Results 41 to 50 of about 2,437,245 (292)

Mixed Mode Oscillation in FitzHugh-Rinzel Model

open access: yesپژوهش‌های ریاضی, 2021
FitzHugh-Nagumo-Rinzel model is an important model for the dynamics of single neuron. We observed some patterns of Bursting specially Mixed Mode Oscillation (MMO) in this model.
Mohammad Reza Razvan   +1 more
doaj  

Mixed mode oscillations of the El Niño-Southern Oscillation

open access: yes, 2015
Very strong El Niño events occur sporadically every 10-20 years. The origin of this bursting behavior still remains elusive. Using a simplified 3-dimensional dynamical model of the tropical Pacific climate system, which captures the El Niño-Southern Oscillation (ENSO) combined with recently developed mathematical tools for fast-slow systems we show ...
Roberts, Andrew   +4 more
openaire   +2 more sources

Calculation of normal mode spectra in laterally heterogeneous earth models using an iterative direct solution method, [PDF]

open access: yes
Normal mode observations play an important role in studying broad-scale lateral variations in the Earth. Such studies require the calculation of accurate synthetic spectra in realistic earth models, and this remains a computationally challenging problem.
Deuss, Arwen   +2 more
core   +1 more source

Design and Stability Analysis Techniques for Switching-Mode Nonlinear Circuits: Power Amplifiers and Oscillators [PDF]

open access: yes, 2006
A design technique for kW level switching mode power amplifiers is presented. Several push pull pairs, independently tuned to Class E/Fodd, are combined by a distributed active transformer.
Jeon, Sanggeun
core   +1 more source

Modes of oscillation in radiofrequency Paul traps [PDF]

open access: yesNew Journal of Physics, 2012
24 pages, 3 figures, v2 adds citations and small ...
Landa H.   +3 more
openaire   +4 more sources

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

Independently Tunable Concurrent Dual-Band VCO Using Square Open-Loop Resonator

open access: yesIEEE Access, 2018
A concurrent dual-band voltage-controlled oscillator (VCO) with independently tunable dual oscillation frequencies is proposed. A shared square open-loop dual-mode resonator and two varactor diodes are the basic units offering flexible tuning for the ...
Boqiong Li   +3 more
doaj   +1 more source

Arginine methylation as a regulatory ratchet in cancer: From substrate selection to malignant‐state stabilization

open access: yesMolecular Oncology, EarlyView.
Arginine methylation can be viewed as a persistence‐prone post‐translational modification regulated by a network of PRMTs. Competitive and compensatory interactions among PRMTs can redistribute methylation across substrate pools shaped by sequence, structural, spatial, and environmental layers, reinforcing RNA‐processing, chromatin, and signaling ...
So Hyun Kwon, Ji Min Lee
wiley   +1 more source

Temporal variations in English Populations of a forest insect pest, the green spruce aphid (Elatobium abietinum), associated with the North Atlantic Oscillation and global warming [PDF]

open access: yes, 2007
Based on an exceptionally long modern ecological dataset (41 years), it has been possible to show that warm weather in England associated with a positive North Atlantic Oscillation (NAO) index causes the spring migration of the green spruce aphid ...
Harrington, R.   +18 more
core   +1 more source

Complex Periodic Mixed-Mode Oscillation Patterns in a Filippov System

open access: yes, 2022
The main task of this article is to study the patterns of mixed-mode oscillations and non-smooth behaviors in a Filippov system with external excitation.
Qiaoxia Tang, Chun Zhang
core   +1 more source

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