Results 141 to 150 of about 73,711 (304)
Seasonal Time Series and Autocorrelation Function Estimation [PDF]
Time series are demeaned when sample autocorrelation functions are computed. By the same logic it would seem appealing to remove seasonal means from seasonal time series before computing sample autocorrelation functions. Yet, standard practice is only to
William R. Bell +2 more
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The Anatomical Record, EarlyView.Abstract Dental microwear texture analysis (DMTA) has become a well‐established method for dietary inference and reconstruction in both extant and extinct mammals and other tetrapods. As the volume of available data continues to grow, researchers could benefit from combining published data from various studies to perform meta‐analyses.
Daniela E. Winkler, Mugino O. Kubo
wiley +1 more source
The Anatomical Record, EarlyView.Abstract In a large sample of adult crab‐eating macaques, we quantified sexual dimorphism in size, shape, and covariance across the whole skull and among anatomical regions of the cranium and mandible. All regions showed significant mean sex differences, but the magnitude of size and shape dimorphism varied substantially.
Andrea Cardini, Paul O'Higgins
wiley +1 more source
Blind SNR estimation for OFDM signals in cognitive radio
Tongxin xuebao, 2011 The traditional blind SNR estimation algorithms had problems of poor performance and high computation complexity for OFDM systems in cognitive radio with low signal to noise ratio(SNR)and multi-path channel conditions,in view of which a novel blind SNR ...
Ming-qian LIU +3 more
doaj
Partial autocorrelation function for spatial processes
Partial autocorrelation function (PACF) of a stationary two-dimensional separable process is defined. Properties of the sample partial autocorrelation function are derived, and the use of the sample PACF in identifying the orders of a spatial ...
Pantula, Sastry G. +2 more
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Arthritis &Rheumatology, EarlyView.Objective The purpose of this study was to estimate the prevalence of difficult‐to‐manage (D2M) and treatment‐refractory (TR) axial spondyloarthritis (axSpA) and to identify factors associated with D2M and TR disease in a longitudinal cohort. Methods We performed a cross‐sectional analysis on data from the Schroeder Arthritis Institute Spondylitis ...
Patricia Remalante‐Rayco +8 more
wiley +1 more source
Normalized field autocorrelation function-based optical coherence tomography three-dimensional angiography. [PDF]
J Biomed Opt, 2019 Tang J, Erdener SE, Sunil S, Boas DA.
europepmc +1 more source
Biofuels, Bioproducts and Biorefining, EarlyView.Abstract This study investigates the relationship between artificial intelligence (AI) development and biofuel production using a balanced panel dataset of 12 European Union (EU) countries over the 2008–2024 period. Employing feasible generalized least squares (FGLS) estimation with distributed lag specifications, the analysis controls for Renewable ...
Tufan Sarıtaş +3 more
wiley +1 more source
British Educational Research Journal, EarlyView.Abstract Character education research is often constrained by blunt methodological tools. Surveys capture breadth without depth; case studies offer richness but lack replicability; and randomised controlled trials (RCTs), though indispensable at the policy level, are costly, disruptive and ill‐suited to everyday practice with individual pupils.
Shane McLoughlin
wiley +1 more source
Asymmetric Autocorrelation Function To Resolve Directional Ambiguity In PIV Images [PDF]
, 1998 Autocorrelation of a double-exposed image, unlike cross-correlation between two images, produces a correlation function that ...
D P Hart, Y M Marzouk
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