Results 41 to 50 of about 1,724,768 (187)

Self-energy and lifetime of Shockley and image states on Cu(100) and Cu(111): Beyond the GW approximation of many-body theory

, 2007
We report many-body calculations of the self-energy and lifetime of Shockley and image states on the (100) and (111) surfaces of Cu that go beyond the $GW$ approximation of many-body theory.
A. Liebsch, G. D. Mahan, J. M. Pitarke, J. M. Pitarke, L. Hedin, M. G. Vergniory, P. M. Echenique, P. M. Echenique, Th. Fauster   +8 more
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On the Special Viviani’s Curve and Its Corresponding Smarandache Curves

Mathematics
In the present paper, the special Viviani’s curve is revisited in the context of Smarandache geometry. Accordingly, the paper first defines the special Smarandache curves of Viviani’s curve, including the Darboux vector.
Yangke Deng, Yanlin Li, Süleyman Şenyurt, Davut Canlı, İremnur Gürler   +4 more
doaj   +1 more source

Prediction of cancer using customised fuzzy rough machine learning approaches

Healthcare Technology Letters, 2018
This Letter proposes a customised approach for attribute selection applied to the fuzzy rough quick reduct algorithm. The unbalanced data is balanced using synthetic minority oversampling technique.
Chinnaswamy Arunkumar, Srinivasan Ramakrishnan, Srinivasan Ramakrishnan   +2 more
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Conducting Causal Analysis by Means of Approximating Probabilistic Truths

Entropy, 2022
The current paper develops a probabilistic theory of causation using measure-theoretical concepts and suggests practical routines for conducting causal inference. The theory is applicable to both linear and high-dimensional nonlinear models.
Bo Pieter Johannes Andrée
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Network equivalent by vector fitting-based rational approximation in wind power integrated power systems

The Journal of Engineering, 2019
Considering the electromagnetic transient (EMT) simulation for a large power system is complicated and impractical, a feasible solution is to model the area not of interest (external system) as a frequency-dependent network equivalent circuit by vector ...
Chenxuan Wang, Zhen Wang
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Resource optimised reconfigurable modular parallel pipelined stochastic approximation-based self-tuning regulator architecture with reduced latency

The Journal of Engineering, 2015
Present self-tuning regulator architectures based on recursive least-square estimation are computationally expensive and require large amount of resources and time in generating the first control signal due to computational bottlenecks imposed by the ...
Varghese Mathew Vaidyan, Ashok Shankar
doaj   +1 more source

Department of mathematical analysis and theory of functions celebrates 100 years!

Researches in Mathematics, 2020
In 2019 the Department of Mathematical Analysis and Theory of Functions celebrates its 100th anniversary. The history of its creation and development is given in the article in terms of the anniversary.
M.Ye. Tkachenko, M.B. Vakarchuk
doaj   +1 more source

Stein's method, Palm theory and Poisson process approximation

, 2004
The framework of Stein's method for Poisson process approximation is presented from the point of view of Palm theory, which is used to construct Stein identities and define local dependence.
Chen, Louis H. Y., Xia, Aihua
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Using the local density approximation and the LYP, BLYP, and B3LYP functionals within Reference--State One--Particle Density--Matrix Theory

, 2003
For closed-shell systems, the local density approximation (LDA) and the LYP, BLYP, and B3LYP functionals are shown to be compatible with reference-state one-particle density-matrix theory, where this recently introduced formalism is based on Brueckner ...
Blaizot J-P, Brueckner KA, Dreizler RM, Ellis DE, Gelfand IM, Gross EKU, Handy NC, Harris FE, Hirao K, James P. Finley, Kobe DH, Lindgren I, Lindgren I, Löwdin P-O, Löwdin P-O, Parr RG, Schaefer III HF, Seminario J, Shäfer L, Springborg M, Szabo A   +20 more
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Global theory of nonlinear systems-chaos, knots and stability [PDF]

Acta Montanistica Slovaca, 2003
In this paper we shall give a brief overview of nonlinear dynamical systems theory including the theory of chaos, knots, approximation theory and stability.
Banks Stephen P.
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