Results 61 to 70 of about 715,629 (283)

E-pile model of self-organized criticality [PDF]

open access: yes, 2007
The concept of percolation is combined with a self-consistent treatment of the interaction between the dynamics on a lattice and the external drive. Such a treatment can provide a mechanism by which the system evolves to criticality without fine tuning ...
Milovanov, A. V.   +2 more
core   +1 more source

Electrically driven optical interferometry with spins in silicon carbide [PDF]

open access: yes, 2019
Interfacing solid-state defect electron spins to other quantum systems is an ongoing challenge. The ground-state spin's weak coupling to its environment bestows excellent coherence properties, but also limits desired drive fields.
Abe, Hiroshi   +13 more
core   +2 more sources

Clustering Algorithm Reveals Dopamine‐Motor Mismatch in Cognitively Preserved Parkinson's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore the relationship between dopaminergic denervation and motor impairment in two de novo Parkinson's disease (PD) cohorts. Methods n = 249 PD patients from Parkinson's Progression Markers Initiative (PPMI) and n = 84 from an external clinical cohort.
Rachele Malito   +14 more
wiley   +1 more source

Feasibility and Tolerability of Performing Portable MRI for Neurological Disorders in an Outpatient Neurology Clinic: A Prospective Cohort

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Accessing brain magnetic resonance imaging (MRI) can be challenging, especially for underserved patients, which may lead to disparities in neurological diagnosis. Method This mixed‐methods study enrolled adults with one of four neurological disorders: mild cognitive impairment or dementia of the Alzheimer type, multiple sclerosis ...
Maya L. Mastick   +19 more
wiley   +1 more source

Design and Test of the Electrical System of the All-Electric Subsea Gate Valve Actuator

open access: yesActuators
To bridge the gap in the research on the control and drive methods of the key equipment of the new subsea production control system, all-electric subsea gate valve actuator, and to solve the problems of the valve control and drive system in the ...
Honghai Wang   +4 more
doaj   +1 more source

Research on Efficiency Optimization of Interior Permanent Magnet SynchronousMotor Drive System for Electric Vehicle

open access: yesKongzhi Yu Xinxi Jishu, 2021
With the popularity of electric vehicles and their technical development, efficiency improvement of electric vehicle drive system is of great significance for improving battery life and saving energy.
SUN Bowen   +4 more
doaj  

Особенности разработки математических моделей электрических машин для виртуальных испытательных стендов [PDF]

open access: yes, 2008
The paper presents a specific approach in mathematical modeling for virtual electric machine laboratory. Also the certain practical results of implementing of virtual electric machine laboratory overviewed.
Майстренко, Алексей Михайлович   +1 more
core  

Time-Reversal Symmetry and Universal Conductance Fluctuations in a Driven Two-Level System

open access: yes, 2012
In the presence of time-reversal symmetry, quantum interference gives strong corrections to the electric conductivity of disordered systems. The self-interference of an electron wavefunction traveling time-reversed paths leads to effects such as weak ...
B. L. Al’tshuler   +3 more
core   +1 more source

Fuzzy logic control for energy saving in autonomous electric vehicles [PDF]

open access: yes, 2014
Limited battery capacity and excessive battery dimensions have been two major limiting factors in the rapid advancement of electric vehicles. An alternative to increasing battery capacities is to use better: intelligent control techniques which save ...
Al-Jazaeri, Ahmed O.   +3 more
core   +1 more source

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam   +2 more
wiley   +1 more source

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