نتایج جستجو برای: sounding rocket

تعداد نتایج: 8858  

Journal: :Journal of geomagnetism and geoelectricity 1993

2004
Stephan R. McCandliss Warren Moos Jeffrey W. Kruk William P. Blair Ivan Baldry

Shull et al.4 have asserted that the contribution of stars, relative to quasars, to the metagalactic background radiation that ionizes most of the baryons in the universe remains almost completely unknown at all epochs. The potential to directly quantify this contribution at low redshift has recently become possible with the identification by GALEX of large numbers of sparsely distributed faint...

Journal: :علوم و فناوری فضایی 0
m. a. farsi a. a. eslami r. gorgin

separation system is one of the most important systems in rockets. the influence of this system on mission success cannot be ignored. in this paper, reliability of a sounding rocket separation system is determined using block diagram and fmea . this system is based on the flexible linear shape charge cross-section and a spring mechanism to accelerate separation. in this investigation, the relia...

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