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Mostrando ítems 51-60 de 712
Intrinsic flavor violation for massive neutrinos
(Amer Physical SocCollege PkEUA, 2008)
Structural characteristics of silica sonogels prepared with different proportions of TEOS and TMOS
(Elsevier B.V., 2008-03-01)
Sonohydrolysis of mixtures of tetraethoxysilane (TEOS) and tetramethoxysilane (TMOS) with different TMOS/(TMOS + TEOS) molar ratio R was carried out to obtain similar to 2.0 x 10(-3) mol SiO2/cm(3) and similar to 86%-volume ...
Structural characteristics of silica sonogels prepared with different proportions of TEOS and TMOS
(Elsevier B.V., 2008-03-01)
Sonohydrolysis of mixtures of tetraethoxysilane (TEOS) and tetramethoxysilane (TMOS) with different TMOS/(TMOS + TEOS) molar ratio R was carried out to obtain similar to 2.0 x 10(-3) mol SiO2/cm(3) and similar to 86%-volume ...
On retrograde orbits, resonances and stability
(2016-10-01)
We start by reviewing our previous work on retrograde orbital configurations and on modeling and identifying retrograde resonances. Then, we present new results regarding the enhanced stability of retrograde configurations ...
Stellar mass buildup in galaxies in the first 1.5 gyr of the universe
(2014)
The buildup of galaxies is one of the most fundamental questions in modern cosmology. The study of this process in the first few Gyr of the Universe, starting from the first stars, isa challenging endeavor. In this thesis ...
Nanostructure and properties of ZnO films produced by the pyrosol process
(Blackwell Munksgaard, 2014)
Otimização do procedimento de análise isotópica no EA-IRMS, de Carbono e Nitrogênio de forma simultânea e isolada em amostras biológicas
(Universidade Estadual Paulista (Unesp), 2018-06-14)
table isotope analysis through the elemental analyzer - isotope ratio mass spectrometer (EA IRMS) is due to its ability to analyze the bio-elements (carbon, hydrogen (Deuterium),
nitrogen and sulfur). This tool is of ...
Quasi Satellite Orbits to observe a possible small moon of Pallas
(2020-02-01)
The purpose of this paper is to make a numerical search for natural orbits that can be used for a spacecraft to study a possible small moon of Pallas. There are many speculations about the existence of a small companion ...
Influence of porosity on high-velocity mass-asymmetric collisions
(OXFORD UNIV PRESS, 2020)
Using granular mechanics, we study the influence of porosity on the collisions of spherical granular aggregates with a mass ratio of around 60. At high filling factors, the projectile produces a crater on the target, similar ...