Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Luisa Maria Flores-Vélez"'
Autor:
Luisa Maria Flores-Vélez, Esmeralda Mendoza-Mendoza, Manuel Sánchez-Polo, Elizabeth Hermosillo-Arellano, Raúl Ocampo-Pérez, Ana María Sanchez-Polo
Publikováno v:
Journal of Water Process Engineering. 27:162-170
The aim of this work was to determine whether the effectiveness of hydroxyl and sulfate radicals to degrade carbamazepine (CBZ) in aqueous solution is a function of the radical generator system used. For this purpose, an in-depth analysis was conduct
Autor:
O. Domínguez, Luisa Maria Flores-Vélez, Felipe García-Hernández, Mónica Rodríguez-Pesina, Jorge García-Domínguez
Publikováno v:
Materials Sciences and Applications. :436-447
The thermal decomposition of ammonium perchlorate (AP) with Al and Zn metallic particles was studied at different heating rates in dry air atmosphere and the combustion behavior of AP/Al/Zn propellant was evaluated. The exothermic reaction kinetics w
Autor:
Luisa Maria Flores-Vélez, Irene Cano-Rodríguez, Rubén López-Doncel, Marcos Loredo-Tovías, Alfredo Aguillón-Robles, María Elena García-Arreola, Sonia Hortensia Soriano-Pérez
Publikováno v:
Environmental Earth Sciences. 77
In Mexico, many environmental problems are generated by large mining activities taking place in several mining districts. These mining activities produce great quantities of residues; large majorities of these have high sulfur content, which could ge
Publikováno v:
Ceramics International. 41:7903-7909
The work presents the kinetic effect of nanometric BaF 2 and CaF 2 particles on kaolinite to mullite transformation. The kinetics were evaluated from dilatometric data using two different non-isothermal procedures: conversional model-fitting method a
Autor:
Hector Valle, Roberto Torres, O. Domínguez, Luisa Maria Flores-Vélez, Martha Alejandra Lomeli, Gabriel García
Publikováno v:
Materials Sciences and Applications. :212-222
The present work describes the viability of a mortar binder based on two industrial by-products: poly(vinyl chloride) (PVC) particles from scrap and anhydrite (CaSO4) from fluorgypsum. Mortar composites were made incorporating different amounts of PV
Autor:
Pedro A. Alonso-Dávila, Georgina Cervantes-Cruz, Sonia Hortensia Soriano-Pérez, Luisa Maria Flores-Vélez, Sonia Arriaga
Publikováno v:
Annals of Microbiology. 62:313-317
The production of lactic acid by Lactobacillus helveticus from a cheese whey residue obtained from a dairy was investigated. Batch fermentation experiments showed that the optimal temperature to carry out the process was 42°C and the optimum pH was
Autor:
Guadalupe Sanchez-Loredo, O. Domínguez, Myriam Paredes, Roberto Martinez, Imelda Esparza, Adriana Gaona-Couto, Luisa Maria Flores-Vélez
Publikováno v:
Materials Sciences and Applications. :1584-1592
The present work reports the preliminary results about solid state reactions of Cr-ZnO solid solutions and ZnCr2O4 nanometric particles obtained with triethanolamine (TEA). Different compositions were prepared from 0.65 to 33.3 at % chromium, the las
Publikováno v:
Materials Characterization. 61:459-466
In this work, the sintering process of Portland cement was studied by combining thermomechanical analysis (TMA) and differential thermal analysis (DTA), together with X-ray diffraction (XRD) and scanning electron microscopy (SEM). Thermal analysis re
Autor:
Imelda Esparza, Luisa Maria Flores-Vélez, Martha Alejandra Lomeli, Roberto Torres, O. Domínguez
Publikováno v:
Journal of the American Ceramic Society. 92:1526-1533
The present work represents preliminary results concerning the effect of nanometric CaF 2 particles on the sintering behavior of kaolin. The nanoparticles were synthesized using aqueous solutions of CaCl 2 dissolved with an organic dispersant and HF.
Autor:
O. Reyes-salas, Margarita Gutiérrez-Ruiz, A. Baeza-reyes, Luisa Maria Flores-Vélez, S. Cram-heydrich
Publikováno v:
International Journal of Environmental Analytical Chemistry. 61:177-187
Polarography is very suitable to determine Cr(VI) in soil extracts. The best supporting electrolyte is NaOH 0.1 M. The detection limit (DL) of differential pulse polarography (DPP) for Cr(VI) was 1.59 × 10−5 M, and for Cr(III) was 2.85 × 10−5 M