Biomedical subjects

Chil-Min Kim

Publications and source records attributed to Chil-Min Kim.

20 records · Page 2Linked to original sources

PubMed2002

Experimental observation of the characteristic relations of type-I intermittency in the presence of noise.

Recently, it has been reported that the characteristic relation of type-I intermittency in the presence of noise is deformed nontrivially as the channel width epsilon changes from the positive region to the negative. In order to verify it experimentally as a real phenomenon, we study the characteristic relations both for epsilon<0 and for epsilon>0 in a simple inductor-resistor-diode circuit that is under noisy circumstances. The experimental results agree well with the theoretical expectation that the characteristic relations are proportional to epsilon(-1/4) for epsilon>0 and proportional to exp(alpha/epsilon/(3/2)) for epsilon<0.

Journal Article↗

PubMed2001

Sequential synchronization of chaotic systems with an application to communication.

We propose a hierarchically structured communication system by using sequentially synchronized chaotic systems. Sequential synchronization is attained by first feeding a noiselike signal to a variable of the first transmitter and its receiver simultaneously and then feeding a variable of the first transmitter and its receiver to a variable of the second transmitter and its receiver, respectively, for subsequent feedings of variables in sequence. When this is applied to communication, the hierarchical structure enables selective protection of information due to the sequential property. We illustrate this in sequentially synchronized Navier-Stokes and Lorenz equations.

Journal Article↗