Results 11 to 20 of about 2,147,453 (288)

A quick screening approach for design of multi-principal element alloy with solid solution phase

Materials & Design, 2019
Multi-principal element alloys (MPEAs) have wide promising applications. However, the composition design of MPEAs is challenging due to their vast options and complexity.
Mingjie Zheng, Wenyi Ding, Weitao Cao, Shenyang Hu, Qunying Huang   +4 more
doaj   +3 more sources

Elastic–plastic criterion solution of deep roadway surrounding rock based on intermediate principal stress and Drucker–Prager criterion

Energy Science & Engineering
Excavation‐induced rock failure and deformation near an underground opening boundary is closely associated with the intermediate principal stress, strain softening and rock mass dilation.
Xinfeng Wang, Youyu Wei, Tian Jiang, Fuxu Hao, Haofu Xu   +4 more
doaj   +2 more sources

Conjugacy and principal solution of generalized half-linear second order differential equations

Electronic Journal of Qualitative Theory of Differential Equations, 2012
We study the generalized half-linear second order differential equation and the associated Riccati type differential equation. We introduce the concepts of minimal and principal solutions of these equations and using these concepts we prove a new ...
Ondrej Dosly, J. Reznickova
doaj   +1 more source

SOME PROPERTIES OF THE KERR SOLUTION TO LOW ENERGY STRING THEORY [PDF]

, 1995
The Kerr solution to axidilaton gravity is analyzed in the Debney--Kerr--Schild formalism. It is shown that the Kerr principal null congruence retains its property to be geodesic and shear free, however, the axidilatonic Kerr solution is not ...
A. Burinskii, A. Burinskii, A. Burinskii, A. Burinskii, A. Burinskii, A. Dabholkar, A. Sen, A. Sen, A. Sen, A. Shapere, A. Ya. Burinskii, B. Carter, C. A. López, C. W. Misner, D. Garfinkel, D. Ivanenko, D. Ivanenko, D. V. Gal'tsov, D. V. Gal'tsov, E. T. Whittacker, E. Witten, G. C. Debney, S. Hassan, W. Israel   +23 more
core   +2 more sources

Short-axis-mode rotation of a free rigid body by perturbation series [PDF]

, 2013
A simple rearrangement of the torque free motion Hamiltonian shapes it as a perturbation problem for bodies rotating close to the principal axis of maximum inertia, independently of their triaxiality.
Lara, Martin
core   +1 more source

Principal solution in Weyl-Titchmarsh theory for second order Sturm-Liouville equation on time scales

Electronic Journal of Qualitative Theory of Differential Equations, 2017
A connection between the oscillation theory and the Weyl-Titchmarsh theory for the second order Sturm-Liouville equation on time scales is established by using the principal solution.
Petr Zemanek
doaj   +1 more source

Spectral Discrimination of Macronutrient Deficiencies in Greenhouse Grown Flue-Cured Tobacco

Plants, 2023
Remote sensing of nutrient disorders has become more common in recent years. Most research has considered one or two nutrient disorders and few studies have sought to distinguish among multiple macronutrient deficiencies.
Josh Henry, Patrick Veazie, Marschall Furman, Matthew Vann, Brian Whipker   +4 more
doaj   +1 more source

Local estimates for modified Riccati equation in theory of half-linear differential equation

Electronic Journal of Qualitative Theory of Differential Equations, 2012
In this paper we study the half-linear differential equation \begin{equation*} \bigl(r(t)\Phi_p(x')\bigr)'+c(t)\Phi_p(x)=0, \end{equation*} where $\Phi_p(x)=|x|^{p-2}x$, $p>1$. Using modified Riccati technique and suitable local estimates for terms
Simona Fišnarová, Robert Marik
doaj   +1 more source

Simple approach for solution of the quasi-plane-strain problem in a circular tunnel in a strain-softening rock mass considering the out-of-plane stress effect

Underground Space, 2020
The out-of-plane stress is sometimes the major or intermediate principal stress in a circular tunnel opening. The influences of the out-of-plane stress and axial strain are often neglected in the stability analyses of tunnel excavation, which can induce ...
Jinfeng Zou, Lu Liu, Mingyao Xia
doaj   +1 more source

On the integral characterization of principal solutions for half-linear ODE

Electronic Journal of Qualitative Theory of Differential Equations, 2013
We discuss a new integral characterization of principal solutions for half-linear differential equations, introduced in the recent paper of S. Fisnarova and R. Marik, Nonlinear Anal. 74 (2011), 6427-6433.
M. Cecchi, Zuzana Dosla, Ondrej Dosly, Mauro Marini   +3 more
doaj   +1 more source