Results 51 to 60 of about 128,027 (302)

Triple Roman domination subdivision number in graphs [PDF]

open access: yesComputer Science Journal of Moldova, 2022
For a graph $G=(V, E)$, a triple Roman domination function is a function $f: V(G)\longrightarrow\{0, 1, 2, 3, 4\}$ having the property that for any vertex $v\in V(G)$, if $f(v)
Jafar Amjadi, Hakimeh Sadeghi
doaj  

Scalable Thermal Engineering via Femtosecond Laser‐Direct‐Written Phononic Nanostructures

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates that femtosecond laser‐induced periodic surface structures (fs‐LIPSS) can function as phononic metasurfaces, reducing thermal conductivity below the plain thin‐film limit. Phonon Monte Carlo analysis reveals that the periodic structures restrict phonon mean free paths.
Hiroki Hamma   +4 more
wiley   +1 more source

Weak Signed Roman Domination in Digraphs

open access: yesTamkang Journal of Mathematics, 2021
Let $D$ be a finite and simple digraph with vertex set $V(D)$. A weak signed Roman dominating function (WSRDF) on a digraph $D$ is a function $f:V(D)\rightarrow\{-1,1,2\}$ satisfying the condition that $\sum_{x\in N^-[v]}f(x)\ge 1$ for each $v\in V(D)$, where $N^-[v]$ consists of $v$ and allvertices of $D$ from which arcs go into $v$.
openaire   +8 more sources

Some Properties of Double Roman Domination [PDF]

open access: yesDiscrete Dynamics in Nature and Society, 2020
A double Roman dominating function on a graph G is a function f:VG⟶0,1,2,3 satisfying the conditions that every vertex u for which fu=0 is adjacent to at least one vertex v for which fv=3 or two vertices v1 and v2 for which fv1=fv2=2 and every vertex u for which fu=1 is adjacent to at least one vertex v for which fv≥2.
Hong Yang, Xiaoqing Zhou
openaire   +3 more sources

Iovem Imperium, or Sacred Aspects of Roman “Globalization” [PDF]

open access: yes, 2014
The article deals with the question of the “globalization” project of the Roman civilization. Author asserts that the Romans had a specific “globalization” project.
Halapsis, Alex V.
core  

Relativism and universalism in interrogation fairness: a comparative analysis between Europe and China [PDF]

open access: yes, 2012
This paper addresses Chinese interrogation rules from historical and comparative perspectives by relating them to the very different development of interrogation procedure in Europe.
Vander Beken, Tom, Wu, Wei
core   +2 more sources

Porous Coatings by Vapor Sublimation and Deposition for Molecular Channeling and Filtration in an Interstitial Fluid Microfiltration Device

open access: yesAdvanced Healthcare Materials, EarlyView.
A vapor‐based porous coating applied within nitinol tubes demonstrated complete suppression of cellular and tissue ingrowth, overcoming a major limitation of implantable interstitial fluid collection devices. Molecular channeling and diffusion are analyzed with probe molecules, showing reliable transport in vitro and in vivo. The coating also achieved >
Yu‐Ming Chang   +8 more
wiley   +1 more source

On the Roman Bondage Number of Graphs on surfaces [PDF]

open access: yes, 2014
A Roman dominating function on a graph $G$ is a labeling $f : V(G) \rightarrow \{0, 1, 2\}$ such that every vertex with label $0$ has a neighbor with label $2$. The Roman domination number, $\gamma_R(G)$, of $G$ is the minimum of $\Sigma_{v\in V (G)} f(v)
Samodivkin, Vladimir
core  

Microbubble Shell Stiffness Engineering Enhances Ultrasound Imaging, Drug Delivery, and Sonoporation

open access: yesAdvanced Materials, EarlyView.
 Shell‐engineered poly(alkyl cyanoacrylate) microbubbles with tunable stiffness improve ultrasound imaging and therapy. Adjusting the length of the alkyl chain and the glass transition temperature maintains a narrow microbubble size distribution while enhancing drug loading, sonoporation and the acoustic response.
Roman A. Barmin   +30 more
wiley   +1 more source

The politics of historical economics: Wilhelm Roscher on democracy, socialism and Caesarism [PDF]

open access: yes, 2016
Wilhelm Friedrich Georg Roscher (1817-94) is generally remembered as a significant nineteenth-century German political economist and a contributor to the “German Historical School of Economics.” His work is usually placed in the context of a larger ...
McDaniel, Iain
core   +1 more source

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