Zobrazeno 1 - 10
of 5 607
pro vyhledávání: '"N. JAFARI"'
Autor:
N. Jafari, Y. Dinpashoh
Publikováno v:
مجله آب و خاک, Vol 37, Iss 6, Pp 855-869 (2024)
IntroductionThe study of surface water quality control in water resources and environment management programs is very important. Surface water is one of the most important water sources that have crucial impact on agricultural, industrial, drinking a
Externí odkaz:
https://doaj.org/article/1f82e09706ec489090f45cd9e9bdd143
Let $\Gamma=(K_{n},H^-)$ be a signed complete graph whose negative edges induce a subgraph $H$. The index of $\Gamma$ is the largest eigenvalue of its adjacency matrix. In this paper we study the index of $\Gamma$ when $H$ is a unicyclic graph. We sh
Externí odkaz:
http://arxiv.org/abs/2102.03308
For a graph $G=(V,E)$, a double roman dominating function (DRDF) is a function $f : V \longrightarrow \{0, 1, 2,3\}$ having the property that if $f(v)=0$ for some vertex $v$, then $v$ has at least two neighbors assigned $2$ under $f$ or one neighbor
Externí odkaz:
http://arxiv.org/abs/1905.06724
Autor:
M. Alcusky, R. B. Thomas, N. Jafari, S. W. Keith, A. Kee, S. Del Canale, M. Lombardi, V. Maio
Publikováno v:
BMC Geriatrics, Vol 21, Iss 1, Pp 1-9 (2021)
Abstract Background A multimodal general practitioner-focused intervention in the Local Health Authority (LHA) of Parma, Italy, substantially reduced the prevalence of potentially inappropriate medication (PIM) use among older adults. Our objective w
Externí odkaz:
https://doaj.org/article/cf503cc99b5f495a9d59e30b4f8c41d9
Publikováno v:
Journal of Clinical Care & Skills. Spring2023, Vol. 4 Issue 2, p56-62. 7p.
Publikováno v:
AKCE International Journal of Graphs and Combinatorics, Vol 17, Iss 3, Pp 966-984 (2020)
In this work, we continue to survey what has been done on the Roman domination. More precisely, we will present in two sections several variations of Roman dominating functions as well as the signed version of some of these functions. It should be no
Externí odkaz:
https://doaj.org/article/f21b2b2d56394358aa8e5fab2a7d20f3
Autor:
N. Jafari Rad, A. Poureidi
Publikováno v:
Communications in Combinatorics and Optimization, Vol 4, Iss 2, Pp 201-208 (2019)
Let $G=(V,E)$ be a graph. A subset $S\subset V$ is a hop dominating set if every vertex outside $S$ is at distance two from a vertex of $S$. A hop dominating set $S$ which induces a connected subgraph is called a connected hop dominating set of $
Externí odkaz:
https://doaj.org/article/044ebf76298d47eab5549f60507234a4
Autor:
Rad, N. Jafari, Jafari, S. H.
For a vector space $V$ the \emph{intersection graph of subspaces} of $V$, denoted by $G(V)$, is the graph whose vertices are in a one-to-one correspondence with proper nontrivial subspaces of $V$ and two distinct vertices are adjacent if and only if
Externí odkaz:
http://arxiv.org/abs/1105.0803
Autor:
Wu, Yunjian, Rad, N. Jafari
A {\it 2-rainbow domination function} of a graph $G$ is a function $f$ that assigns to each vertex a set of colors chosen from the set $\{1,2\}$, such that for any $v\in V(G)$, $f(v)=\emptyset$ implies $\bigcup_{u\in N(v)}f(u)=\{1,2\}$. The {\it 2-ra
Externí odkaz:
http://arxiv.org/abs/1005.0988
Publikováno v:
Advanced Electromagnetics, Vol 8, Iss 1, Pp 99-105 (2019)
A novel augmented railgun using a permanent magnet is proposed in this paper. The effects of the permanent magnet on the magnetic field and distribution of current density have been investigated. High current densities in the railguns can lead to hig
Externí odkaz:
https://doaj.org/article/9e2e7f6951fa48449e93542e3df865c9