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Nucleosynthesis yields from different mass stars

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Progress in Natural Science:Materials International 2002年第1期 12-18页

作者： liANG Yanchun and zhao {2.(national Astronomical observatories, chinese academy of sciences, beijing 100012, China) national Astronomical observatories Chinese Academy of Sciences Beijing 100012 China

Stellar nucleosynthesis yield is a vital factor of galactic chemical evolution model. With different yields, various evolutionary behavior of elements can be predicted, hence different scenarios of galactic chemical evolution can be shown. Investigators calculated different yields adopting different parameters of stellar evolution and nucleosynthesis. The corresponding parameters and the resulting yields of elements are compared for low-, intermediate-mass stars and massive stars, so that these analyses can provide valuable information and guidance to stellar nucleosynthesis and galactic chemical evolution studies.

关键词： nucleosynthesis yields galactic chemical evolution different mass stars.

Roadmap for rechargeable batteries:present and beyond

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Science China Chemistry 2024年第1期67卷 13-42页

作者： Sen Xin Xu Zhang lin Wang Haijun Yu Xin Chang Yu-Ming zhao Qinghai Meng Pan Xu Chen-Zi zhao Jiahang Chen Huichao Lu Xirui Kong Jiulin Wang Kai Chen gang Huang Xinbo Zhang Yu Su Yao Xiao Shu-Lei Chou Shilin Zhang Zaiping Guo Aobing Du Guanglei Cui Gaojing Yang Qing zhao liubing Dong Dong Zhou Feiyu Kang Hu hong Chunyi Zhi Zhizhang Yuan Xianfeng li Yifei Mo Yizhou Zhu Dongfang Yu Xincheng Lei Jianxiong zhao Jiayi Wang Dong Su Yu-Guo Guo Qiang Zhang Jun Chen li-Jun Wan CAS Key Laboratory of Molecular Nanostructure and Nanotechnology CAS Research/Education Center for Excellence in Molecular SciencesBeijing National Laboratory for Molecular Sciences(BNLMS)Institute of ChemistryChinese Academy of Sciences(CAS)Beijing 100190China University of chinese academy of sciences.beijing 100049 China Institute of Advanced Battery Materials and Devices Faculty of Materials and ManufacturingBeijing University of TechnologyBeijing 100124China Key Laboratory of Advanced Functional Materials Ministry of EducationBeijing University of TechnologyBeijing 100124China beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China State Key Laboratory of Chemistry and Utilization of Carbon-Based Energy Resources College of ChemistryXinjiang UniversityUrumqi 830046China Department of Chemical Engineering Shanghai Jiao Tong UniversityShanghai 200240China State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChangchun 130022China Institute for Carbon Neutralization College of Chemistry and Materials EngineeringWenzhou UniversityWenzhou 325035China School of Chemical Engineering and Advanced Materials The University of AdelaideAdelaide 5000Australia Qingdao Industrial Energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101China Frontiers Science Center for New Organic Matter Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education)College of ChemistryNankai UniversityTianjin 300071China College of Chemistry and Materials Science Jinan UniversityGuangzhou 511443China Tsinghua Shenzhen International Graduate School Tsinghua UniversityShenzhen 518055China Department of Materials Science and Engineering City University of Hong KongHong Kong 999077China Division of Energy Storage Dalian National Laboratory for Clean Energy(DNL)Dalian Institute of Chem

Rechargeable batteries currently hold the largest share of the electrochemical energy storage market,and they play a major role in the sustainable energy transition and industrial decarbonization to respond to global climate *** to the increased popularity of consumer electronics and electric vehicles,lithium-ion batteries have quickly become the most successful rechargeable batteries in the past three decades,yet growing demands in diversified application scenarios call for new types of rechargeable *** efforts are made to developing the next-generation post-li-ion rechargeable batteries,which include,but are not limited to solid-state batteries,lithium–sulfur batteries,sodium-/potassium-ion batteries,organic batteries,magnesium-/zinc-ion batteries,aqueous batteries and flow *** the great achievements,challenges persist in precise understandings about the electrochemical reaction and charge transfer process,and optimal design of key materials and interfaces in a *** roadmap tends to provide an overview about the current research progress,key challenges and future prospects of various types of rechargeable *** computational methods for materials development,and characterization techniques will also be discussed as they play an important role in battery research.

关键词： energy storage rechargeable batteries battery materials electrochemistry

Electronic Correlation and Pseudogap-like Behavior of High-Temperature Superconductor La_(3)Ni_(2.O_(7)

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chinese Physics Letters 2024年第8期41卷 82-93页

作者： Yidian li Xian Du Yantao Cao Cuiying Pei Mingxin Zhang Wenxuan zhao Kaiyi Zhai Runzhe Xu Z{2.kai liu Zhiwei li Jinkui zhao gang li Yanpeng Qi Hanjie Guo Yulin Chen Lexian Yang State Key Laboratory of Low Dimensional Quantum Physics Department of PhysicsTsinghua UniversityBeijing 100084China Key Lab for Magnetism and Magnetic Materials of the Ministry of Education Lanzhou UniversityLanzhou 730000China Songshan Lake Materials Laboratory Dongguan 523808China School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210China ShanghaiTech Laboratory for Topological Physics Shanghai 200031China Shanghai Key Laboratory of High-Resolution Electron Microscopy ShanghaiTech UniversityShanghai 201210China Department of Physics Clarendon LaboratoryUniversity of OxfordParks RoadOxford OX13PUUK Frontier Science Center for Quantum Information Beijing 100084China

High-temperature superconductivity(HTSC)remains one of the most challenging and fascinating mysteries in condensed matter ***,superconductivity with transition temperature exceeding liquid-nitrogen temperature is discovered in La_(3)Ni_(2.O_(7) at high pressure,which provides a new platform to explore the unconventional *** this work,using high-resolution angle-resolved photoemission spectroscopy and ab initio calculation,we systematically investigate the electronic structures of La_(3)Ni_(2.O_(7) at ambient *** experiments are in nice agreement with ab initio calculations after considering an orbital-dependent band renormalization *** strong electron correlation effect pushes a flat band of d_(z^(2.)𝑧2.orbital component below the Fermi level(E_(F)),which is predicted to locate right at E_(F) under high ***,the d_(x^(2.−y^(2.) band shows pseudogap-like behavior with suppressed spectral weight and diminished quasiparticle peak near E_(F).Our findings provide important insights into the electronic structure of La_(3)Ni_(2.O_(7),which will shed light on understanding of the unconventional superconductivity in nickelates.

关键词： effect superconductivity orbital

The Design of GECAM Scientific Ground Segment

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Research in Astronomy and Astrophysics 2024年第10期24卷 1-10页

作者： Shijie Zheng liming Song Xiang Ma Ping Wang Rui Qiao Yue Huang Xiaoyun zhao {2.mei Zhang Xiaobo li Mingyu Ge gang Chen Gongxing Sun Wenxi Peng Ce Cai Wei Chen Yanqi Du Dongya Guo bing li Chaoyang li Jianhui li Qingxin li Jing liang Jiacong liu Ge Ou Dongli Shi Jingyan Shi Xinying Song Jin Wang Wenshuai Wang {2. Wu Shuo Xiao Wangchen Xue Min Yao Jianying Ye Kai Zhang Peng Zhang Xiaolu Zhang Yanqiu Zhang Guoying zhao Shiyi zhao Chao Zheng Shaolin Xiong Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of chinese academy of sciences Chinese Academy of SciencesBeijing 100049China Shanghai Astronomical Observatory Chinese Academy of SciencesShanghai 200030China Southwest Jiaotong University Chengdu 611756China Xiangtan University Changsha 411105China Qufu Normal University Qufu 273165China

The Gravitational wave burst high-energy Electromagnetic Counterpart All-sky Monitor(GECAM)is a dedicated mission for monitoring high-energy *** we report the design of the GECAM Scientific Ground Segment(GSGS)in terms of the scientific requirements,including the architecture,the external interfaces,the main function,and *** from the analysis and verification results during the commissioning phase,the GSGS functions well and is able to monitor the status of the payloads,adjust the parameters,develop the scientific observation plans,generate the scientific data products,analyze the data,***,the on-orbit operation and scientific researches of GECAM are guaranteed.

关键词： gravitational waves gamma-rays:general telescopes

Inhibition of hepatitis B virus via selective apoptosis modulation by chinese patent medicine liuweiwuling Tablet

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World Journal of Gastroenterology 2024年第13期30卷 1911-1925页

作者： Fei-lin Ge Yan Yang Lan-Lan Si Yuan-Hua li Meng-Zhen Cao Jun Wang {2.-Fang Bai Zhi-gang Ren Xiao-He Xiao Yan liu Department of chinese Medicine State Key Laboratory of Antiviral DrugsThe First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052Henan ProvinceChina The Fifth Medical Center of chinese PLA General Hospital Beijing 100039China College of Traditional chinese Medicine Chongqing Medical UniversityChongqing 400010China beijing Key Laboratory of Emerging Infectious Diseases Peking University Ditan Teaching HospitalBeijing 100015China Department of Infectious Diseases State Key Laboratory of Antiviral Drugsthe First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052Henan ProvinceChina

BACKGROUND liuweiwuling Tablet(LWWL)is a {2. patent medicine approved for the treatment of chronic inflammation caused by hepatitis B virus(HBV)*** studies have indicated an anti-HBV effect of LWWL,specifically in terms of antigen inhibition,but the underlying mechanism remains *** To investigate the potential mechanism of action of LWWL against *** In vitro experiments utilized three HBV-replicating and three non-HBV-replicating cell *** in vivo experiment involved a hydrodynamic injectionmediated mouse model with HBV *** and metabolomics were used to investigate the underlying mechanisms of action of *** In HepG2.1403F cells,LWWL(0.8 mg/mL)exhibited inhibitory effects on HBV DNA,hepatitis B surface antigen and pregenomic RNA(pgRNA)at rates of 51.36%,2..74%and 50.74%,*** inhibition rates of LWWL(0.8mg/mL)on pgRNA/covalently closed circular DNA in HepG2.1403F,HepG2.2.15 and HepG2.A64 cells were 47.78%,39.51%and 46.74%,*** of transcriptomics and metabolomics showed that the anti-HBV effect of LWWL was primarily linked to pathways related to apoptosis(PI3K-AKT,CASP8-CASP3 and P53 pathways).Apoptosis flow analysis revealed that the apoptosis rate in the LWWL-treated group was significantly higher than in the control group(CG)among HBV-replicating cell lines,including HepG2.2.15(2.92.±1.01%vs 6.68%±2.04%,P2.A64(4.89%±1.2.%vs 8.52.±0.50%,P2.1403F(3.76%±1.40%vs 7.57%±1.35%,Plicating HepG2.cells(5.04%±0.74%vs 5.51%±1.57%,P>0.05),L02.cells(5.49%±0.80%vs 5.48%±1.01%,P>0.05)and LX2.cells(6.2.%±1.54%vs 6.2.%±0.88%,P>0.05).TUNEL staining revealed a significantly higher apoptosis rate in the LWWL-treated group than in the CG in the HBVreplicating mouse model,while no noticeable difference in apoptosis rates between the two groups

关键词： Hepatitis B virus chinese patent medicine Antiviral activity Antiviral mechanism Selective apoptosis

Design, performance and application of a line-imaging velocity interferometer system for any reflector coupled with a streaked optical pyrometer system at the Shenguang-Ⅱ upgrade laser facility

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High Power Laser Science and Engineering 2024年第1期12卷 52-59页

作者： Dawei Yuan Shaojun Wang Huigang Wei Haochen Gu Yu Dai Jiayong Zhong Yutong {2. gang zhao Jie Zhang Key Laboratory of Optical Astronomy National Astronomical ObservatoriesChinese Academy of SciencesBeijingChina Institute of Frontiers in Astronomy and Astrophysics of beijing Normal University BeijingChina beijing national Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijingChina Key Laboratory for Laser Plasmas(MOE)and School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghaiChina Department of Astronomy Beijing Normal UniversityBeijingChina Collaborative Innovation Center of IFSA Shanghai Jiao Tong UniversityShanghaiChina School of Physical sciences University of Chinese Academy of SciencesBeijingChina Songshan Lake Materials Laboratory DongguanChina

The velocity interferometer system for any reflector(VISAR) coupled with a streaked optical pyrometer(SOP) system is used as a diagnostic tool in inertial confinement fusion(ICF) experiments involving equations of state and shock *** validate the process of adiabatically compressing the fuel shell through precise tuning of shocks in experimental campaigns for the double-cone ignition(DCI) scheme of ICF, a compact line-imaging VISAR with an SOP system is designed and implemented at the Shenguang-II upgrade laser facility. The temporal and spatial resolutions of the system are better than 30 ps and 7 μm, respectively. An illumination lens is used to adjust the lighting spot size matching with the target size. A polarization beam splitter and λ/4 waveplate are used to increase the transmission efficiency of our system. The VISAR and SOP work at 660 and 450 nm, respectively, to differentiate the signals from the scattered lights of the drive lasers. The VISAR can measure the shock velocity. At the same time, the SOP system can give the shock timing and relative strength. This system has been used in different DCI campaigns, where the generation and propagation processes of multi-shock are carefully diagnosed.

关键词： double-cone ignition streaked optical pyrometer velocity interferometer system for any reflector

Test observations that search for metal-poor stars with the Guoshoujing Telescope (LAMOST)

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Research in Astronomy and Astrophysics 2010年第8期10卷 753-760页

作者： Hai-Ning li gang {2. Norbert Christlieb A-li Luo Jing-Kun {2. Yong-Heng {2. Jian-Jun Chen Zhong-Rui Bai Key Laboratory of Optical Astronomy National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China Graduate University of chinese academy of sciences Beijing 100049 China Zentrum fur Astronomie der Universitat Heidelberg Landessternwarte Konigstuhl 12 69117 Heidelberg Germany

Metal-deficient stars are regarded as fossils of the early generation of stars and therefore make crucial observational targets related to stellar astrophysics. They provide fundamental information and insights on properties of the very early stage of the chemical history of the Galaxy and have been investigated for decades. The unique design of the Guoshoujing Telescope （LAMOST）, such as its large field and multi-object observational capability, enables it to be an excellent tool for searching for these metal-poor stars in the Milky Way. This work reports the result of test observations which search for metal-poor stars with LAMOST, during which nine candidate metal-poor stars with [Fe/H] ≤ - 1.0 were newly detected based on the low-resolution spectroscopic observations of the LAMOST commissioning data. The sample of stars demonstrates the efficiency of selecting from the input catalog, as well as the ability of LAMOST to enlarge the sample of metal-poor stars in the Milky Way. Furthermore, the sample of stars could be used for future calibrations of the LAMOST stellar pa- rameter pipeline.

关键词： Galaxy stellar content -- surveys -- stars Population Ⅱ

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阿古拉斯流域亚中尺度过程的能量分析

海洋学报 2024年第1期46卷 27-38页

作者：赵若楠李刚何宜军南京信息工程大学海洋科学学院江苏南京210044 自然资源部空间海洋遥感与应用重点实验室北京100081 崂山实验室区域海洋动力学与数值模拟功能实验室山东青岛266237

本文基于(1/48)°MITgcm数值模拟结果,通过频率−波数谱分析等方法分离地转平衡和非地转运动,分析了阿古拉斯流域亚中尺度的分布特征,讨论了其季节性变化的主要影响因素。结果表明,阿古拉斯流域亚中尺度过程具有冬强夏弱的显著季节变化特... 详细信息

本文基于(1/48)°MITgcm数值模拟结果,通过频率−波数谱分析等方法分离地转平衡和非地转运动,分析了阿古拉斯流域亚中尺度的分布特征,讨论了其季节性变化的主要影响因素。结果表明,阿古拉斯流域亚中尺度过程具有冬强夏弱的显著季节变化特征,混合层斜压不稳定是影响该流域亚中尺度季节性差异的主要原因。此外,在涡动能较强的区域,地转平衡运动始终主导亚中尺度过程,季节性变化较小;在涡动能较弱的区域,地转平衡与非地转分量具有明显的季节性差异,局地混合层浅化可能是导致夏季非地转分量贡献增加的主要机制。本文研究结果有助于进一步探究阿古拉斯流域亚中尺度的季节性变化及其主导因素,地转平衡与非地转运动的有效分离加强了我们对海洋多尺度之间能量传递的理解。

关键词：阿古拉斯流域亚中尺度过程地转平衡运动非地转运动过渡尺度

Three Super Active Regions in the Descending Phase of Solar Cycle 2.

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chinese Journal of Astronomy and Astrophysics 2003年第6期3卷 491-494页

作者： hong-Qi Zhang, Xing-Ming Bao, Yin Zhang, Ji-hong {2.u, Shu-Dong Bao, Yuan-Yong Deng, Wei {2., Jie Chen, Jin-Ping Dun, Jiang-Tao Su, Juan Guo, Xiao-Fan Wang, Ke-{2.ang Hu, gang-Hua {2.n and Dong-Guang Wangnational Astronomical observatories, chinese academy of sciences, beijing 100012 national Astronomical observatories CAS NAOC Beijing 100012 China

We analyze the magnetic configurations of three super active regions, NOAA 10484, 10486 and 10488, observed by the Huairou Multi-Channel Solar Telescope (MCST) from 2.03 October 18 to November 4. Many energetic phenomena, such as flares (including a X-2. flare) and coronal mass ejections (CMEs), occurred during this period. We think that strong shear and fast emergence of magnetic flux are the main causes of these events. The question is also of great interest why these dramatic eruptions occurred so close together in the descending phase of the solar cycle.

关键词： Sun: activity - Sun: flares - Sun: magnetic fields