Results 101 to 110 of about 14,468 (304)

Ooty Occultations of 76 radio sources

open access: yesThe Astronomical Journal, 1974
Positional and structural information derived from lunar occultations observed at 327 MHz is presented for 76 radio sources, most of them of flux density less than 2×10 -26 Wm -2 Hz -1 . Only 16 sources are optically identified. Two of the stronger sources in the list, viz. PKS 1417-19 and MSH 16-205 have a head-tail type of radio structure.
Vijay K. Kapahi   +2 more
openaire   +1 more source

Methanol‐Ethanol Discrimination and Selective Sensing Enabled by Molecular Sieving in Conductive MOFs

open access: yesAdvanced Materials, EarlyView.
Selective methanol sensors are achieved by coating carbon nanotube chemiresistors with two dimensional conductive metal–organic frameworks that incorporate intra‐pore clusters. These confined clusters increase the density of adsorption sites while restricting the transport of larger interfering molecules, particularly ethanol. This sensing architecture
Young‐Moo Jo   +4 more
wiley   +1 more source

Feasibility of multi-satellite occultation /refraction/ measurements for meteorology Final report [PDF]

open access: yes
Radio refraction and occultation techniques for atmospheric density measurements between multiple ...
Goldman, H. J., Miller, J. D.
core   +1 more source

IMPACT OF IONOSPHERIC HORIZONTAL ASYMMETRY ON ELECTRON DENSITY PROFILES DERIVED BY GNSS RADIO OCCULTATION [PDF]

open access: yes, 2013
The ‘Onion-peeling' algorithm is a very common technique used to invert Radio Occultation (RO) data in the ionosphere. Because of the implicit assumption of spherical symmetry for the electron density distribution in the ionosphere, the standard Onion ...
Dovis, Fabio   +3 more
core  

Jupiter's Occultation Radii: Implications for its Internal Dynamics

open access: yes, 2011
The physical shape of a giant planet can reveal important information about its centrifugal potential, and therefore, its rotation. In this paper I investigate the response of Jupiter's shape to differential rotation on cylinders of various cylindrical ...
Aurnou   +30 more
core   +1 more source

Self‐Seeded Nucleation of PET in a Benign Solvent Yields a High Modulus Aerogel With Ultra‐Low Thermal Conductivity

open access: yesAdvanced Materials, EarlyView.
A new benign solvent (1,3‐diphenylacetone) enables a simple, safe, and sustainable dissolution and gelation method to convert waste PET into low density, monolithic aerogels with high mechanical strength (E = 20 MPa) and remarkably low thermal conductivity (k = 21.9 to 28.9 mW/m·K).
Kira R. Baugh   +9 more
wiley   +1 more source

Assessment of Accuracy of COSMIC and KOMPSAT GNSS Radio Occultation Temperature and Pressure Measurements over the Philippines

open access: yesAtmosphere
Radio occultation (RO) is a technique used for measuring planetary atmosphere properties by orbiting satellites, like temperature, pressure, and water vapor.
Karl Philippe A. Descalzo   +1 more
doaj   +1 more source

The Mariner Jupiter/Saturn ring occultation experiment [PDF]

open access: yes
Radio occultation measurements of Saturn's rings as measured by the Mariner Jupiter/Saturn radio science experiment are reported. These signal measurements provide information on size, distribution, and density of particle material found in the ...
Eshleman, V. R.
core   +1 more source

Earth Occultation Imaging of the Low Energy Gamma-Ray Sky with GBM

open access: yes, 2014
The Earth Occultation Technique (EOT) has been applied to Fermi's Gamma-ray Burst Monitor (GBM) to perform all-sky monitoring for a predetermined catalog of hard X-ray/soft gamma-ray sources.
Camero-Arranz, A.   +7 more
core   +1 more source

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