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A Novel chain constructed from 2-（4-pyridyl）benzimidazole and cuprous chloride complex:[Cu（HpyBim）Cl]

中国化学会第五届全国结构化学学术会议

作者： zhen-guo zhao xiao-yuan wu can-zhong lu~* state key laboratory of structural chemistry,fujian institute of research on the structure of matter,chinese academy of sciences,fuzhou,fujian 350002,p.r.china.

＜正＞polynuclear nickel（Ⅱ）co-orination compounds with derivatives of 1,2,4-triazole have been of growing research interest in recent decades due to their unique magnetic properties. In this paper,we report the syn...

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A Novel chain constructed from 2-（4-Pyridyl）benzimidazole ...

Synthesis, crystal structure of 2D Lanthanum-Silver Heterometallic Coordination Framework

中国化学会第五届全国结构化学学术会议

作者： Shan-Ci Chen xiao-yuan wu zhen-guo zhao can-zhong lu~* The state key laboratory of structural chemistry,fujian institute of research on the structure of matter,chinese academy of sciences,fuzhou 350002,china.

＜正＞Crystal engineering of metal complexes,especially coordination polymers has been greatly developed in the past *** supramolecular architectures organized by coordinate covalent bonds or supramolecular contacts such as hydrogen bonding and π-π interactions were reported,Some neutral,N-based donor ligands such as benzimidazole and pyridine are often

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Synthesis, crystal structure of 2D Lanthanum-Silver Heterome...

BambooBase:A comprehensive database of bamboo omics and systematics

中国化学会第五届全国结构化学学术会议

作者： Fei Wang xiao-yuan wu Quan-guo Zhai zhen-guo zhao xiao-Yu Jiang Yi-Ming Xie can-zhong lu~* state key laboratory of structural chemistry,fujian institute of research on the structure of matter,chinese academy of sciences,fuzhou,fujian 350002,p.r.china.

＜正＞The design and synthesis lanthanide-transition metal of heterometallic complexes, such as 3d-4f or 4d-4f metal systems,have attracted increasing attention. A novel La-Ag 4d-4f heterometallic coordination polymer...

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Molecular plant 2024年第5期17卷 682-685页

作者： Yun-Long Liu Shu-Yang Gao Guihua Jin Meng-yuan Zhou Qijuan Gao Cen guo Yi-Zhou Yang Liang-zhong Niu Enhua Xia zhen-Hua guo peng-Fei Ma De-Zhu Li Germplasm Bank of Wild Species&Yunnan key laboratory of Crop Wild relatives Omics Kunming Institute of BotanyChinese Academy of SciencesKunmingYunnan 650201China Kunming College of Life Science University of Chinese Academy of SciencesKunmingYunnan 650201China state key laboratory of Tea plant Biology and Utilization Anhui Agricultural UniversityHefeiAnhui 230036China School of Computer and Artificial Intelligence Hefei Normal UniversityHefeiAnhui 230061China key laboratory for plant Diversity and Biogeography in East Asia Kunming Institute of BotanyChinese Academy of SciencesKunmingYunnan 650201China

Dear Editor,Bamboos(Bambusoideae,poaceae)are of significant economic and ecological importance,supporting billions of people and contributing to international trade(wu et al.,2023).They play a crucial role in carbon fixation and support a multitude of other species including the giant panda(Clark et al.,2015).Since the release of the first draft genome of moso bamboo(phyllostachys edulis)(peng et al.,2013),there has been a notable increase in the sequencing,assembly,and annotation of diverse bamboo genomes(guo et al.,2019;zheng et al.,2022;Ma et al.,2024).An existing resource for bamboo genomics,BambooGDB(zhao et al.,2014),provides information based on the individual draft reference genome of moso *** is needed,however,is a resource reinforcing multiple genome assemblies in Bambusoideae to enable researchers to unravel the evolutionary history of chromosomes and genes through cladespecific comparative genomic ***,we present BambooBase(https://***/),a newly developed web-based database designed to provide a seamless user experience for bamboo omics and systematics.

关键词： enable supporting Bamboo

10B-doped MCp detector developed for neutron resonance imaging at Back-n white neutron source

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Nuclear Science and Techniques 2024年第8期35卷 58-68页

作者： Qiang Li Li‑Jiao Wang Jing‑Yu Tang Xiang‑Biao Qiu zhen Chen Mao‑yuan zhao Chang‑Jun Ning Kai pan Wei Xu Tao Li Su‑peng lu Han Yi rui‑rui Fan Chang‑Qing Feng rong Zhang xiao‑Yang Sun Qi An Hao‑Fan Bai Jiang‑Bo Bai Jie Bao ping Cao Qi‑ping Chen Yong‑Hao Chen Zeng‑Qi Cui An‑Chuan Fan Fan‑zhen Feng Min‑Hao Gu Chang‑Cai Han Zi‑Jie Han guo‑Zhu He Yong‑Cheng He Yang Hong Yi‑Wei Hu Han‑Xiong Huang Wei Jiang Zhi‑Jie Jiang zheng‑Yao Jin Ling Kang Bo Li Gong Li xiao Li Yang Li Jie Liu rong Liu Shu‑Bin Liu Yi‑Na Liu Guang‑yuan luan Jie ren Zhi‑Zhou ren Xi‑Chao ruan zhao‑Hui Song Kang Sun Zhi‑Xin Tan Sheng‑Da Tang Jin‑Cheng Wang peng‑Cheng Wang zhao‑Hui Wang zhong‑Wei Wen xiao‑Guang wu Xuan wu Cong Xia Yong‑Ji Yu guo‑Hui Zhang Hang‑Chang Zhang Lin‑Hao Zhang Qi‑Wei Zhang Xian‑peng Zhang Yu‑Liang Zhang Yue Zhang Zhi‑Yong Zhang Zhi‑Hao Zhou Ke‑Jun Zhu Chong Zou institute of High Energy physics Chinese Academy of Sciences(CAS)Beijing 100049China Spallation Neutron Source Science Center Dongguan 523803China state key laboratory of particle Detection and Electronics Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Dongguan Songshan Lake Future School Dongguan 523808China School of Nuclear Science and Technology University of Science and Technology of ChinaHefei 230027China state key laboratory of particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China North Night Vision Science and Technology(Nanjing)research institute Co.Ltd Nanjing 211106China Department of Modern physics University of Science and Technology of ChinaHefei 230026China state key laboratory of Nuclear physics and Technology School of PhysicsPeking UniversityBeijing 100871China institute of Modern physics Fudan UniversityShanghai 200433China key laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China china academy of Engineering physics Institute of Nuclear Physics and ChemistryMianyang 621900China USTC archaeometry lab University of Science and Technology of ChinaHefei 230026China Northwest institute of Nuclear Technology Xi’an 710024China University of chinese academy of sciences Beijing 100049China china Shipbuilding Trading Co. LtdBeijing 100044China

Neutron resonance imaging(NrI)has recently emerged as an appealing technique for neutron *** complexity surpasses that of conventional transmission imaging,as it requires a high demand for both a neutron source and ***,the progression of NrI technology has been sluggish since its inception in the 1980s,particularly considering the limited studies analyzing the neutron energy range above *** white neutron source(Back-n)at the china Spallation Neutron Source(CSNS)provides favorable beam conditions for the development of the NrI technique over a wide neutron energy range from eV to ***-sensitive microchannel plates(MCp)have emerged as a cutting-edge tool in the field of neutron detection owing to their high temporal and spatial resolutions,high detection efficiency,and low *** this study,we report the development of a 10B-doped MCp detector,along with its associated electronics,data processing system,and NrI experiments at the *** heavy elements such as gold,silver,tungsten,and indium can be easily identified in the transmission images by their characteristic resonance peaks in the 1–100 eV energy range;the more difficult medium-weight elements such as iron,copper,and aluminum with resonance peaks in the 1–100 keV energy range can also be *** particular,results in the neutron energy range of dozens of keV(Aluminum)are reported here for the first time.

关键词： Neutron resonance imaging 10B doped MCp detector White neutron source Sample nuclide identification

Nondestructive technique for identifying nuclides using neutron resonance transmission analysis at CSNS Back-n

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Nuclear Science and Techniques 2024年第1期35卷 178-187页

作者： Sheng-Da Tang Yong-Hao Chen Jing-Yu Tang rui-rui Fan Qiang Li Gong Li Dong Liu zheng-Yao Jin Xing-Zhu Cui Tian-Xiang Chen Yi-Wei Yang rong Liu Han Yi Yang Li zhen Yang Qi An Hao-Fan Bai Jiang-Bo Bai Jie Bao ping Cao Qi-ping Chen zhen Chen Zeng-Qi Cui An-Chuan Fan Chang-Qing Feng Fan-zhen Feng Ke-Qing Gao Min-Hao Gu Chang-Cai Han Zi-Jie Han guo-Zhu He Yong-Cheng He Yang Hong Yi-Wei Hu Han-Xiong Huang Wei-Hua Jia Hao-yu Jiang Wei Jiang Zhi-jie Jiang Ling Kang Bo Li Chao Li Jia-Wen Li xiao Li Jie Liu Shu-Bin Liu Guang-yuan luan Chang-Jun Ning Bin-Bin Qi Jie ren Zhi-Zhou ren Xi-Chao ruan zhao-Hui Song Kang Sun Zhi-Xin Tan Li-Jiao Wang peng-Cheng Wang zhao-Hui Wang zhong-Wei Wen xiao-Guang wu Xuan wu Li-Kun Xie Yong-Ji Yu guo-Hui Zhang Lin-Hao Zhang Mo-Han Zhang Qi-Wei Zhang Xian-peng Zhang Yu-Liang Zhang Yue Zhang Zhi-Yong Zhang Mao-yuan zhao lu-ping Zhou Zhi-Hao Zhou Ke-Jun Zhu Sino-French institute of Nuclear Engineering and Technology Sun Yat-sen UniversityZhuhai 519082China institute of High-Energy physics Chinese Academy of Sciences(CAS)Beijing 100049China Spallation Neutron Source Science Center Dongguan 523803China School of Nuclear Science and Technology University of Science and Technology of ChinaHefei 230026China state key laboratory of particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China state key laboratory of particle Detection and Electronics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China USTC Archaeometry laboratory University of Science and Technology of ChinaHefei 230026China institute of Nuclear physics and chemistry China Academy of Engineering PhysicsMianyang 621900China Department of Modern physics University of Science and Technology of ChinaHefei 230026China state key laboratory of Nuclear physics and Technology School of PhysicsPeking UniversityBeijing 100871China key laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China Northwest institute of Nuclear Technology Xi’an 710024China University of chinese academy of sciences Beijing 100049China

Nondestructive and noninvasive neutron assays are essential applications of neutron *** resonance transmission analysis(NrTA)is a powerful nondestructive method for investigating the elemental composition of an *** back-streaming neutron line(Back-n)is a newly built time-of-flight facility at the china Spallation Neutron Source(CSNS)that provides neutrons in the eV to 300 MeV range.A feasibility study of the NrTA method for nuclide identification was conducted at the CSNS Back-n via two test *** results demonstrate that it is feasible to identify different elements and isotopes in samples using the NrTA method at *** study reveals its potential future applications.

关键词： CSNS White neutron beam NrTA Nuclide identification Nondestructive method

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 Metallic 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 Silicon 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

Study of the response of 10B-doped MCp to wide-energy range neutrons from eV to MeV

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Nuclear Science and Techniques 2024年第8期35卷 132-141页

作者： Qiang Li Li‑Jiao Wang Xiang‑Biao Qiu Jing‑Wen Li Wei Xu Tao Li Ze‑Bin Lin Chang‑Jun Ning Yong‑Hao Chen rui‑rui Fan Kang Sun Jing‑Yu Tang rong Zhang Han‑Tao Jing Bo Mei Qi An Hao‑Fan Bai Jiang‑Bo Bai Jie Bao ping Cao Qi‑ping Chen zhen Chen Zeng‑Qi Cui An‑Chuan Fan Chang‑Qing Feng Fan‑zhen Feng Ke‑Qing Gao Min‑Hao Gu Chang‑Cai Han Zi‑Jie Han guo‑Zhu He Yong‑Cheng He Yang Hong Yi‑Wei Hu Han‑Xiong Huang Wei‑Hua Jia Hao‑Yu Jiang Wei Jiang Zhi‑Jie Jiang zheng‑Yao Jin Ling Kang Bo Li Chao Li Gong Li Jia‑Wen Li xiao Li Yang Li Jie Liu rong Liu Shu‑Bin Liu Guang‑yuan luan Bin‑Bin Qi Jie ren Zhi‑Zhou ren Xi‑Chao ruan zhao‑Hui Song Zhi‑Xin Tan Sheng‑Da Tang peng‑Cheng Wang zhao‑Hui Wang zhong‑Wei Wen xiao‑Guang wu Xuan wu Li‑Kun Xie Yi‑Wei Yang Han Yi Yong‑Ji Yu guo‑Hui Zhang Lin‑Hao Zhang Mo‑Han Zhang Qi‑Wei Zhang Xian‑peng Zhang Yu‑Liang Zhang Yue Zhang Zhi‑Yong Zhang Mao‑yuan zhao lu‑ping Zhou Zhi‑Hao Zhou Ke‑Jun Zhu institute of High Energy physics Chinese Academy of Sciences(CAS)Beijing 100049China Spallation Neutron Source Science Center Dongguan 523803China state key laboratory of particle Detection and Electronics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Dongguan Songshan Lake Future School Dongguan 523808China North Night Vision Science&Technology(Nanjing)research institute Co.Ltd. Nanjing 211106China Sino‑French institute of Nuclear Engineering and Technology Sun Yat-sen UniversityZhuhai 519082China School of Nuclear Science and Technology University of Science and Technology of ChinaHefei 230027China state key laboratory of particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Modern physics University of Science and Technology of ChinaHefei 230026China state key laboratory of Nuclear physics and Technology School of PhysicsPeking UniversityBeijing 100871China institute of Nuclear physics and chemistry China Academy of Engineering PhysicsMianyang 621900China key laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China USTC Archaeometry Lab University of Science and Technology of ChinaHefei 230026China Northwest institute of Nuclear Technology Xi’an 710024China University of chinese academy of sciences Beijing 100049China

Neutron-sensitive microchannel plates(nMCps)have applications in neutron detection,including energy spectrum measurements,neutron-induced cross sections,and neutron imaging.10B-doped MCps(B-MCps)have attracted significant attention owing to their potential for exhibiting a high neutron detection efficiency over a large neutron energy *** spatial and temporal resolutions are useful for neutron energy-resolved ***,their practical applications still face many technical *** this study,a B-MCp with 10 mol%10B was tested for its response to wide-energy neutrons from eV to MeV at the Back-n white neutron source at the china Spallation Neutron *** neutron detection efficiency was calibrated at 1 eV,which is approximately 300 times that of an ordinary MCp and indicates the success of 10 B *** factors that caused the reduction in the detection efficiency were simulated and *** neutron energy spectrum obtained using B-MCp was compared with that obtained by other measurement methods,and showed very good consistency for neutron energies below tens of *** response is more complicated at higher neutron energy,at which point the elastic and nonelastic reactions of all nuclides of B-MCp gradually become *** is beneficial for the detection of neutrons,as it compensates for the detection efficiency of B-MCp for high-energy neutrons.

关键词： Neutron radiation image 10B-doped MCp Neutron response Wide-energy range neutrons

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 Yuchen Cai Haiying Cai Huacheng 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 Chen Danping Chen Fuqing Chen Fusan Chen Gang Chen guoming Chen Hua-Xing Chen Huirun Chen Jinhui Chen Ji-yuan Chen Kai Chen Mali Chen Mingjun Chen Mingshui Chen Ning Chen Shanhong Chen Shanzhen Chen Shao-Long Chen Shaomin Chen Shiqiang Chen Tianlu Chen Wei Chen Xiang Chen xiaoyu Chen Xin Chen Xun Chen Xurong Chen Ye Chen Ying Chen Yukai Chen Zelin Chen Zilin Chen Gang Chen Boping Chen Chunhui Chen Hok Chuen Cheng Huajie Cheng Shan Cheng Tongguang Cheng 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 Xinchen 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 University HangzhouZhejiang china Nuclear Instrument CO. LTDBeijing china University of Geosciences Beijing china University of Geosciences 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 University DalianLiaoning Dalian University 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,2015)and the Conceptual Design report(CDr,2018),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 2027-2028,pending government approval,with an estimated duration of 8 *** commencement of experiments and data collection could potentially be initiated in the mid-2030s.

关键词： initiated exceeding precise

Identification and structures of Two Main Unknown Components in the By-product from the Hydration Synthesis of Camphor

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chinese Journal of structural chemistry 2000年第6期19卷 440-443页

作者： wu Ling LI zhao-Ji KANG Yao QIN Ye-Yan TANG Yan-Hong YAO yuan-Gen zhong Qing-You LIN Jing-Fu LIN xiao-Qing WANG zhen-zhong state key laboratory of structural chemistry Fujian Institute of Research on the Structure of Matterthe Chinese Academy of SciencesFuzhouFujian 350002 fujian wuping Forest product Chemical Factory WupingFujian 364300 fujian wuping Country Science and Technology Bureau WupingFujian 364300

Two main unknown components in the by-product of camphor hydration synthesis were separated and identified by fine fractional distillation and spectroscopic analyses. The components with different ratios of unknown components A and B were collected by the further distillation. The combined spectral results of GC, MS, GC-MS and 13 C NMr of the collected samples revealed that A is exo-2, 2, 3-trimethylbicyclo[2, 2, 1]heptane, and B is endo-2, 2, 3-trimethylbicyclo[2, 2, 1]heptane.

关键词： isolation identification hydration synthesis of camphor