Results 41 to 50 of about 28,811 (266)

Study on Bond Defect Detection in Grouted Rock Bolt Systems under Pullout Loads

Advances in Materials Science and Engineering, 2022
In grouted rock bolt systems, bond defects often occur, which seriously affects the safety of rock mass structures. Therefore, in this study, based on the existence of bond defects, laboratory tests were conducted to detect the location and length of ...
Shuisheng Yu, Leilei Niu, Jin Chen, Yawei Wang, Honghao Yang   +4 more
doaj   +1 more source

ADP‐ribosylation: An emerging regulator of the epigenome

Molecular Oncology, EarlyView.
ADP‐ribosylation has emerged as a dynamic epigenetic signaling mechanism that modifies histones and chromatin‐associated proteins. Through coordinated PARylation and MARylation, it integrates with other histone modifications to regulate chromatin structure, transcription factor activity, and gene expression, influencing genome function and disease ...
Cristel V. Camacho, Chenqian Liu, W. Lee Kraus   +2 more
wiley   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source

Propagation and failure characteristics of stress wave of full anchor solid under dynamic load

Meitan xuebao, 2023
Dynamic stresses severely disrupt and distort deep shaft roadways. It is critical to understand the stress wave propagation and damage characteristics of anchor support body under dynamic loads.
Jucai CHANG, Chao QI, Zhiqiang YIN, Wenbao SHI, Xiang GAO   +4 more
doaj   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Dynamic Behavior and Computational Investigation of Tunnel Blasting Subjected to Varying Geostresses

Modelling
To examine the dynamic response of tunnel floor slabs subjected to blasting under varying stress conditions, a numerical model was developed to simulate blasting effects at different tunnel depths.
Hualong Li, Yong Mei, Yunhou Sun, Zixun Wu, Shengyi Cong, Shaojun Cao   +5 more
doaj   +1 more source

Three-dimensional internal failure propagation by spherical elastic waves in fused silica glass plate subjected to hypervelocity impact of debris

Nihon Kikai Gakkai ronbunshu, 2018
With the development of spacecraft, the brittle materials like ceramics and glass have been used for significant components especially in optical and thermal systems.
Mikio NAGANO, Nobuaki KAWAI, Sunao HASEGAWA, Koichi KITAZONO, Eiichi SATO   +4 more
doaj   +1 more source

Ontology‐Aligned Structuring and Reuse of Multimodal Materials Data and Workflows Toward Automatic Reproduction

Advanced Engineering Materials, EarlyView.
Reproduction of stacking fault energy calculations from literature with a semi‐automated large language model‐assisted extraction procedure: extraction of simulation protocol, atomistic structures, computational parameters, and reported results, ontology alignment, knowledge graph construction and, finally, recomputation forvalidation.
Sepideh Baghaee Ravari, Abril Azocar Guzman, Sarath Menon, Stefan Sandfeld, Tilmann Hickel, Markus Stricker   +5 more
wiley   +1 more source

Energy dissipation and fracture characteristics of composite layered rock under dynamic load

工程科学学报, 2023
Six combinations of layered composite rocks were prepared using sandstone, dali rock, and granite. The composite rock specimens underwent a dynamic impact test using the separated Hopkinson pressure rod test system, and the failure patterns of the ...
Yang LI, Yanbing WANG, Dairui FU, Houwei WU, Zhen LIU   +4 more
doaj   +1 more source