Results 21 to 30 of about 587,882 (318)

Helmet to head coupling by multi-body system

open access: yesApplied and Computational Mechanics, 2019
The number of fatalities proves that traffic accidents and their consequences are still a serious problem to be solved. Almost half of the people dying on the world’s roads are pedestrians, cyclists, and two-wheeler riders, which are together called ...
Hynčík L., Bońkowski T.
doaj   +1 more source

Epidemiological peculiarities of seasonal flu morbidity in the Republic of Moldova [PDF]

open access: yes, 2022
Introduction. Influenza affects 5-10% of the human population each year and spreads to all geographical areas. The loss of life and economic costs become considerable during the annual flu epidemics and can be enormous during pandemics with new strains.
Enachi, Daniela
core  

Highly qualified in the Czech Republic

open access: yes, 2017
The paper aims to analyse the current situation of the highly qualified in the Czech Republic applying the ISCO qualification. Previous studies suggest that educational attainment has an important impact on labour market performance and national ...
Čuhlová Renata, Pěničková Zuzana
core   +1 more source

Linear and Nonlinear Models for Drop Simulation of an Aircraft Landing Gear System with MR Dampers

open access: yesActuators, 2023
In this study, our focus is on the drop test simulation of an MR (Magnetorheological) damper-based main landing gear (MRMLG), aiming to explore multi-degree-of-freedom (DOF) dynamic models during aircraft landing. Three different 6-DOF dynamic models are
Byung-Hyuk Kang   +4 more
doaj   +1 more source

Modelling of the friction-vibration interactions in reactor core barrel couplings

open access: yesApplied and Computational Mechanics, 2018
The key-groove couplings between the lower part of core barrel and reactor pressure vessel in the nuclear VVER-type reactor show assembly side clearances.
Zeman V., Hlaváč Z.
doaj   +1 more source

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

open access: yesFEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas   +6 more
wiley   +1 more source

Biomass, abundances, and abundance and geographical range size relationship of birds along a rainforest elevational gradient in Papua New Guinea [PDF]

open access: yesPeerJ, 2020
The usually positive inter-specific relationship between geographical range size and the abundance of local bird populations comes with exceptions. On continents, the majority of these exceptions have been described from tropical montane areas in Africa,
Katerina Sam, Bonny Koane
doaj   +2 more sources

The Empiricist Strikes Back

open access: yes, 2008
Version of ...
Sunstein, Cass
core   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

Prognostics and Health Management Using Nonlinear Cumulative Damage Model for Electronic Devices Under Variable Loading

open access: yesIEEE Access
This paper explores nonlinear cumulative damage models applied to Prognostics and Health Management in electronic systems, with a focus on solder joint reliability under variable vibrations.
Suyeon Lee, Seungil Park, Changwoon Han
doaj   +1 more source

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