Results 41 to 50 of about 105,870 (246)

Failure mechanism of the coal wall at the working face based on an eccentric compression mechanical model

Deep Underground Science and Engineering, EarlyView.
In this study, the nonuniform distribution of the bearing pressure in front of the coal wall has been revealed based on in situ monitoring data and numerical simulation results. Therefore, an eccentric compression mechanical model of the coal wall was established to study the deformation and failure characteristics of a coal wall. The slenderness ratio
Maolin Tian, Jiabao Wang, Changsheng Wang, Shijie Sun, Lijun Han, Qingbin Meng, Sunhao Zhang   +6 more
wiley   +1 more source

Hotspots, trends, and regional focus on oil or gas exploration: A bibliometric comparative study

Deep Underground Science and Engineering, EarlyView.
This paper explores the research trends in global oil and gas exploration through the bibliometric analysis of 3460 articles collected from the Web of Science database on oil and gas exploration published from 2013 to 2023. The research hotspots, objects, regional distribution, methods, and evaluation methods of oil and gas exploration are analyzed and
Jihong Wang, Zhongkai Li, Jianguo Wang, Zhiqiang Li   +3 more
wiley   +1 more source

A perspective review of applications of the computed tomography (CT) scan imaging technique for microscopic reservoir rock characterization

Deep Underground Science and Engineering, EarlyView.
In this review, the application of micro‐CT and medical‐CT scanning in the oil and gas industry has been thoroughly discussed. Recent improvements in DRP and modern imaging techniques in the oil and gas industry have been modeled using both experimental and simulation work.
Achinta Bera, Bharadwaj Shukla, Dhruvikkumar Jogani   +2 more
wiley   +1 more source

Corrosion effect of hydrochloric acid on the granite: Insights from electrical conductivity, mineral composition, and tensile behavior

Deep Underground Science and Engineering, EarlyView.
The evolution of electrical conductivity, mineral composition, and tensile behavior such as peak strength, average stiffness, and the energy evolution of the granite specimen under different HCl conditions are studied, analyzed as well as quantified, and investigated, respectively.
Yanan Gao, Yikang Cheng, Guanglei Cai, Yuan Gao, Jianwei Tian, Mingzhong Gao   +5 more
wiley   +1 more source

Workshop on the evolution of the Martian atmosphere [PDF]

Thirty-three papers based on the state of our knowledge prior to the anticipated new results from Mars Observer were presented at the workshop. Because of the nature of the subject, the scope of the papers covered a broad disciplinary range encompassing ...
Jakosky, B. M., Luhmann, J. G.
core   +1 more source

Neutrino tomography - Learning about the Earth's interior using the propagation of neutrinos

, 2006
Because the propagation of neutrinos is affected by the presence of Earth matter, it opens new possibilities to probe the Earth's interior. Different approaches range from techniques based upon the interaction of high energy (above TeV) neutrinos with ...
A. B. Borisov, A. B. Borisov, A. De Rujula, A. Nicolaidis, A. Nicolaidis, B. Jacobsson, C. Giunti, C. Kuo, C. Quigg, E. K. Akhmedov, G. Fogli, G. Masters, I. P. Nedyalkov, J. Ahrens, J. Bouchez, J. Burguet-Castell, L. Wolfenstein, M. Apollonio, M. Lindner, M. M. Reynoso, P. Huber, P. Jain, P. Zucchelli, R. J. Geller, S. Geer, S. M. Bilenky, S. P. Mikheev, S. P. Mikheev, S. T. Petcov, T. L. Wilson, T. Ohlsson, T. Ohlsson, T. Ohlsson, W. Winter, Walter Winter, Y. Fukuda, Y. Itow   +36 more
core   +1 more source

Understanding Physical Wave Diffraction in Applied Geophysics

Inżynieria Mineralna
The famous Huygens – Fresnel principle can explain diffraction phenomenon in nature in which physics waves scattering appears as soon as these waves hit small objects, edges, and inhomogeneous environments. For optical areas, laser light diffractions are represented as subsidiary and main maxima in single slit interference.
Nhi Nguyen Phuong Mai, Thanh Van Long Nguyen, Anh Huynh Tuan Nguyen, Thuan Van Nguyen, Cuong Van Anh Le   +4 more
openaire   +1 more source

Experimental study on dynamic behavior analysis of coal and its acoustic emission response characteristics under impact failure

Deep Underground Science and Engineering, EarlyView.
Based on acoustic emission response characteristics, it can be more accurate to identify the damage evolution process of coal under the combined dynamic and static loads, reveal the moment corresponding to coal damage, and identify the characteristics of coal failure. The research results are conducive to the further use of acoustic emission monitoring
Wei Zhang, Huijian Fu, Yingke Liu, Zhaoxi Long, Yang Liu, Tengrui Yang, Yanbo Sun, Mingjun Jiang, Xiaojiang Wen, Yue Niu, Ruixi Cheng   +10 more
wiley   +1 more source

Microscopic time‐dependent mechanical behavior of shale derived from nanoindentation

Deep Underground Science and Engineering, EarlyView.
This study conducted grid nanoindentation creep tests to systematically analyze the microscopic creep behaviors of shale. Based on the analysis of creep strain rate sensitivity, the primary mechanism of microscopic creep in shale was found to be the extension and closure of microcracks.
Cunbao Li, Shilei Zhong, Heping Xie, Changtai Zhou, Jianjun Hu   +4 more
wiley   +1 more source

Persistence and Quiescence of Seismicity on Fault Systems

, 1999
We study the statistics of simulated earthquakes in a quasistatic model of two parallel heterogeneous faults within a slowly driven elastic tectonic plate.
A. J. Crone, B. Derrida, D. Sornette, D. Sornette, D. Sornette, Didier Sornette, H.-J. Xu, J. P. Bouchaud, L. Knopoff, Leon Knopoff, Matthew W. Lee, P. Cowie, P. Miltenberger, S. Beanland, S. N. Majumdar, S. N. Majumdar, S. N. Majumdar, W. Horsthemke   +17 more
core   +1 more source