Results 31 to 40 of about 4,821 (295)

Chamber graphs of minimal parabolic sporadic geometries

open access: yes, 2020
We explore the minimal characteristic two parabolic geometries for the finite sporadic simple groups, as introduced by Ronan and Stroth. The chamber graphs of the geometries are studied, with the aid of Magma, focusing on their disc structure and ...
Rowley, Peter; id_orcid   +1 more
core   +1 more source

Protective and Blast Resistive Design of Posttensioned Box Girders Using Computational Geometry

open access: yesAdvances in Civil Engineering, 2018
The optimal tendon profile and its associated duct geometry for posttensioned box girders are investigated. A computational algorithm has been developed to determine an ideal shape for the tendon and duct. The algorithm is based on a diagonal cross point
Majid Aleyaasin
doaj   +1 more source

Effect of Reflector Geometry in the Annual Received Radiation of Low Concentration Photovoltaic Systems

open access: yesEnergies, 2018
Solar concentrator photovoltaic collectors are able to deliver energy at higher temperatures for the same irradiances, since they are related to smaller areas for which heat losses occur.
João Paulo N. Torres   +6 more
doaj   +1 more source

Asymptotic Formulas for the Reflection/Transmission of Long Water Waves Propagating in a Tapered and Slender Harbor

open access: yesJournal of Applied Mathematics, 2015
We obtain asymptotic formulas for the reflection/transmission coefficients of linear long water waves, propagating in a harbor composed of a tapered and slender region connected to uniform inlet and outlet regions.
Eric-Gustavo Bautista   +2 more
doaj   +1 more source

Tractor calculi for parabolic geometries [PDF]

open access: yesTransactions of the American Mathematical Society, 2001
Parabolic geometries may be considered as curved analogues of the homogeneous spaces G / P
Cap, Andreas, Gover, A R
openaire   +1 more source

Geometry and Ergodic Theory of Parabolic Meromorphic Functions [PDF]

open access: yesJournal of Nonlinear Mathematical Physics, 2022
AbstractLetfbe a parabolic transcendental meromorphic function with positive and finite order$$\rho$$ρand its derivative satisfies some growth conditions. In this paper, we show the existence of conformal measures and use this basic tool to illustrate both geometrical and dynamical features of the radial Julia set.
openaire   +2 more sources

Point-line collinearity graphs of two sporadic minimal parabolic geometries [PDF]

open access: yes, 2010
The disc structure of the point-line collinearity graph for the rank two minimal parabolic geometries of the Thompson and Harada-Norton simple groups are investigated. Additionally details of the sub-orbits of these two groups in their conjugation action
Taylor, Paul   +4 more
core   +1 more source

Essential Parabolic Structures and Their Infinitesimal Automorphisms

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2011
Using the theory of Weyl structures, we give a natural generalization of the notion of essential conformal structures and conformal Killing fields to arbitrary parabolic geometries.
Jesse Alt
doaj   +1 more source

Remarks on symmetries of parabolic geometries [PDF]

open access: yes, 2006
summary:We consider symmetries on filtered manifolds and we study the $|1|$-graded parabolic geometries in more details. We discuss the existence of symmetries on the homogeneous models and we conclude some simple observations on the general curved ...
Zalabová, Lenka
core  

Characterization of Aluminized Layers on Inconel‐738 Alloy: Microstructure, Modeling of Aluminizing Kinetics, and Thermal Behavior

open access: yesAdvanced Engineering Materials, EarlyView.
This study explored how effective nickel aluminide coatings are obtained in providing oxidation resistance applied to the Inconel 738 alloy, modeling with diffusion models. In the present study, kinetics and thermal behavior of the Inconel 738 alloy were studied by the low‐temperature thermoreactive aluminizing process, which was carried out at 625°C ...
Gozde Celebi Efe   +4 more
wiley   +1 more source

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