Results 91 to 100 of about 67,461 (315)

Helmholtz operators on infinite graphs

open access: yesHeliyon
The Helmholtz equation in its simplest form is Δu(a)=-k2u(a). In this note, we study a generalized discrete version of this equation on an infinite graph, by using potential-theoretic methods.
Varadha Raj Manivannan   +1 more
openaire   +3 more sources

Gourd‐Inspired Design of Unit Cell with Multiple Gradients for Physiological‐Range Pressure Sensing

open access: yesAdvanced Functional Materials, EarlyView.
Gourd‐shaped micro‐dome arrays with coordinated modulus, conductivity, and geometric gradients co‐optimize sensitivity and linearity in piezoresistive tactile sensors. Under pressure, a solid upper dome embeds into a porous lower dome, triggering rapid contact‐area growth and series‐to‐parallel conduction, enabling unsaturated, intensity‐resolved ...
Jiayi Xu   +6 more
wiley   +1 more source

NETWORK QUALITY RATING IN PROJECT MANAGEMENT

open access: yesСовременные информационные технологии и IT-образование, 2019
The article regards network project which can be represented by directed acyclic graph with restrictions ensuing from project definition. The problem of planning in project management is the comparative analysis of networks of the single project.
Vladimir G. Abramov   +2 more
doaj   +1 more source

LOCAL IRREGULARITY POINT COLORING ON THE RESULT OF SUBDIVISION OPERATION OF HELM GRAPHS

open access: diamond, 2023
Ilmiatun Nuroeni   +4 more
openalex   +2 more sources

Graph operations and upper bounds on graph homomorphism counts [PDF]

open access: yesJournal of Graph Theory, 2017
AbstractWe construct a family of countexamples to a conjecture of Galvin [5], which stated that for any n‐vertex, d‐regular graph G and any graph H (possibly with loops), urn:x-wiley:03649024:media:jgt22148:jgt22148-math-0001where is the number of homomorphisms from G to H. By exploiting properties of the graph tensor product and graph exponentiation,
openaire   +2 more sources

Overcoming Debye Length Limitations in Electrolyte‐Gated Transistor Biosensors Using Nanoscale‐Grooved Oxide Semiconductors Fabricated by Thermal Nanoimprint Lithography

open access: yesAdvanced Functional Materials, EarlyView.
Nanoscale‐grooved indium gallium oxide (IGO) semiconductors, patterned via thermal nanoimprint lithography (NIL) using CD/DVD templates, are integrated into electrolyte‐gated transistor biosensors to overcome Debye length limitations. Precisely engineered concave–convex nanostructures modulate local electrostatic potentials, extend the effective Debye ...
Jong Yu Song   +5 more
wiley   +1 more source

Programmable In‐Situ Interactions Between Resins and Photopolymerized Structures for Seamlessly Integrated Optical Manufacturing of Microlenses

open access: yesAdvanced Functional Materials, EarlyView.
This study presents a dynamic interaction between liquid resins and photopolymerized structures enabled by an in situ light‐writing setup. By controlling a three‐phase interface through localized photopolymerization, which provides physical confinement for the remaining uncured resin regions, the approach establishes a programmable pathway that ...
Kibeom Kim   +3 more
wiley   +1 more source

On Spectral Graph Determination

open access: yesMathematics
The study of spectral graph determination is a fascinating area of research in spectral graph theory and algebraic combinatorics. This field focuses on examining the spectral characterization of various classes of graphs, developing methods to construct ...
Igal Sason   +3 more
doaj   +1 more source

Novel Functional Materials via 3D Printing by Vat Photopolymerization

open access: yesAdvanced Functional Materials, EarlyView.
This Perspective systematically analyzes strategies for incorporating functionalities into 3D‐printed materials via Vat Photopolymerization (VP). It explores the spectrum of achievable functionalities in recently reported novel materials—such as conductive, energy‐storing, biodegradable, stimuli‐responsive, self‐healing, shape‐memory, biomaterials, and
Sergey S. Nechausov   +3 more
wiley   +1 more source

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