Results 121 to 130 of about 9,629,822 (348)
Discover GeoscienceThe petrographic attributes of rocks as effective indicators of physicomechanical properties have always interested researchers. In this paper, a new general classification of petrographic attributes was presented.
Sasan Ghorbani
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Textural and minerochemical features of NWA 1807 and 2180, two new CV3 chondrites from northwest Africa [PDF]
, 2007 A textural and minerochemical study has been performed on NWA 1807 and 2180 chondrites in order to determine sizes and typologies of chondrules, relative abundances of mineral phases, compositions of main phases and bulk oxygen isotope ...
Franchi, I. A. +4 more
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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 +4 more
wiley +1 more source
, 2016 This paper reports the mineralogical compositions of super-low-sulfur (Yueliangtian 6-upper (YLT6U)) and high-sulfur (Yueliangtian 6-lower (YLT6L)) coals of the Late Permian No.
Panpan Xie +3 more
semanticscholar +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
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Mineralogical characteristics of surface sediment in Sulaibikhat Bay, Kuwait
Kuwait Journal of Science, 2013 Surface sediment samples were collected from 35 locations in Sulaibikhat Bay, Kuwait. Grain sizes, total organic carbon (TOC), carbonate and mineralogical data were determined.
HASSAN ALSHEMMARI +3 more
doaj
Indonesian Journal of Earth SciencesThis study addresses sediment dynamics within the fluvial system of the middle Kasai Basin, specifically between Ilebo town (pk605) and the confluence with the Loange River (pk525).
Lowny Trésor Madienga Kitshabi +7 more
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Guide to the nature and methods of analysis of the clay fraction of tephras from the South Auckland region, New Zealand. [PDF]
, 1983 The manual outlines some of the more common laboratory procedures available for qualitatively and quantitatively analysing the composition of the tephric clays, many of which are difficult to determine because of their short range order or 'amorphous ...
Lowe, David J., Nelson, Campbell S.
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Review and prospects of shear test of bolted rock joints
Deep Underground Science and Engineering, EarlyView.The laboratory shear test equipment, test method, and numerical simulation of bolted rock joints were summarized. The shortcomings and limitations of the current research were analyzed, and the research prospects were proposed. Abstract Rock bolting is a critical approach in geotechnical engineering for supporting weak rocks.
Shulin Ren +4 more
wiley +1 more source
Литосфера, 2019 Research subject. In this article, we present the results of comparative mineralogical and geochemical studies of organic remains and coprolites from the Lower Triassic and Paleogene continental deposits of the Northern Urals and East Kazakhstan.Methods.
V. I. Silaev +6 more
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