Results 21 to 30 of about 1,542,711 (338)

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

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

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

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

EXPLORATION OF BATIK JAMBI ON LEARNING TRANSFORMATION GEOMETRY

open access: yesPrima: Jurnal Pendidikan Matematika, 2023
Geometry Ability is one of the mathematical abilities that must be mastered by students, this is because geometry ability is one part of learning mathematics.
retno andriyani   +4 more
doaj   +1 more source

Partial positivity: geometry and cohomology of q-ample line bundles [PDF]

open access: yes, 2014
We give an overview of partial positivity conditions for line bundles, mostly from a cohomological point of view. Although the current work is to a large extent of expository nature, we present some minor improvements over the existing literature and a ...
Greb, Daniel, Küronya, Alex
core   +3 more sources

STRICT GEOMETRIC CALIBRATION OF AN UNDERWATER LASER TRIANGULATION SYSTEM [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
This paper will describe a novel approach for the calibration of an underwater laser triangulation system. Underwater triangulation systems, consisting of a line laser and a camera can be used to determine the geometry of submerged objects or the ...
H. Sardemann, C. Mulsow, H.-G. Maas
doaj   +1 more source

Silhouette and spectral line profiles in the special modification of the Kerr black hole geometry generated by quintessential fields [PDF]

open access: yes, 2016
We study optical effects in quintessential Kerr black hole spacetimes corresponding to the limiting case of the equation-of-state parameter $\omega_{q}=-1/3$ of the quintessence.
Schee, Jan, Stuchlik, Zdenek
core   +2 more sources

Impact of Fjord Geometry on Grounding Line Stability

open access: yesFrontiers in Earth Science, 2018
Recent and past retreat of marine-terminating glaciers are broadly consistent with observed ocean warming, yet responses vary significantly within regions experiencing similar ocean conditions. We assess how fjord geometry modulates glacier response to a
Henning Åkesson   +3 more
doaj   +1 more source

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