Results 51 to 60 of about 537,671 (190)

The Betti poset in monomial resolutions [PDF]

, 2014
Let $P$ be a finite partially ordered set with unique minimal element $\hat{0}$. We study the Betti poset of $P$, created by deleting elements $q\in P$ for which the open interval $(\hat{0}, q)$ is acyclic. Using basic simplicial topology, we demonstrate
Clark, Timothy B. P., Mapes, Sonja
core  

Feature-Based Modeling of Subject-Specific Lower Limb Skeletons from Medical Images

Biomechanics
Background/Objectives: In recent years, 3D shape models of the human body have been used for various purposes. In principle, CT and MRI tomographic images are necessary to create such models.
Sentong Wang, Itsuki Fujita, Koun Yamauchi, Kazunori Hase   +3 more
doaj   +1 more source

A Mesh Deformation Method for CFD-Based Hull form Optimization

Journal of Marine Science and Engineering, 2020
Computational fluid dynamics (CFD) is an effective tool for ship resistance prediction and hull form optimization. A three-dimensional volume mesh is essential for CFD simulation, and mesh generation requires much time and effort.
Kwang-Leol Jeong, Se-Min Jeong
doaj   +1 more source

Modeling of multifunctional deformable porous scaffolds for soft tissue engineering [PDF]

, 2012
Porous membranes/scaffolds such as guided tissue regeneration (GTR) membranes, cell sheets, tissue matrices or polymeric meshes are being widely used in soft tissue engineering to regenerate damaged, diseased tissue or wound.
Khoda, AKM, Koç, Bahattin
core  

Nonassociative Snyder phi4 Quantum Field Theory [PDF]

, 2017
In this article we define and quantize a truncated form of the nonassociative and noncommutative Snyder phi^4 field theory using the functional method in momentum space.
Meljanac, Stjepan, Mignemi, Salvatore, Trampetic, Josip, You, Jiangyang   +3 more
core   +2 more sources

Seamlessly Natural: Image Stitching with Natural Appearance Preservation

Technologies
Conventional image stitching pipelines predominantly rely on homographic alignment, whose planar assumption often breaks down in dual-camera configurations capturing non-planar scenes, producing geometric warping, bulging, and structural distortion.
Gaetane Lorna N. Tchana, Damaris Belle M. Fotso, Antonio Hendricks, Christophe Bobda   +3 more
doaj   +1 more source

The outliers of a deformed Wigner matrix

, 2014
We derive the joint asymptotic distribution of the outlier eigenvalues of an additively deformed Wigner matrix $H$. Our only assumptions on the deformation are that its rank be fixed and its norm bounded.
Knowles, Antti, Yin, Jun
core   +1 more source

Locality-Preserving Free-Form Deformation

The Visual Computer
Abstract This paper proposes a method to estimate the locations of grid handles in free-form deformation (FFD) while preserving the local shape characteristics of the 2D/3D input model embedded into the grid, named locality-preserving FFD (lp-FFD). Users first specify some vertex locations in the input model and grid handle locations.
Fukusato, Tsukasa, Maejima, Akinobu, Igarashi, Takeo   +2 more
openaire   +2 more sources

Formation of the internal structure of solids under severe action

, 2009
On the example of a particular problem, the theory of vacancies, a new form of kinetic equations symmetrically incorporation the internal and free energies has been derived.
A. Cadec, D. Frenkel, E. Kroner, H. W. Han, I. Bazarov, J. A. Reisslend, J. I. Frenkel, L. Landau, L. Landau, L. Mandelshtam, L. Metlov, Leonid S. Metlov, M. Iwaniec, M. Y. Gutkin, P. Glansdorff, S. R. Bodner, V. Etkin, V. Kopylov, V. V. Rybin   +18 more
core   +1 more source

Aerodynamic Shape Optimization of Wing–Fuselage Intersection for Minimum Interference Drag

Aerospace
Interference drag in wing–fuselage intersection regions is a complex aerodynamic phenomenon where secondary flows and separation conditions might occur if not properly addressed in the aircraft design.
Nuno M. B. Matos, André C. Marta
doaj   +1 more source