Results 21 to 30 of about 8,548,248 (305)
Polymers, 2022 The printing variable least addressed in previous research aiming to reveal the effect of the FFF process parameters on the printed PLA part’s quality and properties is the filament color.
D. Frunzaverde +6 more
semanticscholar +1 more source
Comparing Between Different Impressions Materials and Techniques for the Accuracy of Implant Position Transfer [PDF]
Al-Rafidain Dental JournalAims: This study aimed to compare the accuracy of implant position transfer using three impression materials with two techniques. Materials and methods: A master model was fabricated with two parallel dental implants at the first and second premolars ...
Ahmed Abduljawad Ismail Alubaidi +2 more
doaj +1 more source
Journal of materials engineering and performance (Print), 2022 The shortcoming of conventional manufacturing (CM) is that it cannot manufacture geometrically complex parts with high repeatability and good surface properties.
R. Chand +4 more
semanticscholar +1 more source
Advances in Manufacturing, 2021 Additive manufacturing (AM) technologies such as fused deposition modeling (FDM) rely on the quality of manufactured products and the process capability.
O. Mohamed, S. Masood, J. Bhowmik
semanticscholar +1 more source
Dimensional Accuracy of Nanoparticles Reinforced Denture Base Materials [PDF]
Al-Rafidain Dental JournalAims: The study aims to evaluate the effect of the addition of salinized zirconium oxide (ZrO2) and silicon oxide (SiO2) nanoparticles at two concentrations (1% and 3% by weight) on the dimensional accuracy of the heat-cured denture base material ...
Ghadaq M. Younis, Radhwan H. Hasan
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Materials, 2021 Previous studies on accuracy of three-dimensional (3D) printed model focused on full arch measurements at few points. The aim of this study was to examine the dimensional accuracy of 3D-printed models which were teeth-prepped for three-unit fixed ...
Soo-Yeon Yoo +4 more
semanticscholar +1 more source
Materials & Design (1980-2015), 2021 Bulk metallic glasses (BMGs) are high-strength, highly elastic materials due to their disordered atomic structure. Because BMGs require sufficiently high cooling rates to bypass crystallization, laser-based additive manufacturing (AM) methods have ...
N. Sohrabi +11 more
semanticscholar +1 more source
Accuracy assessment for high-dimensional linear regression [PDF]
The Annals of Statistics, 2018 This paper considers point and interval estimation of the $\ell_q$ loss of an estimator in high-dimensional linear regression with random design. We establish the minimax rate for estimating the $\ell_{q}$ loss and the minimax expected length of confidence intervals for the $\ell_{q}$ loss of rate-optimal estimators of the regression vector, including ...
Cai, Tony, Guo, Zijian
openaire +4 more sources
European Oral Research, 2021 Purpose The present study compared the dimensional accuracy of vinyl polyether silicone (VPES) and polyvinyl siloxane (PVS) impression materials used for non-splinted (NS) and splinted (S) direct open-tray impression techniques for multiple implants ...
Rohini Rajendran +3 more
doaj +1 more source
, 2021 Down-facing surfaces are one of the most challenging features in metal parts produced by laser powder bed fusion (LPBF). A combination of reasons, primary of which are residual stresses and overheating cause these features to have the worst surface ...
Amal Charles +5 more
semanticscholar +1 more source