Results 51 to 60 of about 3,828,801 (284)

A long hard look at MCG-6-30-15 with XMM-Newton and BeppoSAX

, 2003
We summarise the primary results from a 320 ks observation of the bright Seyfert 1 galaxy MCG-6-30-15 with XMM-Newton and Beppo-SAX.Comment: 4 pages, 6 figures. Proc. of the meeting: "The Restless High-Energy Universe" (Amsterdam, The Netherlands), E.P.
A.C. Fabian, A.K. Turner, Ballantyne, Branduardi-Raymont, Fabian, Fabian, Fabian, Inoue, Iwasawa, Iwasawa, K. Iwasawa, Laor, Lee, Lee, Lee, Lubinski, Matt, Pounds, Reynolds, S. Vaughan, Shih, Tanaka, Taylor, Vaughan, Vaughan, Wilms   +25 more
core   +1 more source

Curves on Heisenberg invariant quartic surfaces in projective 3-space [PDF]

, 2018
This paper is about the family of smooth quartic surfaces $X \subset \mathbb{P}^3$ that are invariant under the Heisenberg group $H_{2,2}$. For a very general such surface $X$, we show that the Picard number of $X$ is 16 and determine its Picard group ...
A Garbagnati, A Verra, B Hunt, B Segre, CM Jessop, D Huybrechts, D Maulik, D Mumford, G Geer van der, HF Baker, I Naruki, I Nieto, I Nieto, II Pyatetskii-Shapiro, IV Dolgachev, IV Dolgachev, J Kollár, L Godeaux, LE Dickson, ME Traynard, MR Gonzalez-Dorrego, RWHT Hudson, S Mukai, VA Iskovskikh, W Barth, WL Edge   +25 more
core   +2 more sources

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

Advanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira, Marcella Gaute Cavalcante Xavier, Abdoul‐Aziz Bogno, Piter Gargarella, José Eduardo Spinelli   +4 more
wiley   +1 more source

Political Parties and Popular Representation in Myanmar’s Democratisation Process

Journal of Current Southeast Asian Affairs, 2015
The article examines the role of political parties in Myanmar’s democratisation process. We argue that the substance of democratisation depends on popular representation through political parties but question their capacity to provide such ...
Kristian Stokke, Khine Win, Soe Myint Aung   +2 more
doaj  

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

Advanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek, Jakub Hurník, Miroslav Šmíd, Ondřej Zobač, Melanie Todt, Daniel Koutný   +5 more
wiley   +1 more source

Censoring the Press: A Barometer of Government Tolerance for Anti-regime Dissent under Authoritarian Rule

Journal of Politics in Latin America, 2016
This paper proposes that dissident leaders aiming to build mass opposition movements follow the mainstream press to help them gauge government tolerance for anti-government mass actions in repressive authoritarian regimes. Under conditions of censorship,
Elizabeth Ann Stein
doaj  

Ultrahigh energy neutrino scattering onto relic light neutrinos in galactic halo as a possible source of highest energy extragalactic cosmic rays [PDF]

, 1997
The diffuse relic neutrinos with light mass are transparent to Ultrahigh energy (UHE) neutrinos at thousands EeV, born by photoproduction of pions by UHE protons on relic 2.73 K BBR radiation and originated in AGNs at cosmic distances. However these UHE $
A. Salis, B. Mele, Berezinsky V. S., D. Fargion, Fargion D., Zat'sepin G. T., Zeldovich Ya. B.   +6 more
core   +2 more sources

Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann, Berend Denkena, Hilke Petersen, Florian Schaper   +3 more
wiley   +1 more source

Editorial Editorial

Journal of Politics in Latin America, 2009
Editorial of Vol. 1, No. 1 (2009) of the "Journal of Politics in Latin America" (JPLA). Editorial del Vol. 1, No. 1 (2009) del “"Journal of Politics in Latin America" (JPLA).
Jorge Gordin
doaj  

Conditional probabilities for a single photon at a beam splitter

, 1996
Published ...
A. Aspect, B. J. Oliver, D. F. Walls, E. Arthurs, H. Weyl, J. G. Rarity, J. G. Rarity, J. G. Walker, J. H. Jefferson, K. Jacobs, L. Hardy, M. Freyberger, M. Freyberger, M. Freyberger, M. Freyberger, M. Hillery, N. G. Walker, N. G. Walker, P. D. Townsend, P. D. Townsend, P. G. Kwiat, P. Grangier, P. Hariharan, P. Hariharan, P. Hariharan, P. Hariharan, P. L. Knight, P. R. Tapster, R. Loudon, R. Y. Chiao, S. Abe, S. M. Tan, S. M. Tan, S. Stenholm, U. Leonhardt, U. Leonhardt, V. I. Tatarskij, W. Grice, Y. S. Kim   +38 more
core   +1 more source