Results 11 to 20 of about 365 (70)

Normal approximations of regular curves and surfaces [PDF]

open access: yes, 2015
Bezier curves and surfaces are two very useful tools in Geometric Modeling, with many applications. In this paper, we will offer a new method to provide approximations of regular curves and surfaces by Bezier ones, with the corresponding examples ...
Carriazo Rubio, Alfonso   +2 more
core   +3 more sources

Approximation by planar elastic curves [PDF]

open access: yes, 2016
We give an algorithm for approximating a given plane curve segment by a planar elastic curve. The method depends on an analytic representation of the space of elastic curve segments, together with a geometric method for obtaining a good initial guess for
Brander, David   +2 more
core   +3 more sources

A level set based method for fixing overhangs in 3D printing [PDF]

open access: yes, 2017
3D printers based on the Fused Decomposition Modeling create objects layer-by-layer dropping fused material. As a consequence, strong overhangs cannot be printed because the new-come material does not find a suitable support over the last deposed layer ...
Cacace, Simone   +2 more
core   +2 more sources

Verifying of reciprocal relations for nonlinear quadripole in unsteady mode

open access: yesResults in Physics, 2017
This paper deals with experimental verification of reciprocal relations of nonlinear quadripole for unsteady mode in external magnetic field. We find out transients of measured voltages in the quadripole after current switch.
Alexey Bardin   +3 more
doaj   +1 more source

Adsorption of binary polymer mixtures with different topology on a wall

open access: yesResults in Physics, 2019
We consider a binary mixture of two polymers with different architecture, consisting of linear and cyclic chains. We study this system by performing extensive molecular dynamics computer simulations of bead-spring models, which possess the open-chain and
Francis M. Gaitho, Giuseppe Pellicane
doaj   +1 more source

Quantum coherence of Gaussian states in curved spacetime

open access: yesResults in Physics, 2019
We study quantum coherence of two-mode Gaussian states in the background of an asymptotically flat black hole. We find that quantum coherence between mode A observed by an inertial observer Alice and mode B observed by an accelerated Bob who hovers near ...
Shu-Min Wu, Hao-Sheng Zeng, Tong-Hua Liu
doaj   +1 more source

On saturation effect for linear shape-preserving approximation in Sobolev spaces [PDF]

open access: yes, 2015
Objectives Little is known about patterns and correlates of Complementary Health Approaches (CHAs) in chronic pain populations, particularly in rural, underserved communities.
Feinberg, Termeh   +4 more
core   +5 more sources

Enhanced double random phase encryption of quantum images

open access: yesResults in Physics, 2019
We improve the double random phase encryption (DRPE) algorithm to make the outcome of DRPE algorithm as uniformly mixed as possible via applying scrambling transform.
Shiping Du   +3 more
doaj   +1 more source

Circular Arc Approximation by Quartic H-Bézier Curve [PDF]

open access: yes, 2017
The quartic H-Bézier curve is used for the approximation of circular arcs. It has five control points and one positive real free parameter.
Hussain, Malik Zawwar   +3 more
core   +3 more sources

Quantum (q, h)-Bézier surfaces based on bivariate (q, h)-blossoming

open access: yesDemonstratio Mathematica, 2019
We introduce the (q, h)-blossom of bivariate polynomials, and we define the bivariate (q, h)-Bernstein polynomials and (q, h)-Bézier surfaces on rectangular domains using the tensor product.
Jegdić Ilija   +2 more
doaj   +1 more source

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