Results 111 to 120 of about 383,072 (432)
Performance Prediction of Hatch Cover Drive Assembly in Space Environment
IEEE Access, 2019 The performance of the Hatch Cover Drive Assembly operated in space is quite important for aircrafts. However, it is hard to experimental studies in space.
Pan Bo +6 more
doaj +1 more source
Distributed Adaptive Attitude Synchronization of Multiple Spacecraft
, 2011 This paper addresses the distributed attitude synchronization problem of multiple spacecraft with unknown inertia matrices. Two distributed adaptive controllers are proposed for the cases with and without a virtual leader to which a time-varying ...
A. Abdessameud +26 more
core +1 more source
Journal of Spacecraft and Rockets, 2019 This paper introduces R-selected spacecraft as a field of study that draws from concepts in ecology, and introduces the Monarch spacecraft as a case study for a system designed in accordance with the principles of this field. The Monarch is a 2.5-gram spacecraft that is the first to trade quantity, rather than cost, for low mission risk.
Adams, Van, Peck, Mason
openaire +4 more sources
Mass Spectrometry Reviews, EarlyView.ABSTRACT Complex organic mixtures are found in many areas of research, such as energy, environment, health, planetology, and cultural heritage, to name but a few. However, due to their complex chemical composition, which holds an extensive potential of information at the molecular level, their molecular characterization is challenging.
Charlotte Mase +5 more
wiley +1 more source
International Journal of Aerospace EngineeringControl moment gyro (CMG) can produce microvibration and influence the performance of sensitive instruments aboard the spacecraft. This article is aimed at constructing the microvibration transmission model of a large-scale CMG incorporating the ...
Jin You, Wei Zhu, Hao Wang
doaj +1 more source
Effect of Atomic Oxygen on Electric Properties of Graphene Films
Cailiao gongcheng, 2017 The resistance and the surface morphology of the graphene films were studied after atomic oxygen exposure. The graphene films can be etched away during atomic oxygen exposure, the resistance of graphene films decreases at first and then increases.
LIU Yu-ming +4 more
doaj +1 more source
Fractal patterns in fractionated spacecraft [PDF]
, 2011 Multi spacecraft architectures have been addressed in response to the demand for flexible architectures with high reliability and reduced costs compared to traditional monolithic spacecraft.
Punzo, Giuliano
core
Polymer Composites, EarlyView.Use of ROS TP skins in sandwich composite structures. Abstract Despite the advantages of recycled randomly oriented strand (ROS) composites over recycled grinded ones, the warpage issue hinders their adaptation in the industry due to tolerance requirements.
Yağız Özbek +5 more
wiley +1 more source
4D printing and its key technologies
Cailiao gongcheng, 2019 4D printing can be defined as the evolution of 3D printing structure in terms of shape, performance and function. It has time dependence, printer independence and predictability, and its smart dynamic performance creates promising capabilities and broad ...
SHEN Zi-cai +4 more
doaj +1 more source
Nuclear radiation problems, unmanned thermionic reactor ion propulsion spacecraft [PDF]
, 1972 A nuclear thermionic reactor as the electric power source for an electric propulsion spacecraft introduces a nuclear radiation environment that affects the spacecraft configuration, the use and location of electrical insulators and the science ...
Mondt, J. F. +2 more
core +1 more source