Analytical solutions of precise equations that describe the rf-coupling of two cavities through a co-axial cylindrical hole are given for various limited cases. For their derivation we have used the method of solution of an infinite set of linear algebraic equations, based on its transformation into dual integral equations.

Computational science faces new challenges posed by multiphysics and multiscale, or more generally put, coupled models. These systems are composites formed from separate subsystem models that interact via data exchanges. These data dependencies pose a coupling problem, and on distributed-memory computers, a parallel coupling problem. This paper presents a definition of terms and a set of organi...

A kind of integrated motor propulsor (IMP) which can be used in underwater propulsion is designed in this paper, and the rotor of its propelling motor employs the Halbach structure. This paper considers the characteristics of IMP, and coupling model of the motor is established. Time-stepping finite element method is used to analyze the field-circuit coupling problem, and research in the aspect ...

in this research, the coupling between non-gray radiation and separation convection flow in a duct is investigated numerically. distributions of absorption coefficients across the spectrum  are obtained from the hitran2008 database. the full-spectrum k-distribution method is used to deal with the non-gray part of the problem, while the gray radiation calculations are performed using the planck ...

in this paper, an enhanced computational code was developed using finite-volume method for solving the incompressible natural convection flow within the cylindrical cavities. grids were generated by an easy method with a view to computer program providing. an explicit integration algorithm was applied to find the steady state condition. also instead of the conventional algorithms of simple, sim...

The buried hetero-structure (BH) InGaAsP-InP waveguide is used for asystem of double microring resonators (DMR). The light transmission and location ofresonant peaks are determined for six different sets of ring radii with different ordermode numbers. The effect of changing middle coupling coefficient on the box likeresponse is studied. It is found that the surge of coupling coefficient to the ...

In this work, we develop methods to reduce interconnect delay and noise caused by coupling. First, we introduce a novel problem that deals with coupling the Coupling-Free Routing (CFR) Problem. CFR takes a set of nets and tries to nd a one-bend routing for a subset of nets. A routed net must not couple with any other routed net. We argue that this problem is useful in both global and detailed r...

We establish the unique solvability of a coupling problem for entire functions which arises in inverse spectral theory for singular second order ordinary differential equations/two-dimensional first order systems and is also of relevance for the integration of certain nonlinear wave equations. Results Let σ be a discrete set of nonzero reals such that the sum ∑

We present the Dressed Skeleton Expansion (DSE) as a method of perturbative calculation in quantum field theories, without the scale ambiguity problem. We illustrate the application of the DSE method to the two-particle elastic scattering amplitude in 4: theory, and compare this method with the usual perturbative expansion, combined with scale setting prescriptions. Submitted to Physics Letters...