Results 101 to 110 of about 310,448 (300)

Quality assessment of daily GNSS coordinate time series from the SoftBank proprietary reference network

Earth, Planets and Space
In recent years, earth science disciplines have begun to rely heavily on geospatial data to determine crustal deformation associated with earthquakes and volcanic activity. Therefore, having adequately high-resolution data is essential. In this study, we
Yusaku Ohta, Miku Ohtate
doaj   +1 more source

Assessment of directional accuracy of GNSS-Acoustic measurement using a slackly moored buoy

Progress in Earth and Planetary Science, 2019
We assessed the positioning accuracy of GNSS-Acoustic (GNSS-A) measurement using a slackly moored buoy. A key feature of real-time buoy-based GNSS-A measurement is that positioning must be performed via single ranging from an arbitrary observation ...
Misae Imano, Motoyuki Kido, Chie Honsho, Yusaku Ohta, Narumi Takahashi, Tatsuya Fukuda, Hiroshi Ochi, Ryota Hino   +7 more
doaj   +1 more source

Nonsilting transport characteristics of coal slurry in a deep underground fluidization conveying pipeline under the action of a guide vane swirler

Deep Underground Science and Engineering, EarlyView.
Aiming at the scientific frontiers of in situ fluidized mining of deep resources, a deep coal fluidized pipeline lifting system based on hydraulic conveying has been proposed. To solve the issue of particle sedimentation of large particles in horizontal connection sections, a solution involving the installation of guide vane‐type swirlers in the ...
Jiusheng Bao, Shaodi Zhao, Yan Yin, Zhongbin Wang, Shuai Liu, Shirong Ge   +5 more
wiley   +1 more source

Stress field in northeastern Japan and its relationship with faults of recent earthquakes

Earth, Planets and Space
Inversion tectonics, in which old normal faults act as reverse faults in current stress fields, are frequently observed in northeastern Japan (Tohoku District); however, the conditions that control these fault activities remain unclear.
Ayaka Tagami, Miu Matsuno, Tomomi Okada, Shin’ichi Sakai, Mako Ohzono, Kei Katsumata, Masahiro Kosuga, Yoshiko Yamanaka, Hiroshi Katao, Takeshi Matsushima, Hiroshi Yakiwara, Satoshi Hirahara, Toshio Kono, Shu’ichiro Hori, Toru Matsuzawa, Shuutoku Kimura, Takashi Nakayama, Group for the aftershock observations of the 2011 off the Pacific coast of Tohoku Earthquake   +17 more
doaj   +1 more source

Tectonic Inversion of the SCS from 3-D Magnetization Vector Clustering: Evidence for Differential Rotation and Ridge Jump

Applied Sciences
The eastern and southwestern sub-basins of the South China Sea (SCS) display starkly contrasting magnetic lineation patterns, yet quantitative 3-D mapping of the subsurface magnetic architecture—essential for deciphering basin evolution—remains ...
Juechang Wan, Shuling Li, Zhe Ji
doaj   +1 more source

Cell-automaton energy model of the earthquake focus

Геофизический журнал, 2011
The energy one-dimensional cellular automaton model of a seismic source is offered which represents modification of model of seismicity. The outcomes of numerical calculations are adduced and the comparison of obtained relations to physical model ...
V. E. Kulchytskyi
doaj   +1 more source

Numerical investigation on the influence of mesoscopic deformation on contact area and hydraulic aperture to fracture seepage

Deep Underground Science and Engineering, EarlyView.
Fluid flow through a single fracture is commonly described by the cubic law. However, deviations from this model are expected because natural fracture surfaces are rough and in contact with each other in discrete regions. In this study, the interactions between fracture closure, contact area, and hydraulic characterization of mesoscopic‐scale rough ...
Chenghao Han, Yuanlin Bai, Weijie Zhang, Jicheng Zhang, Hongfa Ma, Weiye Li   +5 more
wiley   +1 more source

Forecasting earthquakes^, [PDF]

Geophysical Journal International, 1946
It was twelve minutes after five in San Francisco on the fateful morning of April 18, 1906. Most of the city’s inhabitants were still in bed when the earthquake struck and the Great San Francisco Fire was started. Why was the public not warned of the coming catastrophe?
openaire   +1 more source

Real‐time monitoring of tunnel structures using digital twin and artificial intelligence: A short overview

Deep Underground Science and Engineering, EarlyView.
How artificial intelligence (AI) and digital twin (DT) technologies are revolutionizing tunnel surveillance, offering proactive maintenance strategies and enhanced safety protocols. It explores AI's analytical power and DT's virtual replicas of infrastructure, emphasizing their role in optimizing maintenance and safety in tunnel management.
Mohammad Afrazi, Danial Jahed Armaghani, Hossein Afrazi, Hadi Fattahi, Pijush Samui   +4 more
wiley   +1 more source

Fine slab structure and mechanism of deep earthquakes beneath central Japan

Communications Earth & Environment
Deep-focus earthquakes (> 300 km depth) are widely distributed in global subduction zones, but their mechanism is still debated because the fine structure of deep subducting slabs is unclear.
Xinxin Zhang, Guoming Jiang, Dapeng Zhao, Guibin Zhang   +3 more
doaj   +1 more source