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Clinical and pathological changes in cerebral arteriovenous malformations after stereotactic radiosurgery failure

Chinese Medical Journal 2008年第12期121卷 1076-1079页

作者： liu wei-ming ye xun zhao yuan-li wang shuo zhao ji-zong Department of Neurosurgery Beijing Tiantan Hospital Capital Medical University Beijing 100050 China

Background Stereotactic radiosurgery is an altemative to resection of intracranial cerebral arteriovenous malformations （AVMs）, while it will fail in some cases. This study aimed to evaluate the changes after stereotactic radiosurgery for AVMs.Methods Nineteen cases with cerebral AVMs had failure after stereotactic radiosurgery therapy. The symptoms and angiography were assessed. All patients underwent microsurgery. Pathologic examination was performed for all cases and electron microscopic examination was carried out in 6 patients.Results Seven cases had hemorrhage from 12 to 98 months after stereotactic radiosurgery, 5 had headache, 4 had refractory encephalon edema, 2 had epilepsy as a new symptom and 1 had a pressure cyst 5 years after radiosurgery. Angiography in 18 cases, 8-98 months after radiation therapy, demonstrated no significant changes in 5 cases, slight reduction in 9, near complete obliteration in 1 and complete obliteration in 3. An abnormal vessel was found on pathologic examination in 17 cases, even one case had obliterated in angiography. Electron microscopy examination showed vessel wall weakness, but the vessels remained open and blood circulated. One case died because of a moribund state before surgery. The other 18 cases had no new neurological deficiencies, seizure control and no hemorrhage occurred after microsurgery at an average follow-up of 3 years.Conclusion Stereotactic radiotherapy for AVMs should have a long period follow-up. If serious complications occur, microsurgery can be performed as salvage treatment.

关键词： cerebral arteriovenous malformations stereotactic radiosurgery microsurgery complications

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Paired quasi-periodic pulsations of hard X-ray emission in a solar flare

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Science China(Physics,Mechanics & Astronomy) 2023年第5期66卷 195-206页

作者： Hai-Sheng zhao Dong li Shao-lin Xiong Yan-Qiu Zhang Yang Su wei Chen Yi zhao Xiao-Bo li jia-Cong liu Wen-Xi Peng Rui Qiao Xin-Qiao li Xiang-Yang Wen li-ming Song Shi-jie Zheng Xin-Ying Song Xiao-Yun zhao Yue Huang Shuang-Nan Zhang shuo Xiao Ce Cai Zheng-Hua An Can Chen Gang Chen wei Chen Yan-Qi Du Min Gao Ke Gong Dong-Ya Guo Zhi-wei Guo jian-jian He Bin li Chao li Chao-Yang li Gang li jian-Hui li Lu li Qing-Xin li Yan-Guo li jing liang Xiao-Hua liang jin-yuan liao Xiao-jing liu Ya-Qing liu Qi Luo Xiang Ma Bin Meng Ge Ou Dong-li Shi jing-Yan Shi Gong-Xing Sun Xi-Lei Sun You-li Tuo Chen-wei wang Hui wang jin wang jin-Zhou wang Ping wang Wen-Shuai wang Hong Wu Sheng-Lun Xie Yan-Bing Xu Yu-Peng Xu wang-Chen Xue Sheng Yang Min Yao jian-Ying ye Qi-Bin Yi Chao-Yue Zhang Da-li Zhang Fan Zhang Fei Zhang Hong-Mei Zhang Kai Zhang Peng Zhang Xiao-Lu Zhang Zhen Zhang Guo-Ying zhao Shi-Yi zhao Chao Zheng Xing Zhou Yue Zhu Key Laboratory for Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Purple Mountain Observatory Chinese Academy of SciencesNanjing 210023China University of Chinese Academy of Sciences Beijing 100049China Department of Astronomy Beijing Normal UniversityBeijing 100875China School of Computing and Artificial Intelligence Southwest Jiaotong UniversityChengdu 611756China Physics and Space Science College China West Normal UniversityNanchong 637002China Key Laboratory of Stellar and Interstellar Physics and Department of Physics Xiangtan UniversityXiangtan 411105China Institute of Astrophysics Central China Normal UniversityWuhan 430079China School of Physics Changchun University of Science and TechnologyChangchun 130022China College of Physics and Engineering Qufu Normal UniversityQufu 273165China College of Physics Sciences&Technology Hebei UniversityBaoding 071002China

We investigate high time resolution data obtained by the Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor(GECAM)during the flare event on 2022 April 21 at 01:52 *** subpeaks with durations of 4-6 s have been detected in the hard X-ray precursor phase,and the key feature is that they appear in pairs and seem like double-peak *** subpeaks are rarely observed in hard X-ray band and confirmed by the microwave obtained by Nobeyama Radio Polarimeters(NoRP)and Radio Solar Telescope Network(RSTN).While an exponential function can describe the continuum component of the time profile from the precursor to part of the impulsive *** periods of quasi-periodic pulsations(QPPs)are detected to be about 7.3 and 12.8 s for the precursor and impulsive phase,respectively,with at least 95%confidence *** paired QPPs are assumed to be double-peak QPPs and then the scenario of current loop coalescence model is found to be in good agreement with our *** precursor phase can be interpreted as the oscillating coalescence of two islands,while the impulsive phase can be interpreted as more islands to coalesce one by one to form larger islands.

关键词： solar flare QPPs loop coalescence circular-ribbon flare

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Recent Progress on Two-Dimensional Materials

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物理化学学报 2022年

作者： Cheng Chang wei Chen ye Chen Yonghua Chen Yu Chen Feng Ding Chunhai Fan Hongjin Fan Zhanxi Fan Cheng Gong Yongji Gong Qiyuan He xun Hong Sheng Hu weida Hu wei Huang yuan Huang wei ji Dehui li Lain-Jong li Qiang li li lin Chongyi ling minghua liu Nan liu Zhuang liu Kian Ping Loh jianmin Ma Feng Miao Hailin Peng mingfei Shao li Song Shao Su shuo Sun Chaoliang Tan Zhiyong Tang Dingsheng wang Huan wang jinlan wang Xin wang Xinran wang Andrew T. S. Wee Zhongming wei Yuen Wu Zhongshuai Wu jie Xiong Qihua Xiong weigao Xu Peng Yin Haibo Zeng Zhiyuan Zeng Tianyou Zhai Han Zhang Hui Zhang Qichun Zhang Tierui Zhang Xiang Zhang lidong zhao Meiting zhao weijie zhao Yunxuan zhao Kaige Zhou Xing Zhou Yu Zhou Hongwei Zhu Hua Zhang Zhongfan liu Department of Electrical and Computer Engineering and Quantum Technology Center， University of Maryland， College Park School of Materials Science and Engineering， Beihang University Department of Materials Science and Engineering， City University of Hong Kong Center of Advanced Nanocatalysis (CAN)， Hefei National Laboratory for Physical Sciences at the Microscale， Department of Applied Chemistry， University of Science and Technology of China College of Chemistry and Chemical Engineering， State Key Laboratory of Physical Chemistry of Solid Surfaces， Collaborative Innovation Center of Chemistry for Energy Materials (iChEM)， Xiamen University State Key Laboratory of Infrared Physics， Shanghai Institute of Technical Physics， Chinese Academy of Sciences Advanced Research Institute of Multidisciplinary Science， Beijing Institute of Technology Beijing Key Laboratory of Optoelectronic Functional Materials & Micro-Nano Devices， Department of Physics， Renmin University of China School of Optical and Electronic Information， Wuhan National Laboratory for Optoelectronics， Huazhong University of Science and Technology Department of Mechanical Engineering， The University of Hong Kong Institute of Science and Technology Austria School of Physics， Southeast University Department of Materials Science and Engineering， National University of Singapore CAS Key Laboratory of Colloid， Interface and Chemical Thermodynamics， Institute of Chemistry， Chinese Academy of Sciences College of Chemistry， Beijing Normal University Institute of Functional Nano & Soft Materials (FUNSOM)， jiangsu Key Laboratory for Carbon-based Functional Materials and Devices， Soochow University School of Materials and Energy， University of Electronic Science and Technology of China School of Physics， Nanjing University Center for Nanochemistry (CNC)， Beijing National Laboratory for Molecular Sciences， College of Chemistry and Molecular Engineering， Beijing Graphene Institute (BGI)， Peking University State Key Laboratory of Chemical Resource Engineering， Beijing

Research on two-dimensional (2D) materials has been explosively increasing in last seventeen years in varying subjects including condensed matter physics， electronic engineering， materials science， and chemistry since the mechanical exfoliation of graphene in 2004. Starting from graphene， 2D materials now have become a big family with numerous members and diverse categories. The unique structural features and physicochemical properties of 2D materials make them one class of the most appealing candidates for a wide range of potential applications. In particular， we have seen some major breakthroughs made in the field of 2D materials in last five years not only in developing novel synthetic methods and exploring new structures/properties but also in identifying innovative applications and pushing forward commercialisation. In this review， we provide a critical summary on the recent progress made in the field of 2D materials with a particular focus on last five years. After a brief background introduction， we first discuss the major synthetic methods for 2D materials， including the mechanical exfoliation， liquid exfoliation， vapor phase deposition， and wet-chemical synthesis as well as phase engineering of 2D materials belonging to the field of phase engineering of nanomaterials (PEN). We then introduce the superconducting/optical/magnetic properties and chirality of 2D materials along with newly emerging magic angle 2D superlattices. Following that， the promising applications of 2D materials in electronics， optoelectronics， catalysis， energy storage， solar cells， biomedicine， sensors， environments， etc. are described sequentially. Thereafter， we present the theoretic calculations and simulations of 2D materials. Finally， after concluding the current progress， we provide some personal discussions on the existing challenges and future outlooks in this rapidly developing field.

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Consensus statement on layout and delivery of automatic external defibrillator in China

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Journal of Hainan Medical University 2020年第15期26卷 18-23页

作者： Yu Cao Song Chen Yan-Fen Chai Xiao-Hui Chen Yu-Guo Chen Shao-Wen Cheng Wen-wei Cheng Bang-Han Ding Yang Deng jie Fu Bang-jiang Fang Mai-Ying Fan li Gui Ping Gong wei Guo Shu-Bin Guo liang Huang ji-yuan Han Zhong ji Xian-Fei ji Xin-Cai ji Hong-Xu jin Xin-Jun jiang wang-Xiang jiang jia-liang liu Xiao-Ran liu Zhi liu Chuan-Zhu Lv Feng Lu Tan-Shi li Xin li Yong li Shang-Lun li Shuang-ming li Xiao-Gang li Bao-Jun li Pei-Wu li Chun-Sheng li Zhi-Jun li Chang-Luo li Xiang-Min li Yin-Ping li zong-Jun Lu Zu-xun Lu Zhong-Qiu Lu Zhi-Qian Luo Xiao-Xing liao jian-Bo Lei Tao Ma Yu Ma Yue-Feng Ma Qing-Bian Ma lin-Hao Ma Jun-Qi Ma Shi-Nan Nie jie-Miao Ou-Yang Peng Peng Qiao Pei Shu-ming Pan Guo-Zhong Qing li-jie Qin Wu-Ying Qiao Fei Shao wei Song Xing-Yue Song Zhen-Ju Song Rong-Ju Sun De-Ya Shang Du-Juan Sha Gui-Lan Tao Guo-Gang Tian Ying-Ping Tian jian-Guang Tian Chao-Yang Tong Zi-Ren Tang Meng-Xiong Tang Guo-Ping Wu Zhi Wan Tao wang Xin wang Peng wang Zhong wang Tong wang Ri-Xing wang Yi-Xin wang Xiao-Dan wang ling Wu wei wei Hua Xiang Feng Xu Jun Xu jie Xu Miao-Rong Xie shuo-Gui Xu Tie Xu Feng Yu Wen Yi li-Shan Yang Shi-jiao Yan jin-jian Yao Shou-Chun Yan Xue-Zhong Yu Xian-Zhi ye Xian-liang Yan Fu-Bing Zhou Rong-Bin Zhou ming Zhou Qiang Zhou jin Zhou Ping Zhou Chang-Ju Zhu Hua-Dong Zhu ji-Hong Zhu Hong Zhang Mao Zhang Hua Zhang Na Zhang Guo-Qiang Zhang Guo-Xiu Zhang jin-Song Zhang Wen-Wu Zhang Wen-Zhong Zhang jian-Feng Zhang Yi-Min Zhu Jun Zeng yuan Zheng Zhi-jie Zheng Shen zhao Yan zhao Min zhao Bin zhao Xiao-Dong zhao Xiao-jing zhao Hong-Ke Zeng Sheng-Qiang Zou The Chinese Society of Emergency Medicine Research Unit of Island Emergency Medicine Chinese Academy of Medical SciencesHainan Medical University Key Laboratory of Emergency and Trauma of Ministry of Education Hainan Medical UniversityHaikouHainanChina Emergency and Trauma College Hainan Medical UniversityHaikouHainanChina Department of Emergency Hainan Clinical Research Center for Acute and Critical DiseasesThe Second Affiliated Hospital of Hainan Medical UniversityHaikouHainanChina Key Laboratory of Hainan Trauma and Disaster Rescue Key Laboratory of Trauma of Hainan Medical University

*** Sudden cardiac death(SCD)refers to sudden death due to a variety of cardiac *** is manifested as a sudden loss of consciousness,cardiac arrest,and respiratory arrest and generally shows early symptoms that are atypical and not easily detected[1].According to a recent study,nearly 544000 patients suffer from SCD every year in China[2].

关键词： cardiac death respiratory

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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

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中枢神经细胞瘤：71例病例分析

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中国医师进修杂志（外科版） 2009年第6期32卷 1-4页

作者：韩利江赵继宗王硕赵元立袁葛季楠田永吉任同张东孙振荣肖新如唐凯朴明学李学记刘海叶迅陈晓霖首都医科大学附属北京天坛医院神经外科 100050 中国医学科学院肿瘤医院神经外科

目的分析经病理证实的中枢神经细胞瘤的诊断和治疗结果。方法回顾性分析2003年3月至2007年12月收治的71例中枢神经细胞瘤患者的诊断和治疗情况。结果肿瘤平均大小为40cm^2；中位随访时间为22个月。22个月的存活率和局部控制率分别为95．... 详细信息

目的分析经病理证实的中枢神经细胞瘤的诊断和治疗结果。方法回顾性分析2003年3月至2007年12月收治的71例中枢神经细胞瘤患者的诊断和治疗情况。结果肿瘤平均大小为40cm^2；中位随访时间为22个月。22个月的存活率和局部控制率分别为95．8％（68／71）和95．6％（65／68）。结论中枢神经细胞瘤治疗效果仍较满意。手术＋术后放疗对肿瘤局部的控制起到了较好的作用。

关键词：神经细胞瘤诊断治疗

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BESⅢ中的卡尔曼径迹拟合(英文)

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核电子学与探测技术 2007年第4期27卷 658-664,650页

作者：王大勇何康林李卫国马秋梅马想王亮亮王继科邓子艳尤郑昀毛泽普文硕频边渐鸣孙永昭孙胜森朱永生刘怀民刘春秀李卫东李海波李刚伍灵慧张长春张令张建勇邹佳恒邱进发何苗张学尧张瑶季晓斌杨明苑长征冒亚军俞国威莫晓虎袁野曹国富黄彬谢宇广臧石磊中国科学院高能物理研究所北京100049 北京大学北京100871 湖南大学长沙410082 山东大学济南250100

基于卡尔曼滤波方法,开发了漂移室径迹拟合算法。在软件中仔细处理多次散射、能量损失等物质效应,处理磁场不均匀性的影响,考虑重力下垂、单丝空间分辨和其他刻度因素。描述了漂移室径迹拟合软件包的设计实现、主要算法,并用模拟样本对... 详细信息

基于卡尔曼滤波方法,开发了漂移室径迹拟合算法。在软件中仔细处理多次散射、能量损失等物质效应,处理磁场不均匀性的影响,考虑重力下垂、单丝空间分辨和其他刻度因素。描述了漂移室径迹拟合软件包的设计实现、主要算法,并用模拟样本对算法及其相关参数进行了优化。对其性能进行的研究表明,拟合结果的各种分布是合理的,本软件对径迹参数、误差矩阵以及动量分辨率都有所改善,对低动量的强子径迹更为明显,从而对BESⅢ物理结果有较为显著的影响。

关键词：径迹拟合卡尔曼滤波北京谱仪Ⅲ 漂移室

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二维材料最新研究进展

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物理化学学报 2021年第12期37卷 1-151页

作者：常诚陈伟陈也陈永华陈雨丁峰樊春海范红金范战西龚成宫勇吉何其远洪勋胡晟胡伟达黄维黄元季威李德慧李连忠李强林立凌崇益刘鸣华刘楠刘庄 Kian Ping Loh 马建民缪峰彭海琳邵明飞宋礼苏邵孙硕谭超良唐智勇王定胜王欢王金兰王欣王欣然 Andrew T.S.Wee 魏钟鸣吴宇恩吴忠帅熊杰熊启华徐伟高尹鹏曾海波曾志远翟天佑张晗张辉张其春张铁锐张翔赵立东赵美廷赵伟杰赵运宣周凯歌周兴周喻朱宏伟张华刘忠范 Institute of Science and Technology Austria Am Campus 13400 KlosterneuburgAustria Department of Chemistry National University of Singapore3 Science Drive 3117543Singapore Department of Chemistry The Chinese University of Hong KongShatinNew TerritoriesHong KongChina Key Laboratory of Flexible Electronics and Institute of Advanced Materials Nanjing Tech UniversityNanjing 211816China School of life Sciences Shanghai UniversityShanghai 200444China Centre for Multidimensional Carbon Materials Institute for Basic ScienceUlsan 44919Korea School of Chemistry and Chemical Engineering Shanghai Jiao Tong UniversityShanghai 200240China School of Physical and Mathematical Sciences Nanyang Technological UniversitySingapore 637371Singapore Department of Chemistry City University of Hong KongKowloonHong KongChina Department of Electrical and Computer Engineering and Quantum Technology Center University of MarylandCollege ParkMaryland 20742USA School of Materials Science and Engineering Beihang UniversityBeijing 100191China Department of Materials Science and Engineering City University of Hong KongKowloonHong KongChina Center of Advanced Nanocatalysis(CAN) Hefei National Laboratory for Physical Sciences at the MicroscaleDepartment of Applied ChemistryUniversity of Science and Technology of ChinaHefei 230026China College of Chemistry and Chemical Engineering State Key Laboratory of Physical Chemistry of Solid SurfacesCollaborative Innovation Center of Chemistry for Energy Materials(iChEM)Xiamen UniversityXiamen361005Fujian ProvinceChina State Key Laboratory of Infrared Physics Shanghai Institute of Technical PhysicsChinese Academy of SciencesShanghai 200083China Advanced Research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing100081China Beijing Key Laboratory of Optoelectronic Functional Materials&Micro-Nano Devices Department of PhysicsRenmin University of ChinaBeijing 100872China School of Optical and Electronic Information Wuhan National Laboratory

Research on two-dimensional(2D) materials has been explosively increasing in last seventeen years in varying subjects including condensed matter physics, electronic engineering, materials science, and chemistry since the mechanical exfoliation of graphene in 2004. Starting from graphene, 2D materials now have become a big family with numerous members and diverse categories. The unique structural features and physicochemical properties of 2D materials make them one class of the most appealing candidates for a wide range of potential applications. In particular, we have seen some major breakthroughs made in the field of 2D materials in last five years not only in developing novel synthetic methods and exploring new structures/properties but also in identifying innovative applications and pushing forward commercialisation. In this review, we provide a critical summary on the recent progress made in the field of 2D materials with a particular focus on last five years. After a brief backgroundintroduction, we first discuss the major synthetic methods for 2D materials, including the mechanical exfoliation, liquid exfoliation, vapor phase deposition, and wet-chemical synthesis as well as phase engineering of 2D materials belonging to the field of phase engineering of nanomaterials(PEN). We then introduce the superconducting/optical/magnetic properties and chirality of 2D materials along with newly emerging magic angle 2D superlattices. Following that, the promising applications of 2D materials in electronics, optoelectronics, catalysis, energy storage, solar cells, biomedicine, sensors, environments, etc. are described sequentially. Thereafter, we present the theoretic calculations and simulations of 2D materials. Finally, after concluding the current progress, we provide some personal discussions on the existing challenges and future outlooks in this rapidly developing field.

关键词： Two-dimensional materials Transition metal dichalcogenides Phase engineering of nanomaterials Electronics Optoelectronics Catalysis Energy storage and conversion

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一种特殊的北京谱仪事例起始时间计算方法介绍

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核电子学与探测技术 2007年第3期27卷 491-496页

作者：张令毛泽普曾云马想马秋梅王亮亮王纪科邓子艳尤郑昀文硕频边渐鸣孙永昭孙胜森朱永生刘怀民刘春秀伍灵慧李卫东李海波李刚张长春张建勇邹佳恒邱进发何康林何苗张学尧张瑶季晓斌杨明苑长征冒亚军俞国威莫晓虎袁野曹国富黄彬谢宇广臧石磊湖南大学物理与微电子科学学院长沙410082 中国科学院高能物理研究所北京100049 北京大学物理学院技术物理系北京100871 山东大学物理系济南250100

阐述了一种特殊的北京谱仪III(BESIII)事例起始时间计算方法的基本原理和算法结构,利用漂移室击中信息寻找径迹段,通过对径迹段做直线拟合,最后计算BESIII事例起始时间。并通过蒙特卡罗数据进行调试和检验,证明了该算法的可靠性。

关键词：北京谱仪III 事例起始时间主漂移室直线拟合

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Atlas of dynamic spectra of fast radio burst FRB 20201124A

引用

Chinese Physics B 2023年第2期32卷 1-4页

作者：王铂钧胥恒姜金辰徐江伟牛佳瑞陈平李柯伽张冰朱炜玮东苏勃张春风傅海周德江张永坤王培冯毅李晔李冬子鲁文宾杨元培 RNCaballero 蔡策陈卯蒸戴子高艾力·伊沙木丁甘恒谦韩金林郝龙飞黄玉祥姜鹏李承奎李菂李辉李新乔李志玄刘志勇罗睿门云鹏牛晨辉彭文溪钱磊宋黎明孙京海王发印汪敏王娜王维扬吴雪峰肖硕熊少林徐永华徐仁新杨俊杨轩姚蕊易祁彬岳友岭于东俊余文飞袁建平张彬彬张松波张双南赵一郑伟康朱岩邹金航 Kavli Institute for Astronomy and Astrophysics Peking UniversityBeijing 100871China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China Department of Astronomy Peking UniversityBeijing 100871China University of Chinese Academy of Sciences Chinese Academy of SciencesBeijing 100049China Department of Particle Physics and Astrophysics Weizmann Institute of ScienceRehovot 76100Israel Nevada Center for Astrophysics University of NevadaLas VegasNV 89154USA Department of Physics and Astronomy University of NevadaLas VegasNV 89154USA Department of Physics&Astronomy University of IowaIowa CityIA 52242USA Zhejiang Laboratory HangzhouZhejiang 311121China Purple Mountain Observatory Chinese Academy of SciencesNanjing 210008China TAPIR Walter Burke Institute for Theoretical PhysicsMail Code 350-17CaltechPasadenaCA 91125USA Department of Astronomy University of California at BerkeleyBerkeleyCA 94720USA South-Western Institute For Astronomy Research Yunnan UniversityYunnan 650504China Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Xinjiang Astronomical Observatory Chinese Academy of SciencesUrumqi 830011China University of Science and Technology of China Anhui 230026China Yunnan Observatories Chinese Academy of SciencesKunming 650216China Guizhou Normal University Guiyang 550001China CSIRO Space and Astronomy EppingNSW 1710Australia Max-Planck institut fur Radioastronomie Auf Dem HugelBonn53121Germany School of Astronomy and Space Science Nanjing UniversityNanjing 210093China State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China Shanghai Astronomical Observatory Chinese Academy of SciencesShanghai 200030China Key Laboratory of Modern Astronomy and Astrophysics(Nanjing University) Ministry of EducationNanjing 210093China College of Physics Hebei Normal UniversityShijiazhuang 050024China

Fast radio bursts(FRBs) are highly dispersed millisecond-duration radio bursts,[1,2]of which the physical origin is still not fully understood. FRB 20201124A is one of the most actively repeating FRBs. In this paper, we present the collection of 1863 burst dynamic spectra of FRB 20201124A measured with the Five-hundred-meter Aperture Spherical radio Telescope(FAST). The current collection, taken from the observation during the FRB active phase from April to June 2021, is the largest burst sample detected for any FRB so far. The standard PSRFITs format is adopted, including dynamic spectra of the burst, and the time information of the dynamic spectra, in addition, mask files help readers to identify the pulse positions are also provided. The dataset is available in Science Data Bank, with the link https://***/10.57760/sciencedb.j00113.00076.

关键词： fast radio burst FAST

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