We provide an analytic derivation of the bifurcation conditions for localized bulging in inflated hyperelastic tube arbitrary wall thickness and axisymmetric necking a sheet under equibiaxial stretching. It has previously been shown numerically that condition former problem is equivalent to vanishing Jacobian determinant internal pressure P resultant axial force N, with each them viewed as func...

In this study, a fiber chain was developed to replace steel using high-modulus polyethylene DM20. The pick count, wrapping and inner length were selected as the main design variables of analyzed increase breaking strength. Orthogonal array experiments conducted, results with respect analysis revealed that count had meaningful effects at significance levels within 5%. effect smaller larger longe...

Abstract We prove that the generator of $$L^2$$ L 2 implementation a KMS-symmetric quantum Markov semigroup can be expressed as square derivation with values in Hilbert bimodule, extending earlier results by Cipriani and Sauvageot for tracially symmetric semigroups seco...

There are several kinds of hyperrings, for example, Krasnerhyperrings, multiplicative hyperring, general hyperrings and$H_v$-rings. In a multiplicative hyperring, the multiplication isa hyperoperation, while the addition is a binary operation. In this paper, the notion of derivation on multiplicative hyperrings is introduced and some related properties are investigated. {bf Keywords:} multiplic...

Let m ≥ 0, n ≥ 0 be fixed integers with m + n 6= 0 and let R be a ring. It is our aim in this paper to investigate additive mapping T : R → R satisfying the relation (m + n)T (x2) = mT (x)x + nxT (x) for all x ∈ R. This research is a continuation of our earlier work ([11]). Throughout, R will represent an associative ring with center Z(R). Given an integer n ≥ 2, a ring R is said to be n−torsio...

In this paper identities related to derivations on semiprime rings and standard operator algebras are investigated. We prove the following result which generalizes a classical result of Chernoff. Let X be a real or complex Banach space, let L(X) be the algebra of all bounded linear operators of X into itself and let A(X) ⊆ L(X) be a standard operator algebra. Suppose there exists a linear mappi...

As a new type of pipe, bimetallic composite pipe is widely used in various industries the chemical industry, because its internal and external tubes use different metals, so it can cope with variety working conditions. At present, application field mostly inner strong outer weak this has not been studied accordingly. In paper, theory expansion derived, complete set methods related parameter cal...

The guaranteed-performance consensus tracking (GPCT) for non-linear multi-agent systems (MASs) with switching communication topologies is presented. Different from the existing work, range of one-sided Lipschitz MASs wider than ones, and upper bound performance given while achieving tracking. First, a control protocol proposed, where regulation involved. Then, by linear matrix inequality (LMI),...

In this paper we defined the concept of module amenability of Banach algebras and module connes amenability of module dual Banach algebras.Also we assert the concept of module Arens regularity that is different with [1] and investigate the relation between module amenability of Banach algebras and connes module amenability of module second dual Banach algebras.In the following we studythe...