Results 21 to 30 of about 4,846,533 (293)

Simulation of Adaptive Sampling in Profile Measurement for Structured Surfaces [PDF]

open access: yes, 2010
Adaptive sampling is a novel sampling design that can redirect sampling effort during a survey in response to the observed values. Its application on surface texture measurement is new, such as working with stylus profilometers.
Wang, Jian, Blunt, Liam, Jiang, Xiang
core   +4 more sources

The Impact of Process Parameters on Surface Roughness and Dimensional Accuracy during CO2 Laser Cutting of PMMA Thin Sheets

open access: yesJournal of Manufacturing and Materials Processing, 2021
This study investigated the impact of the laser speed and power, and the position and orientation of the samples, on the average surface roughness (Ra) and dimensional accuracy (DA) during CO2 laser cutting of polymethyl methacrylate (PMMA) thin sheets ...
Konstantinos Ninikas   +2 more
doaj   +1 more source

A Comparison of Dimensional Accuracy of Addition Silicone of Different Consistencies with Two Different Spacer Designs - In-vitro Study [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2014
Introduction: Dimensional accuracy of impression materials is crucial for the production of working casts in Fixed Prosthodontics. The accurate replication of tooth preparations and their arch position requires impression materials that exhibit ...
Suprabha Rathee   +6 more
doaj   +1 more source

Development of a novel forming method to restrain wall curvature for stamping products using general purpose ultra-high tensile strength steel sheets

open access: yesNihon Kikai Gakkai ronbunshu, 2023
In recent years, automobile manufacturing requires both weight reduction for environmental measures and high strength for safety. For this reason, the use of ultra-high tensile strength steel sheets for frame components is increasing. For the application
Hideto KATSUMA
doaj   +1 more source

Distortion Analysis of Thin-Walled Investment Castings [PDF]

open access: yesArchives of Foundry Engineering, 2023
Dokra casting is famous for its Artistic value to the world but it is also sophisticated engineering. The technique is almost 4500 years old. It is practiced by the tribal artisans of India.
R. Mandal   +5 more
doaj   +1 more source

Dimensional Accuracy of Electron Beam Powder Bed Fusion with Ti-6Al-4V

open access: yesDesigns, 2023
While much of additive manufacturing (AM) research is focused on microstructure, material properties, and defects, there is much less research in regards to understanding how well the part coming out of the machine matches the 3D model it is based on, as
Eric Bol, Mamidala Ramulu
doaj   +1 more source

Optimizing Surface Finish and Dimensional Accuracy in 3D Printed Free-Form Objects

open access: yesJurnal Optimasi Sistem Industri, 2023
3D printing of free-form objects presents inherent complexity due to their organic and intricate shapes. Designers engage with such objects, considering a range of factors including aesthetics, engineering viability, and ergonomic comfort. This research
Farid Wajdi, Mohd Sazli Saad
doaj   +1 more source

Comparing Between Different Impressions Materials and Techniques for the Accuracy of Implant Position Transfer [PDF]

open access: yesAl-Rafidain Dental Journal
Aims: 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

A computational and theoretical investigation of the accuracy of quasicontinuum methods [PDF]

open access: yes, 2011
We give computational results to study the accuracy of several quasicontinuum methods for two benchmark problems – the stability of a Lomer dislocation pair under shear and the stability of a lattice to plastic slip under tensile loading.
Luskin, Mitchell Barry   +7 more
core   +1 more source

Dimensional Accuracy of Nanoparticles Reinforced Denture Base Materials [PDF]

open access: yesAl-Rafidain Dental Journal
Aims: 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
doaj   +1 more source

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