Electrocardiogram is the recording of the electrical potential of heart versus time. The analysis of ECG signal has great importance in the detection of cardiac abnormalities. In this paper we have dealt about the removal of noises in ECG signals and arrhythmia classification of the signal.The inputs for our analysis is taken from MIT-BIH database (Massachusetts Institute of Technology Beth Isr...

Patients with liver cirrhosis have autonomic dysfunction and complex cardiovascular changes. Increases risk for sudden cardiac death (SCD) was recently recognized in liver cirrhosis. This study analyzed risk predictors for SCD related to autonomic dysfunction in patients with alcoholic liver cirrhosis (ALC). Twenty five patients with ALC were examined and compared with healthy control group. Ca...

In this work, in order to determination of effect a puzzle video game on HRV (Heart rate variability) signal, Poincare plot analysis is used. The linear and nonlinear dynamics were evaluated using recordings obtained from each player at the time play rest. For purpose, we have correlated Poincaré descriptors with standard measures derived time- frequency-domain methods. addition, correlations b...

in this paper, we prove that every metric line in the poincare ball model of hyperbolic geometry is exactly a classical line of itself. we also proved nonexistence of periodic lines in the poincare ball model of hyperbolic geometry.

Premature ventricular contractions (PVC) are premature heartbeats originating from the ventricles of the heart. These heart beats occur before the regular heartbeat. PVC in patients with heart diseases (heart attacks, heart failure, diseases of the heart valves) may be associated with increased risks of developing ventricular tachycardia. A technique of nonlinear analysis, the fractal analysis ...

In this paper, the nonlinear oscillations induced by friction in a ball-on-socket system are investigated. The time response was obtained solving differential equations of friction-noise model finite element ball with multiple modes. different patterns motion were analyzed via bifurcation diagram, Poincare map, and recurrence plot. Lyapunov exponents discontinuous distributed contact calculated...