Results 1 to 10 of about 10,405 (160)

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

Biomolecules, 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

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

Scientific 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, Vinit Vinod Revankar, M. S. Jagadeesh Kumar   +2 more
doaj   +2 more sources

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

Frontiers 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, Guhui Li, Mingyu Ding, Xingquan Ji, Jing Li, Xinlei Zheng   +5 more
doaj   +1 more source

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

IEEE 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, Xuedong Yuan, Fanqin Meng, Yiwei Liao, Haiqi Liu, Xuqi Zhang, Xiaojing Shen   +6 more
doaj   +1 more source

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

Crystals, 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

Ain 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, Ehab H.E. Bayoumi, Hisham M. Soliman, Amr M. Ibrahim   +3 more
doaj   +1 more source

A Tighter Set-Membership Filter for Some Nonlinear Dynamic Systems

IEEE Access, 2018
In this paper, we propose a tighter set-membership filter for some nonlinear dynamic systems by using an analytic method and a boundary sampling technique.
Zhiguo Wang, Xiaojing Shen, Yunmin Zhu, Jianxin Pan   +3 more
doaj   +1 more source

Ellipsoid Bounds for Convex Quadratic Integer Programming

SIAM Journal on Optimization, 2015
Summary: Solving convex quadratic integer minimization problems by a branch-and-bound algorithm requires tight lower bounds on the optimal objective value. To obtain such dual bounds, we follow the approach of \textit{C. Buchheim} et al. [Math. Program. 135, No.
Buchheim, Christoph, Huebner, Ruth, Schoebel, Anita   +2 more
openaire   +3 more sources

Load-Balancing for Parallel Delaunay Triangulations [PDF]

, 2019
Computing the Delaunay triangulation (DT) of a given point set in $\mathbb{R}^D$ is one of the fundamental operations in computational geometry. Recently, Funke and Sanders (2017) presented a divide-and-conquer DT algorithm that merges two partial ...
A Aggarwal, BW Kernighan, G Bergen van den, HD Simon, J Kohout, J Shewchuk, J Shewchuk, N Chrisochoides, N Chrisochoides, O Devillers, P Cignoni, P Sanders, P Sanders, S Lee, T Larsson, VH Batista, Y Akhremtsev   +16 more
core   +3 more sources

Optimal Prediction and Update for Box Set-Membership Filter

IEEE Access, 2019
This paper investigates a box set-membership filter for nonlinear dynamic systems and on-line usage. To the best of our knowledge, although ellipsoid set-membership filter has more freedom degree to optimize a bounding estimation, it is computationally ...
Fanqin Meng, Haiqi Liu, Xiaojing Shen, Junfeng Wang   +3 more
doaj   +1 more source