La territorialización de la política pública en el proceso de gestión territorial como praxis para el desarrollo

El presente trabajo diserta sobre el proceso de gestión territorial en relación con una propiedad sucinta de la política pública, su territorialización. La base metodológica retoma criterios y factores que circunscriben al desarrollo territorial, y segregan dos cualidades al territorio, como eje transversal de política pública y como unidad de gestión. En suma, se analizan las interacciones que configuran redes sociales y se hace una propuesta sobre la estructura de convergencia para la gestión territorial. Los resultados muestran la factibilidad metodológica en un caso de estudio, los Consejos Distritales/Regionales de Desarrollo Rural Sustentable (CD/RDRS) del Centro de México. Se concluye que las metodologías son congruentes para discurrir sobre la condición o situación del desarrollo territorial, y con ello plantear soluciones a las problemáticas derivadas del proceso de gestión

SOWCompact: A federated process mining method for social workflows

The growing informatization of the environment allows modeling people’s behavior as a social workflow, where both individual actions and interactions with other people are captured. This modelling includes actions that are part of an individual’s routine, as well as less frequent events. Although infrequent actions may provide relevant information, it is routine behaviors that characterize users. However, the extraction of this knowledge is not simple. There are problems when analyzing together large amounts of traces from many users, resulting into a social workflow that does not clearly depict their behavior, either individually or as a group. Tools that allow grouping/filtering of users with a common behavior pattern are needed, to analyze each of these groups separately. This study presents the federated process mining and an associated tool, SOWCompact. Its potential is validated through the case study called activities of daily living (ADL). Using federated process mining, along with current process mining techniques, more compact processes using only the social workflow’s most relevant information are obtained, while allowing the analysis of these social workflows.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

Implementación de una red GSM para monitoreo de variables eléctricas en un banco de variadores de frecuencia en el Laboratorio de Control y Manipulación Automática de la Escuela de Ingeniería de Mantenimiento.

Se realizó la implementación de un sistema de monitoreo de variables eléctricas en un banco de variadores de frecuencia mediante mensajes de texto, el sistema está ubicado en el Laboratorio de Control y Manipulación Automática de la Escuela de Ingeniería de Mantenimiento, las variables sujetas a monitoreo son: el voltaje, la corriente y las potencias, este monitoreo se lo realizó a través de la comunicación GSM. Para el desarrollo de este trabajo se investigó acerca de la comunicación industrial con tecnología GSM y su configuración para el envío y recepción de mensajes de texto entre un teléfono celular y el PLC S7-1200 (SIEMENS). Anterior a la comunicación GSM/PLC se realizó la conexión de los distintos dispositivos utilizados, quedando comunicados de la siguiente manera: Un motor jaula de ardilla (SIEMENS) de 0.5HP con un variador de frecuencia (SINAMICS G110) de 1HP, un motor jaula de ardilla (SIEMENS) de 1HP con un variador de frecuencia (SINAMICS G110) de 3 HP, para la medición de las variables eléctricas presentes en el funcionamiento de los motores se utilizó un SENTRON PAC-3100 (SIEMENS) y la comunicación entre el SENTRON PAC y el PLC se realizó mediante un módulo RS-485. La programación de los dispositivos se realizó en el software TIA PORTAL que es una herramienta propia de la marca SIEMENS. Una vez elaborada la comunicación y programación de los dispositivos electrónicos, se logró acertadamente el control y el monitoreo de los motores mediante mensajes de texto.The implementation of a system of monitoring of electrical variables in a bank of frequency variators was carried out by means of text messages, the system is located in the Control and Automatic Manipulation Laboratory of the School of Maintenance Engineering, the variables subject to monitoring are : voltage, current and power, this monitoring is done through GSM communication. For the development of this work we investigated industrial communication with GSM technology and its configuration for sending and receiving text messages between a cell phone and the S7-1200 PLC (SIEMENS). Before GSM / PLC communication the connection of the different devices used was made, being communicated in the following way: A squirrel cage motor (SIEMENS) of 0.5HP with a frequency inverter (SINAMICS G110) of 3HP, for the mediation of the electrical variables present in the operation of the motors a SENTRON PAC-3100 (SIEMENS) was used and the communication between the SENTRON PAC and the PLC was carried out by means of an RS-485 module. The programming of the devices was carried out in the TIA PORTAL software which is a proprietary tool in the manner of SIEMENS. Once the communication and programming of the electronic devices has been elaborated, the control and the monitoring of the engines by means of a message have been correctly achieved. s of text

On rational cuspidal projective plane curves

In 2002, L. Nicolaescu and the fourth author formulated a very general conjecture which relates the geometric genus of a Gorenstein surface singularity with rational homology sphere link with the Seiberg--Witten invariant (or one of its candidates) of the link. Recently, the last three authors found some counterexamples using superisolated singularities. The theory of superisolated hypersurface singularities with rational homology sphere link is equivalent with the theory of rational cuspidal projective plane curves. In the case when the corresponding curve has only one singular point one knows no counterexample. In fact, in this case the above Seiberg--Witten conjecture led us to a very interesting and deep set of `compatibility properties' of these curves (generalising the Seiberg--Witten invariant conjecture, but sitting deeply in algebraic geometry) which seems to generalise some other famous conjectures and properties as well (for example, the Noether--Nagata or the log Bogomolov--Miyaoka--Yau inequalities). Namely, we provide a set of `compatibility conditions' which conjecturally is satisfied by a local embedded topological type of a germ of plane curve singularity and an integer $d$ if and only if the germ can be realized as the unique singular point of a rational unicuspidal projective plane curve of degree $d$. The conjectured compatibility properties have a weaker version too, valid for any rational cuspidal curve with more than one singular point. The goal of the present article is to formulate these conjectured properties, and to verify them in all the situations when the logarithmic Kodaira dimension of the complement of the corresponding plane curves is strictly less than 2

modelling the long-term effect of climate change on a zero energy and carbon dioxide building through energy efficiency and renewables.

Producción CientíficaOver the last few years, studies have predicted an increase in the overall air temperature due to climate change. Today’s society is already sensing this change, which could have a negative impact on the envi- ronment and effort s are being made to seek all possible measures to curb it. One of the consequences of this temperature rise would be its effect on indoor comfort within buildings, which may cause higher energy consumption and operational costs, while reducing the useful lifetime of air-conditioning equip- ment. In this paper, an existing zero energy building (ZEB) is being studied to understand the possible effects of climate change on its zero energy status. The building is also a zero carbon building because all of its generated energies come from renewable sources (biomass, geothermal and solar photovoltaic systems). The building LUCIA has the highest innovative technologies in energy systems, design and con- struction elements and is currently considered as one of the top three buildings with the highest LEED certification in the world. According to current European regulations, buildings will tend to become self- sufficient in terms of energy after 2020, and therefore this study will help us to understand the changes in energy consumption within a long-term timeframe, for such zero-energy buildings. With the aid of the Design Builder version 5 software and its EnergyPlus building energy engine, a building model is simu- lated and energy consumption is analyzed for the years 2020, 2050 and 2080 timeframe. The climatic conditions pertain to the city of Valladolid, Spain, which has a continental climate, while the expected changes in climatic conditions have been produced through the methodology developed by the University of Southampton, called CCworldweathergen. Results have shown that the cooling demand would significantly increase for the years 2050 and 2080, while space heating would drop. This will increase the overall demand for burning more biofu- els to cover the added demand in absorption cooling systems. Moreover, the previously excess generated electricity of the building by photovoltaics would then be totally consumed within the building due to increased demand. This implies that the installed systems will operate for longer hours, which will in- crease maintenance and replacement costs. As a result of this study, it becomes possible to quantify the expected changes in energy consumption and prepare preventive actions to anticipate this change, while improving the management and control of both the energy systems and the building

Energy Management by Dynamic Monitoring of a Building of the University of Valladolid

Producción CientíficaThe continuous increase of energy consumption in buildings enhances the importance of implementing energy management systems within the building facilities. These tools allow us to know precisely both energy consumption and use within the building. Monitoring energy consumption provides a clear view not only of the amount, but also of where and when energy is consumed in the building. Besides, a rear analysis of this information allows us to deduce whether there exists an inappropriate consumption, and thus the possibilities of improving building efficiency. A monitoring tool has been implemented within an academic building at the University of Valladolid, applying technological resources of Information Technology and Communication through dynamic monitoring of electrical and thermal parameters. Results obtained are gathered and analysed to directly contribute to improve the use of energy, reduce costs associated with its generation and use, and improve the thermal comfort of the building occupants. Keywords: Dynamic monitoring, energy performances, energy management, reduction of building consumption

Experimental Study and Analysis of Thermal Comfort in a University Campus Building in Tropical Climate

Producción CientíficaThis study presents the evaluation of the performance and acceptability of thermal comfort by students in the classrooms of a university building with minisplit-type air-conditioning systems, in a tropical climate. To carry out the study, temperature and humidity measurements were recorded, both outside and inside the selected classrooms, while the students were asked to complete thermal surveys on site. The survey model is based on the template proposed by Fanger and it was applied to a total number of 584 students. In each classroom, the Predicted Mean Vote (PMV) and the Predicted Percentage Dissatisfied (PPD) were estimated according to Fanger’s methodology, as well as the Thermal Sensation Vote (TSV) and the Actual Percentage Dissatisfied (APD), which were obtained from the measurements and the surveys. The results of this study showed that the PMV values, although they may vary with the insulation of the clothing, do not affect the TSV. Furthermore, comparing PMV vs. TSV scores, a 2 °C to 3 °C difference in operating temperature was found, whereby the thermal sensitivity for TSV was colder, so it could be assumed that the PMV model overestimates the thermal sensitivity of students in low-temperature conditions. In addition, an acceptability by 90% with thermal preferences between 23 °C and 24 °C were also found. These results indicate that it is possible to increase the temperature set point in minisplit-type air-conditioning system from 4 °C to 7 °C with respect to the currently set temperatures, without affecting the acceptability of the thermal environment to the students in the building

Dataciones arqueológicas contra tiempos sociales. Reflexiones sobre cronología y prehistoria de Canarias

En este trabajo se presentan algunas reflexiones sobre el problema de las cronologías en la construcción de la Prehistoria de Canarias. Frente a las concepciones tradicionales de escaso dinamismo y amparadas en modelos positivistas, historicistas o neodifusionistas, se propone el desarrollo de un discurso del tiempo histórico que se ajuste al marco de las prácticas sociales protagonizadas por las poblaciones aborígenes del Archipiélago.The aim of this paper is to make some reflections concerning the problem of the chronological considerations in the Prehistory of the Canary Islands. Despite the traditional conceptions, our intention is the development of a discourse about the historic time that fits in the framework of the social practices headed by the prehispanic populations of the Canary Islands

Energy Consumption Reduction of a Chiller Plant by Adding Evaporative Pads to Decrease Condensation Temperature

Producción CientíficaThe high energy consumption of cooling systems justifies the need for strategies to increase the efficiency of the facilities, in order to reduce the related CO2 emissions. This study aims to improve the performance and reduce the energy consumption of an 8.6 MW air cooled chiller. This installed capacity is biased due to the screw compressors, of 2.98 Energy Efficiency Ratio (EER) at full load (characteristics provided by the manufacturer). The chiller unit has been modified by placing evaporating cooling pads before the condensing coils. The chiller has been monitored for three months, recording over 544,322 measurements (5 min-step data), with and without the evaporative cooling pads, to assess the performance. Data comparison has been done by selecting two days (with and without evaporative panels) with the same health care load and temperatures. Implementing the proposed strategy yields an improvement in the European Seasonal Energy Efficiency Ratio (ESEER) from 3.69 to 4.83, while the Total Equivalent Warming Impact (TEWI) decreases about 1000 tCO2. Energy savings of up to 32.6 MWh result into a payback period lower than 2 years.Junta de Castilla y León (project VA272P18

Enfoques y desenfoques en la arqueología canaria a inicios del siglo XXI

Se abordan desde una perspectiva no inocente las tendencias de la Arqueología Canaria en las últimas dos década