Results 1 to 10 of about 1,686,396 (177)

Ellipsoid Fitting Using Variable Sample Consensus and Two-Ellipsoid-Bounding-Counting for Locating Lingwu Long Jujubes in a Natural Environment

open access: yesIEEE Access, 2019
Locating Lingwu Long Jujubes is a key step for the automatic picking of the jujubes which can lower labour costs. In this paper, a method for detecting Lingwu Long Jujubes in a natural environment with a three-dimensional (3D) point cloud is proposed ...
Min Han, Jiangming Kan, Yutan Wang
doaj   +2 more sources

Improved Assessment of Globularity of Protein Structures and the Ellipsoid Profile of the Biological Assemblies from the PDB [PDF]

open access: yesBiomolecules, 2023
In this paper, we present an update to the ellipsoid profile algorithm (EP), a simple technique for the measurement of the globularity of protein structures without the calculation of molecular surfaces.
Mateusz Banach
doaj   +2 more sources

A novel methodology for localizing pallidal deep brain stimulation leads [PDF]

open access: yesFrontiers in Neuroanatomy
IntroductionPositioning of deep brain stimulation (DBS) leads is paramount for optimizing therapeutic efficacy in Parkinson’s disease (PD) and dystonia. Quantitative determination of lead position remains essential; however, current atlas-based targeting
Benjamin Pobiel   +15 more
doaj   +2 more sources

Linear and weakly nonlinear stability analyses of Darcy Bénard convection with feedback control [PDF]

open access: yesScientific Reports
In this paper, the effect of feedback control on the criterion for the onset of Darcy–Bénard convection  $$\left( \textrm{DBC}\right)$$  in a horizontal Boussinesq Newtonian fluid is studied theoretically. The bounding isothermal lower and upper surfaces
P. G. Siddheshwar   +2 more
doaj   +2 more sources

Recursive blind equalization with an optimal bounding ellipsoid algorithm

open access: yesEuropean Signal Processing Conference, 2014
Publication in the conference proceedings of EUSIPCO, Lisbon, Portugal ...
M. Pouliquen, M. Frikel, M. Denoual
semanticscholar   +4 more sources

Reachable Set Estimation and Controller Design for Linear Time-Delayed Control System with Disturbances

open access: yesMathematics
This paper investigates reachable set estimation and state-feedback controller design for linear time-delay control systems with bounded disturbances. By constructing an appropriate Lyapunov–Krasovskii functional, we obtain a delay-dependent condition ...
Yongchun Jiang   +2 more
doaj   +2 more sources

Dual Set-Membership State Estimation for Power Distribution Networks Under Event-Triggered Mechanism

open access: yesFrontiers in Energy Research, 2022
This article is concerned with the set-membership state estimation problem for power distribution networks (PDNs) over a resource-constrained communication network under the influence of unknown but bounded (UBB) noises.
Xingzhen Bai   +5 more
doaj   +1 more source

Set-Membership Filtering for Nonlinear Dynamic Systems With Quadratic Inequality Constraints

open access: yesIEEE Access, 2020
The present study investigates the problem of set-membership filtering for nonlinear dynamic systems with general nonconvex inhomogeneous quadratic inequality constraints.
Xiaowei Li   +6 more
doaj   +1 more source

Assessment of Globularity of Protein Structures via Minimum Volume Ellipsoids and Voxel-Based Atom Representation

open access: yesCrystals, 2021
A computer algorithm for assessment of globularity of protein structures is presented. By enclosing the input protein in a minimum volume ellipsoid (MVEE) and calculating a profile measuring how voxelized space within this shape (cubes on a uniform grid)
Mateusz Banach
doaj   +1 more source

Invariant-set design of robust switched trackers for bidirectional power converters in hybrid microgrids

open access: yesAin Shams Engineering Journal, 2023
The small-signal stability of a hybrid (DC/AC) microgrid is highly affected by the direction and amount of power flow through the interlinking converter (IC).
Hilmy Awad   +3 more
doaj   +1 more source

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