Results 31 to 40 of about 524,744 (263)

On highly oscillatory problems arising in electronic engineering [PDF]

, 2003
In this paper, we consider linear ordinary differential equations originating in electronic engineering, which exhibit exceedingly rapid oscillation.
Deaño Cabrera, Alfredo, Roland Becker, Larson, Mats G, Hansbo, Anita,, Osses Alvarado, Axel, Kinderlehrer, David, Stenberg, Rolf, Puel, Jean-Pierre, Kowalczyk, Michal, Garcia, Galina, Stefano Berrone, Knobloch, Petr, Axel Osses, Michal Kowalczyk, García, Galina C., Hansbo, Peter F G, Hansbo, Peter, Lisini, Stefano, John, Volker, Puel, Jean Pierre, Barrenechea, Gabriel, Michał Kowalczyk, Gabriel R. Barrenechea, Petr Knobloch, Stenberg, Rolf,, Hansbo, Peter,, Kropielnicka, Karolina, Arieh Iserles, Carrillo, José Antonio, Rolf Stenberg, Larson, Mats, Anita Hansbo, Larson, Mats,, Berrone, Stefano, Osses, Axel, Hansbo, Peter F G,, Laurençot, Philippe, Karolina Kropielnicka, Volker John, Alfredo Deaño, Deaño, Alfredo, Jean Pierre Puel, Galina C. García, Kowalczyk, Michał, Carrillo, José, A., Philippe Laurençot, Larson, Mats G., Atulya K. Nagar, Barrenechea, Gabriel R., Adrien Blanchet, Stefano Lisini, Hansbo, Anita, Volker, John, Carrillo, José, Iserles, Arieh, Peter Hansbo, Becker, Roland,, Condon, Marissa, Becker, Roland, GIRI, ANKIK KUMAR, Ankik Kumar Giri, Nagar, Atulya K., Blanchet, Adrien, Marissa Condon, Mats G. Larson, David Kinderlehrer, José Antonio Carrillo   +66 more
core   +3 more sources

Necessary and sufficient conditions for oscillations of linear delay partial difference equations

Discrete Dynamics in Nature and Society, 1998
This paper is concerned with the linear delay partial difference equation Am,n=∑i=1upiAm−ki,n−li+∑j=1vqjAm+τj,n+σj, where pi and qj are r×r matrices, Am,n=(am,n1,am,n2, …,am,nr)T, ki, li , τj and σj are nonnegative integers, u and v are positive ...
B. G. Zhang, S. T. Liu
doaj   +1 more source

Simulation for formation process of atomic orbitals by the finite difference time domain method based on the eight-element Dirac equation

Open Physics, 2023
Using the finite difference time domain (FDTD) method based on the eight-element Dirac equation, we found that a stable Dirac field wave packet with low velocity can be created without explicit consideration of Zitterbewegung (the rapid oscillatory ...
Mutoh Hideki
doaj   +1 more source

Oscillatory glucose flux in INS 1 pancreatic beta cells: A self-referencing microbiosensor study [PDF]

, 2011
Signaling and insulin secretion in beta cells have been reported to demonstrate oscillatory modes, with abnormal oscillations associated with type 2 diabetes.
Claussen, Jonathan C., Rickus, Jenna, Jonathan C. Claussen, Mirmira, Raghavendra, Jaroch, David, Eric S. McLamore, McLamore, Eric, Jin Shi, D. Marshall Porterfield, Shi, Jin, David Jaroch, Jenna L. Rickus, Porterfield, D. Marshall, Raghavendra G. Mirmira   +13 more
core   +1 more source

Analysis of Functional Connectivity and Oscillatory Power Using DICS: From Raw MEG Data to Group-Level Statistics in Python

Frontiers in Neuroscience, 2018
Communication between brain regions is thought to be facilitated by the synchronization of oscillatory activity. Hence, large-scale functional networks within the brain may be estimated by measuring synchronicity between regions.
Marijn van Vliet, Mia Liljeström, Mia Liljeström, Susanna Aro, Riitta Salmelin, Jan Kujala   +5 more
doaj   +1 more source

The Impact of Small Time Delays on the Onset of Oscillations and Synchrony in Brain Networks

Frontiers in Systems Neuroscience, 2021
The human brain constitutes one of the most advanced networks produced by nature, consisting of billions of neurons communicating with each other. However, this communication is not in real-time, with different communication or time-delays occurring ...
Isam Al-Darabsah, Liang Chen, Wilten Nicola, Sue Ann Campbell   +3 more
doaj   +1 more source

Design of Multi-Loop Modal Control Systems for Plants Having Complex Eigenvalues

Measurement + Control, 1968
In this paper a design procedure is developed which makes it possible to alter both the real and imaginary parts of any number of pairs of conjugate complex plant eigenvalues: this procedure alters one pair of conjugate eigenvalues at a time by the ...
B. Porter MA, PhD, CEng, AMIMechE, J. D. Carter MSc   +1 more
doaj   +1 more source

Digital filter‐based grid synchronization for autonomous microgrids

IET Renewable Power Generation, 2021
Having a robust and accurate grid synchronization unit for distributed generators (DGs) has been accentuated due to rapidly growing integration of inverter‐based DGs to the autonomous microgrids.
Farhad Elyasichamazkoti, Farrokh Aminifar, Mahdi Davarpanah   +2 more
doaj   +1 more source

Transverse Vibration of Functionally Graded Tapered Double Nanobeams Resting on Elastic Foundation

Applied Sciences, 2020
The natural vibration behavior of axially functionally graded (AFG) double nanobeams is studied based on the Euler−Bernoulli beam and Eringen’s non-local elasticity theory.
Ma’en S. Sari, Wael G. Al-Kouz, Anas M. Atieh   +2 more
doaj   +1 more source

Parietal Alpha Oscillations: Cognitive Load and Mental Toughness

Brain Sciences, 2022
Cognitive effort is intrinsically linked to task difficulty, intelligence, and mental toughness. Intelligence reflects an individual’s cognitive aptitude, whereas mental toughness (MT) reflects an individual’s resilience in pursuing success.
Natalia Zhozhikashvili, Ilya Zakharov, Victoria Ismatullina, Inna Feklicheva, Sergey Malykh, Marie Arsalidou   +5 more
doaj   +1 more source