Results 21 to 30 of about 27,763,422 (276)

Structural health monitoring by merging dynamic response data

open access: yesMagazine of Civil Engineering, 2022
The process of Structural Health Monitoring aims to detect changes in material and/or geometric properties, boundary conditions or member connectivity of a structural system in time.
Gaile Liga   +2 more
doaj   +1 more source

Automated Harmonic Signal Removal Technique Using Stochastic Subspace-Based Image Feature Extraction

open access: yesJournal of Imaging, 2020
This paper presents automated harmonic removal as a desirable solution to effectively identify and discard the harmonic influence over the output signal by neglecting any user-defined parameter at start-up and automatically reconstruct back to become a ...
Muhammad Danial Bin Abu Hasan   +3 more
doaj   +1 more source

Operational Modal Analysis for Seismic Protection of Structures [PDF]

open access: yes, 2008
This thesis focuses on output-only modal identification tests and on the opportunities they provide in the field of seismic protection of structures. The problem of a good measurement process, in order to obtain high quality data and reliable results ...
Rainieri, Carlo
core   +1 more source

FINITE ELEMENT MODEL UPDATING OF A HISTORICAL MINARET VIA OPERATIONAL MODAL ANALYSIS [PDF]

open access: yes, 2017
7th International Operational Modal Analysis Conference -- MAY 09-12, 2017 -- Ingolstadt, GERMANYFinite element method is commonly used for analysis of historical structures.
Hokelekli, E.   +7 more
core   +5 more sources

Parameter Study of Statistics of Modal Parameter Estimates Using Automated Operational Modal Analysis [PDF]

open access: yes, 2019
For any modal parameter estimation (MPE) method, there are a few control inputs that can have an impact on the modal parameter estimates. These control inputs are typically involving parameters like the maximum model order and how many time values or frequency lines that should be included in the MPE.
Christensen, Silas S., Brandt, Anders
openaire   +2 more sources

Identification of Noise, Vibration and Harshness Behavior of Wind Turbine Drivetrain under Different Operating Conditions

open access: yesEnergies, 2019
Noise, vibration and harshness (NVH) problems are critical issues to be tackled for wind turbine drivetrains. Tracking the behavior of modal parameters of the machines’ fundamental modes during operation it is of high interest to validate complex ...
Nicoletta Gioia   +3 more
doaj   +1 more source

Vibration-Based Monitoring of Wind Turbines: Influence of Layout and Noise of Sensors

open access: yesEnergies, 2021
The reduction in operating and maintenance costs of wind farms is a fundamental element to guarantee the competitiveness and growth of the wind market. Wind turbines are highly dynamic structures prone to wear during their lifetime.
João Pacheco   +4 more
doaj   +1 more source

Modal Identification Techniques for Concrete Dams: A Comprehensive Review and Application

open access: yesSci
Throughout history, the implementation of structural health monitoring systems has played a crucial role in evaluating the responses of dams to environmental and human-induced threats. By continuously monitoring structural integrity and analyzing dynamic
Hasan Mostafaei
doaj   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav   +2 more
wiley   +1 more source

Leucine‐rich glioma inactivated 1 (LGI1) is a ganglioside‐binding protein

open access: yesFEBS Letters, EarlyView.
Neuronal hyperexcitability associated with a decrease/absence of the extracellular protein LGI1 has been suggested to be primarily due to the downregulation of Kv1 channel expression. The molecular mechanisms underlying this decrease have not yet been elucidated.
Kévin Debreux   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy