Results 21 to 30 of about 51,374 (258)

Comparison of MOLLI and ShMOLLI in Terms of T1 Reactivity and the Relationship between T1 Reactivity and Conventional Signs of Response during Adenosine Stress Perfusion CMR

Balkan Medical Journal, 2020
Background: One of the most important techniques of cardiac magnetic resonance in assessment of coronary heart diseases is adenosine stress myocardial first-pass perfusion imaging.
Esin Gezmiş, Charles Peebles, Andrew Flett, Ausami Abbas, Stephen Harden, James Shambrook   +5 more
doaj   +1 more source

Local Stress Field Correction Method Based on a Genetic Algorithm and a BP Neural Network for In Situ Stress Field Inversion

Advances in Civil Engineering, 2021
The in situ stress field is the fundamental factor causing deformation and damage in geotechnical engineering, so it is the main basis for underground engineering design and excavation.
Tianzhi Yao, Zuguo Mo, Li Qian, Jianhua He, Jianhai Zhang   +4 more
doaj   +1 more source

Evidence for Basement Reactivation during the Opening of the Labrador Sea from the Makkovik Province, Labrador, Canada: Insights from Field Data and Numerical Models

Geosciences, 2018
The onshore exposures adjacent to modern, offshore passive continental margins may preserve evidence of deformation from the pre-, syn-, and post-rift phases of continental breakup that allow us to investigate the processes associated with and ...
Alexander L. Peace, Edward D. Dempsey, Christian Schiffer, J. Kim Welford, Ken J. W. McCaffrey, Jonathan Imber, Jordan J. J. Phethean   +6 more
doaj   +1 more source

Study on induced stress of hydraulic fracturing in fractured‐porous elastic media

Energy Science & Engineering, 2020
The study on induced stress of hydraulic fracturing is an important part of hydraulic fracturing design, temporary plugging and steering fracturing design, and completion design in oil and gas development.
Yongquan Hu, Qiang Wang, Jinzhou Zhao, Shengnan Chen, Guiyi Zhang, Sukai Wang, Zhiyong Wang, Chenghao Fu   +7 more
doaj   +1 more source

Stress inversion based on microseismic monitoring and its engineering application

Yantu gongcheng xuebao, 2021
Determining the stress field environment of rock mass in engineering is the basis of disaster monitoring, disaster warning and its application. A joint iterative inversion method is used to retrieve the stress field based on the focal mechanism.
TANG Chao , LI Shu-lin , ZHOU Meng-jing , LIU Yin-chi
doaj   +1 more source

On the Inversion of Subsurface Residual Stresses from Surface Stress Measurements

Journal of the Mechanics and Physics of Solids, 1994
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ballard, Patrick, Constantinescu, Andrei
openaire   +3 more sources

Inverse Analysis Related to Stress Separation in Thermoelastic Stress Analysis.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A, 1996
This paper deals with stress separation in thermoelastic stress analysis. The problem of stress separation can be divided into two : (1) an inverse problem to estimate the unknown boundary values from the sum of the principal stresses inside the body, and (2) a direct problem to compute the stress components inside the body based on the estimated ...
Kikuo KISHIMOTO, Hirotsugu INOUE, Hideo SHINBO, Toshikazu SHIBUYA   +3 more
openaire   +3 more sources

Three-dimensional approach to understanding the relationship between the Plio–Quaternary stress field and tectonic inversion in the Triassic Cuyo Basin, Argentina [PDF]

Solid Earth, 2015
The Cacheuta sub-basin of the Triassic Cuyo Basin is an example of rift basin inversion contemporaneous to the advance of the Andean thrust front, during the Plio–Quaternary. This basin is one of the most important sedimentary basins in
L. Giambiagi, S. Spagnotto, S. M. Moreiras, G. Gómez, E. Stahlschmidt, J. Mescua   +5 more
doaj   +1 more source

Moment tensor and stress inversion solutions of acoustic emissions during compression and tensile fracturing in crystalline rocks

Journal of Rock Mechanics and Geotechnical Engineering, 2023
We investigate the accuracy and robustness of moment tensor (MT) and stress inversion solutions derived from acoustic emissions (AEs) during the laboratory fracturing of prismatic Barre granite specimens.
Zihua Niu, Bing Qiuyi Li, Omid Moradian
doaj   +1 more source

Stress-field evolution during the 26 November 2019 Durrës (Albania) earthquake sequence: Co-seismic, early post-seismic, and tectonic-region inversions [PDF]

EPJ Web of Conferences
We resolve the stress field associated with the 26 November 2019 Mw 6.3 Durrës earthquake sequence through three windows: the co-seismic mainshock, the early post-seismic phase (mainshock plus the 36 largest aftershocks recorded between 26 November and 2
Dushi Edmond, Rama Besian, Koxhaj Damiano   +2 more
doaj   +1 more source