Results 101 to 110 of about 723,682 (282)
Advanced Functional Materials, EarlyView.Polymorph engineering in ErMnO3 enables low‐voltage, forming‐free threshold switching with tunable negative differential resistance. Conducting orthorhombic regions embedded in an insulating hexagonal matrix provide controlled Joule‐heating‐enhanced Poole–Frenkel transport. The hexagonal phase prevents excessive heating and breakdown.
Rong Wu +8 more
wiley +1 more source
NETWORK QUALITY RATING IN PROJECT MANAGEMENT
Современные 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
Graph operations on Cayley graphs of semigroups
International Journal of Applied Mathematical Research, 2013 Lots of large graphs can be constructed from existing smaller graphs by using graph operations, such as the graph products. Many properties of such large graphs are closely related to those of the corresponding smaller ones.In this paper we consider some operations of Cayley graphs on semigroups.
Amir Assari, Narges Hosseinzadeh
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Advanced Functional Materials, EarlyView.Micro‐injection laser‐assisted bioprinting enables ultrafast and precise patterning of small endothelial cell spheroids by injecting a highly concentrated single‐cell suspension into GelMA/ColMA hydrogels. In co‐culture with fibroblasts, controlled pre‐vasculogenic network formation is obtained at microscale resolution.
Charles Handschin +9 more
wiley +1 more source
Helmholtz operators on infinite graphs
HeliyonThe 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
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Advanced Functional Materials, EarlyView.ABSTRACT Breathable membranes that reject chemical warfare agents (CWAs) are required for next‐generation protective apparel. A dual‐function graphene oxide (GO)‐polyamine architecture is introduced that addresses the long‐standing tradeoff between vapor transmission and CWA selectivity.
Hyungjun Kim +6 more
wiley +1 more source
Graph operations and upper bounds on graph homomorphism counts [PDF]
Journal 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
In Situ 3D Bioprinting: Impact of Cross‐Linking on the Adhesive Properties of Hydrogels
Advanced Functional Materials, EarlyView.In situ 3D bioprinting enables the direct deposition of cell‐laden, adhesive biomaterials for on‐site tissue regeneration. This review provides a comprehensive overview of how cross‐linking influences the bioadhesive properties of hydrogels used in 3D bioprinting, highlighting cross‐linking triggers, bioadhesion mechanisms, polymer interpenetration ...
Odile Romero Fernandez +4 more
wiley +1 more source
Beyond the Edge: Charge‐Transfer Excitons in Organic Donor‐Acceptor Cocrystals
Advanced Functional Materials, EarlyView.Complex excitonic landscapes in acene–perfluoroacene cocrystals are unveiled by polarization‐resolved optical spectroscopy and many‐body theory. This systematic study of a prototypical model system for weakly interacting donor–acceptor compounds challenges common views of charge‐transfer excitons, providing a refined conceptual framework for ...
Sebastian Anhäuser +6 more
wiley +1 more source
On Spectral Graph Determination
MathematicsThe 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