Results 101 to 110 of about 542,162 (354)

Semiclassical quantization and spectral limits of h-pseudodifferential and Berezin-Toeplitz operators

open access: yes, 2013
We introduce a minimalistic notion of semiclassical quantization and use it to prove that the convex hull of the semiclassical spectrum of a quantum system given by a collection of commuting operators converges to the convex hull of the spectrum of the ...
Ngoc, San Vũ   +2 more
core   +2 more sources

Interactive Prompt‐Guided Robotic Grasping for Arbitrary Objects Based on Promptable Segment Anything Model and Force‐Closure Analysis

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
A laser pointer‐guided robotic grasping method for arbitrary objects based on promptable segment anything model and force‐closure analysis is presented. Grasp generation methods based on force‐closure analysis can calculate the optimal grasps for objects through their appearances. However, the limited visual perception ability makes robots difficult to
Yan Liu   +5 more
wiley   +1 more source

Deephullnet: a deep learning approach for solving the convex hull and concave hull problems with transformer

open access: yesInternational Journal of Digital Earth
Convex and concave hulls originating from computational geometry are widely applied in practice. For instance, to determine the boundaries of a geographical area within a group of cities, convex hulls can represent the approximate boundaries of the areas.
Haojian Liang   +8 more
doaj   +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  

Ellipses surrounding convex bodies

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2022
If, for a double normal xx* of a convex body K, an ellipse E ∋ x, x* is included in K, we say that E is surrounded by the boundary of K. If, instead, in the plane of E, K is included in the convex hull of E, then we say that E is surrounding K.
Zamfirescu Tudor
doaj   +1 more source

SuperResNET: Model‐Free Single‐Molecule Network Analysis Software Achieves Molecular Resolution of Nup96

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
SuperResNET is a powerful integrated software that reconstructs network architecture and molecular distribution of subcellular structures from single molecule localization microscopy datasets. SuperResNET segments the nuclear pore complex and corners, extracts size, shape, and network features of all segmented nuclear pores and uses modularity analysis
Yahongyang Lydia Li   +6 more
wiley   +1 more source

Image-Based Dynamic Quantification of Aboveground Structure of Sugar Beet in Field

open access: yesRemote Sensing, 2020
Sugar beet is one of the main crops for sugar production in the world. With the increasing demand for sugar, more desirable sugar beet genotypes need to be cultivated through plant breeding programs.
Shunfu Xiao   +7 more
doaj   +1 more source

On the Krein-Milman-Ky Fan theorem for convex compact metrizable sets

open access: yes, 2016
The Krein-Milman theorem (1940) states that every convex compact subset of a Hausdorfflocally convex topological space, is the closed convex hull of its extreme points.
Bachir, Mohammed
core   +1 more source

Generalized compactness in linear spaces and its applications

open access: yes, 2011
The class of subsets of locally convex spaces called $\mu$-compact sets is considered. This class contains all compact sets as well as several noncompact sets widely used in applications.
A. D. Ioffe   +24 more
core   +1 more source

When the sand blossoms: Phylogeny, trait evolution, and geography of speciation in Linanthus

open access: yesAmerican Journal of Botany, Volume 112, Issue 3, March 2025.
Abstract Premise Understanding how plants successfully diversified in novel environments is a central question in evolutionary biology. Linanthus occurs in arid areas of western North America and exhibits extensive floral trait variation, multiple color polymorphisms, differences in blooming time, and variation in life history strategies.
Ioana G. Anghel   +3 more
wiley   +1 more source

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