Results 11 to 20 of about 538,554 (203)
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
doaj +1 more source
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
doaj +1 more source
Natures Sciences Sociétés, 2023 Dans le contexte du développement des sciences et recherches participatives (SRP), de plus en plus d’initiatives sur les sols ont été engagées ces dernières années.
Gascuel Chantal +11 more
doaj +1 more source
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
doaj +1 more source
A Formal Definition of SOL [PDF]
IEEE Transactions on Electronic Computers, 1964 This paper gives a formal definition of SOL, a general-purpose algorithmic language useful for describing and simulating complex systems. SOL is described using meta-linguistic formulas as used in the definition of ALGOL 60. The principal differences between SOL and problem-oriented languages such as ALGOL or FORTRAN is that SOL includes capabilities ...
Knuth, D. E., McNeley, J. L.
openaire +4 more sources
Effect of calcium source on structure and properties of sol–gel derived bioactive glasses [PDF]
, 2012 The aim was to determine the most effective calcium precursor for synthesis of sol–gel hybrids and for improving homogeneity of sol–gel bioactive glasses. Sol–gel derived bioactive calcium silicate glasses are one of the most promising materials for bone
Jones, Julian R. +13 more
core +1 more source
Preparation of sub-micron PZT particles with the sol-gel technique [PDF]
, 2006 This paper describes the production of Pb1.0Zr0.9Ti0.1 ceramic powder, by using metal organic precursors as starting materials. In this study polyvinylpyrrolidone, PVP, was used to create a PZT–PVP sol and then also added as a secondary stage to control ...
Alcock, Jeffrey R. +2 more
core +1 more source
Films based on bacteriorhodopsin in sol-gel matrices [PDF]
, 2005 The bacteriorhodopsin film in gelatin matrixes which are used as sensitive elements of integrated optic and fibre-optic sensors of various vapor and gases components will not be able to carry out the chemical control of aqueous solutions. In the given
Trikur, I. I. +13 more
core +1 more source
Gestão escolar e formação docente para a inclusão
Cadernos CajuínaEste artigo discute a importância da relação entre gestão escolar e formação docente no contexto da educação inclusiva, apontando desafios e lacunas ainda presentes no cotidiano das escolas.
Adeneide Monteiro Guimarães +7 more
doaj +1 more source
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
doaj +1 more source