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Accelerating C_(2+)alcohols synthesis from syngas by simultaneous optimizations of CO dissociation and chain growth over CuCo alloy catalyst

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Chinese Chemical Letters 2021年第7期32卷 2203-2206页

作者： meiling shui Chao Huang Peiyu Ma Wenjie Li Qun He Wenlong Wu Yisheng Tan Jun Bao National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefei 230029China Hefei National Laboratory for Physical Sciences at the Microscale Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of SciencesKey Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education InstitutesDepartment of Chemical PhysicsUniversity of Science and Technology of ChinaHefei 230026China State Key Laboratory of Coal Conversion Institute of Coal ChemistryChinese Academy of SciencesTaiyuan 030001China

With regard to the reaction of higheralcohol synthesis(HAS),the optimizations of activity and selectivity towards C_(2+)alcohol are restricted by the improper equilibrium in two different CO activation pathways and chain growth ***,we find that delibrately controlling the compositions of catalysts is an effective strategy to achieve the equilibrium of CO activation pathways and promote the chain *** a result,the optimized Cu_(0.25)Co_(0.75) alloy catalyst can achieve a large proportion of higher alcohol in alcohol products(C_(2+)OH/MeOH=4.40),together with high CO conversion of 71.27%and space-time-yield of 147.65 g kg^(-1) h^(-1).The mechanistic studies suggest that the good performance of Cu_(0.25)Co_(0.75) catalyst is attributed to the synergistic effect between alloyed Cu and Co.

关键词： CuCo alloy Syngas C_(2+)alcohols CO activation Synergistic effect

Inter‑Skeleton Conductive Routes Tuning Multifunctional Conductive Foam for Electromagnetic Interference Shielding,Sensing and Thermal Management

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Nano-Micro Letters 2025年第3期17卷 19-36页

作者： Xufeng Li Chunyan Chen Zhenyang Li Peng Yi Haihan Zou Gao Deng Ming Fang Junzhe He Xin Sun Ronghai Yu Jianglan shui Caofeng Pan Xiaofang Liu School of Materials Science and Engineering Beihang UniversityBeijing 100191People’s Republic of China Institute of Atomic Manufacturing Beihang UniversityBeijing 100191People’s Republic of China Tianmushan Laboratory Xixi Octagon CityYuhang DistrictHangzhou 310023People’s Republic of China Science and Technology On Electromagnetic Scattering Laboratory Beijing Institute of Environmental FeaturesBeijing 100854People’s Republic of China

Conductive polymer foam(CPF)with excellent compressibility and variable resistance has promising applications in electromagnetic interference(EMI)shielding and other integrated functions for wearable ***,its insufficient change amplitude of resistance with compressive strain generally leads to a degradation of shielding performance during ***,an innovative loading strategy of conductive materials on polymer foam is proposed to significantly increase the contact probability and contact area of conductive components under *** inter-skeleton conductive films are constructed by loading alginate-decorated magnetic liquid metal on the polymethacrylate films hanged between the foam skeleton(denoted as AMLM-PM foam).Traditional point contact between conductive skeletons under compression is upgraded to planar contact between conductive ***,the resistance change of AMLM-PM reaches four orders of magnitude under ***,the inter-skeleton conductive films can improve the mechanical strength of foam,prevent the leakage of liquid metal and increase the scattering area of EM ***-PM foam has strain-adaptive EMI shielding performance and shows compression-enhanced shielding effectiveness,solving the problem of traditional CPFs upon *** upgrade of resistance response also enables foam to achieve sensitive pressure sensing over a wide pressure range and compression-regulated Joule heating function.

关键词： Inter-skeleton conductive films Conductive polymer foam Liquid metal Electromagnetic interference shielding

Moment Redistribution Effect of the Continuous Glass Fiber Reinforced Polymer-Concrete Composite Slabs Based on Static Loading Experiment

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Structural Durability & Health Monitoring 2025年第1期19卷 105-123页

作者： Zhao-Jun Zhang Wen-Wei Wang Jing-shui Zhen Bo-Cheng Li De-Cheng Cai Yang-Yang Du Hui Huang Offshore Oil Engineering Co.Ltd. Tianjin300461China Department of Bridge Engineering School of TransportationSoutheast UniversityNanjing211189China

This study aimed to investigate the moment redistribution in continuous glass fiber reinforced polymer(GFRP)-concrete composite slabs caused by concrete cracking and steel bar yielding in the negative bending moment *** experimental bending moment redistribution test was conducted on continuous GFRP-concrete composite slabs,and a calculation method based on the conjugate beam method was *** composite slabs were formed by combining GFRP profiles with a concrete layer and supported on steel beams to create two-span continuous composite slab *** methods,epoxy resin bonding,and stud connection,were used to connect the composite slabs with the steel *** experimental findings showed that the specimen connected with epoxy resin exhibited two moments redistribution phenomena during the loading process:concrete cracking and steel bar yielding at the internal *** contrast,the composite slab connected with steel beams by studs exhibited only one-moment redistribution phenomenon throughout the loading *** the concrete at the internal support cracked,the bending moment decreased in the internal support section and increased in the midspan *** the steel bars yielded,the bending moment further decreased in the internal support section and increased in the mid-span *** GFRP profiles do not experience cracking,there was no significant decrease in the bending moment of the mid-span *** test specimens experienced compressive failure of concrete at the mid-span *** results showed good agreement between the calculated and experimental values of bending moments in the mid-span section and internal support *** proposed model can effectively predict the moment redistribution behavior of continuous GFRP-concrete composite slabs.

关键词： Moment redistribution GFRP-concrete composite slabs bending moment experimental study analysis model

TRMT6 and TRMT61A facilitated acute pancreatitis severity via regulation of neutrophil function

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Science China Life Sciences 2025年

作者： Yuan Dong Li Su Sin Man Lam Cen Yan Yalan Deng Guotao Lu Jinkui Yang Guanghou shui Yingmei Feng Beijing Institute of Hepatology Beijing Youan HospitalCapital Medical University Department of Science and Development Beijing Youan HospitalCapital Medical University Laboratory for Clinical Medicine Capital Medical University Neuroscience Research Institute Peking University Center of Medical and Health AnalysisPeking University State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental BiologyChinese Academy of Sciences Pancreatic Center Department of GastroenterologyAffiliated Hospital of Yangzhou UniversityYangzhou University Beijing Key Laboratory of Diabetes Research and Care Department of EndocrinologyBeijing Tongren HospitalCapital Medical University

Dear Editor,Type 2 diabetes mellitus (T2DM) has been identified as a risk factor for increased severity in acute pancreatitis (AP)(Mikóet al,2018).However,to date,no studies have simultaneously included healthy individuals,T2DM patients,and AP patients to investigate which diabetes-associated metabolites are linked to AP severity.

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内质网应激与常见退行性骨骼疾病的发生与发展

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中国组织工程研究 2025年第6期29卷 1285-1295页

作者：钱琨李子卿孙水山东第一医科大学附属省立医院骨关节科山东省济南市250021 医学科技创新中心骨科实验室山东第一医科大学(山东省医学科学院)山东省济南市250117

背景:常见的退行性骨骼疾病,如骨关节炎、骨质疏松症和椎间盘退变,其具体的发病分子机制目前尚未明确,可能涉及内质网应激。目前,关于内质网应激在这些常见骨骼疾病发病机制中的系统作用和相关治疗进展的研究较为有限。目的:综述内质网... 详细信息

背景:常见的退行性骨骼疾病,如骨关节炎、骨质疏松症和椎间盘退变,其具体的发病分子机制目前尚未明确,可能涉及内质网应激。目前,关于内质网应激在这些常见骨骼疾病发病机制中的系统作用和相关治疗进展的研究较为有限。目的:综述内质网应激在常见的退行性骨骼疾病中的作用,深入探讨这些疾病的分子机制并提供新的防治思路和视角。方法:检索2000-2024年相关文献,以“内质网应激,骨骼疾病,未折叠蛋白反应,骨关节炎,骨质疏松症,椎间盘退变,自噬,凋亡,铁死亡,焦亡”为中文检索词检索中国知网、万方、维普数据库;以“endoplasmic reticulum stress,bone disease,unfolded protein response,osteoarthritis,osteoporosis,intervertebral disc degeneration,autophagy,apoptosis,ferroptosis,pyroptosis”为英文检索词检索PubMed、Web of Science数据库。排除重复和较陈旧的文献,共115篇文献符合纳入标准。结果与结论:①内质网应激在细胞生理调节中具有双重效应。轻度的内质网应激有助于促进成骨分化和细胞外基质合成,然而持续过度的内质网应激则会导致细胞死亡。②内质网应激诱导的细胞自噬、凋亡等与骨关节炎、骨质疏松症、椎间盘退变密切相关。③衰老、药物不良反应、代谢紊乱、钙平衡失调、不良生活习惯等多种原因可导致内质网应激的长期激活,从而引起骨重塑紊乱、软骨损伤、髓核细胞死亡等病理表现,最终导致骨关节炎、骨质疏松和椎间盘退变的发生。④对引发内质网应激的相关机制进行干预,有望在预防和治疗骨关节炎、骨质疏松症和椎间盘退变等常见退行性骨病方面发挥作用。

关键词：内质网应激骨骼疾病未折叠蛋白反应骨关节炎骨质疏松症椎间盘退变

A note on residual allocation models

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Frontiers of Mathematics in China 2021年第2期16卷 381-394页

作者： shui FENG Department of Mathematics and Statistics McMaster UniversityHamiltonOnt L8S 4K1Canada

Residual allocation models (RAMs) arise in many subjects including Bayesian statistics, combinatorics, ecology, finance, information theory, machine learning, and population genetics. In this paper, we give a brief review of RAM and presents a few examples where the model arises. An extended discussion will focus a concrete model, the GEM distribution, and its ordered analogue, the Poisson-Dirichlet distribution. The paper concludes with a discussion of the GEM process.

关键词： GEM distribution Poisson-Dirichlet distribution stick-breaking GEM process

Evolutionary p(x)-Laplacian Equation with a Convection Term

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Acta Mathematicae Applicatae Sinica 2019年第3期35卷 655-670页

作者： Hua-shui ZHAN School of Applied Mathematics Xiamen University of Technology

The paper studies an evolutionary p(x)-Laplacian equation with a convection term ut=div(ρα|■u|p(x)-2■u)+∑N i=1■bi(u)/■xi,whereρ(x)=dist(x,■Ω),ess inf p(x)=p^->*** assure the well-posedness of the solutions,the paper shows only a part of the boundary,Σp■■Ω,on which we can impose the boundary value.Σp is determined by the convection term,in particular,when 1<α<(p^--2)/2,Σp={x∈■Ω:bi′(0)ni(x)<0}.So,there is an essential difference between the equation and the usual evolutionary p-Laplacian *** last,the existence and the stability of weak solutions are proved under the additional conditionsα<(p^--2)/2 andΣp=■Ω.

关键词： Evolutionary p(x)-Laplacian equation week solution Fichera-Oleinik theory boundary degeneracy

The Puzzles in Fast Charging of Li-Ion Batteries

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Energy & Environmental Materials 2022年第4期5卷 1005-1007页

作者： Sheng shui Zhang Battery Science Branch FCDD-RLS-CESensors and Electron Devices DirectorateU.S.Army Research LaboratoryAdelphi MD 20783-1138USA

Fast charging of Li-ion cells faces two aspects of challenges,1)accelerated capacity fade and 2)inferior charging *** is commonly believed that the former is due to Li plating and its resultant reactions with electrolyte at the graphite anode,which results in a loss in the inventory of Li+ions and an increase in the cell’s *** the latter is ascribed to the high voltage polarization in relation to the slow transport of Li+ions between two ***,there are many other hidden facts that essentially affect the fast charging performances of Li-ion *** commentary intends,from the view of materials,to uncover these hidden factors,including failure of the solid electrolyte interphase and exfoliation of the graphite structure at the anode,structural degradation of the Ni-rich layered cathode materials,as well as the high solvation and desolvation activation energies of Li+ions in the ***,some solutions to the fast-charging problems of Li-ion cells are proposed based on the understanding of these hidden factors.

关键词： electrolyte fast charging graphite anode layered cathode Li-ion battery

我国人才发展治理体系的特征、逻辑基础与发展路向

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三峡大学学报（人文社会科学版） 2025年第1期47卷 88-95页

作者：吴凡黄焕水广西大学公共管理学院广西南宁530004

人才发展治理体系是国家治理体系现代化的重要组成部分,是国家创新驱动和社会进步实现的驱动力。人才发展治理体系就是要从系统论角度,以国家战略、社会经济发展和人才可持续发展为目标,对人才资源进行全方位、全周期的管理与开发的综... 详细信息

人才发展治理体系是国家治理体系现代化的重要组成部分,是国家创新驱动和社会进步实现的驱动力。人才发展治理体系就是要从系统论角度,以国家战略、社会经济发展和人才可持续发展为目标,对人才资源进行全方位、全周期的管理与开发的综合性制度体系。梳理了我国人才发展治理体系发展的四个阶段,总结出我国人才发展治理体系的法制化、市场化、社会化、国际性、包容性五个特征,揭示我国人才发展治理体系运行的逻辑基础(即坚持党管人才、坚持本土化战略、遵循市场规律和坚持以人为本四个原则)。基于此,提出通过强化顶层设计、深化数字赋能以及加强人文关怀等对策建议,旨在构建符合中国国情的人才发展治理体系,为实现中华民族伟大复兴提供坚实的人才支撑。

关键词：人才发展治理体系治理特征治理逻辑发展路向