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At least 883 records · Page 49Linked to original sources
PubMed1982

Simulation of the variable compliance of living systems.

The purpose of this study was to differentiate between the terms generation and simulation which are normally used in the construction of electronic models of biological systems. A technique was adopted based on Miller's theorem to obtain time variable impedances and it was applied to the ventricular compliance simulation. In order to prove experimentally the proposed method, an electronic model of the cardiovascular system using half a heart was designed in which the ventricle is represented by a single time-varying compliance. The voltages which represent the atrial ventricular and aortic pressures and the ventricular volume are provided by the model as outputs.

Cardiovascular Physiological Phenomena↗
PubMed1993

Development of a software package for computer simulations: the use of a sorted event list for reduction of calculation times.

A new program for continuous simulation is described. The program is block oriented, simulating the function of an analogue computer. C structures containing pointers to the calculation of their input functions were used for the individual blocks. The actual calculation order was determined from a sorted event list. After calculation events were inserted at the appropriate place in this list again. This procedure allowed for a variable and independent stepsize for the main blocks and for the introduction of discrete events. With typical applications a speed increase of about 500% was attained.

Algorithms↗