Results 91 to 100 of about 4,694 (195)

Haemodynamic responses to small muscle mass exercise before and after lung transplantation in end‐stage chronic obstructive pulmonary disease

Experimental Physiology, Volume 111, Issue 8, Page 3604-3619, 1 August 2026.
Abstract Cardiovascular control during exercise is impaired in chronic obstructive pulmonary disease (COPD). The central cardiopulmonary pathologies in COPD might drive the local muscle vascular abnormalities. We hypothesised that contracting muscle perfusion and O2 utilisation improve after lung transplantation (LTx) in COPD.
Camilla Koch Ryrsø, Thomas Kromann Lund, Pia Thaning, Lasse Gliemann, Michael Perch, Jacob Peter Hartmann, Ida Kær Thorsen, Gregers Winding Munch, Stefan P. Mortensen, Ylva Hellsten, Ronan M. G. Berg, Ulrik Winning Iepsen   +11 more
wiley   +1 more source

Vision Transformers for Modeling of Nonlinear Heterogeneous Materials

International Journal for Numerical Methods in Engineering, Volume 127, Issue 14, 30 July 2026.
ABSTRACT Multiscale simulations of nonlinear heterogeneous materials and composites are challenging due to the prohibitive computational costs of high‐fidelity simulations. Recently, machine learning (ML) based approaches have emerged as promising alternatives to traditional multiscale methods.
Yijing Zhou, Shabnam J. Semnani
wiley   +1 more source

A method to determine strength parameters by triaxial testing and 3D rock failure models

Journal of Rock Mechanics and Geotechnical Engineering
Estimating the strength parameters of a chosen rock failure criterion is crucial for rational stability analyses. However, the grid search algorithm applied to true triaxial test data presents challenges that hinder its widespread adoption.
Pengfei He, Zhigang Tao, Xulong Yao, Manchao He, Mostafa Sharifzadeh   +4 more
doaj   +1 more source

Analysis of the Charge Structure and Lightning Activity During a Severe Beijing Thunderstorm via an Innovative Balloon‐Borne 3D Electric Field Observation System

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract We developed an innovative balloon‐borne observation system based on China's BeiDou sounding platform that integrates a three‐axis electric field sensor for in‐cloud measurements of thunderstorm electrification. On 13 May 2025, this system was deployed during a severe convective storm over Beijing. In combination with multisource observations,
Ye Tian, Wenbin Gao, Chenyi Shi, Yue Sun, Xuebo Fan, Lei Meng, YongTao Yu, LongBin Zhang, Chen Chang, Jiachun Yang, Jin Li   +10 more
wiley   +1 more source

Development and validation of three-way rigid true triaxial apparatus for soils

Yantu gongcheng xuebao
The intermediate principal stresses have a significant effect on the stress-strain behavior of soils. To describe the stress-strain behavior of soils more accurately, it is necessary to carry out true triaxial tests in the field of soil mechanics.
SHAO Shengjun 1, 2, WANG Zechi 1, SHAO Shuai 1, WU Hao 1, ZHANG Shaoying 1
doaj   +1 more source

Experimental Study on Mechanical and Damage Evolution Characteristics of Coal during True Triaxial Cyclic Loading and Unloading. [PDF]

Materials (Basel), 2023
Jiang C, Wang L, Ding K, Wang S, Ren B, Guo J.   +5 more
europepmc   +1 more source

Gas pressure evolution characteristics of deep true triaxial coal and gas outburst based on acoustic emission monitoring. [PDF]

Sci Rep, 2022
Zhang X, Tang J, Yu H, Pan Y.
europepmc   +1 more source

Failure and deformation characteristics of shale subject to true triaxial stress loading and unloading under water retention and seepage. [PDF]

R Soc Open Sci, 2022
Li S, Wang C, Zhang D, Yu B, Ren K.
europepmc   +1 more source

Research on the True Triaxial Mechanical Properties of Concrete under the Coupling Action of High Temperature and Biaxial Unequal Lateral Pressure. [PDF]

Materials (Basel), 2022
Ren B, Wang T, Xu J, Wang Z, Lv Y, Ning Y.   +5 more
europepmc   +1 more source

Wave Dissipation and Energy-Absorption Characteristics of Wave-Absorbing Metal Plates with Different Aperture Sizes and Thicknesses under True-Triaxial Static-Dynamic-Coupling Loading. [PDF]

Materials (Basel), 2022
Huang L, Wu X, Zeng S, Li X.
europepmc   +1 more source