Results 41 to 50 of about 264,735 (274)
The Anisoplanatic Point Spread Function in Adaptive Optics [PDF]
, 2006 The effects of anisoplanatism on the adaptive optics point spread function are investigated. A model is derived that combines observations of the guide star with an analytic formulation of anisoplanatism to generate predictions for the adaptive optics ...
Ellerbroek B. +4 more
core +2 more sources
, 2010 We analyze the gamma-ray halo around stacked AGNs reported in Ap.J.Lett., 2010, 722, L39. First, we show that the angular distribution of gamma-rays around the stacked AGNs is consistent with the angular distribution of the gamma-rays around the Crab ...
Neronov, A. +3 more
core +3 more sources
Energy and momentum flux in a high-numerical-aperture beam using the extended Nijboer-Zernike diffraction formalism [PDF]
Journal of the European Optical Society-Rapid Publications, 2007 We describe the energy and momentum flux in the case of an aberrated optical imaging system with a high numerical aperture (NA). The approach is based on the extended Nijboer-Zernike diffraction theory, that, in its high-NA version, yields an accurate ...
Braat Joseph J. M. +3 more
doaj +1 more source
A global simulation for laser driven MeV electrons in $50\mu m$-diameter fast ignition targets
, 2006 The results from 2.5-dimensional Particle-in-Cell simulations for the interaction of a picosecond-long ignition laser pulse with a plasma pellet of 50-$\mu m$ diameter and 40 critical density are presented.
A. Heron +10 more
core +1 more source
The Mass Dependence of Stellar Rotation in the Orion Nebula Cluster [PDF]
, 2001 We have determined new rotation periods for 404 stars in the Orion Nebula Cluster using the Wide Field Imager attached to the MPG/ESO 2.2 m telescope on La Silla, Chile. Mass estimates are available for 335 of these and most have M < 0.3 M_sun.
C. A. L. Bailer-Jones +3 more
core +2 more sources
Spatial Characteristics of Wideband Channels Using Leaky Coaxial Cables in Tunnel Scenario
International Journal of Antennas and Propagation, 2019 This paper presents the spatial domain and propagation characteristics of different wideband channels using leaky coaxial cables (LCXs) for underground environment at 1.8GHz corresponding to the Long Term Evolution for Metro (LTE-M) standards.
Asad Saleem +3 more
doaj +1 more source
A study of antenna array based multipath propagation phenomenon in LAS-CDMA standard [PDF]
, 2004 Throughout the history of wireless communications, spatially diversity's antenna array system has being important in improving the radio link between wireless users.
Ismail, Mahamod +4 more
core +1 more source
Experimental Study of Disc Fertilizer Spreader Performance
Agriculture, 2020 We report the experimental results of tests aimed at assessing the effects of different settings on the mean radius of mineral fertilizer distribution using a disc fertilizer spreader.
Artur Przywara +4 more
doaj +1 more source
Quantum and classical ripples in graphene
, 2018 Thermal ripples of graphene are well understood at room temperature, but their quantum counterparts at low temperatures are still in need of a realistic quantitative description.
Hasik, Juraj +2 more
core +1 more source
FEBS Letters, EarlyView.In this study, we present the structure of AcrIE8.1, a previously uncharacterized anti‐CRISPR protein that inhibits the type I‐E CRISPR‐Cas system. Through a combination of structural and biochemical analyses, we demonstrate that AcrIE8.1 directly binds to the Cas11 subunit of the Cascade complex to inhibit the CRISPR‐Cas system.
Young Woo Kang, Hyun Ho Park
wiley +1 more source