Results 61 to 70 of about 694,034 (385)

Continuous shading and its fast update in fully analytic triangular-mesh-based computer generated hologram.

open access: yesOptics Express, 2015
Fully analytic mesh-based computer generated hologram enables efficient and precise representation of three-dimensional scene. Conventional method assigns uniform amplitude inside individual mesh, resulting in reconstruction of the three-dimensional ...
Jae-Hyeung Park   +8 more
semanticscholar   +1 more source

Geodesic paths on triangular meshes [PDF]

open access: yesProceedings. 17th Brazilian Symposium on Computer Graphics and Image Processing, 2004
We present a new algorithm to compute a geodesic path over a triangulated surface. Based on Sethian's (1996) fast marching method and Polthier's (1998) straightest geodesics theory, we are able to generate an iterative process to obtain a good discrete geodesic approximation. It can handle convex and nonconvex surfaces as well.
D. Martinez, L. Velho, P.C. Carvalho
openaire   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

A Novel Computational Paradigm for Reconstructing Solid CAD Features from a Segmented Manifold Triangular Mesh

open access: yesApplied Sciences
We introduce a novel computational paradigm for reconstructing solid computer-aided design (CAD) features from the surface of a segmented manifold triangular mesh.
Feiyu Zhao
doaj   +1 more source

STEGANOGRAPHY TECHNIQUE ON CLOSED 3D TRIANGULAR MESHES

open access: yesTạp chí Khoa học Đại học Đà Lạt, 2016
This paper proposes a structure presentation of 3D mesh and closed mesh, which can apply for hidden messages. Based on shifting value coordinates of vertices, the technique allows information hidden on the triangular 3D mesh model.
Thái Duy Quý
doaj   +1 more source

A Virtual Element Method for 2D linear elastic fracture analysis

open access: yes, 2018
This paper presents the Virtual Element Method (VEM) for the modeling of crack propagation in 2D within the context of linear elastic fracture mechanics (LEFM).
Nguyen-Thanh, Vien Minh   +4 more
core   +1 more source

Novel quadratic Bézier triangular and tetrahedral elements using existing mesh generators: Applications to linear nearly incompressible elastostatics and implicit and explicit elastodynamics

open access: yesInternational Journal for Numerical Methods in Engineering, 2018
In this paper, we present novel techniques of using quadratic Bézier triangular and tetrahedral elements for elastostatic and implicit/explicit elastodynamic simulations involving nearly incompressible linear elastic materials. A simple linear mapping is
C. Kadapa
semanticscholar   +1 more source

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

open access: yesMolecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung   +17 more
wiley   +1 more source

Tetrisation of triangular meshes and its application in shape blending

open access: yes, 2016
The As-Rigid-As-Possible (ARAP) shape deformation framework is a versatile technique for morphing, surface modelling, and mesh editing. We discuss an improvement of the ARAP framework in a few aspects: 1. Given a triangular mesh in 3D space, we introduce
M Alexa   +8 more
core   +1 more source

Extension of the analytic nodal diffusion solver ANDES to triangular-Z geometry and coupling with COBRA-IIIc for hexagonal core analysis. [PDF]

open access: yes, 2010
In this paper the extension of the multigroup nodal diffusion code ANDES, based on the Analytic Coarse Mesh Finite Difference (ACMFD) method, from Cartesian to hexagonal geometry is presented, as well as its coupling with the thermal–hydraulic (TH) code ...
Aragonés   +16 more
core   +2 more sources

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