Results 21 to 30 of about 11,177,426 (256)
Modeling of Non-Stationary Processes When Cutting Hard-to-Process Materials [PDF]
EPJ Web of Conferences, 2021 In the conditions of high-speed processing of parts of complex configuration, with a large end and longitudinal length, from hard-to-work steels and alloys, it is difficult to ensure the wear resistance of the cutting tool in the aisles of one ...
Grigoriev Sergey +2 more
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Gaussian Semiparametric Estimation of Non-stationary Time Series [PDF]
, 1998 Generalizing the definition of the memory parameter d in terms of the differentiated series, we showed in Velasco (Non-stationary log-periodogram regression, Forthcoming J.
Velasco Gómez, Carlos, Velasco, Carlos
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On the uniqueness of ARCH processes
Lietuvos Matematikos Rinkinys, 2007 In this note we prove the uniqueness of the solution to ARCH equations under conditions, which are weaker than in some earlier results.
Vytautas Kazakevičius +1 more
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CHARACTERISTICS OF AN ALGORITM FOR NON-STATIONARY POISSON PROCESS ESTIMATION [PDF]
Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2012 The properties of the algorithm estimates of parameter of harmonic intensity for nonstationary Poisson process. The computational stability of the algorithm is proved.
G.M. Vodinchar
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A Note on Estimation for the First Order Autoregressive Process [PDF]
The Egyptian Statistical Journal, 1987 The asymptotic estimation of the parameters of the first order stationary autoregressive process with zero mean is investigated. The exact and the asymptotic Bayes esti- mates of the weight and the error variance parameters are derived for different ...
A.M. Abouammoh, A.A. Abd-Alla
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Experimental determinations of the aerodynamic drag for vehicles subjected to the ground effect [PDF]
INCAS Bulletin, 2012 A moving vehicle creates a flow of the surrounding air, continuous and compressible fluid. When the movement is at a constant speed, the air flow is not time dependent and the flow distribution lines are constant.
Bogdan TARUS, Ioan SEBESAN
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Road pavement longitudinal evenness quantification as stationary stochastic process
Transport, 2019 One of the requirements concerning pavement quality is the evenness of its surface. Pavement unevenness has a random character and has an adverse influence to rolling resistance, tyre–pavement coherence, safety and the driving comfort.
Bohuš Leitner +2 more
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Simulation of non-stationary event flow with a nested stationary component
Discrete and Continuous Models and Applied Computational Science, 2020 A method for constructing an ensemble of time series trajectories with a nonstationary flow of events and a non-stationary empirical distribution of the values of the observed random variable is described.
Ruslan V. Pleshakov
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Stationarity of spot freight rates considering supply/demand effect
Journal of Shipping and Trade, 2020 The mean-reverting nature of freight rates is one of the important subjects in maritime economics. The classic understanding of maritime economics (and that of the shipping industry) suggests that freight rate processes are mean-reverting and approach ...
Koichiro Hayashi
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On spectral bandwidth of a stationary random process [PDF]
, 1983 summary:The irregularity coefficient is one of the numerical characteristics of the spectral bandwith of a stationary random process. Its basic properties are investigated and the application to the dichotomic classification of a process into narrow-band
Klega, Vladimír
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