Results 31 to 40 of about 285,207 (274)

An Empirical Determination of the Intergalactic Background Light Using NIR Deep Galaxy Survey Data out to 5 microns and the Gamma-ray Opacity of the Universe [PDF]

open access: yes, 2014
We extend our previous model-independent determination of the intergalactic background light (IBL), based purely on galaxy survey data, out to a wavelength of 5 microns.
Malkan, Matthew A.   +2 more
core   +3 more sources

L-Band Vegetation Optical Depth Estimation Using Transmitted GNSS Signals: Application to GNSS-Reflectometry and Positioning

open access: yesRemote Sensing, 2020
At L-band (1–2 GHz), and particularly in microwave radiometry (1.413 GHz), vegetation has been traditionally modeled with the τ-ω model. This model has also been used to compensate for vegetation effects in Global Navigation Satellite Systems ...
Adriano Camps   +5 more
doaj   +1 more source

Checking and Enforcing Security through Opacity in Healthcare Applications

open access: yes, 2017
The Internet of Things (IoT) is a paradigm that can tremendously revolutionize health care thus benefiting both hospitals, doctors and patients. In this context, protecting the IoT in health care against interference, including service attacks and ...
A Bourouis   +8 more
core   +1 more source

Radiographic findings in adults with chronic cough in Nigeria

open access: yesIndian Journal of Health Sciences and Biomedical Research KLEU, 2018
BACKGROUND: A cough is the major functional mechanism which is responsible for the clearance of secretions from the respiratory tract and serves as an important defense mechanism, and chest X-ray is the commonly indicated examination in this category of ...
Falmata Audu Gubio   +2 more
doaj   +1 more source

Empirical Line Lists in the ExoMol Database

open access: yesAtoms, 2020
The ExoMol database aims to provide comprehensive molecular line lists for exoplanetary and other hot atmospheres. The data are expanded by inclusion of empirically derived line lists taken from the literature for a series of diatomic molecules, namely ...
Yixin Wang   +2 more
doaj   +1 more source

Rosseland and flux mean opacities for Compton scattering

open access: yes, 2016
Rosseland mean opacity plays an important role in theories of stellar evolution and X-ray burst models. In the high-temperature regime, when most of the gas is completely ionized, the opacity is dominated by Compton scattering.
Poutanen, Juri
core   +1 more source

Low Temperature Opacities

open access: yes, 2005
Previous computations of low temperature Rosseland and Planck mean opacities from Alexander & Ferguson (1994) are updated and expanded. The new computations include a more complete equation of state with more grain species and updated optical constants ...
Akemi Tamanai   +29 more
core   +1 more source

The Effects of Metallicity, and Grain Growth and Settling on the Early Evolution of Gaseous Protoplanets [PDF]

open access: yes, 2010
Giant protoplanets formed by gravitational instability in the outer regions of circumstellar disks go through an early phase of quasi-static contraction during which radii are large and internal temperatures are low.
Bodenheimer, Peter, Helled, Ravit
core   +1 more source

The effect of foot orthoses on midfoot pain and the volume of bone marrow lesions in the midfoot: a randomized mechanism of action study

open access: yesArthritis Care &Research, Accepted Article.
Objective Foot orthoses are thought to improve pain by potentially modifying internal mechanical forces. To test this, we explored whether foot orthoses can modify patterns of bone marrow lesions (BMLs) in people with midfoot pain. Methods Forty‐two people were recruited with midfoot pain and MRI‐confirmed midfoot BMLs.
Jill Halstead   +4 more
wiley   +1 more source

Opaque Softening: A Usage-Based Approach

open access: yesPoljarnyj Vestnik: Norwegian Journal of Slavic Studies, 2005
Based on an analysis of softening alternations in Russian, this paper explores the problem of phonological opacity in cognitive linguistics.
Tore Nesset
doaj   +1 more source

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