Selvmord hos eldre

An analytical model for ELDRE

In the following we present a model for ELDRE, simpler than the one proposed in Chapter 4. The purpose is to get reasonable results starting from few physical parameters. References are quite detailed because the work is based on specific results found in the past. In Section 5.1 the main assumptions are explained and the mathematical model is presented. Following Sections investigate the time-...

The Enhanced Low Dose Rate Effect (ELDRE) 4.1 Discovering the ELDRE

4.1 Discovering the ELDRE In 1991 Enlow and coworkers made a comparative study between traditional crystalline emitter transistors (BJTs) and polysilicon emitter transistors (PETs) [1]. The work was intended to study the difference in radiation response of these technologies; indeed at this time large amounts of data were available for crystalline transistors, while very little attention had be...

Sjukdomar och dödsorsaker hos kameldjur i Sverige

Hos-based Variable Step Volterra Filter

In this paper, we are to develop a second-order LMS-type Volterra filter to reduce distortions of data transmission over analog telephone channels due the channel impulse response and inter-symbol interference (ISI). A novel approach for updating the linear and quadratic coefficients vectors of a second-order Volterra filter is presented. The innovative features of this algorithm provide distin...

Adaptive filtering using Higher Order Statistics (HOS)

The performed job, in this study, consists in studying adaptive filters and higher order statistics (HOS) to ameliorate their performances, by extension of linear case to non linear filters via Volterra series. This study is, principally, axed on:  Choice of the adaptation step and convergence conditions.  Convergence rate.  Adaptive variation of the convergence factor, according to the inpu...