Results 11 to 20 of about 2,403,301 (299)

A new species of the genus Dolichoderus Lund, 1831 (Hymenoptera: Formicidae) from a Late Eocene European amber [PDF]

open access: yesКавказский энтомологический бюллетень, 2022
A new species of ants, Dolichoderus jonasi sp. n., from a Late Eocene amber (Rovno and presumably Baltic ambers) of Europe is described from three workers and one male. The new species differs from all known fossil and recent species of the genus by the
D.A. Dubovikoff, D.M. Zharkov
doaj   +1 more source

Bioengineering the ameloblastoma tumour to study its effect on bone nodule formation

open access: yesScientific Reports, 2021
Ameloblastoma is a benign, epithelial cancer of the jawbone, which causes bone resorption and disfigurement to patients affected. The interaction of ameloblastoma with its tumour stroma drives invasion and progression.
Deniz Bakkalci   +11 more
doaj   +1 more source

Determining geometric primitives for a 3D GIS : easy as 1D, 2D, 3D? [PDF]

open access: yes, 2015
Acquisition techniques such as photo modelling, using SfM-MVS algorithms, are being applied increasingly in several fields of research and render highly realistic and accurate 3D models.
De Maeyer, Philippe   +4 more
core   +1 more source

Using mobile 3D models for demonstration unaccessible laboratory experiments and objects during study chemistry and biology in basic school

open access: yesRUDN Journal of Informatization in Education, 2022
Problem statement. The technological development of augmented reality is becoming more impressive every year. But, despite all the advantages and possibilities of using augmented reality in the modern world, it is still in its infancy in the field of ...
Ekaterina A. Balkina
doaj   +1 more source

Creation of Functional Replica Roman and Late Antique Musical Instruments through 3D Scanning and Printing Technology, and their use in research and museum education

open access: yesInternet Archaeology, 2021
Replica artefacts are a well-established feature of Roman archaeology, particularly as used in experimental archaeology, by re-enactors, and in museum education.
Ellen Swift   +8 more
doaj   +1 more source

Effective temperature determinations of late-type stars based on 3D non-LTE Balmer line formation [PDF]

open access: yes, 2018
Hydrogen Balmer lines are commonly used as spectroscopic effective temperature diagnostics of late-type stars. However, the absolute accuracy of classical methods that are based on one-dimensional (1D) hydrostatic model atmospheres and local ...
Amarsi, A. M.   +5 more
core   +2 more sources

Tracing Changes in Shape of Historical Artefacts Across Time Using 3D Scans: A New Computational Approach

open access: yesJournal of Open Humanities Data, 2022
This paper pioneers a new computational approach for the study of changes in shape of objects across time. Previously, such a study was undertaken by scholars using a purely visual approach and relied on images of objects or in-person observations.
Giovanni Maria Pala   +1 more
doaj   +1 more source

Applications of UAV technology within the construction industry [PDF]

open access: yesBusiness & IT, 2021
This paper shows how drones can help with construction inspection, which is currently costly in terms of the safety of workers and time. The paper depicts the use of drones to collect construction data with drone software that allows people to create 2D ...
Zbynek Skoda, Jakub Holcman
doaj   +1 more source

How realistic are solar model atmospheres? [PDF]

open access: yes, 2013
Recently, new solar model atmospheres have been developed to replace classical 1D LTE hydrostatic models and used to for example derive the solar chemical composition. We aim to test various models against key observational constraints.
Asplund, Martin   +5 more
core   +2 more sources

Multi-touch 3D Exploratory Analysis of Ocean Flow Models [PDF]

open access: yes, 2011
Modern ocean flow simulations are generating increasingly complex, multi-layer 3D ocean flow models. However, most researchers are still using traditional 2D visualizations to visualize these models one slice at a time. Properly designed 3D visualization
Butkiewicz, Thomas J., Ware, Colin
core   +2 more sources

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