Results 61 to 70 of about 5,609,782 (360)

Effect of Salt on Gelation Behavior of Injectable Nanocomposite Scaffold Based on Hydroxypropyl Methylcellulose and Hydroxyapatite/Tricalcium Phosphate Nanoparticles [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2014
Biocompatible cellulosic polymer hydrogels are used in in-situ forming injectable scaffolds for bone regeneration. The hydrogels, however, generally suffer from their inherent weak mechanical properties.
Roghayyeh Marefat Seyedlar   +3 more
doaj   +1 more source

Feature Analysis of Scanning Point Cloud of Structure and Research on Hole Repair Technology Considering Space-Ground Multi-Source 3D Data Acquisition

open access: yesSensors, 2022
As one of the best means of obtaining the geometry information of special shaped structures, point cloud data acquisition can be achieved by laser scanning or photogrammetry.
Xinming Pu   +3 more
doaj   +1 more source

Preparation of polyamide 12 powder for additive manufacturing applications via thermally induced phase separation

open access: yese-Polymers, 2022
Spherical polyamide 12 (PA12) powder for selective laser sintering (SLS) was prepared by thermally induced phase separation (TIPS) method. It was authenticated that the mixed solvent can regulate the liquid–liquid phase separation (LLPS) process by ...
Su Dandan   +4 more
doaj   +1 more source

SeedFormer: Patch Seeds based Point Cloud Completion with Upsample Transformer [PDF]

open access: yesEuropean Conference on Computer Vision, 2022
Point cloud completion has become increasingly popular among generation tasks of 3D point clouds, as it is a challenging yet indispensable problem to recover the complete shape of a 3D object from its partial observation.
Hao Zhou   +6 more
semanticscholar   +1 more source

Point clouds in BIM [PDF]

open access: yesIOP Conference Series: Earth and Environmental Science, 2016
The representation of physical buildings in Building Information Models (BIM) has been a subject of research since four decades in the fields of Construction Informatics and GeoInformatics. The early digital representations of buildings mainly appeared as 3D drawings constructed by CAD software, and the 3D representation of the buildings was only ...
Ivan Kunchev   +2 more
openaire   +1 more source

MPCR-Net: Multiple Partial Point Clouds Registration Network Using a Global Template

open access: yesApplied Sciences, 2021
With advancements in photoelectric technology and computer image processing technology, the visual measurement method based on point clouds is gradually being applied to the 3D measurement of large workpieces. Point cloud registration is a key step in 3D
Shijie Su   +4 more
doaj   +1 more source

Influence of cyclodextrin on the solubility of a classically prepared 2-vinylcyclopropane macromonomer in aqueous solution

open access: yesBeilstein Journal of Organic Chemistry, 2012
A macromonomer 5 consisting of a polymerizable vinylcyclopropane end group and a poly(N-isopropylacrylamide) (poly(NiPAAm)) chain was obtained from amidation of 1-ethoxycarbonyl-2-vinylcyclopropane-1-carboxylic acid (4) with an amino-terminated poly ...
Helmut Ritter   +2 more
doaj   +1 more source

COMPARISON OF UAV IMAGERY-DERIVED POINT CLOUD TO TERRESTRIAL LASER SCANNER POINT CLOUD [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
A small unmanned aerial vehicle (UAV) with survey-grade GNSS positioning is used to produce a point cloud for topographic mapping and 3D reconstruction.
S. Peterson, J. Lopez, R. Munjy
doaj   +1 more source

Self-Ordering Point Clouds

open access: yes2023 IEEE/CVF International Conference on Computer Vision (ICCV), 2023
In this paper we address the task of finding representative subsets of points in a 3D point cloud by means of a point-wise ordering. Only a few works have tried to address this challenging vision problem, all with the help of hard to obtain point and cloud labels.
Yang, P., Snoek, C.G.M., Asano, Y.M.
openaire   +4 more sources

Influence of sodium chloride on the cloud point of polyethoxylate surfactants and estimation of Flory-Huggins model parameters

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2015
In this study, the influence of NaCl on the cloud point of polyethoxylate surfactants from the family of lauryl alcohol polyethoxylates (C12EOn ) and nonylphenol polyethoxylates (NPEOn ) was investigated.
Alessandro Alisson de Lemos-Araújo   +3 more
doaj   +1 more source

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