Optimal Impulsive Control explores the class of impulsive dynamic optimization problems—problems that stem from the fact that many conventional optimal control problems do not have a solution in the classical setting—which is highly relevant with regard to engineering applications. The absence of a classical solution naturally invokes the so-called extension, or relaxation, of a problem, and leads to the notion of generalized solution which encompasses the notions of generalized control and trajectory; in this book several extensions of optimal control problems are considered within the framework of optimal impulsive control theory. In this framework, the feasible arcs are permitted to have jumps, while the conventional absolutely continuous trajectories may fail to exist. The authors draw together various types of their own results, centered on the necessary conditions of optimality in the form of Pontryagin’s maximum principle and the existence theorems, which shape a substantial body of optimal impulsive control theory. At the same time, they present optimal impulsive control theory in a unified framework, introducing the different paradigmatic problems in increasing order of complexity. The rationale underlying the book involves addressing extensions increasing in complexity from the simplest case provided by linear control systems and ending with the most general case of a totally nonlinear differential control system with state constraints. The mathematical models presented in Optimal Impulsive Control being encountered in various engineering applications, this book will be of interest to both academic researchers and practising engineers.
Optimal Impulsive Control explores the class of impulsive dynamic optimization problems—problems that stem from the fact that many conventional optimal control problems do not have a solution in the classical setting—which is highly relevant with regard to engineering applications. The absence of a classical solution naturally invokes the so-called extension, or relaxation, of a problem, and leads to the notion of generalized solution which encompasses the notions of generalized control and trajectory; in this book several extensions of optimal control problems are considered within the framework of optimal impulsive control theory. In this framework, the feasible arcs are permitted to have jumps, while the conventional absolutely continuous trajectories may fail to exist. The authors draw together various types of their own results, centered on the necessary conditions of optimality in the form of Pontryagin’s maximum principle and the existence theorems, which shape a substantial body of optimal impulsive control theory. At the same time, they present optimal impulsive control theory in a unified framework, introducing the different paradigmatic problems in increasing order of complexity. The rationale underlying the book involves addressing extensions increasing in complexity from the simplest case provided by linear control systems and ending with the most general case of a totally nonlinear differential control system with state constraints. The mathematical models presented in Optimal Impulsive Control being encountered in various engineering applications, this book will be of interest to both academic researchers and practising engineers.
Designed as a survey and focused on key examples and movements arranged chronologically from 1903 to 2003, this is the first comprehensive history of modern architecture in Latin America in any language. Runner-up, University Co-op Robert W. Hamilton Book Award, 2015 Modern Architecture in Latin America: Art, Technology, and Utopia is an introductory text on the issues, polemics, and works that represent the complex processes of political, economic, and cultural modernization in the twentieth century. The number and types of projects varied greatly from country to country, but, as a whole, the region produced a significant body of architecture that has never before been presented in a single volume in any language. Modern Architecture in Latin America is the first comprehensive history of this important production. Designed as a survey and focused on key examples/paradigms arranged chronologically from 1903 to 2003, this volume covers a myriad of countries; historical, social, and political conditions; and projects/developments that range from small houses to urban plans to architectural movements. The book is structured so that it can be read in a variety of ways—as a historically developed narrative of modern architecture in Latin America, as a country-specific chronology, or as a treatment of traditions centered on issues of art, technology, or utopia. This structure allows readers to see the development of multiple and parallel branches/historical strands of architecture and, at times, their interconnections across countries. The authors provide a critical evaluation of the movements presented in relationship to their overall goals and architectural transformations.
The current book focuses on Mora de Castilla (Rubus glaucus Benth.). It explores aspects, such as origin, phenology, propagation, floral and fruit morphology, arthropod visitors, pollination mechanisms, propagation methods, chromosome number, fruit development, breeding, morphological diversity, and the impact of climate change. It includes novel data about plant phenology, flowering, insect visitors, seed germination, fruit morphology, and allometric relationships. This work includes an in-depth review of the most recently published information on the topic. Mora de Castilla is an economically important fruit crop from the Andes. It has been crossed with other Rubus species due to its high yield and everbearing habit. Currently, it is an economically important plant. It has been hybridized with other Rubus species producing new and better-quality hybrids This book contains numerous photographs selected by the author to provide the reader with detailed information about the plant ́s morphological features and arthropod visitors.
Lula is among the greatest political figures in Brazilian history. The only president in the country with a working-class background, combined with a party that was profoundly original in its roots, he exercised charismatic power and influence in a more lasting way than any other public figure in the republican period. Since 2011, Fernando Morais, one of Brazil's leading writers, has gained direct, frank and frequent access to Lula. To these dozens of hours of testimonies, he has added a reporter's flair and captivating prose to compose a biography that paints a picture in all its grandeur and complexity. In a narrative that makes use of flashforwards and flashbacks to maintain an electrifying pace, Morais goes from Lula's childhood to the annulment of his convictions, in 2021 - passing through the new unionism, the ABC strikes, the foundation of the PT and the first election campaign.
This work will be volume 124 in the Flora Neotropica Monograph book Series, Lawrence M. Kelly (Editor-in-Chief). Flora Neotropica volumes provide taxonomic treatments of plant groups or families growing in the Americas between the Tropic of Cancer and the Tropic of Capricorn. This monograph on Panicum (Poaceae), known as panicgrass, was written by the world-leading authority on this plant group. A total of one genus and 63 species are described. It also includes information on conservation, phylogenetic relationships, taxonomic history, ecology, cytology, and anatomy, among other topics. This is the first comprehensive volume on this topic since the 1920s and is lavishly illustrated with line drawings, black and white photographs, and distribution maps.
A university must produce and organize knowledge. Indeed, this fact does not seem to suffer disputes. However, what is the knowledge that a university produces and disseminates? In this short essay, which serves as a conceptual basis for a wide-ranging epistemological discussion, the authors propose questions about knowledge, whose answers have been sought by the contemporary academy. However, the research is more focused on questions than on answers. The important thing is to ask the right questions. We invite the members of the academic community to participate in this theoretical reflection on knowledge, in order to support our research activities, extension, teaching and graduate studies. The growing and unstable transformations the world has been going through are reflected directly in production, recording and distribution of knowledge, not to mention the value changes that the traditional knowledge has suffered, as it is hastily abandoned by unfounded news. Revisiting the concepts that form the bases of our science serves to verify their validity, effectiveness and socioeconomic, political and cultural importance. Courage to re-examine openly the beliefs that we embrace in the practice of our sciences is the virtue that defines, par excellence, the academic researcher. “If Biology can save the humans and the Earth, the arts can save the soul...” (Luiz Fernando Pereira) “When I examine myself and my methods of thought, I come to the conclusion that the gift of fantasy has meant more to me than any talent for abstract, positive thinking.” A. Einstein.
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