نتایج جستجو برای: fireworks
تعداد نتایج: 533 فیلتر نتایج به سال:
Air pollution is a major public health threat that associated with asthma, cardiovascular disease, respiratory disease and all-cause mortality. Among the most important acute air events occurring each year are celebrations involving fireworks, such as 4th of July holiday in United States. In this community-engaged study, academic partners residents collaborated to collect indoor outdoor PM2.5 c...
We present a Ks-selected catalog, dubbed FIREWORKS, for the Chandra Deep Field South (CDFS) containing photometry in U38, B435, B, V , V606, R, i775, I, z850, J , H , Ks, [3.6μm], [4.5μm], [5.8μm], [8.0μm], and the MIPS [24μm] band. The imaging has a typical K s,AB limit of 24.3 mag (5σ) and coverage over 113 arcmin in all bands and 138 arcmin in all bands but H . We cross-correlate our catalog...
We study the trajectory of dense projectiles subjected to gravity and drag at large Reynolds number. We show that two types of trajectories can be observed: if the initial velocity is smaller than the terminal velocity of free fall, we observe the classical Galilean parabola: if it is larger, the projectile decelerates with an asymmetric trajectory first drawn by Tartaglia, which ends with a ne...
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