نتایج جستجو برای: dominant frequency
تعداد نتایج: 606846 فیلتر نتایج به سال:
The speed of the ankle jerk and physiological finger tremor in patients with thyrotoxicosis and myxoedema have been compared with those in age-matched control subjects. Tremor amplitude depends on the speed of muscle contraction; the faster muscle contracts the greater is the amplitude of tremor, and vice versa. The frequency of the dominant tremor peak is not affected by the speed of contracti...
The most dominant source in audio is usually perceived as melody. The estimation of it’s fundamental frequency can be treated as melody estimation. The task become difficult when the polyphony of the audio is high. To determine the most dominant source in human perception, perceptual properties have to be accounted. In this algorithm, we applied psychoacoustic property to the data to estimate t...
The hand-tool coupling force in the operation of a vibrating tool is generally composed of applied force (AF) and biodynamic force (BF). There is wide interest in quantifying the coupling force. The objectives of this study are to develop an effective method for estimating the BF and to investigate its fundamental characteristics. Using the biodynamic response of the hand-arm system, such as ap...
INTRODUCTION AND OBJECTIVES Although electro- physiological databases contain information about changes in the time domain in lesions produced by radiofrequency ablation, very few data on changes in the frequency domain are available. The aim of this study was to investigate changes in the spectral characteristics of ventricular fibrillation in zones with radiofrequency lesions. METHODS Recor...
Abstmct The paper preknts a novel AI-ANN neural network global on-line fault detection, pa& tern classification, and relaying detection acheme for synchronous generators in interconnected electric utility networks. The input discriminant vector comprises the dominant FFT frequency spectra of eighteen input variables forming the discriminant diagnostic hyperplane. The on-line ANN based relaying ...
BACKGROUND The relative contribution of mutations in the presenilin (PSEN) and amyloid precursor protein genes to autosomal dominant and other early-onset Alzheimer disease (AD) cases is not well established. OBJECTIVES To clarify the respective contribution of the amyloid precursor protein and PSEN mutations to autosomal dominant AD and to determine its contribution to sporadic and familial ...
OBJECTIVE To describe low-frequency sensorineural hearing loss (LFSNHL) inherited as a dominant trait in 3 families and in 1 sporadic case. DESIGN Longitudinal clinical study from 1968 to 2001. SETTING Tertiary care hospital; field studies conducted by molecular genetic research laboratory. PARTICIPANTS Dominant LFSNHL families. INTERVENTIONS Questionnaires, serial audiograms, and inter...
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