Results 41 to 50 of about 868,049 (299)

Hydrogeological and geotechnical rock property characterization from geophysics [PDF]

open access: yes, 1998
Boreholes drilled at Sellafield penetrated a variety of rock units. Core samples and wireline logs indicate that rock mass properties and in situ fluid properties vary from one unit to another, but that properties are relatively uniform for each unit ...
Brereton, N.R., Evans, C.J., Kingdon, A.
core   +1 more source

Rock Mass Quality Evaluation Based on Unascertained Measure and Intuitionistic Fuzzy Sets

open access: yesComplexity, 2020
Evaluation of rock mass quality is of great significance to the design and construction of geotechnical engineering. In order to evaluate the quality of engineering rock mass scientifically and deal with the fuzzy information in the rock mass quality ...
Shuliang Wu, Xidong Du, Shan Yang
doaj   +1 more source

Rock Mass Erodibility

open access: yesJournal of Hydraulic Engineering, 2017
AbstractErosion of rock masses by water typically involves unraveling of blocks of rock along existing defects in a manner that is not represented by analytical solutions for sediment transport or ...
Pells, S   +4 more
openaire   +2 more sources

Geological constraints for a conceptual evolutionary model of the slope deformations affecting Mt. Nuovo at Ischia (Italy) [PDF]

open access: yes, 2015
ischia island was the scenario of several Holocene slope in- stability events occurred at different scales, from shallow mass movements, triggered by meteo-climatic forcing, up to massive rock slope failures such as large debris avalanches these last ...
DELLA SETA, Marta   +6 more
core   +1 more source

Rock mass quality classification based on fuzzy comprehensive evaluation and neural network

open access: yesYou-qi chuyun, 2022
Aiming at the problems of subjectivity and fuzziness in the traditional rock mass quality classification methods, a basic model of rock mass quality classification was established based on the fuzzy theory.
Shaodong JING   +3 more
doaj   +1 more source

Kepler-1656b: a Dense Sub-Saturn With an Extreme Eccentricity [PDF]

open access: yes, 2018
Kepler-1656b is a 5 $R_E$ planet with an orbital period of 32 days initially detected by the prime Kepler mission. We obtained precision radial velocities of Kepler-1656 with Keck/HIRES in order to confirm the planet and to characterize its mass and ...
Brady, Madison T.   +8 more
core   +2 more sources

Weightage Effect during Back-Calculation of Rock-Mass Quality from the Installed Tunnel Support in Rock-Mass Rating and Tunneling Quality Index System

open access: yesApplied Sciences, 2019
In extensively used empirical rock-mass classification systems, the rock-mass rating (RMR) and tunneling quality index (Q) system, rock-mass quality, and tunnel span are used for the selection of rock bolt length and spacing and shotcrete thickness.
Jonguk Kim   +4 more
doaj   +1 more source

NUMERICAL SIMULATION OF JOINTED ROCK MASS IN GEOMECHANICAL PROBLEMS [PDF]

open access: yes, 2018
Study the possibility of realistically numerical simulation of a jointed rock mass and estimate the design rock mass strength involving discontinuity surface conditions and various shapes and sizes of rock ...
BABETS, Dmytro   +9 more
core  

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

open access: yesMolecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson   +9 more
wiley   +1 more source

A brief introduction to disaster rock mass mechanics

open access: yesGeohazard Mechanics, 2023
Rock mass mechanics can be classified into engineering rock mass mechanics and disaster rock mass mechanics based on science and application. Their conception, object, scientific essence and application were elaborated.
Yangsheng Zhao, Zijun Feng
doaj   +1 more source

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