Results 1 to 10 of about 1,661,077 (118)

Gestational Weight Gain Growth Charts Adapted to Japanese Pregnancies Using a Bayesian Approach in a Longitudinal Study: The Japan Environment and Children’s Study

open access: yesJournal of Epidemiology, 2023
Background: Tracking gestational weight gain (GWG) during pregnancy makes it possible to optimize pregnancy outcomes, and GWG growth curves are well suitable for this purpose. The GWG guidelines for Japanese were revised in 2021.
Naho Morisaki   +13 more
doaj   +1 more source

Surfaces of congruent sections of pendulum type on cylinders with generatrix superellipses

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2022
In 1972, I.I. Kotov proposed to separate the surfaces of congruent sections into a separate class and to include the surfaces of plane-and-parallel translation, surfaces of revolution, carved surfaces of Monge, cyclic surfaces with a generatrix circle of
Lana A. Alborova, Stanislav V. Strashnov
doaj   +1 more source

Energy Storage System Modelling For Hybrid Electric Vehicle [PDF]

open access: yesE3S Web of Conferences
The equivalent circuit model (ECM)-based traditional state-of-charge (SoC) estimate approaches combine all state variables into a single enhanced state vector.
Mohammed G.   +4 more
doaj   +1 more source

Das Hören sehen lassen . Anregungen zu Kulturtheorie und Geschichte musiktheoretischer Graphiken [PDF]

open access: yesZeitschrift der Gesellschaft für Musiktheorie, 2019
Graphische Darstellungen spielen in der Musiktheorie eine große und bisher kaum angemessen gewürdigte Rolle. Abbildungstraditionen und ihr historischer Wandel, Zeichen- und Drucktechnologie, aber auch wirtschaftliche Aspekte spielen hier mit hinein ...
Burkhard Meischein
doaj   +1 more source

Polypolar coordination and symmetries [PDF]

open access: yesКомпьютерные исследования и моделирование, 2010
The polypolar system of coordinates is formed by a family of a parametrized on a radius isofocal of kf-lemniscates. As well as the classical polar system of coordinates, it characterizes a point of a plane by a polypolar radius and polypolar angle . For
Tatyana Anatol'evna Rakcheeva
doaj   +1 more source

Curvature Entropy for Curved Profile Generation

open access: yesEntropy, 2012
In a curved surface design, the overall shape features that emerge from combinations of shape elements are important. However, controlling the features of the overall shape in curved profiles is difficult using conventional microscopic shape information ...
Koichiro Sato   +3 more
doaj   +1 more source

Weierstrass points on modular curves X0(N) fixed by the Atkin–Lehner involutions [PDF]

open access: yesArab Journal of Mathematical Sciences, 2023
Purpose – The authors have determined whether the points fixed by all the full and the partial Atkin–Lehner involutions WQ on X0(N) for N ≤ 50 are Weierstrass points or not.
Mustafa Bojakli, Hasan Sankari
doaj   +1 more source

CONSIDERATIONS REGARDING THE STRUCTURAL AND KINEMATIC ANALYSIS OF A CONICOGRAPH MECHANISM

open access: yesJournal of Industrial Design and Engineering Graphics, 2022
A conicographic mechanism of I. I. Artobolevski is studied structurally and kinematically (positions). The mechanism is R-RPP-RPR-PRP type. The positions of the mechanism are calculated by the closed-loop method.
Mirela GHERCIU   +3 more
doaj  

Oscillatory hyper-Hilbert transform on Wiener amalgam spaces

open access: yesOpen Mathematics, 2021
We study the boundedness of the oscillatory integral Tα,βf(x,y)=∫Q2f(x−γ1(t),y−γ2(s))e−2πit−β1s−β2t−α1−1s−α2−1dtds{T}_{\alpha ,\beta }f\left(x,y)=\mathop{\int }\limits_{{Q}^{2}}f\left(x-{\gamma }_{1}\left(t),y-{\gamma }_{2}\left(s)){e}^{-2\pi i{t ...
Sun Wei, Xie Ru-Long, Xu Liang-Yu
doaj   +1 more source

Geometrie coniugate

open access: yesDisegnare con, 2012
Lo studio degli ingranaggi si basa sulle geometrie coniugate in cui due curve o due superfici si mantengono costantemente in contatto pur se in movimento reciproco.
Leonardo Paris
doaj   +1 more source

Home - About - Disclaimer - Privacy