Results 41 to 50 of about 1,158 (197)

Impact of 1024‐Matrix Size on Perforating Artery Visualisation in Cerebral Computed Tomography Angiography Using a 64‐Slice CT Scanner

Journal of Medical Radiation Sciences, EarlyView.
This study investigated whether using a larger image matrix (1024 × 1024 pixels instead of 512 × 512) improves the visibility of tiny brain arteries on CT scans performed with standard 64‐slice scanners. While physical image quality measurements remained unchanged, the larger matrix provided finer digital sampling of blood vessel structures, resulting ...
Hokuto Nagumo, Yuki Nagata, Mayumi Maruko, Jun Sakai, Yusuke Fujiwara, Joma Oikawa   +5 more
wiley   +1 more source

Traveling pulse solutions in a three-component Fitzhugh-Nagumo model

, 2021
We use geometric singular perturbation techniques combined with an action functional approach to study traveling pulse solutions in a three-component FitzHugh-Nagumo model.
Van Heijster, Peter, Teramoto, Takashi
core   +1 more source

Using novel simplified models of excitation for analytic description of initiation propagation and blockage of excitation waves [PDF]

, 2006
We consider applications of a recently suggested new asymptotic approach to detailed ionic models of cardiac excitation. First, we describe a three-variable approximation for the excitation fronts in a detailed ionic model of human atrial kinetics.
Simitev, R., Biktashev, V.N., Idris, I.
core  

The Influence of Audio Information Manipulation on the Perceived Atmosphere in Telepresence Systems for Remote Work

IEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
Remote work, which enables employees to work from home, has emerged as a prominent working style in recent years. However, unlike traditional office environments where the ‘atmosphere of the space’ is naturally shared, remote work relies on screen‐based communication, making it challenging to convey this atmosphere.
Ariyasu Ando, Yoshihiro Konagaya, Issei Hashimoto, Akihito Kobayashi, Kent Nagumo, Akio Nozawa   +5 more
wiley   +1 more source

On radially symmetric solutions of the Neumann boundary value problem for the p-Laplace equation

Учёные записки Казанского университета: Серия Физико-математические науки
The Neumann boundary value problem for the p-Laplace equation with a low order term that does not satisfy the Bernstein–Nagumo condition was studied. The solvability of the problem in the class of radially symmetric solutions was investigated. A class of
A. S. Tersenov, R. C. Safarov
doaj   +1 more source

A splitting method for SDEs with locally Lipschitz drift : illustration on the FitzHugh-Nagumo model [PDF]

, 2022
In this article, we construct and analyse an explicit numerical splitting method for a class of semi-linear stochastic differential equations (SDEs) with additive noise, where the drift is allowed to grow polynomially and satisfies a global one-sided ...
Buckwar, Evelyn, Tubikanec, Irene,, Samson, Adeline,, Tamborrino, Massimiliano, Tubikanec, Irene, Lund University., Buckwar, Evelyn,, Samson, Adeline, Tamborrino, Massimiliano,   +8 more
core   +1 more source

Fault‐Tolerant Fuzzy Boundary Control for Nonlinear Distributed Parameter Systems Under Limited Measurements and Markovian Failures

CAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT This paper proposes a boundary control method for nonlinear distributed parameter systems (DPSs) with limited boundary measurements (BMs), as typically encountered in networked cyber‐physical processes with spatially distributed dynamics such as thermal and biomedical diffusion systems.
Yanlin Li, Kaibo Shi, Yue Yu, Xiangkun Wang, Ming Zhu, Xiao Cai   +5 more
wiley   +1 more source

Boundary value problems for integro-differential and singular higher-order differential equations

Open Mathematics
We investigate third-order strongly nonlinear differential equations of the type (Φ(k(t)u″(t)))′=f(t,u(t),u′(t),u″(t)),a.e. on[0,T],\left(\Phi \left(k\left(t){u}^{^{\prime\prime} }\left(t)))^{\prime} =f\left(t,u\left(t),u^{\prime} \left(t),{u}^{^{\prime ...
Anceschi Francesca, Calamai Alessandro, Marcelli Cristina, Papalini Francesca   +3 more
doaj   +1 more source

Signal propagation and failure in one-dimensional FitzHugh-Nagumo equations with periodic stimuli [PDF]

, 2005
We analyze the effect of additive periodic stimuli in one-dimensional FitzHugh-Nagumo equations in an excitable regime. With a suitable stimulus interval, the suppression of the pulse propagation occurs in some parameter regime.
Nishiura, Yasumasa, Yanagita, T., Kobayashi, R.   +2 more
core   +1 more source

Unraveling authoritarian reform decision‐making: A metacognitive–subcognitive model

American Journal of Political Science, EarlyView.
Abstract Recent research indicates that state reforms in East and Southeast Asia have been predominantly top‐down and authoritarian‐led. However, this significant observation implicitly relies on important assumptions about authoritarian decision‐making behavior and psychology that remains understudied.
Eugene Yu Ji
wiley   +1 more source