Results 31 to 40 of about 10,039,203 (328)
Natural frequencies and the representation of risk [PDF]
International Journal for Quality in Health Care, 2002 To the Editor: The findings reported by Olsen and Gotzschel in a recent paper in The Lancet have re-sparked a heated controversy concerning the merits (or lack thereof) of mammography screening [1]. The dispute is not confined to the medical realm, but has political, economical, and ethical ramifications as well.
openaire +2 more sources
Effect of delamination on the stochastic natural frequencies of composite laminates
Composites Part B: Engineering, 2018 The coupled effect of manufacturing uncertainty and a critical service-life damage condition (delamination) is investigated on the natural frequencies of laminated composite plates.
T. Mukhopadhyay +4 more
semanticscholar +1 more source
, 2010 This paper shows that the transient response of a plate undergoing flexural vibration can be calculated accurately and efficiently using the natural frequencies and modes obtained from the superposition method.
Ilanko, Sinniah, Yusuke, Mochida
core +1 more source
Natural vibration frequencies of delaminated composite beams
Computer Assisted Methods in Engineering and Science, 2023 In the presented work a model of a layered, delaminated composite beam based on the finite elements method was introduced. In this model the beam was divided into finite elements, while the delamination was modelled using additional boundary conditions.
Marek Krawczuk +2 more
doaj
International Journal of Naval Architecture and Ocean Engineering, 2014 : The main objective of this paper is to propose a new Finite Element (FE) model updating technique for damped beam structures. The present method consists of a FE model updating, a Degree of Freedom (DOF) reduction method and a damping matrix ...
Cheon-Hong Min +3 more
doaj +3 more sources
Theoretical Analyses of the Dynamic Behaviour of Composite Cantilever Beam Manufactured From E-glass Polyester [PDF]
Engineering and Technology Journal, 2009 In order to have the right combination of manufactured E-glass polyestercomposite properties and in service performance, the dynamic behaviour is one of the important properties to evaluate.
Hayder Moasa Al-Shukri +2 more
doaj +1 more source
, 2008 Psychophysical studies suggest that humans preferentially use a narrow band of low spatial frequencies for face recognition. Here we asked whether artificial face recognition systems have an improved recognition performance at the same spatial ...
Matthias S Keil +10 more
core +1 more source
Comparative study between random vibration and linear static analysis using Miles method for thruster brackets in space structures [PDF]
INCAS Bulletin, 2017 Random vibrations occur during the launch at the fastening interface between thruster brackets and basic support of satellite. These are generated in the launcher by the motion of some mechanical parts, combustion phenomena or structural elements excited
Ion DIMA +5 more
doaj +1 more source
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Patients requiring long‐term continuous renal replacement therapy (CRRT) generally have poor prognoses. This study evaluated whether adding continuous intravenous sodium infusion (cIVNa) is associated with improved hemodynamics and outcomes in patients undergoing long‐term CRRT for ≥ 7 days.
Akinori Yamaguchi +6 more
wiley +1 more source
Artificial optical emissions at HAARP for pump frequencies near the third and second electron gyro-harmonic [PDF]
, 2005 International audienceHigh-power high-frequency radio waves beamed into the ionosphere cause plasma turbulence, which can accelerate electrons. These electrons collide with the F-layer neutral oxygen causing artificial optical emissions identical to ...
F. T. Djuth +17 more
core +1 more source