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) spectrometry analysis was as follows: 3.6524% Cu, 2.5450% Ni, 39.5300% Fe, 26.1787% S, 6.2071% Si, and 2.3080% Mg (mass fraction). No concentrate was used in the XRF or X-ray diffraction (XRD, Rigaku, D/Max-2550... shows the mapping image of Ni, which represents pentlandite, the only nickel ore containing Fe, S, and Ni. The green area shows the mapping image of Cu, which represents chalcopyrite, the only copper......
sampling windows (Oexp), scan lines (Oline) and borehole camera (Odri) 3) fm means the method sets of the 3-D fracture network dynamic simulation; fgeo means the fracture shape expression methods; fsf means...; (15) where f is the spherical deviation; N is the number of traces in one set; li, ni, mi are the ith components of normal vector of fracture disc. If f<0.25, the dispersity......
. Obviously, under each confining pressure, the numerical curves are in good agreement with experimental ones. Notice that the experimental curves show a slightly hackly shape before peak stress, which......
band gap, phase/crystal structure, particle size, shape, surface area, surface defects and the presence of bound molecules on the surface [32,41]. The photocatalytic activity of ZnO, ZnO/ZnS and ZnO......
. aeruginosa. Due to smaller size and different shape of carbon nanotubes, the nanoparticles can cause increases in cell membrane permeability leading to osmotic collapse and algae growth inhibition [19]. DI et......
Sample preparation Sandstone was used as experimental material throughout this study, which was collected from Zigong city, Sichuan province, China. The rock cores were prepared in a cylindrical shape......
can have significant implications, especially for support design [2]. Therefore, numerical simulation of damage zone characteristics such as location, shape, depth and extension angle is vital......
]. Beijing: Beijing Jiaotong University. School of Civil Engineering, 2011: 139-147. [39] CRISS E M, CRISS R E, OSBURN G R. Effects of stress on cave passage shape in karst terranes[J]. Rock Mechanics......
of the rib parameters, e.g., shape, arrangement configuration, spacing, and height. However, use of the surface ribs will surely increase the pressure loss. It is hence of great interest to optimize... one curve. However, it is obvious that in the duct presents a clear S-shape trend with the increase of τ+. In the whole range of the dimensionless relaxation time, falls into three typical regimes, i.e.......
), dimensionless parameters (C02/σt2 or C01/σt1) of soil mass are larger. 2) When the failure surface of the soil above the anchor plate represents a shape of symmetric funnel, the nonlinear strength parameters......
