Application of a robust QFT linear control method to the course changing manoeuvring of a ship

This paper describes in detail the design methodology of a robust QFT (Quantitative Feedback Theory) controller for the control of the course changing of a ship. A linear model is used with uncertainty in the parameters. The system is designed to fulfil the specifications of robust stability and robust tracking of a reference system

La renovación de la palabra en el bicentenario de la Argentina : los colores de la mirada lingüística

El libro reúne trabajos en los que se exponen resultados de investigaciones presentadas por investigadores de Argentina, Chile, Brasil, España, Italia y Alemania en el XII Congreso de la Sociedad Argentina de Lingüística (SAL), Bicentenario: la renovación de la palabra, realizado en Mendoza, Argentina, entre el 6 y el 9 de abril de 2010. Las temáticas abordadas en los 167 capítulos muestran las grandes líneas de investigación que se desarrollan fundamentalmente en nuestro país, pero también en los otros países mencionados arriba, y señalan además las áreas que recién se inician, con poca tradición en nuestro país y que deberían fomentarse. Los trabajos aquí publicados se enmarcan dentro de las siguientes disciplinas y/o campos de investigación: Fonología, Sintaxis, Semántica y Pragmática, Lingüística Cognitiva, Análisis del Discurso, Psicolingüística, Adquisición de la Lengua, Sociolingüística y Dialectología, Didáctica de la lengua, Lingüística Aplicada, Lingüística Computacional, Historia de la Lengua y la Lingüística, Lenguas Aborígenes, Filosofía del Lenguaje, Lexicología y Terminología

Wireless system application for in-scale marine vehicles

Advances in information and communications technology have enabled the use of wireless communication techniques in all sectors for the transmission of information in different forms. Wireless communications and distributed computing have made it possible to develop the remote experimentation environment for in-scale marine vehicles which is the subject of this work. The present article describes a wireless system architecture suitable for communication among several in-scale vehicles and a station base located on land, which can control the vehicles and acquire data from all of the sensors on board the different vehicles at a distance via wireless communications

Experimentation environment for marine vehicles

This paper describes an experimental environment for the various trials, and manoeuvres performed to verify the stability and steerability of marine vehicles using autonomous in-scale physical models. The model has an Industrial PC which communicates through a wireless network with the laptop on land, which can in turn be connected to other PCs through Internet using 3 generation Universal Mobile Telephone System (3G UMTS) technology. To do this, a software support developed in LabVIEW is used. It is possible from a distance, via the web and via DataSocket, to view data and modify the parameters of all of the instruments of the platform using the wireless network with Wireless Fidelity (WiFi) technology and also the Internet network with 3G UMTS technology. The software accepts different protocols of communication with the platform and is appropriate for performing the sea trials most widely used at present for determining the characteristics of steering and manoeuvring of marine vehicles, such as: turning circle, zig-zag manoeuvre, pull-out manoeuvre and spiral manoeuvre