Results 121 to 130 of about 1,174,241 (301)

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

Annals 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, Mark Paine, Soohyun Lee, Amir Fazlollahi, Baibin (Ben) Wang, John D. O'Sullivan, Peter J. Nestor   +6 more
wiley   +1 more source

NEURAL NETWORKS MODELLING FOR AIRCRAFT FLIGHT GUIDANCE DYNAMICS DOI 10.5028/jatm.2012.04020712

Journal of Aerospace Technology and Management, 2012
The sustained increase of the air transportation sector over the last decades has led to traffic saturated situations, inducing higher costs for airlines and important negative impacts for airport surrounding communities.
Wen-Chi Lu, Walid El-Moudani, Téo Cerqueira Revoredo, Felix Mora-Camino   +3 more
doaj  

Stage‐Dependent β‐Synuclein Links MRI and Cognitive Decline in Alzheimer's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Synaptic degeneration drives cognitive decline in Alzheimer's disease (AD), but synaptic biomarkers are scarce. Brain‐enriched β‐synuclein emerged as a synaptic damage marker. We investigated its diagnostic, prognostic, and structural correlates across the AD continuum.
Ulaş Ay, Merve Alaylioglu, Erdi Sahin, Sanem Sultan Yoruk Oner, Gulce Iskan, Gulce Cosku Yilmaz Cakan, Gozde Kizilates‐Evin, Emre Hari, Elif Kurt, Erdinc Dursun, Basar Bilgic, Hasmet Hanagasi, Hakan Gurvit, Tamer Demiralp, Duygu Gezen‐Ak, Bedia Samanci   +15 more
wiley   +1 more source

Constrained Trajectory Generation and Fault Tolerant Control Based on Differential Flatness and B-splines

, 2011
This thesis provides a unified treatment of the notions of differential flatness, for the characterisation of continuous-time linear systems, and B-splines, a mathematical concept commonly used in computer graphics. Differential flatness is a property of
Suryawan, Fajar
core  

Differential Flatness-Based Model Predictive Speed Control for Direct Current Motor–Gearhead Drive Systems

Machines
This paper introduces a new speed control framework design for direct current electric motors coupled with a gearhead. The proposed framework suitably integrates differential flatness, model predictive control, and Kalman filter theory for efficient ...
Elizabeth Delgadillo-Perez, Hugo Yañez-Badillo, Carlos Sotelo, David Sotelo, Francisco Beltran-Carbajal, Jesus C. Hernandez   +5 more
doaj   +1 more source

White Matter and Perivascular Imaging Changes in Alzheimer's Disease and Cerebral Amyloid Angiopathy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Peak‐width of skeletonized mean diffusivity (PSMD) and diffusion tensor imaging–analysis along the perivascular space (DTI‐ALPS), reflecting white matter integrity and glymphatic function, are altered in Alzheimer's disease (AD).
Debina Laishram, Guangwei Du, Sangam Kanekar, Nandakumar Nagaraja   +3 more
wiley   +1 more source

An Augmented Lagrangian Perspective on Differential Flatness-Based Control of Dual Spring-Loaded Inverted Pendulum Model

Controller synthesis for bipedal legged locomotion is challenging. The spring-loaded inverted pendulum (SLIP) model is an effective simplified model for planning bipedal locomotion.
Cao, Zhefeng, Hong, Zejun, Chen, Hua
core   +1 more source

Differential-Flatness-Based Trajectory Planning for Direct Helicopter Shipboard Landing with Geometry-Aware Final-Landing Constraints

Aerospace
Autonomous helicopter shipboard landing requires the generation of dynamically feasible trajectories that can accurately match the time-varying motion of a moving deck while maintaining desirable near-deck geometric and kinematic characteristics.
Zhihong Yang, Chen Jiang, Haowen Wang
doaj   +1 more source

Triangular Index Ratio as an Alternative Method to the Alpha Angle for Defining the Presence of Cam Morphology: A Prospective Cohort Study

Arthritis Care &Research, EarlyView.
Objective Cam morphology, which is a significant risk factor for hip osteoarthritis, is commonly quantified by the alpha angle (AA). This study aims to explore the potential of the triangular index ratio (TIR) to quantify cam morphology on anteroposterior radiographs by assessing the association between TIR‐defined cam morphology and the development of
Jinchi Tang, Fleur Boel, Michiel M. A. van Buuren, Noortje S. Riedstra, Myrthe A. van den Berg, Jos Runhaar, Sita Bierma‐Zeinstra, Rintje Agricola   +7 more
wiley   +1 more source

Active Sensing Control for Differentially Flat Systems

IEEE Control Systems Letters
This paper proposes an optimal active perception strategy using the Constructibility Gramian (CG) as a metric to quantify the richness of the information acquired along the planned trajectory. A critical issue is the dependence of the CG on the transition matrix, whose closed-form expression is not available for most robotic systems while its numerical
Olga Napolitano, Annamaria Pinizzotto, Matteo Verdecchia, Alessio Pettinari, Daniela Selvi, Lucia Pallottino, Paolo Salaris   +6 more
openaire   +2 more sources