Results 21 to 30 of about 1,669,571 (296)

Investigation of the evolution of arc: Azadegan magmatic rocks, north of Shahrekord, Sanandaj-Sirjan zone [PDF]

open access: yesپترولوژی, 2021
The magmatic complex of Azadegan, composed of basalt, andesitic basalt, andesite, gabbro and diorite, located 45 km northwest of Shahrekord and in the middle part of the Sanandaj-Sirjan zone..
Maryam Ahankoub   +2 more
doaj   +1 more source

A Systematic Search for High Surface Brightness Giant Arcs in a Sloan Digital Sky Survey Cluster Sample [PDF]

open access: yes, 2007
We present the results of a search for gravitationally-lensed giant arcs conducted on a sample of 825 SDSS galaxy clusters. Both a visual inspection of the images and an automated search were performed and no arcs were found.
Bartelmann M.   +12 more
core   +3 more sources

Planar arcs [PDF]

open access: yesJournal of Combinatorial Theory, Series A, 2018
The error in the differentiation argument has been ...
Simeon Ball, Michel Lavrauw
openaire   +5 more sources

A Quantitative Analysis of Sectoral Interrelationship in the Framework of the Structural Path Analysis [PDF]

open access: yesفصلنامه پژوهش‌های اقتصادی ایران, 2004
In this paper we analyze quantitatively the interrelationship between three major sectors of  the Iranian economy, viz. agriculture, industry and services.
Ali Asghar Banouei   +4 more
doaj  

Optimizing the Process of Arc-Spraying To Improve Wear Resistance of Crank Shaft [PDF]

open access: yesEngineering and Technology Journal, 2011
This research studies the factors effecting on coating produced by electrical arcspraying. The studied variables are applied voltage, wire feed rate and spraying distance.In this investigation used wires made from martinsitic stainless steel to coat the ...
Asmaa Ali Hussein, Abdullah F. Hauier
doaj   +1 more source

Fast Arc-Annotated Subsequence Matching in Linear Space [PDF]

open access: yes, 2010
An arc-annotated string is a string of characters, called bases, augmented with a set of pairs, called arcs, each connecting two bases. Given arc-annotated strings $P$ and $Q$ the arc-preserving subsequence problem is to determine if $P$ can be obtained ...
D. Harel   +10 more
core   +3 more sources

Arc‐Disjoint Cycles and Feedback Arc Sets [PDF]

open access: yesJournal of Graph Theory, 2013
AbstractIsaak posed the following problem. Suppose T is a tournament having a minimum feedback arc set, which induces an acyclic digraph with a hamiltonian path. Is it true that the maximum number of arc‐disjoint cycles in T equals the cardinality of minimum feedback arc set of T? We prove that the answer to the problem is in the negative.
openaire   +2 more sources

Feature extraction of arc high impedance grounding fault of low‐voltage distribution lines based on Bayesian network optimisation algorithm

open access: yesIET Cyber-Physical Systems, 2023
In order to accurately extract the fault features of arc high impedance grounding of low‐voltage distribution lines and judge the fault feature types of arc high impedance grounding of low‐voltage distribution lines, a fault feature extraction method for
Jing Sun
doaj   +1 more source

Arcs in the plane

open access: yesTopology and its Applications, 2011
14 ...
Hart, Joan E., Kunen, Kenneth
openaire   +2 more sources

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