Generation of satellite tracking profile: Problems and validation algorithms

Unraveling the effects of geometrical parameters on dynamic impact responses of graphene reinforced polymer nanocomposites using coarse-grained molecular dynamics simulations

“…Since no significant deformation of the projectile is found in the microballistic experiments, 50 the diamond projectile is treated as a rigid body during impact. The Langevin thermostat is adopted to control the temperature of the system.…”

“…where E absorbed is the absorbed kinetic energy of the nanocomposites; m is the mass of the diamond projectile; v 0 and v r are the initial impact velocity and the residual velocity of the diamond projectile, respectively. Since no significant deformation of the projectile is found in the microballistic experiments, 50 the diamond projectile is treated as a rigid body during impact. The Langevin thermostat is adopted to control the temperature of the system.…”

Performance Enhancement of a Satellite's Onboard Antenna Tracking Profile using the Ground Station Searching Method

“…As space missions become increasingly complex, movements of onboard antenna must be minimized while still satisfying system requirements; This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. furthermore, they must be reliable, sufficiently flexible to adapt to many mission-dependent changes, and cost effective for mission schedulers [3,4]. In addition, the process of generating commands should effectively reduce the load on ground operators, which is directly related to the automation of highly complex satellite ground systems [5][6][7], a major interest to associated communities worldwide.…”