Results 31 to 40 of about 3,081,381 (296)

SYNTHESIS OF CONTROL FOR GROUP OF AUTONOMOUS ROBOTS WITH PHASE CONSTRAINTS BY MULTI-LAYER NETWORK OPERATOR WITH PRIORITIES

open access: yesRUDN Journal of Engineering Research, 2017
We consider a control system synthesis problem for the small group of autonomous robots with state constraints and several possible initial conditions.
Askhat I Diveev, Elizaveta Yu Shmalko
doaj   +1 more source

Research on UWB Indoor Positioning System Based on TOF Combined Residual Weighting

open access: yesSensors, 2023
The performance of TDOA positioning based on UWB is limited by the hyperbolic characteristics of TDOA, especially for tags away from the hyperbolic asymptote. Aiming at this problem, a new UWB indoor positioning system is proposed.
Jinmin Yang, Chunhua Zhu
doaj   +1 more source

POSITIVE SOLUTIONS OF INITIAL VALUE PROBLEMS FOR SINGULAR INTEGRO-DIFFERENTIAL EQUATIONS IN BANACH SPACE

open access: yesDemonstratio Mathematica, 2003
The authors investigate the global existence of positive solutions of singular initial value problems of first order integro-differential equations on [0,1] to Banach spaces for a class by using the Lebesgue's dominated theorem.
Liu, Yansheng, Qi, Aiqin
openaire   +2 more sources

Trajectory Planning of a 6D Robot based on Meta Heuristic Algorithms

open access: yesMATEC Web of Conferences, 2018
In this work, several established meta-heuristics (MHs) were employed for solving 6-DOF robot trajectory planning. A fourth order polynomial function is used to represent a motion path of the robot from initial to final points while an optimisation ...
Wichapong Kritsada   +3 more
doaj   +1 more source

On Optimal Harvesting in Stochastic Environments: Optimal Policies in a Relaxed Model

open access: yes, 2011
This paper examines the objective of optimally harvesting a single species in a stochastic environment. This problem has previously been analyzed in Alvarez (2000) using dynamic programming techniques and, due to the natural payoff structure of the price
E. Lungu   +7 more
core   +3 more sources

Evolution of initial discontinuities in the Riemann problem for the Kaup-Boussinesq equation with positive dispersion [PDF]

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 2017
We consider the space-time evolution of initial discontinuities of depth and flow velocity for an integrable version of the shallow water Boussinesq system introduced by Kaup. We focus on a specific version of this “Kaup-Boussinesq model” for which a flat water surface is modulationally stable, we speak below of “positive dispersion” model.
T. Congy   +3 more
openaire   +3 more sources

Topological robotics: motion planning in projective spaces

open access: yes, 2002
We study an elementary problem of topological robotics: rotation of a line, which is fixed by a revolving joint at a base point: one wants to bring the line from its initial position to a final position by a continuous motion in the space. The final goal
Farber, Michael   +2 more
core   +2 more sources

Positive solutions of an integrodifferential multi-point initial value problem with fractional order [PDF]

open access: yesFractional Differential Calculus, 2014
Summary: The aim of this paper is to obtain existence results for a nonlinear integrodifferential multi-point initial value problem of fractional order by using fractional calculus and fixed point theory. Then, we study the positivity of the obtained solution.
openaire   +1 more source

The binary black-hole problem at the third post-Newtonian approximation in the orbital motion: Static part [PDF]

open access: yes, 1999
Post-Newtonian expansions of the Brill-Lindquist and Misner-Lindquist solutions of the time-symmetric two-black-hole initial value problem are derived. The static Hamiltonians related to the expanded solutions, after identifying the bare masses in both ...
C. W. Misner   +9 more
core   +3 more sources

From star-disc encounters to numerical solutions for a subset of the restricted three-body problem

open access: yes, 2017
Various astrophysical processes are known, where the fly-by of a massive object affects matter initially supported against gravity by rotation. Examples are perturbations of galaxies, protoplanetary discs or planetary systems.
Breslau, Andreas   +2 more
core   +1 more source

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