Results 1 to 10 of about 1,261 (178)

Study on the size effect of the secant modulus of rocks containing multiple parallel joints

open access: yesFrontiers in Materials, 2022
The secant modulus of the rock reflects the stiffness of the rock and the ability to resist deformation. There are significant differences in the secant modulus of the rock due to the different numbers of joints in the rock and the change in rock size ...
Jing Zhang   +7 more
doaj   +4 more sources

Matching Standard and Secant Parallels in Cylindrical Projections

open access: yesISPRS International Journal of Geo-Information, 2023
Map projections are usually interpreted by mapping a sphere onto an auxiliary surface, and then the surface is developed into a plane. It is taken as a fact without proof that the parallels in which the auxiliary surface intersects the sphere are mapped ...
Miljenko Lapaine
doaj   +5 more sources

Standard Parallel and Secant Parallel in Azimuthal Projections

open access: yesKartografija i Geoinformacije, 2017
It is commonly assumed that standard parallels and parallels that appear as the intersections of a developable surface and a sphere or ellipsoid coincide.
Miljenko Lapaine
doaj   +1 more source

Local convergence of the multi-secant method for the parallel solution of systems of nonlinear equations

open access: yesApplied Mathematics Letters, 1988
A theorem on superlinear convergence is proven.
Guangye Li
exaly   +2 more sources

Ferrofluid lubrication of circular squeeze film bearings controlled by variable magnetic field with rotations of the discs, porosity and slip velocity [PDF]

open access: yesRoyal Society Open Science, 2017
Based on the Shliomis ferrofluid flow model (SFFM) and continuity equation for the film as well as porous region, modified Reynolds equation for lubrication of circular squeeze film bearings is derived by considering the effects of oblique radially ...
Rajesh C. Shah, Rajiv B. Shah
doaj   +1 more source

Equidistant, Standard and Secant Parallels

open access: yesKartografija i geoinformacije, 2020
The paper describes a study of equidistant, standard and secant parallels in normal aspect cylindrical and conical projections. First, the explanation of cylindrical and conical projections as projections on cylindrical or conical surfaces is not recommended because it leads to misunderstanding projection properties.
Miljenko Lapaine   +1 more
openaire   +4 more sources

Properties of the strain rate sensitivity function produced by the linear viscoelasticity theory and existence of its maximum with respect to strain and strain rate

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2020
Strain rate sensitivity of stress-strain curves family generated by the Boltzmann–Volterra linear viscoelasticity constitutive equation (with an arbitrary relaxation modulus) under uni-axial loadings at constant strain rates is studied analytically as ...
Andrew Vladimirovich Khokhlov
doaj   +1 more source

Scale effect of rockfill materials using super-large triaxial tests

open access: yesYantu gongcheng xuebao, 2019
A super-large triaxial apparatus and a common large triaxial apparatus are used to conduct triaxial tests on quarried rockfill materials with the maximum particle size dmax of 200 and 60 mm in parallel gradation. The study mainly focuses on the effect of
KONG Xian-jing 1, 2, NING Fan-wei 1, 2, LIU Jing-mao 1, 2, ZOU De-gao 1, 2, ZHOU Chen-guang 1, 2
doaj   +1 more source

Robustness Maximization of Parallel Multichannel Systems

open access: yesJournal of Electrical and Computer Engineering, 2012
Bit error rate (BER) minimization and SNR-gap maximization, two robustness optimization problems, are solved, under average power and bitrate constraints, according to the waterfilling policy.
Jean-Yves Baudais   +2 more
doaj   +1 more source

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