Results 21 to 30 of about 1,313 (134)

Fundamental Challenges, Physical Implementations, and Integration Strategies for Ising Machines in Large‐Scale Optimization Tasks

open access: yesAdvanced Electronic Materials, EarlyView.
Ising machines are emerging as specialized hardware solvers for computationally hard optimization problems. This review examines five major platforms—digital CMOS, analog CMOS, emerging devices, coherent optics, and quantum systems—highlighting physics‐rooted advantages and shared bottlenecks in scalability and connectivity.
Hyunjun Lee, Joon Pyo Kim, Sanghyeon Kim
wiley   +1 more source

On growth majorants of subharmonic functions [PDF]

open access: yesМатематичні Студії, 2011
We describe growth majorants of subharmonic in R^m (m≥2) functions. To do this, we exceptionally reduce the problem to problems in the theory of positive monotonous functions.
Yu. S. Protsyk, Ya. V. Vasyl’kiv
doaj  

Temperature induced syllable breaking unveils nonlinearly interacting timescales in birdsong motor pathway. [PDF]

open access: yesPLoS ONE, 2013
The nature of telencephalic control over premotor and motor circuits is debated. Hypotheses range from complete usurping of downstream circuitry to highly interactive mechanisms of control.
Matías A Goldin   +4 more
doaj   +1 more source

Analysis of Harmonic Instability of Tokamak Power System Caused by Rectifier Transformer Bias

open access: yes南方能源建设, 2022
[Introduction] The paper aims to effectively suppress the disturbance of non characteristic harmonics to the power grid in the tokamak power supply system, the paper studies the mechanism of low-frequency harmonics in the tokamak power supply system ...
Jiansheng WANG   +3 more
doaj   +1 more source

Decoding Finely Tuned Gamma Oscillations in Chronic Deep Brain Stimulation for Parkinson's Disease

open access: yesMovement Disorders, EarlyView.
Abstract Background Finely tuned Gamma (FTG) activity—spontaneous narrowband Gamma oscillations (sFTG) or entrained to half the stimulation frequency (eFTG)—is typically linked to on‐medication states and dyskinesia in Parkinson's disease (PD), making it a potential physiomarker for adaptive deep brain stimulation (aDBS).
Marjolein Muller   +8 more
wiley   +1 more source

Subharmonic functions of finite (γ,ε) -type in a half-plane [PDF]

open access: yesМатематичні Студії, 2012
We obtain criterions for delta-subharmonic function to belong to the class of functions of finite (γ,ε) )-type in a half-plane. These criterions are formulated in terms of Fourier coefficients of a function.
K. G. Malyutin, I. I. Kozlova
doaj  

A Simulation for Detecting Nonlinear Echoes from Microbubbles Packets

open access: yesArchives of Acoustics, 2014
This work presents a simulation of the response of packets of microbubbles in an ultrasonic pulse-echo scan line. Rayleigh-Plesset equation has been used to predict the echo from numerically obtained radial dynamics of microbubbles. Varying the number of
Mohamed Galal Sayed ALI   +2 more
doaj   +1 more source

Absence of stationary states and non-Boltzmann distributions of fractional Brownian motion in shallow external potentials

open access: yesNew Journal of Physics, 2022
We study the diffusive motion of a particle in a subharmonic potential of the form U ( x ) = | x | ^c (0 < c < 2) driven by long-range correlated, stationary fractional Gaussian noise ξ _α ( t ) with 0 < α ⩽ 2.
Tobias Guggenberger   +2 more
doaj   +1 more source

Linear Mechatronic Modeling of Rectangular Tank Sloshing Dynamics

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Sloshing dynamics in partially filled tanks can strongly influence system‐level behavior when fluid motion couples with rigid‐body dynamics. This paper presents a linear and acausal two‐dimensional sloshing model for rectangular tanks, based on the reformulation of established sloshing theory within a modular, multi‐domain modeling framework ...
Magnus Steinstø, Eilif Pedersen
wiley   +1 more source

Dynamic Analysis of Electrically Assisted Turbocharger Rotor Considering Contact Effects in Nut Structures

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT The rotor system of an electrically assisted turbocharger (EAT) is composed of multiple shaft components; The nonlinear connection and contact effects make it difficult to determine the system dynamic characteristics. To improve the modeling accuracy of EAT rotor system and evaluate the influence of contact between multi‐axis components and ...
Wenchao Liang   +5 more
wiley   +1 more source

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