Results 21 to 30 of about 6,476,644 (264)

A Study on a New Method for Flexoelectric Coefficient Estimation of the Flexoelectric Unimorph Sensing Element

open access: yesApplied Mechanics, 2021
In a flexoelectric sensing element using bending mode, estimation of the flexoelectric coefficient was investigated using 3-D stress/strain analysis and experiments.
Seol Ryung Kwon, Yongrae Roh
doaj   +1 more source

Electronic stress tensor analysis of hydrogenated palladium clusters [PDF]

open access: yes, 2011
We study the chemical bonds of small palladium clusters Pd_n (n=2-9) saturated by hydrogen atoms using electronic stress tensor. Our calculation includes bond orders which are recently proposed based on the stress tensor. It is shown that our bond orders
A Filippetti   +44 more
core   +2 more sources

The effect of heart rate variability biofeedback training on stress and anxiety: a meta-analysis [PDF]

open access: yes, 2017
BACKGROUND: Some evidence suggests that heart rate variability (HRV) biofeedback might be an effective way to treat anxiety and stress symptoms. To examine the effect of HRV biofeedback on symptoms of anxiety and stress, we conducted a meta-analysis of ...
Curtiss, Joshua E.   +2 more
core   +1 more source

Analysing the Generative Design of Payload Part for the 3D Metal Printing

open access: yesCommunications, 2023
Additive manufacturing provides the possibility to print complex generative designed bodies. The research deals with redesigning a payload part of a camera holder using generative design for selective laser melting.
Tamás Markovits   +2 more
doaj   +1 more source

Experimental investigation of the effect of test speed on rupture performance of synthetic yarns

open access: yesActa Polytechnica
This study experimentally investigated the effect of testing speed on the mechanical behaviour of five types of synthetic fibres – aramid, high-modulus polyethylene (HMPE), liquid crystal polymer (LCP), polyamide, and polyester – through yarn break load
Daniel Magalhães da Cruz   +5 more
doaj   +1 more source

Powder Manufacturing-Driven Variations in Flowability and Deformation Behavior of Pure Copper Powders for Cold Spray Additive Manufacturing

open access: yesMetals
The quality of the feedstock powder plays a key role in determining the properties of coatings produced by cold spray (CS). However, most commercially available powders are not specifically designed for CS, which makes it difficult to tailor powder ...
Niloofar Eftekhari, Hamid Jahed
doaj   +1 more source

Stress analysis in solid-liquid parts of solidifying castings

open access: yesMATEC Web of Conferences, 2019
In the paper, we present results of stress analysis in domains which are a mixture of solid and liquid phases. Such mixtures occur in solidifying castings and are a result of forming a structure with solid skeleton and filling of a liquid phase.
Gawrońska Elżbieta   +2 more
doaj   +1 more source

Characterization Of Thermal Stresses And Plasticity In Through-Silicon Via Structures For Three-Dimensional Integration [PDF]

open access: yes, 2014
Through-silicon via (TSV) is a critical element connecting stacked dies in three-dimensional (3D) integration. The mismatch of thermal expansion coefficients between the Cu via and Si can generate significant stresses in the TSV structure to cause ...
Ho, P. S.   +4 more
core   +1 more source

Predicting fatigue crack growth rate in a welded butt joint: The role of effective R ratio in accounting for residual stress effect [PDF]

open access: yes, 2009
A simple and efficient method is presented in this paper for predicting fatigue crack growth rate in welded butt joints. Three well-known empirical crack growth laws are employed using the material constants that were obtained from the base material ...
Servetti, Guido, Zhang, X.
core   +1 more source

Treatment Decision‐Making Roles and Preferences Among Adolescents and Young Adults With Cancer

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Decision‐making (DM) dynamics between adolescents and young adults (AYAs) with cancer, parents, and oncologists remain underexplored in diverse populations. We examined cancer treatment DM preferences among an ethnically and socioeconomically diverse group of AYAs and their parents.
Amanda M. Gutierrez   +14 more
wiley   +1 more source

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