Results 81 to 90 of about 35,950 (265)

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

open access: yesAdvanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner   +9 more
wiley   +1 more source

Geometric Circular Graphs

open access: yesMapana - Journal of Sciences, 2006
In this paper we study a class of graphs,which resemble a Circle in a plane in terms of diameter and radius.We introduce the term "Geometric Circular Graphs" for those graphs whose diameter is equal to twice the radius of the graph.Here we have studied some properties of geometric circular graphs.Also we have found some bounds in terms of the ...
openaire   +3 more sources

A Geometric Property of the Laplacian matrix of a Connected Nonsingular Mixed Graph

open access: yesJournal of Chemistry, 2020
In this paper, we give a geometric interpretation of the Laplacian matrix of a connected nonsingular mixed graph which generalizes the results of M. Fiedler (M. Fiedler, Geometry of the Laplacian, Linear Algebra Appl., 2005, 403: 409–413).
Zheng-Da Zhou, Shi-Cai Gong
doaj   +1 more source

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

open access: yesAdvanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone   +11 more
wiley   +1 more source

Bidimensionality of Geometric Intersection Graphs [PDF]

open access: yes, 2014
Let B be a finite collection of geometric (not necessarily convex) bodies in the plane. Clearly, this class of geometric objects naturally generalizes the class of disks, lines, ellipsoids, and even convex polygons. We consider geometric intersection graphs GB where each body of the collection B is represented by a vertex, and two vertices of GB are ...
Grigoriev, Alexander   +2 more
openaire   +5 more sources

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

open access: yesAdvanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner   +4 more
wiley   +1 more source

Vision-Based Situational Graphs Exploiting Fiducial Markers for the Integration of Semantic Entities

open access: yesRobotics
Situational Graphs (S-Graphs) merge geometric models of the environment generated by Simultaneous Localization and Mapping (SLAM) approaches with 3D scene graphs into a multi-layered jointly optimizable factor graph.
Ali Tourani   +5 more
doaj   +1 more source

Stochastic Geometry: Boolean model and random geometric graphs

open access: yesESAIM: Proceedings and Surveys, 2015
This paper collects the four contributions which were presented during the session devoted to Stochastic Geometry at the journées MAS 2014.
Calka Pierre   +4 more
doaj   +1 more source

From Practice to New Concepts: Geometric Properties of Groups

open access: yesPhilosophia Scientiæ, 2012
The paper aims to show how mathematical practice, in particular with visual representations, can lead to new mathematical results. The argument is based on a case study from a relatively recent and promising mathematical subject—geometric group theory ...
Irina Starikova
doaj   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

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