منابع مشابه
Comparison of different methods of time shift measurement in EEG.
Digital signal processing techniques are often used for measurement of small time shifts between EEG signals. In our work we tested properties of linear cross-correlation and phase/coherence method. The last mentioned method was used in two versions. The first version used fast Fourier transform (FFT) algorithm and the second was based on autoregressive modeling with fixed or adaptive model ord...
متن کاملReview of Oral Saliva Measurement Standard Methods
Background and Aim: At present, there are various methods for performing diagnostic tests. Due to the fact that saliva is easily available compared to other body fluids, it can be collected from patients in a non-invasive way and there is no risk of cross-infection because of it, so its use has become more common. Also, the analysis of substances in saliva can be a reflection of a person's oral...
متن کاملComparing Time-Use Estimates of Two Different Time Diary Methods
Objectives: Time-use has become an important field of research in social and medical sciences. Time diary is the most popular method for measuring time-use that has 2 different methods of administration including yesterday and tomorrow diary. The present study aimed to compare these methods of measuring time-use. Methods: This cross-sectional comparative study was conducted on 256 under 5-yea...
متن کاملMETHODS OF MEASUREMENT Methods of Measurement in epidemiology: Sedentary Behaviour
British Heart Foundation National Centre for Physical Activity and Health, School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK, School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK, Department of Cardiovascular Sciences, University of Leicester, Leicester, UK, NIHR Leicester-Loughborough Diet, Lifestyle and Physical Activi...
متن کاملMethods of Emittance Measurement
We discuss experimental techniques for measurement of the density of beam particles in both the transverse and longitudinal phase space. The second moments of a two-dimensional density in conjugate coordinates are combined to form the emittance, which remains invariant under idealized beam transport. Four different methods of emittance measurement are presented, as will be implemented at the Br...
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ژورنال
عنوان ژورنال: Industrial and Labor Relations Review
سال: 1949
ISSN: 0019-7939
DOI: 10.2307/2519095