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Homologous CoS2 interface with directed electron transfer and strong chloridion repulsion for efficient seawater oxidation

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Science China Chemistry 2025年

作者： Yuan Tian Jiang-Bo Chen Jie ying Ge Tian Yu-Xuan Xiao yi Lu Si-Ming Wu Wei Geng Ling Shen Xiao-Yu Yang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing and School of Materials Science and Engineering and Shenzhen Research Institute & Laoshan Laboratory Wuhan University of Technology School of Chemical Engineering and Technology Sun Yat-Sen University National Energy Key Laboratory for New Hydrogen-Ammonia Energy Technologies Foshan Xianhu Laboratory

Seawater electrolysis is a highly promising method to produce high energy density hydrogen,especially in dry areas that have scarce freshwater ***,application of seawater electrolysis is confronted by two major problems associated with catalysts employed for the anodic oxygen evolution reaction （OER） including the competitive hypochlorite evolution reaction（HCER） and strong chloridion （Cl–） triggered *** studies aimed at overcoming these problems,a facile method has been developed to synthesize a homologous CoS2heterojunction as an OER *** to a difference in work functions at the interface and increased electron density,this material has directed electron transfer and strong chloridion repulsion properties,*** have shown that CoS2achieves low overpotentials of 289 and 322 mV at 10 mA cm-2current density in respective alkaline （1 M KOH） and alkaline simulated seawater ***,the outstanding stability of CoS2is reflected in a negligible decline in activity during promotion of the OER for 100 *** of density functional theory calculations reveal that the homologous CoS2heterojunction promotes directed electron transport for optimizing adsorption/desorption of reactive species and heightens the Cl-adsorption energy for strongly repulsing Cl-,phenomena that enhance OER performance in alkaline simulated seawater.

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领导倾听内涵及其多层次效应

心理科学进展 2025年第1期33卷 25-41页

作者：刘庚韩翼卢俊阳江西农业大学经济管理学院南昌330045 中南财经政法大学工商管理学院武汉430073 江西师范大学历史文化与旅游学院南昌330022

面对错综复杂和快速变化的商业环境,组织要想做出快速响应,领导者的有效倾听显得非常重要。通过文献综述发现,现有研究尚未对领导倾听的概念形成统一界定,且理论视角和研究层次较为单一,这不利于我们深入理解领导倾听的内涵及其多层次... 详细信息

面对错综复杂和快速变化的商业环境,组织要想做出快速响应,领导者的有效倾听显得非常重要。通过文献综述发现,现有研究尚未对领导倾听的概念形成统一界定,且理论视角和研究层次较为单一,这不利于我们深入理解领导倾听的内涵及其多层次效应。事实上,作为一种领导行为,领导倾听不仅会对领导者自身产生影响,而且会给团队及其下属带来影响。因此,本研究基于二元互动情境,从沟通信息和支持员工两方面对领导倾听的内涵进行探索性研究,并从领导力效能的评价对象(领导者、团队、员工)出发,结合多层次、多理论、多研究方法的全景研究范式逐步揭示领导倾听对不同对象的不同效应、黑箱机制及边界条件。本研究不仅开拓了倾听研究的新思路和新视角,而且为企业增强领导倾听的积极效能提供了管理启示。

关键词：领导倾听领导力效能领导工作绩效团队追随行为员工建言

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学科类培训机构缩减对学生在校时长的影响:基于“双减”政策的评估研究

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华东师范大学学报（教育科学版） 2025年第1期43卷 37-48页

作者：陆伟魏易杭州师范大学经亨颐教育学院杭州311121 北京大学中国教育财政科学研究所北京100871

对校外培训机构的治理整顿是“双减”改革的重要内容之一。本文使用大众点评网学科类培训机构的商铺信息,结合高德地图地理编码和搜索POI应用接口,以及全国中小学教育信息化使用情况调查等数据,实证检验了学科类校外培训机构缩减对学生... 详细信息

对校外培训机构的治理整顿是“双减”改革的重要内容之一。本文使用大众点评网学科类培训机构的商铺信息,结合高德地图地理编码和搜索POI应用接口,以及全国中小学教育信息化使用情况调查等数据,实证检验了学科类校外培训机构缩减对学生在校时长的影响。研究发现:(1)“双减”期间,全国层面学科类培训机构的缩减比例约为88%。(2)学校周边学科类培训机构的缩减程度越高,学生每天待在学校内的时间也越多,也即校内教育与校外教育出现一定程度的替代,且这种替代效应在弱势阶层群体中更为明显;在北上广深四个一线城市不明显,但在其他众多二三线城市可以观察到。(3)学校周边学科类培训机构的缩减程度越高,学生在学校内完成课后作业的概率也越高,而在校外辅导班完成课后作业的概率则越低;但培训机构缩减对学生完成课后作业的总时长没有影响。

关键词： “双减” 学科类培训机构校外培训在校时长

High-Q microresonators on 4H-silicon-carbide-on-insulator platform for nonlinear photonics

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Light(Science & Applications) 2021年第8期10卷 1474-1484页

作者： Chengli Wang Zhiwei Fang Ailun yi bingcheng Yang Zhe Wang Liping Zhou Chen Shen yifan Zhu Yuan Zhou Rui Bao Zhongxu Li Yang Chen Kai Huang Jiaxiang Zhang Ya Cheng Xin Ou State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences200050 ShanghaiChina. The Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences100049 BeijingChina The Extreme Optoelearomechanics Laboratory(XXL) School of Physics and Electronic ScienceEast China Normal University200241 ShanghaiChina. State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science Shanghai Institute of Optics and Fine MechanicsChinese Academy of Sciences201800 ShanghaiChina

The realization of high-quality(Q)resonators regardless of the underpinning material platforms has been a ceaseless pursuit,because the high-Q resonators provide an extreme environment for confining light to enable observations of many nonlinear optical phenomenon with high ***,photonic microresonators with a mean Q factor of 6.75×10^(6)were demonstrated on a 4H-silicon-carbide-on-insulator(4H-SiCOI)platform,as determined by a statistical analysis of tens of *** these devices,broadband frequency conversions,including second-,third-,and fourth-harmonic generations have been *** Raman lasing has also been demonstrated in our SiC microresonator for the first time,to the best of our ***,by engineering the dispersion properties of the SiC microresonator,we have achieved broadband Kerr frequency combs covering from 1300 to *** demonstration represents a significant milestone in the development of SiC photonic integrated devices.

关键词： resonator carbide nonlinear

Facile synthesis of the dodecahydridododecaborate (B12H122-) from borane Lewis base adducts

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Science China Chemistry 2025年

作者： yi Jing Xin-Ran Liu Xing-Hua Wang Hui Han Sha-Sha Liang Xi-Meng Chen Dong-Hui Wei Lai-Sheng Wang Xue-Nian Chen College of Chemistry Zhengzhou University School of Chemistry and Chemical Engineering Henan Key Laboratory of Boron Chemistry and Advanced MaterialsHenan Normal University Department of Chemistry Brown University

Polyhedral boranes are a class of well-known boron molecular clusters widely used in energy,chemistry,medicine,and materials science because of their unique physical and chemical *** efforts have been made in the past decades to find more effective synthetic methods for this important class of boron ***,existing synthetic methods suffer from low efficiency and low ***,we report a facile one-pot synthesis of[（CH3）3S]2B12H12with moderate yields at mild *** mechanisms for the multi-step chemoselective synthesis of B12H122-without other by-products are elucidated based on theoretical results and our previous *** Lewis base used in B–H bond condensation reaction,which acts as a hydrogen or to balance the newly generated polyhedral borane charges,is proposed and studied in *** current study has led to a more effective and selective synthetic method for B12H122-and has also implicated the syntheses of other new polyhedral boranes.

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花瑶挑花纹样在女士皮包中的创新设计与应用

皮革科学与工程 2025年第1期35卷 89-97页

作者：刘辉超张毅江南大学数字科技与创意设计学院江苏无锡214400

花瑶挑花纹样造型多样、设计精巧,具有较高的美学价值与应用价值,但将其创新应用至箱包设计领域的相关研究却相对较少。从设计学角度出发,分析花瑶挑花的典型图案和文化内涵,归纳其核心元素特征;调查研析消费人群及其风格偏好,确立产品... 详细信息

花瑶挑花纹样造型多样、设计精巧,具有较高的美学价值与应用价值,但将其创新应用至箱包设计领域的相关研究却相对较少。从设计学角度出发,分析花瑶挑花的典型图案和文化内涵,归纳其核心元素特征;调查研析消费人群及其风格偏好,确立产品的设计定位;选取典型挑花纹样,运用形状文法和风格迁移算法分别进行创新再造设计,并结合3D数字化软件将创新方案应用于时尚女包设计中,开发出兼具民族特色和现代形式美感的革制品。通过将数字化技术手段与花瑶挑花纹样皮具的有机结合,既保证了挑花纹样的迭代与创新,又提高了革制品图案设计的创作效率。

关键词：挑花纹样女包形状文法风格迁移算法创新设计花瑶

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[Progress in applications of ambient ionization mass spectrometry for lipids identification]

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Se pu = Chinese journal of chromatography 2025年第1期43卷 22-32页

作者： Xiao-Rong Wang yi-Yan yin Jin Ouyang Na Na Key Laboratory of Radiopharmaceuticals Ministry of Education College of Chemistry Beijing Normal University Beijing 100875 China. Department of Chemistry College of Arts and Sciences Beijing Normal University Zhuhai 519087 China.

Lipids are indispensable components of living organisms and play pivotal roles in cell-membrane fluidity, energy provision, and neurotransmitter transmission and transport. Lipids can act as potential biomarkers of diseases given their abilities to indicate cell-growth status. For example, the lipid-metabolism processes of cancer cells are distinct from those of normal cells owing to their rapid proliferation and adaptation to ever-changing biological environments. As a result, the ability to rapidly detect, identify, and monitor lipid components is critical for tracking life-related processes and may enhance cancer diagnosis and treatment efficacy. Mass spectrometry (MS) is regarded to be among the most efficient methods for directly obtaining molecular-structural information, and is distinctly advantageous for identifying lipids. Recent years have witnessed the emergence of ambient mass spectrometry (AMS), which enables direct analyte sampling and ionization without the need for sample preprocessing. These characteristics endow AMS with special advantages for identifying and monitoring lipids. Furthermore, the ongoing development of soft ionization technologies has led to the widespread use of AMS for the detection of complex and diverse lipid molecules. Electrospray ionization (ESI) is a gentle ionization method that can be used to detect medium-to-high-polarity compounds and provide detailed chemical information for lipids by producing a fine mist of charged droplets from a liquid sample. Consequently, a series of ESI-based ionization methods have been developed for fabricating different AMS systems capable of rapidly detecting lipids in a simple manner. For example, desorption electrospray ionization (DESI) is among the most extensively employed ambient ionization techniques, and has been used to detect a wide range of samples, including solids, liquids, and gases. DESI involves spraying a charged solvent onto the surface of a sample, after which the solvent is

关键词： ambient mass spectrometry (AMS) ionization techniques lipid lipid fine structure tandem mass spectrometry (MS/MS)

数字克隆人:“跨媒介—交互”中的数字沉浸性研究——基于容积视频捕获技术的探讨

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东北师大学报（哲学社会科学版） 2025年第1期 154-162页

作者：沈嘉熠温凯华东师范大学传播学院上海200241

容积视频捕获(Volumetric Video)是通过光学扫描来捕捉拍摄对象并生成动静两态4D数字影像模型的前沿机器视觉技术之一。与现有的虚拟数字人不同,它生成的数字克隆人是对真人一比一的真实呈现,故而数字克隆人所具有的视觉情感与叙事场景... 详细信息

容积视频捕获(Volumetric Video)是通过光学扫描来捕捉拍摄对象并生成动静两态4D数字影像模型的前沿机器视觉技术之一。与现有的虚拟数字人不同,它生成的数字克隆人是对真人一比一的真实呈现,故而数字克隆人所具有的视觉情感与叙事场景于受众而言具有更深刻的沉浸性。本文从数字克隆人的生成逻辑、技术特性出发,深挖其背后生发的感知体验与情感投射,通过跨媒介叙事分析,结合实验室成果探索其沉浸意境与实践意义,揭示数字克隆人在经历“生产—创造”的过程后将客观形态和主观感性融合在一起,冲破了人与技术、人与审美、人与群体的边界,在虚拟世界中转化为现实的仿真。

关键词：沉浸体验交互叙事容积视频捕获数字克隆人

Small modifications of endo-functionalized cavities lead to large changes in molecular interaction in water

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Science China Chemistry 2025年第1期 369-376页

作者： Song-Meng Wang Hao Nian Yan-Fang Wang Li-Shuo Zheng Yu-Tao Zheng yi-Wei Dong Liping Huang Xiaoping Wang Wei Jiang Liu-Pan Yang Department of Chemistry Southern University of Science and Technology School of Chemistry and Pharmaceutical Sciences State Key Laboratory for Chemistry and Molecular Engineering of Medicinal ResourcesGuangxi Normal University School of Pharmaceutical Science Hengyang Medical School University of South China

Studying molecular recognition in aqueous environments is crucial for understanding biological processes. Herein, we present a series of N-doped endo-functionalized anthracene-based cavities by introducing inward-directed pyridine units. The subtle modifications can significantly affect the binding properties of these receptors, which is similar to the mutations in biological systems. Combining theoretical calculations and molecular recognition experiments demonstrated that these “mutations” have an impact on the hydrophobicity and charge distribution of the hosts, consequently significantly influencing molecular *** is crucial for understanding the intricate mechanisms of molecular-level interactions in biological receptors.

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