Resultados de búsqueda - ((((olot OR (plot OR (bloteees OR lots))) OR lot) OR (blote OR water)) OR (olotee OR sloste))*

High performance reinforced concrete, corrosion – resistant into aggressive industrial environments por Vázquez Rodríguez, Francisco Javier, De los Santos, Ulises, Mendoza Rangel, José Manuel, Gómez Rodríguez, Cristian, Arato Tovar, Ana María, A. Rodríguez, Edén

“…In this study, the effect of using internal curing on high performance concrete with low water/binder ratios was studied, implementing pumicite as internal curing agent, chemical additives and replacing Portland cement with pulverized fly ash. …”
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The physicochemical, antifungal and antioxidant properties of a mixed polyphenol based bioactive film por Aguirre Joya, Jorge A., Pastrana Castro, Lorenzo, Nieto Oropeza, Diana, Ventura Sobrevilla, Janeth, Rojas Molina, Romeo, Aguilar, Cristobal N.

“…The main antioxidants in Larrea tridentata polyphenols were identified by HPLC-MS. Water vapor permeability (WVP) was measured in the film. …”
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C-(N)-S-H and N-A-S-H gels: Compositions and solubility data at 25°C and 50°C por Gómez Zamorano, Lauren Yolanda, Balonis, Magdalena, Erdemli, Bartu, Neithalath, Narayanan, Sant, Gaurav

“…Abstract Calcium silicate hydrates containing sodium [C–(N)–S–H], and sodium aluminosilicate hydrates [N–A–S–H] are the dominant reaction products that are formed following reaction between a solid aluminosilicate precursor (eg, slags, fly ash, metakaolin) and an alkaline activation agent (eg NaOH) in the presence of water. To gain insights into the thermochemical properties of such compounds, C–(N)– S–H and N–A–S–H gels were synthesized with compositions: 0.8≤Ca/Si≤1.2 for the former, and 0.25≤Al/Si≤0.50 (atomic units) for the latter. …”
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New records of invasive tubeworms (Ficopomatus, Serpulidae) in Mexico por Tovar Hernández, María Ana, De León González, Jesús Ángel, Kupriyanova, Elena K.

“…In this study, Ficopomatus miamiensis and F. uschakovi are reported from brackish-water coastal localities in both Atlantic and Pacific sides of Mexico, including a Biosphere Reserve, estuaries, as well as shrimp and oyster farms. …”
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Predicting the phase diagram of two-dimensional colloidal systems with long-range interactions por Mejía Rosales, Sergio, Gil Villegas, Alejandro, Ivlev, Boris I., Ruiz García, Jaime

“…The phase diagram of a two-dimensional model system for colloidal particles at the air-water interface was determined using Monte Carlo computer simulations in the isothermic-isobaric ensemble. …”
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Review of Bacterial and Yeast Base Single Cell Protein Ingredients as Attractants and Fish Meal Replacements in Diets for Litopenaeus vannamei por Lawrence, Addison L., González-Félix, Mayra L., Perez-Velazquez, Martin, Yuan, Yuan, Watts, Stephen A.

“…Our FMR research used materials and methods developed by Texas A&M University System, University of Alabama at Birmingham and University of Sonora using laboratory facilities and clear water RAS which will be summarized in the presentation.…”
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Distribución de especies de plantas nativas y exóticas al lado de caminos a lo largo de un gradiente altitudinal en el noreste de México. por Sánchez Medrano, Fátima Zuleyma

“…Density data were collected and 13 environmental variables (% sand,% clay and% limo), percentage of stoniness, altitude, exposure, slope, percentage of bare soil, percentage of humus, pH, electrical conductivity and distance were evaluated to the road of each plot. The floristic composition of the sampling sites shows a diversity of 61 families, 163 genera, 178 native species and 17 correspond to exotic, having in this way an average of one exotic species at each sampling site. …”
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Modelo de crecimiento de diámetro normal para Pinus durangensis en Durango, México. por Colín, José Guadalupe

“…The results showed that the independent distance indices presented slightly better results in the prediction of growth of normal diameter for Pinus durangensis, of which the two best indices of competition were used, ICi12 (derived from the radius between the basal area of the tree Objective and the basal area of the plot) and ICi6 (which represents the cup competition factor (CCF), to be analyzed in four base models. …”
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Fertilización orgánica de tres variedades de trigo (Triticum aestivum L.), en dos fechas de siembra por Uresti Porras, José Gerardo

“…The variables evaluated were: plant height, weight of dry fodder, number of stems in linear meter, number of stems per plant, number of leaves per main stem, days to flowering, reaction to rust, days to physiological maturity, length of spikes, number of spikelet’s per spike, grain yield per plot, grain yield per hectare, weight of a thousand seeds, root length and root width. …”
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Distribución de especies de plantas nativas y exóticas al lado de caminos a lo largo de un gradiente altitudinal en el noreste de México. por Sánchez Medrano, Fátima Zuleyma

“…Density data were collected and 13 environmental variables (% sand,% clay and% limo), percentage of stoniness, altitude, exposure, slope, percentage of bare soil, percentage of humus, pH, electrical conductivity and distance were evaluated to the road of each plot. The floristic composition of the sampling sites shows a diversity of 61 families, 163 genera, 178 native species and 17 correspond to exotic, having in this way an average of one exotic species at each sampling site. …”
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Modelo de crecimiento de diámetro normal para Pinus durangensis en Durango, México. por Colín, José Guadalupe

“…The results showed that the independent distance indices presented slightly better results in the prediction of growth of normal diameter for Pinus durangensis, of which the two best indices of competition were used, ICi12 (derived from the radius between the basal area of the tree Objective and the basal area of the plot) and ICi6 (which represents the cup competition factor (CCF), to be analyzed in four base models. …”
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Fertilización orgánica de tres variedades de trigo (Triticum aestivum L.), en dos fechas de siembra por Uresti Porras, José Gerardo

“…The variables evaluated were: plant height, weight of dry fodder, number of stems in linear meter, number of stems per plant, number of leaves per main stem, days to flowering, reaction to rust, days to physiological maturity, length of spikes, number of spikelet’s per spike, grain yield per plot, grain yield per hectare, weight of a thousand seeds, root length and root width. …”
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Numerical study on the combustion process of a biogas spark-ignition engine por Carrera, José, Riesco, José, Martínez, Simón, Sánchez, Fausto, Gallegos, Armando

“…The combustion process of by biogas is characterized in terms tion of combustion, i. e., depending on the time elapsed while the reac- an of the dura tants (methane and oxygen) are transformed into products (mainly carbon dioxide and water). This study numerically evaluates the way in which the geometrical pa- rameters such as the compression ratio and operating parameters like engine speed, the excess air, the time of spark timing and carbon dioxide content of biogas affect the evolhution of the combustion process. …”
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Effect of minerals admixtures on high-performance concrete: C-S-H formation and physical-mechanical properties. por Rivera Torres, Jorge Maurilio

“…In this investigation, concretes with water/binder ratio of 0,45 and 0,35, where Portland cement is replaced by natural pozzolan or fly ash in dosage of 20% and 60% by mass of each material where used. …”
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Optimization in preparation process of V₂O₅ using symbolic regression α-β. por González Campos, Guillermo

“…This compound is widely used in catalysis and photocatalysis to solve environmental problems, such as water and air purification. The aim of creating a model was to obtain the best combination of preparation variables that result in a compound with the ideal properties, which promote a better performance in catalysis and photocatalysis. …”
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New Echinoid (Spatangoida: Toxasterinidae) from the Campanian of Coahuila, Northeastern Mexico por Silva Martínez, Luis Encarnación, Blanco Piñón, Alberto, De León González, Jesús Ángel, Rodríguez Vela, Hidalgo

“…The morphology of the specimens (test with a cordiform aboral region) as well as the sedimentary environment reported at the Austin Formation, suggests that this species represents an infaunal and detritivorous dweller living in a shallow water environment within the continental shelf. This is consistent with the more actual knowledge for other species of Diplodetus Keywords: Echinoids, Diplodetus, Upper Cretaceous, Campanian, Austin Formation, NE Mexico. …”
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Environmental assessment of an animal fat based biodiesel: Defining goal, scope and life cycle inventory por Vargas Ibáñez, Leidy T., Cano Gómez, José J., Zwolinski, Peggy, Evrard, Damien

“…Biodiesel is usually produced from vegetable oils; nevertheless, water supplies, fertilizers and large land areas are required for its produc- tion. …”
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Synthesis, Characterization, and Biological Activity Studies of Copper(II) Mixed Compound with Histamine and Nalidixic Acid por Bivián Castro, Egla Yareth, López, Mercedes G., Pedraza Reyes, Mario, Bernès, Sylvain, Mendoza Díaz, Guillermo

“…The crystal structure of [Cu(hsm)(nal)H2O]Cl·3H2O (chn) showed a pentacoordinated cooper(II) in a square pyramidal geometry surrounded by two N atoms from hsm, two O atoms from the quinolone, and one apical water oxygen. Alteration of bacterial DNA structure and/or associated functions in vivo by [Cu(hsm)(nal)H2O]Cl·3H2O was demonstrated by the induction of a recA-lacZ fusion integrated at the amyE locus of a recombinant Bacillus subtilis strain. …”
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Electrochemical Corrosion of Ferritic 409 and 439 Stainless Steels 409 and 439 in NaCl and H2SO4 solutions por Gaona Tiburcio, Citlalli, Estupiñan López, Francisco H., Zambrano Robledo, Patricia del Carmen, Cabral Miramontes, José Ángel, Barrios Durstewitz, C. P., Almeraya Calderón, Facundo

“…This study makes a comparative performance evaluation between ferritic steels 409 and 439, in different electrolytes that are important to automotive industry like 5% brine as simulating saline environment, 3.5% sulfuric acid (H2SO4) solution and water as the blank, with the purpose to identify their corrosion behavior. …”
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Efficiency Evaluation on the Influence of Washing Methods for Biodiesel Produced from High Free Fatty Acid Waste Vegetable Oils through Selected Quality Parameters por Ortiz Lechuga, Eugenia Guadalupe, Rodríguez Zúñiga, Mauro, Arévalo Niño, Katiushka

“…We selected seven quality tests: pH determination, cloud, pour and flash point, acid number (AN), water/sediments and soap content considering the most commonly failed checkpoints in biodiesel production. …”
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