Structural health monitoring of historical structures typically involves collecting continuous vibration data with very low signal-to-noise ratios (SNR). Fourier-based standard spectral analysis techniques are not appropriate to analyze such data, because low SNR can cause large errors in spectral analysis, particularly when they involve spectral ratios. This is particularly true for historical...

In this paper we study the effects of the prefilter on the jitter of a data synchronizer. We will see the prefilter as the parameter that can influence the curve of the output jitter versus input noise. We will show as the prefilter is beneficial for low signal to noise ratios (SNR) and prejudicial for high SNR. For low noise quantities the synchronizer operates in the linear mode but the incre...

Word familiarity effects on lexical decision times and recognition scores were investigated for two sets of 100 spoken Japanese words whose familiarity ratings ranged from middle (4.0) to high (7.0) taken from a recently-developed word familiarity database containing about 80,000 Japanese words. The results showed that the higher the word familiarity rating is, the shorter the reaction time is,...