Results 1 to 10 of about 1,521,016 (268)

MOTION OF CURVES USING QUASI FRAME [PDF]

open access: yesAssiut University Journal of Multidisciplinary Scientific Research, 2018
In this paper, evolution of space curves using quasi frame are considered. We derive a pair of coupled partialdifferential equations that governing the time evolution for the quasi curvatures of the evolving curve.
doaj   +2 more sources

Data Quality Analyzer—Towards Optimal Radio-Frequency Frame Pair Selection for Ultrasound Elastography [PDF]

open access: yesBioengineering
Quasi-static ultrasound elastography (USE) is a promising imaging technique for detecting malignancies by assessing tissue stiffness, but its accuracy heavily depends on the quality of radio-frequency (RF) frame pairs used for displacement estimation.
Matthew Caius   +3 more
doaj   +2 more sources

On Some Quasi-Curves in Galilean Three-Space

open access: yesAxioms, 2023
In this paper, the quasi-frame and quasi-formulas are introduced in Galilean three-space. In addition, the quasi-Bertrand and the quasi-Mannheim curves are studied.
Ayman Elsharkawy   +4 more
doaj   +1 more source

Geometry of Solutions of the Quasi-Vortex Filament Equation in Euclidean 3-Space E3

open access: yesMathematics, 2022
This work aims at investigating the geometry of surfaces corresponding to the geometry of solutions of the vortex filament equation in Euclidean 3-space E3 using the quasi-frame.
Ebrahem Hamouda   +4 more
doaj   +1 more source

Quasi-Focal Curves of Spacelike Adjoint Curves in 3D Minkowski Space

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2022
Associated curves bring meaningful geometric expression to the physics and mathematics fields in the characterization of curves and surfaces created by those curves, their behavior, and the study of particle motion in space-time. In this work, we examine
Talat Körpınar, Ahmet Sazak
doaj   +1 more source

Sugeno Integral for Hermite–Hadamard Inequality and Quasi-Arithmetic Means

open access: yesAnnales Mathematicae Silesianae, 2023
In this paper, we present the Sugeno integral of Hermite–Hadamard inequality for the case of quasi-arithmetically convex (q-ac) functions which acts as a generator for all quasi-arithmetic means in the frame work of Sugeno integral.
Nadhomi Timothy
doaj   +1 more source

Quasi Random Resampling Designs for Multiple Frame Surveys

open access: yesStatistica, 2019
In this paper, we present two new algorithms that use the shuffled Sobol sequence to generate the bootstrap resampling designs in multiple frame surveys.
Cherif Ahmat Tidiane Aidara
doaj   +1 more source

Experimental Study of the Seismic Performance of a Prefabricated Frame Rocking Wall Structure

open access: yesBuildings, 2022
This paper proposes a prefabricated frame rocking wall (PFRW) structure system in which beams, columns, and rocking walls are all prefabricated components.
Fuwen Zhang   +5 more
doaj   +1 more source

Adaptation of the de Hoffmann–Teller frame for quasi-perpendicular collisionless shocks [PDF]

open access: yesAnnales Geophysicae, 2015
The concept of the de Hoffmann–Teller frame is revisited for a high Mach-number quasi-perpendicular collisionless shock wave. Particle-in-cell simulation shows that the local magnetic field oscillations in the shock layer introduce a residual motional
H. Comişel   +5 more
doaj   +1 more source

Dynamic wake meandering model calibration using nacelle-mounted lidar systems [PDF]

open access: yesWind Energy Science, 2020
Light detection and ranging (lidar) systems have gained a great importance in today's wake characteristic measurements. The aim of this measurement campaign is to track the wake meandering and in a further step to validate the wind speed deficit in the ...
I. Reinwardt   +4 more
doaj   +1 more source

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