Results 31 to 40 of about 4,968,550 (330)

Analysis and correction of geometrical error-induced pointing errors of a space laser communication APT system

open access: yesInternational Journal of Optomechatronics, 2021
The geometrical error caused pointing error is an inevitable problem in space satellite laser communication terminals which can affect the pointing accuracy of the APT (acquisition pointing and tracking) system greatly, in order to facilitate the ...
Furui Zhang   +3 more
doaj   +1 more source

A Study on the Effect of Multistage Toolpath in Fabricating a Customized Cranial Implant in Incremental Sheet Metal Forming

open access: yesAl-Khawarizmi Engineering Journal, 2023
Incremental sheet forming (ISF) process offers a high degree of flexibility in the manufacturing of different sheet parts, which makes it an ideal candidate for prototype parts as well as efficient at fabricating various customized products at low ...
Mohamed I. Fahad   +2 more
doaj   +1 more source

Geometrical accuracy evaluation of an affordable 3D printing technology for spine physical models.

open access: yesJournal of clinical neuroscience, 2020
OBJECTIVE The aim of the study is to develop a workflow to establish geometrical quality criteria for 3D printed anatomical models as a guidance for selecting the most suitable 3D printing technologies available in a clinical environment.
P. Éltes   +9 more
semanticscholar   +1 more source

Analytical and experimental investigations on thread milling forces in titanium alloy [PDF]

open access: yes, 2013
The authors would like to gratefully acknowledge the Walter Prototyp tool manufacturer who specially machined the requested tools. The first author would like to thank the support of BRAFITEC/CAPES and the research team in LABOMAP at Arts et Metiers ...
ARAUJO, Anna Carla   +2 more
core   +1 more source

Concept and architecture of a new apparatus for cylindrical form measurement with a nanometric level of accuracy [PDF]

open access: yes, 2012
In relation to the industrial need and to the progress of technology, Laboratoire National de M´etrologie et d’Essais (LNE) would like to improve the measurement of its primary pressure standards, spherical and flick standards.
David, Jean Marie   +5 more
core   +1 more source

Analysis of the Influence of the Geometrical Parameters of the Body Scanner on the Accuracy of Reconstruction of the Human Figure Using the Photogrammetry Technique

open access: yesSensors, 2022
This article concerns the research of the HUBO full-body scanner, which includes the analysis and selection of the scanner’s geometrical parameters in order to obtain the highest possible accuracy of the reconstruction of a human figure.
Maciej Trojnacki   +2 more
doaj   +1 more source

On the Influence of the Tool Path and Intrusion Depth on the Geometrical Accuracy in Incremental Sheet Forming

open access: yesMetals, 2020
Incremental sheet forming (ISF) is a flexible sheet metal forming process to realize products within short time from design to the first produced part. Although fundamental research on ISF has been carried out around the world, ISF still misses commonly ...
R. Schmitz   +3 more
semanticscholar   +1 more source

Induction Heating Validation of Dieless Single-Point Incremental Forming of AHSS

open access: yesJournal of Manufacturing and Materials Processing, 2017
Advanced high-strength steel (AHSS) is subject to a high deformation in geometry due to spring-back and high forces during forming. Therefore, dieless single-point incremental forming supported by induction heating was introduced.
Amar Al-Obaidi   +2 more
doaj   +1 more source

A new hybrid geometrical optics and radiance based scattering model for ray tracing applications [PDF]

open access: yes, 2005
This paper presents a new hybrid geometrical optics (GO) and radiance based rough surface scattering model for use in ray tracing propagation models. The reflectance model includes the effects of both specular and diffuse reflection.
Nix, AR, Ng, KH, Tameh, EK
core   +1 more source

Deep learning geometrical potential for high-accuracy ab initio protein structure prediction

open access: yesiScience, 2022
Summary: Ab initio protein structure prediction has been vastly boosted by the modeling of inter-residue contact/distance maps in recent years. We developed a new deep learning model, DeepPotential, which accurately predicts the distribution of a ...
Yang Li   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy