Results 51 to 60 of about 372 (174)

ON APPLICATION OF PARABOLIC SHELLS OF REVOLUTION IN CIVIL ENGINEERING IN 2000-2017

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2017
Dome is often used by architects for cover of large spans. Only spherical, conical, elliptical, parabolic, and hyperbolic surfaces of revolution among tens of the well-known surfaces of revolution can be taken for middle surfaces of domes.
S N KRIVOSHAPKO
doaj   +1 more source

STUDENTS' APPROACHES ON WARPED SURFACE

open access: yesJournal of Industrial Design and Engineering Graphics, 2019
The geometric challenges in the architectural design of warped surface come mainly from the physical materialization. This paper presents structural forms based on warped surface and shows the types of structures made during the 20th and 21st century ...
Ana-Maria GRAUR   +2 more
doaj   +4 more sources

Darboux Frame of Pancake Curve in Euclidean 3-Space

open access: yesCumhuriyet Science Journal
In this paper, we focus on a rare curve, “The pancake curve” which was named by Robert Ferréol. We investigate the Darboux frame of the curve, and we calculate the curvatures: geodesic curvature, normal curvature, and geodesic torsion.
Emre Öztürk
doaj   +1 more source

The Mesosoma of Protanilla (Leptanillinae) and the Groundplan of the Formicidae (Hymenoptera)

open access: yesJournal of Morphology, Volume 286, Issue 7, July 2025.
Phenomic investigation of the mesosoma of Protanilla lini reveals groundplan features of the ants and raises new homology questions for future investigation, both within Formicidae and across Aculeata. Special highlights include refined definition of the pronotum, complex discoveries of the promesothoracic articulation, and a new perspective on and ...
Lazzat Aibekova   +6 more
wiley   +1 more source

THE RESULTS OF DIFFERENT METHODS OF CALCULATION OF A NON-SHALLOW HYPERBOLIC PARABOLOID

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2016
Two methods of analysis of a non-shallow hyperbolic paraboloid are presented in the pa- per. The first approximate method was fulfilled with the help of the analytical formulas but the second one was made due to SP 52-117-2008 "Reinforced Concrete ...
O O Aleshina
doaj  

On totally umbilical and minimal surfaces of the Lorentzian Heisenberg groups

open access: yesMathematische Nachrichten, Volume 298, Issue 6, Page 1922-1942, June 2025.
Abstract This paper has manifold purposes. We first introduce a description of the Gauss map for submanifolds (both spacelike and timelike) of a Lorentzian ambient space and relate the conformality of the Gauss map of a surface to total umbilicity and minimality.
Giovanni Calvaruso   +2 more
wiley   +1 more source

The process for designing and constructing the Komazawa Park Gymnasium and Central Plaza

open access: yesJapan Architectural Review
In his book Gaibu kūkan no kōsei (Exterior Space in Architecture), Yoshinobu Ashihara criticized modern architecture and urban planning and searched for ways to realize plazas suitable for humans.
Saikaku Toyokawa
doaj   +1 more source

Fernando Higueras and Félix Candela: back to the umbrella's geometry. Analysis and 3D reconstruction of Murcia airport, 1983

open access: yesEGA, 2018
The work presented below is part of the results of a research project at "Universidad Politécnica de Madrid". In this paper we analyze the project for Murcia airport, which was done by Fernando Higueras under the guidance of Félix Candela.
Federico Luis Del Blanco García   +1 more
doaj   +1 more source

Mutual Reciprocal Interconnection of Relations Describing Creep, Yield Stress and Stress Relaxation

open access: yesCommunications, 2010
The steady-state creep rate increases with testing temperature according to the Arrhenius law and its increase with applied stress is usually described by the power law.
Jan Kohout, Vojtech Hruby
doaj   +1 more source

The process for designing and constructing the Sunpu Kaikan

open access: yesJapan Architectural Review
This study aims to reveal the difficulty of realizing large hyperbolic paraboloid (HP) shell structures comprising reinforced concrete in earthquake‐prone Japan in the 1950s.
Saikaku Toyokawa
doaj   +1 more source

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