This paper concerns the reconstruction of the absorption and scattering parameters in a time-dependent linear transport equation from full knowledge of the albedo operator at the boundary of a bounded domain of interest. We present optimal stability results on the reconstruction of the absorption and scattering parameters for a given error in the measured albedo operator.

Eigenmode analysis is a fundamental method to characterize the interaction of beam and accelerator components. Several codes are able to calculate eigenmodes but all of them act on the complete structure which is under consideration. Thus they are restricted to a certain complexity of the resonator depending on the computational capabilities. We present a method that overcomes this restriction ...

Classifying power quality (PQ) disturbances is one of the most important issues for power quality control. A novel high-performance classification system based on the S-transform and a probabilistic neural network (PNN) is proposed. The original power quality signals are analysed by the S-transform and processed into a complex matrix named the S-matrix. Eighteen types of time–frequency features...

In this study an efficient approach is presented for the transient simulation of lossy, frequency-dependent multiconductor transmission lines. The method is based on the approximation of the modal scattering parameters of the system. Rational function approximation and recursive convolution are used to generate the time-domain stamps of the multiconductor system

In this paper we present a new measurement solution for the characterization of high frequency devices under large signal operating conditions. It is shown how a device-under-test (DUT) is put under large signal operating conditions and how one then measures the voltage and current waveforms at the signal ports in order to completely and accurately characterize the DUT behavior.

We present an updated survey of the known constructions and bounds for (t, m, s)nets as well as tables of upper and lower bounds on their parameters for various bases. c © 1999 John Wiley & Sons, Inc. J Combin Designs 7: 381–393, 1999

A recently carried out unitarity based analysis [1, 2] involving the evaluation of Jarlskog’s rephasing invariant parameter J as well as the evaluation of the angles α, β and γ of the unitarity triangle is extended to include the effects of K − K̄ as well as B − B̄ mixings. The present analysis attempts to evaluate CP violating phase δ, |Vtd| and the angles α, β and γ by invoking the constraints ...

The non-detection of pulsed sub-TeV γ-rays from EGRET pulsars proves that the EGRET pulsed spectra of all γ-ray pulsars should terminate at energies below a few hundred GeV. The spectrum of a typical integrated pulse profile predicted by the polar cap model resemble typically a hard component, followed by a super exponential cutoff between 1 MeV (PSR B1509-58) and tens of GeV (e.g. Crab, PSR B1...

There are many nonisomorphic orthogonal arrays with parameters OA(s3, s2 + s+1, s, 2) although the existence of the arrays yields many restrictions. We denote this by OA(3, s) for simplicity. V.D. Tonchev showed that for even the case of s = 3, there are at least 68 nonisomorphic orthogonal arrays. The arrays that are constructed by the n−dimensional finite spaces have parameters OA(s, (s − 1)/...

We study one-loop contributions to the fermion electric dipole moments in the Minimal Supersymmetric Standard Model with explicit R-parity violating interactions. We obtain new individual bounds on R-parity violating Yukawa couplings and put more stringent limits on certain parameters than those obtained previously. e-mail [email protected] e-mail [email protected] Introduction T...