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1000 tulosta hakusanalla Alberto Angela

Water Footprint and Virtual Water Trade in Spain

Water Footprint and Virtual Water Trade in Spain

Alberto Garrido; M. Ramón Llamas; Consuelo Varela-Ortega; Paula Novo; Roberto Rodríguez-Casado; Maite M. Aldaya

Springer-Verlag New York Inc.
2010
sidottu
1.1 General Framework In most arid and semi-arid countries, water resource management is an issue that is both important and controversial. Most water resources experts now acknowledge that water conflicts are not caused by physical scarcity but are mainly due to poor water management (Rosegrant et al. 2002; Benoit and Comeau 2005; Comprehensive Assessment of Water Management in Agriculture 2007; Garrido and Dinar 2010, among others). The scientific and technological advances of the past 50 years have led to new ways to solve many water-related conflicts, often with tools that seemed unthinkable a few decades ago (Llamas 2005; Lopez-Gunn and Llamas 2008). This study deals with the estimation and analysis of Spain’s water footprint, both from a hydrological and economic perspective. Its ultimate objective is to report on the allocative efficiency of water and economic resources. This analysis can provide a transparent and multidisciplinary framework for informing and optimising water policy decisions, contributing at the same time to the implementation of the EU Water Framework Directive (WFD) (2000/60/EC). It also responds to the current mandate of the Spanish Ministry of Environment and Rural and Marine Affairs, which recently issued instructions for drafting river basin management plans in compliance with the EU Water Framework Directive, with a deadline of end of year 2009 and then every 6 years (BOE 2008).
Indigenas De Las Antillas

Indigenas De Las Antillas

ALBERTO CASTILLO VAZQUEZ

Lulu.com
2011
nidottu
Novela historica que relata la vida en primera persona de un indio de la tribu de los arawak o tainos desde 1491 hasta la llegada de Cristobal Colon. Tecnicas de caza, viajes en canoa, luchas y guerras entre las distintas tribus indigenas de america.
Robust Autonomous Guidance

Robust Autonomous Guidance

Alberto Isidori; Lorenzo Marconi; Andrea Serrani

Springer London Ltd
2012
nidottu
Plant control systems are subject to the undesirable influence of exogenous commands and disturbances. To track and reject these the authors have designed a feedback control system based on embedding a model of them within the controller itself - the "internal model". From a review of the principles of internal-model-based feedback control design, this book moves on to expound recent enhancements to such designs and then to their implementation in systems operating under conditions of great uncertainty. The case studies presented involve control systems coping with a high degree of nonlinear behaviour. The key issues addressed in each are the design of an adaptive internal model for the specific tracking task and of stabilizing control capable of steering the tracking error to zero while keeping all internal states bounded for any arbitrarily large but bounded envelope of initial data and uncertain parameters. Nested saturated controls form the basis of novel tools for asymptotic analysis and design.
Nonlinear Control Systems II

Nonlinear Control Systems II

Alberto Isidori

Springer London Ltd
2012
nidottu
The purpose of this book is to present a self-contained and coordinated de­ scription of several design methods for nonlinear control systems, with special emphasis on the problem of achieving stability, globally or on arbitrarily large domains, in the presence of model uncertainties. The book is intended to be a continuation of my earlier book Nonlinear Control Systems, dealing with the fundamentals of the theory of nonlinear control systems, whose third edition was published in 1995. In this respect, it is written in the form of a "second volume" of a single work, and uses a numbering system that continues the one adopted in the earlier book, with which the overlap is essentially insignificant. The book is intended as a graduate text as well as a reference to scientists and engineers interested in the design of feedback laws for nonlinear control systems. In the last decade, methods for global stabilization of nonlinear systems have experienced a vigorous growth.
Nonlinear Control Systems

Nonlinear Control Systems

Alberto Isidori

Springer London Ltd
2013
nidottu
The purpose of this book is to present a self-contained description of the fun­ damentals of the theory of nonlinear control systems, with special emphasis on the differential geometric approach. The book is intended as a graduate text as weil as a reference to scientists and engineers involved in the analysis and design of feedback systems. The first version of this book was written in 1983, while I was teach­ ing at the Department of Systems Science and Mathematics at Washington University in St. Louis. This new edition integrates my subsequent teaching experience gained at the University of Illinois in Urbana-Champaign in 1987, at the Carl-Cranz Gesellschaft in Oberpfaffenhofen in 1987, at the University of California in Berkeley in 1988. In addition to a major rearrangement of the last two Chapters of the first version, this new edition incorporates two additional Chapters at a more elementary level and an exposition of some relevant research findings which have occurred since 1985.
GIS to Support Cost-effective Decisions on Renewable Sources

GIS to Support Cost-effective Decisions on Renewable Sources

Alberto Gemelli; Adriano Mancini; Claudia Diamantini; Sauro Longhi

Springer London Ltd
2013
nidottu
Through the results of a developed case study of information system for low temperature geothermal energy, GIS to Support Cost-effective Decisions on Renewable Sources addresses the issue of the use of Geographic Information Systems (GIS) in evaluating cost-effectiveness of renewable resource exploitation on a regional scale. Focusing on the design of a Decision Support System, a process is presented aimed to transform geographic data into knowledge useful for analysis and decision-making on the economic exploitation of geothermal energy. This detailed description includes a literature review and technical issues related to data collection, data mining, decision analysis for the informative system developed for the case study. A multi-disciplinary approach to GIS design is presented which is also an innovative example of fusion of georeferenced data acquired from multiple sources including remote sensing, networks of sensors and socio-economic censuses. GIS to Support Cost-effective Decisions on Renewable Sources is a useful, practical reference for engineers, managers and researchers involved in the design of GIS, decision support systems, investment planning/strategy in renewable energy and ICT innovation in this field.
Active Control of Flexible Structures

Active Control of Flexible Structures

Alberto Cavallo; Giuseppe de Maria; Ciro Natale; Salvatore Pirozzi

Springer London Ltd
2014
nidottu
A complete solution for problems of vibration control in structures that may be subject to a broadband primary vibration field, this book addresses the following steps: experimental identification of the dynamic model of the structure; optimal placement of sensors and actuators; formulation of control constraints in terms of controller frequency response shape; controller design and simulation; and controller implementation and rapid prototyping. The identification procedure is a gray-box approach tailored to the estimation of modal parameters of large-scale flexible structures. The actuator/sensor placement algorithm maximizes a modal controllability index improving the effectiveness of the control. Considering limitations of sensors and actuators, the controller is chosen as a stable, band-pass MIMO system resulting from the closed-form solution of a robust control problem. Experimental results on an aeronautical stiffened skin panel are presented using rapid-prototyping hardware.
Gimnasia Especifica Para El Rejuvenecimiento Facial
La gimnasia facial consiste en una serie de ejercicios adecuados a cada grupo muscular de la cara, cabeza y cuello. De esta forma, podremos disfrutar y mantener las caracteristicas de la juventud y retardar al maximo los sintomas del envejecimiento cutaneo. Si los demas musculos del cuerpo reaccionan positivamente al ejercicio, dando por resultado un aspecto firme y rejuvenecido 'por que no iban a responder igualmente los de la cara? Aun asi, este libro no solo esta dedicado a tratar la gimnasia facial y sus ejercicios, trataremos otros temas de forma breve y concisa, por medio de un lenguaje accesible intentaremos proporcionar una lectura amena e interesante. Mostraremos unos cuantos aspectos que ayudaran a mejorar nuestros conocimientos e incluso nuestra aptitud para lograr el objetivo de ser capaces de llevar una vida mas activa y saludable, potenciando los efectos positivos del acondicionamiento fisico a traves de la edad.
Historias De La Historia De La Iglesia

Historias De La Historia De La Iglesia

Alberto Royo Mejia

Lulu.com
2011
nidottu
Este amenisimo libro nos acerca a una gran desconocida: la Historia de la Iglesia. No es un tratado sistematico, sino un conjunto de pequenas historias que nos introducen en el fascinante cuadro formado a lo largo de los siglos. El libro nos lleva desde las herejias de los primeros tiempos de la Iglesia a la epoca posconciliar, deteniendose de forma particular en la evangelizacion de Europa y de America. Hay que destacar tambien una epoca poco conocida pero especialmente importante para los espanoles: la persecucion religiosa durante la Segunda Republica. Estas Historias de la Historia de la Iglesia incluyen tambien diversos temas polemicos, como el mito de la tolerancia musulmana en Espana, el comportamiento de Pio XII con los judios, la legendaria Papisa Juana o el asesinato de Ellacuria, entre otros. A lo largo del libro, se muestran de forma clara las luces y las sombras de los temas tratados, puesto que ambas estan necesariamente presentes en la Iglesia, que lleva su tesoro en vasos de barro.
Fibonacci Y Los Problemas Del Liber Abaci
Hoy en dia casi todo el mundo recuerda a Leonardo de Pisa, mas conocido como Fibonacci, por la sucesion: 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, ...en la que cada termino de la misma se halla sumando los dos precedentes. Esta sucesion aparece como solucion de uno de los problemas que Fibonacci incluyo en su libro, el Liber Abaci: Un hombre coloca una pareja de conejos de un mes de edad en un recinto cerrado para ver cuantos descendientes produce en el curso de un ano, y se supone que cada mes ,a partir del segundo mes de su vida ,cada pareja de conejos da origen a una nueva. 'Cuantas parejas habra al cabo de un ano? El Liber Abaci fue escrito por Fibonacci en 1202 y contiene ademas una notable coleccion de problemas pertenecientes al ambito de la matematica recreativa. En este libro se proponen una serie de problemas extraidos del Liber Abaci elegidos entre los mas interesantes.