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In this paper, we derive sufficient conditions under which the single-input single-output fuzzy system is bounded by linear functions in its output. If the fuzzy system is constructed with the complete and consistent fuzzy sets with trapezoid membership functions, we show that the derived conditions are simply the constraints on the consequent part parameters. Then we prove that any continuously differentiable...
In the NIBP (Non-Invasive Blood Pressure) measurement, we need well trained observer and there are differences in reading values between observers. We suggest new automated auscultation algorithms to select the proper epoch of K-sound for each heart beat. The sound for each epoch is converted into frequency domain and total power was calculated. We decided SBP(Systolic Blood Pressure) point when there...
The heartbeat class detection of the electrocardiogram is important in cardiac disease diagnosis. For detecting morphological QRS complex, conventional detection algorithm have been designed to detect P, QRS, T wave. However, the detection of the P and T wave is difficult because their amplitudes are relatively low, and occasionally they are included in noise. We applied two morphological feature...
In non-invasive blood pressure (NIBP) measurement, most of the automatic devices use oscillometric method. There are two types of deflation in oscillometric method. One is the linear deflation and the other is the stepwise deflation method. In this study, we suggest the modified step deflation to reduce the measurement time while keeping the advantage of step deflation over linear deflation. With...
Traditional transformers using iron cores were widely used for measuring voltage and current for several decades. But with the introduction of new digital technologies, novel measuring techniques were begun to apply to the transformers. Novel types of current and voltage transformers do not adopt iron core, so these types were called as Non-Conventional Instrument Transformers (NCIT). The common characteristics...
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