检索结果-南通市图书馆

维普期刊数据库

Immobilizing Triphenylamine with Photoredox Inert Sr^(2+)Forming Sr-MOF with Controlled Electron Migration for Photocatalytic Oxidation of Thiols to Disulfides

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemistry 2024年第10期42卷 1093-1099页

作者： Ying-Xia Wang Fang Zheng Dong-Xia Song bao-yue Niu Lu-Qian Deng Xian-ming Zhang Key Laboratory of Magnetic Molecules and Magnetic Information Materials(Ministry of Education) Schoolof Chemistry and Materials ScienceShanxi Normal UniversityTaiyuanShanxi 030006China Key Laboratory of Interface Science and Engineering in Advanced Material(Ministry of Education) College of ChemistryTaiyuan University of TechnologyTaiyuanShanxi 030024China

The photocatalytic oxidative coupling of thiols is one of the most popular methods to synthesize the *** and its derivatives(TPAs)are promising for the above reaction,but suffer from the easy polymerization and difficult *** overcome these obstacles while controlling the photogenerated electrons transfer directly to target substrates,herein,we constructed one TPA-based metal-organic framework(MOF),(Me_(2)NH_(2))[Sr(TCBPA)]·DMA·3H_(2)O(1),by direct self-assembly of tris(4′-carboxybiphenyl)amine(H_(3)TCBPA)and photoredox inert strontium ion(Sr^(2+)).DFT calculations revealed that the valence band maximum(VBM)and the conduction band minimum(CBM)are mainly located on TCBPA^(3-),successfully inhibiting the undesirable electron migration to metal *** results indicated that 1 displays superior performance than homogeneous H_(3)TCBPA,which may result from the abundant π…π and C—H…π interactions between the well-arranged TCBPA^(3-)and the build-in electric field between the anionic framework and the Me_(2)NH^(2+).This work highlights that immobilizing TPAs into MOFs is one promising approach to designing heterogeneous photocatalysts for the synthesis of disulfides by oxidative coupling of thiols.

关键词： Triphenylamine Metal-organic frameworks Strontium Photooxidation Thiols Disulfides

Peroxisome Proliferator-Activated Receptor-γCoactivator-1αin the Spotlight with Multiple Sclerosis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neuroscience Bulletin 2024年第2期40卷 268-272页

作者： Ya-Na Yang Mao-Qing Zhang Feng-Lin Yu Bing Han ming.yue bao Yan He Xing Li Yuan Zhang Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry(Shaanxi Normal University) The Ministry of EducationXi’an 710119China College of Life Sciences Shaanxi Normal UniversityXi’an 710119China

Multiple sclerosis(MS)is a chronic and incurable autoimmune disease of the central nervous system(CNS)that results in neuro-inflammation and *** therapies for MS alleviate symptoms to some extent but fail to realize myelin ***,it is crucial to identify effective targets to promote *** a widely expressed transcriptional regulator,peroxisome proliferatoractivated receptor-coactivator-1α(PGC-1α)expresses in different cells with high energy consumption,including skeletal muscle cells,brown fat cells,neurons,astrocytes,and oligodendrocyte precursor cell(OPC)[1].Targeting PGC-1αmay be beneficial for CNS development and various neurodegenerative diseases.

关键词： inflammation myelin autoimmune

Linking of Chemical Reactions and Silica Nanoparticle Contact Using Synthetic Helical Molecules

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Chemistry 2024年第15期42卷 1781-1796页

作者： Sheng Zhang ming bao Mieko Arisawa Masahiko Yamaguchi state Key Laboratory of Fine Chemicals Dalian University of TechnologyDalianLiaoning 116024China Department of Bioscience and Biotechnology Graduate Schoolof Bioresource and Bioenvironmental SciencesKyushu UniversityFukuoka 819-0395Japan

Biological cells exhibit diverse phenomena induced through linking of chemical reactions of molecules and solid surface *** is then a significant topic in the field of chemistry to study phenomena induced through this linking using synthetic systems,which can promote our understanding of biological phenomena and can be applied to the development of novel *** nanoparticles(sNPs),which are synthetic inorganic materials,are attractive for such purposes,because of their following characteristics:they can adsorb large amounts of molecules on their surfaces,they can aggregate through contact between SNPs as well as contact between molecules and SNPs,and the molecules can be easily removed from solutions by *** contact of sNP surfaces with molecules then affects chemical reactions of molecules and also behaviors of *** article describes systems derived from synthetic helical molecules and sNPs,which exhibit notable phenomena including selective adsorption and molecular recognition,equilibrium shift,step kinetics with induction period,precipitation with flow and sweeping,and disaggregation and desorption by sonication,in which the high affinity of helical molecules with sNP surfaces plays important *** models that explain the phenomena are *** applications are also discussed,including the separation of molecules,capture of intermediates,the storage and release of molecules,equilibrium shift,clocking,and the translation of mechanical stimulations into chemical reactions.

关键词： Silica nanoparticles Chemical reactions Molecular recognition Linking Nanoparticles Adsorption Chirality Precipitation

Ultra-efficient and parameter-free computation of submicron thermal transport with phonon Boltzmann transport equation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Fundamental Research 2024年第4期4卷 907-915页

作者： yue Hu Yongxing Shen Hua bao University of Michigan-Shanghai Jiao Tong University Joint Institute Shanghai Jiao Tong UniversityShanghai 200240China

Understanding thermal transport at the submicron scale is crucial for engineering applications,especially in the thermal management of electronics and tailoring the thermal conductivity of thermoelectric *** the submicron scale,the macroscopic heat diffusion equation is no longer valid and the phonon Boltzmann transport equation(BTE)becomes the governing equation for thermal ***,previous thermal simulations based on the phonon BTE have two main limitations:relying on empirical parameters and prohibitive computational ***,the phonon BTE is commonly used for qualitatively studying the non-Fourier thermal transport phenomena of toy *** this work,we demonstrate an ultra-efficient and parameter-free computational method of the phonon BTE to achieve quantitatively accurate thermal simulation for realistic materials and *** properly integrating the phonon properties from first-principles calculations,our method does not rely on empirical material properties *** can be generally applicable for different materials and the predicted results can match well with experimental ***,by developing a suitable ensemble of advanced numerical algorithms,our method exhibits superior numerical *** full-scale(from ballistic to diffusive)thermal simulation of a 3-dimensional fin field-effect transistor with 13 million degrees of freedom,which is prohibitive for existing phonon BTE solvers even on supercomputers,can now be completed within two hours on a single personal *** method makes it possible to achieve the predictive design of realistic nanostructures for the desired thermal *** also enables accurately resolving the temperature profiles at the transistor level,which helps in better understanding the self-heating effect of electronics.

关键词： Submicron thermal transport Boltzmann transport equation Deterministic numerical method Phonon transport Transistors Nanostructured materials

DG Hosting Capacity Assessment Considering Dependence Among Wind Speed,Solar Radiation,and Load Demands

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

CSEE Journal of Power and Energy Systems 2024年第3期10卷 1011-1025页

作者： Junyi Yang Jiangmin bao Yuhan Hou Han Wu Qiang Li yue Yuan Hohai University Nanjing 211100China State Grid Jiangsu Electric Power Co. Ltd.Suzhou Power Supply BranchSuzhou 215004China Nanjing Institute of Technology Nanjing 211167China Electric Power Research Institute of State Grid Jiangsu Electric Power Co.Ltd. Nanjing 211103China IEEE CSEE

Dependence of distributed generation(DG)outputs and load plays an essential role in renewable energy *** paper presents a novel DG hosting capacity(DGHC)evaluation method for distribution networks considering highdimensional dependence relations among solar radiation,wind speed,and various load types(i.e.,commercial,residential,and industrial).First,an advanced dependence modeling method called regular vine(R-vine)is applied to capture the complex dependence structure of solar radiation,wind speed,commercial loads,industrial loads,and residential ***,a chanceconstrained DGHC evaluation model is employed to figure out maximum hosting capacity of each DG and its optimal allocation plan with different operational ***,a Benders decomposition algorithm is also employed to reduce computational *** proposed approaches are validated using a set of historical data from *** show dependence among different DGs and loads has significant impact on hosting *** also suggest using the R-vine model to capture dependence among distributed energy resources(DERs)and *** finding provides useful advice for distribution networks in installing renewable energy generations.

关键词： Benders decomposition correlation DG hosting capacity regular vine

Comparison of corrosion mechanisms of 510L low alloy steel treated by ACS and EPS techniques under various service environments

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Iron and Steel Research International 2024年第2期31卷 501-518页

作者： bao-sheng Liu Peng-fei Xu Shao-hua Zhang Yan-rui Li Li-ming Mou Jia-li Li yue-zhong Zhang Pei-mao Fu Fa-cai Shi College of Materials Science and Engineering Taiyuan University of Science and TechnologyTaiyuan030024ShanxiChina College of Chemical and Biological Engineering Taiyuan University of Science and TechnologyTaiyuan030024ShanxiChina Technical Center Taiyuan Iron and Steel(Group)Co.Ltd.Taiyuan030003ShanxiChina

The corrosion mechanism of 510L low alloy steel treated by acid-cleaned surface(ACS)and eco-pickled surface(EPS)techniques in three simulated solutions(S0:atmospheric environment;S1:soil environment;S2:industrial environment)and the influence of interaction between different corrosive anions on corrosion were *** results show that the total corrosion rates of samples in three simulated solutions were in order of S2>S0>S1,which is simultaneously correlated with initial corrosion dissolution processes as well as after the formation of corrosion ***3−will inhibit the initial corrosion owing to the formation of films,whereas HSO3−will accelerate the dissolutions of the matrix based on the synergistic action of HSO3−and Cl−.On the other hand,there is no significant difference in corrosion rates between the samples treated by ACS and EPS *** EPS technique that is safe,reusable and environmentally friendly can be further widely used in future work.

关键词： Corrosion mechanism Low alloy steel Simulated solution Surface technique Immersion time

Metal-Organic Framework Enabling Poly(Vinylidene Fluoride)-Based Polymer Electrolyte for Dendrite-Free and Long-Lifespan Sodium Metal Batteries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Energy & Environmental Materials 2024年第1期7卷 68-76页

作者： Yusi Lei Liang yue Yuruo Qi Yubin Niu Shujuan bao Jie Song Maowen Xu Faculty of Materials and Energy Institute for Clean Energy&Advanced MaterialsSouthwest UniversityChongqing 400715China Shandong Zero-One-Four Advanced Materials Co. Ltd.Feicheng 271099China

Sodium dentrite formed by uneven plating/stripping can reduce the utilization of active sodium with poor cyclic stability and,more importantly,cause internal short circuit and lead to thermal runaway and ***,sodium dendrites and their related problems seriously hinder the practical application of sodium metal batteries(SMBs).Herein,a design concept for the incorporation of metal-organic framework(MOF)in polymer matrix(polyvinylidene fluoride-hexafluoropropylene)is practiced to prepare a novel gel polymer electrolyte(PH@MOF polymer-based electrolyte[GPE])and thus to achieve high-performance *** addition of the MOF particles can not only reduce the movement hindrance of polymer chains to promote the transfer of Na^(+)but also anchor anions by virtue of their negative charge to reduce polarization during electrochemical reaction.A stable cycling performance with tiny overpotential for over 800 h at a current density of 5 mA cm^(-2)with areal capacity of 5 mA h cm^(-2)is achieved by symmetric cells based on the resulted GPE while the Na_(3)V_(2)O_(2)(PO_(4))_(2)F@rGO(NVOPF)|PH@MOF|Nacell also displays impressive specific cycling capacity(113.3 mA h g^(-1)at 1 C)and rate capability with considerable capacity retention.

关键词： dendrite-free gel polymer electrolyte metal organic framework sodium batteries

维普期刊数据库

Effects of virtual agents on interaction efficiency and environmental immersion in MR environments

在线全文

学校读者我要写书评

暂无评论

虚拟现实与智能硬件（中英文） 2024年第2期6卷 169-179页

作者： Yihua bao Jie GUO Dongdong WENG yue LIU Zeyu TIAN Beijing Engineering Research Center of Mixed Reality and Advanced Display Beijing Institute of TechnologyBeijing 100081China Pengcheng Laboratory Shenzhen 518038China

Background Physical entity interactions in mixed reality(MR)environments aim to harness human capabilities in manipulating physical objects,thereby enhancing virtual environment(VEs)*** MR,a common strategy is to use virtual agents as substitutes for physical entities,balancing interaction efficiency with environmental ***,the impact of virtual agent size and form on interaction performance remains *** Two experiments were conducted to explore how virtual agent size and form affect interaction performance,immersion,and preference in MR *** first experiment assessed five virtual agent sizes(25%,50%,75%,100%,and 125%of physical size).The second experiment tested four types of frames(no frame,consistent frame,half frame,and surrounding frame)across all agent ***,utilizing a head mounted display,performed tasks involving moving cups,typing words,and using a *** completed questionnaires assessing aspects such as the virtual environment effects,interaction effects,collision concerns,and *** Results from the first experiment revealed that agents matching physical object size produced the best overall *** second experiment demonstrated that consistent framing notably enhances interaction accuracy and speed but reduces *** balance efficiency and immersion,frameless agents matching physical object sizes were deemed *** Virtual agents matching physical entity sizes enhance user experience and interaction ***,familiar frames from 2D interfaces detrimentally affect interaction and immersion in virtual *** study provides valuable insights for the future development of MR systems.

关键词： Mixed reality Virtual agents Interaction performance Environmental immersion Virtual environments

维普期刊数据库

Accumulated-state-error-based event-triggered sampling scheme and its application to H∞ control of sampled-data systems

在线全文

学校读者我要写书评

暂无评论

Science China(Information Sciences) 2024年第6期67卷 328-341页

作者： Xian-ming ZHANG Qing-Long HAN bao-Lin ZHANG Xiaohua GE Dawei ZHANG School of Science Computingand Engineering TechnologiesSwinburne University of Technology College of Automation and Electronic Engineering Qingdao University of Science & Technology School of Mathematics Shandong University

This paper is concerned with event-triggered H∞control of sampled-data systems. Its novelties lie in three aspects:（i） A novel accumulated-state-error-based event-triggered scheme is introduced by comparing the integral of the state error from tk to t with the system state sampled at tk. This condition works well due to the fact that the so-called Zeno behaviour does not occur.（ii） A novel Lyapunov functional is constructed to establish a criterion to ensure some certain H∞performance of the closed-loop system. This Lyapunov functional is dependent on the integral of the state error involved in the event-triggered scheme.（iii） Under the event-triggered sampling scheme, suitable state-feedback controllers can be designed rather than be given a priori. Moreover, a self-triggered implementation of the proposed event-triggered sampling scheme is presented as well. Finally, a batch reactor model and an inverted pendulum system are given to demonstrate the effectiveness of the proposed method.

关键词： event-triggered sampling self-triggered implementation $H_\infty$ control looped-functional