Results 61 to 70 of about 1,651 (213)

Influence of mean stress on fatigue strength of stainless steel

open access: yesNihon Kikai Gakkai ronbunshu, 2014
In order to incorporate the mean stress effect in the design fatigue curve for designing nuclear power plant components, change in fatigue strength due to the mean stress and root causes of the change were investigated for Type 316 stainless steel. First,
Masayuki KAMAYA, Masahiro KAWAKUBO
doaj   +1 more source

Ratchet effect in dc SQUIDs [PDF]

open access: yesEurophysics Letters (EPL), 2000
We analyzed voltage rectification for dc SQUIDs biased with ac current with zero mean value. We demonstrate that the reflection symmetry in the 2-dimensional SQUID potential is broken by an applied flux and with appropriate asymmetries in the dc SQUID.
Weiss, S.   +4 more
openaire   +2 more sources

Photoreversible Polyurea Actuators With Spatiotemporal Control and Adaptive Mechanics

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A light–thermal responsive polyurea network incorporating reversibly dimerizable anthracene units enables spatiotemporal modulation of cross‐linking density and nearly 400‐fold stiffness tuning. Integrating programmable anisotropy, photopatterning, self‐healing, and photowelding within a single framework, this bioinspired “one network–multifunction ...
Zhiwen Song   +7 more
wiley   +1 more source

Absence seizures: Update on signaling mechanisms and networks

open access: yesEpilepsia Open, EarlyView.
Abstract Absence seizures (AS) are a hallmark of genetic generalized epilepsies (GGE), characterized by brief episodes of impaired consciousness accompanied by electroencephalographic spike‐and‐wave discharges (SWDs). Traditionally attributed to cortico‐thalamo‐cortical (CTC) dysrhythmia, emerging evidence suggests a more intricate pathophysiological ...
Ozlem Akman, Filiz Onat
wiley   +1 more source

Experimental Investigation of the Mechanical Behavior of the Strain Isolation Pad in Thermal Protection Systems under Tension

open access: yesAerospace
A strain isolation pad is a critical connection mechanism that enables deformation coordination between the rigid thermal insulation tile and the primary structure in the thermal protection system of a reusable hypersonic vehicle.
Maoxu Lu   +3 more
doaj   +1 more source

Magnus-induced ratchet effects for skyrmions interacting with asymmetric substrates

open access: yesNew Journal of Physics, 2015
We show using numerical simulations that pronounced ratchet effects can occur for ac driven skyrmions moving over asymmetric quasi-one-dimensional substrates.
C Reichhardt   +2 more
doaj   +1 more source

Climate Driven Water Table Changes and Their Influence on Liquefaction Response of Integral Bridges

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Integral abutment bridges (IABs) eliminate bearings and joints but transfer seismic demand directly into the surrounding soil, making their response highly sensitive to groundwater conditions and soil–structure interaction. This study presents a 60 g centrifuge testing programme on single‐span IABs designed to isolate the influence of water ...
Yazan B. Asia, Gopal S. P. Madabhushi
wiley   +1 more source

LOW CYCLE FATIGUE LIFE PREDICTIONS OF 15CrMoR PARENT MATERIAL AND WELD METAL

open access: yesJixie qiangdu, 2016
Butt-weld specimen has been made for coke drum material 15 Cr MoR. For both parent and weld materials,uniaxial tensile tests and uniaxial ratcheting tests have been conducted under different temperatures.
MA Kai   +3 more
doaj  

Use of ultrasonography in assessing peri‐implant osseous defects: An in vitro study

open access: yesJournal of Periodontology, EarlyView.
Abstract Background The purpose of this study is to investigate the feasibility and diagnostic accuracy of ultrasonography in peri‐implant defect identification and evaluation, and to compare ultrasonography (USG) with cone‐beam computed tomography (CBCT) in defect identification and evaluation in an in vitro model.
Melissa Rachel Fok   +4 more
wiley   +1 more source

Low cycle fatigue behavior and deformation mechanism of Ti–6Al–4V-0.55Fe alloy under the control of strain and stress amplitudes

open access: yesJournal of Materials Research and Technology
The present study focuses on investigating the low cycle fatigue (LCF) behavior and cyclic deformation mechanism of Ti–6Al–4V-0.55Fe alloy under strain and stress control.
Yangyang Sun   +6 more
doaj   +1 more source

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