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Record Nr. |
UNINA9910823089703321 |
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Titolo |
The environmental debate : a documentary history with timeline, glossary, and appendices / / edited by Peninah Neimark and Peter Rhoades Mott |
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Pubbl/distr/stampa |
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Amenia, New York : , : Grey House Publishing, , [2017] |
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�2017 |
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ISBN |
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1-78684-674-8 |
1-68217-551-0 |
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Edizione |
[Third edition.] |
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Descrizione fisica |
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1 online resource (xxxiii, 347 pages) : illustrations |
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Collana |
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Disciplina |
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Soggetti |
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Environmentalism - United States - History |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Foreword -- Preface -- Introduction -- Part I. Foundations of American environmental thought and action -- Part II. Politicians, naturalists, and artists in the new nation, 1776-1839 -- Part III. The origins of environmental activism, 1840-1889 -- Part IV. The roots of the conservation movement, 1890-1919 -- Part V. Rethinking our relationship to nature, 1920-1959 -- Part VI. The heyday of the environmental movement, 1960-1979 -- Part VII. Confronting economic and social realities, 1980-1999 -- Appendix I: Significant dates in American environmental history -- Appendix II: Major conservation and environmental organizations -- Glossary -- Further readings -- Copyright acknowledgments. |
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Sommario/riassunto |
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This unique collection of Primary Documents examines the evolution of concern about environmental degradation, pollution, climate change, and resource conservation in America from the Colonial period the present. |
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2. |
Record Nr. |
UNINA9910767547003321 |
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Autore |
Colomé Adrià |
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Titolo |
Reinforcement learning of bimanual robot skills / / Adrià Colomé, Carme Torras |
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Pubbl/distr/stampa |
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Cham : , : Springer International Publishing : , : Imprint : Springer, , 2020 |
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ISBN |
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Edizione |
[1st edition 2020.] |
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Descrizione fisica |
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1 online resource (XIX, 182 p. 64 illus., 57 illus. in color.) |
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Collana |
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Springer Tracts in Advanced Robotics, , 1610-7438 ; ; 134 |
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Disciplina |
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Soggetti |
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Machine learning |
Robots - Dynamics |
Robots - Kinematics |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di contenuto |
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Introduction -- State of the art -- Inverse kinematics and relative arm positioning -- Robot compliant control -- Preliminaries -- Sampling efficiency in learning robot motion -- Dimensionality reduction with MPs -- Generating and adapting ProMPs -- Conclusions. |
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Sommario/riassunto |
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This book tackles all the stages and mechanisms involved in the learning of manipulation tasks by bimanual robots in unstructured settings, as it can be the task of folding clothes. The first part describes how to build an integrated system, capable of properly handling the kinematics and dynamics of the robot along the learning process. It proposes practical enhancements to closed-loop inverse kinematics for redundant robots, a procedure to position the two arms to maximize workspace manipulability, and a dynamic model together with a disturbance observer to achieve compliant control and safe robot behavior. In the second part, methods for robot motion learning based on movement primitives and direct policy search algorithms are presented. To improve sampling efficiency and accelerate learning without deteriorating solution quality, techniques for dimensionality reduction, for exploiting low-performing samples, and for contextualization and adaptability to changing situations are proposed. In sum, the reader will find in this comprehensive exposition the |
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relevant knowledge in different areas required to build a complete framework for model-free, compliant, coordinated robot motion learning. |
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