Results 211 to 220 of about 24,984 (265)

Experimental and smoothed particle hydrodynamics‐finite element method simulation investigation of synergistic erosion mechanism of gangue‐based abrasive water jets

Deep Underground Science and Engineering, EarlyView.
This study proposes an eco‐friendly coal permeability enhancement technique by utilizing mine waste gangue as an abrasive in high‐pressure water jets. Integrating erosion experiments with smoothed particle hydrodynamics‐finite element method coupled simulations, the research study elucidates the flow field dynamics and a nonlinear solid–liquid ...
Qingxiang Wang, Jiaxu Tang, Qiheng Ren, Ding Wang, Tong Wang   +4 more
wiley   +1 more source

Mechanism of “seesaw‐type” rock burst in coal seam mining beneath mountainous areas

Deep Underground Science and Engineering, EarlyView.
This study reveals the mechanism of “seesaw‐type” rock bursts during coal mining beneath mountainous areas. The advancing working face induces nonuniform fracturing of the overburden. The detached mountain mass then undergoes a seesaw‐type rotational movement around a shifting pivot, driving the primary fracture through a characteristic “open‐close ...
Chao Zhou, Xueqiu He, Zhenlei Li, Ping Wang, Dazhao Song, Fuxing Jiang, Shan Yin, Anliang Lü, Menghan Wei, Taoping Zhong   +9 more
wiley   +1 more source

Modeling and monitoring injectivity evolution during cold CO2 injection with field evidence from aquistore carbon capture and storage operations

Deep Underground Science and Engineering, EarlyView.
This work integrates 5 years of field data from the Aquistore CCS project with a non‐isothermal THM modeling framework to explain how cold CO2 injection alters injectivity over time. The study shows that sustained cooling near the wellbore reduces effective stresses, promotes tensile micro‑cracking, and leads to semi‑reversible permeability enhancement
Alireza Rangriz Shokri, Stephen Talman, Erik Nickel, Rick Chalaturnyk   +3 more
wiley   +1 more source

Recent Advances in Pickering Emulsion Templated Phase Change Material Microcapsules: Design, Fabrication, and Multifunctional Applications

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Fabrication process of phase change microcapsules using a Pickering emulsion template method and their subsequent applications. The increasing demand for efficient thermal energy storage systems has driven the development of phase change material microcapsules (PCMMs), which provide high energy‐storage density, reversible phase change, and reduced ...
Ziyan Li, Jinsheng Sun, Kaihe Lv, Chaozheng Liu, Meichun Li   +4 more
wiley   +1 more source

Ultrafast ultrasound shear wave elastography: a novel approach for assessing myocardial stiffening in congenital aortic stenosis. [PDF]

Open Heart
Zwaan RR, Keuning ZA, Loff Barreto B, Bowen DJ, van Dalen BM, Hirsch A, Roos-Hesselink JW, Vos HJ, van den Bosch AE.   +8 more
europepmc   +1 more source

Relationship between the stiffness of the medial gastrocnemius and spatiotemporal variables during 100-m sprint running in collegiate sprinters. [PDF]

PLoS One
Fujii N, Takahashi K, Kawama R, Wakahara T.   +3 more
europepmc   +1 more source

Correction for Ajourlou et al., Upper mantle temperatures illuminate the Iceland hotspot track and understanding of ice-Earth interactions in Greenland. [PDF]

Proc Natl Acad Sci U S A
europepmc   +1 more source

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Velocities of compressional and shear waves in limestones

Geophysical Prospecting, 2003
Carbonate rocks are important hydrocarbon reservoir rocks with complex textures and petrophysical properties (porosity and permeability) mainly resulting from various diagenetic processes (compaction, dissolution, precipitation, cementation, etc.). These complexities make prediction of reservoir characteristics (e.g.
Assefa, S., McCann, C., Sothcott, J.
openaire   +3 more sources

Shear‐wave velocity estimation

SEG Technical Program Expanded Abstracts 1993, 1993
Shear-wave velocity estimation from principally porosity, clay content and compressional velocity has been widely studied by different authors for different core samples. When comparing the results of the velocity estimated with those laws and the velocity measured on core or with sonic logs and seismic data, discrepancies are often seen.
F. Lefeuvre, P. Desegaulx, M. L. Baratin
openaire   +1 more source

Surface Wave Inversion for Shear Wave Velocity

1991
Land based seismic exploration has typically viewed the surface wave or ground roll as undesirable noise while earthquake seismology has been able to use the surface wave to invert for lateral variations in crust-upper mantle shear-wave velocity. Although surface-wave inversion techniques for shear-wave velocity and shear-wave Q are easy to apply once ...
R. B. Herrmann, G. I. Al-Eqabi
openaire   +1 more source