Results 21 to 30 of about 334,043 (330)

Visually Enhanced Parallel Coordinates Plot With Two-Dimensional Kernel Density Scatter Plots

open access: yesIEEE Access, 2023
Parallel coordinates plots are popular tools for high-dimensional data visualization. To alleviate the difficulties caused by the inherent defects that arise when the dimensions are increased, this study attached two-dimensional kernel density scatter ...
Jia Liu   +7 more
doaj   +1 more source

To the question of coordinate system choice within composition of the spatial generalized MIMO radar ambiguity function [PDF]

open access: yesITM Web of Conferences, 2019
The issue of the choice of spatial coordinate system which is suitable to physical sense of the radar concept is explored on the basis of the derivation of spatial generalized ambiguity function for MIMO antenna system and of its cross-section analysis ...
Vodolazov Rodion   +2 more
doaj   +1 more source

Calculation of Angular Coordinates for the Control System of a Two-Link Industrial Robot Manipulator

open access: yesAdvanced Engineering Research, 2023
Introduction. One of the tasks of two-link manipulators of industrial robots that move the end-effector along complex trajectories (e.g., robot welder) is associated with the need for careful programming of their movement.
S. P. Glushko
doaj   +1 more source

Plasticity of intermediate mechanics students’ coordinate system choice

open access: yesPhysical Review Special Topics. Physics Education Research, 2008
We investigate the interplay between mathematics and physics resources in intermediate mechanics students. In the mechanics course, the selection and application of coordinate systems is a consistent thread.
Eleanor C. Sayre, Michael C. Wittmann
doaj   +2 more sources

A Geodetic Normal Distribution Map for Long-Term LiDAR Localization on Earth

open access: yesIEEE Access, 2021
Light detection and ranging (LiDAR) sensors enable a vehicle to estimate a pose by matching their measurements with a point cloud (PCD) map. However, the PCD map structure, widely used in robot fields, has some problems to be applied for mass production ...
Chansoo Kim   +5 more
doaj   +1 more source

A Novel Design of Permanent Magnet Linear Synchronous Motor with Reduced End Effect [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2023
In response to the end effect of the permanent magnet linear synchronous motor, this paper proposes an improved modular motor structure. To compute its electromagnetic characteristics, a subdomain model that converts the Cartesian coordinate system into ...
Qingle Wu   +5 more
doaj   +1 more source

Gyroscopically Stabilized Robot: Balance and Tracking

open access: yesInternational Journal of Advanced Robotic Systems, 2004
The single wheel, gyroscopically stabilized robot - Gyrover, is a dynamically stable but statically unstable, underactuated system. In this paper, based on the dynamic model of the robot, we investigate two classes of nonholonomic constraints associated ...
Yongsheng Ou, Yangsheng Xu
doaj   +1 more source

Expression of GNSS Positioning Error in Terms of Distance

open access: yesPromet (Zagreb), 2018
This manuscript analyzes two methods for Global Navigation Satellite System positioning error determination for positioning performance assessment by calculation of the distance between the observed and the true positions: one using the Cartesian 3D ...
Mia Filić   +2 more
doaj   +1 more source

A Method of Calculating Principal Stress Trajectories in Powder and Porous Materials Obeying a Piece-wise Linear Yield Criterion

open access: yesMATEC Web of Conferences, 2018
The present paper deals with the system of equations comprising the pyramid yield criterion together with the stress equilibrium equations under plane strain conditions.
Alexandrov Sergei   +2 more
doaj   +1 more source

Using of Parallel Coordinates in Finding Minimum Distance in Time-Space

open access: yesCommunications, 2019
Airspace domain may be represented by a time-space consisting of a three-dimensional Cartesian coordinate system and time as the fourth dimension. A coordinate system provides a scheme for locating points given its coordinates and vice versa.
Olga Blazekova, Maria Vojtekova
doaj   +1 more source

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