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| Author | : Farzad Kamalabadi |
| Publisher | : |
| Total Pages | : 256 |
| Release | : 2001 |
| Genre | : Space plasmas |
| ISBN | : |
| Author | : Robert F. Pfaff |
| Publisher | : American Geophysical Union |
| Total Pages | : 350 |
| Release | : 1998-02-04 |
| Genre | : Science |
| ISBN | : 0875900852 |
Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 102. Space plasma measurements are conducted in a hostile, remote environment. The art and science of measurements gathered in space depend therefore on unique instrument designs and fabrication methods to an extent perhaps unprecedented in experimental physics. In-situ measurement of space plasmas constitutes an expensive, unforgiving, and highly visible form of scientific endeavor.
| Author | : National Academies of Sciences, Engineering, and Medicine |
| Publisher | : National Academies Press |
| Total Pages | : 254 |
| Release | : 2015-09-21 |
| Genre | : Science |
| ISBN | : 0309373085 |
Active remote sensing is the principal tool used to study and to predict short- and long-term changes in the environment of Earth - the atmosphere, the oceans and the land surfaces - as well as the near space environment of Earth. All of these measurements are essential to understanding terrestrial weather, climate change, space weather hazards, and threats from asteroids. Active remote sensing measurements are of inestimable benefit to society, as we pursue the development of a technological civilization that is economically viable, and seek to maintain the quality of our life. A Strategy for Active Remote Sensing Amid Increased Demand for Spectrum describes the threats, both current and future, to the effective use of the electromagnetic spectrum required for active remote sensing. This report offers specific recommendations for protecting and making effective use of the spectrum required for active remote sensing.
| Author | : |
| Publisher | : |
| Total Pages | : 488 |
| Release | : 1995 |
| Genre | : Aeronautics |
| ISBN | : |
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
| Author | : Allen M. Larar |
| Publisher | : SPIE-International Society for Optical Engineering |
| Total Pages | : 530 |
| Release | : 2002 |
| Genre | : Science |
| ISBN | : |
| Author | : National Research Council |
| Publisher | : National Academies Press |
| Total Pages | : 347 |
| Release | : 1991-02-01 |
| Genre | : Science |
| ISBN | : 0309043832 |
This volume contains working papers on astronomy and astrophysics prepared by 15 non-National Research Council panels in areas ranging from radio astronomy to the status of the profession.
| Author | : |
| Publisher | : |
| Total Pages | : 920 |
| Release | : 1998 |
| Genre | : Aeronautics |
| ISBN | : |
| Author | : Robert F. Pfaff |
| Publisher | : American Geophysical Union |
| Total Pages | : 344 |
| Release | : 1998-02-04 |
| Genre | : Science |
| ISBN | : |
Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 103. Space plasma measurements are conducted in a hostile, remote environment. The art and science of measurements gathered in space depend therefore on unique instrument designs and fabrication methods to an extent perhaps unprecedented in experimental physics. In-situ measurement of space plasmas constitutes an expensive, unforgiving, and highly visible form of scientific endeavor.
| Author | : M. J. Herbst |
| Publisher | : |
| Total Pages | : 18 |
| Release | : 1982 |
| Genre | : |
| ISBN | : |
Use of a locally embedded tracer in laser-irradiated solid targets yields a localized source of diagnostic x-ray line radiation in the blowoff plasma. This technique potentially eliminates problems of chord-integration over regions of varying density and temperature in an inhomogeneous plasma, and reduces complications due to plasma opacity effects in the interpretation of spectra. Spectra obtained in an experimental test of this new technique are of a quality superior to those obtained from standard laser-produced plasmas, and should provide the best tests to date of spectroscopic models for these plasma conditions. (Author).
| Author | : Mickaël Playez (Franck, Emmanuel) |
| Publisher | : |
| Total Pages | : 163 |
| Release | : 2006 |
| Genre | : |
| ISBN | : |
During entry or aero-capture in the atmosphere of the Saturn's satellite Titan, largeamounts of radiation are produced in the shock layer of a spacecraft. The design of theheat shield of this vehicle requires a precise assessment of the radiative heat flux impingingon it. We propose in this study an analysis of the radiation emitted in the spectral range350-1000 nm by a high temperature gas mixture with a composition representative of theTitan atmosphere composition. The plasma is produced in an Inductively Coupled Plasmawind tunnel. Emission spectroscopy measurements are performed for two different pressureconditions, 300 and 23 mbar, in order to produce equilibrium and non-equilibrium plasmas.The modelling of the plasma emission at equilibrium is performed and shown to agree tothe measured spectra on a absolute scale for the high-pressure case. The use of the samemodel for the analysis of the low-pressure case provides evidence of departure from equilibrium.Limitations of the implemented procedure are observed. They are due to unresolved fluctuations of the plasma source.
