Results 31 to 40 of about 20,338 (301)

Extreme-value statistics from Lagrangian convex hull analysis for homogeneous turbulent Boussinesq convection and MHD convection

open access: yesNew Journal of Physics, 2017
We investigate the utility of the convex hull of many Lagrangian tracers to analyze transport properties of turbulent flows with different anisotropy. In direct numerical simulations of statistically homogeneous and stationary Navier–Stokes turbulence ...
J Pratt   +4 more
doaj   +1 more source

Assessment of Postural Sway Area in Single-Leg Balance: A Comparative Analysis of Center-of-Pressure Area Metrics with the Convex Hull approach [PDF]

open access: yes운동과학
PURPOSE Quantifying postural control using Center-of-Pressure (COP) data obtained from a force plate is commonly used in balance assessments, yet the sensitivity of various sway area metrics remains unclear.
Seung-Hee Nam, Kyung-Min Kim
doaj   +1 more source

Convex approximations for complete integer recourse models [PDF]

open access: yes, 2002
We consider convex approximations of the expected value function of a two-stage integer recourse problem. The convex approximations are obtained by perturbing the distribution of the random right-hand side vector.
Vlerk, Maarten H. van der   +2 more
core   +1 more source

Effect of Performance of Soil Cultivator with Different Surface Textures of Shovel Wing

open access: yesAgriculture, 2021
Cultivating the soil is a necessary measure to ensure the growth of potatoes, and it has a significant impact on potato yield. In this study, a soil cultivator with a textured shovel wing was designed to address the problem that soil cultivators have ...
Ming Wang   +4 more
doaj   +1 more source

Relative Convex Hull Determination from Convex Hulls in the Plane [PDF]

open access: yes, 2015
A new algorithm for the determination of the relative convex hull in the plane of a simple polygon A with respect to another simple polygon B which contains A, is proposed. The relative convex hull is also known as geodesic convex hull, and the problem of its determination in the plane is equivalent to find the shortest curve among all Jordan curves ...
Petra Wiederhold, Hugo Reyes
openaire   +2 more sources

The Randomized Integer Convex Hull [PDF]

open access: yesDiscrete & Computational Geometry, 2004
Let \({\mathbb Z}^d\) denote the \(d\)-dimensional integer lattice. Let \(K\subset {\mathbb R}^d\) be a convex body, i.e. a convex compact set with nonempty interior. The integer convex hull \(I(K)\) of \(K\) is the convex hull of all lattice points in \(K\), i.e. \(I(K) = conv(K\cap {\mathbb Z}^d)\).
Imre Bárány, Jirí Matousek 0001
openaire   +2 more sources

Sumsets and the Convex Hull

open access: yes, 2010
6 ...
Matolcsi, Mate, Ruzsa, Imre Z.
openaire   +2 more sources

The convex hull of transposition matrices [PDF]

open access: yes, 1974
The convex hull of the n by n transposition matrices is characterized as the set of symmetric doubly stochastic matrices with trace n - 2. A similar characterization (with trace > n - 2) is given for the convex hull of the union of transposition ...
Joel, Lambert S.
core   +1 more source

Robust transmission expansion planning using pair-based convex hull uncertainty sets under high penetration of renewable energy generation

open access: yesEnergy Reports, 2022
Robust optimization is a practical and effective mathematical framework for coping with uncertainty in the transmission expansion planning (TEP) process, while computing the full convex hull is an outstanding data-driven means of searching for robust ...
Xin Yin   +3 more
doaj   +1 more source

Nearest Neighbor Convex Hull Tensor Classification for Gear Intelligent Fault Diagnosis Based on Multi-Sensor Signals

open access: yesIEEE Access, 2019
For the feature tensor of multi-sensor signals classification problem in gear intelligent fault diagnosis, a new tensor classifier named nearest neighbor convex hull tensor classification (NNCHTC) is proposed in this paper.
Zhengyang Cheng, Rongji Wang
doaj   +1 more source

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