Results 111 to 120 of about 74,849 (301)
CONSTRUCTING A POLYTOPE TO APPROXIMATE A CONVEX BODY
, 1995 International audienceWe develop an algorithm to construct a convex polytope P with n vertices, contained in an arbitrary convex body K in R(d), so that the ratio of the volumes \K\P\/\K\ is dominated by c . d/n(2/(d-1))
Meyer, Mathieu, Reisner, S, Gordon, Y
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Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks
Advanced Science, EarlyView.Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Xiang Huang, Feng Li, Rongkun Zheng
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Covering polygonal annuli by strips [PDF]
, 2007 In 2000 Bezdek asked which plane convex bodies have the property that whenever an annulus, consisting of the body less a sufficiently small scaled copy of itself, is covered by strips, the sum of the widths of the strips must still be at least the ...
Laura Wisewell +3 more
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Bilateral SERS‐Microneedle Patch for Co‐Diagnosis of Diabetes Mellitus and Tuberculosis Comorbidity
Advanced Science, EarlyView.Our study introduced a U@mP@Au‐mediated bilateral SERS‐microneedle patch for analyzing glucose levels from ISF and sensitively detecting TB biomarkers from sputum, respectively. This integrated dual‐analyte detecting platform can be used for co‐diagnosis of diabetes mellitus (DM) and tuberculosis (TB) comorbidity, which was demonstrated in ex vivo ...
Xueqin Huang +12 more
wiley +1 more source
Axial symmetry in convex bodies
Pacific Journal of MathematicsFor a two-dimensional convex body, the Kovner-Besicovitch measure of symmetry is defined as the volume ratio of the largest centrally symmetric body contained inside the body to the original body. A classical result states that the Kovner-Besicovitch measure is at least $2/3$ for every convex body and equals $2/3$ for triangles.
Ritesh Goenka +3 more
openaire +2 more sources
Convex body domination for a class of multi-scale operators
, 2023 The technique of sparse domination, i.e., dominating operators with sums of averages taken over sparsely distributed cubes, has seen rapid development recently within the realms of harmonic analysis.
Laukkarinen, Aapo
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Hair Follicle Seedling Cryomicroneedles from Hierarchical Microfluidic Organoid on a Chip
Advanced Science, EarlyView.In this paper, a hierarchical microfluidic chip is developed to produce uniform hair follicle organoids (HFOs) in cryomicroneedles. Cryopreservation agents encapsulate HFOs, preserving viability and hair growth potential. The cryomicroneedles enable simple intradermal transplantation with good skin penetration.
Xinyue Cao +3 more
wiley +1 more source
КЛАССИФИКАЦИЯ ВЫПУКЛЫХ МНОГОГРАННИКОВ
Проблемы анализа, 2004 The paper is continuation of the author's series of paper devoted to the solution of Hadviger's problem of covering convex polyhedrons with body images at homothety.
ПУОЛОКАЙНЕН Т.М.
doaj
Computing affine convex body semigroups
, 2013 Implementation of algorithms to compute the generating set of affine convex body semigroupsMathematica package ("http://reference.wolfram.com/workbench/index.jsp?topic=/com.wolfram.eclipse.help/html/tasks/applications/packages.html"
García García, Juan Ignacio +3 more
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Advanced Science, EarlyView.The phase transition of supercritical CO2 induces the foaming of dense MXene film without compromise inherent structure of MXene nanosheet. The foamed porous MXene film manifests remarkable EMI shielding and infrared thermal camouflage performances. Moreover, the foaming strategy is broadly adaptable and can be extended to other two‐dimensional films ...
Hui Zhao +7 more
wiley +1 more source