it is crucial to monitor the quality of raw materials used in asphalt production. This includes testing aggregates for size, shape, and cleanliness, as well as evaluating the properties of the binder such as viscosity and
which includes academic institutions, research organizations, and non-governmental entities, plays a crucial role in technological innovation and scientific research. These organizations contribute to the advancement of satellite technology through experimental missions, educational initiatives, and specialized rese...
(ADR)mission,to mitigate the space debris density and stabilize the space debris environment,has been considered as a most effective method.In this paper,a novel two-level optimization strategy for multi-debris removal mission in LEO is proposed,which includes the low-level and high-level ...
The system also includes a communicatio... LEVY Larry J.,THOMPSON Thomas,HOHMAN David S.,... 被引量: 17发表: 2001年 Real-Time Autonomous Orbit Determination of LEO Satellites using GPS This paper describes an investigation, carried out for the UK Defence and Evaluation Research Agency (DERA)...
Figure 2 illustrates the LEO-enhanced GNSS/INS framework, which includes all historical observation information and states. This is one of the main differences between the LEO-enhanced EKF GNSS/INS. The study uses the INS factor and the ambiguity factor to associate the front and back epoch ...
Denebola also exhibits a strong infrared excess, which suggests that it may have a circumstellar debris disk of dust in its orbit. The star belongs to the IC 2391 supercluster, a stellar association whose member stars share a common motion through space, but are not gravitationally bound. Other...
More and more low earth orbit (LEO) satellites are being launched into space. The impact on earth-bound logistics could be, quite simply, out of this world
The low-earth-orbit (LEO) telecommunication constellation network is foreseen as a merging interconnection method for future sixth-generation (6G) systems. In this paper, by exploring the constellati...
Other stars of interest in Leo include Zosma (“Hip of the Lion”), Ras Elased Australis (“Head of the Lion”), Chertan (“The Rib”), Subra (“Head of the Lion”), and Al Minliar al Asad (“Muzzle of the Lion”). The constellation also includes Wolf 359, a red dwarf star ...
To achieve this, we formulate a nonlinear integer programming (NLIP) problem and propose the LEO satellites selection-based computation offloading (LSSBCO) algorithm to solve it, which includes the shortest aircraft–satellite distance based access satellite selection (ASS-SD) algorithm and the ...