Gonzalo de la Bárcena, "fontanero del reino", y la traída de aguas a los Archivos Reales de Simancas (Valladolid)

The article analyzes the project water supply to the Royal Archives of Simancas (Valladolid), known as the “Fountain of the King”. This work, promoted by King Felipe II, in the twilight of the 16th Century, was undertaken by Gonzalo de la Bárcena, "King's fountain Master" and other architects of the Court.El artículo analiza el proyecto de la traída de aguas a los Archivos Reales de Simancas (Valladolid), conocida como la “Fuente del Rey”. Esta obra, promocionada por el monarca Felipe II, en el ocaso del siglo XVI, fue acometida por Gonzalo de la Bárcena, “Fontanero del Reino”, y otros arquitectos de la Corte

Desarrollo de una metodología para correlacionar técnicas de análisis en confiabilidad con los ciclos de vida y la gestión de activos

Este proyecto surge a partir de los cambios que ha experimentado el mantenimiento con los nuevos estándares de calidad que se han venido aplicando, surgiendo la necesidad de enfocar el mantenimiento en aspectos como el ciclo de vida y la gestión de activos los cuales plantean la necesidad de obtener un equilibrio entre rendimiento, riesgo y costo del activo, es decir, este nuevo enfoque sugiere pautas acordes a las necesidades y exigencias actuales a nivel mundial. Para entender a mayor profundidad las necesidades mencionadas y la manera de enfrentarlas; el documento se desglosa en 7 capítulos, en donde se desarrollan temas como la gestión de activos y ciclo de vida, la PAS 55 e ISO 55000, Confiabilidad, Mantenimiento Centrado en Confiabilidad, Análisis de modos de falla y sus efectos y Optimización. Con estos temas se busca que el lector aclare las necesidades actuales de la industria y la forma de solucionar y enfocar el mantenimiento independientemente de la empresa y sector en el que se encuentre

Nuevas aportaciones sobre la capilla relicario de Villagarcía de Campos (Valladolid)

Based on two plants drawn for the Collegiate church of Villagarcía de Campos and other recently found documents, the original state of the reliquary chapel built by Magdalena de Ulloa (c. 1585) and its transformation into the chapel of Inés de Salazar (1660-1666) are studied. In addition, the authors analyzes the project for the reliquary-funerary chapel of Inés de Salazar (1613), which was not built

Planificación estratégica de comunicación para la fundación ciclopolis

El propósito de este trabajo es la presentación de un Plan de Comunicación elaborado para la Fundación Ciclópolis. Esta acción está fundamentada a partir de una Planificación Estratégica de Comunicación realizada en la organización que busca mejorar los canales de comunicación internos y externos, así como fortalecer su imagen institucional. Pero para alcanzar este objetivo es indispensable, primero, abordar a la comunicación desde sus inicios con las escuelas y corrientes más destacadas así se desarrollan escuelas como Chicago, Yale, Frankfurt, Palo Alto y Latinoamericana. Siendo ésta última la que cimienta este documento debido a que trabaja a la comunicación ligada al desarrollo y a la participación. En un segundo momento, se analiza la configuración del Estado Moderno de acuerdo a distintas concepciones hasta llegar a la conformación del Estado-Nación en América Latina. De esta manera se arriba en la realidad el Estado ecuatoriano y el auge de las Organizaciones No Gubernamentales con la necesidad de la implementación de una Planificación Estratégica. Así se trabajan los elementos de la Planificación Estratégica de Comunicación, sus características principales y metodología del proceso de Planificación siempre enfocado bajo un lineamiento participativo de acuerdos y consensos

Two-stage stochastic programming model for the thermal optimal day-ahead bid problem with physical future contracts

The reorganization of electricity industry in Spain has finished a new step with the start-up of the Derivatives Market. Nowadays, all electricity transactions in Spain and Portugal are managed jointly through the MIBEL by the Day-Ahead Market Operator and the Derivatives Market Operator. This new framework requires important changes in the short-term optimiza- tion strategies of the Generation Companies. One main characteristic of MIBEL's Derivatives Market is the existence of physical futures contracts; they imply the obligation to settle physically the energy. The market regulation establishes the mechanism for including those physical futures in the day-ahead bidding of the Generation Companies. Thus, the participation in the derivatives market changes the incomes function and it could imply changes in the optimal planning, both in the optimal bidding and in the unit commitment. The goal of this work is the optimization of the coordination between the physical futures contracts and the Day-Ahead bidding following this regulation. We propose a stochastic quadratic mixed-integer programming model which maximizes the expected profits taking into account futures contracts settlement. The model gives the simultaneous optimization for the Day-Ahead Market bidding strategy and power planning production (unit commitment) for the thermal units of a price-taker Generation Company. The uncertainty of the day-ahead market price is included in the stochastic model through a scenario set. There has been applied both simulation and reduction techniques for building this scenario set from a time series ARIMA model. The implementation of the model is done with the modeling language AMPL. Implementation details and some first computational experiences for small real cases are presented

Identification and study of actinomycete strains producers of a new family of spirotetronates

Motivation: New natural products are required to develop new antibiotics against the emergence of antibiotic-resistant pathogens. A family of three new spirotetronates with antibacterial activity against methicillin resistant Staphylococcus aureus (MRSA) and Mycobacterium was identified in a Micromonospora strain from MEDINA culture collection. Interrogation of the Liquid chromatography–mass spectrometry (LC-MS) database with a LC-MS fingerprint of these compounds allowed the identification of 27 strains which potentially biosynthesize these family of compounds. The aims of this study are i) to confirm the production of the spirotetronates in the 27 strains; ii) identify best fermentation conditions to maximize their productions; iii) identify possible new derivatives of this spirotetronate family in any of the strains. Methods: The 27 strains were taxonomically identified by 16S rRNA and were subjected to fermentation in an array of 10 cultivation media. The resulting fermentation broths were extracted and the corresponding extracts analysed by LC-MS and subjected to High-throughput screening(HTS) against MRSA and Mycobacterium.Results: The analysis of the LC-MS data, together with the HTS data, allowed us to identify producers of the family of spirotetronates. Moreover, the best conditions (i.e fermentation medium) for their production were established. A potential new spirotetronate derivative was also identified based in the LC-MS data

A Stochastic Programming Model for the Thermal Optimal Day-Ahead Bid Problem with Physical Futures Contracts

The reorganization of the electricity industry in Spain completed a new step with the start-up of the Derivatives Market. One main characteristic of MIBEL’s Derivatives Market is the existence of physical futures contracts; they imply the obligation to settle physically the energy. The market regulation establishes the mechanism for including those physical futures in the day-ahead bidding of the Generation Companies. The goal of this work is to optimize coordination between physical futures contracts and the Day-Ahead bidding which follow this regulation. We propose a stochastic quadratic mixed-integer programming model which maximizes the expected profits, taking into account futures contracts settlement. The model gives the simultaneous optimization for the Day-Ahead Market bidding strategy and power planning production (unit commitment) for the thermal units of a price-taker Generation Company. The uncertainty of the day-ahead market price is included in the stochastic model through a set of scenarios. Implementation details and some first computational experiences for small real cases are presented

A stochastic programming model for the thermal optimal day-ahead bid problem with physical futures contracts

The reorganization of the electricity industry in Spain completed a new step with the start-up of the Derivatives Market. One main characteristic of MIBEL’s Derivatives Market is the existence of physical futures contracts; they imply the obligation to physically settle the energy. The market regulation establishes the mechanism for including those physical futures in the day-ahead bidding of the Generation Companies. The goal of this work is to optimize coordination between physical futures contracts and the day-ahead bidding which follow this regulation. We propose a stochastic quadratic mixed-integer programming model which maximizes the expected profits, taking into account futures contracts settlement. The model gives the simultaneous optimization for the Day-Ahead Market bidding strategy and power planning production (unit commitment) for the thermal units of a price-taker Generation Company. The uncertainty of the Day-Ahead Market price is included in the stochastic model through a set of scenarios. Implementation details and some first computational experiences for small real cases are presented.Postprint (published version