Results 81 to 90 of about 3,618 (152)

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

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

Strength characterization and uncertainty quantification for intact rock based on the true triaxial test

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
The strength property is essential to evaluate the yield and failure behavior of a rock mass in rock engineering. However, the traditional determinative strength criterion cannot account for uncertainty during the characterization of yield and failure ...
Bangxiang Li, Fakai Dou, Lin Zhang, Hongbo Zhao   +3 more
doaj   +1 more source

Temperature effect of rockburst in granite caverns: insights from reduced-scale model true-triaxial test

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
To investigate the influence of thermal treatment on the rockburst in granite caverns, true-triaxial compression tests were conducted on pre-heated granite cubic samples containing a circular through-hole using a true-triaxial test system, and the micro ...
Xuefeng Si, Yong Luo, Fengqiang Gong, Jiancheng Huang, Kaifeng Han   +4 more
doaj   +1 more source

Effects of Deviatoric Stress on Macro- and Meso-Mechanical Behavior of Granite for Water-Sealed Caverns Under True Triaxial Loading

Geosciences
Based on true triaxial loading experiments and particle flow numerical simulations (PFC3D), this study systematically analyzes the mechanical behavior and failure mechanisms of granite under the influence of stress difference (deviatoric stress).
Liliang Han, Yu Cong, Xiaoshan Wang, Wenyang Du, Lixia Zhang, Jian Gao, Yuming Wang, Zhanchao Zhang   +7 more
doaj   +1 more source

Study on strength criterion of progressive failure of structural loess under hydraulic action and true triaxial test. [PDF]

PLoS One
Fang J, Luo A, Chen C, Fu W, Zhao Z.
europepmc   +1 more source

The influence of stress path and flaw morphology on the failure mechanism and mechanical properties of rock masses. [PDF]

PLoS One
Wu N, Gan Y, Hu J, Sun R, Zeng H.
europepmc   +1 more source

Experimental study on mechanical response of soft soil freezing in underground excavation using artificial ground freezing method. [PDF]

PLoS One
Han L, Yi L, Zhang P, Chai L, Cheng Z.
europepmc   +1 more source

Mechanical response of high-porosity rocks under high triaxial confining pressure and experimental study of indentation tests. [PDF]

PLoS One
Gai J, Li W.
europepmc   +1 more source