Results 51 to 60 of about 23,805,970 (249)

Hardening effects on formability limit prediction based on gurson-type damage models and bifurcation analysis [PDF]

open access: yes, 2017
In this work, ductility limits of metallic materials, associated with the occurrence of strain localization, are predicted using the GTN damage model coupled with bifurcation theory.
Abed-Meraim, F., Chalal, H.
core   +2 more sources

Functional central limit theorems for vicious walkers

open access: yes, 2003
We consider the diffusion scaling limit of the vicious walker model that is a system of nonintersecting random walks. We prove a functional central limit theorem for the model and derive two types of nonintersecting Brownian motions, in which the ...
Belkin B   +29 more
core   +2 more sources

Levenberg-Marquardt vs Powell's dogleg method for Gurson-Tvergaard-Needleman plasticity model [PDF]

open access: yes, 2012
The GTN continuous damage model is very popular in academia and industry for structural integrity assessment and ductile fracture simulation. Following Aravas' influential 1987 paper, Newton's method has been used widely to solve the GTN equations ...
Alexander, N. A., Shterenlikht, A.
core   +2 more sources

Impact of Heated Versus Unheated Cooking Oil on Postprandial Vascular Function and Metabolism

open access: yesLipids, EarlyView.
ABSTRACT The impact of repeated heating of seed‐based culinary oils on cardiometabolic health has not been well established. Heating oils to high temperatures (> 150°C) causes lipid peroxidation, thus generating potentially harmful compounds that may impair vascular function. This randomized, single‐blind, crossover study investigated the acute effects
Rosiered Brownson‐Smith   +5 more
wiley   +1 more source

School achievement in the Brazilian rural Amazon: An analysis of the interaction among motor, cognitive and environmental factors

open access: yesBritish Journal of Developmental Psychology, EarlyView.
Abstract A cross‐sectional study of 106 students (7–12 years) from a rural school in the Brazilian Amazon investigated the interaction among motor, cognitive and environmental factors on school achievement using network analysis. Students with good school performance were significantly older and showed superior global physical fitness, motor ...
Douglas Vieira   +3 more
wiley   +1 more source

Triptans and CGRP blockade - impact on the cranial vasculature [PDF]

open access: yes, 2017
The trigeminovascular system plays a key role in the pathophysiology of migraine. The activation of the trigeminovascular system causes release of various neurotransmitters and neuropeptides, including serotonin and calcitonin gene-related peptide ...
Alejandro Labastida-Ramírez   +9 more
core   +3 more sources

Activation of peripheral NOP receptors reduces periorbital mechanical allodynia evoked by CGRP in mice

open access: yesBritish Journal of Pharmacology, EarlyView.
Background and Purpose Migraine is a neurovascular disorder largely mediated by calcitonin gene‐related peptide (CGRP). This study explores the role of the nociceptin/orphanin FQ (N/OFQ)–N/OFQ receptor (NOP) system in CGRP‐induced periorbital mechanical allodynia (PMA) in mice.
Chiara Sturaro   +14 more
wiley   +1 more source

Study of the slant fracture in solid and hollow cylinders: Experimental analysis and numerical prediction

open access: yesFracture and Structural Integrity, 2023
This paper is devoted to the numerical and experimental study of ductile fracture in bulk metal forming of the 2017A-T4 aluminum alloy. From an experimental standpoint, the ductile fracture of the2017A-T4aluminum alloy is investigated under compressive ...
N. Ben Chabane   +2 more
doaj   +1 more source

Genetic Determinants of Peanut‐Specific IgG4 Levels in the Context of Sustained Oral Peanut Exposure in the LEAP Study

open access: yesImmunology, EarlyView.
A cumulative genetic score based on IgG4‐associated variants explains a substantial proportion of variance in psIgG4 levels during sustained peanut consumption, highlighting strong gene‐by‐environment interactions. Our findings suggest that early, sustained peanut consumption, in combination with genetic factors, promotes a protective immune response ...
Kanika Kanchan   +14 more
wiley   +1 more source

Cohesive GTN model for ductile fracture simulation

open access: yesEngineering Fracture Mechanics, 2021
The present work addresses the micromechanical modeling and the simulation of crack initiation and propagation in ductile materials failing by void nucleation, growth and coalescence.
Noé Brice Nkoumbou Kaptchouang   +3 more
semanticscholar   +1 more source

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