Results 31 to 40 of about 113,868 (281)

Inflatable structures for Mars Base 10 [PDF]

open access: yes, 2012
A permanent manned settlement on the Martian surface requires the use of advanced technology concepts in order to become technically and financially feasible.
Doule, Ondrej, Sinn, Thomas
core   +1 more source

On the project of complex scientific methodological documents on teaching astronomy in a secondary school

open access: yesВісник Астрономічної школи, 2001
The complex contains the conception of astronomical education in 12-years secondary school, curricula of two levels in astronomy; curricula of some optional subjects in astronomy and astronautics.
Yu. V. Aleksandrov   +5 more
doaj   +1 more source

Application of quasi-homogeneous anisotropic laminates in grid-stiffened panel design [PDF]

open access: yes, 2012
Composite laminates are derived for standard configurations with quasi-homogeneous anisotropic properties, whereby in-plane and out-of-plane stiffness properties are concomitant.
Williams F. W.   +6 more
core   +1 more source

Pressure flow field and inlet flow distortion metrics reconstruction from velocity data [PDF]

open access: yes, 2016
Complex engine intakes are susceptible to unsteady flow distortions that may compromise the propulsion system operability. Hence, the need for high spatial and temporal resolution flow information is essential to aid the development of distortion ...
Frascella, Michele   +3 more
core   +2 more sources

Distributing Three-Dimensional Aerodynamic Load to Fem Nodes [PDF]

open access: yesMATEC Web of Conferences, 2019
Aiming at the requirement of the load conversion in aeronautics and astronautics static strength analysis, a three-dimensional aerodynamic load equivalent distribution method based on least squares is proposed.
Weimin Sun
doaj   +1 more source

Extension-twist coupled laminates for aero-elastic compliant blade design [PDF]

open access: yes, 2012
A definite list of laminate configurations with extension-twisting (and shearing-bending) coupling is derived for up to 21 plies of identical thickness.
York, C.B.
core   +1 more source

An Application of Point Pattern Matching in Astronautics

open access: yesJournal of symbolic computation, 1994
We consider a point pattern matching problem occuring in astronautics: Given are pictures from a camera of unknown orientation, showing a section of the starry sky.
Gerald Weber, Lars Knipping, H. Alt
semanticscholar   +1 more source

Virtual Integration Platforms (VIP) –A Concept for Integrated and Interdisciplinary Air Transportation Research and Assessment [PDF]

open access: yes, 2011
The paper descibes a new methodology for a holistic development of air transportation concepts. The Virtual Integration Plattform (VIP) concept is based on an IT tool chain as well as human collaborative methods to deal with complex systems.
Gollnick, Volker   +3 more
core   +1 more source

A Feature-Map-Based Method for Explaining the Performance Degradation of Ship Detection Networks

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
The unknowability of the inner workings limits the magnitude of performance improvement of ship target detection networks in synthetic aperture radar (SAR) images under Gaussian noise.
Peng Jia   +5 more
doaj   +1 more source

Computing the set of Epsilon-efficient solutions in multiobjective space mission design [PDF]

open access: yes, 2011
In this work, we consider multiobjective space mission design problems. We will start from the need, from a practical point of view, to consider in addition to the (Pareto) optimal solutions also nearly optimal ones.
Carlos A. Coello Coello   +11 more
core   +1 more source

Home - About - Disclaimer - Privacy