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Record Nr. |
UNISA996466841703316 |
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Titolo |
Demographics of exoplanetary systems : lecture notes of the 3rd advanced school on exoplanetary science / / edited by Katia Biazzo, Valerio Bozza, Luigi Mancini, Alessandro Sozzetti |
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Pubbl/distr/stampa |
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Cham, Switzerland : , : Springer, , [2022] |
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©2022 |
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ISBN |
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Descrizione fisica |
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1 online resource (297 pages) : illustrations (some color) |
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Collana |
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Astrophysics and Space Science Library ; ; v.466 |
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Disciplina |
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Soggetti |
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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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Sommario/riassunto |
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This book provides a detailed, state-of-the-art overview of key observational and theoretical aspects of the rapidly developing and highly interdisciplinary field of exoplanet science, as viewed through the lenses of eight world-class experts. It equips readers with a broad understanding of the complex processes driving the formation and the physical and dynamical evolution of planetary systems. It juxtaposes theoretical modeling with the host of techniques that are unveiling the exceptional variety of observed properties of close-in and wide-separation extrasolar planets. By effectively linking ingenious interpretative analyses to the main factors shaping planetary populations, the book ultimately provides the most coherent picture to date of the demographics of exoplanetary systems. It is an essential reference for Ph.D. students and early-stage career researchers, while the scope and depth of its source material also provide excellent cues for graduate-level courses. |
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2. |
Record Nr. |
UNINA9910220094903321 |
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Autore |
Mouton Christopher A. |
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Titolo |
Reducing long-term costs while preserving a robust strategic airlift fleet : options for the current fleet and next-generation aircraft / / Christopher A. Mouton |
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Pubbl/distr/stampa |
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RAND Corporation, 2013 |
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Santa Monica, CA : , : RAND Project Air Force ; , 2012 |
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ISBN |
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Descrizione fisica |
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1 online resource (xxx, 127 pages) : illustrations (some color) |
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Disciplina |
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Soggetti |
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Airlift, Military - Planning - United States |
Galaxy (Jet transport) - Costs |
C-17 (Jet transport) - Costs |
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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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Note generali |
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Bibliographic Level Mode of Issuance: Monograph |
"Prepared for the United States Air Force." |
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Nota di contenuto |
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Introduction Intertheater airlift fleet and retirement schedule Aircraft alternatives Effectiveness methodology and results Cost analysis methodology and results Cost-effectiveness analysis Conclusions |
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Sommario/riassunto |
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The current strategic airlift fleet will be reaching the end of its service life in the next few decades, which has raised concerns about the cost and possible budget spike that would result from the need to recapitalize that fleet. This monograph presents the results of a cost-effectiveness analysis to determine the best way to recapitalize the USAF intertheater (strategic) airlift fleet. The authors examined a broad range of aircraft alternatives, including existing and emerging technologies, and permutations of USAF plans for the current fleet with a view to meeting projected requirements while minimizing life-cycle costs and smoothing out spending peaks. The expected demand for airlift was modeled against the capabilities of each alternative aircraft to form a set of alternative fleet compositions to meet that demand. The authors then estimated the cost for each of the options to determine those that were the most cost-effective. The most cost- |
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effective option involved a highly advanced conceptual design, which represents significant risk. The next most cost-effective options hedge this risk by starting with commercial derivatives as aircraft retire, followed later by a highly advanced aircraft. |
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