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On-surface synthesis and edge states of NBN-doped zigzag graphene nanoribbons

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Nano Research 2023年第7期16卷 10436-10442页

作者： Xiao Chang li Huang Yixuan Gao Yubin fu Ji ma Huan Yang Junzhi liu Xiaoshuai fu Xiao lin xinliang Feng Shixuan Du Hong-Jun Gao University of Chinese Academy of Sciences Beijing 100190China Beijing National Center for Condensed matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China Center for Advancing Electronics Dresden(CfAED)and Faculty of Chemistry and Food Chemistry Technische Universität DresdenDresden D-01069Germany max Planck Institute of Microstructure Physics Weinberg 2Halle 06120Germany Department of Chemistry State Key Laboratory of Synthetic ChemistryThe University of Hong KongHong Kong 999077China Songshan Lake materials Laboratory Dongguan 523808China

Zigzag graphene nanoribbons(ZGNRs)with spin-polarized edge states have potential applications in carbon-based *** electronic structure of ZGNRs can be effectively tuned by different widths or dopants,which requires delicately designed ***,we report the successful synthesis of ZGNR with a width of eight carbon zigzag lines and nitrogen-boronnitrogen(NBN)motifs decorated along the zigzag edges(NBN-8-ZGNR)on Au(111)surface,which starts from a specially designed U-shaped monomer with preinstalled NBN units at the zigzag ***-bond-resolved non-contact atomic force microscopy(nc-AFM)imaging confirms the zigzag-terminated edges and the existence of NBN *** electronic states distributed along the zigzag edges have been revealed after a silicon-layer intercalation at the interface of NBN-8-ZGNR and Au(111).Our work enriches the ZGNR family with a new dopant and larger width,which provides more candidates for future carbonbased nanoelectronic and spintronic applications.

关键词： zigzag graphene nanoribbons nitrogen-boron-nitrogen(NBN)dopant edge states scanning tunneling microscopy(STM) non-contact atomic force microscopy(nc-AFM) density functional theory(DFT)calculations

太极拳与健身操运动对原发性高血压患者自主神经系统的影响

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中华高血压杂志（中英文） 2024年第8期32卷 763-771页

作者：付嘉豪陈在浩刘林利房辉马雨鑫崔美泽张建伟刘明宇吕韶钧北京师范大学体育与运动学院北京100875 浙江广厦建设职业技术大学体育学院中国劳动关系学院

目的观察不同运动干预方式对原发性高血压(EH)患者自主神经系统(ANS)的影响。方法采取随机对照试验设计。2022年3月于北京西罗园社区服务中心和山东淄博万杰康复医院招募102例1、2级EH患者,按1∶1∶1的比例随机分为太极拳组(n=34)、健... 详细信息

目的观察不同运动干预方式对原发性高血压(EH)患者自主神经系统(ANS)的影响。方法采取随机对照试验设计。2022年3月于北京西罗园社区服务中心和山东淄博万杰康复医院招募102例1、2级EH患者,按1∶1∶1的比例随机分为太极拳组(n=34)、健身操组(n=34)与对照组(n=34);太极拳组和健身操组分别进行太极拳和健身操运动,共12周,3次/周,60 min/次,运动强度控制在40%~60%储备心率,对照组不进行任何运动干预。观察干预前后三组患者血压变异性(BPV)与心率变异性(HRV)相关指标的变化。结果最终80例研究对象完成所有试验流程并纳入分析(太极拳组28例,健身操组30例,对照组22例)。与干预前比较,太极拳组干预后BPV指标24 h收缩压标准差(24hSBPSD)、24 h收缩压变异系数(24hSBPCV)、24 h舒张压标准差(24hDBPSD)、24 h舒张压变异系数(24hDBPCV)下降(P50 ms的个数占总心跳次数的百分比(pNN50)、LF/HF变化无统计学意义(P>0.05)。与干预前比较,健身操组干预后,BPV指标24hSBPSD、24hSBPCV、24hDBPSD、24hDBPCV下降(P0.05)。与干预前比较,对照组干预后BPV与HRV各项指标变化无统计学意义(均P>0.05)。与对照组相比,太极拳组干预后24hSBPSD、24hDBPSD、24hDBPCV更低(P0.05)。结论太极拳与健身操运动可以有效降低EH患者的BPV,提高HRV。两种运动对改善EH患者的ANS功能具有积极效果。

关键词：太极拳健身操原发性高血压心率变异性血压变异性随机对照试验

CoS_(2)nanowires supported graphdiyne for highly efficient hydrogen evolution reaction

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Journal of Energy Chemistry 2021年第9期30卷 272-278页

作者： Wangjing Xie Kang liu Guodong Shi xinliang fu Xiaojie Chen Zixiong Fan Min liu Mingjian Yuan Mei Wang Key Laboratory of marine Chemistry Theory and Technology (Ministry of Education)College of Chemistry and Chemical EngineeringOcean University of ChinaQingdao 266100China Key Laboratory of Advanced Energy materials Chemistry (Ministry of Education)Renewable Energy Conversion and Storage Center(RECAST)College of ChemistryNankai University300071 TianjinChina School of Physics and Electronics State Key Laboratory of Powder MetallurgyCentral South UniversityChangsha 410083China College of Science Henan University of TechnologyZhengzhou 450001China

Transition metal sulfides are an important category for hydrogen evolution reaction(HER).However,only few edge unsaturated sulfurs functionalize as catalytic sites,which has dramatically limited the catalytic activity and *** this work,planar unsaturated sulfurs in(211)plane of the CoS_(2)nanowires have been successfully activated through constructing Graphdiyne-CoS_(2)heterojunction *** corresponding electrons transfer energy barriers for these planar unsaturated sulfurs have been significantly diminished,which are induced by the synergetic effects of the sp~1 hybridized carbons and unsaturated planar *** addition,DFT simulations reveal the synergetic effects of the sp~1 hybridized carbons and unsaturated planar sulfurs can promote electron transfer kinetics of the key step,VolmerHeyrovsky step,of the *** expected,the Graphdiyne-CoS_(2)heterojunction nanocomposites exhibit superior HER catalytic performance with low overpotential of 97 mV at 10 ma cm^(-2),and the Tafel slope of 56 mV dec^(-1).furthermore,the heterojunction shows outstanding stability as well due to the pr tection of the Graphdiyne(GDY).The approach thus paves the way for the further efficient transition metal disulfides catalyst manufactures.

关键词： Graphdiyne Electrocatalysts Hydrogen evolution reaction DFT simulation 2D carbon material

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马万千基于脏腑相关理论辨治糖尿病思想经验

中国老年保健医学 2024年第1期22卷 134-137页

作者：孙颂歌刘明宇张宏阳马万千邱新萍左瑞菊北京中医医院顺义医院 101300 北京中医药大学第三临床医学院 100029 北京市顺义区牛栏山社区卫生服务中心 101300

糖尿病归属于中医消渴范畴,为临床常见病,消渴首见于《素问·奇病论》。马万千主任医师是全国基层老中医传承工作室指导老师,从事中医临床工作40余年,在消渴诊治方面具有独到见解。马万千基于脏腑相关理论,根据肺胃、肺肾、肝脾、肝肾... 详细信息

糖尿病归属于中医消渴范畴,为临床常见病,消渴首见于《素问·奇病论》。马万千主任医师是全国基层老中医传承工作室指导老师,从事中医临床工作40余年,在消渴诊治方面具有独到见解。马万千基于脏腑相关理论,根据肺胃、肺肾、肝脾、肝肾、脾胃等脏腑相关病变进行脏腑同治,指出消渴初期多为阴虚燥热,日久则耗伤气血津液,进而阴损及阳,致使阴阳两虚,主张将糖尿病分为气阴两虚、肺胃燥热、肝肾阴虚、肝郁脾虚、脾胃虚弱、脾虚胃热、阴阳两虚7个证型,并结合湿热、热毒、痰浊、瘀血兼证进行论治,辨证选用生脉饮合消渴方、益胃汤、六味地黄丸、四逆散、补中益气汤、三黄清幽汤、右归饮等为主方,随证加减,临床疗效显著。本文对马万千辨治糖尿病的思想及经验进行系统总结及阐述,并附验案一则,以期为糖尿病的辨治提供新思路。

关键词：糖尿病消渴脏腑相关理论名老中医经验

Insight-HXMT observations of the first binary neutron star merger GW170817

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Science China(Physics,Mechanics & Astronomy) 2018年第3期61卷 26-33页

作者： TiPei li Shaolin Xiong ShuangNan Zhang FangJun Lu liMing Song XueLei Cao Zhi Chang Gang Chen li Chen TianXiang Chen Yong Chen YiBao Chen YuPeng Chen Wei Cui WeiWei Cui JingKang Deng YongWei Dong YuanYuan Du MinXue fu GuanHua Gao He Gao Min Gao mingyu Ge YuDong Gu Ju Guan ChengCheng Guo DaWei Han Wei Hu Yue Huang Jia Huo ShuMei Jia LuHua Jiang WeiChun Jiang Jing Jin YongJie Jin Bing li ChengKui li Gang li maoShun li Wei li Xian li XiaoBo li XuFang li YanGuo li ZiJian li ZhengWei li XiaoHua liang JinYuan liao CongZhan liu GuoQing liu HongWei liu ShaoZhen liu XiaoJing liu Yuan liu YiNong liu Bo Lu XueFeng Lu Tao Luo Xiang ma Bin Meng Yi Nang JianYin Nie Ge OU JinLu Qu Na Sai liang Sun Yin Tan lian Tao WenHui Tao Youli Tuo GuoFeng Wang HuanYu Wang Juan Wang WenShuai Wang YuSa Wang XiangYang Wen BoBing WU Mei Wu GuangCheng Xiao He Xu YuPeng Xu linli Yan JiaWei Yang Sheng Yang YanJi Yang AiMei Zhang ChunLei Zhang ChengMo Zhang Fan Zhang HongMei Zhang Juan Zhang Qiang Zhang Shu Zhang Tong Zhang Wei Zhang WanChang Zhang WenZhao Zhang Yi Zhang Yue Zhang YiFei Zhang YongJie Zhang Zhao Zhang Ziliang Zhang HaiSheng Zhao Jianling Zhao XiaoFan Zhao ShiJie Zheng Yue Zhu YuXuan Zhu Changlin Zou Key Laboratory of Particle Astrophysics Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China Department of Physics Tsinghua University Beijing 100084 China University of Chinese Academy of Sciences Chinese Academy of Sciences Beijing 100049 China Department of Astronomy Beijing Normal University Beijing 100088 China Department of Engineering Physics Tsinghua University Beijing 100084 China

Finding the electromagnetic （EM） counterpart of binary compact star merger, especially the binary neutron star （BNS） merger, is critically important for gravitational wave （GW） astronomy, cosmology and fundamental physics. On Aug. 17, 2017, Advanced liGO and Fermi/GBM independently triggered the first BNS merger, GW170817, and its high energy EM counterpart, GRB 170817A, respectively, resulting in a global observation campaign covering gamma-ray, X-ray, UV, optical, IR, radio as well as neutrinos. The High Energy X-ray telescope （HE） onboard Insight-HXMT （Hard X-ray Modulation Telescope） is the unique high-energy gamma-ray telescope that monitored the entire GW localization area and especially the optical counterpart （SSS17a/AT2017gfo） with very large collection area （M000 cm2） and microsecond time resolution in 0.2-5 MeV. In addition, Insight-HXMT quickly implemented a Target of Opportunity （TOO） observation to scan the GW localization area for potential X-ray emission from the GW source. Although Insight-HXMT did not detect any significant high energy （0.2-5 MeV） radiation from GW170817, its observation helped to confirm the unexpected weak and soft nature of GRB 170817A. Meanwhile, Insight-HXMT/HE provides one of the most stringent constraints （-10-7 to 104 erg/cm2/s） for both GRB170817A and any other possible precursor or extended emissions in 0.2-5 MeV, which help us to better understand the properties of EM radiation from this BNS merger. Therefore the observation of Insight-HXMT constitutes an important chapter in the full context of multi-wavelength and multi-messenger observation of this historical GW event.

关键词： GW170817 BNS merger gravitational wave electromagnetic counterpart

Overview to the Hard X-ray Modulation Telescope (Insight-HXMT) Satellite

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Science China(Physics,Mechanics & Astronomy) 2020年第4期63卷 2-19页

作者： Shuang-Nan Zhang TiPei li FangJun Lu liMing Song YuPeng X u CongZhan liu Yong Chen XueLei Cao QingCui Bu Zhi Chang Gang Chen li Chen TianXiang Chen YiBao Chen YuPeng Chen Wei Cui WeiWei Cui JingKang Deng YongWei Dong Yuan Yuan Du MinXue fu GuanHua Gao He Gao Min Gao mingyu Ge YuDong Gu Ju Guan Can Gungor ChengCheng Guo DaWei Han Wei Hu Yue Huang Jia Huo ShuMei Jia LuHua Jiang WeiChun Jiang Jing Jin YongJie Jin Bing li ChengKui li Gang li maoShun li Wei li Xian li XiaoBo li XuFang li YanGuo li ZiJian li ZhengWei li XiaoHua liang JinYuan liao GuoQing liu HongWei liu ShaoZhen liu XiaoJing liu Yuan liu YiNong liu Bo Lu XueFeng Lu Tao Luo Xiang ma Bin Meng Yi Nang JianYin Nie Ge Ou JinLu Qu Na Sai RenCheng Shang GuoHong Shen liang Sun Ying Tan lian Tao Youli Tuo Chen Wang ChunQin Wang GuoFeng Wang HuanYu Wang Juan Wang WenShuai Wang YuSa Wang XiangYang Wen BaiYang Wu BoBing Wu Mei Wu GuangCheng Xiao Shaolin Xiong linli Yan JiaWei Yang Sheng Yang YanJi Yang QiBin Yi Bin Yuan AiMei Zhang ChunLei Zhang ChengMo Zhang Fan Zhang HongMei Zhang Juan Zhang Qiang Zhang ShenYi Zhangs Shu Zhang Tong Zhang WanChang Zhang Wei Zhang WenZhao Zhang Yi Zhang YiFei Zhang YongJie Zhang Yue Zhang Zhao Zhang Zhi Zhang Ziliang Zhang HaiSheng Zhao XiaoFan Zhao ShiJie Zheng JianFeng Zhou YuXuan Zhu Yue Zhu Renlin Zhuang Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China Department of Astronomy Tsinghua UniversityBeijing 100084China Department of Physics Tsinghua UniversityBeijing 100084China Department of Astronomy Beijing Normal UniversityBeijing 100088China Department of Engineering Physics Tsinghua UniversityBeijing 100084China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China National Space Science Center Chinese Academy of SciencesBeijing 100190China

As China’s first X-ray astronomical satellite, the Hard X-ray Modulation Telescope (HXMT), which was dubbed as Insight-HXMT after the launch on June 15, 2017, is a wide-band(1-250 ke V) slat-collimator-based X-ray astronomy satellite with the capability of all-sky monitoring in 0.2-3 Me V. It was designed to perform pointing, scanning and gamma-ray burst(GRB)observations and, based on the Direct Demodulation Method (DDM), the image of the scanned sky region can be *** we give an overview of the mission and its progresses, including payload, core sciences, ground calibration/facility, ground segment, data archive, software, in-orbit performance, calibration, background model, observations and some preliminary results.

关键词： X-and γ-ray telescopes and instrumentation neutron stars black holes X-ray binaries γ-ray bursts

钠冷快堆先进建模与高性能粒子输运数值模拟进展

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原子能科学技术 2022年第11期56卷 2395-2407页

作者：周培德薛小刚吴明宇王事喜吴宗芸霍兴凯高鑫钊张强付元光周生诚刘晨马建明中国原子能科学研究院北京102413 中国工程物理研究院高性能数值模拟软件中心北京100088

钠冷快堆高性能数值模拟基于先进建模技术、大规模并行计算技术,实现大型池式快堆多物理过程精细化分析计算,包括池式结构快堆堆本体范围中子和γ射线深穿透计算,堆芯范围pin-by-pin精细化功率分布计算及输运-燃耗耦合计算,堆芯核-热子... 详细信息

钠冷快堆高性能数值模拟基于先进建模技术、大规模并行计算技术,实现大型池式快堆多物理过程精细化分析计算,包括池式结构快堆堆本体范围中子和γ射线深穿透计算,堆芯范围pin-by-pin精细化功率分布计算及输运-燃耗耦合计算,堆芯核-热子通道耦合计算。建立快堆高性能多物理耦合计算系统,并实现可视化输入和输出,可快速获得堆芯或堆本体范围更为清晰的物理图像,为反应堆设计迭代、整体方案优化等提供支撑。

关键词：钠冷快堆高性能数值模拟先进建模并行计算耦合

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5 - 20 Isochronous mass Spectrometry with Two Time-of-Flight Detectors at CSRe

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IMP & HIRFL Annual Report 2013年第1期 221-222页

作者： Wang Meng Xu Hushan Zhang Yuhu Shuai Peng Zhang Wei Tu Xiaolin Xu Xing Yu. A. litvinov K. Blaum Chen Ruijiu Chen Xiangcheng fu Chaoyi Ge Zhuang Gao Bingshui Hu Zhengguo Huang Wenjia S. A. litvinov liu Dawei ma Xinwen mao Ruishi Mei Bo Sun Baohua Xia Jiawen Xiao Guoqing Xing Yuanming T. Yarnaguchi Yan xinliang Yang Jiancheng Yuan Youjin Zeng Qi Zhang Xueying Zhao Hongwei Zhao Tieeheng Zhou Xiaohong University of Chinese Academy of Sciences Beijing 100049 China. GSI Helmholtzzentrum fur Schwerionenforschung Planckstraae 1 64291 Darmstadt Germany. max-Planck-Institutftir Kernphysik Saupfercheckweg 1 69117 Heidelberg Germany. School of Physics and Nuclear Energy Engineering Beihang University Beijing 100191 China. Departmentof Physics Saitama University Saitama 338-8570 Japan.

饲养密度对育成期山麻鸭肠道健康和盲肠微生物菌群结构的影响

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中国兽医学报 2023年第9期43卷 1948-1956,1963页

作者：林佩仪梁宇侯展鹏王金辉王海悦张续勐江丹莉李婉雁刘文俊曹楠许丹宁田允波黄运茂李秀金付新亮仲恺农业工程学院动物科技学院广东省水禽健康养殖重点实验室广东广州510225

旨在探究不同饲养密度对山麻鸭肠道黏膜组织结构、消化酶活性、肠道炎性损伤及盲肠微生物菌群结构的影响。选用180只56日龄育成期山麻鸭随机分为LSD(低密度,n=30)、MSD(中密度n=60)和HSD(高密度,n=90)3个试验组,每组3个生物学重复,饲养... 详细信息

旨在探究不同饲养密度对山麻鸭肠道黏膜组织结构、消化酶活性、肠道炎性损伤及盲肠微生物菌群结构的影响。选用180只56日龄育成期山麻鸭随机分为LSD(低密度,n=30)、MSD(中密度n=60)和HSD(高密度,n=90)3个试验组,每组3个生物学重复,饲养密度分别为5,10和15只/m2,分别于试验第3,6和9周采集各组血清和空肠组织测定相关指标,并研究盲肠内容物微生物组成。结果表明,试验第9周HSD组山麻鸭的空肠绒毛长度及绒隐比显著低于LSD组(P<0.05),且HSD组空肠组织紧密连接蛋白OCLN和ZO1基因的mRNA表达水平在试验第9周也显著降低(P<0.01);此外,HSD组空肠黏膜中的α-淀粉酶、糜蛋白酶活性也显著降低(P<0.05)。试验第6和9周HSD组血清LPS水平显著高于LSD组,并且炎性因子测定结果显示,HSD组血清中的IL-1β、IL-8和TNF-α水平在试验第6周时显著升高(P<0.05),另外,试验第3周HSD组空肠组织中的IL-8、TNF-α、TLR-4、MyD88和NF-κB炎性因子及相关通路基因表达水平均显著高于LSD组和MSD组(P<0.01)。此外,HSD组的盲肠微生物多样性降低,并且梭杆菌属等有害菌群丰富增加,微生物菌群结构失衡。以上结果表明,较高的饲养密度会降低空肠组织中绒毛长度、绒隐比、紧密连接蛋白基因表达水平和部分消化酶活性。同时,血清中的LPS和炎性因子水平以及空肠组织中炎性因子和相关通路基因表达水平升高,并引起盲肠菌群结构失衡,从而影响鸭的肠道健康并导致肠道功能受损。

关键词：饲养密度肠道健康绒隐比炎性因子菌群结构