Results 91 to 100 of about 3,903 (306)

Sex‐Stratified Association of Regional Dopamine Transporter Binding With Disease Progression in Amyotrophic Lateral Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To clarify the clinical relevance of dopamine transporter single‐photon emission computed tomography (DAT‐SPECT) abnormalities in amyotrophic lateral sclerosis (ALS), with a prespecified focus on sex‐stratified associations with disease progression and short‐term prognosis.
Tomoya Kawazoe   +7 more
wiley   +1 more source

Kinematically Optimal Robust Control of Redundant Manipulators

open access: yesInternational Journal of Applied Mechanics and Engineering, 2017
This work deals with the problem of the robust optimal task space trajectory tracking subject to finite-time convergence. Kinematic and dynamic equations of a redundant manipulator are assumed to be uncertain.
M. Galicki
doaj   +1 more source

Plasma EV Proteomics Identifies ECM Remodeling and Inflammatory Proteins LUM and C7 as Candidate Biomarkers in FSHD

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Facioscapulohumeral muscular dystrophy (FSHD) is one of the most debilitating and common muscular dystrophies. Despite its severity, no approved therapy exists for FSHD patients. However, several therapeutic candidates are currently under development, and some have recently entered clinical trials, marking the need for reliable ...
Mustafa Bilal Bayazit   +11 more
wiley   +1 more source

Kinematically optimal hyper-redundant manipulator configurations [PDF]

open access: yes, 1995
“Hyper-redundant” robots have a very large or infinite degree of kinematic redundancy. This paper develops new methods for determining “optimal” hyper-redundant manipulator configurations based on a continuum formulation of kinematics.
Chirikjian, Gregory S., Burdick, Joel W.
core  

A Two‐Stage Questionnaire and Actigraphy Screening for iRBD in a Multicenter Retrospective Cohort

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Isolated rapid‐eye‐movement sleep behavior disorder is a prodromal marker of synucleinopathies. However, most cases remain undiagnosed due to the insufficient predictive value of questionnaires and limited access to confirmatory video‐polysomnography. We assessed a two‐stage screening strategy combining a brief questionnaire on rapid‐
Caleb A. Massimi   +17 more
wiley   +1 more source

Inverse Kinematics and Control of a 7-DOF Redundant Manipulator Based on the Closed-Loop Algorithm

open access: yes, 2011
Closed-loop inverse kinematics (CLIK) algorithm mostly resolves the redundancy at the velocity level. In this paper we extend the CLIK algorithm to the acceleration level to meet some applications that require the joint accelerations.
and Xinhua Zhao   +2 more
core  

Planejamento de trajetórias e evitamento de colisão em tarefas de manipuladores reduntantes operando em ambientes confinados [PDF]

open access: yes, 2008
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-graduação em Engenharia Mecânica.O planejamento de trajetórias de soldagem para manipuladores redundantes operando em ambientes confinados requer métodos ...
Simas, Henrique
core  

Modeling, Simulation and Control of a Redundant SCARA-Type Manipulator Robot

open access: yesInternational Journal of Advanced Robotic Systems, 2012
In this paper, the modeling of a redundant SCARA-type manipulator robot with five degrees of freedom is presented. We propose three controllers - hyperbolic sine-cosine, sliding mode, and calculated torque - which are applied to the discussed model.
Claudio Urrea, John Kern
doaj   +1 more source

Robust Task Space Trajectory Tracking Control of Robotic Manipulators

open access: yesInternational Journal of Applied Mechanics and Engineering, 2016
This work deals with the problem of the accurate task space trajectory tracking subject to finite-time convergence. Kinematic and dynamic equations of a redundant manipulator are assumed to be uncertain.
M. Galicki
doaj   +1 more source

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