scholarly journals Electrical conductance of two-dimensional composites with embedded rodlike fillers: An analytical consideration and comparison of two computational approaches

2019 ◽  
Vol 125 (13) ◽  
pp. 134902 ◽  
Author(s):  
Yuri Yu. Tarasevich ◽  
Irina V. Vodolazskaya ◽  
Andrei V. Eserkepov ◽  
Renat K. Akhunzhanov
Keyword(s):  
Electrical Conductance ◽  
Two Dimensional ◽  
Computational Approaches ◽  
Analytical Consideration

Anumerical algorithm for the solution of two-dimensional rough contact problems

2005 ◽  
Vol 40 (5) ◽  
pp. 463-476 ◽  
Author(s):  
M Ciavarella ◽  
G Demelio ◽  
C Murolo
Keyword(s):  
Electrical Conductance ◽  
Contact Problems ◽  
Two Dimensions ◽  
Winkler Foundation ◽  
Discrete Problem ◽  
Two Dimensional ◽  
Compliance Matrix ◽  
Linear Layer ◽  
Non Linear ◽  
Foundation Model

In this paper, a numerical algorithm is developed to solve the elastic contact problem accurately for two-dimensional rough surfaces. A first version of the method gives a full numerical solution for the discrete problem with all the details of the profile included, and the second version simulates approximately the roughness on a smaller scale with the presence of a non-linear elastic layer (as in the classical Winkler foundation model). In the literature, usually the solution of line contact is given by assuming displacements relative to a datum point, to overcome the difficulty that in two dimensions the displacements are undefined to an arbitrary constant. In the present work, the compliance matrix of the elastic half-plane is calculated starting from a self-equilibrated load distribution with periodic boundary conditions. Some examples are shown to validate the methods. Finally, the method is applied to discuss previous results by the present authors on rough contact problems defined by Weierstrass series profiles, and a discussion follows. In particular, it is found that the Winkler non-linear layer model is surprisingly useful for evaluating the electrical conductance, since (at least in the limited case of two superposed sinusoids) it does not require the wavelength and amplitude of the microscopic component of roughness to be much smaller than the macroscopic component. Some aspects of the mutual role of various components of roughness in the compliance and conductance are elucidated by means of example cases.

scholarly journals Computational Psychiatry Research Map (CPSYMAP): a New Database for Visualizing Research Papers

2020 ◽  
Author(s):  
Ayaka Kato ◽  
Yoshihiko Kunisato ◽  
Kentaro Katahira ◽  
Tsukasa Okimura ◽  
Yuichi Yamashita
Keyword(s):  
Machine Learning ◽  
Computational Neuroscience ◽  
Scientific Evidence ◽  
High Dimensional ◽  
Two Dimensional ◽  
Research Papers ◽  
Treatment Protocols ◽  
Computational Approaches ◽  
Computational Psychiatry ◽  
Multidisciplinary Nature

AbstractThe field of computational psychiatry is growing in prominence along with the recent advances in computational neuroscience, machine learning, and the cumulative scientific evidence of psychiatric disorders. Computational approaches provide an understanding of disorders using psychological and neuroscience terms and help to determine treatment protocols based on high-dimensional data. However, the multidisciplinary nature of this field seems to limit the development of computational psychiatry studies. Computational psychiatry combines knowledge from neuroscience, psychiatry, and computation; thus, there is an emerging need for a platform to integrate and coordinate these perspectives. In this study, we developed a new database for visualizing research papers as a two-dimensional “map” called the Computational Psychiatry Research Map (CPSYMAP). This map shows the distribution of papers along neuroscientific, psychiatric, and computational dimensions to enable anyone to find niche research and deepen their understanding of the field.

Silicene Nanoribbons and Nanopores for Nanoelectronic Devices and Applications

2017 ◽  
pp. 39-69
Author(s):  
Hatef Sadeghi ◽  
Sara Sangtarash
Keyword(s):  
Power Generation ◽  
Electrical Properties ◽  
Thermoelectric Power ◽  
Carrier Concentration ◽  
Field Effect ◽  
Electrical Conductance ◽  
Analytical Models ◽  
Two Dimensional ◽  
Silicene Nanoribbons ◽  
Effect Transistor

Given the compatibility of silicene with existing semiconductor techniques, and a need for new materials to continue Moore's low, it is natural to ask if this material can form a platform as field effect transistor. Here we provide analytical models to study the electrical properties of two dimensional silicene such as electrical conductance, carrier concentration, mobility and magneto-conductance. Furthermore, we show that silicene nanoribbons and nanopores can be used as a discriminating sensor for DNA sequencing and for efficient thermoelectric power generation.

Modulated two-dimensional patterns in reaction–diffusion systems

1999 ◽  
Vol 10 (2) ◽  
pp. 157-184 ◽  
Author(s):  
R. KUSKE ◽  
P. MILEWSKI
Keyword(s):  
Reaction Diffusion ◽  
Hexagonal Structure ◽  
Two Dimensional ◽  
Computational Approaches ◽  
Modulation Equations ◽  
Reaction Diffusion Systems ◽  
Diffusion Systems ◽  
New Phenomena ◽  
Rayleigh Benard Convection ◽  
Rayleigh Benard

New modulation equations for hexagonal patterns in reaction–diffusion systems are derived for parameter régimes corresponding to the onset of patterns. These systems include additional nonlinearities which are not present in Rayleigh–Bénard convection or Swift–Hohenberg type models. The dynamics of hexagonal and roll patterns are studied using a combination of analytical and computational approaches which exploit the hexagonal structure of the modulation equations. The investigation demonstrates instabilities and new phenomena not found in other systems, and is applied to patterns of flame fronts in a certain model of burner stabilized flames.

Analysis of a smart clutch with cooling flow using two-dimensional bingham plastic analysis and computational fluid dynamics

2005 ◽  
Vol 219 (8) ◽  
pp. 639-652 ◽  
Author(s):  
D J Ellam ◽  
R J Atkin ◽  
W A Bullough
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Electrical Conductance ◽  
Constitutive Models ◽  
Unsteady Motion ◽  
Two Dimensional ◽  
Bingham Plastic ◽  
Cooling Flow ◽  
Rate Effects ◽  
Fluid Properties

Two-dimensional (orthogonal) steady isothermal flows of a Bingham plastic between two plates, one moving and the other stationary, are discussed. This is done principally to examine and quantify the concept of cooling a smart clutch by throughflow. The fluid is modelled conventionally as an ideal Bingham plastic to verify the subsequent use of a computational fluid dynamics (CFD) package for similar flows in more complex situations but with a futuristic view to including heat transfer, electrical conductance, thermal and shear rate effects on fluid properties, and unsteady motion. The CFD (Fluent) package incorporates a user-defined subroutine facility which allows non-Newtonian constitutive models to be incorporated. Both radial and concentric geometries are considered. The two approaches (conventional analysis and CFD) are seen to complement one another.

scholarly journals Recent Progress, Challenges, and Prospects in Two-Dimensional Photo-Catalyst Materials and Environmental Remediation

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Karim Khan ◽  
Ayesha Khan Tareen ◽  
Muhammad Aslam ◽  
Rizwan Ur Rehman Sagar ◽  
Bin Zhang ◽  
...  
Keyword(s):  
Environmental Remediation ◽  
Active Sites ◽  
Electrical Conductance ◽  
Basic Mechanism ◽  
Structure Design ◽  
Two Dimensional ◽  
Significant Information ◽  
Research Attention ◽  
Hetero Structure ◽  
Photo Catalyst

AbstractThe successful photo-catalyst library gives significant information on feature that affects photo-catalytic performance and proposes new materials. Competency is considerably significant to form multi-functional photo-catalysts with flexible characteristics. Since recently, two-dimensional materials (2DMs) gained much attention from researchers, due to their unique thickness-dependent uses, mainly for photo-catalytic, outstanding chemical and physical properties. Photo-catalytic water splitting and hydrogen (H2) evolution by plentiful compounds as electron (e−) donors is estimated to participate in constructing clean method for solar H2-formation. Heterogeneous photo-catalysis received much research attention caused by their applications to tackle numerous energy and environmental issues. This broad review explains progress regarding 2DMs, significance in structure, and catalytic results. We will discuss in detail current progresses of approaches for adjusting 2DMs-based photo-catalysts to assess their photo-activity including doping, hetero-structure scheme, and functional formation assembly. Suggested plans, e.g., doping and sensitization of semiconducting 2DMs, increasing electrical conductance, improving catalytic active sites, strengthening interface coupling in semiconductors (SCs) 2DMs, forming nano-structures, building multi-junction nano-composites, increasing photo-stability of SCs, and using combined results of adapted approaches, are summed up. Hence, to further improve 2DMs photo-catalyst properties, hetero-structure design-based 2DMs’ photo-catalyst basic mechanism is also reviewed.

Design and characterization of novel polymorphs of single-layered tin-sulfide for direction-dependent thermoelectric applications using first-principles approaches

2019 ◽  
Vol 21 (8) ◽  
pp. 4624-4632 ◽  
Author(s):  
Bakhtiar Ul Haq ◽  
S. AlFaify ◽  
A. Laref
Keyword(s):  
First Principles ◽  
2D Materials ◽  
Cutting Edge ◽  
Tin Sulfide ◽  
Two Dimensional ◽  
Computational Approaches

Advanced computational approaches have made the design and characterization of novel two-dimensional (2D) materials possible for applications in cutting-edge technologies.

Structures and optoelectronic properties of two-dimensional MC6 (M = Ti and Hf) predicted by computational approaches

2020 ◽  
Vol 25 ◽  
pp. 101606
Author(s):  
Yi-min Ding ◽  
Huilong Dong ◽  
Hongxia Zhong ◽  
Juan Xie ◽  
Nopporn Rujisamphan ◽  
...  
Keyword(s):  
Optoelectronic Properties ◽  
Two Dimensional ◽  
Computational Approaches

Two-dimensional Ca4N2 as a one-dimensional electride [Ca4N2]2+·2e− with ultrahigh conductance

Nanoscale ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 5578-5586 ◽  
Author(s):  
Xiaofeng Liu ◽  
Zijing Ding ◽  
Jie Liu ◽  
Wei Hu ◽  
Jinlong Yang
Keyword(s):  
Electrical Conductance ◽  
Two Dimensional ◽  
One Dimensional

Two dimensional Ca4N2 can serve as a one-dimensional electride [Ca4N2]2+·2e− with anionic electrons confined in the surface channels and possess high electrical conductance.

scholarly journals Computational Psychiatry Research Map (CPSYMAP): A New Database for Visualizing Research Papers

2020 ◽  
Vol 11 ◽  
Author(s):  
Ayaka Kato ◽  
Yoshihiko Kunisato ◽  
Kentaro Katahira ◽  
Tsukasa Okimura ◽  
Yuichi Yamashita
Keyword(s):  
Machine Learning ◽  
Psychiatric Disorders ◽  
Computational Neuroscience ◽  
High Dimensional ◽  
Two Dimensional ◽  
Clinical Practices ◽  
Research Papers ◽  
Computational Approaches ◽  
Computational Psychiatry ◽  
Multidisciplinary Nature

The field of computational psychiatry is growing in prominence along with recent advances in computational neuroscience, machine learning, and the cumulative scientific understanding of psychiatric disorders. Computational approaches based on cutting-edge technologies and high-dimensional data are expected to provide an understanding of psychiatric disorders with integrating the notions of psychology and neuroscience, and to contribute to clinical practices. However, the multidisciplinary nature of this field seems to limit the development of computational psychiatry studies. Computational psychiatry combines knowledge from neuroscience, psychiatry, and computation; thus, there is an emerging need for a platform to integrate and coordinate these perspectives. In this study, we developed a new database for visualizing research papers as a two-dimensional “map” called the Computational Psychiatry Research Map (CPSYMAP). This map shows the distribution of papers along neuroscientific, psychiatric, and computational dimensions to enable anyone to find niche research and deepen their understanding ofthe field.

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