Ingeniero Civil de Minas / La selección de un buen sistema de manejo de materiales en minería subterránea es clave para que los proyectos sean competitivos en la industria. En ellos interactúan un conjunto de variables que se relacionan entre ellas, por lo que saber qué aspectos son los más relevantes y como es su comportamiento adquiere gran importancia. Actualmente la división El Teniente se encuentra en el desarrollo de nuevos proyectos en cartera, denominado Plan de Desarrollo Alternativo (PDA), el cual busca darle flexibilidad al negocio divisional, asegurando el desarrollo de su Plan de Negocios y Desarrollo (PND). Los dos primeros proyectos corresponden a sector A y sector B, ambos en etapa de pre-factibilidad. En este trabajo se recopila información interna de la división referente al sistema de manejo de materiales de distintos sectores de la mina El Teniente, siendo estos: sector 1, sector 2, sector 3, sector 4, sector 5 y sector 6. Se comparan los costos de capital y operacionales estimados en su etapa de factibilidad, con los costos efectivamente realizados en la fase pre-operacional para los costos de capital y costos efectuados el año 2016 para los costos de operación. También, mediante un benchmarking, se comparan los distintos sistemas de los sectores mencionados, esto con el objetivo de reconocer las principales semejanzas y diferencias entre ellos, para posteriormente enmarcar con los proyectos A y B del PDA. Según esta comparación los ítems que presentan mayor relevancia en los costos son preparación e infraestructura para el capital, y extracción y transporte intermedio para la operación, que a su vez son los que presentan las diferencias de estimación más grandes. Los equipos LHD son comunes a todos los sectores, variando sus capacidades con tendencia al alza si las condiciones lo permiten. Se aprecia como en zonas en que se puedan generar estallidos de rocas o colapsos, o que poseen proyecciones de expansión, se privilegia la flexibilidad otorgada por los camiones en el nivel de acarreo, con inversiones menores, pero costos operacionales más altos. Finalmente, contextualizando lo realizado con los proyectos PDA, se observa como A y B son altamente competitivos en sus costos de operación. Poseen costos de capital más altos a otros sectores asociado a mayores estándares de construcción como también al cambio del criterio en la definición de capital. Sin embargo, aun considerando lo anterior, hay una mejora en la eficiencia de capital en relación a las reservas comparándola con los últimos proyectos realizados por la división. Se sugiere poner atención en las estimaciones de costos de extracción y transporte intermedio, junto con profundizar este trabajo añadiendo aspectos geomecánicos. / 13/04/2022

Ingeniera Civil Industrial / 23/08/2020

<p>This paper discusses the advantages and disadvantages of using different benchmarking models to measure and compare the efficiency of Swedish gas distributors. It also discusses to which extent the results of a benchmarking study should influence the revenue-cap which will be implemented in the gas distribution sector in Sweden from year 2011. The discussion is based on arguments from both theory and practical applications of benchmarking. The results suggest that benchmarking Swedish gas distributors against distributors in another country using a parametric model is most favorable, but the reliability will be increased if non-parametric models are used also. Partial and total productivity measures could be used to confirm results of other benchmarking analyses. The input variables could be limited to operating costs, and some environmental variables like customer density or area size should be taken into consideration. From 2011 it would be interesting to measure any change in efficiency stemming from the change to ex-ante regulation. Ideally, the results of the benchmarking analysis should be used as complementary information when setting the revenue-cap, and not as a mechanical instrument.</p>

This paper discusses the advantages and disadvantages of using different benchmarking models to measure and compare the efficiency of Swedish gas distributors. It also discusses to which extent the results of a benchmarking study should influence the revenue-cap which will be implemented in the gas distribution sector in Sweden from year 2011. The discussion is based on arguments from both theory and practical applications of benchmarking. The results suggest that benchmarking Swedish gas distributors against distributors in another country using a parametric model is most favorable, but the reliability will be increased if non-parametric models are used also. Partial and total productivity measures could be used to confirm results of other benchmarking analyses. The input variables could be limited to operating costs, and some environmental variables like customer density or area size should be taken into consideration. From 2011 it would be interesting to measure any change in efficiency stemming from the change to ex-ante regulation. Ideally, the results of the benchmarking analysis should be used as complementary information when setting the revenue-cap, and not as a mechanical instrument.

As the football industry develops into a highly competitive commercialized industry, football clubs must step up and improve their business strategy. This study focuses on the famous Italian club AC Milan, a club with many international titles but with declining revenues. The purpose of this thesis is to study how AC Milan can generate higher revenues by comparing its marketing and business strategy with the most profitable clubs in the world, the benchmarking partners Real Madrid and Manchester United. By using a benchmarking model, following the five steps of this process, conducting observation studies, an interview and examining secondhand information, gaps between the clubs were evaluated and analyzed. These evaluations became together with chosen theoretical references, the basis for the improvement suggestions and conclusions shown by the authors. The outcome of the benchmarking study shows that AC Milan has good possibilities to improve its match day revenues and its commercial revenues, through renovating and using its arena more efficiently and expanding its brand to unexplored markets, such as Asia. AC Milan will as a result base their business on more balanced and proportionate revenue channels.

Zugl.: Hamburg, Techn. Univ., Diss., 2009

Techn. Univ., Diss--Graz, 2009. / Literaturverz. S. 163 - 169.

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Measuring process safety performance is a challenge, and the wide variations in understanding, compliance, and implementation of process safety programs increase the challenge. Process safety can be measured in three strata: (1) measurement of process safety elements within facilities; (2) benchmarking of process safety elements among facilities; and (3) use of incident data collection from various sources for industrial safety performance assessment. The methods presently available for measurement of process safety within facilities are deficient because the results are strongly dependent on user judgment. Performance benchmarking among facilities is done within closed groups of organizations. Neither the questionnaires nor the results are available to the public. Many organizations collect data on industrial incidents. These organizations differ from each other in their interests, data collection procedures, definitions, and scope, and each of them analyzes its data to achieve its objectives. However, there have been no attempts to explore the potential of integrating data sources and harnessing these databases for industrial safety performance assessment. In this study we developed models to pursue the measurement of samples of the strata described above. The measurement methodologies employed herein overcome the disadvantages of existing methodologies and increase their capabilities.

Ulm, Univ., Diss., 2007.