Results 21 to 30 of about 1,175,340 (231)

An Alternative Approach of Initial Stability Analysis of Kirchhoff Plates by the Boundary Element Method

open access: yesEngineering Transactions, 2014
An initial stability of Kirchhoff plates is analysed in the paper. Proposed approach avoids Kirchhoff forces at the plate corner and equivalent shear forces at a plate boundary. Two unknown variables are considered at the boundary element node.
Michał GUMINIAK
doaj   +1 more source

Numerical solution of the two-dimensional Helmholtz equation with variable coefficients by the radial integration boundary integral and integro-differential equation methods [PDF]

open access: yes, 2011
This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ 2012 Taylor & Francis.This paper presents new formulations of the boundary–domain integral equation (BDIE) and the boundary–domain integro-
M. A. AL-Jawary   +7 more
core   +2 more sources

Effects of Marangoni numbers on thermocapillary drop migration: constant for quasi-steady state? [PDF]

open access: yes, 2013
The overall {\it steady}-state energy balance with two phases in a flow domain requires that the change in energy of the domain is equal to the difference between the total energy entering the domain and that leaving the domain.
Crespo A.   +4 more
core   +1 more source

A new three-dimensional J-integral formulation for arbitrary load history and finite deformation

open access: yesNihon Kikai Gakkai ronbunshu, 2018
In this paper, a new formulation of three-dimensional J-integral for the evaluation of elastic-plastic fracture problem is presented. It is known that the J-integral represents the energy release rate per unit crack extension.
Koichiro ARAI   +2 more
doaj   +1 more source

Near integral domains II

open access: yesMonatshefte f�r Mathematik, 1975
A direct product decomposition is given for the multiplicative semigroup of a finite near integral domain in terms of the subsemigroup of left identities and a group of automorphisms on the additive group of the domain. Conditions are given which insure that every element will have a uniquen-th root. If there existsx≠0 such that (−x)y=−(xy), for eachy,
Heatherly, H., Olivier, Horace
openaire   +2 more sources

Factor Rings with Algebraic Identities via Generalized Derivations

open access: yesAxioms
The current article focuses on studying the behavior of a ring ℜ/Π when ℜ admits generalized derivations Ψ and Ω with associated derivations ϕ and δ, respectively. These derivations satisfy specific differential identities involving Π, where Π is a prime
Ali Yahya Hummdi   +2 more
doaj   +1 more source

SUBMAXIMAL INTEGRAL DOMAINS

open access: yesTaiwanese Journal of Mathematics, 2013
It is proved that if $D$ is a $UFD$ and $R$ is a $D$-algebra, such that $U(R)\cap D\neq U(D)$, then $R$ has a maximal subring. In particular, if $R$ is a ring which either contains a unit $x$ which is not algebraic over the prime subring of $R$, or $R$ has zero characteristic and there exists a natural number $n>1$ such that $\frac{1}{n}\in R$, then
openaire   +3 more sources

On Ideals and Behavior of Quotient Rings via Generalized (α,β)-Derivations

open access: yesMathematics
The purpose of this paper is to examine the behavior of a factor ring R/P with a partial range I of a ring R, where P is a prime ideal of R and I is a non-zero ideal of R such that P⊊I.
Nawaf L. Alsowait   +4 more
doaj   +1 more source

Universally catenarian integral domains

open access: yesAdvances in Mathematics, 1988
The authors study (not necessarily Noetherian) integral domains R that have the property that the polynomial ring \(R[X_ 1,...,X_ n]\) is catenarian for each positive \(integer n\). Such domains are said to be universally catenarian. It is proved that a domain R with this property is a stably strong S-domain in the sense of \textit{S.
BOUVIER A, DOBBS DE, FONTANA, Marco
openaire   +2 more sources

Nagata and Serre Conjecture Rings: A Unified Pullback Perspective

open access: yesMathematics
We study the strong S-property for Nagata and Serre conjecture rings through the framework of (T,M,D) construction rings, providing a unified approach that streamlines and extends previous results.
Noômen Jarboui, Bana Al Subaiei
doaj   +1 more source

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