Results 21 to 30 of about 133,608 (290)
Demographic Research, 2020 Background: Grandparents play a vital role in providing childcare to families. However, little is known about when grandmothers and grandfathers look after grandchildren, what they do with them, and why.
Giorgio Di Gessa +2 more
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Periodicity Detection of the Substitution Box in the CBC Mode of Operation: Experiment and Study
IEEE Access, 2023 This paper presents a technique for investigating the cyclic properties of substitution boxes (S-boxes) in the Cipher Block Chaining (CBC) mode of operation.
Zhanna Alimzhanova +2 more
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Inductance Characteristic Analysis of Consequent-Pole Permanent Magnet In-Wheel Motor
IEEE Access, 2019 This paper presents inductance characteristics analysis of the consequent-pole permanent magnet in-wheel motor (CPM). Considering the specialty of consequent-pole structure, this paper analyzes the change rule of the winding self-inductance via ...
Hui Ma +3 more
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Information and Computation, 2010 The paper is the full version of the authors' conference paper [Lect. Notes Comput. Sci. 6506, 25--36 (2010; Zbl 1310.68264)]. In the paper, the authors propose an algorithm to determine the approximate period of a string using Hamming and swap distances.
Amihood Amir +2 more
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The fine structure of the rotational periods of the solar mean magnetic field
Open Astronomy, 2021 The data of mean magnetic field (MMF) of the Sun obtained at the Wilcox Solar Observatory (Stanford, USA) in 1975–2020 are analysed. It was concluded that the MMF maximum occurs, on average, 1.5–2 years later relative to the maximum of Wolf numbers.
Haneychuk Vasily Ivanovich +1 more
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Frontiers in Neuroscience, 2020 This study presents a computational model to reproduce the biological dynamics of “listening to music.” A biologically plausible model of periodicity pitch detection is proposed and simulated.
Frank Klefenz +3 more
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High-speed rail network and periodic timetable: a comparative analysis of operational concepts
Acta Polytechnica CTU Proceedings, 2021 This paper compares chosen European high-speed railway (HS) networks in terms of their offer of HS passenger service. The criteria chosen for comparison are network topology, degree of service periodicity and degree of coordination between subsequent ...
Michal Drábek +2 more
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PERIODIC ENVIRONMENTS AND PERIODIC HARVESTING
Natural Resource Modeling, 2003 ABSTRACT. We consider autonomous population models under periodic harvesting and population models in periodic environments and seek conditions under which there is an asymptotically stable periodic solution.
Brauer, Fred, Sánchez, David A.
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The Form of the Solutions of System of Rational Difference Equation
Journal of Mathematical Sciences and Modelling, 2018 In this article, we study the form of the solutions of the system of difference equations $x_{n+1}=((y_{n-8})/(1+y_{n-2}x_{n-5}y_{n-8}))$, $y_{n+1}=((x_{n-8})/(\pm1\pm x_{n-2}y_{n-5}x_{n-8}))$, with the initial conditions are real numbers.
E. M. Elsayed, Marwa M. Alzubaidi
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Phylogenetic differences in content and intensity of periodic proteins [PDF]
, 2005 Many proteins exhibit sequence periodicity, often correlated with a visible structural periodicity. The statistical significance of such periodicity can be assessed by means of a chi-square-based test, with significance thresholds being calculated from ...
McEwan, N.R. +3 more
core +1 more source