Results 21 to 30 of about 4,606,695 (285)

Study on potential of wood production of various Poplar species and clones in northern forest areas (Case study: Siahkal region in Guilan province) [PDF]

open access: yesتحقیقات جنگل و صنوبر ایران, 2011
First phase of research project for establishment and adaptation of different poplar species and clones in northern Iran was started on 1992 and lasts for 15 years.
Ebrahim Lashkarbolouki   +3 more
doaj   +1 more source

On Strong Diameter Padded Decompositions [PDF]

open access: yes, 2019
Given a weighted graph G=(V,E,w), a partition of V is Delta-bounded if the diameter of each cluster is bounded by Delta. A distribution over Delta-bounded partitions is a beta-padded decomposition if every ball of radius gamma Delta is contained in a ...
Filtser, Arnold
core   +1 more source

Solar Diameter(s) [PDF]

open access: yesSolar Physics, 1983
AbstractBecause of the renewed attention now paid to the solar diameter, its variations from equator to pole, or its secular or long-period changes, the question: what is a solar diameter? is not meaningless. Two kinds of definitions may be given: either astrophysical, each one relating to a specific physical parameter, or observational, relating to a ...
J. Rösch, R. Yerle
openaire   +1 more source

On the diameter of dot-critical graphs [PDF]

open access: yesOpuscula Mathematica, 2009
A graph G is \(k\)-dot-critical (totaly \(k\)-dot-critical) if \(G\) is dot-critical (totaly dot-critical) and the domination number is \(k\). In the paper [T. Burtona, D. P.
Doost Ali Mojdeh, Somayeh Mirzamani
doaj   +1 more source

Reference values of normal abdominal aortic areas in Chinese population measured by contrast-enhanced computed tomography

open access: yesFrontiers in Cardiovascular Medicine, 2022
ObjectiveTo generate reference values of the normal areas of the abdominal aorta at various levels among Chinese people and to explore the factors that may promote the expansion of the abdominal aorta.MethodsThe areas of normal abdominal aortas were ...
Xiang Wang   +10 more
doaj   +1 more source

Augmenting graphs to minimize the diameter [PDF]

open access: yes, 2013
We study the problem of augmenting a weighted graph by inserting edges of bounded total cost while minimizing the diameter of the augmented graph.
A.A. Schoone   +14 more
core   +1 more source

Minimum Zagreb Eccentricity Indices of Two-Mode Network with Applications in Boiling Point and Benzenoid Hydrocarbons

open access: yesMathematics, 2022
A two-mode network is a type of network in which nodes can be divided into two sets in such a way that links can be established between different types of nodes. The relationship between two separate sets of entities can be modeled as a bipartite network.
Ali Al Khabyah   +4 more
doaj   +1 more source

The diameter of weighted random graphs [PDF]

open access: yes, 2015
In this paper we study the impact of random exponential edge weights on the distances in a random graph and, in particular, on its diameter. Our main result consists of a precise asymptotic expression for the maximal weight of the shortest weight paths ...
Amini, Hamed, Lelarge, Marc
core   +3 more sources

New results for the degree/diameter problem [PDF]

open access: yes, 1994
The results of computer searches for large graphs with given (small) degree and diameter are presented. The new graphs are Cayley graphs of semidirect products of cyclic groups and related groups.
Dinneen, Michael J., Hafner, Paul R.
core   +1 more source

A Benchmarking Algorithm to Determine Minimum Aggregation Delay for Data Gathering Trees and an Analysis of the Diameter-Aggregation Delay Tradeoff

open access: yesAlgorithms, 2015
Aggregation delay is the minimum number of time slots required to aggregate data along the edges of a data gathering tree (DG tree) spanning all the nodes in a wireless sensor network (WSN).
Natarajan Meghanathan
doaj   +1 more source

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