Results 21 to 30 of about 6,990 (214)

H-triangle with k interior H-points and 3k+5 boundary H-points

open access: yesJournal of Hebei University of Science and Technology, 2023
In order to study the boundary characteristics and geometric structure of an H-polygon with k interior H-points,the relationship between the interior H-points and boundary H-points of the H-triangle in a regular hexagonal Archimedean tiling was studied.
Weili ZHU, Xianglin WEI
doaj   +1 more source

Packing problems on generalised regular grid: Levels of abstraction using integer linear programming

open access: yesGraphical Models, 2023
Packing a designated set of shapes on a regular grid is an important class of operations research problems that has been intensively studied for more than six decades. Representing a d-dimensional discrete grid as Zd, we formalise the generalised regular
Hao Hua, Benjamin Dillenburger
doaj   +1 more source

The Relation Between Diamond Tiling and Hexagonal Tiling [PDF]

open access: yesParallel Processing Letters, 2014
Iterative stencil computations are important in scientific computing and more also in the embedded and mobile domain. Recent publications have shown that tiling schemes that ensure concurrent start provide efficient ways to execute these kernels. Diamond tiling and hybrid-hexagonal tiling are two tiling schemes that enable concurrent start.
Grosser, Tobias   +3 more
openaire   +4 more sources

Hexagonal Inflation Tilings and Planar Monotiles [PDF]

open access: yesSymmetry, 2012
Aperiodic tilings with a small number of prototiles are of particular interest, both theoretically and for applications in crystallography. In this direction, many people have tried to construct aperiodic tilings that are built from a single prototile with nearest neighbour matching rules, which is then called a monotile. One strand of the search for a
Baake, Michael   +2 more
openaire   +4 more sources

Comparative Study of the Shiite symbolic patterns in Sheikh Safi al-Din Ardabil manument and Yazd mosque [PDF]

open access: yesنگره, 2017
Yazd Mosque is one of the Iran's Azeri style that used motifs in stucco and tiling in it, is proper to interpretation. The manument of Sheikh Safi al-Din Ardabil that built in 753 AD and during the reign of the Safavid, several units were added Contains ...
Mehdi Kazempour, Mehdi Mohammadzadeh
doaj   +1 more source

Intratumoral Heterogeneity and Immune Response Indicators to Predict Overall Survival in a Retrospective Study of HER2-Borderline (IHC 2+) Breast Cancer Patients

open access: yesFrontiers in Oncology, 2021
Breast cancer (BC) categorized as human epidermal growth factor receptor 2 (HER2) borderline [2+ by immunohistochemistry (IHC 2+)] presents challenges for the testing, frequently obscured by intratumoral heterogeneity (ITH). This leads to difficulties in
Gedmante Radziuviene   +13 more
doaj   +1 more source

A decagonal quasicrystal with rhombic and hexagonal tiles decorated with icosahedral structural units

open access: yesIUCrJ, 2020
The structure of a decagonal quasicrystal in the Zn58Mg40Y2 (at.%) alloy was studied using electron diffraction and atomic resolution Z-contrast imaging techniques. This stable Frank–Kasper Zn–Mg–Y decagonal quasicrystal has an atomic structure which can
W. Z. Wang   +4 more
doaj   +1 more source

Enumeration of octagonal tilings [PDF]

open access: yes, 2015
Random tilings are interesting as idealizations of atomistic models of quasicrystals and for their connection to problems in combinatorics and algorithms.
Hutchinson, Maxwell, Widom, Michael
core   +1 more source

Modeling and Analysis of hHoneycomb—A Polyhex Inspired Reconfigurable Tiling Robot

open access: yesEnergies, 2019
hHoneycomb, a self-reconfigurable cleaning robot, is designed based on tiling theory, to overcome the significant challenges experienced by the fixed morphology cleaning robot.
Rizuwana Parween   +6 more
doaj   +1 more source

Independent Prognostic Value of Intratumoral Heterogeneity and Immune Response Features by Automated Digital Immunohistochemistry Analysis in Early Hormone Receptor-Positive Breast Carcinoma

open access: yesFrontiers in Oncology, 2020
Immunohistochemistry (IHC) for ER, PR, HER2, and Ki67 is used to predict outcome and therapy response in breast cancer patients. The current IHC assessment, visual or digital, is based mostly on global biomarker expression levels in the tissue sample. In
Dovile Zilenaite   +14 more
doaj   +1 more source

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