Results 21 to 30 of about 1,822,978 (208)

Percussion and PSO-SVM-Based Damage Detection for Refractory Materials

open access: yesMicromachines, 2023
Refractory materials are basic materials widely used in industrial furnaces and thermal equipment. Their microstructure is similar to that of many heterogeneous high-performance materials used in micro/nanodevices.
Dan Yang   +4 more
doaj   +1 more source

Model-Based Damage Localization Using the Particle Swarm Optimization Algorithm and Dynamic Time Wrapping for Pattern Recreation

open access: yesSensors, 2023
Vibration-based damage detection methods are a subcategory of Structural Health Monitoring (SHM) methods that rely on the fact that structural damage will affect the dynamic characteristic of a structure.
Ilias Zacharakis, Dimitrios Giagopoulos
doaj   +1 more source

Correlating low energy impact damage with changes in modal parameters: diagnosis tools and FE validation [PDF]

open access: yes, 2011
This paper presents a basic experimental technique and simplified FE based models for the detection, localization and quantification of impact damage in composite beams around the BVID level.
Abrate S.   +16 more
core   +3 more sources

Transverse Damage Localization and Quantitative Size Estimation for Composite Laminates Based on Lamb Waves

open access: yesIEEE Access, 2019
The damage detection method for composite laminates introduced in this research uses piezoelectric (lead zirconate titanate, PZT) transducers to excite/sense the Lamb wave signals. The complicated wave signals scattered by damage are accurately processed
M. Saqib Hameed, Zheng Li
doaj   +1 more source

Cardiac troponin I as compared to troponin T for the detection of myocardial damage in horses [PDF]

open access: yes, 2015
Background: Different cardiac troponin I (cTnI) assays give different results. Only 1 manufacturer has marketed troponin T (cTnT) assays. Therefore, cTnT often is preferred for detection of myocardial infarction in human patients.
De Clercq, Dominique   +4 more
core   +1 more source

Indirect Detection of DNA Damage [PDF]

open access: yesChemistry & Biology, 2005
In this issue of Chemistry and Biology, Naegeli and coworkers show that the nucleotide excision repair system of mammalian cells detects bulky DNA adducts, not by recognition of the adduct per se, but by recognition of the undamaged partner strand in bulged form.
openaire   +2 more sources

Damage Detection of An Automobile

open access: yesInternational Journal of Engineering Research in Computer Science and Engineering, 2022
As a result of the proliferation of automobile in- dustries today. There have been an increasing number of car accidents, not all of which are serious, but the automobile is damaged. Detecting automobile damage at the site of an accident using images is exceptionally beneficial as it may significantly lower the cost of processing the insurance ...
R Melvin Raj   +4 more
openaire   +1 more source

Detection of Pin Failure in Carbon Fiber Composites Using the Electro-Mechanical Impedance Method

open access: yesSensors, 2020
This paper presents a proof of concept for simultaneous load and structural health monitoring of a hybrid carbon fiber rudder stock sample consisting of carbon fiber composite and metallic parts in order to demonstrate smart sensors in the context of ...
Jochen Moll   +5 more
doaj   +1 more source

Influence of changes in the prestress force on dynamic specifications of the prestressed concrete beam [PDF]

open access: yesNumerical Methods in Civil Engineering, 2020
Pre-stress techniques tend to increase cross-sectional capacity and optimize design. Such features have made these techniques rather popular. Over time, these structures tend to fail, and the reduction of pre-stress force over the lifetime of the ...
Behrouz Babakhani, Hossein Rahami
doaj   +1 more source

Alterations of the Coxiella burnetii Replicative Vacuole Membrane Integrity and Interplay with the Autophagy Pathway

open access: yesFrontiers in Cellular and Infection Microbiology, 2017
Coxiella burnetii, the etiologic agent of Q fever, is a Gram-negative obligate intracellular bacterium. It has been previously described that both the endocytic and autophagic pathways contribute to the Coxiella replicative vacuole (CRV) generation ...
Frank Lafont   +3 more
doaj   +1 more source

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