Results 1 to 10 of about 535 (181)
Some Properties of Ruled Surfaces under Homothety in E3 [PDF]
Mathematical and Computational Applications, 2002 It is clearly that, If f : E3→E3 is a homothety and \(\varphi\) is a surface in three dimensional Euclidean space E3, \(f(\varphi) = \overline{\varphi}\) is also a surface in E3. In this paper, the surface \(\varphi\) has been taken a ruled surface, specially. It was shown that image surface \(f(\varphi) = \overline{\varphi}\) has been a ruled surface,
Emin Kasap, Salim Yüce, Nuri KuruoĞlu
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Children’s first handwriting productions show a rhythmic structure [PDF]
Scientific Reports, 2017 Although much research has been concerned with the development of kinematic aspects of handwriting, little is known about the development along with age of two principles that govern its rhythmic organization: Homothety and Isochrony.
Elena Pagliarini +7 more
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Interferometric apodization by homothety – II. Experimental validation
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT This work presents the results of experimental laboratory tests on the apodization of circular and rectangular apertures using the Interferometric Apodization by Homothety (IAH) technique. The IAH approach involves splitting the amplitude of the instrumental PSF into two equal parts.
Zouhair Benkhaldoun, Jamal Chafi
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Generalized rule of homothety of ideal memristors and their siblings
2015 European Conference on Circuit Theory and Design (ECCTD), 2015 The pinched hysteresis loop area increasing with the square of the frequency of driving harmonic signal on the assumption of constant charge delivered within the half-period belongs to the less known fingerprints of ideal memristor. The paper proves that this fingerprint holds not only for the harmonic excitation: the v-i characteristic of a memristor ...
Tetzlaff, Ronald +2 more
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Lumen areas and homothety factor influence airway resistance in COPD
Respiratory Physiology and Neurobiology, 2010 The remodelling process of COPD may affect both airway calibre and the homothety factor, which is a constant parameter describing the reduction of airway lumen (h(d): diameter of child/parent bronchus) that might be critical because its reduction would induce a frank increase in airway resistance.
Marie-Pierre Revel +2 more
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A Tablet App for Handwriting Skill Screening at the Preliteracy Stage: Instrument Validation Study [PDF]
JMIR Serious Games, 2020 BackgroundDifficulties in handwriting, such as dysgraphia, impact several aspects of a child’s everyday life. Current methodologies for the detection of such difficulties in children have the following three main weaknesses: (1) they are prone to ...
Dui, Linda Greta +6 more
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Interferometric apodization by homothety – I. Optimization of the device parameters [PDF]
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT This study is focused on the very high dynamic imaging field, specifically the direct observation of exoplanetary systems. The coronagraph is an essential technique for suppressing the star’s light, making it possible to detect an exoplanet with a very weak luminosity compared to its host star. Apodization improves the rejection
J Chafi +6 more
openaire +3 more sources
Homothety curvature homogeneity and homothety homogeneity [PDF]
Annals of Global Analysis and Geometry, 2015 This article supersedes arXiv:1309 ...
Eduardo García-Río, P Gilkey
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Homotheties of a Class of Spherically Symmetric Space-Time Admitting G3 as Maximal Isometry Group [PDF]
Advances in Mathematical Physics, 2018 The homotheties of spherically symmetric space-time admitting G4, G6, and G10 as maximal isometry groups are already known, whereas, for the space-time admitting G3 as isometry groups, the solution in the form of differential constraints on metric ...
Daud Ahmad, Kashif Habib
doaj +2 more sources
A gametheoretic approach for non-uniform pole shifting and pole homothety
Automatica, 2013 International audienceThis paper investigates the problems of non-uniform pole shifting or pole homothety in multivariable linear systems by using a gametheoretic approach and more specifically a particular Nash strategy with an open-loop information ...
Marc Jungers +2 more
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