Results 21 to 30 of about 1,153,922 (283)
Fiabilitate şi Durabilitate, 2019 It gives a small history of flat curves and their correlation with the evolution of the technique is emphasized. Mathematical details are given on the study of flat curves and their properties.
Iulian POPESCU
doaj
Minimum distance estimation of parametric Lorenz curves based on grouped data
, 2020 The Lorenz curve, introduced more than 100 years ago, remains as one of the main tools for analysis of inequality. International institutions such as the World Bank collect and publish grouped income data in the form of population and income shares for a
Hajargasht, Gholamreza +1 more
core +1 more source
A yield curvature model considering axial compression ratio
Advances in Bridge Engineering, 2023 This study proposed a yield curvature prediction model considering axial compression ratio with exponential function which is improved on the basis of the specification effective yield curvature prediction model.
Yanyan Zhu, Jian Zhong
doaj +1 more source
L-systems in Geometric Modeling [PDF]
Electronic Proceedings in Theoretical Computer Science, 2010 We show that parametric context-sensitive L-systems with affine geometry interpretation provide a succinct description of some of the most fundamental algorithms of geometric modeling of curves.
Przemyslaw Prusinkiewicz +2 more
doaj +1 more source
Radical parametrizations of algebraic curves by adjoint curves
Journal of Symbolic Computation, 2011 We present algorithms for parametrizing by radicals an irreducible curve, not necessarily plane, when the genus is less o equal to 4 and they are defined over an algebraically closed field of characteristic zero. In addition, we also present an algorithm for parametrizing by radicals any irreducible plane curve of degree $d$ having at least a point of ...
J. Rafael Sendra, David Sevilla
openaire +3 more sources
Catchments do not strictly follow Budyko curves over multiple decades, but deviations are minor and predictable [PDF]
Hydrology and Earth System SciencesQuantification of precipitation partitioning into evaporation and runoff is crucial for predicting future water availability. Within the widely used Budyko framework, which relates the long-term aridity index to the long-term evaporative index ...
M. Ibrahim +3 more
doaj +1 more source
Biharmonic Curves in a Strict Walker 3-Manifold
International Journal of Mathematics and Mathematical Sciences, 2022 In this paper, we study the geometry of biharmonic curves in a strict Walker 3-manifold and we obtain explicit parametric equations for biharmonic curves and time-like biharmonic curves, respectively.
Mamadou Gningue +2 more
doaj +1 more source
Journal of Numerical Analysis and Approximation TheoryIn this paper, we consider the global optimization problem of non-smooth functions over an \(n\)-dimensional box, satisfying the H\"{o}lder condition. We focus our study on the case when the H\"{o}lder constant is not a priori known.
Nor Sahnoune +2 more
doaj +1 more source
Sequential Document Visualization Based on Hierarchical Parametric Histogram Curves
Tsinghua Science and Technology, 2012 Recently, sequential document visualization has attracted much attention for its superior capability in depicting the sequential semantic progression in a single document.
Haidong Chen +4 more
doaj +1 more source
Parametric Hull Design with Rational Bézier Curves and Estimation of Performances
Journal of Marine Science and Engineering, 2021 In this paper, a tool able to support the sailing yacht designer during the early stage of the design process has been developed. Cubic Rational Bézier curves have been selected to describe the main curves defining the hull of a sailing yacht.
Tommaso Ingrassia +4 more
doaj +1 more source