Results 61 to 70 of about 1,814,413 (219)

Energy evolution‐based damage quantification and failure prediction of fault zone tunnel lining concrete: A novel acoustic emission–strain energy coupling approach

Deep Underground Science and Engineering, EarlyView.
This study investigates the damage evolution and failure mechanisms of tunnel lining concrete in active fault zones through uniaxial compression tests integrated with acoustic emission (AE) monitoring. A strong linear correlation is identified between the AE cumulative absolute energy and the total strain energy, providing a reliable energy‐based ...
Shuaida Zhu, Dongming Zhang, Mingliang Zhou, Shengjun Duo, Hongwei Huang   +4 more
wiley   +1 more source

SOME PECULIARITIES OF NEWTON–HOOKE SPACETIMES

, 2011
Newton–Hooke spacetimes are the nonrelativistic limit of (anti-)de Sitter spacetimes. We investigate some peculiar facts about the Newton–Hooke spacetimes, among which the "extraordinary Newton–Hooke quantum mechanics" and the "anomalous Newton–Hooke ...
YU TIAN
core   +1 more source

Three‐dimensional hardening‐softening elastoplastic modeling of nondilatant rock‐like materials with nonorthogonal flow rule

Deep Underground Science and Engineering, EarlyView.
A novel three‐dimensional elastoplastic constitutive model is developed for nondilatant rock‐like materials under true‐triaxial stress conditions. A piecewise yield function captures the evolution of 3D yield surfaces during hardening‐softening processes, while a fractional‐order‐controlled nonorthogonal flow rule enables flexible regulation of ...
Jiacun Liu, Dongping Liu, Cifeng Cheng, Ying Xu, Kaiwen Xia   +4 more
wiley   +1 more source

Nonlinear rheological models and their application to describe the mechanical behavior of highly oriented polymer materials

Научно-технический вестник информационных технологий, механики и оптики
The nonlinear viscoelasticity of uniaxial oriented polymer materials is considered. To explain the deformation mechanisms of oriented polymers and the possibility of predicting their mechanical behavior in various operating modes, new nonlinear ...
V. V. Golovina, D. S. Vavilov, O. B. Prishchepenok   +2 more
doaj   +1 more source

Orientation‐Dependent Nucleation and Propagation of Scratch‐Induced Dislocations in PVT‐Grown 4H‐SiC

Electron, EarlyView.
In PVT‐grown 4H‐SiC, seed‐scratch orientation controls TED/BPD nucleation. Relative to step‐flow 112‾0 $\left[11\overline{2}0\right]$, 0° ≤ θ ≤ 40° favors TEDs, 0° ≤ θ ≤ 40° yields mixed TEDs/BPDs, and 70° < θ ≤ 90° favors BPDs. This provides a practical defect‐engineering route to improve electronic‐grade substrate quality.
Wenhao Han, Zhenxing Fu, Xianglong Yang, Xiufang Chen, Xuejian Xie, Li Sun, Guanglei Zhong, Xixi Xiong, Guojie Hu, Hongyu Shao, Guojian Yu, Xiangang Xu   +11 more
wiley   +1 more source

Estimation of Subtype‐Specific Tumour Growth Rate Distributions and Interval Cancer Proportions in Breast Cancer Using Biology‐Inspired Natural History Models

International Journal of Cancer, EarlyView.
ABSTRACT Breast cancer progression varies across molecular subtypes, influencing detection rates and prognosis. Differences in the proportion of interval cancers (PIC)—cancers detected symptomatically between scheduled screening rounds—have been observed across subtypes, likely reflecting heterogeneity in tumour growth dynamics. We applied a continuous‐
Letizia Orsini, Yuqi Zhang, Kamila Czene, Keith Humphreys   +3 more
wiley   +1 more source

I'm a True Believer in mentorship

, 2022
"Beyond the Nest" Podcast, Season 3 Episode 2; Runtime 28:32In this episode of Beyond the Nest, 2016 UMR graduate, Dr. Hawa Ali, catches up with her Student Success Coach Jenn Hooke. Now a resident at the Mayo Clinic, Dr.
Ali, Hawa, Hooke, Jenn
core  

Thermomechanical Properties of Natural Rubber/OPEFB Composites With Hybrid Latex–Starch Coupling Agent

Macromolecular Symposia, EarlyView.
ABSTRACT Natural rubber composites remain essential for industrial applications in Indonesia, particularly in tire manufacturing, where improved rigidity and strength are required. This study investigates the use of oil palm empty fruit bunch fiber as a sustainable filler to enhance the thermomechanical properties while promoting agricultural waste ...
Arlina Prima Putri, Arbi Hasby Shadiqie, Bambang Priyono, Rina Ningtyas, Hiroshi Uyama, Mochamad Chalid   +5 more
wiley   +1 more source

A New Model of Feeding Biomechanics Based on Tied‐Arch Principles

Integrative Zoology, EarlyView.
This new biomechanical model explains the major stress and strain patterns generated through the cranium during biting. The model proposes that the cranium resolves bite‐induced reaction forces through arcs of compressive stress that span the cranial structure between biting teeth and both jaw joints.
D. Rex Mitchell
wiley   +1 more source

Benjamin Robins's New Principles of Gunnery and the Response From the British Mathematical, Educational, and Military World of the Mid‐Eighteenth Century

Journal for Eighteenth-Century Studies, EarlyView.
Abstract This article analyses to what degree Benjamin Robins's discoveries in his book New Principles of Gunnery, 1742, affected the British mathematical, military, and educational world of the mid‐eighteenth century. While it drew praise and critique from Europe, especially from the notable mathematician Leonhard Euler, his mathematical theories were
Samuel Dodson
wiley   +1 more source