نتایج جستجو برای: astrophysics
تعداد نتایج: 7512 فیلتر نتایج به سال:
Using the oscillation frequencies of α Cen A recently discovered by Bouchy & Carrier (2001, 2002), the available astrometric, photometric and spectroscopic data, we tried to improve the calibration of the visual binary system α Cen. With the revisited masses of Pour-baix et al. (2002) we do not succeed to obtain a solution satisfying all the seismic observational constraints. Relaxing the const...
Both U.S. and European Air Transportation Systems face substantial challenges in transforming to meet future demand. This paper uses a feedback model to identify and describe key issues in the dynamics of system transition, with particular emphasis on stakeholder cost-benefit dynamics and processes for reviewing and implementing new system capabilities. Understanding of these dynamics is furthe...
Whenever a large group of people are engaged in an activity, communities will form. The nature of these communities depends on the relationship considered. In the group of people who regularly use scholarly literature, a relationship like \person i and person j have cited the same paper" might reveal communities of people working in a particular eld. On this poster, we will investigate the rela...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید