Results 11 to 20 of about 168,150,866 (290)

On-line segmentation of freehand sketches by knowledge-based nonlinear thresholding operations [PDF]

open access: yes, 2001
This paper describes an on-line procedure for segmenting freehand sketches into 2D primitives and smooth curves by knowledge-based nonlinear thresholding operations. Drawing position, direction, speed and acceleration information is used for establishing
Qin, SF, Wright, DK, Jordanov, IN
core   +7 more sources

Experimental validation of the mechanical coupling response for hygro-thermally curvature-stable laminated composite materials [PDF]

open access: yes, 2011
Stacking sequence configurations for hygro-thermally curvature-stable (HTCS) laminates have recently been identified in 9 classes of coupled laminate with standard ply angle orientations +45, "1245, 0 and ...
Shamsudin, M.H.   +3 more
core   +9 more sources

Differential phase tracking applied to Bragg gratings in multi-core fibre for high accuracy curvature measurement [PDF]

open access: yes, 2006
High resolution quasi-static and dynamic curvature measurements are made by differential interferometric phase measurement of fibre Bragg gratings in separate cores of a multi-core fibre.
Flockhart, G M H   +2 more
core   +4 more sources

Continuous Measurement of Three-Dimensional Root Canal Curvature Using Cone-Beam Computed and Micro-Computed Tomography: A Comparative Study

open access: yesDentistry Journal, 2020
The knowledge of root canal curvature is crucial regarding the prevention of ledge formation, root perforation and the possibility of endodontic instruments’ fracture during endodontic treatments.
Michael Kucher   +5 more
doaj   +1 more source

Ricci Curvature on Birth-Death Processes

open access: yesAxioms, 2023
In this paper, we study curvature dimension conditions on birth-death processes which correspond to linear graphs, i.e., weighted graphs supported on the infinite line or the half line. We give a combinatorial characterization of Bakry and Émery’s CD(K,n)
Bobo Hua, Florentin Münch
doaj   +1 more source

Spacelike developable surfaces through a common line of curvature in Minkowski 3-space

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2015
This paper studies the problem to construct a spacelike developable surface possessing a given non-null parametric curve as the line of curvature in Minkowski 3-space.
Cai-Yun LI, Chun-Gang ZHU, Ren-Hong WANG
doaj   +1 more source

The curvature of the QCD phase transition line [PDF]

open access: yesProceedings of The XXVI International Symposium on Lattice Field Theory — PoS(LATTICE 2008), 2009
We determine the curvature of the phase transition line in the mu-T plane through an analysis of various observables, including the Polyakov loop, the quark number susceptibilities and the susceptibility of the chiral condensate. The second derivative of these quantities with respect to mu was calculated.
Endrödi, Gergely   +3 more
openaire   +4 more sources

Bisector Surfaces Through A Common Line of Curvatures and Its Classifications

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2018
In this paper, we study the Bisector surface, which definesthe line of curvature on a surface play an importance role. Firstly, theBisector surface constructed by a point and a space curve given in Euclidean3-space.
Muhammed Talat Sarıaydın
doaj   +1 more source

Continuous-Curvature Path Generation Using Fermat's Spiral [PDF]

open access: yesModeling, Identification and Control, 2013
This paper proposes a novel methodology, based on Fermat's spiral (FS), for constructing curvature-continuous parametric paths in a plane. FS has a zero curvature at its origin, a property that allows it to be connected with a straight line smoothly ...
Anastasios M. Lekkas   +3 more
doaj   +1 more source

Effect of Plate Curvature on Heat Source Distribution in Induction Line Heating for Plate Forming

open access: yesApplied Sciences, 2020
Line heating is an essential process in the formation of ship hull plates with a complex curvature. Electromagnetic induction heating is widely used in the line heating process.
Lichun Chang   +5 more
doaj   +1 more source

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