Results 71 to 80 of about 320,765 (312)

Laser Powder Bed Fusion of Alumina: Effects of Scanning Strategies on External and Internal Defects

Advanced Engineering Materials, EarlyView.
This study investigates how scanning strategies affect pure alumina in laser powder bed fusion. Linear 45° scanning yields uniform surfaces but high porosity, while the island‐concentric strategy provides higher density with through‐holes favorable for infiltration. Findings highlight pathways toward optimizing defect‐free alumina parts.
Mohamed Abdelmoula, Gökhan Küçüktürk, Duran Kaya, David Grossin, Christophe Tenailleau, Benjamin Duployer, Enrique Juste, Fabrice Petit   +7 more
wiley   +1 more source

Screened poisson surface reconstruction [PDF]

ACM Transactions on Graphics, 2013
Poisson surface reconstruction creates watertight surfaces from oriented point sets. In this work we extend the technique to explicitly incorporate the points as interpolation constraints. The extension can be interpreted as a generalization of the underlying mathematical framework to a screened Poisson equation. In contrast to other image and geometry
Michael M. Kazhdan, Hugues Hoppe
openaire   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Surface Reconstruction for Three-Dimensional Rockfall Volumetric Analysis

, 2019
Laser scanning is routinely being used for the characterization and management of rockfall hazards. A key component of many studies is the ability to use the high-resolution topographic datasets for detailed volume estimates.
Hutchinson, D. Jean, Bonneau, David, DiFrancesco, Paul-Mark   +2 more
core   +1 more source

Absolute height measurement of specular surfaces with modified active fringe reflection photogrammetry [PDF]

, 2014
Deflectometric methods have been studied for more than a decade for slope measurement of specular freeform surfaces through utilization of the deformation of a sample pattern after reflection from a tested sample surface.
Zhang, Zonghua, Ren, Hongyu, Xiangqian Jiang, Hongyu Ren, Jiang, Xiangqian, Zonghua Zhang, Zhang, Zhonghua, Feng Gao, Gao, Feng   +8 more
core   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Efficient Multiresolution Counterparts to Variational Methods for Surface Reconstruction

, 1998
: Variational methods have been employed with considerable success in computer vision, particularly for surface reconstruction problems. Formulations of this type require the solution of computationally complex Euler-Lagrange partial differential ...
Running Head, Multiresolution Surface Reconstruction, William C. Karl, Alan S. Willsky, Veronica Dr, Paul W. Fieguth   +5 more
core  

Surface topography characterization using 3D stereoscopic reconstruction of SEM images

, 2018
A major drawback of the optical microscope is its limitation to resolve finer details. Many microscopes have been developed to overcome the limitations set by the diffraction of visible light.
Krishna, Amogh,, Rosén, B. -G,, Rosén, Bengt Göran,, Amogh Vedantha Krishna, Reddy, Vijeth Venkataram,, Olena Flys, B G Rosén, Vijeth V Reddy, Flys, Olena,, Vedantha Krishna, Amogh,, Reddy, Vjeth,   +10 more
core   +1 more source

Field Report from Collaborative Research Center 1625: Heterogeneous Research Data Management Using Ontology Representations

Advanced Engineering Materials, EarlyView.
A unified research data management framework for heterogeneous materials data is presented. The system integrates multimodal datasets using ontologies and knowledge graphs, enabling interoperability and FAIR (findable, accessible, interoperable, reusable) data principles. By linking data across scales and workflows, it supports reproducible, Artifitial
Doaa Mohamed, Samuel García Vázquez, Behnam Mardani, Victor Dudarev, Alfred Ludwig, Maribel Acosta, Markus Stricker   +6 more
wiley   +1 more source

Correlated development of a (2 x 2) reconstruction and a charge accumulation layer on the InAs(111)-Bi surface

, 2011
We have studied the formation of a Bi-induced (2 x 2) reconstruction on the InAs(111)B surface. In connection to the development of the (2 x 2) reconstruction, a two dimensional charge accumulation layer located at the bottom of the InAs conduction band ...
Mats Göthelid, Karlsson, Ulf O., Szamota-Leandersson, Karolina, Leandersson, Mats,, Szamota-Leandersson, Karolina,, Karolina Szamota-Leandersson, Ulf O. Karlsson, Göthelid, Mats,, Karlsson, Ulf O.,, Mats Leandersson, Gothelid, Mats, Lund University., Leandersson, Mats   +12 more
core   +1 more source