Results 71 to 80 of about 862,547 (224)

Wide-band, low-frequency pulse profiles of 100 radio pulsars with LOFAR [PDF]

, 2015
Context. LOFAR offers the unique capability of observing pulsars across the 10−240 MHz frequency range with a fractional bandwidth of roughly 50%. This spectral range is well suited for studying the frequency evolution of pulse profile morphology caused ...
M. Pilia, M. Pilia, J. Hessels, J. Hessels, B. Stappers, V. Kondratiev, V. Kondratiev, M. Kramer, Michael Kramer, J. V. Leeuwen, J. V. Leeuwen, P. Weltevrede, A. Lyne, K. Zagkouris, T. Hassall, A. Bilous, R. Breton, H. Falcke, H. Falcke, J. Grießmeier, E. Keane, E. Keane, A. Karastergiou, M. Kuniyoshi, A. Noutsos, S. Osłowski, S. Osłowski, M. Serylak, C. Sobey, S. Veen, A. Alexov, John T. Anderson, A. Asgekar, A. Asgekar, I. Avruch, M. Bell, M. Bentum, M. Bentum, G. Bernardi, L. Bîrzan, A. Bonafede, F. Breitling, J. Broderick, J. Broderick, M. Brüggen, B. Ciardi, S. Corbel, S. Corbel, E. D. Geus, A. D. Jong, A. Deller, S. Duscha, J. Eislöffel, R. Fallows, R. Fender, C. Ferrari, W. Frieswijk, M. A. Garrett, M. A. Garrett, A. Gunst, J. Hamaker, G. Heald, A. Horneffer, P. Jonker, E. Juette, G. Kuper, P. Maat, G. Mann, S. Markoff, R. McFadden, D. McKay-Bukowski, D. McKay-Bukowski, J. Miller-Jones, A. Nelles, H. Paas, M. Pandey-Pommier, M. Piętka, R. Pizzo, A. Polatidis, W. Reich, H. Röttgering, A. Rowlinson, D. Schwarz, O. Smirnov, M. Steinmetz, A. Stewart, J. Swinbank, M. Tagger, Y. Tang, C. Tasse, S. Thoudam, M. C. Toribio, A. Horst, R. Vermeulen, C. Vocks, R. Weeren, R. Wijers, R. Wijnands, S. Wijnholds, O. Wucknitz, P. Zarka   +100 more
semanticscholar   +1 more source

Tuning the Geometric and Electronic Structures in PtMn/SiO2 Catalysts via Oxygen Plasma Treatment for Enhanced Propane Dehydrogenation

Carbon and Hydrogen, Volume 28, Issue 2, Page 184-195, June 2026.
Oxygen plasma treatment promotes Pt dispersion, reducing the average Pt particle size of PtMn catalyst from 2.7 to 1.2 nm, and increases the electron cloud density of Pt. The optimized catalyst exhibits excellent mass‐normalized activity (171 molC3H8·gPt−1·h−1) and an ultralow deactivation rate constant, outperforming most reported Pt‐based catalysts ...
Wulin Yan, Ming Li, Hao Wang, Limin Zhang, Yaowen Gu, Guanghui Zhang, Xinwen Guo   +6 more
wiley   +1 more source

Observing Radio Pulsars in the Galactic Centre with the Square Kilometre Array [PDF]

, 2015
The discovery and timing of radio pulsars within the Galactic centre is a fundamental aspect of the SKA Science Case, responding to the topic of "Strong Field Tests of Gravity with Pulsars and Black Holes" (Kramer et al. 2004; Cordes et al.
R. Eatough, T. Lazio, J. Casanellas, S. Chatterjee, J. Cordes, P. Demorest, M. Kramer, K. Lee, K. Liu, S. Ransom, N. Wex   +10 more
semanticscholar   +1 more source

Grafting Nanolayers of Ni and Co Catalysts Around the Edges of Hierarchical Zeolite 13X by Leveraging the Crystal's Defects for CO2 Methanation

Carbon Energy, Volume 8, Issue 6, June 2026.
The deactivation of nickel‐based catalysts at high temperatures poses a significant challenge in CO2 methanation processes. To address this, a strong metal–support interaction between nickel and the support was engineered by exploiting the crystal defects present in hierarchical porous zeolite 13X.
Nasir Shezad, Muddasar Safdar, Shaojiang Chen, Cheuk‐Wai Tai, Harvey Arellano‐García, Dong‐Kyun Seo, Peizhong Feng, Farid Akhtar   +7 more
wiley   +1 more source

A 350 MHz Green Bank Telescope Survey of Unassociated Fermi LAT Sources: Discovery and Timing of 10 Millisecond Pulsars

The Astrophysical Journal
We have searched for radio pulsations toward 49 Fermi Large Area Telescope (LAT) 1FGL Catalog γ -ray sources using the Green Bank Telescope at 350 MHz. We detected 18 millisecond pulsars (MSPs) in blind searches of the data; 10 of these were discoveries ...
P. Bangale, B. Bhattacharyya, F. Camilo, C. J. Clark, I. Cognard, M. E. DeCesar, E. C. Ferrara, P. Gentile, L. Guillemot, J. W. T. Hessels, T. J. Johnson, M. Kerr, M. A. McLaughlin, L. Nieder, S. M. Ransom, P. S. Ray, M. S. E. Roberts, J. Roy, S. Sanpa-arsa, G. Theureau, M. T. Wolff   +20 more
doaj   +1 more source

Proteomic and Super‐Resolution Analyses of Murine Brown Adipocyte‐Derived Extracellular Vesicles

Journal of Extracellular Biology, Volume 5, Issue 5, May 2026.
Graphical Abstract ABSTRACT Thermogenic brown adipocytes (BAs) are not only an energy sink but also regulate systemic metabolic health through secreted factors and extracellular vesicles (EVs). Here, we investigate the baseline profiles BA‐EVs and how cold‐induced thermogenesis alters the proteome of BA‐EVs.
Menchus Quan, Yi‐Kai Liu, Maryam Mahmoodi, Muhammad Asif, Madeline Kay, Yongjie Yang, Fang Huang, Weiguo Andy Tao, Shihuan Kuang   +8 more
wiley   +1 more source

Discovery and Timing of Four γ-Ray Millisecond Pulsars

The Astrophysical Journal
We discovered four millisecond pulsars (MSPs) in searches of 80 γ -ray sources conducted from 2015 to 2017 with the Murriyang radio telescope of the Parkes Observatory.
M. Kerr, S. Johnston, C. J. Clark, F. Camilo, E. C. Ferrara, M. T. Wolff, S. M. Ransom, S. Dai, P. S. Ray, J. E. Reynolds, J. M. Sarkissian, E. D. Barr, M. K. Kramer, B. W. Stappers   +13 more
doaj   +1 more source

Gamma-ray emission from millisecond pulsars - an Outergap perspective [PDF]

Journal of Astronomy and Space Sciences, 2013
In this review paper we explain the following gamma-ray emission features from the millisecond pulsars. (1) Why is the dipolar field of millisecond pulsars so weak but the magnetic pair creation process may still be able to control the size of the ...
Kwong Sang Cheng
doaj   +1 more source

HUNTING FOR ORPHANED CENTRAL COMPACT OBJECTS AMONG RADIO PULSARS [PDF]

, 2015
Central compact objects (CCOs) are a handful of young neutron stars found at the center of supernova remnants (SNRs). They show high thermal X-ray luminosities but no radio emission.
Jie Luo, C. Ng, W. C. Ho, S. Bogdanov, V. Kaspi, Chenyu He   +5 more
semanticscholar   +1 more source

A Perspective of Multi‐Reflecting TOF MS

Mass Spectrometry Reviews, Volume 45, Issue 3, Page 476-506, May/June 2026.
ABSTRACT Time‐of‐flight mass spectrometry (TOF MS) excels in rapid and high‐sensitivity analysis, making it a cornerstone of analytical chemistry. But as sample complexity explodes in omics studies, so does the need for higher resolving power to ensure accurate results.
A. N. Verenchikov, V. V. Makarov, A. V. Vorobyev, S. N. Kirillov   +3 more
wiley   +1 more source