Results 111 to 120 of about 475 (261)

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

open access: yesDeep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu   +4 more
wiley   +1 more source

Mechanism and disaster control new technology of strong ground pressure manifestation in ultra‐large mining face

open access: yesDeep Underground Science and Engineering, EarlyView.
In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu   +6 more
wiley   +1 more source

Altaic, so far

open access: yesMigracijske i etničke teme, 1999
This article consists of free parts. In the first one is a bibliographical survey of the most important literature that appeared in the fields of study of individual five Altaic language groups (Japanese, Korean, Manchu-Tungusic, Mongolic, and Turkic) as
Alexander Vovin
doaj  

Kazak mitochondrial genomes provide insights into the human population history of Central Eurasia. [PDF]

open access: yesPLoS One, 2022
Askapuli A   +16 more
europepmc   +1 more source

Fluid‐induced slip on a rate‐and‐state fault during co‐ and post‐injection: The interplay of fluid pressure diffusion and poroelastic stress

open access: yesDeep Underground Science and Engineering, EarlyView.
Fault slip can occur ahead of the injection pressure front due to poroelastic stress. Our model captures the interaction of pressure, stress, and friction, providing new insights into injection‐induced seismicity and post‐injection fault slip. Shut‐in operations can either mitigate or accelerate seismic events depending on fault conditions and ...
Qifeng Xie, Lei Wang, Qi Li
wiley   +1 more source

Some Details from Eurasian Ethnic History – Altaic Peoples, Chinese Sources and Turania

open access: yesMigracijske i etničke teme, 2000
In the first part of the paper, the author discusses some details pertaining to the Altaic languages and the location of the Altaic homeland. As to the key question of Altaic theory – i.e.
Emil Heršak
doaj  

Editorial: A Genetic Perspective on Asian Populations. [PDF]

open access: yesFront Genet, 2022
Kutanan W, Changmai P, Wang CC.
europepmc   +1 more source

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

open access: yesDeep 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   +4 more
wiley   +1 more source

A Note on Mongolism [PDF]

open access: yesProceedings of the Royal Society of Medicine, 1913
openaire   +2 more sources

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