Results 11 to 20 of about 9,293 (214)

High accuracy geometric Hermite interpolation [PDF]

open access: yesComputer Aided Geometric Design, 1987
In natürlicher Verallgemeinerung der Hermiteschen Standardinterpolation werden für parametrisierte ebene Kurven interpolierende kubische Splines p(i) bestimmt. Dabei sind die Knotenpunkte und in jedem Knotenpunkt Tangente und Krümmung vorgeschrieben. Die Komponenten von p(i) sind kubische Polynome auf den Parameterintervallen \((i,i+1)\).
Carl de Boor   +2 more
openaire   +2 more sources

The Significance of Cross-Sectional Shape Accuracy and Non-Linear Elasticity on the Numerical Modelling of Cerebral Veins under Tensile Loading

open access: yesBiology, 2023
Traumatic brain injury (TBI) is a serious global health issue, leading to serious disabilities. One type of TBI is acute subdural haematoma (ASDH), which occurs when a bridging vein ruptures. Many numerical models of these structures, mainly based on the
Fábio A. O. Fernandes   +1 more
doaj   +1 more source

Optimizing the geometrical accuracy of curvilinear meshes [PDF]

open access: yesJournal of Computational Physics, 2016
This paper presents a method to generate valid high order meshes with optimized geometrical accuracy. The high order meshing procedure starts with a linear mesh, that is subsequently curved without taking care of the validity of the high order elements.
Thomas Toulorge   +2 more
openaire   +4 more sources

Current Concept of Geometrical Accuracy [PDF]

open access: yesResearch Papers Faculty of Materials Science and Technology Slovak University of Technology, 2014
Abstract Within the solving VEGA 1/0615/12 research project "Influence of 5-axis grinding parameters on the shank cutter´s geometric accuracy", the research team will measure and evaluate geometrical accuracy of the produced parts. They will use the contemporary measurement technology (for example the optical 3D scanners).
Augustín Görög, Ingrid Görögová
openaire   +1 more source

Integrating Stereo Images and Laser Altimetry Points Derived from the Same Satellite for High-Accuracy Stereo Mapping

open access: yesRemote Sensing, 2023
At present, some mapping satellites, such as GaoFen-7 and ZiYuan3-03, are equipped with both optical stereo cameras and laser altimeters that can synchronously obtain stereo images and sparse ground laser altimetry points (LAPs).
Xinming Tang   +3 more
doaj   +1 more source

Improving Geometric Accuracy of 3D Printed Parts Using 3D Metrology Feedback and Mesh Morphing

open access: yesJournal of Manufacturing and Materials Processing, 2020
Additive manufacturing (AM), also known as 3D printing, has gained significant interest due to the freedom it offers in creating complex-shaped and highly customized parts with little lead time. However, a current challenge of AM is the lack of geometric
Moustapha Jadayel, Farbod Khameneifar
doaj   +1 more source

A Feasibility Study of Deep Learning-Based Auto-Segmentation Directly Used in VMAT Planning Design and Optimization for Cervical Cancer

open access: yesFrontiers in Oncology, 2022
PurposeTo investigate the dosimetric impact on target volumes and organs at risk (OARs) when unmodified auto-segmented OAR contours are directly used in the design of treatment plans. Materials and MethodsA total of 127 patients with cervical cancer were
Along Chen   +6 more
doaj   +1 more source

Quality Evaluation of Digital Twins Generated Based on UAV Photogrammetry and TLS: Bridge Case Study

open access: yesRemote Sensing, 2021
In the current modern era of information and technology, emerging remote advancements have been widely established for detailed virtual inspections and assessments of infrastructure assets, especially bridges.
Masoud Mohammadi   +5 more
doaj   +1 more source

Geometric Accuracy of Sentinel-1A and 1B Derived from SAR Raw Data with GPS Surveyed Corner Reflector Positions

open access: yesRemote Sensing, 2018
The geometric accuracy of synthetic aperture radar (SAR) data is usually derived from level-1 products using accurately surveyed corner reflector positions.
Kersten Schmidt   +3 more
doaj   +1 more source

Geometric Accuracy Evaluation Method for Subway Stations Based on 3D Laser Scanning

open access: yesApplied Sciences, 2022
The rapid development of three-dimensional (3D) laser scanning technology has provided a new technical means for the geometric accuracy evaluation of subway stations.
Quankai Wang   +5 more
doaj   +1 more source

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