检索结果-内蒙古大学图书馆

Aligned magnetic field of two-phase mixed convection flow in dusty Casson fluid over a stretching sheet with Newtonian heating

引用

Journal of Physics: Conference Series 2017年第1期890卷

作者： N S Arifin S M Zokri A R M Kasim M Z Salleh N F Mohammad W N S W Yusoff Applied & Industrial Mathematics Research Group Faculty of Industrial Sciences & Technology Universiti Malaysia Pahang 26300 Gambang Kuantan Pahang Malaysia Department of Computational and Theoretical Sciences Kulliyyah of Sciences International Islamic University Malaysia 25200 Kuantan Pahang Malaysia

The effect of aligned magnetic field is numerically investigated for mixed convection flow of dusty Casson fluid over a stretching sheet. The governing equations of flow and heat transfer for the two-phase model (fluid and dust) with an appropriate thermal boundary condition which is Newtonian heating (NH) is presented. The similarity transformation is employed to transform the nonlinear governing equations for each phase into the ordinary differential equations which then solved numerically using Runge-Kutta Fehlberg (RKF45) method. Numerical solutions obtained for velocity and temperature distributions are illustrated through graph by varying several physical parameters. It is observed that the fluid velocity decreases with an increase in aligned magnetic field and particle-fluid interaction parameter.

关键词：

来源：评论

学校读者我要写书评

暂无评论

'Binary Knowledge Model': Specifying, instantiating, and interpreting advanced ontologies 9

'Binary Knowledge Model': Specifying, instantiating, and int...

引用

9th International Conference on Application of Information and Communication Technologies, AICT 2015

作者： Plesniewicz, G.S. Masherov, D.E. Min Vu, Nguen Thi Karabekov, A.B. Applied Mathematics Department National Research University 'Mpei' Moscow Russia Institute of Informational and Computational Technologies MES Almaty Kazakhstan

ISBN: (纸本)9781467368551

'Binary Model of Knowledge' (BMK) is the system of concept-oriented languages intended for specifying and interpreting ontologies with their fact bases (instances). BMK is under development at National Research University 'MPEI' (Moscow, Russia) and at Institute of Informational and computational Technologies (Almaty, Kazakhstan). The BMK languages combine the advantages of frame-based object-oriented formalisms with well defined denotative semantics and RDF-like languages. The brief description of BMK is presented. © 2015 IEEE.

关键词： Ontology

来源：评论

学校读者我要写书评

暂无评论

Spectral representations of one-homogeneous functionals 5

Spectral representations of one-homogeneous functionals

引用

5th International Conference on Scale Space and Variational Methods in Computer Vision, SSVM 2015

作者： Burger, Martin Eckardt, Lina Gilboa, Guy Moeller, Michael Institute for Computational and Applied Mathematics University of Münster Münster Germany Electrical Engineering Department Technion IIT Haifa Israel Department of Mathematics Technische Universität München Munich Germany

ISBN: (纸本)9783319184609

This paper discusses a generalization of spectral representations related to convex one-homogeneous regularization functionals, e.g. total variation or 1-norms. Those functionals serve as a substitute for a Hilbert space structure (and the related norm) in classical linear spectral transforms, e.g. Fourier and wavelet analysis. We discuss three meaningful definitions of spectral representations by scale space and variational methods and prove that (nonlinear) eigenfunctions of the regularization functionals are indeed atoms in the spectral representation. Moreover, we verify further useful properties related to orthogonality of the decomposition and the Parseval identity. The spectral transform is motivated by total variation and further developed to higher order variants. Moreover, we show that the approach can recover Fourier analysis as a special case using an appropriate 1-type functional and discuss a coupled sparsity example. © Springer International Publishing Switzerland 2015.

关键词： Fourier analysis

来源：评论

学校读者我要写书评

暂无评论

Opinion dynamics: Inhomogeneous Boltzmann type equations modelling opinion leadership and political segregation

Opinion dynamics: Inhomogeneous Boltzmann type equations mod...

引用

作者： During, Bertram Wolfram, Marie-Therese Department of Mathematics University of Sussex BrightonBN1 9QH United Kingdom Radon Institute for Computational and Applied Mathematics Austrian Academy of Sciences Linz4040 Austria

We propose and investigate different kinetic models for opinion formation, when the opinion formation process depends on an additional independent variable, e.g. a leadership or a spatial variable. More specifically, we consider (i) opinion dynamics under the effect of opinion leadership, where each individual is characterized not only by its opinion but also by another independent variable which quantifies leadership qualities;(ii) opinion dynamics modelling political segregation in 'The Big Sort', a phenomenon that US citizens increasingly prefer to live in neighbourhoods with politically like-minded individuals. Based on microscopic opinion consensus dynamics such models lead to inhomogeneous Boltzmann-type equations for the opinion distribution. We derive macroscopic Fokker- Planck-type equations in a quasi-invariant opinion limit and present results of numerical experiments. © 2015 The Author(s) Published by the Royal Society. All rights reserved.

关键词： Boltzmann equation

来源：评论

学校读者我要写书评

暂无评论

Universality From Disorder In The Random–Bond Blume–Capel Model

arXiv

引用

arXiv 2017年

作者： Fytas, N.G. Zierenberg, J. Theodorakis, P.E. Weigel, M. Janke, W. Malakis, A. Applied Mathematics Research Centre Coventry University CoventryCV1 5FB United Kingdom Institut für Theoretische Physik Universität Leipzig Postfach 100 920 Leipzig04009 Germany Max Planck Institute for Dynamics and Self-Organization Göttingen37077 Germany Bernstein Center for Computational Neuroscience Göttingen37077 Germany Institute of Physics Polish Academy of Sciences Al. Lotników 32/46 Warsaw02-668 Poland Department of Physics Section of Solid State Physics University of Athens Panepistimiopolis ZografouGR 15784 Greece

Using high-precision Monte Carlo simulations and finite-size scaling we study the effect of quenched disorder in the exchange couplings on the Blume-Capel model on the square lattice. The first-order transition for large crystal-field coupling is softened to become continuous, with a divergent correlation length. An analysis of the scaling of the correlation length as well as the susceptibility and specific heat reveals that it belongs to the universality class of the Ising model with additional logarithmic corrections observed for the Ising model itself if coupled to weak disorder. While the leading scaling behavior in the disordered system is therefore identical between the second-order and first-order segments of the phase diagram of the pure model, the finite-size scaling in the ex-first-order regime is affected by strong transient effects with a crossover length scale L∗ ≈ 32 for the chosen parameters. Copyright © 2017, The Authors. All rights reserved.

关键词： Ising model

来源：评论

学校读者我要写书评

暂无评论

ICTs in the Classroom, Multiliteracy and Special Education: A Required Interface

引用

Creative Education 2016年 7卷 963-970页

作者： Ana Lúcia Manrique Eliana Vianna Brito Kozma Ely Antonio Tadeu Dirani Meire Luci da Silva Annie France Frere Mathematics Education Program PUC-SP Sao Paulo Brazil Master Degree in Applied Linguistics UNITAU Sao Paulo Brazil Department of Engineering PUC-SP Sao Paulo Brazil Department of Physical Therapy and Occupational Therapy UNESP Sao Paulo Brazil Department of Engineering UBC Sao Paulo Brazil

Many children have special difficulties to interact with their counterparts, but use tablets and smartphones with resourcefulness. Cards with graphic symbols are very useful to assist communication. However, the teacher who works in a classroom with forty students in Brazil does not have time to train the special student to properly use this alternative means of communication. Therefore, this research developed and tested an application installed on a smartphone, which identified the communication card and verbalized its meaning, repeating this action as often as necessary without teacher intervention. It also allows one to test the knowledge of students. The system is based on a web application with source code developed by Google and electromagnetic sensors fixed on the cards. The functionality test showed good performance and usability and may be useful in the training of children with communication difficulties.

关键词： ICT Multiliteracy Special Education PECS Autism Spectrum Disorder

来源：评论

学校读者我要写书评

暂无评论

A new approach in image registration

A new approach in image registration

引用

IEEE International Workshop on Imaging Systems and Techniques (IST)

作者： Constantinos Spanakis Emmanuel Mathioudakis Nikos Kampanis Manolis Tsiknakis Kostas Marias Institute of Computer Science Foundation for Research and Technology Greece Technical University of Crete Chania Greece School of Mineral Resources Engineering Technical University of Crete Greece Institute of Applied and Computational Mathematics Foundation for Research and Technology Greece Department of Applied Informatics and Multimedia Technological Educational Institute of Crete

ISBN: (纸本)9781509018185

Evolutionary algorithms are metaheuristic algorithms that mimic biological mechanisms for the solution of optimization problems. They are widely used in many problems of engineering, including image analysis and pattern recognition. Such methods had shown added value in overcoming certain problems and limitations of more traditional methods and approaches. This is particularly interesting in Computer for designing faster and more accurate optimization methods. Despite recent advances in image registration, there is still room for improvement especially with the use of metaheuristic algorithms. In this paper, we present a novel method for solving the automated rigid registration problem by introducing a variant of the relatively new metaheuristic method called harmony search which shows promising results in difficult rigid registration cases.

关键词： Image registration Search problems Radiation detectors Mutual information Electronic mail Standards Optimization

来源：评论

学校读者我要写书评

暂无评论

Switching Magnetism and Superconductivity with Spin-Polarized Current in Iron-Based Superconductor

arXiv

引用

arXiv 2017年

作者： Choi, Seokhwan Choi, Hyoung Joon Ok, Jong Mok Lee, Yeonghoon Jang, Won-Jun Lee, Alex Taekyung Kuk, Young Lee, SungBin Heinrich, Andreas J. Cheong, Sang-Wook Bang, Yunkyu Johnston, Steven Kim, Jun Sung Lee, Jhinhwan Department of Physics Korea Advanced Institute of Science and Technology Daejeon34141 Korea Republic of Department of Physics Center for Computational Studies of Advanced Electronic Material Properties Yonsei University Seoul03722 Department of Physics Pohang University of Science and Technology Pohang37673 Korea Republic of Center for Artificial Low Dimensional Electronic Systems Institute for Basic Science Pohang37673 Daejeon34051 Department of Applied Physics and Applied Mathematics Columbia University New York10027 United States Department of Physics and Astronomy Seoul National University Seoul151-747 Korea Republic of Seoul03760 Korea Republic of Physics Department Ewha Womans University Seoul03760 Rutgers Center for Emergent Materials Department of Physics and Astronomy Rutgers University PiscatawayNJ08854 United States Department of Physics Chonnam National University Kwangju500-757 Korea Republic of Department of Physics and Astronomy University of Tennessee KnoxvilleTN37996-1200 United States Seoul03760 Korea Republic of Department of Physics Ewha Womans University Seoul03760 Korea Republic of

来源：评论

学校读者我要写书评

暂无评论

Features of the structural safety analysis (strain-stress state, dynamics, strength and stability) of stadiums for the 2018 FIFA World Cup in Russia

引用

IOP Conference Series: Materials Science and Engineering 2018年第1期456卷

作者： A I Nagibovich A M Belostosky D S Dmitriev A S Pavlov A A Aul K I Ostrovsky Y N Dyadchenco S V Scherbina Research & Development Centre StaDyO office 810 18 3ya Ulitsa Yamskogo Polya Moscow 125040 Russia Department of Building Constructions and Computational Mechanics Perm National Research Polytechnic University 29 Komsomolsky prospekt Perm 614990 Russia Department of Structures Buildings and Facilities Russian University of Transport» (RUT – MIIT) 9b9 Obrazcova Street Noscow 127994 Russia Tomsk State University of Architecture and Building 2 Solyanaya sq. Tomsk 634003 Russia Department of Architecture and Civil Engineering Peoples' Friendship University of Russia 6 Miklukho-Maklaya str. Moscow 117198 Russia Department of Applied Mathematics National Research Moscow State University of Civil Engineering 26 Yaroslavskoe Shosse Moscow 129337 Russia

The article presents special features of numerical simulation and main results of structural safety analysis of the three-dimensional long-span systems 'ground base - reinforced concrete foundation structures and stands - metal structures of the coating and facades' of football stadiums for the 2018 World Cup in Russia with basic and special combinations of loads and key procedures of scientific support during examination. A brief description is given of the component mode synthesis as applied to the calculation of structures of this type

关键词：

来源：评论

学校读者我要写书评

暂无评论

Inverse design of disordered stealthy hyperuniform spin chains

引用

Physical Review B 2016年第6期93卷 064201-064201页

作者： Eli Chertkov Robert A. DiStasio, Jr. Ge Zhang Roberto Car Salvatore Torquato Department of Physics Princeton University Princeton New Jersey 08544 USA Department of Chemistry Princeton University Princeton New Jersey 08544 USA Department of Chemistry and Chemical Biology Cornell University Ithaca New York 14853 USA Princeton Institute for the Science and Technology of Materials Princeton University Princeton New Jersey 08544 USA Program in Applied and Computational Mathematics Princeton University Princeton New Jersey 08544 USA

Positioned between crystalline solids and liquids, disordered many-particle systems which are stealthy and hyperuniform represent new states of matter that are endowed with novel physical and thermodynamic properties. Such stealthy and hyperuniform states are unique in that they are transparent to radiation for a range of wave numbers around the origin. In this work, we employ recently developed inverse statistical-mechanical methods, which seek to obtain the optimal set of interactions that will spontaneously produce a targeted structure or configuration as a unique ground state, to investigate the spin-spin interaction potentials required to stabilize disordered stealthy hyperuniform one-dimensional (1D) Ising-type spin chains. By performing an exhaustive search over the spin configurations that can be enumerated on periodic 1D integer lattices containing N=2,3,...,36 sites, we were able to identify and structurally characterize all stealthy hyperuniform spin chains in this range of system sizes. Within this pool of stealthy hyperuniform spin configurations, we then utilized such inverse optimization techniques to demonstrate that stealthy hyperuniform spin chains can be realized as either unique or degenerate disordered ground states of radial long-ranged (relative to the spin-chain length) spin-spin interactions. Such exotic ground states appear to be distinctly different from spin glasses in both their inherent structural properties and the nature of the spin-spin interactions required to stabilize them. As such, the implications and significance of the existence of these disordered stealthy hyperuniform ground-state spin systems warrants further study, including whether their bulk physical properties and excited states, like their many-particle system counterparts, are singularly remarkable, and can be experimentally realized.

关键词： Optimization problems Ising model Spin chains

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：