Results 51 to 60 of about 445,228 (283)

Research on Features of Pipeline Crack Signal Based on Weak Magnetic Method

open access: yesSensors, 2020
Quantitative online detection of microcracks in long-distance oil and gas pipelines is an international problem, and the effective detection method is still lacking.
Bin Liu   +5 more
doaj   +1 more source

Assessment of crack growth development in main pipeline on the basis of elastoplastic model [PDF]

open access: yesОмский научный вестник, 2019
A method for predicting the growth of surface cracks in the wall of the main pipeline under action of operational loads is proposed. The elastoplastic model of surface crack growth under biaxial loading is described on the example of steel 20.
К. А. Vansovich   +3 more
doaj   +1 more source

Performance of Epoxy-Injection and Microorganism-Based Crack-Healing Techniques on Cracked Flexural Members

open access: yesBuildings, 2023
Reinforced concrete (RC) members are designed to crack and the crack width usually remains within the service limit; however, these micro-cracks make structures susceptible to the infiltration of aggressive substances, especially near the coastline. Thus,
Sadaqat Ullah Khan   +2 more
doaj   +1 more source

Correlation between the pivot node concept and fatigue crack closure [PDF]

open access: yes, 2018
The study of fatigue crack growth has been commonly done by means of bi-dimensional models and assuming a homogeneous behaviour through the thickness. According to the specimen thickness, a state of plane stress or plane strain is presumed.
Camas, Daniel   +2 more
core  

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

open access: yesFEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Coupling generalized FC model to meshless EFG method for crack growth analysis in quasi-brittle materials

open access: yesComputer Assisted Methods in Engineering and Science, 2023
In the paper a crack growth analysis in quasi brittle materials in plane stress state coupling the Fictitious Crack model to meshless Element-Free Galerkin method is presented. The FC model has been generalized and as a result a uniform algorithm of the
Czesław Cichoń, Jan Jaśkowiec
doaj  

Influence of local mechanical loadings paths on the oxidation assisted crack initiation of alloy 718 [PDF]

open access: yes, 2011
At high temperatures, alloy 718, like many other nickel-based superalloys, is sensitive to an oxidation-assisted intergranular crack (OAIC) growth mechanism.
Andrieu, Eric   +3 more
core   +3 more sources

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Experimental Study on Fatigue Damage Detection of Drilling Riser Weld

open access: yesShiyou jixie, 2020
To effectively obtain the crack length during the fatigue damage process of the riser weld to determine its fatigue damage state, the magnetic memory detection test of the fatigue damage of the X80 pipeline steel weld for the riser was carried out ...
Zhou Wei   +5 more
doaj  

Numerical Analysis of Joule Heating Behavior and Residual Compressive Stress around Crack Tip under High Electric Load

open access: yesModelling and Simulation in Engineering, 2017
This paper discusses the Joule heating effect and residual compressive stress near the crack tip under the electro-thermo-structural coupling state.
Thomas Jin-Chee Liu
doaj   +1 more source

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