منابع مشابه
American Astronomical Society – Division on Dynamical Astronomy
Currently, there are more than 100 confirmed multiple-planet systems. Moreover, a recent study by Kepler has identified 361 multiple-planet candidate systems. Investigating these systems would give us an important clue in understanding formation and evolution of planetary systems. In such multiple-planet systems, secular interactions among planets could play a significant role in determining th...
متن کاملAmerican Astronomical Society Division on Dynamical Astronomy
[1.01] Asteroids: Radar Observations and Dynamics S. J. Ostro (JPL/Caltech) Radar delay-Doppler measurements are powerful for refining asteroid orbits because they have extremely fine fractional precision and are orthogonal to optical angle astrometry. Radar detection of a newly discovered near-Earth asteroid (NEA) secures its orbit and can add centuries to the interval over which its close Ear...
متن کاملTextbooks.
Course Objectives: 1. Be able to apply concepts and techniques to networked multimedia system design 2. Be able to implement key components of networked multimedia systems 3. Be able to perform fundamental performance analysis on networked multimedia systems
متن کاملAn Analysis of the Ideological Content of Internationally-Developed British and American ELT Textbooks
This study examines the ideological content of six internationally-used ELT textbooks, three British and three American. Applying the theory and procedures of critical discourse analysis (CDA), three aspects of the conversations in the textbooks, i.e. content, relations, and positions were examined. Results suggest that in terms of content, British textbooks tend to entertain the students while...
متن کاملAstronomy during the Early Years of the American Philosophical Society.
Astronomy During the Early Years of the American Reports: Philosophical Society: DR. S. A. MITCHELL .................. 489 First Report of the War Policy Committee of the American Institute of Physics .......... .............. 508 Obituary: Special Articles: Arthur Newell Talbot: PROFESSOR F. E. RICHART. The Biochemical Specificity of Sulfanilamide and Recent Deaths ......... 495 of Other Antib...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1990
ISSN: 0252-9211
DOI: 10.1017/s0252921100086747