Search results for "Omou"
showing 10 items of 195 documents
A Neural Multi-Agent Architecture for an Autonomous Mobile Robot Control
1999
The aim of this paper is to introduce a multi-agent architecture for an autonomous robot control oriented to obtain high design modularity and high parallelism of decision processes. A multi-agent approach allows us to design several specialized agents and each of them is optimized in order to solve a single part of the whole task. Each agent is able to cooperate with other agent exchanging information, so the robot is able to make the appropriate policy of management to reach a prefixed goal. We tested the proposed architecture with a simple application: an autonomous mobile robot performs object retrieval tasks into unknown structured environments. The robot is not given a priori map of t…
An original control strategy of storage systems for the frequency stability of autonomous grids with renewable power generation
2021
This work examines the operation of the autonomous power system of a geographical island assuming the integration of significant generation shares from renewable energy sources and the installation of the required storage systems. The frequency stability of the system is investigated considering different operating conditions, in terms of load demand and renewable power generation. The main focus of the work is an original control strategy specifically designed for power converters interfacing storage units to the grid. The proposed strategy is based on an extended frequency droop control, which selects specific droop settings depending on the operating mode—charge or discharge—of the stora…
Els parlars valencians
2018
En Scripta : revista internacional de literatura i cultura medieval i moderna = Scripta : International Journal of Medieval & Modern Literature & Culture. València : Universitat de València. Vol. 12 (desembre 2018), n. 12, pp. 254-258. Este artículo se encuentra disponible en la página web de la revista en la siguiente URL: https://ojs.uv.es/index.php/scripta/article/view/13659/12700
Autonomiczna Republika Krymu: pogranicze ukraińsko-rosyjskie
2014
Przedmiotem niniejszego artykułu jest kategoria pogranicza ukraińsko-rosyjskiego ze szczególnym uwzględnieniem Autonomicznej Republiki Krymu. Istotne jest ukazanie pogranicza w różnych kontekstach i ujęciach, dlatego w pierwszej części artykułu odniesiono się do wydarzeń, jakie rozgrywały się na terytorium Ukrainy na końcu 2013 roku i w pierwszych miesiącach 2014 roku. Wydarzenia ostatnich miesięcy pokazują wyraźnie, że Południowy Wschód Ukrainy nie jest monolitem. Inaczej funkcjonuje społeczeństwo Krymu, inaczej Donbasu, a jeszcze inaczej Odessy czy Charkowa. W drugiej części artykułu przedstawiono zarys historyczny etnosu Tatarów krymskich, który okazał się niezbędny do ukazania przynależ…
Model-assisted ultrasonic calibration using intentionally embedded defects for in-process weld inspection
2021
Abstract Automated in-process Non-Destructive Testing (NDT) systems are rapidly gaining traction within the manufacturing industry as they reduce manufacturing time and costs. When considering calibration and verification of such systems, creating defects of known geometry and nature during the deposition of a weld can: (I) help examine the capability of the automated system to detect and characterise defects, (II) be used to form a database of signals associated with different defect types to train intelligent defect classification algorithms, and (III) act as a basis for in-process gain calibration during weld inspection at high temperatures, where the ultrasound beam can be skewed as a r…
Stability analysis with H∞ performance of production networks with autonomous work systems and time-varying delays
2011
Author's version of a chapter in the book: Proceeding of the 30th Chinese Control Conference. Also available from the publisher at: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6001452&tag=1 This paper considers the problem of stability analysis with an H ∞ performance for a class of production networks of autonomous work systems with delays in the capacity changes. The system under consideration shares information between work systems and the work systems adjust capacity with the objective of maintaining a desired amount of local work in progress. An appropriate Lyapunov function is utilized to establish some delay-range-dependent conditions in terms of linear matrix inequalitie…
Autonomā vācu valodas apgūšana studentu vidū
2020
Šis darbs ir veltīts vācu valodas patstāvīgas mācīšanās pētīšanai studentu vidū. Tas ir balstīts uz autores tiešo pieredzi Erasmus studiju apmaiņas programmas laikā, kad studentiem bija nepieciešams apgūt vācu valodu un komunicēt starpkultūru vidē. Rezultātā tika pētītas vācu valodes apguves iespējas un veidi studentu vidū, kā arī autonomija šajā procesā. Pētot bibliogrāfiju, tika konstatēts, ka ir ierobežots daudzums literatūras, kas īpaši koncentrējas uz vācu valodas apguvi studentu vidū Erasmus programmas kontekstā. It īpaši maz ir zināms par viņu mērķiem, vēlmēm un iecienītākajām metodēm. Darba mērķis ir ne tikai noteikt metodes, ko studenti izmanto vācu valodas apguvei, bet arī noskaid…
Traffic congestion reduction based on vehicle platoons and intelligent crossroads interactions
2021
Intersections are at the core of urban congestion. For more than a decade, new approaches based on autonomous and connected driving have been proposed. They aim to improve the performance of traffic control at intersections, by harnessing connectivity and driving automation (longitudinal control). These approaches have in common the fact that vehicles can negotiate together their right of way to use the conflicting space. However, they are different in terms of the way they share the space and optimization techniques. The challenge is to define the sequence of access of vehicles to the common space (which one goes first, which is the second, and so on) and the speed profile of vehicles to a…
Standardization of sperm motility analysis by using CASA-Mot for Atlantic salmon (Salmo salar), European eel (Anguilla anguilla) and Siberian sturgeo…
2019
[EN] It is essential to define an optimized standard method to assess the fish sperm quality to minimize the differences between the results obtained by different laboratories. Only this optimization and standardization can make them useful from academia to industry. This study presents the validation of sperm motility assessment using a CASA-Mot system for three endangered diadromous fish species: European eel (Anguilla anguilla), Atlantic salmon (Salmo salar) and Siberian sturgeon (Acipenser baerii). To attain this goal, different technical and data processing methods were tested: 1) magnification lens (×10 and ×20), 2) Spermtrack® reusable chambers (10 and 20¿¿m depth) and 3) different f…
Artificial Potential Field Simulation Framework for Semi-Autonomous Car Conception
2017
International audience; Artificial potential field is investigated to provide a high level of synergy between driver and semi-autonomous vehicle. This article presents a framework developed to test the performances of this approach. Stand-alone performances of this system is tested for a lane keeping and cruise control application. Performances are promising and future development is discussed.