Results 71 to 80 of about 317,279 (257)

Gravity‐Dependent Modulation of Downbeat Nystagmus: Insights From Velocity‐Storage Dysfunction

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Downbeat nystagmus varies with head position, a phenomenon termed gravity‐dependent modulation. We aimed to clarify its mechanism using a velocity‐storage model. Methods In 10 patients with downbeat nystagmus due to cerebellar disorders, we recorded eye movements at different pitch‐ and roll‐axis head positions.
Ji‐Hyung Park   +5 more
wiley   +1 more source

Distributed Feedbacks for Time-Delay Signature Suppression of Chaos Generated From a Semiconductor Laser

open access: yesIEEE Photonics Journal, 2012
Chaotic dynamics of a semiconductor laser subject to distributed feedbacks from a fiber Bragg grating (FBG) are investigated through detailed simulations. Because of distributed reflections along the FBG, the approach of FBG feedback performs better than
Song-Sui Li, Qing Liu, Sze-Chun Chan
doaj   +1 more source

Global Rather Than Vertical‐Selective Saccadic Abnormalities in Progressive Supranuclear Palsy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To test whether vertical saccades are preferentially affected in Progressive Supranuclear Palsy (PSP). Methods PSP patients (n = 24) were compared to age‐matched controls (n = 94) and two degenerative groups (Alzheimer's disease, n = 20; Lewy body disease, n = 50).
Duy Duan Nguyen   +6 more
wiley   +1 more source

Distribution of Feedback among Teacher and Students in Online Collaborative Learning in Small Groups

open access: yesDigital Education Review, 2013
This study explores the characteristics and distribution of the feedback provided by the participants (a teacher and her students) in an activity organized inside a collaborative online learning environment.
César Coll   +3 more
doaj  

Distributed Output-Feedback Tracking Control for a Class of Nonlinear Multi-Agent Systems With Polynomial Growth

open access: yesIEEE Access
This paper investigates the distributed output-feedback tracking problem for a class of nonlinear multi-agent systems (MASs) with polynomial growth in unmeasurable states.
Jinxiu Liu   +4 more
doaj   +1 more source

Sufficiency of Local Feedback for Sensor-Actuator Network-Based Control Systems with Distance Sensitivity Properties

open access: yesJournal of Sensor and Actuator Networks, 2013
Timely dissemination of required state information poses a significant challenge in the design of distributed sensor/actuator network-based control systems.
Vinod Kulathumani, Bryan Lemon
doaj   +1 more source

Temporal Divergence of True and False Alarms in Pediatric Nocturnal Seizure Monitoring

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
The early‐morning surge in false seizure alarms supports exploring time‐ or state‐dependent detection thresholds to reduce false detections. ABSTRACT Seizure detection devices can improve the safety of children with epilepsy, yet high false alarms limit their clinical applicability.
Mohammad Shahbakhti   +6 more
wiley   +1 more source

Rate control algorithm for no-feedback distributed video coding

open access: yesTongxin xuebao, 2014
In order to address the high requirement of accuracy on rate estimation in the existed bit-plane-level encoder rate control (ERC) methods, a frame-level ERC algorithm was proposed. It used hierarchical fast motion compensated interpolation to obtain high
HENJian C, Chao HUI, Yong-hong KUO
doaj   +2 more sources

A Feedback Passivation Design for DC Microgrid and Its DC/DC Converters

open access: yesEnergies, 2016
There are difficulties in analyzing the stability of microgrids since they are located on various network structures. However, considering that the network often consists of passive elements, the passivity theory is applied in this paper to solve the ...
Feifan Ji   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy