Results 21 to 30 of about 91 (74)
Transport Dynamics: From the Bicircular to the Real Solar System Problem [PDF]
, 2015 The main goal is to give an explanation of transport in the Solar System based in dynamical systems theory. More concretely, we consider as an approximation of the Solar System, a chain of independent Bicircular problems in order to get a first insight of transport in this simplified case.
Mercè Ollé +3 more
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Mathematical Problems in Engineering, Volume 2018, Issue 1, 2018., 2018 In this study, an analytical solution for the stress and displacement field for arbitrarily positioned twin‐tunnel excavation at great depth is proposed. The twin‐tunnel is subjected to equivalent loads on the tunnel periphery and uniform loads at infinity.
Luobin Lin +3 more
wiley +1 more source
International Journal of Aerospace Engineering, Volume 2016, Issue 1, 2016., 2016 The restricted three‐body problem (R3BP) and restricted four‐body problem (R4BP) are modeled based on the rotating frame. The conservative autonomous system for the R3BP and nonautonomous system with period parametric resonance due to the fourth body are derived.
Ying-Jing Qian +4 more
wiley +1 more source
Optimal Two‐Impulse Trajectories with Moderate Flight Time for Earth‐Moon Missions
Mathematical Problems in Engineering, Volume 2012, Issue 1, 2012., 2012 A study of optimal two‐impulse trajectories with moderate flight time for Earth‐Moon missions is presented. The optimization criterion is the total characteristic velocity. Three dynamical models are used to describe the motion of the space vehicle: the well‐known patched‐conic approximation and two versions of the planar circular restricted three‐body
Sandro da Silva Fernandes +2 more
wiley +1 more source
Dynamical Aspects of an Equilateral Restricted Four‐Body Problem
Mathematical Problems in Engineering, Volume 2009, Issue 1, 2009., 2009 The spatial equilateral restricted four‐body problem (ERFBP) is a four body problem where a mass point of negligible mass is moving under the Newtonian gravitational attraction of three positive masses (called the primaries) which move on circular periodic orbits around their center of mass fixed at the origin of the coordinate system such that their ...
Martha Álvarez-Ramírez +2 more
wiley +1 more source
Quantum battles in attoscience: tunnelling. [PDF]
Eur Phys J D At Mol Opt Phys, 2021 Hofmann C +4 more
europepmc +1 more source
2024 American Control Conference (ACC)This paper considers constrained spacecraft rendezvous and docking (RVD) in the setting of the Bicircular Restricted Four-Body Problem (BCR4BP), while accounting for attitude dynamics. We consider Line of Sight (LoS) cone constraints, thrust limits, thrust direction limits, and approach velocity constraints during RVD missions in a near rectilinear ...
Taehyeun Kim +2 more
openaire +4 more sources
Public sentiment analysis on urban regeneration: A massive data study based on sentiment knowledge enhanced pre-training and latent Dirichlet allocation. [PDF]
PLoS One, 2023 Chen K, Wei G.
europepmc +1 more source
Light-Induced Ultrafast Molecular Dynamics: From Photochemistry to Optochemistry. [PDF]
J Phys Chem Lett, 2022 Li H +9 more
europepmc +1 more source
Machine vision-assisted identification of the lung adenocarcinoma category and high-risk tumor area based on CT images. [PDF]
Patterns (N Y), 2022 Chen L +7 more
europepmc +1 more source