Search Results - ((ene OR denso) OR (presente OR (compcppcppcppcppcppcppcppend OR compcppcppcppcppcppcppcppend)))

Electrochemical Evaluation of a Stainless Steel as Reinforcement in Sustainable Concrete Exposed to Chlorides by Santiago Hurtado, Griselda

“…For this research three concrete mixtures were produced, the first concrete was made with 100 % cement CPC 30R, the second mixture was considered sustainable concrete because using 80 % of cement CPC 30R and 20 % of silica fume and the third mixture was elaborated with 80 % of cement CPC 30R and 20 % of fly ash, these mixtures were designed according to the method ACI 211.1, in the specimens were embedded bars of AISI 304 stainless steel and AISI 1018 steel, the specimens were exposed in a solution at 3.5 % of NaCl, simulating a marine environment, for to evaluate the corrosion resistance were used electrochemical techniques of Half-Cell Potential, standard ASTM C-876-09 and the Linear Polarization Resistance, standard ASTM G59, results Ecorr and Icorr after 180 days of exposure show that, the best performance was presented concrete specimens produced with 20 % silica fume and reinforced with AISI 304 stainless steel, with corrosion potential (Ecorr) indicating a 10 % probability of corrosion and Icorr values that indicate a passivity level of corrosion.…”
Get full text

Angiosarcoma of the nasal cavity: a case report by Treviño González, José Luis, Santos Lartigue, Ramiro, González Andrade, Baltazar, Villagómez Ortiz, Vicente José, Villegas, Mario, Venegas García, Erving

“…Since 1977, only 16 cases have been reported. We present a 33-year-old male with spontaneous epistaxis that was refractory to cauterization. …”
Get full text

US Natural Gas Market Classification Using Pooled Regression by Kalashnikov, Vyacheslav V., Pérez Valdés, Gerardo A., Matis, Timothy I., Kalashnykova, Nataliya I.

“…Econometric studies about natural gas emerged as an important area of study since natural gas may now be sold and traded in a number of stock markets, each one responding to potentially different behavioral drives. In this work, we present a method to differentiate sets of time series based on a regression model relating price, consumption, supply, and other factors. …”
Get full text

Developing a mixed reality assistance system based on projection mapping technology for manual operations at assembly workstations. by Rodríguez Puebla, Leonardo Vinicio

“…In this scenario, virtual and augmented realities can offer significant advantages to support the human operator in manual operations. This research work presents the development of a mixed (virtual and augmented) reality assistance system that permits real-time support in manual operations. …”
Get full text

Recent Advances in Synthesis and Properties of Hybrid Halide Perovskites for Photovoltaics by Vidyasagar, C. C., Muñoz Flores, Blanca M., Jiménez Pérez, Víctor Manuel

“…Concerning the above facts, a simple low-cost model called ‘‘dispersed photovoltaic cells’’ is presented. Keywords Perovskites Solar cells Organic–inorganic perovskites Synthetic routes Fluorescence…”
Get full text

Uridine 5'‑diphospho‑glucronosyltrasferase: Its role in pharmacogenomics and human disease (Review) by Sánchez Domínguez, Celia Nohemí, Gallardo Blanco, Hugo Leonid, Salinas Santander, Mauricio Andrés, Ortiz López, Rocío

“…In the last five years, the study of the genetic variants of the UGTs at a molecular level has become important due to its association with several diseases and the ability to predict adverse events due to drug metabolism. In the present review, the structure and the prominent genetic variants of the UGT1A subfamily and their metabolic and clinical implications are described.…”
Get full text

A multi-step multi-objective generation expansion planning model-A case study in Mexico by Palacios, Rodrigo, Valdés, Eduardo, Batres, Rafael

“…Multi-objective models allow the analysis of the inter-relationships and trade-off solutions to be obtained. This paper presents a mixed integer linear model for multi-step multi-objective generation expansion planning (MMGEP). …”
Get full text

The age of the corporate State versus the informational and cognitive public domain by Muela Meza, Zapopan Martín

“…This article analyses concepts of the bourgeois State, capitalist corporations and the democratic public domain. The main thesis presented is that today nation states have fused deeply with corporations; both orders have become transformed into one indivisible entity. …”
Get full text

Expression of the HPV18/E6 oncoprotein induces DNA damage by Cortés Gutiérrez, Elva Irene, García Vielma, Catalina, Aguilar Lemarroy, Adriana, Vallejo Ruíz, Veronica, Piña Sánchez, Patricia, Zapata Benavides, Pablo, Gosálvez, Jaime

“…The variable levels of DNA breaks present were measured quantitatively using image analysis after whole-genome DNA hybridization. …”
Get full text

Compact Narrow Linewidth Actively Q-Switched Er–Yb Double-Clad Fiber Laser by Posada Ramírez, Berenice, Durán Sánchez, Manuel, Alvarez Tamayo, Ricardo Iván, Alaniz Baylón, Jared, Salceda Delgado, Guillermo, Kuzin, Evgeny A., Ibarra Escamilla, Baldemar

“…Abstract: Actively Q-switched laser operation of a narrow linewidth compact fiber laser based on an Er–Yb double-clad fiber is presented. The laser linewidth as a function of the repetition rate and the Q-switched pulses characteristics for different pump powers are experimentally analyzed. …”
Get full text

Electrochemical Reactivation of AISI 409 Ferritic Stainless Steel Sheet Welded by Laser Process with application in aeronautical by C. Ramírez-López, M

“…After the electrochemical test, the microstructure was analyzed by scanning electron microscopy (SEM) and the presence of elements with dispersive energy of X-rays (EDS), with the X-ray diffraction (XRD) technique they were identified present phases in different welds. Microhardness profiles were employed to evaluate the mechanical properties. …”
Get full text

Desarrollo de un relevador de sobrecorriente con capacidades dinámicas de ajuste by Conde Enríquez, Arturo

“…Se presentan los resultados obtenidos, tanto de simulaciones digitales como en pruebas de laboratorio. This paper presents a new logic of operation for time overcurrent relays. …”
Get full text

Taxonomía y fitogeografía de la familia Fagaceae (Magnoliophyta: fagales) en Tamaulipas y Nuevo León, México by García Morales, Leccinum Jesús

“…Un análisis particular de conservación de los encinos presentes en los Sistemas de Áreas Protegidas de cada estado fue hecho para establecer el estado de conservación del género en el área de estudio…”
Get full text

Sensibilización a animales donméticos en estudiantes de veterinaria by Román Cañamar, David Eugenio

“…Las enfermedades alérgicas ocupacionales se caracterizan por presentar síntomas al existir sensibilización a alérgenos presentes en el ambiente de trabajo, Los profesionales en medicina veterinaria, quienes desde etapas iniciales del entrenamiento profesional tienen exposición constante a diferentes animales y a sus diversos alérgenos derivados de los mismos. …”
Get full text

Biodegradable nanoparticles loaded with tetrameric melittin: preparation and membrane disruption evaluation by González Horta, Azucena C., Matamoros Acosta, Arely, Chávez Montes, Abelardo, Castro Ríos, Rocío, Lara Arias, Jorge

“…However, the therapeutic application of melittin is limited due to its main side effect, hemolysis, which is especially pronounced following intravenous administration. In the present study, we formulated tetrameric melittin-carrying poly-D,L-lactic-co-glycolic acid nanoparticles (PLGANPs) and analyzed the lytic activity of this system on liposomes that resembles breast cancer cells. …”
Get full text

Modelación matemática de la adsorción de Cu (II) Y Pb (II) con residuos sólidos de café modificados químicamente. by Botello González, Jesús

“…Además, la cuantificación de iones intercambiables confirmó que el principal mecanismo de adsorción es el intercambio iónico de iones metálicos con los protones presentes en la superficie del adsorbente.…”
Get full text

Evaluación in vitro antimicrobiana y coagulante de los extractos etanólicos de Heterotheca inuloides, Mentha piperita y Amphyptergium adstringens como alternativa terapéutica en Od... by Rubio Garza, María Fernanda

“…Las plantas representan una alternativa terapéutica natural muy valiosa en medicina y odontología debido a la gran cantidad de compuestos químicos presentes, lo cual les otorga potencial para poder ser utilizados como agentes antimicrobianos, coagulantes, anticoagulantes, cicatrizantes, antiinflamatorios, etc., brindando una oportunidad de aplicar estas propiedades en el control de enfermedades bucodentales con un menor riesgo de efectos adversos y a un menor costo.…”
Get full text

Splitting test experimental dataset of hollow concrete blocks by Alvarez Pérez, José, Mesa Lavista, Milena, Chávez Gómez, Jorge Humberto, Cavazos de Lira, Diego, Terán Torres, Bernardo Tadeo

“…The data was collected with a servo-hydraulic machine. The data is presented in tables and can be used by material researchers, as well as in numerical modeling…”
Get full text

Optimization of the Distribution Network Using an Emerging Technology by Ulin Hernández, Emanuel Jesús, Saucedo Martínez, Jania Astrid, Marmolejo Saucedo, José Antonio

“…The incursion is of an emerging technology, in this case the use of drones, for a new delivery system in order to improve a university distribution system, in the view of the fact that in recent years, companies have focused on the use of logistics operations for the improvement of productivity and delivery times. The study presents a mathematical model, based on the Problem of the Traveling Salesman (TSP) for the planning of a route to increase the efficiency in the distribution process at Ciudad Universitaria, an Universidad Autónoma de Nuevo León (UANL) campus that contemplates the use of the emerging technology of UAVs, and the traditional method of using trucks. …”
Get full text

Uso de acuerdos comerciales: Caso Nuevo León (México) by Lechuga Cardozo, Jorge Isaac, Leyva Cordero, Oswaldo, Pamanes Durán, Alejandro Raisuli

“…An instrument was designed and applied to a sample of nine experts in International Business. This questionnaire presents five, three and two items for the variables export diversification, trade agreements and trade promotion mechanisms respectively. …”
Get full text