Catalogue Bibliothèque de L'IMIST/CNRST › Résultats de la recherche pour 'ccl=su:Science/Mathematics and au:Council, National Research.'

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		Technology development for army unmanned ground vehicles / par Technology,, Committee on Army Unmanned Ground Vehicle. Publication : [S.l.] : National Academies Press, 2002 . 180 p. ; , Unmanned ground vehicles (UGV) are expected to play a key role in the Army's Objective Force structure. These UGVs would be used for weapons platforms, logistics carriers, and reconnaissance, surveillance, and target acquisition among other things. To examine aspects of the Army's UGV program, assess technology readiness, and identify key issues in implementing UGV systems, among other questions, the Deputy Assistant Secretary of the Army for Research and Technology asked the National Research Council (NRC) to conduct a study of UGV technologies. This report discusses UGV operational requirements, current development efforts, and technology integration and roadmaps to the future. Key recommendations are presented addressing technical content, time lines, and milestones for the UGV efforts. 28 cm. Date : 2002 Disponibilité : Exemplaires disponibles: La bibliothèque des sciences de l'ingénieur (1), Réserver Ajouter au panier (Supprimer)
		The geological record of ecological dynamics : understanding the biotic effects of future environmental change / par Dynamics,, Committee on the Geologic Record of Biosphere. Publication : [S.l.] : National Academies Press, 2005 . 216 p. ; , In order to answer important questions about ecosystems and biodiversity, scientists can look to the past geological record which includes fossils, sediment and ice cores, and tree rings. Because of recent advances in earth scientists' ability to analyze biological and environmental information from geological data, the National Science Foundation and the U.S. Geological Survey asked a National Research Council (NRC) committee to assess the scientific opportunities provided by the geologic record and recommend how scientists can take advantage of these opportunities for the nation's benefit. The committee identified three initiatives for future research to be developed over the next decade: use the geological record as a 'natural laboratory' to explore changes in living things under a range of past conditions; use the record to better predict the response of biological systems to climate change; and, use geologic information to evaluate the effects of human and non-human factors on ecosystems. The committee also offered suggestions for improving the field through better training, improved databases, and additional funding. 23 cm. Date : 2005 Disponibilité : Exemplaires disponibles: La bibliothèque des Sciences Exactes et Naturelles (1), Réserver Ajouter au panier (Supprimer)
		The Quarantine and certification of martian samples / par Exploration,, Committee on Planetary and Lunar. Publication : [S.l.] : National Academies Press, 2002 . 92 p. ; , Paperback. 27 cm. Date : 2002 Disponibilité : Exemplaires disponibles: La bibliothèque des Sciences Exactes et Naturelles (1), Réserver Ajouter au panier (Supprimer)
		The Sun to the earth -- and beyond : a decadal research strategy in solar and space physics / par Committee,, Solar and Space Physics Survey. Publication : [S.l.] : National Academies Press, 2003 . 196 p. ; , The sun is the source of energy for life on earth and is the strongest modulator of the human physical environment. In fact, the Sun's influence extends throughout the solar system, both through photons, which provide heat, light, and ionization, and through the continuous outflow of a magnetized, supersonic ionized gas known as the solar wind. While the accomplishments of the past decade have answered important questions about the physics of the Sun, the interplanetary medium, and the space environments of Earth and other solar system bodies, they have also highlighted other questions, some of which are long-standing and fundamental. "The Sun to the Earth - and Beyond" organizes these questions in terms of five challenges that are expected to be the focus of scientific investigations in solar and space physics during the coming decade and beyond. 26 cm. Date : 2003 Disponibilité : Exemplaires disponibles: La bibliothèque des Sciences Exactes et Naturelles (1), Réserver Ajouter au panier (Supprimer)
		Thinking strategically : the appropriate use of metrics for the climate change science program / par Research,, Committee on Metrics for Global Change. Publication : [S.l.] : National Academies Press, 2005 . 162 p. ; , The Climate Change Science Program (CCSP) and its predecessor U.S. Global Change Research Program have sponsored climate research and observations for nearly 15 years, yet, the overall progress of the program has not been measured systematically. Metrics - a system of measurement that includes the item being measured, the unit of measurement, and the value of the unit - offers a tool for measuring such progress; improving program performance; and demonstrating program successes to Congress, the Office of Management and Budget, and the public. This report lays out a framework for creating and implementing metrics for the CCSP. A general set of metrics provides a starting point for identifying the most important measures, and the principles provide guidance for refining the metrics and avoiding unintended consequences. 23 cm. Date : 2005 Disponibilité : Exemplaires disponibles: La bibliothèque des Sciences Exactes et Naturelles (1), Réserver Ajouter au panier (Supprimer)
		Use of lightweight materials in 21st century army trucks / par Trucks,, Committee on Lightweight Materials for 21st Century Army. Publication : [S.l.] : National Academies Press, 2003 . 112 p. ; , In order to achieve the Army's envisioned Objective Force related to deployability, transportability, and mobility, the Committee on Lightweight Materials for the 21st Century Army Trucks was asked to identify research and technology development opportunities related to the introduction of new lightweight structural materials for light medium and heavy Army trucks. 27 cm. Date : 2003 Disponibilité : Exemplaires disponibles: La bibliothèque des sciences de l'ingénieur (1), Réserver Ajouter au panier (Supprimer)