Results 21 to 30 of about 429,253 (172)
Caenorhabditis elegans Multi-Tracker Based on a Modified Skeleton Algorithm
Sensors, 2021 Automatic tracking of Caenorhabditis elegans (C. egans) in standard Petri dishes is challenging due to high-resolution image requirements when fully monitoring a Petri dish, but mainly due to potential losses of individual worm identity caused by ...
Pablo E. Layana Castro +3 more
doaj +1 more source
Indexação automática e ontologias: identificação dos contributos convergentes na ciência da informação [PDF]
, 2017 A indexação, humana e automática, foi desde sempre uma preocupação da área da ciência da informação (CI). A falta de consistência na indexação humana e de semântica na automática são apontadas como as grandes desvantagens.
Lopes, António Tavares +3 more
core +2 more sources
Implementing Autonomous Driving Behaviors Using a Message Driven Petri Net Framework
Sensors, 2020 Most autonomous car control frameworks are based on a middleware layer with several independent modules that are connected by an inter-process communication mechanism.
Joaquín López +3 more
doaj +1 more source
Merit-Based Motion Planning for Autonomous Vehicles in Urban Scenarios
Sensors, 2021 Safe and adaptable motion planning for autonomous vehicles remains an open problem in urban environments, where the variability of situations and behaviors may become intractable using rule-based approaches.
Juan Medina-Lee +3 more
doaj +1 more source
Optimal Control for Aperiodic Dual-Rate Systems With Time-Varying Delays
Sensors, 2018 In this work, we consider a dual-rate scenario with slow input and fast output. Our objective is the maximization of the decay rate of the system through the suitable choice of the n-input signals between two measures (periodic sampling) and their times ...
Ernesto Aranda-Escolástico +4 more
doaj +1 more source
Supervised Learning of Natural-Terrain Traversability with Synthetic 3D Laser Scans
Applied Sciences, 2020 Autonomous navigation of ground vehicles on natural environments requires looking for traversable terrain continuously. This paper develops traversability classifiers for the three-dimensional (3D) point clouds acquired by the mobile robot Andabata on ...
Jorge L. Martínez +4 more
doaj +1 more source
, 1995 Modele de classement centralisé où il suffit de réaliser une seule fois la description bibliographique des documents. Il est aussi possible de les récupérer automatiquement d'une manière illimitée el permettant une économie de temps et de moyens humains ...
Díez Carrera, Carmen +1 more
core +5 more sources
Teleoperación Trilateral con Retardo de un Robot Móvil
Tecnología y Ciencia, 2019 Este artículo analiza la estabilidad de un sistema de teleoperación trilateral de un robot móvil. La dinámica de dos manipuladores maestros de estructura similar y un robot móvil, asimismo se tienen en cuenta retrasos variables en el tiempo y asimétricos.
Emanuel Slawiñski +2 more
doaj +1 more source
A Cluster-Based Channel Assignment Technique in IEEE 802.11 Networks
Telecom, 2020 Channel assignment has become a critical configuration task in Wi-Fi networks due to the increasing number and density of devices which use the same frequency band in the radioelectric spectrum.
Jose Manuel Gimenez-Guzman +2 more
doaj +1 more source
Vision-Based Hybrid Controller to Release a 4-DOF Parallel Robot from a Type II Singularity
Sensors, 2021 The high accuracy and dynamic performance of parallel robots (PRs) make them suitable to ensure safe operation in human–robot interaction. However, these advantages come at the expense of a reduced workspace and the possible appearance of type II ...
José L. Pulloquinga +5 more
doaj +1 more source