Results 11 to 20 of about 125,489 (316)

Numerical simulation and experimental study of thrust air bearings with multiple orifices [PDF]

, 2013
http://dx.doi.org/10.1016/j.ijmecsci.2013.03.006The objective of this paper is to provide a numerical simulation and an experimental study in order to assess stiffness and damping characteristics of thrust air bearings with multiple orifices.
A. Ambari, AMBARI, Abdelhak, K. Diop, CHARKI, Abdérafi, S. Champmartin, CHAMPMARTIN, Stephane, A. Charki, DIOP, Khadim   +7 more
core   +1 more source

Displaced geostationary orbits using hybrid low-thrust propulsion [PDF]

, 2012
In this paper, displaced geostationary orbits using hybrid low-thrust propulsion, a complementary combination of Solar Electric Propulsion (SEP) and solar sailing, are investigated to increase the capacity of the geostationary ring that is starting to ...
Biggs, James, Jeannette Heiligers, BIGGS, JAMES DOUGLAS, Heiligers, Jeannette, McInnes, Colin, Ceriotti, Matteo, Heiligers, J., Ceriotti, M., Mcinnes, Colin R., Biggs, J.D., Colin R. McInnes, James D. Biggs, Matteo Ceriotti, McInnes, C.R.   +13 more
core   +1 more source

Design of optimal Earth pole-sitter transfers using low thrust propulsion [PDF]

, 2011
Recent studies have shown the feasibility of an Earth pole-sitter mission using low-thrust propulsion. This mission concept involves a spacecraft following the Earth's polar axis to have a continuous, hemispherical view of one of the Earth's poles.
Biggs, James, Biggs, J.D., BIGGS, JAMES DOUGLAS, Heiligers, Jeannette, McInnes, Colin, Ceriotti, Matteo, Heiligers, J., Ceriotti, M., Mcinnes, Colin R., McInnes, C.R.   +9 more
core   +1 more source

Evolutionary neurocontrol: A novel method for low-thrust gravity-assist trajectory optimization [PDF]

, 2009
This article discusses evolutionary neurocontrol, a novel method for low-thrust gravity-assist trajectory ...
Dachwald, B., Vasile, M., Vasile, Massimiliano, Dachwald, Bernd, Carnelli, L., Carnelli, I.   +5 more
core   +1 more source

Multiplicity with a thrust cut [PDF]

Zeitschrift f�r Physik C Particles and Fields, 1994
We evaluate the multiplicity of hadrons in the $e^+e^-$-annihilation at a given thrust $T$ in the modified leading-log approximation, including $O(\sqrt{α_s})$ corrections. The calculation is done at a large value of $τ=1-T$ by the use of the factorisation which takes place in the one-particle-inclusive cross section at a given $τ$.
Kimura, K., Tesima, K.
openaire   +2 more sources

Preliminary design of debris removal missions by means of simplified models for low-thrust, many-revolution transfers [PDF]

, 2012
This paper presents a novel approach for the preliminary design of Low-Thrust (LT), many-revolution transfers. The main feature of the novel approach is a considerable reduction in the control parameters and a consequent gain in computational speed. Each
Vasile, Massimiliano, Zuiani, Federico, Federico Zuiani, Massimiliano Vasile   +3 more
core   +1 more source

MODELING AND CALCULATION OF A GEAR CONNECTION FOR A UNIVERSAL DEVICE FOR MEASURING THE THRUST OF AN UNMANNED AERIAL VEHICLE PROPELLER

Надежность и качество сложных систем, 2022
Background. The rapid development and widespread use of various unmanned aerial vehicles requires the introduction of their typification and certification.
D.S. Ergaliev, D.V. Zuev, A.A. Kochetkov, A.V. Lysenko, N.D. Koshelev   +4 more
doaj   +1 more source

Porosity and Compaction State at the Active Pāpaku Thrust Fault in the Frontal Accretionary Wedge of the North Hikurangi Margin

Geochemistry, Geophysics, Geosystems, 2021
Characterization of the porosity evolution across the sedimentary section entering subduction zones and accreted sediments provide valuable information for understanding the deformation history at accretionary margins and the physico‐chemical processes ...
Jade Dutilleul, S. Bourlange, Y. Géraud
doaj   +1 more source

Multi-objective optimal design of a fluidic thrust vectoring nozzle [PDF]

, 2006
Fluidic Thrust Vectoring (FVT) systems based on Coanda jets are amongst the most promising technologies being considered for future flapless aircraft. One of the core components of a Coanda FTV device is the main jet nozzle, featuring a circular inflow ...
Andy Keane, Sobester, Andras, Keane, Andy J., Andras Sobester   +3 more
core   +1 more source

Photonics Breakthroughs 2024: Multidimensional Integrated (de)Multiplexers for Optical Fiber Communications

IEEE Photonics Journal
The growing demand for higher data transmission capacity, particularly driven by advancements in artificial intelligence and cloud computing, has spurred the exploration of various degrees of freedom (DoF) of light in optical communication systems ...
Xianyi Feng, Wu Zhou, Hao Chen, Yuzhe Ma, Yeyu Tong   +4 more
doaj   +1 more source