Results 31 to 40 of about 789,402 (317)

MGA trajectory planning with an ACO-inspired algorithm [PDF]

open access: yes, 2009
Given a set of celestial bodies, the problem of finding an optimal sequence of gravity assist manoeuvres, deep space manoeuvres (DSM) and transfer arcs connecting two or more bodies in the set is combinatorial in nature.
Vasile, M., Ceriotti, M.
core   +1 more source

Impact Points and Their Effect on Trajectory in Soccer

open access: yesProceedings, 2018
The kick skill and its analysis are important in Soccer. To detect impact point by using virtual impact model is aim of this study. The virtual impact model was made as a surface composed of virtual markers.
Kaoru Kimachi   +3 more
doaj   +1 more source

The Trajectory of Targets and Critical Lures in the Deese/Roediger–McDermott Paradigm: A Systematic Review

open access: yesFrontiers in Psychology, 2021
The Deese/Roediger–McDermott (DRM) paradigm has been used extensively to examine false memory. During the study session, participants learn lists of semantically related items (e.g., pillow, blanket, tired, bed), referred to as targets.
Patricia I. Coburn   +4 more
doaj   +1 more source

On testing global optimization algorithms for space trajectory design [PDF]

open access: yes, 2008
In this paper we discuss the procedures to test a global search algorithm applied to a space trajectory design problem. Then, we present some performance indexes that can be used to evaluate the effectiveness of global optimization algorithms.
Marco Locatelli   +10 more
core   +3 more sources

Trajectory-Based 3D Point Cloud ROI Determination Methods for Autonomous Mobile Robot

open access: yesIEEE Access, 2023
With depth cameras and LiDAR improving and generating more data, their applications in 3D point clouds are growing rapidly. However, the vast amount of generated data increases the computational load and results in a shortage of storage space. Therefore,
Jong Hoon Park   +3 more
doaj   +1 more source

Detection of odor sources and high concentrations of pollutants in the Ore Mountains by modeling of air mass paths

open access: yesMeteorologische Zeitschrift, 2013
Since decades odor pollutions are a well-known problem in the Ore Mountains and Vogtland, especially areas close to the border to the Czech Republic. Many facilities in North Bohemia are considered as the main polluters. Most notably these contaminations
Michael Jähn, Ralf Wolke, Beate Sändig
doaj   +1 more source

Trajectory: A model of the sign and of semiosis

open access: yesSign Systems Studies, 2020
This paper examines how far the model of the trajectory as a path that a moving object follows from a source to a goal is an adequate model of the sign and of semiotic processes.
Winfried Nöth
doaj   +1 more source

Brachial-ankle pulse wave velocity trajectories in a middle-aged population

open access: yesFrontiers in Cardiovascular Medicine, 2023
ObjectiveThe “trajectory” phenotype was observed in several cardiovascular risk factors with aging. We aim to identify multiple brachial-ankle Pulse Wave Velocity (baPWV) trajectory phenotypes and assess their determinants.MethodsAmong 5,182 participants
Xuan Deng   +6 more
doaj   +1 more source

Trajectory tracking control for mecanum wheel mobile robot by time-varying parameter PID controller

open access: yes, 2022
This paper presents the design method a proportional integral derivative (PID) controller with time-varying parameters for trajectory tracking of a mecanum-wheeled robot with a minor error.
Dzung, Le Quoc   +5 more
core   +1 more source

Itinéraire d’un blogueur : entre quête de reconnaissance et visibilité limitée

open access: yesItinéraires, 2010
Blogs are known to have facilitated the access of Internet users to online publication. Nevertheless, behind this comparatively technical simplicity, the practice of blogging appears to be fraught with many traps. Through the trajectory of a blogger, our
Olivier Trédan
doaj   +1 more source

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