Results 11 to 20 of about 1,658,857 (271)

Iterated arc graphs [PDF]

open access: yesCommentationes Mathematicae Universitatis Carolinae, 2018
The arc graph $ (G)$ of a digraph $G$ is the digraph with the set of arcs of $G$ as vertex-set, where the arcs of $ (G)$ join consecutive arcs of $G$. In 1981, Poljak and R dl characterised the chromatic number of $ (G)$ in terms of the chromatic number of $G$ when $G$ is symmetric (i.e., undirected).
Rorabaugh, Danny   +3 more
openaire   +2 more sources

ALICE—ARC integration [PDF]

open access: yesJournal of Physics: Conference Series, 2008
AliEn or Alice Environment is the Gridware developed and used within the ALICE collaboration for storing and processing data in a distributed manner. ARC (Advanced Resource Connector) is the Grid middleware deployed across the Nordic countries and gluing together the resources within the Nordic Data Grid Facility (NDGF).
Anderlik, Csaba   +4 more
openaire   +2 more sources

ARC [PDF]

open access: yesExtended Abstracts of the 2019 CHI Conference on Human Factors in Computing Systems, 2019
Asynchronous Remote Communities (ARC) methodology has been used to explore HCI topics in a range of contexts. This innovative methodology takes advantage of the technological tools and platforms that are often the subject of HCI research to extend existing methods of data collection, pushing methodology beyond historical modes and allowing better ...
Ashley Marie Walker   +8 more
openaire   +3 more sources

Research on Energy Conversion in the Arc-Extinguishing Process of a Long-Gap Gas Lightning-Protection Device

open access: yesEnergies, 2022
In this paper, a two-dimensional axisymmetric module of gas arc extinguishing was simulated using energy balance theories. We used simulation to study the energy distribution change during the gas arc-extinguishing process.
Qiwen He   +7 more
doaj   +1 more source

A Systematic Assessment of Stable Sr Isotopic Compositions of Vent Fluids in Arc/Back-Arc Hydrothermal Systems: Effects of Host Rock Type, Phase Separation, and Overlying Sediment

open access: yesFrontiers in Earth Science, 2020
Variations in the stable isotopic composition of seawater Sr (δ88Sr) is a new tool for estimating the rates of global carbonate sedimentation over geologic time, yet the isotope compositions of the major sources and sinks of Sr to the world oceans are ...
Toshihiro Yoshimura   +6 more
doaj   +1 more source

New Arcs in PG(3,8) by Singer Group

open access: yesAl-Mustansiriyah Journal of Science, 2022
In this paper, studied the types of (k, r)-arcs were constructed by action of groups on the three-dimensional projective space over the Galois field of order eight. Also, determined if they form complete arcs or not.
Najm Abdulzahra Al-seraji   +2 more
doaj   +1 more source

VERIFICATION OF THE DIFFUSION AND TRANSPORT SOLVERS WITHIN DIF3D FOR 3D HEXAGONAL GEOMETRIES [PDF]

open access: yesEPJ Web of Conferences, 2021
The DIF3D code (DIFfusion 3D) has been a workhorse of fast reactor analysis work at Argonne National Laboratory for over 40 years. DIF3D was primarily built in the late 1970s as a three-dimensional multigroup diffusion equation solver operating on semi ...
Nelson A. G., Smith M. A., Heidet F.
doaj   +1 more source

Testing of multidimensional tectonomagmatic discrimination diagrams on fresh and altered rocks

open access: yesGeologica Carpathica, 2016
We evaluated 55 multidimensional diagrams proposed during 2004-2013 for the tectonic discrimination of ultrabasic, basic, intermediate, and acid magmas.
Rivera-Gómez M. Abdelaly   +1 more
doaj   +1 more source

ARC Detection in DC ARC Furnaces [PDF]

open access: yes, 2014
A direct-current (DC) plasma arc furnace is a type of electric furnace used for metallurgical operations. The successful operation of DC furnaces depends to a large extent on gaining a fundamental understanding of the arc phenomenon itself, and ensuring its presence in the furnace at all times.
Quinn G Reynolds   +3 more
openaire   +1 more source

Influence of System Parameters on Fuse Protection Use in Regenerative DC Drives

open access: yesEnergies, 2009
Current limiting fuses are widely used to protect the thyristors in DC drive systems. One very important problem is the choice of the correct voltage rating for fuses protecting regenerative DC drives, where many types of fault may occur, which makes ...
Isa Salman Qamber   +2 more
doaj   +1 more source

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