Holos, 2020 Neste artigo, com base em materiais acessíveis, discutiremos sobre o Sol, o efeito estufa e o aquecimento global. Foram realizadas oficinas pedagógicas para 225 alunos no Museu de Ciências Espaço Ciência, em Olinda - PE, com o objetivo de medir a ...
Micaías Andrade Rodrigues
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Experimental Stability and Thermal Characteristics Enhancement Analysis of Water Based Boehmite Nano fluid [PDF]
Engineering and Technology Journal, 2015 In this work attempt was made to formulate water based boehmite (AlOOH) nanofluid in one and two steps methods. Boehmite is the first born alumina phase as prepared by sol gel route using aluminum isopropoxide precursor, exhibit a combination of ...
Mohammed Hussein J. Al –Atia +1 more
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Solar imaging capabilities of the Brazilian decimetric array
Geofísica Internacional, 2000 En colaboración con la Universidad Federal de São Carlos, el Instituto Nacional de Pesquisas y la Universidad Federal de Santa María se hacen esfuerzos para desarrollar una tomograrfía solar utilizando imágenes solares obtenidas en varias longitudes de ...
E. Lüdke +10 more
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Coating of Carbon Fibers With Calcium Phosphate by Sol- Gel Method [PDF]
Engineering and Technology Journal, 2014 Sol-gel technique has been used to coat carbon fibers with calcium phosphate to improve the esthetic of black carbon fibers as it's biocompatible. To improve bonding between carbon fibers and prepared calcium phosphate powders, the surface of carbon ...
Sewench N. Rafeeq +2 more
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Synthesis of B4C/YTZP Composite Powder and Studying Effect of its Addition on Mechanical Properties of B4C [PDF]
Engineering and Technology Journal, 2014 In this research B4C powder have been coated with yttria stabilized tetragonal zirconia polycrystalline (YTZP) (ZrO2 – 6wt% Y2O3) by using sol-gel method in order to obtain on composite powder (B4C core/ YTZP shell, 1/1 wt%).
Fadhil A. Chyad +2 more
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Synthesis and Studying Dielectric Properties of Mixed Nanoferrites [PDF]
Engineering and Technology Journal, 2015 Based on a low temperature route (sol-gel autocombustion) a nano-ferrite CoFe2O4and Li0.5Fe2.5O4 and different percentages of cobalt-ferrite are synthesized.
Zainab I. Dhary +2 more
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Comprehensive Electrochemical Evaluation of Protective Coatings Properties by Sol-Gel Route for Stainless Steel Corrosion [PDF]
Engineering and Technology Journal, 2013 Sol gel nano ceramic coatings have been applied on stainless steel to develop their biological characteristics and increase resistance to corrosion and wear.
Mohammed Hussein J. Al Atia
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Un nouveau test d’évaluation de la biodégradabilité dans le sol -- Travaux de normalisation en cours
Oléagineux, Corps gras, Lipides, 2003 Biodégradabilité primaire (disparition d’un composé parent), biodégradabilité ultime (stade terminal de la transformation du composé), écotoxicité, bio-accumulation autant d’outils à notre disposition pour évaluer l’impact environnemental des composés ...
Cecutti Christine
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Synthesis of Magnetic MWCNTs Nanohybrids and Application in Remediation of Chromium Ions in Refinery Wastewater [PDF]
Engineering and Technology Journal, 2017 This study presents the preparation of Magnetic - Multiwall Carbon Nanotubes (M-MWCNTs) as adsorbents, MWCNTs/Fe3O4 nanocomposite, in which multiwall carbon nanotubes were coated to magnetic Fe3O4 particles by simplistic sol-gel techniques.
A. M. ALI
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Dynamics of Wetting Fronts in Porous Media
, 1998 We propose a new phenomenological approach for describing the dynamics of wetting front propagation in porous media. Unlike traditional models, the proposed approach is based on dynamic nature of the relation between capillary pressure and medium ...
A. E. Scheidegger +31 more
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