Two-Dimensional Systems

by Abdellah Benzaouia, Abdelaziz Hmamed, Fernando Tadeo

2015 · Springer

A solution permitting the stabilization of 2-dimensional (2-D) continuous-time saturated system under state feedback control is presented in this book. The problems of delay and saturation are treated at the same time. The authors obtain novel results on continuous 2-D systems using the unidirectional Lyapunov function. The control synthesis and the saturation and delay conditions are presented as linear matrix inequalities. Illustrative examples are worked through to show the effectiveness of the approach and many comparisons are made with existing results. The second half of the book moves on to consider robust stabilization and filtering of 2-D systems with particular consideration being given to 2-D fuzzy systems. Solutions for the filter-design problems are demonstrated by computer simulation. The text builds up to the development of state feedback control for 2-D Takagi–Sugeno systems with stochastic perturbation. Conservatism is reduced by using slack matrices and the coupling between the Lyapunov matrix and the system matrices is broken by using basis-dependent Lyapunov functions. Mean-square asymptotic stability and prescribed H-infinity performance are guaranteed. Two-Dimensional Systems emphasizes practical approaches to control and filter design under constraints that appear in real problems and uses off-the-shelf software to achieve its results. Researchers interested in control and filter design for multidimensional systems, especially multi-dimensional fuzzy systems, will find this book a useful resource as will graduate students specializing in dynamical sytems.

Global Economic Impacts of Physical Climate Risks

by Caterina Lepore, Roshen Fernando

2023 · International Monetary Fund

This paper evaluates the global economic consequences of physical climate risks under two Shared Socioeconomic Pathways (SSP 1-2.6 and SSP 2-4.5) using firm-level evidence. Firstly, we estimate the historical sectoral productivity changes from chronic climate risks (gradual changes in temperature and precipitation) and extreme climate conditions (representative of heatwaves, coldwaves, droughts, and floods). Secondly, we produce forward-looking sectoral productivity changes for a global multisectoral sample of firms. For floods, these estimates account for the persistent productivity changes from the damage to firms’ physical capital. Thirdly, we assess the macroeconomic impact of these shocks within the global, multisectoral, intertemporal general equilibrium model: G-Cubed. The results indicate that, in the absence of additional adaptation relative to that already achieved by 2020, all the economies would experience substantial losses under the two climate scenarios and the losses would increase with global warming. The results can be useful for policymakers and practitioners interested in conducting climate risk analysis.

Insect Pathology

by Fernando E. Vega, Harry K. Kaya

2012 · Academic Press

Insect Pathology, 2nd ed. Fernando E. Vega and Harry K. Kaya, Editors Foreword May Berenbaum Chapter 1. Scope and Basic Principles of Insect Pathology Harry K. Kaya and Fernando E. Vega Chapter 2 - History of Insect Pathology Elizabeth W. Davidson Chapter 3 - Principles of Epizootiology and Microbial Control David I. Shapiro-Ilan, Denny Bruck, and Lawrence A. Lacey Chapter 4 - Baculoviruses and Other Occluded Insect Viruses Robert Harrison and Kelli Hoover Chapter 5 - RNA Viruses Infecting Pest Insects Yan Ping Chen, James J. Becnel, and Steven M. Valles Chapter 6 - Fungal Entomopathogens Fernando E. Vega, Nicolai V. Meyling, Janet Jennifer Luangsa-ard, and Meredith Blackwell Chapter 7 - Microsporidian Entomopathogens Leellen F. Solter, James J. Becnel, and David H. Oi Chapter 8 - Bacterial Entomopathogens Juan Luis Jurat-Fuentes and Trevor Jackson Chapter 9 - Wolbachia Infections in Arthropod Hosts Grant Hughes and Jason L. Rasgon Chapter 10 - Protistan Entomopathogens Carlos E. Lange ...

Tropical Grasses

by P. J. Skerman, Fernando Riveros

1990 · Food & Agriculture Org.

The importance of grasslands. The classification and distribution of grasses. The world's major tropical grasslands. Performance and management of natural pasture. The case for improved pastures to replace indigenous species. Pasture improvement by introducing new species. Selection of pasture grass species, seed purchase and storage, and fertilizer needs. Pasture leys. Management of improved grassland in semi-intensive and intensive production systems. Reseeding the arid and semi-arid range. Handling difficult grasses. Grasses for special purposes. Utilization and conservation of forage. The chemical compostion and nutritive value of tropical grasses. The tropical grasses catalogue. Common names of tropical grasses. Common names of other plants. Index. Illustrations.