Výsledky vyhledávání - "Stephen J. Curran"

C_4-face-magic toroidal labelings on C_m × C_n

Autor: Stephen J. Curran, Richard M. Low, Stephen C. Locke

Publikováno v: The Art of Discrete and Applied Mathematics. 4:#P1.04

For a graph G = (V, E) naturally embedded in the torus, let ℱ(G) denote the set of faces of G. Then, G is called a Cn-face-magic toroidal graph if there exists a bijection f : V(G) → {1, 2, …, |V(G)|} such that for every F ∈ ℱ(G) with F ≅

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9a7ffb267a51a11fd4146db7c2363a00
https://doi.org/10.26493/2590-9770.1368.f37

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Serialized holography for brand protection and authentication

Autor: Dervil Cody, Suzanne Martin, Josune Portillo, Vincent Toal, Paul Duffy, Emilia Mihaylova, Daniel Connell, Stephen McDonnell, Monika Zawadzka, Stephen J. Curran, Dinesh Vather, Izabela Naydenova

Publikováno v: Articles

The problems presented by counterfeit products and documentation are discussed. Limitations of existing holograms for anti-counterfeit applications are described. We describe the advantages of full holographic serialization and the requirements in te

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4b51e8c32e9963e3dcab0d140e59f0a
https://pubmed.ncbi.nlm.nih.gov/30117909

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H i emission and absorption in nearby, gas-rich galaxies

Autor: James R. Allison, Baerbel Koribalski, Michael Pracy, Elaine M. Sadler, Stephen J. Curran, Sarah Reeves

Publikováno v: Monthly Notices of the Royal Astronomical Society. 450:926-942

We present the results of a targeted search for intervening HI absorption in six nearby, gas-rich galaxies using the Australia Telescope Compact Array (ATCA). The sightlines searched have impact parameters of 10-20 kpc. By targeting nearby galaxies w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::192857b2655515fcdc6248cbb0550d43
https://doi.org/10.1093/mnras/stv504

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A search for H i and OH absorption in z ≳ 3 CO emitters

Autor: Michael Pracy, R. Athreya, James R. Allison, Stephen J. Curran, Matthew Whiting, Elaine M. Sadler, C. Bignell, Francoise Combes

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2016, 457 (4), pp.3666-3677. ⟨10.1093/mnras/stw089⟩
Monthly Notices of the Royal Astronomical Society, 2016, 457 (4), pp.3666-3677. ⟨10.1093/mnras/stw089⟩

We present the results of a survey for HI 21-cm and OH 18-cm absorption in seven strong CO emitters at z > 3. Despite reaching limits comparable to those required to detect 21-cm absorption at lower redshifts, we do not detect either transition in an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f7f5a9be883a15eb21f541ed0c2a9d9
https://hal.archives-ouvertes.fr/hal-02318399

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A search for 21 cm H iabsorption in AT20G compact radio galaxies

Autor: Elizabeth K. Mahony, Matthew Whiting, James R. Allison, K. Gareb, Martin Zwaan, Elaine M. Sadler, Bjorn Emonts, Stephen J. Curran, Sarah Reeves, A. Tanna

Publikováno v: Monthly Notices of the Royal Astronomical Society. 423:2601-2616

We present results from a search for 21 cm associated HI absorption in a sample of 29 radio sources selected from the Australia Telescope 20 GHz survey. Observations were conducted using the Australia Telescope Compact Array Broadband Backend, with w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6185537b7bebbe09bc094193c8aaf7b8
https://doi.org/10.1111/j.1365-2966.2012.21062.x

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Double and single recycled pulsars: an evolutionary puzzle?

Autor: Duncan R. Lorimer, Krzysztof Belczynski, J. P. Ridley, Stephen J. Curran

Publikováno v: Monthly Notices of the Royal Astronomical Society. 407:1245-1254

We investigate the statistics of isolated recycled pulsars and double neutron star binaries in the Galactic disk. Since recycled pulsars are believed to form through accretion and spinup in close binaries, the isolated objects presumably originate fr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b094a3f85ee8e0f39c63f555cf699752
https://doi.org/10.1111/j.1365-2966.2010.16970.x

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The large-scale atomic and molecular gas in the Circinus galaxy

Autor: Bärbel S. Koribalski, Stephen J. Curran, Indra Bains

Publikováno v: Monthly Notices of the Royal Astronomical Society. 389:63-74

We have used the ATCA and the SEST to map the large-scale atomic and molecular gas in the nearby Circinus galaxy. The HI mosaic of Circinus exhibits the warps in position angle and inclination revealed in the single-pointing image, both of which appe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ccfae0f565feb1bf37b60ea14b95ffe
https://doi.org/10.1111/j.1365-2966.2008.13574.x

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Further results on the enumeration of hamilton paths in Cayley digraphs on semidirect products of cyclic groups

Autor: Stephen J. Curran

Publikováno v: Discrete Mathematics. 308:1889-1908

First, let m and n be positive integers such that n is odd and gcd(m,n)=1. Let G be the semidirect product of cyclic groups given by G=Z8m⋊Z2n=〈x,y:x8m=1,y2n=1,andyxy-1=x4m+1〉. Then the number of hamilton paths in Cay(G:x,y) (with initial verte

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab285b21735c86ad06aac2847c01f537
https://doi.org/10.1016/j.disc.2007.04.036

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