Satellite measurements are often compared with higher-precision ground-based measurements as part of validation efforts. The satellite soundings are rarely perfectly coincident in space and time with the ground-based measurements, so a colocation methodology is needed to aggregate “nearby” soundings into what the instrument would have seen at the location and time of interest. We are particular...

Generally, the path search algorithm based on the shortest distance does not guarantee the provision of stable satellite services. The path search algorithm based on the received radio sensitivity has disadvantage such as the increase of its distance. This paper proposes a compound weight path search algorithm for satisfies the received radio sensitivity. It also prevents the increase of the di...

Current trend in telecommunications is “broadband” and “ubiquitous.” To achieve this goal, satellite communications systems are expected to play an important role in cooperation with terrestrial communications systems. Along with the advancement of optical fiber transmission systems, the role of satellite communications was dramatically changed from long distance transmission to various applica...

the aim of this study was to investigate the effect of 8 weeks of selective exercise activity and estrogen supplement on satellite cells in ovariectomized sprague-dawley rats. at first, subjects were ovariectomized and after one month of complete recovery, they were randomly divided into four groups: control, exercise activity, estrogen supplement, and exercise and estrogen supplement. only exe...

We investigated the orbital evolution of satellite galaxies using numerical simulations. It has been long believed that the orbit suffers circularization due to the dynamical friction from the galactic halo during orbital decay. This circularization was confirmed by numerous simulations where dynamical friction is added as external force. However, some of the resent N -body simulations demonstr...

gravity recovery and climate experiment (grace) satellite gravimetry mission launched in march 2002 based on its twin gravimetric satellites makes application of both high-low (hl) and law-low (ll) gravimetric techniques possible. the ll is based on satellite-to-satellite tracking (sst) via the one way two frequencies k-band-ranging between the two grace satellites. as a result of combination o...

Conventionally, the identification of Tropical Cyclones (TCs) has been highly dependent on subjective human judgment applied to vast amounts of data extracted from satellite images. The most popular approach to comparing two given TCs is to measure the distance between various contour points of the TC extracted from a satellite image. However, this measure has a very high computational cost as ...

We present a deep optical survey of Uranus’ Hill sphere for small satellites. The Subaru 8-m telescope was used to survey about 3.5 square degrees with a 50% detection efficiency at limiting red magnitude mR = 26.1 mag. This magnitude corresponds to objects that are about 7 km in radius (assuming an albedo of 0.04). We detected (without prior knowledge of their positions) all previously known o...

Satellite communication is one of the most popular next generation communication technologies for global communication networks in parallel to terrestrial communication networks. In modern age military intelligence, navigation & positioning, weather forecasting, digital video Broadcasting (DVB), and broadband internet services, are the few demanding applications of Satellite communication. Alth...