Results 31 to 40 of about 58,646 (257)
, 2020 Este trabalho objetiva estudar a secagem de sólidos porosos e com forma arbitraria usando o método da análise concentrada. Um modelo matemático fenomenológico avançado baseado numa análise concentrada e sua solução exata são apresentados para predizer as
Elisiane Santana de Lima +7 more
semanticscholar +1 more source
Journal of Nanotechnology, Volume 2018, Issue 1, 2018., 2018 Dip‐pen nanolithography (DPN) and soft lithography are techniques suitable to modify the surface of biomaterials. Modified surfaces might play a role in modulating cells and reducing bacterial adhesion and biofilm formation. The main objective of this study was threefold: first, to create patterns at microscale on model surfaces using DPN; second, to ...
Santiago Arango-Santander +4 more
wiley +1 more source
The use of tubi fittili for vaulting roof in roman Hispania. Bibliographical review and status of the issue [PDF]
, 2019 El hallazgo de numerosas piezas cerámicas, conocidas como tubi fittili, en la villa romana de Salar nos ha permitido realizar un análisis de los casos conocidos en Hispania del uso de este tipo de material cerámico en la construcción de cubiertas ...
Moreno Alcaide, Manuel +2 more
core +4 more sources
Processo de secagem de materiais cerâmicos argilosos: uma revisão
, 2020 A secagem é uma operação de transferência de calor e massa envolvendo a remoção de umidade, sendo uma etapa importante e de elevado custo no processo de manufatura de diversos produtos.
Ricardo Soares Gomez +7 more
semanticscholar +1 more source
Journal of Nanomaterials, Volume 2016, Issue 1, 2016., 2016 Titanium dioxide with high specific surface area in the crystalline anatase phase is a promising material for environmental applications. In this work, TiO2 with good applicability for photocatalytic processes has been obtained using the low energy consumption synthesis based on oxidant peroxide method combined with microwave‐assisted low temperature ...
A. P. Garcia +8 more
wiley +1 more source
La Problemática de la Cerámica Ychsma: El Estado de la Situación y Algunos Elementos de Discusión [PDF]
, 2009 This paper tries to outline the problems related to the use of the Ychsma pottery, in particular with the defi nition of its stylistic unity, sequence, and distribution based in recent research at the Rímac and Lurín valleys and other essential ...
Vallejo Berríos, Francisco
core +2 more sources
Structural Analysis and Magnetic Properties of FeCo Alloys Obtained by Mechanical Alloying
Journal of Metallurgy, Volume 2016, Issue 1, 2016., 2016 A systematic study on the structural and magnetic properties of Fe100−xCox alloys (10 < x < 90, Δx = 10 in wt. percent) obtained by mechanical alloying is presented. Elemental powders of Fe and Co mixed in an adequate weight ratio were milled at room temperature in a shaker mixer mill using vials and balls of hardened steel as milling media with a ball
F. Sánchez-De Jesús +5 more
wiley +1 more source
Revista UIS Ingenierías, 2017 Se presentan los resultados de la caracterización físico-cerámica y estructural de muestras cerámicas de arcilla roja inmersas en soluciones de SiO2 – TiO2 – ZrO2 obtenidas por el método Sol-Gel utilizando tetraetil ortosilacato, tetrabutóxido de titanio
Jorge Sánchez Molina +3 more
doaj +1 more source
Synthesis and evaluation of nickel cobalt ferrite magnetic ceramics employing two alternative routes
Journal of Advanced Dielectrics, 2021 Ni0.5Co0.5Fe2O4 (NCF) powders were obtained employing two alternative synthesis routes: solid-state reaction and Pechini’s methods. The ceramic powders were pressed and sintered in the temperature range of 1100∘C to 1250∘C. Microstructural and structural
Javier E. Camargo +2 more
doaj +1 more source
Variabilidade estratigráfica e espacial dos contextos cerâmicos no Sítio Teotônio
, 2020 Na arqueologia Amazonica sao comuns sitios abrangendo varios hectares com sobreposicao de camadas formadas por depositos profundos e estratificados, com consequentes perturbacoes de depositos mais antigos por ocupacoes posteriores.
Thiago Kater +4 more
semanticscholar +1 more source