Results 41 to 50 of about 1,605,869 (375)

Planar and Quasi-Planar Simultaneous Geometric Embedding [PDF]

open access: yesThe Computer Journal, 2014
A simultaneous geometric embedding SGE of two planar graphs G 1 and G 2 with the same vertex set is a pair of straight-line planar drawings Γ1 of G 1 and Γ2 of G 2 such that each vertex is drawn at the same point in Γ1 and Γ2. Many papers have been devoted to the study of which pairs of graphs admit a SGE, and both positive and negative results have ...
DI GIACOMO, Emilio   +4 more
openaire   +2 more sources

Total Semirelib Graph [PDF]

open access: yes, 2013
In this paper, the concept of Total semirelib graph of a planar graph is introduced. Authors present a characterization of those graphs whose total semirelib graphs are planar, outer planar, Eulerian, hamiltonian with crossing number ...
Goudar, Venkanagouda, Prasad, Manjunath
core   +2 more sources

Strip Planarity Testing for Embedded Planar Graphs [PDF]

open access: yesAlgorithmica, 2016
In this paper we introduce and study the strip planarity testing problem, which takes as an input a planar graph $G(V,E)$ and a function $ :V \rightarrow \{1,2,\dots,k\}$ and asks whether a planar drawing of $G$ exists such that each edge is monotone in the $y$-direction and, for any $u,v\in V$ with $ (u)
Patrizio Angelini   +3 more
openaire   +4 more sources

An Ultra-Wide Band Radome for High-Performance and Dual-Polarized Radar and Communication Systems

open access: yesIEEE Access, 2020
This paper presents a new design technique to develop a multi-layer radome for ultra-wide-band, dual-polarized radar and communication systems. In the proposed technique, a multi-layer radome is designed using a combination of A-sandwich structures ...
Zeeshan Qamar   +2 more
doaj   +1 more source

High efficiency planar-type perovskite solar cells with negligible hysteresis using EDTA-complexed SnO2

open access: yesNature Communications, 2018
Even though the mesoporous-type perovskite solar cell (PSC) is known for high efficiency, its planar-type counterpart exhibits lower efficiency and hysteretic response.
Dong Yang   +9 more
semanticscholar   +1 more source

Porous Polypropylene Membrane Based pH Sensing for Skin Monitoring

open access: yesIEEE Access, 2022
An iridium oxide-based electrical pH sensor that is suitable to be embedded in an electronic bandage for skin monitoring has been developed. The electrical pH sensor does not entail high-temperature fabrication processes thus is suitable to be built on ...
Khengdauliu Chawang   +4 more
doaj   +1 more source

Improved Distributed Algorithms for Exact Shortest Paths

open access: yes, 2018
Computing shortest paths is one of the central problems in the theory of distributed computing. For the last few years, substantial progress has been made on the approximate single source shortest paths problem, culminating in an algorithm of Becker et ...
A   +3 more
core   +1 more source

Planar lattices and planar graphs

open access: yesJournal of Combinatorial Theory, Series B, 1976
AbstractIt is shown that a finite lattice is planar if and only if the (undirected) graph obtained from its (Hasse) diagram by adding an edge between its least and greatest elements is a planar graph.
openaire   +3 more sources

Nitrogen-Doped Nickel Graphene Core Shell Synthesis: Structural, Morphological, and Chemical Composition for Planar Hybrid Solar Cells Application

open access: yesPhotonics, 2022
In this study, nitrogen-doped nickel graphene core cells (N-NiGR) are synthesized using the thermal chemical vapor deposition method. The structural, morphological, and chemical composition properties of N-NiGR are investigated using X-ray diffractometry
Seung Beom Kang   +5 more
doaj   +1 more source

Compact Drawings of 1-Planar Graphs with Right-Angle Crossings and Few Bends

open access: yes, 2018
We study the following classes of beyond-planar graphs: 1-planar, IC-planar, and NIC-planar graphs. These are the graphs that admit a 1-planar, IC-planar, and NIC-planar drawing, respectively.
C Bachmaier   +13 more
core   +1 more source

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