Results 41 to 50 of about 759,222 (305)

Longitudinal Validation of the Brief Index of Lupus Damage [PDF]

open access: yesArthritis Care & Research, 2014
ObjectiveTo provide further validation of the Brief Index of Lupus Damage (BILD), assessing its sensitivity to change in disease status and ability to predict mortality risk.MethodsData were from the University of California, San Francisco Lupus Outcomes Study (n = 958), in which the BILD was administered twice, approximately 5 years apart. We examined
Katz, Patricia   +3 more
openaire   +4 more sources

Ship–Bridge Collision Real-Time Alarming Method Based on Cointegration Theory

open access: yesSensors
Ship–bridge collisions in inland waterways pose a serious threat to bridge infrastructure, often resulting in structural damage and jeopardizing safety.
Wanwen Zhong   +6 more
doaj   +1 more source

Detecting damage in steel beams using modal strain energy based damage index and Artificial Neural Network

open access: yes, 2017
. Structural failure can be prevented if the damage in the structure is detected at its onset and\ud appropriate retrofitting carried out. Towards this end, this paper presents a vibration-based technique,\ud using only the first vibration mode, for ...
Thambiratnam, D.P.   +8 more
core   +1 more source

The structural response and manner of progressive collapse in RC buildings under the blast and Provide approaches to retrofitting columns against blast [PDF]

open access: yesJournal of Structural and Construction Engineering, 2017
In accidents caused by explosion, the initial damage is usually caused by direct hit blast that it causes damage and serious destruction of structural components.
GholamReza Havaei, Elyas Bayat
doaj   +1 more source

Large amplitude vibrations and damage detection of rectangular plates

open access: yes, 2008
In this work, geometrically nonlinear vibrations of fully clamped rectangular plates are used to study the sensitivity of some nonlinear vibration response parameters to the presence of damage.
Trendafilova, I., Manoach, Emil
core   +1 more source

Assessment of a Substandard Reinforced Concrete Frame’s Beam–Column Joint Using Shake Table Testing

open access: yesApplied Sciences
This study investigates the seismic performance of substandard reinforced concrete (RC) frames, particularly emphasizing the behavior of beam–column joints through comprehensive shake table testing.
Evrim Oyguc, Resat Oyguc, Abdul Hayir
doaj   +1 more source

Damage identification after seismic events through damage indexes

open access: yesProcedia Structural Integrity, 2023
The seismic events that have affected the building heritage over the past years have highlighted the vulnerability and the huge direct and indirect losses associated with earthquakes. The research of methodologies able to evaluate the post-earthquake damage state is clearly decisive to allow a quick and safe estimation of the building state in the ...
Danesi, Luca   +6 more
openaire   +2 more sources

Vibration-based damage detection in structures using time series analysis

open access: yes, 2006
The paper considers some possibilities to use pure time series analysis for damage diagnosis in vibrating structures. It introduces the basics of the state space methodology and discusses a number of possible methods to extract damage sensitive features ...
Trendafilova, I.
core   +1 more source

Review of Creep Cavitation and Rupture of Low Cr Alloy and its Weldment [PDF]

open access: yes, 2013
This paper presents a review of creep cavitation and rupture of low Cr alloy and its weldment, particular in the heat-affected zone (HAZ). Creep damage is one of the serious problems for the high temperature industry.
Xu, Qiang   +6 more
core   +1 more source

Vascular endothelial growth factor in systemic lupus erythematosus in correlations with disease activity and nailfold capillaroscopic changes

open access: yesThe Egyptian Journal of Internal Medicine, 2019
Background Angiogenesis plays a role in the pathogenesis of systemic lupus erythematosus (SLE). Both serum vascular endothelial growth factor (VEGF) and capillaroscopic abnormalities may reflect intensity of microcirculatory changes in the course of SLE.
Sherin M.H Hamza   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy