Results 1 to 10 of about 242,455 (164)

Surface Approximation by Means of Gaussian Process Latent Variable Models and Line Element Geometry [PDF]

Mathematics, 2023
The close relation between spatial kinematics and line geometry has been proven to be fruitful in surface detection and reconstruction. However, methods based on this approach are limited to simple geometric shapes that can be formulated as a linear ...
Ivan De Boi, Carl Henrik Ek, Rudi Penne
doaj   +2 more sources

Algorithmic Modified Denavit–Hartenberg Modeling for Robotic Manipulators Using Line Geometry [PDF]

Applied Sciences
This paper proposes a kinematic modeling method for robotic manipulators by extracting the modified Denavit–Hartenberg (MDH) parameters using line geometry.
Minchang Sung, Youngjin Choi
doaj   +2 more sources

Velocity-resolved Ionization Mapping of Broad Line Region. I. Insights into Diverse Geometry and Kinematics

The Astrophysical Journal
Broad emission lines of active galactic nuclei (AGNs) originate from the broad-line region (BLR), consisting of dense gas clouds in orbit around an accreting supermassive black hole. Understanding the geometry and kinematics of this region is crucial for
Sha-Sha Li, Hai-Cheng Feng, H. T. Liu, J. M. Bai, Xiang Ji, Yu-Xuan Pang, Cheng Cheng, Kai-Xing Lu, Jian-Guo Wang, Rui Li   +9 more
doaj   +2 more sources

Aircraft Pose Estimation Based on Geometry Structure Features and Line Correspondences [PDF]

Sensors, 2019
A robust and accurate aircraft pose estimation method is proposed in this paper. The aircraft pose reflects the flight status of the aircraft and accurate pose measurement is of great importance in many aerospace applications. This work aims to establish
Xichao Teng, Qifeng Yu, Jing Luo, Gang Wang, Xiaohu Zhang   +4 more
doaj   +2 more sources

Angular Rolling of the Hollow Flanges of Pipe Joints

Metals, 2021
The paper considers a three-stage technology for angular rolling of the pipe workpiece. This technology facilitates the expansion of the range of flange parts available by eliminating a number of drawbacks of the known methods of metal forming.
Pavel Kononov, Sergey Ignatiev, Dmitry Levashov, Irina Kononova   +3 more
doaj   +1 more source

Step-By-Step Modeling and Demetallation Experimental Study on the Porous Structure in Zeolites

Molecules, 2022
The organization of microporous space in zeolites is discussed. A new step-by-step model is proposed that explains the principles of organizing the hierarchy of microporous space at the stage of assembling zeolites from elements of minimal size: a ...
Pavel Kononov, Irina Kononova, Vyacheslav Moshnikov, Evgeniya Maraeva, Olga Trubetskaya   +4 more
doaj   +1 more source

The Architectonics Features of Heterostructures for IR Range Detectors Based on Polycrystalline Layers of Lead Chalcogenides

Crystals, 2021
A model is developed for the formation of porous intragranular architectonics of nanostructured polycrystalline layers of lead chalcogenides for photodetectors and IR emitters.
Yuliya Mikhailovna Spivak, Irina Evgen’evna Kononova, Pavel Vasil’evich Kononov, Vyacheslav Alexeyevich Moshnikov, Sergey Anatol’evich Ignat’ev   +4 more
doaj   +1 more source

On the Angular Control of Rotating Lasers by Means of Line Calculus on Hyperboloids

Sensors, 2023
We propose a new paradigm for modelling and calibrating laser scanners with rotation symmetry, as is the case for lidars or for galvanometric laser systems with one or two rotating mirrors.
Rudi Penne, Ivan De Boi, Steve Vanlanduit   +2 more
doaj   +1 more source

SnO₂-Based Porous Nanomaterials: Sol-Gel Formation and Gas-Sensing Application

Gels, 2023
Porous nanocomposites using two (tin dioxide–silica dioxide) and three (tin dioxide–indium oxide-silica dioxide)-component systems for gas sensors were created with the sol–gel method.
Irina Kononova, Vyacheslav Moshnikov, Pavel Kononov   +2 more
doaj   +1 more source

Geometry of two-parametric family of linear line complexes

Lietuvos Matematikos Rinkinys, 2005
In this article differential geometry of two-parametric family of linear line complexes in the three-dimensional projective space is considered.
Kazimieras Navickis
doaj   +3 more sources