Results 41 to 50 of about 1,232 (167)
ARQ, 2015 En este edificio para el Ministerio del Interior, la normativa definía que la fachada debía seguir los lineamientos estéticos y materiales del Barrio Cívico de Santiago. Tomando esa restricción como ventaja, los gruesos muros exteriores se transforman en
Teodoro Fernández +1 more
doaj +1 more source
Journal of Chemistry, Volume 2016, Issue 1, 2016., 2016 A green approach to produce the indolyl derivatives from four natural quinones (perezone, isoperezone, menadione, and plumbagin) was performed; in this regard, a comparative study was accomplished among the typical mantle heating and three nonconventional activating modes of reaction (microwave, near‐infrared, and high speed ball milling or ...
René Gerardo Escobedo-González +9 more
wiley +1 more source
Enfoques del análisis de envolvente al procesamiento de vibraciones para el diagnóstico de maquinarias [PDF]
Ingeniería Mecánica, 2010 El análisis de la envolvente de las vibraciones para detectar fallos complejos de maquinarias rotatorias, tales como fallos en cojinetes de rodamientos y engranajes, se ha venido imponiendo por su elevada efectividad y bajo costo computacional.Esta ...
Fidel Ernesto Hernández-Montero +1 more
doaj
REVISTA NODO, 2023 El libro El dominio de la envolvente. La transformación de la fachada profunda evidencia la exploración técnica y espacial desarrollada en torno a la conformación de la envolvente en edificios representativos de la arquitectura moderna colombiana; a partir de una búsqueda documental e histórica se presenta una línea de tiempo argumentativa, que cruza ...
openaire +1 more source
Journal of Nanomaterials, Volume 2016, Issue 1, 2016., 2016 Nanoparticles of Ag with different sizes and structures were obtained and studied. Two methods for reductions of Ag ions were employed, chemical reduction by sodium borohydride and ethylene glycol. Cuboctahedral and icosahedral structures were obtained. Molecular simulations were carried out in order to evaluate the reactivity of both structures.
Álvaro de Jesús Ruíz-Baltazar +4 more
wiley +1 more source
Potencial del techo verde, para ahorrar electricidad por aire acondicionado en la edificación.
Nova Scientia, 2015 Introducción: Tanto en México como en el mundo, más de tres cuartas partes de los insumos que se usan en la producción de electricidad provienen de fuentes no renovables, en una realidad donde los techos de las edificaciones son responsables de un ...
Ruber Trujillo Samayoa +2 more
doaj +1 more source
Analysis for the Sorption Kinetics of Ag Nanoparticles on Natural Clinoptilolite
Advances in Condensed Matter Physics, Volume 2015, Issue 1, 2015., 2015 The kinetic adsorption behavior of silver nanoparticles deposited on a natural zeolite from Oaxaca is presented. Theoretical models as Lagergren first‐order, pseudo‐second‐order, Elovich, and intraparticle diffusion were employed and compared with experimental data obtained by atomic absorption spectrophotometry technique. Correlation factors R2 of the
Alvaro Ruíz-Baltazar +6 more
wiley +1 more source
Synthesis and Characterization of Bifunctional α‐Fe2O3‐Ag Nanoparticles
Advances in Condensed Matter Physics, Volume 2015, Issue 1, 2015., 2015 The synthesis of α‐Fe2O3‐Ag bimetallic nanoparticles using a novel and simplified route is presented in this work. These hybrid nanoparticles were produced using a modification of the chemical reduction method by sodium borohydride (NaBH4). Fe(III) chloride hexahydrate (FeCl3·6H2O) and silver nitrate (AgNO3) as precursors were employed.
Alvaro Ruíz-Baltazar +7 more
wiley +1 more source
Journal of Nanomaterials, Volume 2015, Issue 1, 2015., 2015 Antimicrobial agents have been developed for drug‐resistance infections, which have been rapidly increasing; however, the control of involved microorganisms is still a challenge. In this work, SNP with bovine serum albumin (BSA) and chitosan (CS) coatings were prepared with an aqueous reduction method, characterized using dispersion light scattering ...
León Francisco Espinosa-Cristóbal +8 more
wiley +1 more source
A Novel Route for the Preparation of Gold Nanoparticles in Polycaprolactone Nanofibers
Journal of Nanomaterials, Volume 2015, Issue 1, 2015., 2015 A facile strategy for the fabrication of polycaprolactone (PCL) nanofibers containing gold nanoparticles (AuNPs) is proposed. The method is based on electrospinning nanosuspensions loaded with passivated Au nanoparticles. The optical property of gold nanoparticles synthesized was observed by UV‐visible absorption spectra.
Simón Yobanny Reyes-López +3 more
wiley +1 more source