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2005, AIP conference proceedings, ISBN 0735402906, Volume no. 801., xiii, 418
eBook
Annual Review of Astronomy and Astrophysics, ISSN 0066-4146, 9/2016, Volume 54, Issue 1, pp. 725 - 760
This article reviews the recent observational results regarding γ-ray emission from active galaxies. The most numerous discrete extragalactic γ-ray sources are... 
supermassive black holes | gamma-rays | AGN jets | Gamma-rays | Supermassive black holes | ADVECTION-DOMINATED ACCRETION | RELATIVISTIC JETS | MRK 421 | SYNCHROTRON-RADIATION | LARGE-AREA TELESCOPE | MAGNETOSONIC SHOCK-WAVES | BLACK-HOLES | PARTICLE-ACCELERATION | ASTRONOMY & ASTROPHYSICS | X-RAY | BL-LAC OBJECTS | Natural history | Galactic nuclei | Blazars (Astronomy) | Gamma ray astronomy
Journal Article
RAIRO-THEORETICAL INFORMATICS AND APPLICATIONS, ISSN 0988-3754, 04/2018, Volume 52, Issue 2-4, pp. 219 - 234
A permutation rule is a non-context-free rule whose both sides contain the same multiset of symbols with at least one non-terminal. This rule does not add or... 
decidability | Permutation languages | regular grammars | generative power | COMPUTER SCIENCE, INFORMATION SYSTEMS | context-free grammars | linear grammars | closure properties | interchange rules | Permutations | Languages | Symbols | Grammars
Journal Article
Annual Review of Astronomy and Astrophysics, ISSN 0066-4146, 01/2016, Volume 54, pp. 725 - 725
  This article reviews the recent observational results regarding γ-ray emission from active galaxies. The most numerous discrete extragalactic γ-ray sources... 
Quasars | Space telescopes | Energy dissipation | Black holes | Spectrum analysis | Gamma ray astronomy | Gamma rays | Active galaxies | Broadband | Jets | Blazars | Spectra | Particle acceleration | Arrays
Journal Article
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), ISSN 0302-9743, 2015, Volume 9223, pp. 211 - 223
Conference Proceeding
Fundamenta Informaticae, ISSN 0169-2968, 2014, Volume 130, Issue 3, pp. 263 - 274
Permutation grammars are an extension of context-free grammars with rules having the same symbols on both sides but possibly in a different order. An example... 
Infinite hierarchy | Permutation grammar | Interchange rule | Context-free grammars | COMPUTER SCIENCE, SOFTWARE ENGINEERING | MATHEMATICS, APPLIED | interchange rule | context-free grammars | SHUFFLE | infinite hierarchy | Permutations | Hierarchies | Inclusions | Symbols | Grammars
Journal Article
Journal of Theoretical and Applied Mechanics (Poland), ISSN 1429-2955, 2016, Volume 54, Issue 4, pp. 1379 - 1390
Journal Article
The Astrophysical Journal Letters, ISSN 1538-4357, 10/2008, Volume 686, Issue 1, pp. L13 - L16
Journal Article
by Aharonian, Felix and Akamatsu, Hiroki and Akimoto, Fumie and Allen, Steven W and Anabuki, Naohisa and Angelini, Lorella and Arnaud, Keith and Audard, Marc and Awaki, Hisamitsu and Axelsson, Magnus and Bamba, Aya and Bautz, Marshall and Blandford, Roger and Brenneman, Laura and Brown, Gregory V and Bulbul, Esra and Cackett, Edward and Chernyakova, Maria and Chiao, Meng and Coppi, Paolo and Costantini, Elisa and De Plaa, Jelle and Den Herder, Jan-Willem and Done, Chris and Dotani, Tadayasu and Ebisawa, Ken and Eckart, Megan and Enoto, Teruaki and Ezoe, Yuichiro and Fabian, Andrew C and Ferrigno, Carlo and Foster, Adam and Fujimoto, Ryuichi and Fukazawa, Yasushi and Furuzawa, Akihiro and Galeazzi, Massimiliano and Gallo, Luigi and Gandhi, Poshak and Giustini, Margherita and Goldwurm, Andrea and Gu, Liyi and Guainazzi, Matteo and Haba, Yoshito and Hagino, Kouichi and Hamaguchi, Kenji and Harrus, Ilana and Hatsukade, Isamu and Hayashi, Katsuhiro and Hayashi, Takayuki and Hayashida, Kiyoshi and Hiraga, Junko and Hornschemeier, Ann and Hoshino, Akio and Hughes, John and Iizuka, Ryo and Inoue, Hajime and Inoue, Yoshiyuki and Ishibashi, Kazunori and Ishida, Manabu and Ishikawa, Kumi and Ishisaki, Yoshitaka and Itoh, Masayuki and Iyomoto, Naoko and Kaastra, Jelle and Kallman, Timothy and Kamae, Tuneyoshi and Kara, Erin and Kataoka, Jun and Katsuda, Satoru and Katsuta, Junichiro and Kawaharada, Madoka and Kawai, Nobuyuki and Kelley, Richard and Khangulyan, Dmitry and Kilbourne, Caroline and King, Ashley and Kitaguchi, Takao and Kitamoto, Shunji and Kitayama, Tetsu and Kohmura, Takayoshi and Kokubun, Motohide and Koyama, Shu and Koyama, Katsuji and Kretschmar, Peter and Krimm, Hans and Kubota, Aya and Kunieda, Hideyo and Laurent, Philippe and Lebrun, François and Lee, Shiu-Hang and Leutenegger, Maurice and Limousin, Olivier and Loewenstein, Michael and Long, Knox S and Lumb, David and Madejski, Grzegorz and Maeda, Yoshitomo and Maier, Daniel and Makishima, Kazuo and Markevitch, Maxim and ... and Hitomi Collaboration and SLAC National Accelerator Lab., Menlo Park, CA (United States)
Nature, ISSN 0028-0836, 07/2016, Volume 535, Issue 7610, pp. 117 - 121
Clusters of galaxies are the most massive gravitationally bound objects in the Universe and are still forming. They are thus important probes(1) of... 
NGC 1275 | GALAXY CLUSTERS | TURBULENT VELOCITY | MULTIDISCIPLINARY SCIENCES | LINE | GAS | NGC-1275 | CONSTRAINTS | X-RAY SPECTROSCOPY | XMM-NEWTON | FEEDBACK | Clusters | Observations | Stars | Cosmology | Astrophysics | Velocity | Stars & galaxies | ASTRONOMY AND ASTROPHYSICS | GRQC | ASTRO
Journal Article
Fatigue of Aircraft Structures, ISSN 2081-7738, 12/2017, Volume 2017, Issue 9, pp. 27 - 37
Static tension test allows characterization of material strength properties. This simple test provides input data for numerical calculation of structural... 
failure criterion | equivalent plastic strain | tensile test | Nickel base alloys | Strain localization | Error analysis | Deformation | Parameters | Computer simulation | Tensile tests | Necking | Plastic deformation | Criteria | High temperature | Superalloys | Finite element method | Equivalence | Tension tests | Mathematical models | Position (location) | Localization | Failure | Elongation | Strain rate
Journal Article
Astrophysical Journal, ISSN 0004-637X, 10/2013, Volume 776, Issue 1
While the cosmic soft X-ray background is very likely to originate from individual Seyfert galaxies, the origin of the cosmic hard X-ray and MeV gamma-ray... 
MEV RANGE | HARD X RADIATION | GAMMA RADIATION | CORRELATIONS | KEV RANGE | ACCRETION DISKS | ANISOTROPY | BLACK HOLES | QUASARS | SOFT X RADIATION | ASTROPHYSICS, COSMOLOGY AND ASTRONOMY | ASTRONOMY | ASTROPHYSICS | BACKGROUND RADIATION | COSMIC PHOTONS | SEYFERT GALAXIES | GALAXY NUCLEI
Journal Article
Astrophysical Journal, ISSN 0004-637X, 09/2013, Volume 776, Issue 1
While the cosmic soft X-ray background is very likely to originate from individual Seyfert galaxies, the origin of the cosmic hard X-ray and MeV gamma-ray... 
ASTRO | ASTRONOMY AND ASTROPHYSICS
Journal Article
Astrophysical Journal Letters, ISSN 2041-8205, 02/2014, Volume 781, Issue 2
Our understanding of the nature of the extragalactic background light (EBL) has improved with the recent development of gamma-ray observation techniques. An... 
GAMMA RADIATION | LIMITING VALUES | PHOTONS | OPACITY | COMPARATIVE EVALUATIONS | PROBES | COSMIC RADIATION | HYDROGEN | ASTROPHYSICS, COSMOLOGY AND ASTRONOMY | INTERGALACTIC SPACE | BACKGROUND RADIATION | STARS | GALAXIES | VISIBLE RADIATION
Journal Article
Baltic Journal of Health and Physical Activity, ISSN 2080-9999, 09/2017, Volume 9, Issue 3, pp. 33 - 43
Journal Article