Results 71 to 80 of about 129,655 (286)

Technology of crack detection in reinforced concrete structures [PDF]

, 2020
Some crucial signs of structural failure that are critical for repair would be cracks on the structures as well as constant exposure that can result in severe environmental damage. Being able to detect cracks on structures is becoming an essential aspect
Adnan, Suraya Hani, Hanipah, Mohd Hafizal, Osman, Mohamad Hairi, Pakir, Faizal, Wan ]usoh, Wan Amizah, Zakaria, Mohd Azuan   +5 more
core  

Coarse-to-fine crack cue for robust crack detection

Pattern Recognition
Crack detection is an important task in computer vision. Despite impressive in-dataset performance, deep learning-based methods still struggle in generalizing to unseen domains. The thin structure property of cracks is usually overlooked by previous methods.
Zelong Liu, Yuliang Gu, Zhichao Sun, Huachao Zhu, Xin Xiao, Bo Du, Laurent Najman, Yongchao Xu   +7 more
openaire   +3 more sources

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

FEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman, Anna E. Lester, Brian D. Zoltowski   +2 more
wiley   +1 more source

Digital image processing of the Ghent altarpiece : supporting the painting's study and conservation treatment [PDF]

, 2015
In this article, we show progress in certain image processing techniques that can support the physical restoration of the painting, its art-historical analysis, or both.
Cornelis, Bruno, Daubechies, Ingrid, De Mey, Marc, Devolder, Bart, Dooms, Ann, Dubois, Hélène, Martens, Maximiliaan, Pizurica, Aleksandra, Platisa, Ljiljana, Ruzic, Tijana   +9 more
core   +2 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Intelligent Crack Detection and Quantification in the Concrete Bridge: A Deep Learning-Assisted Image Processing Approach

Advances in Civil Engineering, 2022
We proposed a modified concrete bridge crack detector based on a deep learning-assisted image processing approach. Data augmentation technology is introduced to extend the limited dataset.
Licun Yu, Shuanhai He, Xiaosong Liu, Shuqing Jiang, Shuiying Xiang   +4 more
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Effective Crack Damage Detection Using Multilayer Sparse Feature Representation and Incremental Extreme Learning Machine

Applied Sciences, 2019
Detecting cracks within reinforced concrete is still a challenging problem, owing to the complex disturbances from the background noise. In this work, we advocate a new concrete crack damage detection model, based upon multilayer sparse feature ...
Baoxian Wang, Yiqiang Li, Weigang Zhao, Zhaoxi Zhang, Yufeng Zhang, Zhe Wang   +5 more
doaj   +1 more source

Damage detection in beams from modal and wavelet analysis using a stationary roving mass and noise estimation [PDF]

, 2018
This paper uses the Continuous Wavelet Transform Analysis on mode shapes for damage identification. The wavelet analysis is applied to the difference in the mode shapes between a healthy and a damaged state.
Andreaus, Bendat, Cao, Fan, García, Gentile, Jiang, Katunin, Katunin, Katunin, Katunin, Limongelli, Mallat, Montanari, Ovanesova, Panopoulou, Rajendran, Ren, Rucka, Rucka, Shao, Solís, Solís, Strang, Taha, Ulriksen, Unger, Xu, Xu, Yang, Yi, Zhong, Zhong, Zhong   +33 more
core   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source