Results 51 to 60 of about 929 (179)

Predictive Modeling and Equation Formulation for 3D‐Printed Reinforced Concrete Beams

Advances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.
This study focuses on developing predictive models and design equations for 3D‐printed reinforced concrete beams, utilizing machine learning to enhance the accuracy of structural analysis. The research aimed to create a novel equation for predicting bending moments, considering factors like tensile strength, compressive strength, and reinforcement ...
Paschal Chimeremeze Chiadighikaobi, Mohammad Hematibahar, Amirali Milani, Makhmud Kharun, Qais Abdulrahman Ali Qais, Mohammad Rezwan Habib   +5 more
wiley   +1 more source

Strongly Coupled Exciton–Hyperbolic‐Phonon‐Polariton Hybridized States in hBN‐Encapsulated Biased Bilayer Graphene

Advanced Optical Materials, Volume 13, Issue 35, December 12, 2025.
Excitons in biased bilayer graphene are electrically tunable excitations in the mid‐infrared (MIR) spectrum, where optical transitions are typically scarce. In this work, it is demonstrated that when the bilayer is encapsulated in hexagonal‐boron‐nitride (hBN)—a material supporting optical phonons and hyperbolic‐phonon‐polaritons (HPhPs) in the MIR—the
Tomer Eini, N. M. R. Peres, Yarden Mazor, Itai Epstein   +3 more
wiley   +1 more source

THE HYPERBOLOID OF REVOLUTION OF ONE NAPPE A RULED SURFACE GENERATING CONICS

Journal of Industrial Design and Engineering Graphics, 2013
The paper intends to underline the property of the hyperboloid of revolution of one nappe to generate on its surface, when it is cut by a plane, the three known conics (ellipse, hyperbola and parabola).Cutting this surface by a plane, we find the ...
Gabriel Oprea, Ana Maria Mihaela Rugescu
doaj   +4 more sources

REGRESIÓN Y CORRELACIÓN DE SUPERFICIES ÓPTICAS DE REVOLUCIÓN EN FORMA CANÓNICA CONOCIDOS LOS RADIOS DE CURVATURA REGRESSÃO E CORRELAÇÃO DE SUPERFÍCIES ÓPTICAS DE REVOLUÇÃO EM FORMA CANÔNICA CONHECIDOS OS RÁDIOS DE CURVATURA REGRESSION AND CORRELATION OF OPTICAL SURFACES OF REVOLUTION IN CANONICAL FORM KNOWN THE RADII OF CURVATURE

Revista EIA, 2009
Se presentan tres modelos matemáticos para la regresión y correlación de una nube de N puntos en R3 con coordenadas cartesianas xj, yj como abscisas, con su respectiva ordenada ri como radio de curvatura de la sección axial o sagital, pero que no ...
Juan Camilo Valencia, Álvaro Hernán Bedoya   +1 more
doaj  

Ultraspinning limits and rotating hyperboloid membranes

Nuclear Physics B, 2016
We apply the hyperboloid membrane limit to the general Kerr-AdS metrics and their recently studied super-entropic cousins and obtain a new class of rotating black holes, for which the rotational parameters in multiple directions attain their maximal ...
Robie A. Hennigar, David Kubizňák, Robert B. Mann, Nathan Musoke   +3 more
doaj   +1 more source

Structural Detailing of Material Extrusion Additively Manufactured 2D Metamaterials With Rigid Inclusions

Proceedings in Applied Mathematics and Mechanics, Volume 25, Issue 4, December 2025.
ABSTRACT Metamaterials are artificially designed structures that exhibit tailored mechanical properties. These properties result primarily from their underlying small‐scale architecture and can therefore be improved by adapting this structure. In this work, the mechanical behaviour of the two‐dimensional projection of the underlying structure is ...
Antonia Dönitz, Franka Kurpjuhn, Igor Berinskii, Vladimir Popov, Wolfgang H. Müller, Christina Völlmecke   +5 more
wiley   +1 more source

HYPERBOLIC SUSPENDED GREENHOUSES

Journal of Industrial Design and Engineering Graphics, 2022
Agriculture is one of the most important economical branches that supports and develops our society. With the increased surface allocated for the urban areas, in order to create more space for agriculture purposes, one idea is to look up. Therefore, the
Oana NECULAI, Irina IGNATESCU-MANEA, Ana – Maria TOMA, Liliana BODESCU   +3 more
doaj  

Continuous wavelet transform on the hyperboloid

Applied and Computational Harmonic Analysis, 2007
The main advantages of the known continuous wavelet transforms (CWT) over the classical Fourier transform are its local and multiresolution nature, which provide the properties of a mathematical microscope. However, data analysis has undergone deep changes recently and the field faces new exciting challenges. A given feature shared by these problems is
Bogdanova, I., Vandergheynst, P., Gazeau, J.-P.   +2 more
openaire   +3 more sources

Multialloy Au‐Co‐Pd Nanopillars‐in‐Oxide Hybrid Metamaterials with Tunable Optical and Magnetic Properties

Small Science, Volume 5, Issue 12, December 2025.
Self‐assembled vertically aligned nanocomposite (VAN) BTO: (Au‐Co‐Pd) and BTO: (Au‐Pd) VAN thin films are grown using a simplified oxide‐metal strips deposition method in pulsed laser deposition. The hybrid VAN films exhibit tunable localized plasmonic surface resonance and hyperbolic dispersion characteristics in the visible to near‐infrared ...
Vasundhara Acharya, Juanjuan Lu, Jiawei Song, Ping Lu, Alessandro R. Mazza, Jianan Shen, Zihao He, Juncheng Liu, Hongyi Dou, Yizhi Zhang, Zhongxia Shang, Aiping Chen, Haiyan Wang, Di Zhang   +13 more
wiley   +1 more source

Harmonic analysis on hyperboloids

Journal of Functional Analysis, 1973
AbstractThe regular representation of O(n, N) acting on L2(O(n, N)O(n, N − 1)) is decomposed into a direct integral of irreducible representations. The homogeneous space O(n, N)O(n, N − 1) is realized as the Hyperboloid H = {(x, t) ϵ Rn + N : ¦ t ¦2 − ¦ x ¦2 = 1}.
openaire   +1 more source