Results 111 to 120 of about 90,052 (317)

Simulation of Helical-Baffle Inlet Structure Cyclone Separator

Separations
In developing spacecraft dust environment testing equipment, cyclone separators serve as critical particulate separation devices. To optimize cyclone performance, this study investigates the impact of inlet configurations on internal flow fields.
Guohua Li, Jie Gong, Zijuan Wang, Ran Liu   +3 more
doaj   +1 more source

A dynamical systems approach to micro spacecraft autonomy

, 2010
The drive toward reducing the size and mass of spacecraft has put new constraints on the computational resources available for control and decision making algorithms.
McInnes, Colin, Brown, Blair, McInnes, C.R.   +2 more
core  

Global MHD simulation of flux transfer events at the high-latitude magnetopause observed by the cluster spacecraft and the SuperDARN radar system [PDF]

, 2008
A global magnetohydrodynamic numerical simulation is used to study the large-scale structure and formation location of flux transfer events (FTEs) in synergy with in situ spacecraft and ground-based observations. During the main period of interest on the
Daum, P., Fazakerley, A., Lester, M., Daly, P., Wild, J. A., Wild, James A., Daly, P. W., Fazakerley, A. N., Wild, J., Woodfield, E., Daum, Patrick, Penz, T., Reme, H., Woodfield, E. E.   +13 more
core   +1 more source

The EU Space Act's Global Reach: Legal Considerations on the Envisaged Application to Non‐EU Operators

Global Policy, EarlyView.
ABSTRACT This article examines what is known at this stage, before the envisaged publication of the legislative proposal by the European Commission in March/April 2025, about the European Union's Space Act, focusing on its potential application to non‐EU operators.
Ingo Baumann, Katharina Prall
wiley   +1 more source

Autonomy at Levels for Spacecraft

CoRR
Autonomy at Levels is the idea that autonomy should be embedded within and throughout a spacecraft. Using Systems Engineering methods a spacecraft is typically decomposed into systems, subsystems, assemblies, components, and so on. All these decomposition levels within all the spacecraft's systems, could and should have autonomy elements built in. As a
Daniel Baker, Jeremy Wojcik, Sean Phillips   +2 more
openaire   +2 more sources

Manoeuvre Planning Architecture for the Optimisation of Spacecraft Formation Flying Reconfiguration Manoeuvres [PDF]

, 2010
Formation flying of multiple spacecraft collaborating toward the same goal is fast becoming a reality for space mission designers. Often the missions require the spacecraft to perform translational manoeuvres relative to each other to achieve some ...
Burgon, Ross
core  

Self‐supervised Learning of Fine‐to‐Coarse Cuboid Shape Abstraction

Computer Graphics Forum, EarlyView.
Abstract The abstraction of 3D objects with simple geometric primitives like cuboids allows us to infer structural information from complex geometry. It is important for 3D shape understanding, structural analysis and geometric modeling. We introduce a novel fine‐to‐coarse self‐supervised learning approach to abstract collections of 3D shapes.
Gregor Kobsik, Morten Henkel, Yanjiang He, Victor Czech, Tim Elsner, Isaak Lim, Leif Kobbelt   +6 more
wiley   +1 more source

How iteration frequencies affect project uncertainty and risk ‐ An empirically elaborated model

Decision Sciences, EarlyView.
Abstract Iterative approaches have gained prominence in new product development (NPD) projects in response to increasingly dynamic and turbulent business environments. In this article, we study how iteration frequency—that is, the rhythm at which development teams revisit and test comprehensive products—affects an NPD project's uncertainty and risk. We
Timo Kalmes, Fabian J. Sting
wiley   +1 more source

Materials Characterization at Utah State University: Facilities and Knowledgebase of Electronic Properties of Materials Applicable to Spacecraft Charging

, 2003
In an effort to improve the reliability and versatility of spacecraft charging models designed to assist spacecraft designers in accommodating and mitigating the harmful effects of charging on spacecraft, the NASA Space Environments and Effects (SEE ...
Corbridge, Jodie, Zavyalov, V. V., Dennison, John R., Kite, J. T., Thomson, C. D.   +4 more
core  

Research Direction and Science Evaluation: The Role of Coherence and Alignment

Journal of Economics &Management Strategy, EarlyView.
ABSTRACT The decisions of funding agencies greatly influence the direction of scientific research; however, our understanding of how applicants' research directions affect the selection process remains limited. In this study, we investigate how a project's coherence with a scientist's previous work and its alignment with current scientific trends ...
Charles Ayoubi, Sandra Barbosu, Michele Pezzoni, Fabiana Visentin   +3 more
wiley   +1 more source