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Now showing items 12381-12390 of 12422
Optimización lineal entera mixta aplicada a problemas de planificación estratégica en electricidad
(Universidad de Chile, 2015)
este objetivos son la empresa
modelo (caso chileno) y la evaluación relativa del desempeño (caso inglés). Los precios de
distribución, por tratarse de una actividad regulada, deben permitir cubrir los costos totales
de la actividad, que básicamente son...
consumos residenciales. La adquisición del bien la hacen mediante contratos bilaterales con los productores, directamente en los mercados de energía o comprando a 5 empresas de distribución o a comercializadores. Por el tamaño de sus consumos, pueden...
consumos residenciales. La adquisición del bien la hacen mediante contratos bilaterales con los productores, directamente en los mercados de energía o comprando a 5 empresas de distribución o a comercializadores. Por el tamaño de sus consumos, pueden...
Rediseño de un sistema de cupones para un supermercado mayorista mexicano
(Universidad de Chile, 2014)
regresiones lineales acompañadas con el estimador de Diferencia en Diferencias. Así se determina el impacto de una intervención aislando efectos externos que afecten la variable en estudio, como lo son tendencias y estacionalidades. Para su desarrollo se hace...
Sendero de Lava y Agua
(Universidad de Chile, 2021)
Volcánico Austral. Para ello se analizó territorialmente la península que lo contiene, a través de la construcción de un mosaico ecológico, concluyendo que existe una triangulación entre estos tres actores, a saber, Volcán, Alerce y Alerceros, los que se...
Recomendaciones de uso para estanques de acero inoxidable en la industria vitivinicola y generación de anual buenas prácticas
(Universidad de Chile, 2012)
realizó un análisis lineal con el fin de establecer una correlación entre el comportamiento en un grupo de estanques y los esfuerzos generados en ellos a partir del sismo. Los resultados obtenidos muestran la alta sobre solicitación y dan luces sobre las...
Evaluación económica de reprocesamiento de relaves en tranques abandonados incorporando incertidumbre de precios de commodities y valor en riesgo
(Universidad de Chile, 2021)
. Estas cargas ambientales y sociales, ante la falta de ubicar a sus dueños, pasan a ser una responsabilidad del Estado. Una forma de resolver esta situación es otorgar concesiones de explotación a agentes externos para realizar un reprocesamiento de los...
Olive oil and the millennial generation in Chile. What do these consumers consider when buying this product?
(Universidad Nacional de Cuyo, 2020)
decisión de compra del consumidor de aceite de oliva perteneciente a "Millennials" en la
Región Metropolitana, Chile. El método incluye la recolección de datos de 408 personas y
una combinación de análisis factorial y de conglomerados. Los resultados...
. 2009. Oportunidades comerciales para el aceite de oliva de Castilla-La Mancha. [en línea]. Universidad de Castilla La Mancha. p. 10. 5. Cardona, J.; Paredes, M. 2014. Segmentación de mercados. Revista Académica Facultad de Ciencias Económicas y...
. 2009. Oportunidades comerciales para el aceite de oliva de Castilla-La Mancha. [en línea]. Universidad de Castilla La Mancha. p. 10. 5. Cardona, J.; Paredes, M. 2014. Segmentación de mercados. Revista Académica Facultad de Ciencias Económicas y...
Validación del software biodieselFAO como herramienta de apoyo a la toma de decisión en proyectos de producción de biodiesel
(Universidad de Chile, 2011)
Los sistemas de apoyo a la toma de decisión, son herramientas que cuentan con sustento teórico y científico para poder identificar y medir riesgos, juegan cada vez un rol de mayor importancia en las decisiones que se toman dentro de una institución...
Systems to support decision making, are tools which identify and measure risks with theoretical and scientific support. They play a greater role in take of decisions within an institution. This tool simplifies the evaluation and comparison between different projects, allowing the best choice to satisfy the interests of business. BiodieselFAO software supports the take of decision in projects of oil or biodiesel production. Take into account economic, financial and social variables, as well as it allows assessing the project from an agricultural and industrial viewpoint. To validate the BiodieselFAO software in Chile it is necessary to test how it responds to a test case carried out in the country. For this purpose, the Assessment of the Biofuels Potential Production in Chile with Traditional Agricultural Crops report (EBPCh) was chosen, made by the Technical University Federico Santa María (UTFSM). In this report the production of biodiesel from rapeseed and sunflower seeds was evaluated, determining the economic viability of their production. The cash flows of the industrial biodiesel production obtained with the software BiodieselFAO and those obtained with UTFSM were compared statistically. The net present value (VANs) was also compared for all economic analysis performed. It is concluded that BiodieselFAO software cannot be validated, based on the significant differences (p>0.05) from the VAN obtained with the BiodieselFAO y those obtained with UTFSM. The cash flows obtained by the BiodieselFAO software doesn’t consider the salvage value of investments, therefore, the VAN and internal rate of return (TIR) are undervalued compared with those obtained by the UTFSM, this may be misleading to decision makers. Finally, it is concluded that isn’t advisable to use the BiodieselFAO software until these problems encountered are resolved....
Systems to support decision making, are tools which identify and measure risks with theoretical and scientific support. They play a greater role in take of decisions within an institution. This tool simplifies the evaluation and comparison between different projects, allowing the best choice to satisfy the interests of business. BiodieselFAO software supports the take of decision in projects of oil or biodiesel production. Take into account economic, financial and social variables, as well as it allows assessing the project from an agricultural and industrial viewpoint. To validate the BiodieselFAO software in Chile it is necessary to test how it responds to a test case carried out in the country. For this purpose, the Assessment of the Biofuels Potential Production in Chile with Traditional Agricultural Crops report (EBPCh) was chosen, made by the Technical University Federico Santa María (UTFSM). In this report the production of biodiesel from rapeseed and sunflower seeds was evaluated, determining the economic viability of their production. The cash flows of the industrial biodiesel production obtained with the software BiodieselFAO and those obtained with UTFSM were compared statistically. The net present value (VANs) was also compared for all economic analysis performed. It is concluded that BiodieselFAO software cannot be validated, based on the significant differences (p>0.05) from the VAN obtained with the BiodieselFAO y those obtained with UTFSM. The cash flows obtained by the BiodieselFAO software doesn’t consider the salvage value of investments, therefore, the VAN and internal rate of return (TIR) are undervalued compared with those obtained by the UTFSM, this may be misleading to decision makers. Finally, it is concluded that isn’t advisable to use the BiodieselFAO software until these problems encountered are resolved....
Uso del método de curvas homotéticas en la representación de ensayos monotónicos y cíclicos en suelos gruesos
(Universidad de Chile, 2012)
para equipos triaxiales convencionales. Como el uso de triaxiales de gran escala o ensayos in-situ son de alto costo, tiempo y esfuerzo, los ensayos a probetas escaladas se presentan como una alternativa factible y rentable para los diseños actuales de...
Aplicación de una batería de marcadores microsatélite para evaluar la diversidad genética, estructura poblacional y su estabilidad temporal, en mytilus chilensis del sur de chile
(Universidad de Chile, 2018)
Chile es el segundo productor y el primer exportador de mundial de mejillones del género Mytilus. El comercio internacional de alimentos requiere de sistemas de trazabilidad “del mar a la mesa” que permitan asegurar su calidad, inocuidad y...
Chile is the second producer and the world's leading exporter of mussels of the genus Mytilus. The international food trade requires traceability systems "from the sea to the table" to ensure its quality, safety and authenticity. To verify the administrative traceability systems, methods based on DNA analysis have been used, studying the genetic diversity, population structure and its temporal stability. This baseline allows the application of algorithms to assign individuals to their place of origin, verifying the information contained in the labeling. Our objective was to evaluate the genetic diversity, population structure and temporal stability of Mytilus chilensis in 6 localities of southern Chile, between 2009 and 2013, using 14 SSR loci. The 14 loci analyzed were polymorphic and on average 13.49 and 13.64 alleles were found per locus in 2009 and 2013 respectively. Significant deviations from the HWE were observed in 133 of the 165 tests performed. Slight population structure was found, the global fixation index (FST) values in 2009 and 2013 were low (0.014 and 0.009, respectively) but significantly different from zero (P <0.01) and genetic differentiation (FST) between pairs of localities was significant in 11 of the 15 comparisons made in 2009 and in 7 of the 15 comparisons made in 2013. The hierarchical space-time AMOVA analysis showed that there was no difference between the years, but the greatest variation of allele frequencies is found within the localities (97.77% in 2009 and 98.37% in 2009), the rest of the variation was due to differences between the localities. The total panel of 14 loci correctly assigned over 61% of the individuals to zones, while to locations it was only 36%. Although the correct allocation percentage was more than double that expected by chance, it is not sufficient for traceability purposes, so it is recommended to improve the marker panel with loci with greater allocation power or with SNP-type markers...
Chile is the second producer and the world's leading exporter of mussels of the genus Mytilus. The international food trade requires traceability systems "from the sea to the table" to ensure its quality, safety and authenticity. To verify the administrative traceability systems, methods based on DNA analysis have been used, studying the genetic diversity, population structure and its temporal stability. This baseline allows the application of algorithms to assign individuals to their place of origin, verifying the information contained in the labeling. Our objective was to evaluate the genetic diversity, population structure and temporal stability of Mytilus chilensis in 6 localities of southern Chile, between 2009 and 2013, using 14 SSR loci. The 14 loci analyzed were polymorphic and on average 13.49 and 13.64 alleles were found per locus in 2009 and 2013 respectively. Significant deviations from the HWE were observed in 133 of the 165 tests performed. Slight population structure was found, the global fixation index (FST) values in 2009 and 2013 were low (0.014 and 0.009, respectively) but significantly different from zero (P <0.01) and genetic differentiation (FST) between pairs of localities was significant in 11 of the 15 comparisons made in 2009 and in 7 of the 15 comparisons made in 2013. The hierarchical space-time AMOVA analysis showed that there was no difference between the years, but the greatest variation of allele frequencies is found within the localities (97.77% in 2009 and 98.37% in 2009), the rest of the variation was due to differences between the localities. The total panel of 14 loci correctly assigned over 61% of the individuals to zones, while to locations it was only 36%. Although the correct allocation percentage was more than double that expected by chance, it is not sufficient for traceability purposes, so it is recommended to improve the marker panel with loci with greater allocation power or with SNP-type markers...
Consumer responses to agricultural produce advertising in the O’Higgins Region of Chile
(2013)
publicidad de productos agrícolas en la Región de
O’Higgins, Chile. Cien. Inv. Agr. 40(1):31-41. El objetivo general de la investigación fue
analizar la respuesta del consumidor hacia la publicidad en productos agrícolas. Para este
propósito una encuesta...
. Técnicas de Análisis de Datos en Investigación de Mercados. Ediciones Pirámide. Madrid, España. 577 pp. Mariné, A., and M. Piqueras. 2006. Alimentación y Publicidad. Humanidades Médicas. Barcelona, España. p. 8:1-16. Mehta, A. 2000. Advertising...
. Técnicas de Análisis de Datos en Investigación de Mercados. Ediciones Pirámide. Madrid, España. 577 pp. Mariné, A., and M. Piqueras. 2006. Alimentación y Publicidad. Humanidades Médicas. Barcelona, España. p. 8:1-16. Mehta, A. 2000. Advertising...