Results 31 to 40 of about 56,324,458 (301)

Research of effects of defects on stability failures of semi-monocoque stiffeners

open access: yesAviation, 2020
This article presents further results of the research of effects of model defects on the local buckling of compressed stiffeners in nonlinear finite element (FE) analyses.
Tomáš Katrňák   +2 more
doaj   +1 more source

Lifetime Estimation for IAR 99 HAWK [PDF]

open access: yesINCAS Bulletin, 2017
This article presents a selection of parameters recorded within the No. 719 IAR-99 HAWK flights and processed through the original software developed by the authors in Excel language. Flights were made at CCÎZ Craiova. The results processing leads to the
Dorin LOZICI-BRINZEI   +2 more
doaj   +1 more source

Topology optimization for two-dimensional structures using boundary cycles in homology theory

open access: yesMechanical Engineering Journal, 2022
Various prominent methods for structural topology optimization have been developed, especially since the late 1980s when the homogenization method was proposed.
Yasuhiko NAKANISHI
doaj   +1 more source

Design of Structure for a Heavy Duty Mineral Tow Machine by Evaluating the Dynamic and Static Loads [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2023
The present manuscript gives the description of findings which took importance during the design and analysis of the structure of heavy duty hauler machine ordered by Gol-e-Gohar iron ore complex in Iran.
Mehdi Akhondizadeh, Meysam Atashafrooz
doaj   +1 more source

Meta-Analysis: Exposure to Early Life Stress and Risk for Depression in Childhood and Adolescence.

open access: yesJournal of the American Academy of Child and Adolescent Psychiatry, 2020
OBJECTIVE Early life stress (ELS) is associated with increased risk for the development of major depressive disorder (MDD) in adulthood; the degree to which ELS is associated with an early onset of MDD (ie, during childhood or adolescence), however, is ...
J. LeMoult   +5 more
semanticscholar   +1 more source

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

Music therapy for stress reduction: a systematic review and meta-analysis

open access: yesHealth Psychology Review, 2020
Music therapy is increasingly being used as an intervention for stress reduction in both medical and mental healthcare settings. Music therapy is characterized by personally tailored music interventions initiated by a trained and qualified music ...
M. de Witte   +5 more
semanticscholar   +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

Meta-analysis of drought and heat stress combination impact on crop yield and yield components.

open access: yesPhysiologia Plantarum : An International Journal for Plant Biology, 2020
Episodes of prolonged drought coupled with heat waves (i.e., drought and heat combination) can have a devastating impact on agricultural production and crop yield.
I. Cohen   +4 more
semanticscholar   +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

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