Results 31 to 40 of about 13,054,728 (351)

A Green's function for diffraction by a rational wedge [PDF]

, 1989
In this paper we derive an expression for the point source Green's function for the reduced wave equation, valid in an angular sector whose angle is equal to a rational multiple of 77.
Rawlins, AD
core   +1 more source

The generalized exponential rational function method for Radhakrishnan-Kundu-Lakshmanan equation with β-conformable time derivative

Revista mexicana de física, 2019
In this paper, the generalized exponential rational function method (GERFM) and the extended sinh-Gordon equation expansion method (ShGEEM) are used to construct exact solutions of the perturbed β-conformable-time Radhakrishnan-Kundu-Lakshmanan (RKL ...
Behzad Ghanbari, J. F. Gómez‐Aguilar
semanticscholar   +1 more source

Parameter identification method of time-domain stable discrete rational approximation for frequency response of foundations

Yantu gongcheng xuebao, 2021
The discrete-time rational approximation function is one of the important methods for establishing dynamic analysis model for foundations. The stability and accuracy of the rational function determine those of dynamic time history analysis.
WANG Zhi-yu 1, TANG Zhen-yun 1, 2, DU Xiu-li 1
doaj   +1 more source

Rational design of enzyme activity and enantioselectivity

Frontiers in Bioengineering and Biotechnology, 2023
The strategy of rational design to engineer enzymes is to predict the potential mutants based on the understanding of the relationships between protein structure and function, and subsequently introduce the mutations using the site-directed mutagenesis ...
Zhongdi Song, Qunfeng Zhang, Wenhui Wu, Zhongji Pu, Haoran Yu   +4 more
semanticscholar   +1 more source

Colloidal Indium-Doped Zinc Oxide Nanocrystals with Tunable Work Function: Rational Synthesis and Optoelectronic Applications [PDF]

, 2014
Transition metal oxides are widely used in solution-processed optoelectronic devices as charge-transporting interlayers to improve contact properties and device performances. Here we show that the work function of oxide nanocrystal thin films, one of the
Wang, X, Xingliang Dai, Liwei Chen, Ye, ZZ, Jianpu Wang, Sai Bai, Na Zhang, Chen, Q (陈沁), Haiping He, Liang XY, Xin Wang, Yizheng Jin, Bai, S, Jin, CH, Zhizhen Ye, Yuping Ren, He, HP, Chuanhong Jin, Zhang, N, Ren, YP, Dai, XL, Xiaoyong Liang, Qi Chen   +22 more
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Innovative Methods of Constructing Strict and Strong Fuzzy Negations, Fuzzy Implications and New Classes of Copulas

Mathematics
This paper presents new classes of strong fuzzy negations, fuzzy implications and Copulas. It begins by presenting two theorems with function classes involving the construction of strong fuzzy negations.
Panagiotis Georgiou Mangenakis, Basil Papadopoulos   +1 more
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On the decomposition of rational functions

Journal of Symbolic Computation, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mohamed Ayad, Peter Fleischmann
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SOME REFINEMENTS OF BERNSTEIN TYPE INEQUALITIES FOR RATIONAL FUNCTIONS WITH ZEROS IN A HALF PLANE

Проблемы анализа
Sofi and Shah proved some Bernstein-type inequalities for the class of rational functions r(z) with all poles in a half-plane. In this paper, we consider all zeros of r(z) to lie in the right half plane and prove several refinements of these results ...
M. Y. Mir, G. M. Sof, S. L. Wali, W. M. Shah   +3 more
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Galois groups over rational function fields over skew fields

Comptes Rendus. Mathématique, 2020
Let $H$ be a skew field of finite dimension over its center $k$. We solve the Inverse Galois Problem over the field of fractions $H(X)$ of the ring of polynomial functions over $H$ in the variable $X$, if $k$ contains an ample field.
Alon, Gil, Legrand, François, Paran, Elad   +2 more
doaj   +1 more source

Inverses of Rational Functions

Acta Cybernetica, 2022
We consider the numerical construction of inverses for a class of rational functions. We propose two inverse algorithms, which can be used to simultaneously identify every zero of a rational function or polynomial. In the first case, we propose a generalization of an inverse algorithm based on our previous work and specify a class of rational functions,
openaire   +2 more sources