Results 11 to 20 of about 6,618,541 (298)

Calculation of a lower bound ratchet limit part 2 : Application to a pipe intersection and dissimilar material join [PDF]

open access: yes, 2013
In an accompanying paper in this issue a lower bound method based on Melan's theorem was derived and implemented into the Linear Matching Method ratchet analysis procedure.
Tipping, David   +2 more
core   +4 more sources

Calculation of a lower bound ratchet limit part 1 – Theory, numerical implementation and verification [PDF]

open access: yes, 2013
It is important to be able to calculate the ratchet limit of a component when performing integrity assessments of plant components. This paper details the addition of a lower bound ratchet limit calculation to the Linear Matching Method. The extension of
Tipping, David   +2 more
core   +4 more sources

A direct method for the evaluation of lower and upper bound ratchet limits [PDF]

open access: yes, 2011
The calculation of the ratchet limit is often vital for the assessment of the design and integrity of components which are subject to cyclic loading. This work describes the addition of a lower bound calculation to the existing Linear Matching Method ...
Ure, James Michael   +5 more
core   +3 more sources

A fully implicit, lower bound, multi-axial solution strategy for direct ratchet boundary evaluation : implementation and comparison [PDF]

open access: yes, 2014
Ensuring sufficient safety against ratcheting is a fundamental requirement in pressure vessel design. However, determining the ratchet boundary using a full elastic plastic finite element analysis can be problematic and a number of direct methods have ...
Jappy, Alan   +2 more
core   +4 more sources

A Lower Bound for the Rational LS-category of a Coformal Elliptic Space [PDF]

open access: yes, 2008
We give a lower bound for the rational LS-category of certain spaces, including the coformal elliptic ones, in terms of the dimension of its total rational cohomology.
Yamaguchi, Toshihiro
core   +1 more source

Lower Bounds and Upper Bounds for MaxSAT [PDF]

open access: yes, 2012
This paper presents several ways to compute lower and upperbounds for MaxSAT based on calling a complete SAT solver. Preliminary results indicate that (i) the bounds are of high quality, (ii) the bounds can boost the search of MaxSAT solvers on some benchmarks, and (iii) the upper bounds computed by a Stochastic Local Search procedure (SLS) can be ...
Federico Heras   +2 more
openaire   +2 more sources

A Lower Bound for the LS Category of a Formal Elliptic Space [PDF]

open access: yes, 2005
We give a lower bound for the LS category of a formal elliptic space in terms of its rational cohomology.
Kotani, Yasusuke, Yamaguchi, Toshihiro
core   +1 more source

Damage Index-Based Lower Bound Structural Design

open access: yesFrontiers in Built Environment, 2018
The scope of the work is to detect the most appropriate damage index, able to provide a reliable description of the structural damage level. This damage index is used to formulate a performance-based design framework to be used as a design tool for ...
Chara Ch. Mitropoulou   +3 more
doaj   +1 more source

Lower bound of four-dimensional Hausdorff matrices

open access: yesJournal of Inequalities and Applications, 2019
Let H=(hnmjk) $\mathsf{H}=(h_{nmjk})$ be a non-negative four-dimensional matrix. Denote by Lp(H) $L_{p}(\mathsf{H})$ the supremum of those ℓ satisfying the following inequality: (∑n=0∞∑m=0∞(∑j=0∞∑k=0∞hnmjkxj,k)p)1/p≥ℓ(∑j=0∞∑k=0∞xj,kp)1/p, $$ { \Biggl ...
Gholamreza Talebi
doaj   +1 more source

Bounds on Performance for Recovery of Corrupted Labels in Supervised Learning: A Finite Query-Testing Approach

open access: yesMathematics, 2023
Label corruption leads to a significant challenge in supervised learning, particularly in deep neural networks. This paper considers recovering a small corrupted subset of data samples which are typically caused by non-expert sources, such as automatic ...
Jin-Taek Seong
doaj   +1 more source

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