In the present paper a vertically integrated coastal zone numerical model has been described for the simulation of storm surges and associated coastal inundation in Bangladesh. The model is a generalization of the earlier study [3] in which the fixed side-wall lateral boundary condition along...

Our primary aim in this paper is to develop a new method for modeling waves on a digital computer. The approach will be a quasi-molecular, particle approach which lends itself readily to computer experiments. Explosive type disturbances will be simulated first which will generate compression...

This paper investigates numerical techniques for the solution of the system of nonlinear elliptic PDE's that simulates bipolar semiconductor devices under high reverse bias voltage. Bipolar devices are usually modeled as a set of three elliptic PDE's representing the field equation and the...

This paper deals with the application of a physically complete land–sea–air boundary layer model for the simulation of flow field and pollutant transport over the Athens basin. As a first approach, a two–dimensional simulation of the tidal air movements in Athens has been performed....

A method is presented of using a Markov process model to generate a random time series having similar characteristics, in terms of probability density and autocorrelation function, to a known series. As an extended example, it is shown how the Markov model was used to generate a time series of...

Hybrid computer programming automation research is giving rise to a renewed interest in standard hybrid programming configurations. The stability of implementations whereby only time integrations and first-order prediction compensation are performed in the analog section is examined as a...

A second order closure model for the atmospheric, two-dimensional, steady, turbulent flow in a zonal channel for the β-plane is developed, and the non-linear system of equations resulting from the model is solved using a standard iterative technique. An important feature of the model is that it...

Estimates of surface tension are generally based on the information provided by the surface contour of sessile and pendant drops. We have developped a new procedure for data reduction by taking advantage of the particular features of the mathematical model that describes the complex functional...

We ask if analog computers can solve NP-complete problems efficiently. Regarding this as unlikely, we formulate a strong version of Church's Thesis: that any analog computer can be simulated efficiently (in polynomial time) by a digital computer. From this assumption and the assumption that P...