Results 151 to 160 of about 1,494,544 (315)

Educação ambiental: o papel atribuído aos actores educativos [PDF]

open access: yes, 2009
Uma reflexão sobre as práticas sociais, num contexto marcado pela degradação permanente do meio ambiente, cria uma necessária articulação da Educação Ambiental com a Escola.
Albuquerque, Carlos   +3 more
core  

Robust Reinforcement Learning Control Framework for a Quadrotor Unmanned Aerial Vehicle Using Critic Neural Network

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Quadrotor unmanned aerial vehicle control is critical to maintain flight safety and efficiency, especially when facing external disturbances and model uncertainties. This article presents a robust reinforcement learning control scheme to deal with these challenges.
Yu Cai   +3 more
wiley   +1 more source

Cadenas, redes y actores de la agroindustria en el contexto de la globalización. El aporte de los enfoques contemporáneos del desarrollo regional

open access: yesEspiral, 2006
A partir de la concepción de los sistemas sociales como procesos de interacción, organización y emergencia, se ha construido una crítica al enfoque positivista del desarrollo regional.
Héctor B. Fletes Ocón
doaj  

Memorias: actores, usos y abusos. Perspectivas y debates [PDF]

open access: yes, 2008
El presente trabajo pretende examinar las nociones fundamentales que sobre la memoria son aplicables al conocimiento histórico; para ello será necesario delimitarlas con el fin de no confundirlas pero también resaltar los puntos de conexión o ...
Sánchez-Mosquera, Marcial
core  

Bridging High‐Fidelity Simulations and Physics‐Based Learning using a Surrogate Model for Soft Robot Control

open access: yesAdvanced Intelligent Systems, EarlyView.
A surrogate‐model‐based framework is proposed for combining high‐fidelity finite element method and efficient physics simulations to enable fast, accurate soft robot simulation for reinforcement learning, validated through sim‐to‐real experiments. Soft robotics holds immense promise for applications requiring adaptability and compliant interactions ...
Taehwa Hong   +3 more
wiley   +1 more source

As associações capitalistas eborenses: actores, áreas de negócio [PDF]

open access: yes, 2007
Partindo da análise do registo comercial e industrial, este artigo descreve as áreas de negócio emergentes na área de Évora e os actores sociais neles envolvidos, considerando as formas jurídicas que tomaram as associações de capitais, bem como a sua ...
Guimarães, Paulo Eduardo
core  

Adaptive Autonomy in Microrobot Motion Control via Deep Reinforcement Learning and Path Planning Synergy

open access: yesAdvanced Intelligent Systems, EarlyView.
This study introduces a data‐driven framework that combines deep reinforcement learning with classical path planning to achieve adaptive microrobot navigation. By training a surrogate neural network to emulate microrobot dynamics, the approach improves learning efficiency, reduces training time, and enables robust real‐time obstacle avoidance in ...
Amar Salehi   +3 more
wiley   +1 more source

Collaborative Multiagent Closed‐Loop Motion Planning for Multimanipulator Systems

open access: yesAdvanced Intelligent Systems, EarlyView.
This work presents a hierarchical multi‐manipulator planner, emphasizing highly overlapping space. The proposed method leverages an enhanced Dynamic Movement Primitive based planner along with an improvised Multi‐Agent Reinforcement Learning approach to ensure regulatory and mediatory control while ensuring low‐level autonomy. Experiments across varied
Tian Xu, Siddharth Singh, Qing Chang
wiley   +1 more source

Young children's perspectives of time: New directions for co‐constructing understandings of quality in ECEC

open access: yesBritish Educational Research Journal, EarlyView., 2023
Abstract Children's relationship with time in preschools is an under‐researched area. Young children rarely know how to measure time using a clock, but their experiences of time may contribute to understanding children's well‐being and debates about quality in preschools.
Kristín Dýrfjörð   +3 more
wiley   +1 more source

Maneuverable Multilegged Locomotion through Anisotropically Arranged Soft Backbones in a Single‐Actuator Modular Miniature Robot

open access: yesAdvanced Intelligent Systems, EarlyView.
A modular eight‐legged robot exploits anisotropically oriented soft I‐beam backbones to transmit vibration from a single unbalanced‐mass actuator, producing frequency‐dependent multimodal gaits. A pseudo‐rigid‐body model enables high‐fidelity MuJoCo simulation, while Bayesian parameter identification and reinforcement learning yield robust control ...
Yiğit Yaman   +4 more
wiley   +1 more source

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