Results 71 to 80 of about 144,974 (202)
Rectangular Well as Perturbation [PDF]
, 1997 We discuss a finite rectangular well as a perturbation for the infinite one with a depth $\lambda^2$ of the former as a perturbation parameter. In particular we consider a behaviour of energy levels in the well as functions of complex $\lambda$.
Giller S. +3 more
core +2 more sources
Transient interference of transmission and incidence [PDF]
, 2000 Due to a transient quantum interference during a wavepacket collision with a potential barrier, a particular momentum, that depends on the potential parameters but is close to the initial average momentum, becomes suppressed.
A. H. Zewail +9 more
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Scattering by a semi-infinite lattice and the excitation of Bloch waves [PDF]
, 2013 The interaction of a time-harmonic plane wave with a semi-infinite lattice of identical circular cylinders is considered. No assumptions about the radius of the cylinders, or their scattering properties, are made. Multipole expansions and Graf’s addition
Thompson, I, Tymis, N
core +2 more sources
S-Matrix Poles Close to Thresholds in Confined Geometries
, 2007 We have studied the behavior of the S-matrix poles near threshold for quantum waveguides coupled to a cavity with a defect. We emphasize the occurrence of both dominant and shadow poles on the various sheets of the energy Riemann surface, and show that ...
Badalyan +12 more
core +2 more sources
Frontiers in Built Environment, 2020 Electric power distribution systems that link the bulk power grid (generation and transmission systems) to customers are the leading cause of power outages due to their vulnerability to extreme wind events, especially hurricanes. The strength of the wood
Abdullahi M. Salman +3 more
doaj +1 more source
Feedback methods for inverse simulation of dynamic models for engineering systems applications [PDF]
, 2011 Inverse simulation is a form of inverse modelling in which computer simulation methods are used to find the time histories of input variables that, for a given model, match a set of required output responses.
Anonymous +20 more
core +1 more source
Theoretical constraints in the design of multivariable control systems [PDF]
The theoretical constraints inherent in the design of multivariable control systems were defined and investigated. These constraints are manifested by the system transmission zeros that limit or bound the areas in which closed loop poles and individual ...
Mook, D. J., Rynaski, E. G.
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Modelling and validation of a simple and compact wide upper stop band ultra-wideband bandpass filter
The Journal of Engineering, 2014 A compact ultra-wideband (UWB) bandpass filter (BPF) is proposed based on end coupled microstrip transmission line, defected ground structure and defected microstrip structure.
Somdotta Roy Choudhury, Santanu Das
doaj +1 more source
Remarks on excited states of affine Toda solitons
, 1996 The identification in affine Toda field theory of the quantum particle with the lowest breather allows us to re-interpret discrete modes of excitation of solitons as breathers bound to solitons, and thus to investigate them through the proposed soliton ...
Braden +19 more
core +2 more sources
, 2005 The influence of Rashba spin-orbit coupling on zero conductance resonances appearing in one dimensional ring asymmetrically coupled to two leads is investigated.
E. I. Rashba +4 more
core +1 more source