Results 21 to 30 of about 230,180 (265)

The Strength of the SCT Criterion

open access: yes, 2017
We undertake the study of size-change analysis in the context of Reverse Mathematics. In particular, we prove that the SCT criterion is equivalent to $ ^0_2$-induction over RCA$_0$.
Frittaion, Emanuele   +2 more
openaire   +2 more sources

Strength-based criterion shifts in recognition memory [PDF]

open access: yesMemory & Cognition, 2009
In manipulations of stimulus strength between lists, a more lenient signal detection criterion is more frequently applied to a weak than to a strong stimulus class. However, with randomly intermixed weak and strong test probes, such a criterion shift often does not result.
openaire   +2 more sources

Off-Axial Tensile Test and Analysis for Stratospheric Airship Envelope Material

open access: yesAerospace
The mechanical properties of envelope materials play a critical role in determining the service life of stratospheric airships. This paper investigates the failure analysis and strength criteria of a plain-woven stratospheric envelope material.
Zhanbo Li   +3 more
doaj   +1 more source

Damage ratio strength criterion for cast iron

open access: yesJournal of Materials Research and Technology, 2022
According to the assumption of small strains and total strain decomposition of cast iron, the expressions of the inelastic principal strain rate and relative energy dissipation rate of cast iron are derived, and the parameters of the tensile and ...
Faxing Ding   +4 more
doaj   +1 more source

Evaluation of strength of spherical contact pairs of aviation structures

open access: yesAviation, 2010
The strength criterion is used to evaluate the spherical contact pairs of the aviation structures. The strength criterion helps evaluate triaxial tension in the contact pair. Calculations reveal the acceptability of the suggested criterion. Santrauka
Antanas Žiliukas, Bronius Merkys
doaj   +1 more source

An explicit formulation of the macroscopic strength criterion for porous media with pressure and Lode angle dependent matrix under axisymmetric loading

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2021
This paper aims to propose an explicit formulation of the macroscopic strength criterion for porous media with spherical voids. The matrix is assumed rigid and perfectly plastic with yield surface described by the three-parameter strength criterion ...
Jincheng Fan   +3 more
doaj   +1 more source

Study on strength criterion of gas hydrate-coal mixture based on Drucker - Prager criterion

open access: yesMeikuang Anquan, 2022
In order to obtain the applicability of the strength criterion of gas hydrate coal under high saturation, based on Drucker-Prager criterion and combined with the stress-strain curve of gas hydrate coal under conventional triaxial compression, the error ...
GAO Xia, MENG Wei, ZHANG Baoyong
doaj   +1 more source

Sickle Cell Disease Is an Inherent Risk for Asthma in a Sibling Comparison Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Sickle cell disease (SCD) and asthma share a complex relationship. Although estimates vary, asthma prevalence in children with SCD is believed to be comparable to or higher than the general population. Determining whether SCD confers an increased risk for asthma remains challenging due to overlapping symptoms and the ...
Suhei C. Zuleta De Bernardis   +9 more
wiley   +1 more source

A compressive strength criterion for anisotropic rock materials [PDF]

open access: yesCanadian Geotechnical Journal, 1988
This paper proposes a general compressive strength criterion for anisotropic rock materials under multiaxial states of stress. The proposed criterion is a generalization of the Von Mises' criterion for yielding of ductile metals, which has also been used previously as a strength criterion for brittle fracture in the spirit of both being limits of ...
openaire   +3 more sources

Multiaxial Strength Criterion Model of Concrete Based on Random Forest

open access: yesMathematics, 2023
The concrete strength criterion is the basis of strength analysis and evaluation under a complex stress state. In this paper, a large number of multiaxial strength tests were carried out, and many mathematical expressions of strength criteria were ...
Xingqiao Chen   +5 more
doaj   +1 more source

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