Results 1 to 10 of about 104,440 (163)
Tiny-Machine-Learning-Based Supply Canal Surface Condition Monitoring [PDF]
SensorsThe South-to-North Water Diversion Project in China is an extensive inter-basin water transfer project, for which ensuring the safe operation and maintenance of infrastructure poses a fundamental challenge.
Chengjie Huang +2 more
doaj +2 more sources
The implicit equation of a canal surface
Journal of Symbolic Computation, 2009 A canal surface is an envelope of a one parameter family of spheres. In this paper we present an efficient algorithm for computing the implicit equation of a canal surface generated by a rational family of spheres. By using Laguerre and Lie geometries, we relate the equation of the canal surface to the equation of a dual variety of a certain curve in 5-
Dohm, Marc, Zube, Severinas
exaly +4 more sources
In vitro assessment of geometric characteristics in canal preparation using nickel-titanium files used for minimal invasiveness: an experimental study [PDF]
Restorative Dentistry & EndodonticsObjectives This study aimed to assess geometric characteristics in canal preparation using nickel-titanium (NiTi) files used for minimal invasiveness. Methods Thirty J-shaped simulated canals in resin blocks were instrumented with either TruNatomy (TR ...
EunJin Jang +2 more
doaj +2 more sources
Nitrogen, 2021 Fine-grained austenitic stainless steels (FGSS) were plasma nitrided below 700 K to describe their microstructure evolution during the nitrogen supersaturation process and to investigate the post-stressing effect on the microstructure and mechanical ...
Abdelrahman Farghali +2 more
doaj +1 more source
Comparative evaluation of dentin volume removal and centralization of the root canal after shaping with the ProTaper Universal, ProTaper Gold, and One-Curve instruments using micro-CT [PDF]
Journal of Dental Research, Dental Clinics, Dental Prospects, 2021 Background. The main goal of our study was to assess the volume of dentin removed and transportation in root canals using ProTaper Universal (PTU), ProTaper Gold (PTG) and One-Curve (OC).
Hatice Yalniz +5 more
doaj +1 more source
Classifications of Canal Surfaces with the Gauss Maps in Minkowski 3-Space
Mathematics, 2020 In this work, we study the canal surfaces foliated by pseudo spheres S12 along a Frenet curve in terms of their Gauss maps in Minkowski 3-space. Such kind of surfaces with pointwise 1-type Gauss maps are classified completely.
Jinhua Qian +3 more
doaj +1 more source
Infrastructures, 2022 The present study focused on the development and application of two computer numerical models, namely, a seepage model developed using SEEP/W software and a groundwater model developed using Visual MODFLOW software.
Muhammad Aslam +7 more
doaj +1 more source
Surfaces of Revolution and Canal Surfaces with Generalized Cheng–Yau 1-Type Gauss Maps
Mathematics, 2020 In the present work, the notion of generalized Cheng–Yau 1-type Gauss map is proposed, which is similar to the idea of generalized 1-type Gauss maps. Based on this concept, the surfaces of revolution and the canal surfaces in the Euclidean three-space ...
Jinhua Qian +3 more
doaj +1 more source
Symmetries of canal surfaces and Dupin cyclides [PDF]
Computer Aided Geometric Design, 2018 27 ...
Juan Gerardo Alcázar +2 more
openaire +3 more sources
Dental Research Journal, 2023 Background: A successful endodontic treatment requires a comprehensive knowledge of the root canal morphology. This study compared the diagnostic accuracy of cone-beam computed tomography (CBCT) and the sectioning technique for the assessment of ...
Mohammad Yazdizadeh +3 more
doaj +1 more source