Results 121 to 130 of about 314,541 (295)

Preparing for Large Natural Catastrophes: The current state and challenges of earthquake insurance in Japan [PDF]

Global incidents of major natural catastrophes are becoming increasingly common in recent years. Seismological research has shown earthquake-prone Japan to be at particular risk from not only inland earthquakes, but also from repeat incidents of major ...
Kobayashi, Takeshi, Okada, Taishi, Yamori, Nobuyoshi   +2 more
core   +1 more source

EARTHQUAKE, CAUSES OF EARTHQUAKE

In this article, general information about earthquakes, their types, classification. Earthquake conditions above and below the ground are classified. The article is intended for the requirements of labor protection and technical safety directions, labor protection and safety specialists, and general readers.
openaire   +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

Earthquake Machine Lite: Activity 2 of 2 [PDF]

This activity continues and compliments the previous Earthquake Machine activity by pointing out the advantages and limitations of the Earthquake Machine model, explaining the causes of earthquakes and extending students' understanding about earthquake ...
Michael Hubenthal
core   +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

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

“Earthquakes and Buildings” [PDF]

Nature, 1884
PROF. JOHN MILNE, of Tokio, refers in an article under this heading (NATURE, vol. xxix. p. 290) to buildings in Caracas, which are low, slightly pyramidal, have flat roofs, and are bound along their faces with iron. Being for more than twenty years a resident of this city, I hope I may be credited with knowing something of its architecture, and as such
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

Study on fracture parameter calibration and failure characteristics of rock with hole and crack

Deep Underground Science and Engineering, EarlyView.
The SIF and plastic zone equations for a single hole and crack have been derived. The model's failure state leads to the identification of four types of cracks. The plastic zone increases with increased brittleness and decreased crack length. Abstract Cracks within the surrounding rock of roadways significantly affect their stability and failure ...
Shaochi Peng, Wensong Wang
wiley   +1 more source

Coseismic crustal seismic velocity changes associated with the 2024 MW 7.5 Noto earthquake, Japan

Earth, Planets and Space
The 2024 $$\hbox {M}_{\textrm{w}}$$ M w 7.5 Noto earthquake, Japan, was preceded by an intense seismic swarm thought to be driven by upward fluid migration.
Nicolas Paris, Yuji Itoh, Florent Brenguier, Qing-Yu Wang, Yixiao Sheng, Tomomi Okada, Naoki Uchida, Quentin Higueret, Ryota Takagi, Shin’ichi Sakai, Satoshi Hirahara, Shuutoku Kimura   +11 more
doaj   +1 more source