Results 11 to 20 of about 263,441 (263)

Geometry of Lines on a Cubic Four-Fold

open access: yesInternational Mathematics Research Notices, 2023
Abstract For a general cubic four-fold $X\subset {\mathbb {P}}^5$ with Fano scheme of lines $F$, we prove a number of properties of the universal family of lines $I\to F$ and various subloci. We first describe the moduli and ramification theory of the genus four fibration $p:I\to X$ and explore its relation to a birational model of $F ...
Gounelas, Frank, Kouvidakis, Alexis
openaire   +4 more sources

The GeoModel tool suite for detector description [PDF]

open access: yesEPJ Web of Conferences, 2021
The GeoModel class library for detector description has recently been released as an open-source package and extended with a set of tools to allow much of the detector modeling to be carried out in a lightweight development environment, outside of large ...
Bandieramonte Marilena   +4 more
doaj   +1 more source

Kinematic Differential Geometry of a Line Trajectory in Spatial Movement

open access: yesAxioms, 2023
This paper investigates the kinematic differential geometry of a line trajectory in spatial movement. Specifically, we provide a theoretical expression of inflection line congruence, which is the spatial equivalent of the inflection circle of planar ...
Areej A. Almoneef, Rashad A. Abdel-Baky
doaj   +1 more source

Kinematic Geometry of a Timelike Line Trajectory in Hyperbolic Locomotions

open access: yesAxioms, 2023
This study utilizes the axodes invariants to derive novel hyperbolic proofs of the Euler–Savary and Disteli formulae. The inflection circle, which is widely recognized, is situated on the hyperbolic dual unit sphere, in accordance with the principles of ...
Areej A. Almoneef, Rashad A. Abdel-Baky
doaj   +1 more source

Line geometry and 3D graphic statics

open access: yesGrađevinar, 2019
The mathematical basis for the line geometry, with the line as its basic element, is presented in the paper because the forces that act on a body in space - whether we are interested in conditions of movement or immobility (balance) of that body - are ...
Iva Kodrnja   +2 more
doaj   +1 more source

Epipolar geometry based on line similarity [PDF]

open access: yes2016 23rd International Conference on Pattern Recognition (ICPR), 2016
ICPR 2016, Cancun, Dec ...
Gil Ben-Artzi   +3 more
openaire   +2 more sources

A Straight Line through the Wilderness: Geometry and Geography in William Byrd’s Histories of the Dividing line Betwixt Virginia and North Carolina (1728 sqq)

open access: yesMiranda: Revue Pluridisciplinaire du Monde Anglophone, 2012
In the text now known as the Histories of the Dividing line, William Byrd II narrates the survey, in 1728, of the straight line marking the Virginia-North Carolina border.
Julien Nègre
doaj   +1 more source

EXPERIMENTS WITH UAS IMAGERY FOR AUTOMATIC MODELING OF POWER LINE 3D GEOMETRY [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
The ideal mapping technology for transmission line inspection is the airborne LiDAR executed from helicopter platforms. It allows for full 3D geometry extraction in highly automated manner.
G. Jóźków, B. Vander Jagt, C. Toth
doaj   +1 more source

Nut Geometry Inspection Using Improved Hough Line and Circle Methods

open access: yesSensors, 2023
Nuts are the cornerstone of human industrial construction, especially A-grade nuts that can only be used in power plants, precision instruments, aircraft, and rockets.
En-Yu Lin   +2 more
doaj   +1 more source

Significance of the suture line in cephalopod taxonomy revealed by 3D morphometrics in the modern nautilids Nautilus and Allonautilus

open access: yesScientific Reports, 2021
Assessing the taxonomic importance of the suture line in shelled cephalopods is a key to better understanding the diversity of this group in Earth history.
Amane Tajika   +2 more
doaj   +1 more source

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