检索结果-内蒙古大学图书馆

SSRN 2024年

作者： Liu, Jianwei Zhu, Lei Wang, Jianan Chai, Qinqin Sun, Shiyi Chen, Xin Wang, Xue Zhang, Yating Yan, Wei College of Chemistry and Chemical Engineering Xi’an University of Science and Technology Shaanxi Xi’an710054 China Key Laboratory of Multiphase Flow in Power Engineering Xi’an Jiao tong University Shaanxi Xi’an710049 China Xianggui Manganese Industry Co. Ltd. Shaanxi Province Ziyang County725300 China School of Physics and Electrical Engineering Weinan Normal University Shaanxi Weinan714099 China Xi'an Hantang Analysis & Test Co. Ltd Xi’an710201 China

Safety concerns have perennially impeded the large-scale implementation of high-energy-density storage systems. Nevertheless, because the intrinsic drawbacks of the commercial polyolefin separator are poor thermal stability and low flammability with a large thermal contribution, the development of an advanced separator that solves the above questions is imminent. In this work, gradient flame-retardant aramid nanofiber separators (T-PMIA) were synthesized by a single-step electrospinning method. The T-PMIA separator demonstrates excellent Li-ion diffusion and proficiently suppresses the "shuttle effect" through its plentiful multilevel beaded structure and robust anchoring of soluble polysulfides (Li2Sx), achieved by optimizing the functional groups P and -P-O. Moreover, the enhanced separator exhibits a rapid self-extinguishing feature (self-extinguishing time: 0.20 s) and impressive mechanical properties (tensile strength of up to 12.58 MPa and puncture force of 0.94 N). Accordingly, the T-PMIA separator still showed a stable cycling performance (maintain 901.7 mAg-1 after 100 cycles) even at high temperature (80 ℃). This simple separator strategy offers a highly competitive option for the large-scale production of high-safety lithium-sulfur (Li-S) batteries. This uncomplicated separator strategy presents a compelling solution for the large-scale production of high-safety lithium-sulfur (Li-S) batteries © 2024, The Authors. All rights reserved.

关键词： Separators

来源：评论

学校读者我要写书评

暂无评论

Shaped Photocatalysts: Surface Activation of Faceted Photocatalyst: When Metal Cocatalyst Determines the Nature of the Facets (Adv. Sci. 11/2015)

引用

Advanced Science 2015年第11期2卷 n/a-n/a页

作者： Bin Wang Maochang Liu Zhaohui Zhou Liejin Guo International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow Xi'an Jiaotong University Xi'an Shaanxi 710049 P.R. China

来源：评论

学校读者我要写书评

暂无评论

第13届亚洲化学大会论文摘要——Fluidized Bed Reactor Scale-up for Magnetizing Roasting of Low-Grade Chinese Characteristic Iron Ore

引用

华东理工大学学报（自然科学版） 2010年第1期36卷 81-81页

作者： ZHU Qing-shan XIE Zhao-hui LI Hong-zhong State Key Laboratory of Multiphase Complex System Institute of Process Engineering Chinese Academy of Sciences PO Box 353 Beijing 100190 China

来源：评论

学校读者我要写书评

暂无评论

Corrosion Resistance Enhancement of Electrodeposition Ni-P Coating by Incorporation of Ti3c2tx/Mos2 Particles with Sandwich-Like Hierarchical Structure

SSRN

引用

SSRN 2022年

作者： Du, Yingchao Zhang, Xiaomeng Han, Peiwei School of Electrical and Inforrnation Automation Qufu Normal University Shandong Province Rizhao276826 China State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences PO Box 353 Beijing100190 China Innovation Academy for Green Manufacture Chinese Academy of Science Beijing100190 China

In this work, Ti3C2Tx/MoS2 particles with sandwich-like hierarchical structure are incorporated into the Ni-P coating by the simple electrodeposition. The addition of Ti3C2Tx/MoS2 particles can make the coating surface with much nodositas and layered "cauliflower" structure possessing the wettability of hydrophobicity. Then, the corrosion resistance increases much by the incorporation of Ti3C2Tx/MoS2 particles and the resistance of Ni-P-Ti3C2Tx/MoS2 composite coating first decreases and then increases with the prolonging immersion time. The corrosion mechanism of the Ni-P-Ti3C2Tx/MoS2 composite coating is analyzed and the role of Ti3C2Tx/MoS2 particles in Ni-P coating is discussed. © 2022, The Authors. All rights reserved.

关键词： Corrosion resistance

来源：评论

学校读者我要写书评

暂无评论

精准医学智能决策支持系统PreMedKB的构建与临床应用（英文）

精准医学智能决策支持系统PreMedKB的构建与临床应用（英文）

引用

2019中国化学会第十五届全国计算（机）化学学术会议

作者：郁颖 Jingcheng Yang Yunjin Wang Zipeng Lin Zhaojie Xia Xiangyu Zhang Kailiang Jin Yuanting Zheng Li Guo Leming Shi 复旦大学 State Key Laboratory of Genetic Engineering School of Life Sciences and Shanghai Cancer Hospital/Cancer Institute Fudan University State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences *** Co. Ltd.

One important aspect of precision medicine aims to deliver the right medicine to the right patient at the right dose at the right time based on the unique ‘omics' features of each individual patient, thus maximizing drug efficacy and minimizing adverse drug reactions. However, fragmentation and heterogeneity of available data makes it challenging to readily obtain first-hand information regarding some particular diseases, drugs, genes and variants of interest. Furthermore, facing a large number of variants derived from the sequencing analysis results of different patients, there is an urgent need for an infrastructure to perform simple, quick, and routine annotations of multi-dimensional data. Therefore, we developed an intelligent decision-making system for precision medicine, including a Precision Medicine Knowledgebase(PreMedKB) and a Personal Genome Interpreter(PGI). PreMedKB was built by seamlessly integrating the four fundamental components of precision medicine: diseases, genes, variants and drugs. PreMedKB allows for search of comprehensive information within each of the four components, and the relationships between any two or more components. PreMedKB is an efficient and user-friendly tool to assist researchers, clinicians or patients in interpreting a patient's genetic profile in terms of discovering potential pathogenic variants, recommending therapeutic regimens, designing panels for genetic testing kits, and matching patients for clinical trials. Pre Med KB is freely accessible and available at http://***/premedkb/***#/home[1]. Based on the knowledgebase of PreMedKB, PGI was then developed by integrating genomic variants, clinical information and disease-specific knowledge for drug recommendation. It is used for intelligently interpreting clinical meanings of a cancer patient's genetic variants in terms of disease diagnosis, prognosis, treatment selection and pathogenicity. The intelligent decision-making system for precision medic

关键词： Precision medicine knowledgebase genomic decision-making system

来源：评论

学校读者我要写书评

暂无评论

Coupling p+n field-effect transistor circuits for low concentration methane gas detection

引用

Sensors (Switzerland) 2018年第3期18卷 787-787页

作者： Zhou, Xinyuan Yang, Liping Bian, Yuzhi Ma, Xiang Han, Ning Chen, Yunfa State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China University of Chinese Academy of Sciences No. 19A Yuquan Road Beijing100049 China Center for Excellence in Regional Atmospheric Environment Institute of Urban Environment Chinese Academy of Sciences Xiamen361021 China

Nowadays, the detection of low concentration combustible methane gas has attracted great concern. In this paper, a coupling p+n field effect transistor (FET) amplification circuit is designed to detect methane gas. By optimizing the load resistance (RL), the response to methane of the commercial MP-4 sensor can be magnified ~15 times using this coupling circuit. At the same time, it decreases the limit of detection (LOD) from several hundred ppm to ~10 ppm methane, with the apparent response of 7.0 ± 0.2 and voltage signal of 1.1 ± 0.1 V. This is promising for the detection of trace concentrations of methane gas to avoid an accidental explosion because its lower explosion limit (LEL) is ~5%. The mechanism of this coupling circuit is that the n-type FET firstly generates an output voltage (VOUT) amplification process caused by the gate voltage-induced resistance change of the FET. Then, the p-type FET continues to amplify the signal based on the previous VOUT amplification process. © 2018 by the authors. Licensee MDPI, Basel, Switzerland.

关键词： Field effect transistors

来源：评论

学校读者我要写书评

暂无评论

Condensation of Eigen microstate in statistical ensemble and phase transition

arXiv

引用

arXiv 2018年

作者： Hu, Gaoke Liu, Teng Liu, Maoxin Chen, Wei Chen, Xiaosong Institute of Theoretical Physics Key Laboratory of Theoretical Physics Chinese Academy of Sciences P.O. Box 2735 Beijing100190 China School of Systems Science Beijing Normal University Beijing100875 China School of Physical Sciences University of Chinese Academy of Science No. 19A Yuquan Road Beijing100049 China State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China State Key Laboratory of Information Photonics and Optical Communications & School of Science Beijing University of Posts and Telecommunications Beijing100876 China

In a statistical ensemble with M microstates, we introduce an M × M correlation matrix with the correlations between microstates as its elements. Using eigenvectors of the correlation matrix, we can define eigen microstates of the ensemble. The normalized eigenvalue by M represents the weight factor in the ensemble of the corresponding eigen microstate. In the limit M → ∞, weight factors go to zero in the ensemble without localization of microstate. The finite limit of weight factor when M → ∞ indicates a condensation of the corresponding eigen microstate. This indicates a phase transition with new phase characterized by the condensed eigen microstate. We propose a finite-size scaling relation of weight factors near critical point, which can be used to identify the phase transition and its universality class of general complex systems. The condensation of eigen microstate and the finite-size scaling relation of weight factors have been confirmed by the Monte Carlo data of one-dimensional and two-dimensional Ising models. Copyright © 2018, The Authors. All rights reserved.

关键词： Condensation

来源：评论

学校读者我要写书评

暂无评论

Beam dynamics induced by the quantum metric of exceptional rings

arXiv

引用

arXiv 2024年

作者： Zhang, Zhaoyang Septembre, Ismaël Liu, Zhenzhi Kokhanchik, Pavel Liang, Shun Liu, Fu Li, Changbiao Wang, Hongxing Liu, Maochang Zhang, Yanpeng Xiao, Min Malpuech, Guillaume Solnyshkov, Dmitry Key Laboratory for Physical Electronics and Devices The Ministry of Education Shaanxi Key Lab of Information Photonic Technique School of Electronic Science and Engineering Faculty of Electronics and Information Xi’an Jiaotong University Xi’an710049 China Institut Pascal PHOTON-N2 Université Clermont Auvergne CNRS Clermont INP Clermont-FerrandF-63000 France Naturwissenschaftlich-Technische Fakultät Universität Siegen Walter-Flex-Straße 3 Siegen57068 Germany International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power Engineering Xi’an Jiaotong University Xi’an710049 China Department of Physics University of Arkansas FayettevilleAR72701 United States Paris75231 France

Topological physics has broadened its scope from the study of topological insulating phases to include nodal phases containing band structure singularities. The geometry of the corresponding quantum states is described by the quantum metric which provides a theoretical framework for explaining phenomena that conventional approaches fail to address. The field has become even broader by encompassing non-Hermitian singularities: in addition to Dirac, Weyl nodes, or nodal lines, it is now common to encounter exceptional points, exceptional or Weyl rings, and even Weyl spheres. They give access to fascinating effects that cannot be reached within the Hermitian picture. However, the quantum geometry of non-Hermitian singularities is not a straightforward extension of the Hermitian one, remaining far less understood. Here, we study experimentally and theoretically the dynamics of wave packets at exceptional rings stemming from Dirac points in a photonic honeycomb lattice. First, we demonstrate a transition between conical diffraction and non-Hermitian broadening in real space. Next, we predict and demonstrate a new non-Hermitian effect in the reciprocal space, induced by the non-orthogonality of the eigenstates. We call it transverse non-Hermitian drift, and its description requires biorthogonal quantum metric. The non-Hermitian drift can be used for applications in beam steering. Copyright © 2024, The Authors. All rights reserved.

关键词： Topology

来源：评论

学校读者我要写书评

暂无评论

Direct reduction of iron-ore with hydrogen in fluidized beds: A coarse-grained CFD-DEM-IBM study

arXiv

引用

arXiv 2023年

作者： Lan, Bin Xu, Ji Lu, Shuai Liu, Yige Xu, Fan Zhao, Bidan Zou, Zheng Zhai, Ming Wang, Junwu School of Energy Science and Engineering Harbin Institute of Technology Harbin150001 China State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences P. O. Box 353 Beijing100190 China School of Chemical Engineering University of Chinese Academy of Sciences Beijing100049 China Innovation Academy for Green Manufacture Chinese Academy of Sciences Beijing100190 China

Hydrogen metallurgy technology uses hydrogen as the reducing agent instead of carbon reduction, which is one of the important ways to reduce carbon dioxide emissions and ensure the green and sustainable development of iron and steel industry. Due to the advantages of high gas-solid contact efficiency and outstanding mass and heat transfer, direct reduction of iron ore in fluidized beds has attracted much attention. In this study, a coarse-grained CFD-DEM-IBM solver based on hybrid CPU-GPU computing is developed to simulate the direct reduction process of two kinds of iron ore with hydrogen in fluidized beds, where an unreacted shrinking core model based on multiple reaction paths is used to model the reduction reactions, a coarse-grained model and multiple GPUs enable the significant acceleration of particle computation, and the immersed boundary method (IBM) enables the use of simple mesh even in complex geometries of reactors. The predicted results of particle reduction degree are in good agreement with the experimental values, which proves the correctness of the CFD-DEM-IBM solver. In addition, the effects of reaction kinetic parameters and operating temperature on particle reduction degree are also investigated. Present study provides a method for digital design, optimization and scale-up of ironmaking reactors. Copyright © 2023, The Authors. All rights reserved.

关键词： Iron ores

来源：评论

学校读者我要写书评

暂无评论

Discrete Unified Gas-Kinetic Wave-Particle Method for flows in All flow Regimes

SSRN

引用

SSRN 2022年

作者： Yang, L.M. Li, Z.H. Shu, C. Liu, Y.Y. Liu, W. Wu, J. Department of Aerodynamics College of Aerospace Engineering Nanjing University of Aeronautics and Astronautics Nanjing210016 China State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics and Astronautics Nanjing210016 China Key Laboratory of Unsteady Aerodynamics and Flow Control Ministry of Industry and Information Technology Nanjing210016 China Hypervelocity Aerodynamics Institute China Aerodynamics Research and Development Center Mianyang621000 China National Laboratory for Computational Fluid Dynamics Beijing100191 China Department of Mechanical Engineering National University of Singapore Singapore117576 Singapore

This work proposes a discrete unified gas-kinetic wave-particle (DUGKWP) method for simulation of flows in all flow regimes. Unlike the discrete velocity method (DVM) and the direct simulation Monte Carlo (DSMC) method which solve the governing equations by either the deterministic method or the stochastic method, the DUGKWP combines the advantages of these two methods. In the DUGKWP, the information of microscopic particles as well as macroscopic flow variables are both evolved. Specifically, the microscopic particles are updated by the free-transport and resampling processes, while the macroscopic flow properties are evolved through solving the macroscopic governing equations of conservation laws with the finite volume method. According to the discrete characteristic solution to the Boltzmann-BGK equation utilized in the DUGKWP, in the highly rarefied flow regime, the motion of microscopic particles greatly determines the fluxes for the macroscopic governing equations. Conversely, for the continuum flow, no microscopic particle exists in the computational domain and the DUGKWP is degraded to the Navier-Stokes’ solver. Numerical studies validate that the DUGKWP can accurately predict the flow properties in all flow regimes. Furthermore, compared with the deterministic method, the DUGKWP enjoys superior efficiency with less memory consumption for both high-speed rarefied flows and flows close to the continuum regime. © 2022, The Authors. All rights reserved.

关键词： Navier Stokes equations

来源：评论

学校读者我要写书评

暂无评论

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

请选择保存的检索档案：

请选择收藏分类：

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

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

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：