Results 11 to 20 of about 936,745 (311)

Broad spectrum detection of DNA damage by Repair Assisted Damage Detection (RADD) [PDF]

open access: yesDNA Repair, 2018
Environmental exposures, reactive by-products of cellular metabolism, and spontaneous deamination events result in a spectrum of DNA adducts that if un-repaired threaten genomic integrity by inducing mutations, increasing instability, and contributing to the initiation and progression of cancer.
Holton, Nathaniel W.   +2 more
openaire   +3 more sources

Principal component analysis and perturbation theory–based robust damage detection of multifunctional aircraft structure [PDF]

open access: yes, 2013
A fundamental problem in structural damage detection is to define an efficient feature to calculate a damage index. Furthermore, due to perturbations from various sources, we also need to define a rigorous threshold whose overtaking indicates the ...
HAJRYA, Rafik, MECHBAL, Nazih
core   +1 more source

Disaster assessment using computer vision and satellite imagery: Applications in detecting water-related building damages

open access: yesFrontiers in Environmental Science, 2022
The increasing frequency and severity of water-related disasters such as floods, tornadoes, hurricanes, and tsunamis in low- and middle-income countries exemplify the uneven effects of global climate change.
Danu Kim   +11 more
doaj   +1 more source

Mitigation of model error effects in neural network-based structural damage detection

open access: yesFrontiers in Built Environment, 2023
This paper proposes a damage detection procedure based on neural networks that is able to account for the model error in the network training. Vibration-based damage detection procedures relied on machine learning techniques hold great promises for the ...
Federico Ponsi   +2 more
doaj   +1 more source

Damage detection of wire ropes by the feature extraction using multi-sensor data in two-dimensional plane

open access: yesNihon Kikai Gakkai ronbunshu, 2021
Inspection using magnetic sensors based on the magnetic flux leakage testing method as soundness evaluation of wire ropes is being performed. Recently, it has been studied as detailed soundness evaluation method of the wire rope by analyzing the ...
Kenya OHTSUKA, Yoshio AOKI
doaj   +1 more source

Evaluation of rope strand noise in wire ropes inspection using the magnetic flux leakage testing

open access: yesNihon Kikai Gakkai ronbunshu, 2021
Magnetic flux leakage testing to compensate for the visual inspection in the inspection of the wire ropes has been studied. In recent years, it has become possible to improve the damage detection accuracy by using a device which utilizes the hall effect ...
Kenya OHTSUKA   +2 more
doaj   +1 more source

Physics-Based Graphics Models in 3D Synthetic Environments as Autonomous Vision-Based Inspection Testbeds

open access: yesSensors, 2022
Manual visual inspection of civil infrastructure is high-risk, subjective, and time-consuming. The success of deep learning and the proliferation of low-cost consumer robots has spurred rapid growth in research and application of autonomous inspections ...
Vedhus Hoskere   +2 more
doaj   +1 more source

Investigation on Applicability and Limitation of Cosine Similarity-Based Structural Condition Monitoring for Gageocho Offshore Structure

open access: yesSensors, 2022
The key to coping with global warming is reconstructing energy governance from carbon-based to sustainable resources. Offshore energy sources, such as offshore wind turbines, are promising alternatives. However, the abnormal climate is a potential threat
Byungmo Kim, Jaewon Oh, Cheonhong Min
doaj   +1 more source

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

open access: yes, 2010
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.
Niemann, Hanno   +7 more
core   +1 more source

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

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