In this paper we present an overview for the development of a theory for analyzing and predicting the behavior if discrete event dynamic systems (DEDS). DEDS are dynamic systems in which state transitions are caused by internal, discrete events in the system. DEDS are attracting considerable interest, current applications are found in manufacturing systems, communications and air traffic system...

Ermr flow analysis is the study of how errors originate, spread, and propagate during progmm execution based on the three steps of the fault/failure model: execution, infection, and propagation[l6]. These three steps are defined relative to a virtual computer by judiciously selecting the instruction set and data state of this computer the need for infection analysis can be reduced or eliminated...

The c l in ica l usefulness of seven acoustic measures of cycle-to-cycle variations (perturbations) in the speech waveform was investigated. Three of these measures referred t o the frequency of occurrence and severeness of waveform perturbations i n special selected parts of the speech identified by means of the r a t e of change of the fundamental frequency. Three other measures referred t o ...

The main challenge in operating cognitive ad-hoc networks is the lack of a centralized controller performing resource allocation for different users in the network. In this chapter, a distributed power allocation scheme is considered for secondary users and its performance is analyzed when time average channel gains are substituted for instantaneous channel gains. In this way, it is not necessa...

the purpose of this study is to compare the results of different probabilistic methods such as the perturbation method, stochastic finite element method (sfem) and monte carlo method. these methods were used to study the convergence of direct approach for slope stability analysis and are developed for a linear soil behavior. in this study, two dimensional random fields are used and both the fir...

Perturbation analysis deals with the relation­ ships between small changes in a system's inputs or model and changes in its outputs. Reverse simulation is of particular interest, determining how to achieve desired outputs by perturbing inputs or model parameters. Some applications of this type of analysis are sug­ gested. Perturbation analysis is developed in the context of continuous systems w...

Coexistence The special case when all the independent solutions of a linear, T -periodic ODE are T -periodic. Hill’s equation A second order ODE of the form ẍ + p(t)x = 0, with p(t) T -periodic. Instability pockets Finite domains, usually intersections of instability tongues, where the trivial solution of linear, T -periodic ODEs is unstable. Instability tongues Domains in parameter space where...

This paper studies the Schatten-q error of low-rank matrix estimation by singular value decomposition under perturbation. We specifically establish a perturbation bound on via projection bound. Then, we lower bounds to justify tightness upper error. further develop user-friendly sin? for subspace based Finally, demonstrate advantage our results over ones in literature simulation.

‎ in this paper, we investigate stability analysis of fractional differential systems equipped with the conformable fractional derivatives. some stability conditions of fractional differential systems are proposed by applying the fractional exponential function and the fractional laplace transform. moreover, we check the stability of conformable fractional lotka-volterra system with the multi-st...