检索结果-内蒙古大学图书馆

arXiv 2019年

作者： Jiang, Zeyu Lou, Wenkai Liu, Yu Li, Yuanchang Song, Haifeng Chang, Kai Duan, Wenhui Zhang, Shengbai State Key Laboratory of Low-Dimensional Quantum Physics Collaborative Innovation Center of Quantum Matter Department of Physics Tsinghua University Beijing100084 China SKLSM Institute of Semiconductors Chinese Academy of Sciences P.O. Box 912 Beijing100083 China Laboratory of Computational Physics Institute of Applied Physics and Computational Mathematics Beijing100088 China Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing100081 China CAEP Software Center for High Performance Numerical Simulation Beijing100088 China CAS Center for Excellence in Topological Quantum Computation University of Chinese Academy of Sciences Beijing100190 China Institute for Advanced Study Tsinghua University Beijing100084 China Department of Physics Applied Physics and Astronomy Rensselaer Polytechnic Institute TroyNY12180 United States

While various excitonic insulators have been studied in the literature, due to the perceived too-small spin splitting, spin-triplet excitonic insulator is rare. In two-dimensional systems such as a graphone, however, it is possible, as revealed by first-principles calculations coupled with Bethe-Salpeter equation. The critical temperature, given by an effective Hamiltonian, is 11.5 K. While detecting excitonic insulators is still a daunting challenge, the condensation of triplet excitons will result in spin superfluidity, which can be directly measured by a transport experiment. Nonlocal dielectric screening also leads to an unexpected phenomenon, namely, an indirect-to-direct transition crossover between single-particle band and exciton dispersion in graphone, which offers yet another test by experiment. Copyright © 2019, The Authors. All rights reserved.

关键词： Calculations

来源：评论

学校读者我要写书评

暂无评论

Supercapacitors: Inverted Design for High‐Performance Supercapacitor Via Co(OH)2‐Derived Highly Oriented MOF Electrodes (Adv. Energy Mater. 7/2018)

引用

advanced Energy Materials 2018年第7期8卷

作者： Ting Deng Yue Lu Wei Zhang Manling Sui Xiaoyuan Shi Dong Wang Weitao Zheng State Key Laboratory of Automotive Simulation and Control Department of Materials Science and Key Laboratory of Mobile Materials MOE Jilin University Changchun 130012 China Institute of Microstructure and Properties of Advanced Materials Beijing University of Technology Beijing 100124 China CIC Energigune Parque Tecnológico de Álava Miñano 01510 and IKERBASQUE Basque Foundation for Science Bilbao 48013 Spain

来源：评论

学校读者我要写书评

暂无评论

Role of Left-Hand Cut Contributions on Pole Extractions from Lattice Data: Case Study for Tcc(3875)+

引用

Physical Review Letters 2023年第13期131卷 131903-131903页

作者： Meng-Lin Du Arseniy Filin Vadim Baru Xiang-Kun Dong Evgeny Epelbaum Feng-Kun Guo Christoph Hanhart Alexey Nefediev Juan Nieves Qian Wang School of Physics University of Electronic Science and Technology of China Chengdu 611731 China Institut für Theoretische Physik II Ruhr-Universität Bochum D-44780 Bochum Germany CAS Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences Beijing 100190 China School of Physical Sciences University of Chinese Academy of Sciences Beijing 100049 China Peng Huanwu Collaborative Center for Research and Education Beihang University Beijing 100191 China Institute for Advanced Simulation Institut für Kernphysik and Jülich Center for Hadron Physics Forschungszentrum Jülich D-52425 Jülich Germany Jozef Stefan Institute Jamova 39 1000 Ljubljana Slovenia CeFEMA Center of Physics and Engineering of Advanced Materials Instituto Superior Técnico Avenida Rovisco Pais 1 1049-001 Lisboa Portugal Instituto de Física Corpuscular (centro mixto CSIC-UV) Institutos de Investigación de Paterna Apartado 22085 46071 Valencia Spain Guangdong Provincial Key Laboratory of Nuclear Science Institute of Quantum Matter South China Normal University Guangzhou 510006 China Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China Guangdong-Hong Kong Joint Laboratory of Quantum Matter Southern Nuclear Science Computing Center South China Normal University Guangzhou 510006 China

We discuss recent lattice data for the Tcc(3875)+ state to stress, for the first time, a potentially strong impact of left-hand cuts from the one-pion exchange on the pole extraction for near-threshold exotic states. In particular, if the left-hand cut is located close to the two-particle threshold, which happens naturally in the DD* system for the pion mass exceeding its physical value, the effective-range expansion is valid only in a very limited energy range up to the cut and as such is of little use to reliably extract the poles. Then, an accurate extraction of the pole locations requires the one-pion exchange to be implemented explicitly into the scattering amplitudes. Our findings are general and potentially relevant for a wide class of hadronic near-threshold states.

关键词： Hadron-hadron interactions Heavy quark effective theory Lattice QCD Phenomenology Exotic mesons

来源：评论

学校读者我要写书评

暂无评论

Laplacian normalization and random walk on heterogeneous networks for disease-gene prioritization

引用

Computational biology and chemistry 2015年 57卷 21-8页

作者： Zhi-Qin Zhao Guo-Sheng Han Zu-Guo Yu Jinyan Li Hunan Key Laboratory for Computation and Simulation in Science and Engineering and Key Laboratory of Intelligent Computing and Information Processing of Ministry of Education Xiangtan University Xiangtan Hunan 411105 China. Hunan Key Laboratory for Computation and Simulation in Science and Engineering and Key Laboratory of Intelligent Computing and Information Processing of Ministry of Education Xiangtan University Xiangtan Hunan 411105 China School of Mathematical Sciences Queensland University of Technology GPO Box 2434 Brisbane Q4001 Australia. Electronic address: yuzg1970@***. Advanced Analytics Institute & Centre for Health Technologies University of Technology Sydney Broadway NSW 2007 Australia. Electronic address: jinyan.li@uts.edu.au.

Random walk on heterogeneous networks is a recently emerging approach to effective disease gene prioritization. Laplacian normalization is a technique capable of normalizing the weight of edges in a network. We use this technique to normalize the gene matrix and the phenotype matrix before the construction of the heterogeneous network, and also use this idea to define the transition matrices of the heterogeneous network. Our method has remarkably better performance than the existing methods for recovering known gene-phenotype relationships. The Shannon information entropy of the distribution of the transition probabilities in our networks is found to be smaller than the networks constructed by the existing methods, implying that a higher number of top-ranked genes can be verified as disease genes. In fact, the most probable gene-phenotype relationships ranked within top 3 or top 5 in our gene lists can be confirmed by the OMIM database for many cases. Our algorithms have shown remarkably superior performance over the state-of-the-art algorithms for recovering gene-phenotype relationships. All Matlab codes can be available upon email request.

关键词： Disease genes and phenotypes Heterogeneous network Laplacian normalization Leave-one-out cross-validation Random walk with restart Shannon information entropy

来源：评论

学校读者我要写书评

暂无评论

Precise Synthesis of Dual-Single-Atom Electrocatalysts through Pre-Coordination-Directed in Situ Confinement for CO2Reduction

引用

Angewandte Chemie 2024年第3期137卷

作者： Peng Rao Xingqi Han Haochen Sun Fangyuan Wang Ying Liang Jing Li Daoxiong Wu Xiaodong Shi Zhenye Kang Zhengpei Miao Peilin Deng Xinlong Tian School of Marine Science and Engineering Hainan University Haikou 570228 China State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Center for Advanced Low-dimension Materials/Innovation Center for Textile Science and Technology/Institute of Functional Materials/Center for Civil Aviation Composites College of Materials Science and Engineering Donghua University Shanghai 201620 China

Dual-single-atom catalysts (DSACs) are the next paradigm shift in single-atom catalysts because of the enhanced performance brought about by the synergistic effects between adjacent bimetallic pairs. However, there are few methods for synthesizing DSACs with precise bimetallic structures. Herein, a pre-coordination strategy is proposed to precisely synthesize a library of DSACs. This strategy ensures the selective and effective coordination of two metals via phthalocyanines with specific coordination sites, such as −F− and −OH−. Subsequently, in situ confinement inhibits the migration of metal pairs during high-temperature pyrolysis, and obtains the DSACs with precisely constructed metal pairs. Despite changing synthetic parameters, including transition metal centers, metal pairs, and spatial geometry, the products exhibit similar atomic metal pairs dispersion properties, demonstrating the universality of the strategy. The pre-coordination strategy synthesized DSACs shows significant CO 2 reduction reaction performance in both flow-cell and practical rechargeable Zn-CO 2 batteries. This work not only provides new insights into the precise synthesis of DSACs, but also offers guidelines for the accelerated discovery of efficient catalysts.

关键词： Dual-single-atom catalysts bimetallic pairs pre-coordination strategy CO2 reduction reaction synergistic effects

来源：评论

学校读者我要写书评

暂无评论

Effect of the processing parameters of the hot rolling of a stainless austenitic steel on the processes of structural and phase transformation

引用

IOP Conference Series: Materials science and Engineering 2019年第1期672卷

作者： G I Raab V I Semenov P La S V Dobatkin Institute of Physics of Advanced Materials Ufa State Aviation Technical University 12 K. Marx st. Ufa 450008 Russia State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals Lanzhou University of Technology Lanzhou China Baikov Institute of Metallurgy and Materials Science RAS 49 Leninskiy pr. Moscow 119334 Russia Institute of Physics of Advanced Materials Ufa State Aviation Technical University 12 K. Marx st. Ufa 450008 Russia National University of Science and Technology 'MISIS' 4 Leninskiy pr. Moscow 119049 Russia

We studied the mechanism of structure formation of the stainless austenitic steel with the composition 0.09%C, 17.5%Cr, 11.6%Ni, 0.5%Ti (a close analogue of the AISI 304 steel) during hot deformation by rolling at a temperature of 900 °C, strain rates of 0.5-5 s−1 and strains of about 10-60%. It was demonstrated that with increasing strain the fraction of polygonized volumes grows, and inside them the fraction of equiaxed subgrains grows.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Influence of rolling modes and the level of accumulated deformation on the mechanical and plastic properties of stainless austenitic steel AISI 304L

引用

IOP Conference Series: Materials science and Engineering 2020年第1期1008卷

作者： A G Raab G I Raab S V Dobatkin A A Tokar P La Institute of Physics of Advanced Materials Ufa State Aviation Technical University 12 K. Marx st. Ufa 450008 Russia Baikov Institute of Metallurgy and Materials Science RAS 49 Leninskiy pr. Moscow 119334 Russia National University of Science and Technology 'MISIS' 4 Leninskiy pr. Moscow 119049 Russia State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals Lanzhou University of Technology Lanzhou China

The paper presents the results of studies of rolling modes (direct, reverse, cross ones) at 500°C for samples of stainless steel AISI 304L and their influence on mechanical and plastic properties of the material. The stress-strain state was investigated using a numerical simulation program and the deformation parameters of processing were established. The mechanical properties were studied by microhardness measuring and tensile testing methods. The results of the experiment were analyzed and discussed, and conclusions were drawn. The regularities of the effect of strength parameters depending on the modes of processing and accumulated deformation during rolling have been established.

关键词：

来源：评论

学校读者我要写书评

暂无评论

simulation of chiral motion of excitation within the ground-state manifolds of neutral atoms

APL Quantum

引用

APL Quantum 2024年第3期1卷

作者： Hao-Yuan Tang Xiao-Xuan Li Jia-Bin You Xiao-Qiang Shao Center for Quantum Sciences and School of Physics Northeast Normal University Changchun 130024 China Sino-European Institute of Aviation Engineering Civil Aviation University of China Tianjin 300300 China Institute of High Performance Computing A*STAR (Agency for Science Technology and Research) 1 Fusionopolis Way Connexis Singapore 138632 Center for Advanced Optoelectronic Functional Materials Research and Key Laboratory for UV Light-Emitting Materials and Technology of Ministry of Education Northeast Normal University Changchun 130024 China

Laser-induced gauge fields in neutral atoms serve as a means of mimicking the effects of a magnetic field, providing researchers with a platform to explore behaviors analogous to those observed in condensed matter systems under real magnetic fields. Here, we propose a method to generate chiral motion in atomic excitations within the neutral atomic ground-state manifolds. This is achieved through the application of polychromatic driving fields coupled to the ground–Rydberg transition, along with unconventional Rydberg pumping. The scheme offers the advantage of arbitrary adjustment of the effective magnetic flux by setting the relative phases between different external laser fields. In addition, the effective interaction strength between the atomic ground states can be maintained at 10 kHz, surpassing the capabilities of the previous approach utilizing Floquet modulation. Notably, the proposed method can be readily extended to implement a hexagonal neutral atom lattice, serving as the fundamental unit in realizing the Haldane model.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Erratum: “simulation of chiral motion of excitation within the ground-state manifolds of neutral atoms” [APL Quantum 1, 036109 (2024)]

APL Quantum

引用

APL Quantum 2024年第3期1卷

In the original version of this article initially published,1 there were still some typographical errors that should be corrected.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Role of left-hand cut contributions on pole extractions from lattice data: Case study for Tcc(3875)+

arXiv

引用

arXiv 2023年

作者： Du, Meng-Lin Filin, Arseniy Baru, Vadim Dong, Xiang-Kun Epelbaum, Evgeny Guo, Feng-Kun Hanhart, Christoph Nefediev, Alexey Nieves, Juan Wang, Qian School of Physics University of Electronic Science and Technology of China Chengdu611731 China Institut für Theoretische Physik II Ruhr-Universität Bochum BochumD-44780 Germany CAS Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences Beijing100190 China School of Physical Sciences University of Chinese Academy of Sciences Beijing100049 China Peng Huanwu Collaborative Center for Research and Education Beihang University Beijing100191 China Institute for Advanced Simulation Institut für Kernphysik Jülich Center for Hadron Physics Forschungszentrum Jülich JülichD-52425 Germany Jozef Stefan Institute Jamova 39 Ljubljana1000 Slovenia CeFEMA Center of Physics and Engineering of Advanced Materials Instituto Superior Técnico Avenida Rovisco Pais 1 Lisboa1049-001 Portugal Institutos de Investigación de Paterna Apartado 22085 Valencia46071 Spain Guangdong Provincial Key Laboratory of Nuclear Science Institute of Quantum Matter South China Normal University Guangzhou510006 China Institute of High Energy Physics Chinese Academy of Sciences Beijing100049 China Guangdong-Hong Kong Joint Laboratory of Quantum Matter Southern Nuclear Science Computing Center South China Normal University Guangzhou510006 China

We discuss recent lattice data for the Tcc(3875)+ state to stress, for the first time, a potentially strong impact of left-hand cuts from the one-pion exchange on the pole extraction for near-threshold exotic states. In particular, if the left-hand cut is located close to the two-particle threshold, which happens naturally in the DD∗ system for the pion mass exceeding its physical value, the effective-range expansion is valid only in a very limited energy range up to the cut and as such is of little use to reliably extract the poles. Then, an accurate extraction of the pole locations requires the one-pion exchange to be implemented explicitly into the scattering amplitudes. Our findings are general and potentially relevant for a wide class of hadronic near-threshold states. © 2023, CC BY.

关键词： Poles

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：