Results 31 to 40 of about 279,026 (300)
The effects of temperature on mechanical properties of rocks [PDF]
International Journal of Mining and Geo-Engineering, 2020 In a natural condition, temperature variations and phase transition of pore water are the two most effective factors on the mechanical properties of rocks.
Jabbar Ashrafi +4 more
doaj +1 more source
Linear thermal expansion of the building stone from plutonic massifs of the Vardar zone of Serbia [PDF]
Tehnika, 2020 Thermal properties of the building stone used for cladding and flooring, especially in exteriors, are significant for durability and lifespan of buildings' surfaces covered with it, but also their aesthetic properties in the sense of integrity.
Kurešević Lidja M. +2 more
doaj +1 more source
\u3ci\u3eSlaterobius Insignis\u3c/i\u3e (Heteroptera: Lygaeidae): Association With Granite Ledges and Outcrops in Minnesota [PDF]
, 2017 Adults and late-instar nymphs of the wide-ranging myrmecomorphic lygaeid Slaterobius insignis were collected in northern Minnesota from cracks of granite outcrops and ledges, a habitat differing somewhat from that reported elsewhere.
Wheeler, A. G, Jr.
core +2 more sources
The comparative analysis of two Pre-Roman Iron Age bog bodies from Northwest Germany using portable X-Ray Fluorescence Spectroscopy [PDF]
, 2014 Portable X-ray Fluorescence Spectroscopy (PXRFS) is a non-destructive testing method that can offer objective, on-site information concerning elemental composition.
Bauerochse, Andreas, Granite, Guinevere
core +3 more sources
Deep Underground Science and Engineering, EarlyView.In this work, we propose an improved particle swarm optimization (PSO) algorithm and develop an improved PSO‐relevance vector machine (RVM) model as a substitute for traditional true‐triaxial testing. The model's high prediction accuracy was validated through comparisons with two other machine learning methods and five three‐dimensional Hoek–Brown type
Qi Zhang +4 more
wiley +1 more source
A study of the space form of the Cornubian granite batholith and its application to detailed gravity surveys in Cornwall [PDF]
, 1977 A three-dimensional computer model of the Cornubian granite batholith, defined by polygonal contours, was created so that its calculated gravity field matched the observed Bouguer Anomaly field, both onshore and offshore. The model was used to define
Tombs, J.M.C.
core
Deep Underground Science and Engineering, EarlyView.Hydraulic fracturing in tight sandstone and fracture propagation characteristics using backscattered electron‐scanning electron microscope (BSE‐SEM) images. Abstract This study focuses on hydraulic fracturing experiments conducted under triaxial conditions on tight sandstone specimens from Shivpuri district, Madhya Pradesh, India.
Pankaj Rawat, Narendra Kumar Samadhiya
wiley +1 more source
A geochemical drainage survey of the Fleet granitic complex and its environs [PDF]
, 1978 A regional geochemical drainage reconnaissance programme was undertaken over 900 km2 of south-west Scotland centred on the Fleet granitic complex. Rocks of Ordovician and Silurian age outcrop over the area, into which have been intruded the Fleet and ...
Brown, M.J. +3 more
core
Creep properties and constitutive model of diabase in deep water conveyance tunnels
Deep Underground Science and Engineering, EarlyView.The axial and lateral creep characteristics of diabase were analyzed based on compression creep tests. The nonlinear viscoelastic‐plastic model capable of describing the whole creep process was established based on the fractional derivative and damage theories.
Zhigang Tao +5 more
wiley +1 more source
Технічна інженеріяThe state of the crushed stone market determines the release of the most liquid fractions, which quite often requires changes to the technological scheme of crushing and screening plants (CSP). Deviation from the working (main) technological scheme leads
O.M. Tolkach +3 more
doaj +1 more source