Results 121 to 130 of about 71,329 (324)

Regular star polygons

open access: yesOsječki matematički list, 2017
Pravilni zvjezdasti mnogokut je geometrijska figura koja se najčešće susreće u umjetnosti i arhitekturi, ali ima i svoju primjenu pri rješavanju određenih optimizacijskih problema. Takva figura nastaje uzastopnim spajanjem točaka (najčešće nesusjednih) koje su pravilno raspoređene na kružnici pri čemu se postupak spajanja ponavlja sve dok se ne vratimo
Corn, Anja, Primorac Gajčić, Ljiljana
openaire   +2 more sources

Regular Steiner polygons

open access: yesApplied Mathematics Letters, 1998
Let a convex polygon \(P\) be approximated by a regular polygon \(R_n\) with \(n\) sides such that the area of their symmetric difference, i.e. the region that belongs to exactly one of them, is as small as possible. The author further assumes \(R_n\) to have the same perimeter as \(P\).
openaire   +1 more source

Computer Vision Pipeline for Image Analysis for Freeze‐Fracture Electron Microscopy: Rosette Cellulose Synthase Complexes Case

open access: yesAdvanced Intelligent Discovery, EarlyView.
This paper presents a computer vision (deep learning) pipeline integrating YOLOv8 and YOLOv9 for automated detection, segmentation, and analysis of rosette cellulose synthase complexes in freeze‐fracture electron microscopy images. The study explores curated dataset expansion for model improvement and highlights pipeline accuracy, speed ...
Siri Mudunuri   +6 more
wiley   +1 more source

A scattering model of 1D quantum wire regular polygons [PDF]

open access: green, 2015
Cristian Estarellas, Llorenç Serra
openalex   +1 more source

Interpretability and Representability of Commutative Algebra, Algebraic Topology, and Topological Spectral Theory for Real‐World Data

open access: yesAdvanced Intelligent Discovery, EarlyView.
This article investigates how persistent homology, persistent Laplacians, and persistent commutative algebra reveal complementary geometric, topological, and algebraic invariants or signatures of real‐world data. By analyzing shapes, synthetic complexes, fullerenes, and biomolecules, the article shows how these mathematical frameworks enhance ...
Yiming Ren, Guo‐Wei Wei
wiley   +1 more source

Regular Polygon Surfaces

open access: yes, 2018
A $\textit{regular polygon surface}$ $M$ is a surface graph $( , )$ together with a continuous map $ $ from $ $ into Euclidean 3-space which maps faces to regular Euclidean polygons. When $ $ is homeomorphic to the sphere and the degree of every face of $ $ is five, we prove that $M$ can be realized as the boundary of a union of dodecahedra ...
openaire   +2 more sources

Clinically Informed Intelligent Classification of Ovarian Cancer Cells by Label‐Free Holographic Imaging Flow Cytometry

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Quantitative phase maps of single cells recorded in flow cytometry modality feed a hierarchical architecture of machine learning models for the label‐free identification of subtypes of ovarian cancer. The employment of a priori clinical information improves the classification performance, thus emulating the clinical application of liquid biopsy during ...
Daniele Pirone   +11 more
wiley   +1 more source

Insect‐Inspired Resilient Machines

open access: yesAdvanced Intelligent Systems, EarlyView.
This study presents a decentralized resilient control for legged robots, enabling self‐organized locomotion and rapid adaptation to extreme leg loss within seconds. It encodes the self‐embodied resilience strategies observed in stick insects and relies on neural dynamics with synaptic plasticity, minimal sensory feedback, and dynamic robot–environment ...
Thirawat Chuthong   +3 more
wiley   +1 more source

Buckling stability analysis of AFGM heavy columns with nonprismatic solid regular polygon cross-section and constant volume

open access: yesScience and Engineering of Composite Materials
This work presents a comprehensive analysis of buckling stability of axially functionally graded material (AFGM) heavy columns with nonprismatic solid regular polygon cross-section (RPCS) and constant volume.
Lee Byoung Koo   +3 more
doaj   +1 more source

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