检索结果-南通市图书馆

Trend of Developing Aqueous Liquid and Gel Electrolytes for Sustainable,Safe,and High‑Performance Li‑Ion Batteries

Nano-Micro Letters 2024年第1期16卷 17-34页

作者： Donghwan ji Jaeyun Kim School of Chemical Engineering Sungkyunkwan University(SKKU)Suwon 16419Republic of Korea Department of Health Sciences and Technology Samsung Advanced Institute for Health Sciences&Technology(SAIHST)Sungkyunkwan University(SKKU)Suwon 16419Republic of Korea Biomedical Institute for Convergence at SKKU(BICS) Sungkyunkwan University(SKKU)Suwon 16419Republic of Korea Institute of Quantum Biophysics(IQB) Sungkyunkwan University(SKKU)Suwon 16419Republic of Korea Present Address:Department of NanoEngineering University of California San DiegoLa JollaSan DiegoCA 92093USA

Current lithium-ion batteries(LIBs)rely on organic liquid electrolytes that pose significant risks due to their flammability and *** potential for environmental pollution and explosions resulting from battery damage or fracture is a critical ***-based(aqueous)electrolytes have been receiving attention as an alternative to organic ***,a narrow electrochemicalstability window,water decomposition,and the consequent low battery operating voltage and energy density hinder the practical use of aqueous ***,developing novel aqueous electrolytes for sustainable,safe,high-performance LIBs remains *** Review first commences by summarizing the roles and requirements of electrolytes–separators and then delineates the progression of aqueous electrolytes for LIBs,encompassing aqueous liquid and gel electrolyte development trends along with detailed principles of the *** aqueous electrolytes are progressed based on strategies using superconcentrated salts,concentrated diluents,polymer additives,polymer networks,and artificial passivation layers,which are used for suppressing water decomposition and widening the electrochemical stability window of water of the *** addition,this Review discusses potential strategies for the implementation of aqueous Li-metal batteries with improved electrolyte–electrode interfaces.A comprehensive understanding of each strategy in the aqueous system will assist in the design of an aqueous electrolyte and the development of sustainable and safe high-performance batteries.

关键词： Lithium-ion battery(LIB) Aqueous electrolyte Gel electrolyte Electrochemical stability window Li dendrite

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Flow characteristics of nonspherical granular materials simulated with multi-superquadric elements

引用

Particuology 2021年第1期19卷 25-36页

作者： Siqiang Wang Shunying ji State Key Laboratory of Structural Analysis for Industrial Equipment Dalian University of TechnologyDalian 116023China

The superquadric equation is typically used to mathematically describe nonspherical particles and construct particle shapes with different surface sharpness and aspect ***,nonspherical elements constructed using the superquadric equation are strictly convex,limiting their engineering *** this study,a multi-superquadric model based on a superquadric equation is *** model combines several superquadric elements that can be used to construct concave and convex particle *** tests are performed to examine the applicability of the multi-superquadric *** first involves a comparison of theoretical results for a single spherocylinder impacting a flat *** second involves the formation of a nonspherical granular *** third investigates the effects of the particle shape on the hopper discharge and angle of *** final test evaluates the mixing behaviors of granular materials within a horizontally rotating *** tests demonstrate the applicability of the multi-superquadric approach to nonspherical granular ***,the effects of particle shape on the packing density,discharge rate,angle of repose,and Lacey mixing index are *** indicate that concave particles have a lower packing density,flow rate,and mixing rate and higher angles of repose than convex *** of elements becomes more pronounced for concave particles and results in local cluster structures,thereby enhancing the stability of granular systems and limiting sliding or rotation between nonspherical particles.

关键词： Multi-superquadric approach Nonspherical elements Concave particles Discrete element method Granular materials

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Photocatalytic activation of sulfite by N-doped porous biochar/MnFe_(2)O_(4) interface-driven catalyst for efficient degradation of tetracycline

引用

Green Energy & Environment 2024年第3期9卷 481-494页

作者： Long Cheng Yuanhui ji jiangsu Province Hi-Tech Key Laboratory for Biomedical Research School of Chemistry and Chemical EngineeringSoutheast UniversityNanjing211189China

A novel photo-catalytic system composed of N-doped biochars(NBCs),MnFe_(2)O_(4) and sulfite activation under ultraviolet(NBCs/MnFe_(2)O_(4)/sulfite/UV)was constructed to realize the efficient eliminate of tetracycline(TC).As the carrier of MnFe_(2)O_(4),NBCs were synthesized from alfalfa,which has large specific surface area,graphite like structure and hierarchical porous *** adsorption isotherm indicated that NBCs/MnFe_(2)O_(4)-2:1 had the best adsorption performance for TC(347.56 mg g^(-1)).Through synergistic adsorption and photocatalysis,the removal rate of TC reached 84%,which was significantly higher than that of MnFe_(2)O_(4).Electrochemical impedance spectroscopy(EIS)and Photoluminescence(PL)characterization results showed that the introduction of NBCs improved the separation efficiency of photogenerated electron and hole pairs and enhanced the photocatalytic ***,the adsorption,degradation mechanism and degradation path of TC by the catalyst were systematically analyzed by coupling HPLC–MS measurement with the theoretical *** the advantages of excellent degradation performance,low cost,easy separation and environmental friendliness of NBCs/MnFe_(2)O_(4),this work was expected to provide a new path for the practical application of biochar.

关键词： Biochar MnFe_(2)O_(4) Sulfite Adsorption Photocatalysis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Quantum anomalous energy effects on the nucleon mass

引用

Science China(Physics,Mechanics & Astronomy) 2021年第8期64卷 23-28页

作者： Xiangdong ji Yizhuang Liu Center for Nuclear Femtography Southeastern Universities Research AssociationWashington DC 20005USA Department of Physics University of MarylandCollege ParkMD 20742USA Tsung-Dao Lee Institute Shanghai Jiao Tong UniversityShanghai 200240China Institute fur Theoretische Physik Universitat RegensburgRegensburg D-93040Germany

Apart from the quark and gluon kinetic and potential energies, the nucleon mass includes a novel energy of pure quantum origin resulting from anomalous breaking of scale symmetry. We demonstrate the effects of this quantum anomalous energy(QAE) in QED, as well as in a toy 1+1 dimensional non-linear sigma model where it contributes non-perturbatively, in a way resembling the Higgs mechanism for the masses of matter particles in electro-weak theory. The QAE contribution to the nucleon mass can be explained using a similar mechanism, in terms of a dynamical response of the gluonic scalar field through Higgs-like couplings between the nucleon and scalar resonances. In addition, the QAE sets the scale for other energies in the nucleon through a relativistic virial theorem, and contributes a negative pressure to confine the colored quarks.

关键词： proton mass quantum anomaly spontaneous symmetry breaking scale symmetry

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

An improved prediction model for corner stall in axial compressors with dihedral effect

引用

Chinese Journal of Aeronautics 2020年第5期33卷 1433-1443页

作者： jiabin LI Lucheng ji School of Aerospace Engineering Beijing Institute of TechnologyBeijing 100081China

Corner stall predictions are important and difficult in axial ***,all of the prediction models have proved to be ineffective for advanced compressor blades,which tend to use the combined sweep and *** for the prediction parameter DL,although it effectively modeled the effects of the adverse pressure gradient and secondary flow,it failed to predict the corner stall of curved blades because the model failed to consider the intersection of the boundary layer at the corner *** this paper,the shape factor gradientψof the boundary layer at the corner region was investigated by numerically studying specially shaped expansion pipes under different adverse pressure *** improved prediction parameter DJ was presented based on the model of ψ and the circumferential pressure gradient ζ.A comparison of the critical range of the prediction parameters DL and DJ was investigated using the NACA65 cascade database,which was established by a numerical ***,the stall criterion was validated according to the experimental results of various test facilities with different blade geometries and experimental *** results show that the improved prediction parameter is able to predict the corner separation/stall flows and is in good agreement with the experimental results for axial compressors with three-dimensional designed blades.

关键词： Axial compressor Corner separation/stall prediction Diffusion parameter Dihedral effect Three-dimensional blades

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Cast-rolling force model of multi-roll solid–liquid cast-rolling bonding process for fabricating metal cladding materials

引用

Chinese Journal of Aeronautics 2023年第9期36卷 346-368页

作者： Ce ji Huagui HUANG College of Mechanical and Vehicle Engineering Taiyuan University of TechnologyTaiyuan 030024China Engineering Research Center of Advanced Metal Composites Forming Technology and Equipment of Ministry of Education Taiyuan University of TechnologyTaiyuan 030024China National Key Laboratory of Metal Forming Technology and Heavy Equipment Taiyuan University of TechnologyTaiyuan 030024China College of Mechanical Engineering Yanshan UniversityQinhuangdao 066004China National Engineering Research Center for Equipment and Technology of Cold Strip Rolling Yanshan UniversityQinhuangdao 066004China

Based on twin-roll casting technology and multi-roll groove rolling technology,a Multi-Roll Solid-Liquid Cast-Rolling Bonding(MRSLCRB)process was proposed to fabricate Cu/steel cladding bars,which processes the advantages of short flow and ***,it is a typical 3-D thermal-fluid-mechanics coupled problem,and determining cast-rolling force is difficult during the equipment ***,the geometrical evolution of the cast-rolling area was studied,laying the foundation to establish contact boundary equations and analyze mechanical schematics and metal ***,a 3-D steady-state thermal-fluid coupled simulation model,including casting roll,substrate bar,and cladding metal,was *** Kissing Point(KP)height,average outlet temperature,and process window were predicted,and simulation results of the three-roll layout indicate that the KP distribution along the circumferential direction can be considered ***,the engineering cast-rolling force model was derived based on the differential element method and plane deformation *** accuracy was verified by the 3-D finite element model,and the influences of process layouts and technological parameters on the castrolling force were *** the indirect multi-field coupled analysis method,the temperature–pressure evolution and reasonable process window can be predicted,which provides a significant basis for guiding equipment design and improving product quality.

关键词： Cast-rolling force Kissing point Multi-field coupled Numerical simulation Solid-liquid cast-rolling bonding

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Parton physics from large-momentum effective field theory

引用

Science China(Physics,Mechanics & Astronomy) 2014年第7期57卷 1407-1412页

作者： ji XiangDong INPAC Department of Physics and Astronomy Shanghai Jiao Tong University Maryland Center for Fundamental Physics Department of Physics University of Maryland College Park

Parton physics,when formulated as light-front correlations,are difficult to study non-perturbatively,despite the promise of lightfront *** an alternative approach to partons have been proposed by re-visiting original Feynman picture of a hadron moving at asymptotically large *** I formulate the approach in the language of an effective field theory for a large hadron momentum P in lattice QCD,LaMET for short.I show that using this new effective theory,parton properties,including light-front parton wave functions,can be extracted from lattice observables in a systematic expansion of 1/P,much like that the parton distributions can be extracted from the hard scattering data at momentum scales of a few GeV.

关键词： partons effective field theory lattice QCD high-energy scattering proton structure

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Application of New Empirical Models Based on Mathematical Statistics in the Through-Flow Analysis

引用

Journal of Thermal Science 2021年第6期30卷 2087-2098页

作者： FEI Teng ji Lucheng School of Aerospace Engineering Beijing Institute of TechnologyBeijing 100081China

The through-flow analysis is an important part in the compressor design *** this part,lots of empirical models are used to predict the compressor aerodynamic *** models are all based on the early experimental results of low-load and low-speed compressors;so,they may not be suitable for modern compressor performance *** this study,several empirical models were reviewed,and two new models to estimate the minimum blade profile loss and minimum-loss deviation angle were established using mathematical ***,the original models with poor accuracy were replaced by these two models in through-flow ***,three compressors(Rotor 67,Stage 35,and a 4-stage repeating stage)were simulated using both the original and new *** final results show that the new models have better accuracy in estimating the performance parameters than the original *** indicates that it is feasible to use mathematical statistical methods to establish the empirical models,and this method provides an idea for the improvement of other empirical models in through-flow program.

关键词： through-flow analysis empirical models blade loss deviation regression analysis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

THE ELLIPTIC TYPE NODE CONFIGURATION AND INTERPOLATION IN R^2

引用

Journal of Computational Mathematics 1998年第3期16卷 257-266页

作者： Ping Zhu (ji’an Teachers College, ji’an 543009, jiangxi, China) 吉安师范专科学校江西吉安 343009

In this paper, we have obtained an expression of the bivariate Vandermonde determinant for the Elliptic Type Node Configuration in R-2, and discussed the possibility of the corresponding multivariate Lagrange, Hermite... 详细信息

关键词： multivariate interpolation polynomial interpolation Birkhoff interpolation node configuration

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Probability analysis of contact forces in quasi-solid-liquid phase transition of granular shear flow

引用

Science China(Physics,Mechanics & Astronomy) 2013年第2期56卷 395-403页

作者： ji ShunYing State Key Laboratory of Structural Analysis for Industrial Equipment Dalian University of Technology

The quasi-solid-liquid phase transition exists widely in different fields,and attracts more attention due to its instinctive *** structure of force chains is an important factor to describe the phase transition *** this study,the discrete element model(DEM) is adopted to simulate a simple granular shear flow with period boundary condition on micro *** quasi-solid-liquid phase transition is obtained under various volume fractions and shear *** on the DEM results,the probability distribution functions of the inter-particle contact force are obtained in different shear flow *** normal,tangential and total contact forces have the same *** distribution can be fitted as the exponential function for the liquid-like phase,and as the Weibull function for the solid-like *** describe the progressive evolution of the force distribution in phase transition,we use the Weibull function and Corwin-Ngan function,*** of them can determine the probability distributions in different phases and the Weibull function shows more reasonable ***,the force distributions are discussed to explain the characteristics of the force chain in the phase transition of granular shear *** distribution of the contact force is an indicator to determine the flow phase of granular *** the discussions on the statistical properties of the force chain,the phase transition of granular matter can be well understood.

关键词： granular materials quasi-solid-liquid phase transition force chain statistical characteristics simple shear flow

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：