Results 41 to 50 of about 107,029 (283)

Development of a Horizontal Pneumatic Test System for Shock Response Spectrum

open access: yesJournal of Physics: Conference Series, 2022
Abstract Pendulum impact test equipment cannot meet the high magnitude test demand of large products. This paper designed a pneumatic impact test which can make a high-magnitude impact test, giving the design principle of the pneumatic impact test system, introducing the design methods of the pneumatic test system.
Shen Zhiqiang   +4 more
openaire   +1 more source

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

open access: yesFEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard   +12 more
wiley   +1 more source

Free serum cortisol during the postoperative acute phase response determined by equilibrium dialysis liquid chromatography-tandem mass spectrometry [PDF]

open access: yes, 2003
In severely ill patients low concentrations of the corticosteroid binding globulin are typically found; the aim of this study was to quantify directly free bioactive cortisol concentrations in the sera of postoperative cardiosurgical patients.
Küpper, Christina   +3 more
core   +1 more source

Effect of terahertz irradiation on DNA damage repair in living cells

open access: yesFEBS Open Bio, EarlyView.
We investigated the effect of terahertz (THz) wave irradiation on DNA double‐strand break (DSB) repair in living cells. We found that THz irradiation enhanced DSB repair at specific frequencies, whereas heat treatment inhibited it, indicating that this effect is nonthermal and frequency‐specific.
Yuya Ueno   +3 more
wiley   +1 more source

The Spherical Shock Factor Theory of a FSP with an Underwater Added Structure

open access: yesShock and Vibration, 2019
A floating shock platform (FSP) is important experimental equipment for the antishock assessment of large-scale shipborne equipment. Generally speaking, the FSP is a square barge structure with a flat bottom.
Guo Jun   +3 more
doaj   +1 more source

Shock resistance evaluation method of ship air bottle-base connection structure

open access: yesZhongguo Jianchuan Yanjiu, 2018
[Objectives] As an important component connecting the equipment and structure of a submarine, the shock resistance of the base structure has an important impact on the ship's survivability.
GUO Jun   +3 more
doaj   +1 more source

Metric of Shock Severity [PDF]

open access: yes, 2020
Shock response spectrum (SRS) is a widely accepted method for shock testing specification. However, SRS, as a supremum, is over-conservative and cannot fully describe the relative severity for various shock environments.
Yan, Yinzhong, Li, Qingming; id_orcid
core   +1 more source

Functional and Structural Evidence of Neurofluid Circuit Aberrations in Huntington Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Disrupted neurofluid regulation may contribute to neurodegeneration in Huntington disease (HD). Because neurofluid pathways influence waste clearance, inflammation, and the distribution of central nervous system (CNS)–delivered therapeutics, understanding their dysfunction is increasingly important as targeted treatments emerge.
Kilian Hett   +8 more
wiley   +1 more source

Pyroshock Acceleration Field Reconstruction in Temporal and Spectral Domains Based on Laser Shock Scanning and Iterative Decomposition and Synthesis Considering Stop Band Effects

open access: yesShock and Vibration, 2017
Pyrotechnic devices are used to separate substructures from main structures. Pyroshock can cause failure in electronic components that are sensitive to high frequency shock.
Yong-Woon Kim   +2 more
doaj   +1 more source

Condition Monitoring to Enable Predictive Maintenance on a Six-Die Nut Manufacturing Machine through Force Data Analysis

open access: yesApplied Sciences, 2022
Nut fasteners are produced by machines working around the clock. Companies generally operate with a run-to-failure or planned maintenance approach.
Xux Ek’ Azucena Novelo, Hsiao-Yeh Chu
doaj   +1 more source

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