Results 21 to 30 of about 1,206,650 (354)

Covering Spheres with Spheres [PDF]

open access: yesDiscrete & Computational Geometry, 2007
11 pages, 1 ...
openaire   +3 more sources

Relativistic Spheres [PDF]

open access: yes, 1999
By analyzing the Einstein's equations for the static sphere, we find that there exists a non-singular static configuration whose radius can approach its corresponding horizon size arbitrarily.Comment: 8 pages revtex, 1 ps ...
Hao, L., Liu, S., Wei, J.
core   +2 more sources

Railway reconstruction from 3D point cloud using Deep Learning and Parametric Modeling [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Railway infrastructure is crucial for transporting goods and passengers, making its maintenance and reconstruction vital for safety and reliability. Traditional methods reliant on manual surveys are time-consuming and prone to inaccuracies.
A. Yarroudh   +4 more
doaj   +1 more source

A method to culture human alveolar rhabdomyosarcoma cell lines as rhabdospheres demonstrates an enrichment in stemness and Notch signaling

open access: yesBiology Open, 2021
The development of three-dimensional cell culture techniques has allowed cancer researchers to study the stemness properties of cancer cells in in vitro culture.
Katherine K. Slemmons   +8 more
doaj   +1 more source

Hopf Maps, Lowest Landau Level, and Fuzzy Spheres [PDF]

open access: yes, 2010
This paper is a review of monopoles, lowest Landau level, fuzzy spheres, and their mutual relations. The Hopf maps of division algebras provide a prototype relation between monopoles and fuzzy spheres.
Hasebe, Kazuki
core   +3 more sources

An alternative theoretical model of the Earth's EM field based on two-component field hypotheses

open access: yesVojnotehnički Glasnik, 2023
Introduction/purpose: The paper describes an alternative theoretical model of the Earth's EM field based on two-component field hypotheses. The paper consists of several parts, one part of which is a model showing the rotation of the magnetically ...
Slobodan N. Bjelić, Nenad A. Marković
doaj   +1 more source

Automatic upgrade of 3D building models to LoD3 using 3D Point Clouds and Grounding DINO [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
The advancement of urban digital twins depends on the accurate representation of 3D city models, particularly Level of Detail 3 (LoD3) models, which incorporate detailed façade features essential for urban planning applications.
A. Yarroudh   +3 more
doaj   +1 more source

Cosymplectic p-spheres [PDF]

open access: yes, 2015
We introduce cosymplectic circles and cosymplectic spheres, which are the analogues in the cosymplectic setting of contact circles and contact spheres. We provide a complete classification of compact 3-manifolds that admit a cosymplectic circle.
Cappelletti-Montano, Beniamino   +2 more
core   +1 more source

The Power of Spheres [PDF]

open access: yesNature, 2019
DNA or RNA molecules, arranged into spherical shapes, can attack brain cancers and other illnesses that evade conventional drug design. DNA or RNA molecules, arranged into spherical shapes, can attack brain cancers and other illnesses that evade conventional drug design.
Chad A. Mirkin   +2 more
openaire   +3 more sources

A Data Cube Metamodel for Geographic Analysis Involving Heterogeneous Dimensions

open access: yesISPRS International Journal of Geo-Information, 2021
Due to their multiple sources and structures, big spatial data require adapted tools to be efficiently collected, summarized and analyzed. For this purpose, data are archived in data warehouses and explored by spatial online analytical processing (SOLAP)
Jean-Paul Kasprzyk, Guénaël Devillet
doaj   +1 more source

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