Results 11 to 20 of about 309,183 (313)

Random periodic processes, periodic measures and ergodicity

open access: yesJournal of Differential Equations, 2020
38 ...
Feng, Chunrong, Zhao, Huaizhong
openaire   +3 more sources

The contact process on periodic trees

open access: yesElectronic Communications in Probability, 2020
A little over 25 years ago Pemantle pioneered the study of the contact process on trees, and showed that on homogeneous trees the critical values $λ_1$ and $λ_2$ for global and local survival were different. He also considered trees with periodic degree sequences, and Galton-Watson trees.
Huang, Xiangying, Durrett, Rick
openaire   +4 more sources

On computing the zeros of periodic systems [PDF]

open access: yes, 2002
We present an effcient and numerically reliable approach to compute the zeros of a periodic system. The zeros are defined in terms of the transfer-function matrix corresponding to an equivalent lifted statespace representation as constant system.
Dooren, P. Van   +6 more
core   +1 more source

Effect of periodic high-frequency vibration with rigid spheres added on high solids enzymatic hydrolysis of steam-exploded corn straw [PDF]

open access: yes, 2020
The periodic low-frequency force can improve mixing efficiency and reduce water constraint, thus intensifying the high solids enzymatic hydrolysis. However, the availability of intensification methods for the periodic force with different frequencies ...
Wang, Lan   +2 more
core   +1 more source

Periodic and quasiperiodic control processes in the biocommunity species composition preserving problem

open access: yesTransactions of the Karelian Research Centre of the Russian Academy of Sciences, 2015
The dynamical model describing several stages of interaction between populations of predators and preys in some area is proposed. The transition from one stage to another is determined by the values of the function which has the sense of trophical ...
Alexandra Ivanova, Alexander Kirillov
doaj   +1 more source

Cyclostationary Processes With Evolving Periods and Amplitudes [PDF]

open access: yesIEEE Transactions on Signal Processing, 2021
Wide-sense cyclostationary processes are an important class of non-stationary processes that have a periodic structure in their first- and second-order moments. This article extends the notion of cyclostationarity (in the wide sense) to processes where the mean and covariance functions might depart from strict periodicities and constant amplitudes ...
Soumya Das, Marc G. Genton
openaire   +2 more sources

A numerical evaluation of solvers for the periodic Riccati differential equation [PDF]

open access: yes, 2009
Efficient and accurate structure exploiting numerical methods for solving the periodic Riccati differential equation (PRDE) are addressed. Such methods are essential, for example, to design periodic feedback controllers for periodic control systems ...
Andras Varga   +14 more
core   +1 more source

Switched Linear Model Predictive Controllers for Periodic Exogenous Signals [PDF]

open access: yes, 2010
This paper develops linear switched controllers for periodic exogenous signals using the framework of a continuous-time model predictive control. In this framework, the control signal is generated by an algorithm that uses receding horizon control ...
Owens, D H   +6 more
core   +1 more source

Pendugaan Fungsi Intensitas Proses Poisson Periodik dengan Tren Fungsi Pangkat Menggunakan Metode Tipe Kernel

open access: yesComTech, 2011
Stochastic process has an important role in many areas in everyday life, including the customer service process. The number of customers who come to a service center will be different for each particular time.
Ro’fah Nur Rachmawati
doaj   +1 more source

Periodic moving average process [PDF]

open access: yes, 1985
summary:Periodic moving average processes are representatives of the class of periodic models suitable for the description of some seasonal time series and for the construction of multivariate moving average models.
Cipra, Tomáš
core   +1 more source

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