Results 21 to 30 of about 179,091 (292)
The Earth-Moon Transfer Trajectory Design and Analysis using Intermediate Loop Orbits [PDF]
Various Earth-Moon transfer trajectories are designed and analyzed to prepare the future Korea's Lunar missions. Minimum fuel trajectory solutions are obtained for the departure year of 2017, 2020, 2022, and every required mission phases are analyzed ...
Young-Joo Song +4 more
doaj +1 more source
On the smoothness of nonlinear system identification
We shed new light on the \textit{smoothness} of optimization problems arising in prediction error parameter estimation of linear and nonlinear systems.
Aguirre, Luis A. +4 more
core +1 more source
Global Analysis of a Planetary Gear Train
By using the Poincaré-like cell-to-cell mapping method and shooting method, the global characteristics of a planetary gear train are studied based on the torsional vibration model with errors of transmission, time-varying meshing stiffness, and multiple ...
Tongjie Li, Rupeng Zhu
doaj +1 more source
Design of Round Trip Trajectories to Lunar L1 [PDF]
In this paper design of transfer trajectory from Earth park orbit to a halo orbit around L1 of Earth-Moon system and return trajectory from halo orbit to the Earth are investigated.
M. Jafari -Nadoushan, A. Novinzadeh
doaj
Multiple Solutions of Mixed Convective MHD Casson Fluid Flow in a Channel
A numerical investigation is made to determine the occurrence of the multiple solutions of MHD Casson fluid in a porous channel. Governing partial differential equation of the proposed problem converted into nonlinear ordinary differential equations by ...
Jawad Raza +2 more
doaj +1 more source
The composite electromagnetic (EM) scattering characteristics of low-altitude target above valley composite rough surface are studied. The composite rough surface modeling theory is adopted to simulate the natural cavity structure of valley environment ...
Gaoxiang Zou +4 more
doaj +1 more source
Multiplicity of solutions for the Minkowski-curvature equation via shooting method
In this paper we prove the existence and the multiplicity of radial positive oscillatory solutions for a nonlinear problem governed by the mean curvature operator in the Lorentz-Minkowski space. The problem is set in an N-dimensional ball and is subject to Neumann boundary conditions. The main tool used is the shooting method for ODEs.
Alberto Boscaggin +2 more
openaire +7 more sources
Automatic computation of quantum-mechanical bound states and wavefunctions [PDF]
We discuss the automatic solution of the multichannel Schr\"odinger equation. The proposed approach is based on the use of a CP method for which the step size is not restricted by the oscillations in the solution.
Ledoux, Veerle, Van Daele, Marnix
core +3 more sources
Current research on dynamic displacement measurement based on computer vision mostly requires professional high-speed cameras and an ideal shooting environment to ensure the performance and accuracy of the analysis.
Taicong Chen, Zhou Zhou
doaj +1 more source
In this study, the hardware and software design and implementation of an autonomous electric vehicle are addressed. We aimed to develop an autonomous electric vehicle for path tracking. Control and navigation algorithms are developed and implemented. The
Ali Barzegar +2 more
doaj +1 more source

