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Asymmetrically coordinated main group atomic In-S_(1)N_(3)interface sites for promoting electrochemical CO_(2)reduction

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Nano Research 2024年第6期17卷 5011-5021页

作者： Yan Gao Jinlong Ge jingqiao Zhang Ting Cao Zhiyi Sun Wensheng Yan Yu wang Jie Lin Wenxing Chen Zheng Liu Anhui Provincial Engineering Laboratory of Silicon-based Materials Bengbu UniversityBengbu 233030China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China SEPA Key Laboratory of Eco-Industry Chinese Research Academy of Environmental SciencesBeijing 100012China Ningbo Institute of Materials Technology and Engineering Chinese Academy of ScienceNingbo 315201China Energy&Catalysis Center School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081China National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefei 230029China Shanghai Synchrotron Radiation Facilities Shanghai Institute of Applied PhysicsChinese Academy of ScienceShanghai 201204China

Designing catalysts with highly active,selectivity,and stability for electrocatalytic CO_(2)to formate is currently a severe ***,we developed an electronic structure engineering on carbon nano frameworks embedded with nitrogen and sulfur asymmetrically dual-coordinated indium active sites toward the efficient electrocatalytic CO_(2)reduction *** expected,atomically dispersed In-based catalysts with In-S_(1)N_(3)atomic interface with asymmetrically coordinated exhibited high efficiency for CO_(2)reduction reaction(CO_(2)RR)to *** achieved a maximum Faradaic efficiency(FE)of 94.3%towards formate generation at−0.8 V *** hydrogen electrode(RHE),outperforming that of catalysts with In-S2N2 and In-N4 atomic *** at a potential of−1.10 V ***,In-S_(1)N_(3)achieves an impressive Faradaic efficiency of 93.7%in flow *** catalytic performance of In-S_(1)N_(3)sites was confirmed to be enhanced through in-situ X-ray absorption near-edge structure(XANES)measurements under electrochemical *** discovery provides the guidance for performance regulation of main group metal catalysts toward CO_(2)RR at atomic scale.

关键词： indium single-site catalyst main group metal asymmetrical coordination CO_(2)reduction reaction structure-activity relationship

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Novel technologies in cfDNA analysis and potential utility in clinic

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Chinese Journal of Cancer Research 2021年第6期33卷 708-718页

作者： Jie Li Mengyue Xu Junya Peng jingqiao wang Yupei Zhao Wenming Wu Xun Lan Department of Basic Medical Sciences School of MedicineTsinghua UniversityBeijing 100084China Department of General Surgery Peking Union Medical College HospitalChinese Academy of Medical Science&Peking Union Medical CollegeBeijing 100730China Department of Medical Research Peking Union Medical College HospitalChinese Academy of Medical Science&Peking Union Medical CollegeBeijing 100730China Tsinghua-Peking Joint Center for Life Sciences Tsinghua UniversityBeijing 100084China Department of State Key Laboratory of Complex Severe and Rare Diseases Peking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijing 100730China

The profiling of plasma cell-free DNA(cfDNA)is becoming a valuable tool rapidly for tumor diagnosis,monitoring and *** plasma cfDNA technologies have been in routine or emerging use,including analyses of mutations,copy number alterations,gene fusions and DNA ***,new technologies in cfDNA analysis have been developed in laboratories,and potentially reflect the status of epigenetic modification,the immune microenvironment and the microbiome in tumor *** this review,the authors discuss the principles,methods and effects of the current cfDNA assays and provide an overview of studies that may inform clinical applications in the near future.

关键词： cfDNA liquid biopsy cancer diagnosis recurrence monitoring therapy response

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面向应急事件的卫星任务规划技术

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航天返回与遥感 2022年第3期43卷 105-112页

作者：王静巧杨磊庄超然史小金中国四维测绘技术有限公司北京100094 中国资源卫星应用中心北京100094

陆地观测卫星在轨运控中,面向用户成像需求的任务规划通常分为常规和应急两种类型。常规任务规划即根据需求的类型及空间位置,结合卫星轨道信息进行需求过境计算及常规任务安排,以获取卫星影像数据;应急任务规划即通过技术手段实现卫星... 详细信息

陆地观测卫星在轨运控中,面向用户成像需求的任务规划通常分为常规和应急两种类型。常规任务规划即根据需求的类型及空间位置,结合卫星轨道信息进行需求过境计算及常规任务安排,以获取卫星影像数据;应急任务规划即通过技术手段实现卫星快速应急成像。文章通过分析卫星常规及应急运控模式,提出了卫星应急成像任务规划模式下需求统筹、卫星资源综合调度、应急可行性分析、测控和接收资源调度、应急计划快速调整等关键技术,总结了中国陆地观测卫星应急成像能力,对应急任务规划系统设计提出可行性建议,有效地提高了卫星应急时效性。

关键词：任务规划应急成像智能匹配动态任务规划陆地观测卫星

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中国陆地观测卫星应急成像时效性分析

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航天返回与遥感 2022年第4期43卷 111-122页

作者：史小金王静巧庄超然曾湧中国四维测绘技术有限公司北京100094 中国资源卫星应用中心北京100094

为研究中国陆地观测卫星全球应急成像能力,通过分析卫星应急任务规划中涉及的卫星资源、测控资源及数传资源等,综合卫星过境窗口、卫星载荷能力、应急指令执行能力,提出了中国陆地观测卫星应急成像时效性分析方法;对境内及周边国家、欧... 详细信息

为研究中国陆地观测卫星全球应急成像能力,通过分析卫星应急任务规划中涉及的卫星资源、测控资源及数传资源等,综合卫星过境窗口、卫星载荷能力、应急指令执行能力,提出了中国陆地观测卫星应急成像时效性分析方法;对境内及周边国家、欧洲及非洲、南北美洲等地区的应急成像与应急影像数据接收时效性进行分析计算,相关结果紧贴中国陆地观测卫星的测控能力、测控资源、数传资源的实际现状,可为中国陆地观测卫星的测控和数传资源的发展建设提供良好依据。

关键词：陆地观测卫星星地资源应急能力应急时效性

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伴前庭水管扩大的非综合征性听力障碍耳聋基因突变谱研究

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中国康复理论与实践 2023年第1期29卷 119-124页

作者：王屹陈振波李勇王晶俏刘志忠中国康复研究中心北京博爱医院检验科北京市100068 中国康复研究中心北京博爱医院影像科北京市100068 首都医科大学康复医学院北京市100068 中国医学科学院整形外科医院放射科北京市100144

目的观察伴前庭水管扩大(EVA)的非综合征性听力障碍(NSHI)患者耳聋基因突变谱。方法2015年10月至2016年8月,对湖北宜昌特殊教育学校确诊为NSHI的患者85例进行颞骨CT检查,基质辅助激光解吸/电离飞行时间质谱对GJB2、GJB3、SLC26A4和线粒... 详细信息

目的观察伴前庭水管扩大(EVA)的非综合征性听力障碍(NSHI)患者耳聋基因突变谱。方法2015年10月至2016年8月,对湖北宜昌特殊教育学校确诊为NSHI的患者85例进行颞骨CT检查,基质辅助激光解吸/电离飞行时间质谱对GJB2、GJB3、SLC26A4和线粒体DNA(mtDNA)12S rRNA的20个耳聋相关基因突变位点进行检测。结果颞骨CT显示EVA患者31例。与非EVA患者相比,EVA患者携带突变的比例明显增高(χ^(2)=11.160,P=0.001),主要表现为SLC26A4基因中c.919-2A>G突变水平显著增高(χ^(2)=23.870,P<0.001)。结论伴EVA的NSHI患者耳聋基因突变谱不同于非EVA患者,可优化耳聋基因检测方案,为伴EVA的NSHI的早诊断、早干预提供帮助。

关键词：非综合征性听力障碍前庭水管扩大基因突变

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基于分数阶模型的锂离子电池SOC估计方法及优化

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黑龙江科技大学学报 2022年第4期32卷 550-556页

作者：张东青王国儒王靖乔黑龙江科技大学电气与控制工程学院哈尔滨150022

针对粒子滤波算法估计电池荷电状态精度较低的问题,提出一种基于分数阶模型的多新息扩展卡尔曼粒子滤波修正估计算法。建立分数型二阶电池模型,通过自适应遗传算法辨识参数,采用扩展卡尔曼滤波算法估计电池健康状态,迭代更新内阻实现电... 详细信息

针对粒子滤波算法估计电池荷电状态精度较低的问题,提出一种基于分数阶模型的多新息扩展卡尔曼粒子滤波修正估计算法。建立分数型二阶电池模型,通过自适应遗传算法辨识参数,采用扩展卡尔曼滤波算法估计电池健康状态,迭代更新内阻实现电池荷电状态修正估计,在室温下对18650锂电池进行脉冲放电测试,对比分析整数型和分数型算法参数的辨识结果。结果表明,分数型二阶电池模型能够更全面地表征电池特性,所提优化算法估计SOC平均误差与均方根误差为0.48%与0.55%,估计精度均优于其他算法,具有较高应用前景。

关键词： SOC 分数阶模型多新息扩展卡尔曼粒子滤波

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The reformation of catalyst:From a trial-and-error synthesis to rational design

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Nano Research 2024年第4期17卷 3261-3301页

作者： Ligang wang Jiabin Wu Shunwu wang Huan Liu Yao wang Dingsheng wang Department of Chemistry Tsinghua UniversityBeijing 100084China

The appropriate catalysts can accelerate the reaction rate and effectively boost the efficient conversion of various molecules,which is of great importance in the study of chemistry,chemical industry,energy,materials and environmental ***,efficient,environmentally friendly,and easy to operate synthesis methods have been used to prepare various types of *** previous studies have reported the synthesis and characterization of the aforementioned catalysts,more still remain in trial and error methods,without in-depth consideration and improvement of traditional synthesis ***,we comprehensively summarize and compare the preparation methods of the trial-and-error synthesis strategy,structure–activity relationships and density functional theory(DFT)guided catalysts rational design for nanomaterials and atomically dispersed *** also discuss in detail the utilization of the nanomaterials and single atom catalysts for converting small molecules(H_(2)O,O_(2),CO_(2),N_(2),etc.)into value-added products driven by electrocatalysis,photocatalysis,and ***,the challenges and outlooks of mass preparation and production of efficient and green catalysts through conventional trial and error synthesis and DFT theory are featured in accordance with its current development.

关键词： trial-and-error synthesis structure–activity relationships density functional theory(DFT)guidance nanomaterials atomically dispersed catalysts

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Numerical Analysis of PRISM-PY Calculations for Hard-and Soft-Core Generic Polymer Models

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Chinese Journal of Polymer Science 2024年第4期42卷 532-543页

作者： Qiang wang Department of Chemical and Biological Engineering Colorado State University1370 Campus DeliveryFort CollinsCO80523-1370USA

Generic polymer models capturing the chain connectivity and excluded-volume interactions between polymer segments can be classified, according to whether or not the 3D integral of the latter diverges, into hard- and soft-core models. Taking homogeneous systems of compressible homopolymer melts (or equivalently homopolymer solutions in an implicit, good solvent) in the continuum as an example, we recently compared the correlation effects on the structural and thermodynamic properties of the hard- and soft-core models given by the polymer reference interaction site model (PRISM) theory with the Percus-Yevick (PY) closure (Polymers 2023, 15, 1180). Here we analyzed in detail the numerical errors and behavior of the interchain pair correlation functions (PCFs) given by the PRISM-PY calculations of these models using an efficient numerical approach that we proposed. Our numerical approach has the least number of independent variables to be iteratively solved, analytically treats the discontinuities caused by the non-bonded pair potential (such as that of the hard spheres) and takes only the inverse Fourier transform of the interchain indirect PCF between polymer segments (which is continuous and decays towards 0 with increasing wavenumber much faster than both the interchain direct and total PCFs), and is essential for us to accurately solve the PRISM-PY theory for chain length N as large as 106. To capture the correlation-hole effect, the real-space cut-off in the PRISM calculations should be proportional to the square root of N.

关键词： Generic polymer models Soft potentials Polymer reference interaction site model theory

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Linear-Quadratic Pareto Cooperative Game for Mean-Field Backward Stochastic System

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Journal of Systems Science & Complexity 2024年第3期37卷 947-964页

作者： wang Yu School of Control Science and Engineering Shandong UniversityJinan 250061China

This paper focuses on a Pareto cooperative differential game with a linear mean-field backward stochastic system and a quadratic form cost functional. Based on a weighted sum optimality method, the Pareto game is equivalently converted to an optimal control problem. In the first place,the feedback form of Pareto optimal strategy is derived by virtue of decoupling technology, which is represented by four Riccati equations, a mean-field forward stochastic differential equation(MF-FSDE),and a mean-field backward stochastic differential equation(MF-BSDE). In addition, the corresponding Pareto optimal solution is further obtained. Finally, the author solves a problem in mathematical finance to illustrate the application of the theoretical results.

关键词： Backward stochastic differential equation linear-quadratic control mean-field Pareto optimality

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Light People: Professor Fanglin Bao and his cover story

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Light(Science & Applications) 2024年第6期13卷 1015-1020页

作者： Ji wang School of Science Westlake UniversityHangzhouZhejiangPR China

Qu Yuan,a renowned ancient Chinese poet,once pondered in his work Heavenly Inquiry:“If the sun’s light is absent,from where does the radiance of the Hero Flower emanate?”The ability to see clearly in the darkest of nights has long been a sought-after magical power by *** holds not only immense technological significance for computer vision and remote sensing but also profound implications for transcending the dichotomy between day and night in our daily *** Fanglin Bao from Westlake University has made significant breakthroughs in this field,bringing us closer to a world where we can transform night into *** groundbreaking research on Heat-Assisted Detection and Ranging(HADAR)and night vision was featured as the cover story in Nature on July 26,2023.

关键词： bringing breakthrough holds

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