Resultados de búsqueda - "time"

Avances retos y desafíos de la conciliación en el Perú por Canales Gonzales, Oscar

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Diseño y construcción de un reactor hibrido tipo batch para la producción de biocombustibles: biodiésel y bioetanol como caso de estudio. por Solís Ulloa, Juan Carlos

“…In order to scale this parameter to reactor level, the RMA varied from 3: 1 and 6: 1 (6 molecules of methanol per 1 of oil used) and the time of 15, 30, 45 and 60 minutes of process obtaining as a result that with a RMA of 6: 1 with a time of 60 minutes a conversion of 100 % was obtained, all these experiments were carried out at a temperature of 60 ◦ C and 400 rpm. …”
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Diseño y construcción de un reactor hibrido tipo batch para la producción de biocombustibles: biodiésel y bioetanol como caso de estudio. por Solís Ulloa, Juan Carlos

“…In order to scale this parameter to reactor level, the RMA varied from 3: 1 and 6: 1 (6 molecules of methanol per 1 of oil used) and the time of 15, 30, 45 and 60 minutes of process obtaining as a result that with a RMA of 6: 1 with a time of 60 minutes a conversion of 100 % was obtained, all these experiments were carried out at a temperature of 60 ◦ C and 400 rpm. …”
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Extracción y caracterización funcional de la fibra de hojas del Agave tequilana weber destinados para la inclusión en alimentos por Vilcanqui Pérez, Fulgencio

“…Abstract In this investigation paper, in a first stage were studied different methods of fiber extraction from Agave tequilana Weber leafs, whit the follow conditions for MI (reference), 15 min., 90°C y 1:2 w/v of relation M:H2O; for MII, whit steam pressure variables (kgf/cm2 ) whit three levels (0.5, 0.75 y 1.0), the time (min.) whit three levels (5, 10 y 15), and the relation M:H2O (w/v) whit two levels (1:2 y 1:3); and for the MIII, whit the variables in time (min.) whit three levels (5, 10 y 15), temperature (°C) three levels (70, 80 y 90) and the acid concentration (N de HCl) whit two levels (0.1 y 0.4). …”
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Extracción y caracterización funcional de la fibra de hojas del Agave tequilana weber destinados para la inclusión en alimentos por Vilcanqui Pérez, Fulgencio

“…Abstract In this investigation paper, in a first stage were studied different methods of fiber extraction from Agave tequilana Weber leafs, whit the follow conditions for MI (reference), 15 min., 90°C y 1:2 w/v of relation M:H2O; for MII, whit steam pressure variables (kgf/cm2 ) whit three levels (0.5, 0.75 y 1.0), the time (min.) whit three levels (5, 10 y 15), and the relation M:H2O (w/v) whit two levels (1:2 y 1:3); and for the MIII, whit the variables in time (min.) whit three levels (5, 10 y 15), temperature (°C) three levels (70, 80 y 90) and the acid concentration (N de HCl) whit two levels (0.1 y 0.4). …”
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Edgar Leal por Castañón Salas, Eliana Rocío

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Decision-making in the management of an incomplete urethral duplication in a young male por Treviño Rangel, Rogelio de Jesús, Bodden Mendoza, Byron Anthony, Cantú Salinas, N., García Rodríguez, María de los Ángeles

“…Conclusion: The lack of symptoms as well as the absence of significant clinical or functional repercussion in the patient led us to recommend therapeutic abstention for the time being.…”
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Solving the bilevel facility location problem under preferences by a stackelberg-evolutionary algorithm por Camacho Vallejo, José Fernando, Cordero Franco, Álvaro Eduardo, González Ramírez, Rosa G.

“…Numerical experimentation is performed in this study and the results are compared to benchmarks from the existing literature on the subject in order to emphasize the benefits of the proposed approach in terms of solution quality and estimation time.…”
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International migration and transitions to adulthood in Mexico por Avila Sánchez, María de Jesús, Jáuregui Díaz, José Alfredo, Pizarro Hernández, Karina

“…The results show that migration experience has an effect on the timing and intensity of the various transitions into adulthood. …”
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La evolución de los sistemas de costos en un entorno económico cambiante por Nakagoshi Enríquez, Karla Sayuri, Saldaña Navarro, Carlos

“…ABSTRACT The aim of this paper is to understand and analyze the origins and changes that the costing systems have experienced over time, since all organizations are forced to use them in their daily operations now a days in order to ensure a healthy performance and economic sustainability in the medium and long term supporting and streamlining an appropriate decision making that would bring a better return to their shareholders.…”
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Problema de ruteo con máxima cobertura y tiempo límite por Sotelo Benítez, Brenda Yaneth

“…Objetivos y método de estudio: En esta tesis se estudia el problema de ruteo de vehículos con máxima cobertura y tiempo límite, conocido como Time Constrained Maximal Covering Routing Problem (TCMCRP). …”
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Factors of positioning and accreditation of cultural agents in a local field of cultural production por Oliva Abarca, Jesús Eduardo

“…The research results demonstrated that the aspiring cultural agents must be capable of fulfilling different roles, being creators, as well as their own promoters and managers at the same time. Also, they must be involved in institutional events in order to be recognized by other cultural agents. …”
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Measuring the importance of oil-related revenues in total fiscal income for Mexico por Reyes Loya, Manuel Lorenzo, Blanco González, Lorenzo

“…Revenues from oil exports are an important part of government budgets in Mexico. A time-series analysis is conducted using monthly data from 1990 to 2005 examining three different specifications to determine how international oil price fluctuations and government income generated from oil exports influence fiscal policy in Mexico. …”
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Models and algorithms for transit network planning por Ibarra Rojas, Omar Jorge

“…We design a mixed integer linear programming formulation (MILP) for SBT considering constraints such as bounds of separation times between consecutive trips and departure time dispersion along the planning period. …”
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Solid-phase extraction of organic dyes on mixed-ligand Zr(IV) metal–organic framework por Kharisov, Boris, Kharissova, Oxana, Zhinzhilo, Vladimir, Bryantseva, Julia, Uflyand, Igor

“…The influence of various parameters (time, temperature, adsorbent dosage, pH, and coexisting ions) on adsorption characteristics was studied. …”
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A bi-objective model for the integrated frequency-timetabling problem por Avila Torres, Paulina Alejandra, Lopez Irarragorri, Fernando, Caballero Fernandez, Rafael

“…We take into consideration: multiple planning periods, synchronizations events (a synchronization occurs when two buses from different routes arrive to a node within a time window), fixed and variable operations costs and uncertain demand in each period.…”
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Measuring the importance of oil-related revenues in total fiscal income for Mexico por Reyes Loya, Manuel Lorenzo, Blanco González, Lorenzo

“…Revenues from oil exports are an important part of government budgets in Mexico. A time-series analysis is conducted using monthly data from 1990 to 2005 examining three different specifications to determine how international oil price fluctuations and government income generated from oil exports influence fiscal policy in Mexico. …”
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Gender differences in the returns to education in Mexico por Caamal Olvera, Cinthya Guadalupe

“…ABSTRACT The aim of this paper is to examine the trend over time of the rewards to education granted by the Mexican labor market accounting for gender differences. …”
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Problema de ruteo con máxima cobertura y tiempo límite por Sotelo Benítez, Brenda Yaneth

“…Objetivos y método de estudio: En esta tesis se estudia el problema de ruteo de vehículos con máxima cobertura y tiempo límite, conocido como Time Constrained Maximal Covering Routing Problem (TCMCRP). …”
Enlace del recurso

Models and algorithms for transit network planning por Ibarra Rojas, Omar Jorge

“…We design a mixed integer linear programming formulation (MILP) for SBT considering constraints such as bounds of separation times between consecutive trips and departure time dispersion along the planning period. …”
Enlace del recurso