Results 41 to 50 of about 18,723 (229)

Combining monoenergetic extrapolations from dual-energy CT with iterative reconstructions: reduction of coil and clip artifacts from intracranial aneurysm therapy

, 2018
PURPOSE To compare and to combine iterative metal artifact reduction (MAR) and virtual monoenergetic extrapolations (VMEs) from dual-energy computed tomography (DECT) for reducing metal artifacts from intracranial clips and coils.
Michels, Lars, Regli, Luca, Alkadhi, Hatem, Burkhardt, Jan-Karl, Valavanis, Antonios, Stocker, Daniel, Hinzpeter, Ricarda, Luca Regli, Lars Michels, Daniel Stocker, Sebastian Winklhofer, Antonios Valavanis, Hatem Alkadhi, Winklhofer, Sebastian; https://orcid.org/, Ricarda Hinzpeter, Gerasimos Baltsavias, Jan-Karl Burkhardt, Baltsavias, Gerasimos   +17 more
core   +1 more source

Characterization of Aluminized Layers on Inconel‐738 Alloy: Microstructure, Modeling of Aluminizing Kinetics, and Thermal Behavior

Advanced Engineering Materials, EarlyView.
This study explored how effective nickel aluminide coatings are obtained in providing oxidation resistance applied to the Inconel 738 alloy, modeling with diffusion models. In the present study, kinetics and thermal behavior of the Inconel 738 alloy were studied by the low‐temperature thermoreactive aluminizing process, which was carried out at 625°C ...
Gozde Celebi Efe, Tuba Yener, Suayb Cagri Yener, Mourad Keddam, Cuma Bindal   +4 more
wiley   +1 more source

Performance Analysis of Abradable Coating Systems for Aircraft Gas Turbines

Advanced Engineering Materials, EarlyView.
Three CoNiCrAlY/YSZ/MgAl2O4 abradable liner configurations on a nickel‐superalloy are evaluated by thermal‐gradient cycling and incursion tests. Laser ablation of the bondcoat and/or Y2O3‐stabilized ZrO2 (YSZ) intermediate layer increases mechanical interlocking and bonding for thick topcoats.
Hanna Heyl, Daniel Emil Mack, Martin Tandler, Susanne Schrüfer, Robert Vaßen   +4 more
wiley   +1 more source

Failure strength of human vertebrae: prediction using bone mineral density measured by DXA and bone volume by micro-CT [PDF]

, 2012
Significant relationships exist between areal bone mineral density (BMD) derived from dual energy X-ray absorptiometry (DXA) and bone strength. However, the predictive validity of BMD for osteoporotic vertebral fractures remains suboptimal.
Perilli, E., Codrington, J., Kantor, S., Wark, J., Fazzalari, N., Briggs, A., Parkinson, I., Briggs, Andrew   +7 more
core   +1 more source

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

Advanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni, Thalita Marcolan Valverde, Talita Martins, Guilherme Mattos Jardim Costa, Alfredo Miranda de Goes, Marcello Rosa Dumont, Eduardo Henrique Martins Nunes, Marivalda de Magalhães Pereira   +7 more
wiley   +1 more source

Approximate calibration method.

, 2022
(a) The copper ring phantom was kept parallel and orthogonal to the rotary axis in the micro-CT scanner. The detector’s center point(U0, V0) was estimated approximately from the radiographic images.
Swathi Lakshmi Balasubramanian (12078093), Ganapathy Krishnamurthi (3908176)   +1 more
core   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Investigation of Imaging Capabilities for Dual Cone-Beam Computed Tomography [PDF]

, 2013
A bench-top dual cone-beam computed tomography (CBCT) system was developed consisting of two orthogonally placed 40x30 cm2 flat-panel detectors and two conventional X-ray tubes with two individual high-voltage generators sharing the same rotational axis.
Li, Hao
core  

PIE-ARNet: Prior Image Enhanced Artifact Removal Network for Limited-Angle DECT

, 2022
International audienceDual-energy computed tomography (DECT) is of great clinical significance because it can simultaneously visualize the internal structure of the scanned object and provide material-specific information.
Zhang, Yikun, Hu, Dianlin, Quan, Guotao, Xiang, Jun, Coatrieux, Gouenou, Chen, Yang, Zhu, Jian, Lyu, Tianling, Luo, Shouhua   +8 more
core   +1 more source

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source