Results 31 to 40 of about 94 (84)

A Comprehensive Review: The Evolution of Animal Models in Pulmonary Hypertension Research; Are We there Yet?

open access: yesPulmonary Circulation, Volume 3, Issue 4, Page 739-756, December 2013., 2013
Pulmonary hypertension (PH) is a disorder that develops as a result of remodeling of the pulmonary vasculature and is characterized by narrowing/obliteration of small pulmonary arteries, leading to increased mean pulmonary artery pressure and pulmonary vascular resistance. Subsequently, PH increases the right ventricular afterload, which leads to right
Gerald Maarman   +4 more
wiley   +1 more source

Bidirectional reflectance distribution function measurements of characterized Apollo regolith samples using the visible oxford space environment goniometer

open access: yesMeteoritics &Planetary Science, Volume 59, Issue 11, Page 3111-3123, November 2024.
Abstract A laboratory study was performed using the Visible Oxford Space Environment Goniometer in which the broadband (350–1250 nm) bidirectional reflectance distribution functions (BRDFs) of two representative Apollo regolith samples were measured, for two surface roughness profiles, across a range of viewing angles—reflectance: 0–70°, in steps of 5°;
R. J. Curtis   +4 more
wiley   +1 more source

Signature of Plausible Accreting Supermassive Black Holes in Mrk 261/262 and Mrk 266

open access: yesAdvances in Astronomy, Volume 2013, Issue 1, 2013., 2013
We address the neutrino radiation of plausible accreting supermassive black holes closely linking to the 5 nuclear components of galaxy samples of Mrk 261/262 and Mrk 266. We predict a time delay before neutrino emission of the same scale as the age of the Universe. The ultrahigh energy neutrinos are produced in superdense protomatter medium via simple
Gagik Ter-Kazarian   +2 more
wiley   +1 more source

Application of the Method of Initial Functions to Study Dynamics and Stress Distribution in Structural Members

open access: yesAdvances in Civil Engineering, Volume 2024, Issue 1, 2024.
This study investigates plate analyses employing the method of initial functions (MIFs) across various plate geometries and loading conditions. The conclusions derived from thick rectangular plates highlight substantial thickness‐induced effects on deflection and stress distributions.
Jitendra Namdeo   +4 more
wiley   +1 more source

On the Cosmic Ray‐Induced Ionization Rate in Molecular Clouds

open access: yesInternational Scholarly Research Notices, Volume 2011, Issue 1, 2011., 2011
The transformation of the energy dependence of the cosmic ray proton flux in the keV to GeV region is investigated theoretically when penetrating inside molecular clouds (Av > 5 mag). The computations suggest that energy losses of the cosmic ray particles by interaction with the matter of the molecular cloud are principally caused by the inelastic ...
Ararat G. Yeghikyan   +2 more
wiley   +1 more source

Free Vibration of Sandwich Plates and Shells by Using Zig‐Zag Function

open access: yesShock and Vibration, Volume 16, Issue 5, Page 495-503, 2009., 2009
This paper analyses the free vibration response of sandwich curved and flat panels by introducing the zig‐zag function (—1)kζk (ZZF) in the displacement models of classical and higher order two‐dimensional shell theories. The main advantage of ZZF is the introduction of a discontinuity in the first derivative, zig‐zag effect, of the displacements ...
S. Brischetto, E. Carrera, L. Demasi
wiley   +1 more source

A novel analytical treatment for the Ambartsumian delay differential equation with a variable coefficient

open access: yesAIMS Mathematics
<p>The Ambartsumian delay differential equation with a variable coefficient is considered in this paper. An effective transformation is produced to convert the extended Ambartsumian equation to the pantograph model. Two kinds of analytical solutions are determined.
Rana M. S. Alyoubi   +3 more
openaire   +2 more sources

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