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应更有效地利用国内的研究成果

中华口腔医学杂志 2007年第9期42卷 513-514页

作者：游苏宁中华医学会杂志社北京100710

阅读1883年8月24日出版的《Science》杂志，美国著名物理学家亨利·奥古斯特·罗兰在“为纯科学呼吁”一文中就指出：“科学不是局限于一个城市或国家的事务，而是整个世界的事业，所以我们所有的人在阅读自己国家的期刊时，也必须同时... 详细信息

阅读1883年8月24日出版的《Science》杂志，美国著名物理学家亨利·奥古斯特·罗兰在“为纯科学呼吁”一文中就指出：“科学不是局限于一个城市或国家的事务，而是整个世界的事业，所以我们所有的人在阅读自己国家的期刊时，也必须同时阅读最新的外国科学期刊和最重要的外国协会的学报”。这种对科技期刊的深刻理解使我们觉得找到难觅的知音。

关键词：科学期刊国内物理学家科技期刊阅读外国

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医者典范总编楷模

中华肝脏病杂志 2011年第9期19卷 713-714页

作者：游苏宁中华医学会杂志社

我国著名的心血管病及老年医学专家,北京医院名誉院长,中国共产党的优秀党员,中华医学会系列杂志杰出的总编辑钱贻简教授,因病于2011年7月6日在北京逝世,享年86岁。7月12日清晨,全国各界的代表和中华医学会系列杂志的编辑们前往北京医... 详细信息

我国著名的心血管病及老年医学专家,北京医院名誉院长,中国共产党的优秀党员,中华医学会系列杂志杰出的总编辑钱贻简教授,因病于2011年7月6日在北京逝世,享年86岁。7月12日清晨,全国各界的代表和中华医学会系列杂志的编辑们前往北京医院送别钱老,在告别室中摆放着中华医学会、中华医学会杂

关键词：纪念总编辑钱贻简

A versatile model with three-dimensional triangular lattice for unconventional transport and various topological effects

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National Science Review 2024年第1期11卷 204-214页

作者： Jing-Yang you Gang su Yuan Ping Feng Department of Physics National University of Singapore Kavli Institute for Theoretical Sciences and CAS Center for Excellence in Topological Quantum Computation University of Chinese Academy of Sciences Centre for Advanced 2D Materials National University of Singapore

The finite Berry curvature in topological materials can induce many subtle phenomena, such as the anomalous Hall effect(AHE), spin Hall effect(SHE), anomalous Nernst effect(ANE), non-linear Hall effect(NLHE) and bulk photovoltaic effects. To explore these novel physics as well as their connection and coupling, a precise and effective model should be developed. Here, we propose such a versatile model—a 3D triangular lattice with alternating hopping parameters, which can yield various topological phases,including kagome bands, triply degenerate fermions, double Weyl semimetals and so on. We reveal that this special lattice can present unconventional transport due to its unique topological surface states and the aforementioned topological phenomena, such as AHE, ANE, NLHE and the topological photocurrent effect. In addition, we also provide a number of material candidates that have been synthesized experimentally with this lattice, and discuss two materials, including a non-magnetic triangular system for SHE, NLHE and the shift current, and a ferromagnetic triangular lattice for AHE and ANE. Our work provides an excellent platform, including both the model and materials, for the study of Berry-curvature-related physics.

关键词： three-dimensional triangular lattice different topological phases various topological effects Berry curvature

Astronomic background of global huge earthquakes at beginning of 21st century

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Applied Geophysics 2024年第3期21卷 423-432,616页

作者： Hu Hui su you-Jin Yunnan Observatory Chinese Academy of SciencesKunming 650011China Seismological Bureau of Yunnan Province Kunming 650224China

Since the beginning of the 21st century,major earthquakes have frequently occurred *** explore the impact of astronomical factors on earthquakes,in this study,the statistical analysis method of correlation is used to systematically analyze the effects of astronomical factors,such as solar activity,Earth’s rotation,lunar declination angle,celestial tidal force,and other phenomena on M≥8 global earthquakes at the beginning of the 21st *** regard to solar activity,this study focuses on the analysis of the 11-year and century cycles of solar *** causal relationship of the Earth’s rotation is not obvious in this work and previous works;in contrast,the valley period of the solar activity century cycle may be an important astronomical factor leading to the frequent occurrence of global earthquakes at the beginning of the 21st *** topic warrants further study.

关键词： M≥8.0 earthquake astronomical factors solar activity Earth’s rotation lunar declination angle tidal force phenomena

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应更有效地利用国内的研究成果

中华烧伤杂志 2008年第1期24卷 1-2页

作者：游苏宁中华医学会杂志社北京100710

改革开放的中国迎来了科学的春天，从事科学研究和非从事科学研究者都在或多或少地享受着科学春天的阳光。然而，中国科技期刊所面临的窘境，以及为十多亿国人健康服务的医护工作者（应用科学家）如何获取出口转内销的“洋文”信息以提... 详细信息

改革开放的中国迎来了科学的春天，从事科学研究和非从事科学研究者都在或多或少地享受着科学春天的阳光。然而，中国科技期刊所面临的窘境，以及为十多亿国人健康服务的医护工作者（应用科学家）如何获取出口转内销的“洋文”信息以提高工作效率，又有多少国人关心与知晓。忧虑与质疑是责任感的起点，呐喊与理性方案是责任感的实践。请阅读一位忧国忧刊的学者——游苏宁的短文“应更有效地利用国内的研究成果”。推荐此文，是希望我们的明天更美好。

关键词：国内中国科技期刊科学研究医护工作者改革开放工作效率责任感科学家

Understanding adversarial attacks on observations in deep reinforcement learning

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Science China(Information Sciences) 2024年第5期67卷 69-83页

作者： you QIAOBEN Chengyang YING Xinning ZHOU Hang su Jun ZHU Bo ZHANG Department of Computer Science and Technology Beijing National Research Center for Information Science and Technology Tsinghua-Bosch Joint Center for Machine Learning Institute for Artificial Intelligence Tsinghua University Peng Cheng Laboratory

Deep reinforcement learning models are vulnerable to adversarial attacks that can decrease the cumulative expected reward of a victim by manipulating its observations. Despite the efficiency of previous optimization-based methods for generating adversarial noise in supervised learning, such methods might not achieve the lowest cumulative reward since they do not generally explore the environmental ***, a framework is provided to better understand the existing methods by reformulating the problem of adversarial attacks on reinforcement learning in the function space. The reformulation approach adopted herein generates an optimal adversary in the function space of targeted attacks, repelling them via a generic two-stage framework. In the first stage, a deceptive policy is trained by hacking the environment and discovering a set of trajectories routing to the lowest reward or the worst-case performance. Next, the adversary misleads the victim to imitate the deceptive policy by perturbing the observations. Compared to existing approaches, it is theoretically shown that our adversary is strong under an appropriate noise level. Extensive experiments demonstrate the superiority of the proposed method in terms of efficiency and effectiveness, achieving state-of-the-art performance in both Atari and MuJoCo environments.

关键词： deep learning reinforcement learning adversarial robustness adversarial attack

superconducting,Topological,and Transport Properties of Kagome Metals CsTi_(3)Bi_(5)and RbTi_(3)Bi_(5)

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Research 2024年第2期2023卷 753-762页

作者： Xin-Wei Yi Zheng-Wei Liao Jing-Yang you Bo Gu Gang su School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China Department of Physics Faculty of ScienceNational University of Singapore117551Singapore Kavli Institute for Theoretical Sciences and CAS Center for Excellence in Topological Quantum ComputationUniversity of Chinese Academy of SciencesBeijing 100190China

The recently discovered ATi_(3)Bi_(5)(A=Cs,Rb)exhibit intriguing quantum phenomena including superconductivity,electronic nematicity,and abundant topological ***_(3)Bi_(5)present promising platforms for studying kagome superconductivity,band topology,and charge orders in parallel with *** this work,we comprehensively analyze various properties of ATi_(3)Bi_(5)covering superconductivity under pressure and doping,band topology under pressure,thermal conductivity,heat capacity,electrical resistance,and spin Hall conductivity(SHC)using first-principles *** superconducting transition temperature(Tc)of CsTi_(3)Bi_(5)and RbTi_(3)Bi_(5)at ambient pressure are about 1.85 and 1.92 *** subject to pressure,Tc of CsTi_(3)Bi_(5)exhibits a special valley and dome shape,which arises from quasi-two-dimensional compression to three-dimensional isotropic compression within the context of an overall decreasing ***,Tc of RbTi_(3)Bi_(5)can be effectively enhanced up to 3.09 K by tuning the kagome van Hove singularities(VHSs)and flat band through *** can also induce abundant topological surface states at the Fermi energy(EF)and tune VHSs across ***,our transport calculations are in excellent agreement with recent experiments,confirming the absence of charge density ***,SHC of CsTi_(3)Bi_(5)can reach up to 226h·(e·Ω·cm)^(-1)at *** work provides a timely and detailed analysis of the rich physical properties for ATi_(3)Bi_(5),offering valuable insights for further experimental verifications and investigations in this field.

关键词： doping superconductivity conductivity

Multiple conductive network for KTi_(2)(PO_(4))_(3)anode based on MXene as a binder for high-performance potassium storage

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Chinese Chemical Letters 2024年第8期35卷 539-544页

作者： Tong su Yue Wang Qizhen Zhu Mengyao Xu ning Qiao Bin Xu State Key Laboratory of Organic-Inorganic Composites Beijing Key Laboratory of Electrochemical Process and Technology for MaterialsBeijing University of Chemical TechnologyBeijing 100029China

KTi_(2)(PO_(4))_(3)is a promising anode material for potassium storage,but suffers from low conductivity and difficult balance between high capacity and good structural ***,the Ti_(3)C_(2)T_(x)MXene is used as a multifunctional binder to fabricate the KTi_(2)(PO_(4))_(3)electrode by the traditional homogenizing-coating *** MXene nanosheets,together with the conductive agent super P nanoparticles,construct a multiple conductive network for fast electron/ion transfer and high electrochemical ***,the network ensures the structural stability of the KTi_(2)(PO_(4))_(3)electrode during the de-intercalation/intercalation of 4 K^(+)ions,which is beneficial for simultaneously achieving high capacity and good cycle ***,the MXene-bonded KTi_(2)(PO_(4))_(3)electrode delivers a reversible capacity of 255.2 mAh/g at 50 mA/g,outstanding rate capability with 132.3 mAh/g at 2 A/g,and ex-cellent cycle performance with 151.6 mAh/g at 1 A/g after 2000 *** work not only suggests a high-performance anode material for potassium-ion batteries,but also demonstrates that the MXene is a promising binder material for constructing conductive electrodes in rechargeable batteries.

关键词： MXene Ti_(3)C_(2)T_(x) KTi_(2)(PO_(4))_(3) Anode Conductive network Potassium storage

Acid-rock reaction kinetics in a two-scale model based on reaction order correction

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Petroleum Science 2024年第3期21卷 2089-2101页

作者： Xue-Song Li ning Qi Ze-Hui Zhang Lian Liu Xia-Qing Li Xu-Hang su School of Petroleum Engineering China University of Petroleum(East China)Qingdao266580ShandongChina Key Lab of Unconventional Oil&Gas Development Ministry of EducationChina University of Petroleum(East China)Qingdao26650ShandongChina SINOPEC Northwest Oilfield Branch Company Urumqi830011XinjiangChina Petroleum Engineering Technology Research Institute SINOPEC Shengli Oilfield CompanyDongying257000ShandongChina

The reaction order plays a crucial role in evaluating the response rate of ***,the conventional two-scale model typically assumes that the reaction order is constant as one,which can lead to significant deviations from *** address this issue,this study proposes a novel multi-order dynamic model for acid-rock reaction by combining rotating disk experimental data with theoretical *** numerical simulations,this model allows for the investigation of the impact of acidification conditions on different orders of reaction,thereby providing valuable insights for on-site *** analysis reveals that higher response orders require higher optimal acid liquid flow rates,and lower optimal H+diffusion coefficients,and demonstrate no significant correlation with acid ***,it is recommended to increase the displacement and use high-viscosity acid for reservoirs with high calcite content,while reducing the displacement and using low-viscosity acid for reservoirs with high dolomite content.

关键词： Reaction order Two-scale model Wormhole propagation Carbonate rocks Numerical simulation