Results 41 to 50 of about 455,998 (205)

Point Process Algorithm: A New Bayesian Approach for Planet Signal Extraction with the Terrestrial Planet Finder [PDF]

open access: yes, 2006
The capability of the Terrestrial Planet Finder Interferometer (TPF-I) for planetary signal extraction, including both detection and spectral characterization, can be optimized by taking proper account of instrumental characteristics and astrophysical ...
Brent Ware   +7 more
core   +2 more sources

Analysis and Design of a Leading Edge with Morphing Capabilities for the Wing of a Regional Aircraft—Gapless Chord- and Camber-Increase for High-Lift Performance

open access: yesApplied Sciences, 2021
In order to contribute to achieving noise and emission reduction goals, Fraunhofer and Airbus deal with the development of a morphing leading edge (MLE) as a high lift device for aircraft.
Conchin Contell Asins   +6 more
doaj   +1 more source

An emerging aerosol climatology via remote sensing over Metro Manila, the Philippines [PDF]

open access: yesAtmospheric Chemistry and Physics, 2023
Aerosol particles in Southeast Asia are challenging to characterize due to their complex life cycle within the diverse topography and weather of the region.
G. R. Lorenzo   +17 more
doaj   +1 more source

A multi-scale multi-frequency deconvolution algorithm for synthesis imaging in radio interferometry

open access: yes, 2011
Aims : We describe MS-MFS, a multi-scale multi-frequency deconvolution algorithm for wide-band synthesis-imaging, and present imaging results that illustrate the capabilities of the algorithm and the conditions under which it is feasible and gives ...
Bhatnagar   +18 more
core   +1 more source

Multibaseline gravitational wave radiometry [PDF]

open access: yes, 2011
We present a statistic for the detection of stochastic gravitational wave backgrounds (SGWBs) using radiometry with a network of multiple baselines. We also quantitatively compare the sensitivities of existing baselines and their network to SGWBs.
C. W. Helstrom   +3 more
core   +2 more sources

Augmented Aircraft Performance with the Use of Morphing Technology for a Turboprop Regional Aircraft Wing

open access: yesBiomimetics, 2019
This article presents some application of the morphing technology for aerodynamic performance improvement of turboprop regional aircraft. It summarizes the results obtained in the framework of the Clean Sky 2 AIRGREEN2 program for the development and ...
Frédéric Moens
doaj   +1 more source

Robust sparse image reconstruction of radio interferometric observations with purify [PDF]

open access: yes, 2016
Next-generation radio interferometers, such as the Square Kilometre Array (SKA), will revolutionise our understanding of the universe through their unprecedented sensitivity and resolution.
Carrillo, Rafael E.   +5 more
core   +4 more sources

An Investigation of Ionization Technology for Cleaning Cabin Air in a Business Jet

open access: yesEngineering Proceedings
This paper describes an experimental investigation on the spread of a virus in a business jet cabin and the potential of ionization to reduce the pathogen load.
Victor Norrefeldt   +7 more
doaj   +1 more source

The Quran and the Sunnah on the Civilization Value of Cleanliness

open access: yesAmerican Journal of Islam and Society, 1991
Translation In the name of Allah, Most Gracious, Most Merciful. 1. And He it is Who sends The Winds as heralds Of glad tidings, going before His Mercy, and We send down Pure water from the sky. Al Furqan (25:48) 2. Remember He covered you With drowsiness,
AbdulHamid A. AbuSulayman
doaj   +1 more source

Astrophysical foregrounds and primordial tensor-to-scalar ratio constraints from CMB B-mode polarization observations

open access: yes, 2012
We study the effects of astrophysical foregrounds on the ability of CMB B-mode polarization experiments to constrain the primordial tensor-to-scalar ratio, r.
Errard, Josquin, Stompor, Radek
core   +3 more sources

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