Results 21 to 30 of about 10,323 (260)

Quasi-Realistic Performance Analysis of Modern Atkinson Cycle

open access: yesInternational Journal of Automotive Science and Technology, 2022
In this study, a quasi-realistic thermodynamic analysis was performed to investigate the effects of design and operating parameters on the performance of a single-cylinder modern Atkinson cycle engine. Fortran was used for all calculations.
A. Onur Özdemir   +3 more
doaj   +1 more source

Design of straight bevel gear for pitting resistance [PDF]

open access: yesFME Transactions, 2018
Based on the Tredgold geometric approximation, a transparent contact stress capacity model for straight bevel gears is presented. A bevel load factor is defined which provides a kinetic link between the physical bevel gear and virtual spur gear.
Osakue Edward E., Lucky Anetor
doaj  

Locally conformally Kähler structures on four-dimensional solvable Lie algebras

open access: yesComplex Manifolds, 2019
We classify and investigate locally conformally Kähler structures on four-dimensional solvable Lie algebras up to linear equivalence. As an application we can produce many examples in higher dimension, here including lcK structures on Oeljeklaus-Toma ...
Angella Daniele, Origlia Marcos
doaj   +1 more source

Cellular pavings of fibers of convolution morphisms [PDF]

open access: yesÉpijournal de Géométrie Algébrique
This article proves, in the case of split groups over arbitrary fields, that all fibers of convolution morphisms attached to parahoric affine flag varieties are paved by products of affine lines and affine lines minus a point.
Thomas J. Haines
doaj   +1 more source

Geometric and physical interpretation of the action principle

open access: yesScientific Reports, 2023
We give a geometric interpretation for the principle of stationary action in classical Lagrangian particle mechanics. In a nutshell, the difference of the action along a path and its variation effectively “counts” the possible evolutions that “go through”
Gabriele Carcassi, Christine A. Aidala
doaj   +1 more source

Global configurations of singularities for quadratic differential systems with exactly three finite singularities of total multiplicity four

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
In this article we obtain the geometric classification of singularities, finite and infinite, for the two subclasses of quadratic differential systems with total finite multiplicity $m_f=4$ possessing exactly three finite singularities, namely: systems ...
Joan Artés   +3 more
doaj   +1 more source

Constructing geometrically equivalent hyperbolic orbifolds [PDF]

open access: yesAlgebraic & Geometric Topology, 2017
In this paper, we construct families of nonisometric hyperbolic orbifolds that contain the same isometry classes of nonflat totally geodesic subspaces. The main tool is a variant of the well-known Sunada method for constructing length-isospectral Riemannian manifolds that handles totally geodesic submanifolds of multiple codimensions simultaneously.
McReynolds, David   +2 more
openaire   +3 more sources

Global configurations of singularities for quadratic differential systems with exactly two finite singularities of total multiplicity four

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2014
In this article we obtain the geometric classification of singularities, finite and infinite, for the three subclasses of quadratic differential systems with $m_f=4$ possessing exactly two finite singularities, namely: (i) systems with two double complex
Joan Artés   +4 more
doaj   +1 more source

Kinematic Geometry of a Timelike Line Trajectory in Hyperbolic Locomotions

open access: yesAxioms, 2023
This study utilizes the axodes invariants to derive novel hyperbolic proofs of the Euler–Savary and Disteli formulae. The inflection circle, which is widely recognized, is situated on the hyperbolic dual unit sphere, in accordance with the principles of ...
Areej A. Almoneef, Rashad A. Abdel-Baky
doaj   +1 more source

A randomized phase I study comparing the pharmacokinetics of a bevacizumab (HD204) biosimilar to European Union- and United States of America-sourced bevacizumab.

open access: yesPLoS ONE, 2021
PurposeThis first-in-human study was designed to evaluate the pharmacokinetic (PK) equivalence between HD204 and the European Union (EU)-sourced bevacizumab, between HD204 and the United States of America (US)-sourced bevacizumab, and between EU-sourced ...
Martin Demarchi   +15 more
doaj   +1 more source

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