Zobrazeno 1 - 10
of 60
pro vyhledávání: '"I. Espitia"'
Publikováno v:
Dyna, Vol 71, Iss 143, Pp 45-54 (2004)
Actualmente, la industria cerámica y del vidrio requiere materias primas feldespáticas de alta calidad. Sólo en algunas aplicaciones, los feldespatos pueden ser utilizados tal como se extraen de la mina, sin ninguna clase de beneficio. Sin embar
Externí odkaz:
https://doaj.org/article/7c2ef52362cc4546bdcc3505d309afd6
Autor:
Cristina I. Canché Chay, Rocío Gómez Cansino, Clara I. Espitia Pinzón, Rubén O. Torres-Ochoa, Roberto Martínez
Publikováno v:
Marine Drugs, Vol 12, Iss 4, Pp 1757-1772 (2014)
Caulerpin (1a), a bis-indole alkaloid from the marine algal Caulerpa sp., was synthesized in three reaction steps with an overall yield of 11%. The caulerpin analogues (1b–1g) were prepared using the same synthetic pathway with overall yields betwe
Externí odkaz:
https://doaj.org/article/766c9b037f3746499fba44330571438f
Autor:
Herbert I. Espitia, Julián Trujillo
Publikováno v:
Biomédica: revista del Instituto Nacional de Salud, Vol 18, Iss 1, Pp 37-44 (1998)
En el departamento de Guainía, Colombia, se realizó un estudio tipo encuesta de prevalencia de corte en siete comunidades del río Atabapo, donde se calculó una muestra poblacional de 181 personas mayores de 10 años que se debían examinar, toman
Externí odkaz:
https://doaj.org/article/403cadfc16994104855ee99ff9699909
Publikováno v:
Materials Science and Engineering: B. 206:30-38
In the present work, 45S5 bioglass coatings were deposited on the Ti6Al4 V alloy substrate through the cathodic colloidal electrophoretic deposition process (CEDP) proposed in this work. The coatings were thermally treated at temperatures of 500, 600
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57a517c3e4b259a483eedc4fcee5a1f6
https://doi.org/10.1016/j.mseb.2015.09.003
https://doi.org/10.1016/j.mseb.2015.09.003
Autor:
J. Faure, M. E. Contreras-García, M. A. Espinosa-Medina, M. I. Espitia-Cabrera, M. M. Machado-López
Publikováno v:
Journal of The Electrochemical Society. 162:D3090-D3100
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a21a1dbf46f9be0253d14d03ef1beff
https://doi.org/10.1149/2.0231511jes
https://doi.org/10.1149/2.0231511jes
Autor:
M.H. Bocanegra-Bernal, E. Torres-Moye, A. Reyes-Rojas, I. Espitia-Cabrera, J. Alvarado-Flores
Publikováno v:
Journal of Materials Science. 47:8118-8127
La0.7Sr0.3Cr0.4Mn0.6O3−δ (perovskite-type) nanocomposites impregnated with XCu0.75Ni0.25 have been synthesized by sol–gel method. Crystal structure of LSCM–Cu0.75Ni0.25 composites were refined by the Rietveld method. Crystal symmetry of CuO an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d0147f64c29cebd5688931caa85a076
https://doi.org/10.1007/s10853-012-6707-5
https://doi.org/10.1007/s10853-012-6707-5
Publikováno v:
International Journal of Photoenergy. 2012:1-10
The effect of the addition of zirconia in the photocatalytic behaviour of titania is analysed. In order to increase the ways for reagent and product diffusion in the material, a sol-gel hydrothermal synthesis route using Tween-20 as a directing agent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::270576805a7b5631902ebacbdb0b863e
https://doi.org/10.1155/2012/609561
https://doi.org/10.1155/2012/609561
Autor:
A. Reyes-Rojas, E. Torres-Moye, M. A. Esneider-Alcalá, Hilda E. Esparza-Ponce, I. Espitia-Cabrera, J. Alvarado-Flores
Publikováno v:
Materials Chemistry and Physics. 126:773-779
This work is focused on nanocrystalline solid oxide fuel cell synthesis and characterization (SOFC) anodes of La 0.7 Sr 0.3 Cr 0.4 Mn 0.6 O 3− δ (perovskite-type) with Nickel. Perovskite-type oxide chemical reactivity, nucleation kinetics and phas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd48cedce704ff0d3073ec620bf3b9bc
https://doi.org/10.1016/j.matchemphys.2010.12.045
https://doi.org/10.1016/j.matchemphys.2010.12.045
Autor:
M.L. García-Benjume, E. Barajas-Ledesma, Javad Mostaghimi, M.E. Contreras-García, F.J. Espinoza-Beltrán, I. Espitia-Cabrera, Alejandro Bravo-Patiño
Publikováno v:
Materials Science and Engineering: B. 174:74-79
Al 2 O 3 -doped TiO 2 thin films were prepared by combining electrophoretic deposition (EPD) with sputtering. A Corning* glass was used as a substrate, in which a titanium film was deposited by sputtering. Then, a precursor sol was prepared with Ti(n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb0e0b739fcac503defd1bc1f4f089c5
https://doi.org/10.1016/j.mseb.2010.03.024
https://doi.org/10.1016/j.mseb.2010.03.024
Autor:
M.L. García-Benjume, I. Espitia-Cabrera, M.E. Contreras-García, Edgar Barajas-Ledesma, Alejandro Bravo-Patiño
Publikováno v:
Journal of Nano Research. 9:17-24
The ability of nanostructured TiO2 in anatase phase to eliminate Escherichia coli (E. coli) by UV light irradiation was tested using titania films supported on glass substrates. The films were obtained by electrophoretic deposition of titania sol on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78ba0ba4c37c831e1b6e44c553c6f8a8
https://doi.org/10.4028/www.scientific.net/jnanor.9.17
https://doi.org/10.4028/www.scientific.net/jnanor.9.17