Results 11 to 20 of about 556,483 (316)
Atmosphere, 2022 The evaporation duct is a particular type of atmospheric structure that always appears on the open ocean. Predicting the evaporation duct height (EDH) accurately and in a timely manner is of great significance for the practical application of marine ...
Qi Zhang, Xi Chen, Fuyu Yin, Fei Hong
doaj +1 more source
A Blockwise Empirical Likelihood Test for Gaussianity in Stationary Autoregressive Processes
Mathematics, 2023 A new and simple blockwise empirical likelihood moment-based procedure to test if a stationary autoregressive process is Gaussian has been proposed. The proposed test utilizes the skewness and kurtosis moment constraints to develop the test statistic ...
Chioneso S. Marange +3 more
doaj +1 more source
Seasonal Analysis for Globally Prices of Some Agricultural Commodity for the Purpose for Forecasting Using the SARIMA Model [PDF]
New Valley Journal of Agricultural Science, 2022 Prices are one of those main axes that have an impact on the movement of local and world markets, Therefore, the research aims to forecast the monthly future prices of oranges and soybeans in the world market, To achieve the aims of the research, it ...
Nasser Hammam
doaj +1 more source
The Stationary Bootstrap [PDF]
Journal of the American Statistical Association, 1994 Abstract This article introduces a resampling procedure called the stationary bootstrap as a means of calculating standard errors of estimators and constructing confidence regions for parameters based on weakly dependent stationary observations. Previously, a technique based on resampling blocks of consecutive observations was introduced to construct ...
Politis, Dimitris Nicolas +3 more
openaire +2 more sources
Quiescent Optical Solitons for the Concatenation Model with Nonlinear Chromatic Dispersion
Mathematics, 2023 This paper recovers quiescent optical solitons that are self-sustaining, localized wave packets that maintain their shape and amplitude over long distances due to a balance between nonlinearity and dispersion.
Yakup Yıldırım +3 more
doaj +1 more source
Information Theory for Non-Stationary Processes with Stationary Increments [PDF]
Entropy, 2019 We describe how to analyze the wide class of non-stationary processes with stationary centered increments using Shannon information theory. To do so, we use a practical viewpoint and define ersatz quantities from time-averaged probability distributions.
Granero-Belinchon, Carlos +2 more
openaire +4 more sources
A New Class of 2q-Point Nonstationary Subdivision Schemes and Their Applications
Mathematics, 2019 The main objective of this study is to introduce a new class of 2 q -point approximating nonstationary subdivision schemes (ANSSs) by applying Lagrange-like interpolant. The theory of asymptotic equivalence is applied to find the continuity of the
Abdul Ghaffar +5 more
doaj +1 more source
IEEE Access, 2021 The symmetric dielectric slab waveguide serves as an important canonical structure for the high-speed high-bandwidth optical and opto-electronic silicon-on-insulator interconnects.
Ata Zadehgol
doaj +1 more source
Non-stationary log-periodogram regression [PDF]
, 1998 We study asymptotic properties of the log-periodogram semiparametric estimate of the memory parameter d for non-stationary (d>=1/2) time series with Gaussian increments, extending the results of Robinson (1995) for stationary and invertible Gaussian ...
Velasco Gómez, Carlos +2 more
core +1 more source
Stationary relativistic jets [PDF]
Computational Astrophysics and Cosmology, 2015 AbstractIn this paper we describe a simple numerical approach which allows to study the structure of steady-state axisymmetric relativistic jets using one-dimensional time-dependent simulations. It is based on the fact that for narrow jets with $v_{z}\approx c$ v z
Komissarov, SS, Porth, O, Lyutikov, M
openaire +5 more sources