and Basic Medicine(IBMC)Chinese Academy of sciences HangzhouZhejiang 310000P.R.China state key Laboratory of Oncology in South{2. Collaborative Innovation Center for Cancer MedicineMedical Oncology DepartmentSun Yat-Sen University Cancer CenterGuangzhouGuangdong 510060P.R.China department of Radiation Oncology Sichuan Cancer Hospital and InstituteSichuan Cancer CenterSchool of MedicineUniversity of Electronic Science and Technology of ChinaChengduSichuan 610041P.R.China department of Radiation Oncology Anhui Provincial Hospital Affiliated to Anhui Medical UniversityHefeiAnhui 230001P.R.China department of Clinical Laboratory Affiliated Cancer Hospital of Nanjing Medical UniversityJiangsu Cancer HospitalJiangsu Institute of Cancer ResearchNanjingJiangsu 210000P.R.China department of Radiation Oncology Fudan University Shanghai Cancer CenterShanghai 200032P.R.China department of Radiotherapy Hubei Cancer HospitalTong

Nasopharyngeal carcinoma(NPC)is a malignant epithelial tumor originating in the nasopharynx and has a high incidence in Southeast Asia and North *** develop these comprehensive guidelines for the diagnosis and management of NPC,the Chinese Society of Clinical Oncology(CSCO)arranged a multi-disciplinary team comprising of experts from all sub-specialties of NPC to write,discuss,and revise the *** on the findings of evidencebased medicine in china and abroad,domestic experts have iteratively developed these guidelines to provide proper management of ***,the guidelines describe the screening,clinical and pathological diagnosis,staging and risk assessment,therapies,and follow-up of NPC,which aim to improve the management of NPC.

关键词： Chinese Society of Clinical Oncology CSCO Nasopharyngeal carcinoma Diagnosis Staging Risk Radiotherapy Chemotherapy Surgery Immunotherapy

Critical Metals Ga,Ge and In in the Global Pb-Zn deposits:Current Understanding,Challenges and Perspectives

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Journal of earth Science 2023年第4期34卷 1308-1311页

作者： Yi Zheng Peng-Peng Yu Zhan-Ke li Suo-fei {2.ong ling-li Zhou Jia-{2. Zhou ChangMing Wang Yu-Miao Meng Yu Zhang Ye-Jian Wang Jing Xu Yue Wu Lan-Xuan Guo Taiping Zhao Guangdong Provincial key Lab of Geological Process and Mineral Resources Survey School of Earth Sciences and Geological EngineeringSun Yat-sen UniversityGuangzhou 510275China state key Laboratory of Geological Processes and Mineral Resources School of Earth ResourcesChina University of GeosciencesWuhan 430074China Collaborative Innovation Center for Exploration of Strategic Mineral Resources China University of GeosciencesWuhan 430074China department of earth {2. Vrije Universiteit Amsterdam de Boelelaan 1085Amsterdam 1081HVNetherlands key Laboratory of Critical Minerals Metallogeny in Universities of Yunnan Province School of Earth SciencesYunnan UniversityKunming 650500China state key Laboratory of Geological Processes and Mineral Resources School of Earth Sciences and ResourcesChina University of GeosciencesBeijing 100083China state key Laboratory of Ore {2. Geochemistry Institute of GeochemistryChinese Academy of ScienceGuiyang 550081China key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring School of Geosciences and Info-PhysicsCentral South UniversityChangsha 410083China key Laboratory of Submarine Geosciences Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China Zijin School of Geology and Mining Fuzhou UniversityFuzhou 350108China key Laboratory of Exploration Technologies for Oil and Gas Resources Key Laboratory of Petroleum Geochemistry and EnvironmentYangtze UniversityWuhan 430100China Zhongjin lingnan Nonfemetal Co. LtdShenzhen 518000China key Laboratory of Mineralogy and Metallogeny Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China

BACKGROUND A spectrum of strategically critical metals, such as gallium(Ga), germanium(Ge) and indium(In), with promising applications in green and high-tech fields, are produced as byproducts of zinc ores in a variet... 详细信息

关键词： magmatic hydrothermal porphyry

Novel evidence for the σ-bond linear-chain molecular structure in ^(14)C

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Chinese Physics C 2021年第8期45卷 71-75页

作者： Han-zhou Yu Jing li Yan-lin Ye BiaoYang {2.g-Jianlin Hui-Ming Jia Jian-ling Lou xiao-fei Yang T.Baba Qi-Te li Yu-{2.g Ge Zhi-Huan li Hui Hua Jin-Yan Xu Zai-hong Yang Jun Feng hong-liang Zang Qiang liu Wei jiang Yang liu Jing-Jing li Wei liu Shi-Wei Bai Jie {2. Jia-xing Han Jia-Hao {2. Kai Ma Dong-xi Wang Lei Yang Nan-Ru Ma li-Jie Sun School of Physics and state key Laboratory of Nuclear Physics and Technology Peking UniversityBeijing 100871China FRIB/NSCL Laboratory Michigan State UniversityEast LansingMichigan 48824USA china Institute of Atomic Energy Beijing 102413China Kitami Institute of Technology 090-8507 KitamiJapan research Center for Nuclear Physics(RCNP) Osaka University10-1 MihogaokaIbarakiOsaka 567-0047Japan Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Spallation Neutron Source Science Center Dongguan 523803China

A multi-nucleon transfer and cluster decay experiment,^(7)li(^(11)B,^(14)C^(*)→α+^(10)Be)α,is conducted at an incident beam energy of 55 *** reaction channel has a significantly large 0-value,which favors populating the high lying resonant states in ^(14)*** decay paths,from these resonances to various states of the final nucleus ^(10) Be,can be selected,owing to the experimentally achieved optimal resolution of the Q-value spectrum.A number of resonant states are reconstructed from the forward emitting 10Be+α fragments,and their major molecular structures can be detected according to the selective decay paths and relative decay widths.A state at 2..4(2.MeV validates the previously measured and theoretically predicted band head of the positive-parity σ-bond linear-chain mo-lecular *** additional resonances at 2..9(2.and 2..2.2.MeV are identified and consistent with the predicted 2.(+) and 4^(+) members of the same molecular band,thus providing novel evidences for the existence of the exotic clustering chain structure in neutron-rich carbon isotopes.A few high energy resonances,which also indicate the presence of the σ-bond molecular structure,are observed;however,further studies are still required to clarify their ascription in band systematics.

关键词： linear-chain state reaction 0-value transfer reaction cluster decay relative branching ratio

Influence of in-flight particle characteristics and substrate temperature on the formation mechanisms of hypereutectic Al-Si-Cu coatings prepared by supersonic atmospheric plasma spraying

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Journal of Materials Science & Technology 2021年第28期87卷 216-233页

作者： Peng-fei He Guo-zheng Ma Hai-dou Wang ling Tang Ming {2.u Yu Bai Yu Wang Jian-jiang Tang Dong-yu He Hai-chao Zhao Tian-yang Yu National key Laboratory for Remanufacturing Army Academy of Armored ForcesBeijing 100072China School of Mechanical Engineering and Automation Beihang UniversityBeijing100191China state key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong UniversityXi’an710049China state key Laboratory of Electrical Insulation and Power Equipment Xi’an Jiaotong UniversityXi’an710049China School of Materials Engineering Xi'an Aeronautical UniversityXi'an710077China

Hypereutectic Al-Si-Cu coatings were prepared by supersonic atmospheric plasma spraying to enhance the surface performance of lightweight *** find out optimum process conditions and achieve desirable coatings,this work focuses on the influence of three important parameters(in-flight particle temperature,impact velocity,and substrate temperature)on the collected splats morphology coatings microstructure and *** show that appropriate combinations of temperature and velocity of in-flight particles cannot only completely melt hypereutectic Al-Si-Cu particles especially the primary Si phase,but also provide the particles with sufficient kinetic ***,the optimized coating consists of 98.6%of fully-melted region with nanosized coupled eutectic and 0.9%of *** the substrate deposition temperature promotes the transition from inhomogeneous banded microstructure to homogeneous equiaxed microstructure with a lower porosity *** observations are further interpreted by a newly developed phase-change heat transfer model on quantitatively revealing the solidification and remelting behaviors of several splats deposited on substrate Besides,phase evolutions including the formation of supersaturatedα-Al matrix solid solution,growth of Si and Al_(2.Cu phases at different process conditions are *** ideal microstructure(low fractions of unmelted/partially-melted regions and defects)together with solid solution,grain refinement and second phase strengthening effects contributes to the enhanced microhardness of *** integrated study not only provides a framework for optimizing Al-Si based coatings via thermal spraying but also gives valuable insights into the formation mechanisms of this class of coating materials.

关键词： Thermal sprayed coatings Al-Si alloys In-flight particle characteristics Substrate temperature Process control