Results 51 to 60 of about 271,026 (169)

On the eigenvalue problems for differential operators with coupled boundary conditions

open access: yesNonlinear Analysis, 2010
In the paper, the eigenvalue problems for one- and two-dimensional second order differential operators with nonlocal coupled boundary conditions are considered.
S. Sajavičius
doaj   +1 more source

Homogeneous difference schemes for the coupled problems of hydrodynamics and elasticity

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2019
Finite-difference approximations of elastic forces on the staggered moving grid were constructed. For the displacement vectors at the irregular grids in which topological and geometrical structures are subjected to minimal reasonable restrictions, with ...
I.P. Tsygvintsev   +5 more
doaj   +1 more source

Shuffled complex evolution coupled with stochastic ranking for reservoir scheduling problems

open access: yesWater Science and Engineering, 2019
This paper introduces an optimization method (SCE-SR) that combines shuffled complex evolution (SCE) and stochastic ranking (SR) to solve constrained reservoir scheduling problems, ranking individuals with both objectives and constrains considered.
Jing-qiao Mao   +5 more
doaj   +1 more source

An integrated coupled oscillator network to solve optimization problems

open access: yesCommunications Engineering
Solving combinatorial optimization problems is essential in scientific, technological, and engineering applications, but can be very time and energy-consuming using classical algorithms executed on digital processors.
Markus Graber, Klaus Hofmann
doaj   +1 more source

Numerical analysis of a caprock integrity during oil production by steam-assisted gravity drainage method

open access: yesFracture and Structural Integrity, 2019
The work is devoted to the investigation of a caprock integrity during oil production by steam-assisted gravity drainage method. An originally proposed thermo-hydro-mechanical model was used for the evaluation of mechanical loading acting on the over ...
Anastasiia Kostina   +2 more
doaj   +1 more source

Riemann problem for a particle–fluid coupling [PDF]

open access: yesMathematical Models and Methods in Applied Sciences, 2014
We present a model of coupling between a pointwise particle and a compressible inviscid fluid following the Euler equations. The interaction between the fluid and the particle is achieved through a drag force. It writes as the product of a discontinuous function and a Dirac measure.
openaire   +2 more sources

Results for Mild solution of fractional coupled hybrid boundary value problems

open access: yesOpen Mathematics, 2015
The study of coupled system of hybrid fractional differential equations (HFDEs) needs the attention of scientists for the exploration of its different important aspects.
Baleanu Dumitru   +3 more
doaj   +1 more source

Material point method simulation of hydro-mechanical behaviour in two-phase porous geomaterials: A state-of-the-art review

open access: yesJournal of Rock Mechanics and Geotechnical Engineering
The material point method (MPM) has been gaining increasing popularity as an appropriate approach to the solution of coupled hydro-mechanical problems involving large deformation.
Xiangcou Zheng   +3 more
doaj   +1 more source

Inequalities among Eigenvalues of Second-Order Symmetric Equations on Time Scales

open access: yesAdvances in Difference Equations, 2010
We consider coupled boundary value problems for second-order symmetric equations on time scales. Existence of eigenvalues of this boundary value problem is proved, numbers of their eigenvalues are calculated, and their relationships are obtained.
Chao Zhang, Shurong Sun
doaj   +1 more source

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