Search Results - "characterization"

Cómo seguir el hilo de la razón...: México y los mexicanos según Lesley B. Simpson by Espinosa Martínez, Edgar Iván

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Polyphenolic content, in vitro antioxidant activity and chemical composition of extract from Nephelium lappaceum L. (Mexican rambutan) husk by Hernández, Cristian, Ascacio Valdés, Juan, De la Garza, Heliodoro, Wong Paz, Jorge, Aguilar González, Cristóbal Noé, Martínez Ávila, Guillermo Cristian Guadalupe, Castro López, Cecilia, Aguilera Carbó, Antonio Francisco

“…Objective: To determinate the recovery of total polyphenolic compounds content, in vitro antioxidant activity and HPLC/ESI/MS characterization of extract from Nephelium lappaceum L. …”
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Flow cytometry data analysis of CD34+/CD133+ stem cells in bone marrow and peripheral blood and T, B, and NK cells after hematopoietic grafting by Jaime Pérez, José Carlos, Villarreal Villarreal, César Daniel, Vázquez Garza, Eduardo, Méndez Ramírez, Nereida, Salazar Riojas, María del Rosario, Gómez Almaguer, David

“…Also shown is the flow cytometry analysis of mononuclear cell and lymphocyte populations in the peripheral blood of both types of recipients, as well as the characterization of immune cells, including T lymphocyte antigenic make up markers CD3, CD4 and CD8, B lymphocytes and NK cells, including total NK, bright and dim subtypes in the peripheral blood of both types of recipients. …”
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Morphological and Genetic Variation in Mexican Wild Populations ofTamarixia radiata(Hymenoptera: Eulophidae) by Peña Carrillo, Kenzy Ivveth, González Hernández, Alejandro, López Arroyo, J. Isabel, Mercado Hernández, Roberto, Favela Lara, Susana

“…In this work it was investigated the mechanical behavior in helical actuators produced from Ti-Ni alloy commercial wires. Different characterization techniques were employ for analyzing the samples as: differential scanning calorimeter (DSC), scanning electron microscopy (SEM), optical microscopy (OM) and a non-commercial apparatus developed to apply an external traction stress in helical actuators during thermal cycles.…”
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Thermomechanical Analysis on Ti-Ni Shape Memory Helical Springs Under Cyclic Tensile Loads by Oliveira, Carlos Augusto do Nascimento, González, Cezar Henrique, Olimpio Filho, Oscar, Silva, Niédson José da, Guimarães, Pablo Batista, Nuñez Mendoza, Esaú, López Cuéllar, Enrique Manuel

“…In this work it was investigated the mechanical behavior in helical actuators produced from Ti-Ni alloy commercial wires. Different characterization techniques were employ for analyzing the samples as: differential scanning calorimeter (DSC), scanning electron microscopy (SEM), optical microscopy (OM) and a non-commercial apparatus developed to apply an external traction stress in helical actuators during thermal cycles.…”
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Antimycobacterial Activity of Constituents from Foeniculum vulgare Var. Dulce Grown in Mexico by Esquivel Ferriño, Patricia Cristina, Favela Hernández, Juan Manuel de Jesús, Garza González, Elvira, Waksman Minsky, Noemí Herminia, Ríos, María Yolanda, Camacho Corona, María del Rayo

“…Bioassay guided fractionation of an antimycobacterial extract of Foeniculum vulgare var dulce (Apiaceae) led to the isolation and characterization of 5-hydroxyfuranocoumarin. The chemical structure of this compound was elucidated by 1 H and 13C (1D and 2D) Nuclear Magnetic Resonance (NMR) spectroscopy. …”
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Occurrence and quantitative microbial risk assessment of Cryptosporidium and Giardia in soil and air samples by Balderrama Carmona, Ana Paola, Gortáres Moroyoqui, Pablo, Alvarez Valencia, Luis Humberto, Castro Espinoza, Luciano, Mondaca Fernández, Iram, Balderas Cortés, José de Jesús, Chaidez Quiroz, Cristóbal, Meza Montenegro, María Mercedes

“…Methods: To assess the risk of infection, Quantitative Microbial Risk Assessment (QMRA) was employed, with the following steps: (1) hazard identification, (2) hazard exposure, (3) dose–response, and (4) risk characterization. Results: Cryptosporidium oocysts and Giardia cysts were observed in 52% and 57%, respectively, of total soil samples (n = 21), and in 60% and 80%, respectively, of air samples (n = 12). …”
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Spatial Microstructural Ordering of Expansive Clay Minerals by López Lara, T., Hernández Zaragoza, J. B., Carreón Freyre, D., Cerca, M., Rojas González, E., Minor Franco, A. G., Martínez Barrera, G., Salgado Delgado, R.

“…Sothis work studies the spatial microstructural ordering and mineralogy of different expanding clays in order to correlate them with some of their geotechnical properties (plasticity, classification, andexpansion).TheclaymicrostructurewasobtainedusingX-ray diffraction, and sweeping electronic microscopy. Physical characterization includes pH analysis. Clays with greater swelling (12.1–14.6% expansion) present greater agglomeration (gathering) (20–50 microns) in a flocculated structure that mainly contained sodic montmorillonite with 14–22 ˚A openings and 8.28 average pH, which indicates high electron concentrations with border-face interactions. …”
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Removal of Tetracycline Pollutants by Adsorption and Magnetic Separation Using Reduced Graphene Oxide Decorated with α-Fe2O3 Nanoparticles by Huizar Félix, Adriana Magdalena, Aguilar Flores, Celia, Martínez de la Cruz, Azael, Barandiarán, José Miguel, Sepúlveda Guzmán, Selene, Cruz Silva, Rodolfo

“…The adsorption kinetics of this adsorbent was characterized and found to fit the pseudo-second-order model. …”
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Conversion of banana peel into diverse valuable metabolites using an autochthonous Rhodotorula mucilaginosa strain by Torres Álvarez, Dagoberto, León Buitimea, Angel, Albalate Ramírez, Alonso, Rivas García, Pasiano, Hernández Núñez, Emanuel, Morones Ramírez, José Rubén

“…The highest yield of EPS was observed in 50 g/L of BPE, a two-fold increase (160.1 mg/g) compared to the YM broth (76.3 mg/g). The fatty acid characterization showed that 100 g/L of BPE produced 400% more unsaturated compounds (e.g., oleic and ricinoleic acid) than the YM broth. …”
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Chemical Composition and Biological Activities of Oregano Essential Oil and Its Fractions Obtained by Vacuum Distillation by Rostro Alanís, Magdalena de Jesús, Báez González, Juan Gabriel, Torres Álvarez, Cynthia, Parra Saldívar, Roberto, Rodríguez Rodríguez, José, Castillo, Sandra

“…Aiming to achieve the best use of this resource, the present study focuses on the characterization of separated fractions of Ooil by fractional vacuum distillation at low pressure. …”
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Effect of sealing treatment on the corrosion behavior of anodized AA2099 aluminum-lithium alloy by Samaniego Gámez, Pedro Oliver, Almeraya Calderón, Facundo, Martin Díaz, Ulises, Ress, Jacob, Gaona Tiburcio, Citlalli, Silva Vidaurri, Luis Gerardo, Cabral Miramontes, José Ángel, Bastidas, José María, Chacón Nava, José G., Bastidas, David M.

“…The surface morphology of the anodized film was characterized by scanning electron microscopy (SEM), the electrochemical corrosion behavior was studied using electrochemical impedance (EIS), and finally characterization of the surface chemical composition was revealed by X-ray photoelectron spectroscopy (XPS). …”
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Corrosion Behavior of Passivated Martensitic and Semi-Austenitic Precipitation Hardening Stainless Steel by Almeraya Calderón, Facundo, Samaniego Gámez, Pedro Oliver, Maldonado Bandala, Erick, Nieves Mendoza, Demetrio, Olguín Coca, Javier, Jáquez Muñoz, Jesús Manuel, Cabral Miramontes, José Ángel, Flores de los Ríos, Juan Pablo, Bautista Margulis, Raúl German, Gaona Tiburcio, Citlalli

“…The microstructural analysis was performed by optical microscopy and scanning electron microscopy (SEM), while the passivated layer was characterized by X-ray photoelectron spectroscopy (XPS). …”
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Corrosion behavior of AA2055 aluminum-lithium alloys anodized in the presence of sulfuric acid solution by Samaniego Gámez, Pedro Oliver, Almeraya Calderón, Facundo, Maldonado Bandala, Erick, Cabral Miramontes, José Ángel, Nieves Mendoza, Demetrio, Olguín Coca, Javier, López León, Luis Daimir, Silva Vidaurri, Luis Gerardo, Zambrano Robledo, Patricia del Carmen, Gaona Tiburcio, Citlalli

“…Scanning electron microscopy and X-ray photoelectron spectroscopy were employed to characterization of the anodizing layer, determinate morphology and thickness of coatings. …”
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Corrosion of Titanium Alloys Anodized Using Electrochemical Techniques by Jáquez Muñoz, Jesús Manuel, Gaona Tiburcio, Citlalli, Méndez Ramírez, Ce Tochtli, Baltazar Zamora, Miguel Ángel, Estupiñan López, Francisco H., Bautista Margulis, Raúl German, Cuevas Rodríguez, Josefina, Flores de los Ríos, Juan Pablo, Almeraya Calderón, Facundo

“…The anodization’s electrochemical characterization was achieved in NaCl and H2SO4 at 3.5% wt. electrolytes. …”
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Mg-Ca0.3 Electrochemical Activity Exposed to Hank’s Physiological Solution and Properties of Ag-Nano-Particles Deposits by González Murguía, José Luis, Veleva, Lucien, Rodríguez Gattorno, Geonel, Figueroa Torres, Mayra Zyzlila, Feliu, Sebastián

“…A combination of immersion test, electrochemical techniques (PDP, EIS, EN), and surface characterization methods (SEM-EDS, XRD, and XPS) were carried out. …”
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On the structure and properties of silver nanoparticles by Gracia Pinilla, Miguel Ángel, Pérez Tijerina, Eduardo, Antúnez García, Joel, Fernández Navarro, Carlos Javier, Tlahuice Flores, Alfredo, Mejía Rosales, Sergio, Montejano Carrizales, Juan Martín, Yacamán, Miguel José

“…We performed morphological and optical characterization of the nanoparticles (NPs) using atomic force microscopy (AFM), mass spectroscopy (MS), and UV-visible spectroscopy. …”
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Thin films of Cu, In and Sb chalcogenides as photovoltaic absorbers by Ornelas Acosta, Raúl Ernesto

“…This thesis work focuses on the preparation and characterization of In6Se7, CuSbS2 and CuSb(S1-xSex)2 thin films for their application as absorber material in photovoltaic structures using two stage process by the combination of chemical bath deposition and thermal evaporation.…”
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Diseño y construcción de un dispositivo para evaluar la efectividad del proceso de lavado de muestras textiles by Delgado Banda, Ricardo

“…Abstract: This work shows the characterization of the effective- ness of two developed detergents to remove organic soil, inorganic and mixing both in textiles. …”
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Thin films of Cu, In and Sb chalcogenides as photovoltaic absorbers by Ornelas Acosta, Raúl Ernesto

“…This thesis work focuses on the preparation and characterization of In6Se7, CuSbS2 and CuSb(S1-xSex)2 thin films for their application as absorber material in photovoltaic structures using two stage process by the combination of chemical bath deposition and thermal evaporation.…”
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