Results 81 to 90 of about 17,377,111 (284)

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Modelled ambient hydrogen sulfide concentration isopleths from pipeline cleanout during typical meteorological conditions with wind speeds greater than 8.9 miles/hour for all wind directions

1 map : grayscale1 of 6 maps in the Puna Geothermal map setScale 1:12,000The maps shows the Kilauea East Rift ...
Puna Geothermal Venture
core   +3 more sources

Performance assessment of a potential underground thermal storage facility: Case study of the closed mine Prosper‐Haniel in the Ruhr coal mining area in Germany

Deep Underground Science and Engineering, EarlyView.
This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley   +1 more source

Modelled ambient hydrogen sulfide concentration isopleths from vertical well venting from Wellpad E during typical meteorological conditions with wind speeds greater than 8.9 miles/hour for all wind directions

1 map : grayscale1 of 6 maps in the Puna Geothermal map setScale 1:12,000The maps shows the Kilauea East Rift ...
Puna Geothermal Venture
core   +3 more sources

3D Visualization of Geothermal Features

, 2005
In this study, 3D visualization of temperature distribution in the Kizildere geothermal system and low resistvity distribution in Salavatli geothermal system were built using 3D interpolation and extrapolation techniques.
Serpen, U, Kaya, Eylem, Aksoy, N
core  

Thermal‐induced fracture evolution and acoustic signature of Beishan granite: Insights into tensile strength of barrier system for high‐level radioactive waste disposal

Deep Underground Science and Engineering, EarlyView.
The tensile strength of granite, a proposed host for nuclear waste, degrades severely above 400°C. We link this to specific microcracking patterns captured by acoustic emission, establishing a scientific basis for assessing repository safety under thermal load.
Wei Zeng, Shijie Li, Xiaozhao Li, Zhen Huang, Shangtong Yang, Wentao Xu, Biao Wang, Yun Wu   +7 more
wiley   +1 more source

External factors driving surface temperature changes above geothermal systems: answers from deep learning

Frontiers in Earth Science
Introduction: The surface expression of enhanced geothermal heat fluxes above an active hydrothermal system causes a surface thermal anomaly (ΔT). The thermal anomaly is expressed by the difference between the temperature within the heated zone (Th) and ...
Michail Giannoulis, Sophie Pailot-Bonnétat, Vincent Barra, Andrew Harris   +3 more
doaj   +1 more source

Advances in vital‐sign prediction and early‐warning models for underground coal mine workers integrating environmental factors

Deep Underground Science and Engineering, EarlyView.
This review synthesizes advances in predicting miners' vital signs by integrating environmental monitoring (dust, temperature, and gas) with physiological data. It highlights multi‐source data fusion techniques and early‐warning models for enhanced occupational safety in underground coal mines.
Junji Zhu, Dawei Cui, Yingjie Liu, Yuntao Liang, Yue Zhang   +4 more
wiley   +1 more source

Carbon emission assessment of tunnel infrastructures: From construction to operation

Deep Underground Science and Engineering, EarlyView.
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long, Wout Broere, Xuehui Zhang, Tian Xia, Richard de Nijs   +4 more
wiley   +1 more source

Assessment of the Exploitation Potential of High-Temperature Geothermal Resources in the First Deep Heat Storage of Yangbajing

Applied Sciences
Well spacing and reinjection rate are two critical parameters controlling the efficiency and sustainability of hot dry rock geothermal development. Taking the Yangbajing geothermal field in Tibet as the geological setting, permeability experiments were ...
Tengyu Tian, Zijun Feng, Hong Gou, Qi Gao   +3 more
doaj   +1 more source