Counting Highly Cited Papers for University Research Assessment: Conceptual and Technical Issues

A Kuhnian approach to research assessment requires us to consider that the important scientific breakthroughs that drive scientific progress are infrequent and that the progress of science does not depend on normal research. Consequently, indicators of research performance based on the total number of papers do not accurately measure scientific progress. Similarly, those universities with the best reputations in terms of scientific progress differ widely from other universities in terms of the scale of investments made in research and in the higher concentrations of outstanding scientists present, but less so in terms of the total number of papers or citations. This study argues that indicators for the 1% high-citation tail of the citation distribution reveal the contribution of universities to the progress of science and provide quantifiable justification for the large investments in research made by elite research universities. In this tail, which follows a power low, the number of the less frequent and highly cited important breakthroughs can be predicted from the frequencies of papers in the upper part of the tail. This study quantifies the false impression of excellence produced by multinational papers, and by other types of papers that do not contribute to the progress of science. Many of these papers are concentrated in and dominate lists of highly cited papers, especially in lower-ranked universities. The h-index obscures the differences between higher- and lower-ranked universities because the proportion of h-core papers in the 1% high-citation tail is not proportional to the value of the h-index.

Factors impacting the market share of Construction and Demolition (C&D) Waste recycling solutions

Current EU Directives force the Member States to assure by 2020 that 70% of the Construction and Demolition (C&D) waste is recovered instead of landfilled. While some countries have largely achieved this target, others still have a long way to go. For better understanding the differences arising from local disparities, six factors related to technical, economic, legislative and environmental aspects have been identified as crucial influences in the market share of C&D waste recycling solutions. These factors are able to identify the causes that limit the recycling rate of a certain region. Moreover, progress towards an efficient waste management can vary through the improvement of a single factor. This study provides the background for further fine-tuning the factors and their combination into a mathematical model for assessing the market share of C&D recycling solutions.

Sistema autónomo para carga de baterías mediante una instalación fotovoltaica con aplicación directa al vehículo eléctrico y usos

La situación energética actual es insostenible y como consecuencia se plantea un escenario próximo orientado a conseguir un futuro energético sostenible que permita el desarrollo económico y el bienestar social. La situación ambiental actual está afectada directamente por la combustión de combustibles fósiles que en 2013 constituyeron el 81% de la energía primaria utilizada por el ser humano y son la principal fuente antropogénica de gases de efecto invernadero. Los informes del IPCC1, ponen de manifiesto que el cambio climático se ha consolidado durante los últimos años y en la conferencia de la ONU sobre cambio climático de París que se celebrará a finales de 2015, se pretende que los gobiernos suscriban un acuerdo universal para limitar las emisiones de gases de efecto invernadero y evitar que el incremento de la temperatura media global supere los 2°C. Por otra parte, en el interior de las ciudades es especialmente preocupante, por su efecto directo sobre la salud humana, el impacto ambiental producido por las emisiones de NOx que generan el transporte de personas y mercancías. El sector del transporte fue responsable en 2012 del 27,9% del consumo final de energía. Una vez expuesto el escenario energético y ambiental actual, en esta tesis, se analiza la eficiencia de un sistema autónomo fotovoltaico para la carga de baterías de vehículos eléctricos y el uso del mismo con otras cargas, con el objetivo de aprovechar al máximo la energía eléctrica generada y contribuir a la utilización de energía limpia que no produzca impacto ambiental. Como primer paso para el desarrollo de la tesis se hizo un estudio de trabajos previos comenzando por las primeras aplicaciones de la energía fotovoltaica en los vehículos solares para después pasar a trabajos más recientes enfocados al suministro de energía a los vehículos eléctricos. También se hizo este estudio sobre las metodologías de simulación en los sistemas fotovoltaicos y en el modelado de distintos componentes. Posteriormente se eligieron, dentro de la amplia oferta existente en el mercado, los componentes con características técnicas más adecuadas para este tipo de instalaciones y para las necesidades que se pretenden cubrir. A partir de los parámetros técnicos de los componentes elegidos para configurar la instalación autónoma y utilizando modelos contrastados de distintos componentes, se ha desarrollado un modelo de simulación en ordenador del sistema completo con el que se han hecho simulaciones con distintos modos de demanda de energía eléctrica, según los modos de carga disponibles en el vehículo eléctrico para corriente alterna monofásica de 230 V. También se han simulado distintos tamaños del generador fotovoltaico y del sistema de acumulación de energía eléctrica para poder determinar la influencia de estos parámetros en los balances energéticos del sistema. Utilizando recursos propios el doctorando ha realizado la instalación real de un sistema fotovoltaico que incluye sistema de acumulación e inversor en un edificio de su propiedad. Para la realización de la tesis, La Fundación de Fomento e Innovación Industrial (F2I2) ha facilitado al doctorando un dispositivo que permite realizar la alimentación del vehículo eléctrico en modo 2 (este modo emplea un adaptador que incorpora dispositivos de seguridad y se comunica con el vehículo permitiendo ajustar la velocidad de recarga) y que ha sido necesario para los trabajos desarrollados. Se ha utilizado la red eléctrica como sistema de apoyo de la instalación fotovoltaica para permitir la recarga en el modo 2 que requiere más potencia que la proporcionada por el sistema fotovoltaico instalado. Se han analizado mediante simulación distintos regímenes de carga que se han estudiado experimentalmente en la instalación realizada, a la vez que se han hecho ensayos que se han reproducido mediante simulación con los mismos valores de radiación solar y temperatura con objeto de contrastar el modelo. Se han comparado los resultados experimentales con los obtenidos mediante simulación con objeto de caracterizar el comportamiento del sistema de acumulación (energía eléctrica suministrada y tensión de salida en las baterías) y del generador fotovoltaico (energía eléctrica fotovoltaica suministrada). Por último, se ha realizado un estudio económico de la instalación autónoma fotovoltaica ejecutada y simulada. En el mismo se ha planteado la utilización de fondos propios (como realmente se ha llevado a cabo) y la utilización de financiación, para determinar dos posibles escenarios que pudieran ser de utilidad a un propietario de vehículo eléctrico. Se han comparado los resultados obtenidos en los dos escenarios propuestos del estudio económico del sistema, en cuanto a los parámetros de tiempo de retorno de la inversión, valor actual neto de la inversión y tasa interna de retorno de la misma. Las conclusiones técnicas obtenidas, permiten la utilización del sistema con los modos de carga ensayados y otro tipo de cargas que aprovechen la generación eléctrica del sistema. Las baterías ofrecen mejor comportamiento cuando el aporte fotovoltaico está presente, pero no considera adecuado la conexión de cargas elevadas a un sistema de acumulación de gel (plomo-acido) como el que se ha utilizado, debido al comportamiento de este tipo de baterías ante demandas de intensidad de corriente eléctrica elevadas. Por otra parte, el comportamiento de este tipo de baterías con valores de intensidad de corriente eléctrica inferiores a 10 A en ausencia de energía fotovoltaica, con el objetivo de utilizar la generación de energía eléctrica diaria acumulada en el sistema, sí resulta interesante y ofrece un buen comportamiento del sistema de acumulación. Las circunstancias actuales de mercado, que carece de sistemas de acumulación de litio con precios de compra interesantes, no han permitido poder experimentar este sistema de acumulación en la instalación autónoma fotovoltaica ejecutada, tampoco se ha podido obtener el favor de ningún fabricante para ello. Actualmente hay disponibles sistemas de acumulación en litio que no se comercializan en España y que serían adecuados para el sistema de acumulación de energía propuesto en este estudio, que deja abierta las puertas para futuros trabajos de investigación. Las conclusiones económicas obtenidas, rentabilizan el uso de una instalación autónoma fotovoltaica con consumo instantáneo, sin acumulación de energía eléctrica. El futuro de conexión a red por parte de estas instalaciones, cuando se regule, aportará un incentivo económico para rentabilizar con menos tiempo las instalaciones autónomas fotovoltaicas, esto también deja la puerta abierta a futuros trabajos de investigación. El sistema de acumulación de energía aporta el mayor peso económico de inversión en este tipo de instalaciones. La instalación estudiada aporta indicadores económicos que la hacen rentable, pero se necesitaría que los precios de acumulación de la energía en sistemas eficientes estén comprendidos entre 100-200 €/kWh para que el sistema propuesto en este trabajo resulte atractivo a un potencial propietario de un vehículo eléctrico. ABSTRACT The current energy situation is untenable; it poses a scenario next focused on reaching a sustainable energy future, to allow economic development and social welfare. The environmental current situation is affected directly by the combustion of fossil fuels that in 2013 constituted 81 % of the primary energy used by the human being and they are the principal source human of greenhouse gases. The reports of the IPCC2, they reveal that the climate change has consolidated during the last years and in the conference of the UNO on climate change of Paris that will be celebrated at the end of 2015, there is claimed that the governments sign a universal agreement to limit the emission of greenhouse gases and to prevent that the increase of the global average temperature overcomes them 2°C. On the other hand, inside the cities it is specially worrying, for his direct effect on the human health, the environmental impact produced by the NOx emissions that generate the persons' transport and goods. The sector of the transport was responsible in 2012 of 27,9 % of the final consumption of energy. Once exposed the scenario and present environmental energy, in this thesis, it has analyzed the efficiency of an autonomous photovoltaic system for charging electric vehicles, and the use of the same with other workloads, with the objective to maximize the electrical energy generated and contribute to the use of clean energy that does not produce environmental impact. Since the first step for the development of the thesis did to itself a study of previous works beginning for the first applications of the photovoltaic power in the solar vehicles later to go on to more recent works focused on the power supply to the electrical vehicles. Also this study was done on the methodologies of simulation in the photovoltaic systems and in the shaped one of different components. Later they were chosen, inside the wide existing offer on the market, the components with technical characteristics more adapted for this type of facilities and for the needs that try to cover. From the technical parameters of the components chosen to form the autonomous installation and using models confirmed of different components, a model of simulation has developed in computer of the complete system with which simulations have been done by different manners of demand of electric power, according to the available manners of load in the electrical vehicle for single-phase alternating current of 230 V. Also there have been simulated different sizes of the photovoltaic generator and of the system of accumulation of electric power to be able to determine the influence of these parameters in the energy balances of the system. Using own resources the PhD student has realized a real installation of a photovoltaic system that includes system of accumulation and investing in a building of his property. For the accomplishment of the thesis, The Foundation of Promotion and Industrial Innovation (F2I2) it has facilitated to the PhD student a device that allows to realize the supply of the electrical vehicle in way 2 (this way uses an adapter that incorporates safety devices and communicates with the vehicle allowing to fit the speed of recharges) and that has been necessary for the developed works. The electrical network has been in use as system of support of the photovoltaic installation for allowing it her recharges in the way 2 that more power needs that provided by the photovoltaic installed system. There have been analyzed by means of simulation different rate of load that have been studied experimentally in the realized installation, simultaneously that have done to themselves tests that have reproduced by means of simulation with the same values of solar radiation and temperature in order the model contrasted. The experimental results have been compared by the obtained ones by means of simulation in order to characterize the behavior of the system of accumulation (supplied electric power and tension of exit in the batteries) and of the photovoltaic generator (photovoltaic supplied electric power). Finally, there has been realized an economic study of the autonomous photovoltaic executed and simulated installation. In the same one there has appeared the utilization of own funds (since really it has been carried out) and the utilization of financing, to determine two possible scenes that could be of usefulness to an owner of electrical vehicle. There have been compared the results obtained in both scenes proposed of the economic study of the system, as for the parameters of time of return of the investment, current clear value of the investment and rate hospitalizes of return of the same one. The technical obtained conclusions, they make the utilization of the system viable with the manners of load tested and another type of loads of that they take advantage the electrical generation of the system. The batteries offer better behavior when the photovoltaic contribution is present, but he does not consider to be suitable the connection of loads risen up to a system of accumulation of gel (lead - acid) as the one that has been in use, due to the behavior of this type of batteries before demands of intensity of electrical current raised. On the other hand, the behavior of this type of batteries with low values of intensity of electrical current to 10 To in absence of photovoltaic power, with the aim to use the generation of daily electric power accumulated in the system, yes turns out to be interesting and offers a good behavior of the system of accumulation. The current circumstances of market, which lacks systems of accumulation of lithium with interesting purchase prices, have not allowed to be able to experience this system of accumulation in the autonomous photovoltaic executed installation, neither one could have obtained the favor of any manufacturer for it. Nowadays there are available systems of accumulation in lithium that is not commercialized in Spain and that they would be adapted for the system of accumulation of energy proposed in this study, which makes the doors opened for future works of investigation. The economic obtained conclusions; they make more profitable the use of an autonomous photovoltaic installation with instantaneous consumption, without accumulation of electric power. The future of connection to network on the part of these facilities, when it is regulated, will contribute an economic incentive to make profitable with less time the autonomous photovoltaic facilities, this also leaves the door opened for future works of investigation. The system of accumulation of energy contributes the major economic weight of investment in this type of facilities. The studied installation contributes economic indicators that make her profitable, but it would be necessary that the prices of accumulation of the energy in efficient systems are understood between 100-200 € in order that the system proposed in this work turns out to be attractive to a proprietary potential of an electrical vehicle.

Método experimental para la caracterización de las diferentes tecnologías de integración arquitectónica de la energía fotovoltaica en condiciones de funcionamiento real = Experimental method for characterization of several building integrated photovoltaic technologies under real working conditions

Hoy en día, el proceso de un proyecto sostenible persigue realizar edificios de elevadas prestaciones que son, energéticamente eficientes, saludables y económicamente viables utilizando sabiamente recursos renovables para minimizar el impacto sobre el medio ambiente reduciendo, en lo posible, la demanda de energía, lo que se ha convertido, en la última década, en una prioridad. La Directiva 2002/91/CE "Eficiencia Energética de los Edificios" (y actualizaciones posteriores) ha establecido el marco regulatorio general para el cálculo de los requerimientos energéticos mínimos. Desde esa fecha, el objetivo de cumplir con las nuevas directivas y protocolos ha conducido las políticas energéticas de los distintos países en la misma dirección, centrándose en la necesidad de aumentar la eficiencia energética en los edificios, la adopción de medidas para reducir el consumo, y el fomento de la generación de energía a través de fuentes renovables. Los edificios de energía nula o casi nula (ZEB, Zero Energy Buildings ó NZEB, Net Zero Energy Buildings) deberán convertirse en un estándar de la construcción en Europa y con el fin de equilibrar el consumo de energía, además de reducirlo al mínimo, los edificios necesariamente deberán ser autoproductores de energía. Por esta razón, la envolvente del edifico y en particular las fachadas son importantes para el logro de estos objetivos y la tecnología fotovoltaica puede tener un papel preponderante en este reto. Para promover el uso de la tecnología fotovoltaica, diferentes programas de investigación internacionales fomentan y apoyan soluciones para favorecer la integración completa de éstos sistemas como elementos arquitectónicos y constructivos, los sistemas BIPV (Building Integrated Photovoltaic), sobre todo considerando el próximo futuro hacia edificios NZEB. Se ha constatado en este estudio que todavía hay una falta de información útil disponible sobre los sistemas BIPV, a pesar de que el mercado ofrece una interesante gama de soluciones, en algunos aspectos comparables a los sistemas tradicionales de construcción. Pero por el momento, la falta estandarización y de una regulación armonizada, además de la falta de información en las hojas de datos técnicos (todavía no comparables con las mismas que están disponibles para los materiales de construcción), hacen difícil evaluar adecuadamente la conveniencia y factibilidad de utilizar los componentes BIPV como parte integrante de la envolvente del edificio. Organizaciones internacionales están trabajando para establecer las normas adecuadas y procedimientos de prueba y ensayo para comprobar la seguridad, viabilidad y fiabilidad estos sistemas. Sin embargo, hoy en día, no hay reglas específicas para la evaluación y caracterización completa de un componente fotovoltaico de integración arquitectónica de acuerdo con el Reglamento Europeo de Productos de la Construcción, CPR 305/2011. Los productos BIPV, como elementos de construcción, deben cumplir con diferentes aspectos prácticos como resistencia mecánica y la estabilidad; integridad estructural; seguridad de utilización; protección contra el clima (lluvia, nieve, viento, granizo), el fuego y el ruido, aspectos que se han convertido en requisitos esenciales, en la perspectiva de obtener productos ambientalmente sostenibles, saludables, eficientes energéticamente y económicamente asequibles. Por lo tanto, el módulo / sistema BIPV se convierte en una parte multifuncional del edificio no sólo para ser física y técnicamente "integrado", además de ser una oportunidad innovadora del diseño. Las normas IEC, de uso común en Europa para certificar módulos fotovoltaicos -IEC 61215 e IEC 61646 cualificación de diseño y homologación del tipo para módulos fotovoltaicos de uso terrestre, respectivamente para módulos fotovoltaicos de silicio cristalino y de lámina delgada- atestan únicamente la potencia del módulo fotovoltaico y dan fe de su fiabilidad por un período de tiempo definido, certificando una disminución de potencia dentro de unos límites. Existe también un estándar, en parte en desarrollo, el IEC 61853 (“Ensayos de rendimiento de módulos fotovoltaicos y evaluación energética") cuyo objetivo es la búsqueda de procedimientos y metodologías de prueba apropiados para calcular el rendimiento energético de los módulos fotovoltaicos en diferentes condiciones climáticas. Sin embargo, no existen ensayos normalizados en las condiciones específicas de la instalación (p. ej. sistemas BIPV de fachada). Eso significa que es imposible conocer las efectivas prestaciones de estos sistemas y las condiciones ambientales que se generan en el interior del edificio. La potencia nominal de pico Wp, de un módulo fotovoltaico identifica la máxima potencia eléctrica que éste puede generar bajo condiciones estándares de medida (STC: irradición 1000 W/m2, 25 °C de temperatura del módulo y distribución espectral, AM 1,5) caracterizando eléctricamente el módulo PV en condiciones específicas con el fin de poder comparar los diferentes módulos y tecnologías. El vatio pico (Wp por su abreviatura en inglés) es la medida de la potencia nominal del módulo PV y no es suficiente para evaluar el comportamiento y producción del panel en términos de vatios hora en las diferentes condiciones de operación, y tampoco permite predecir con convicción la eficiencia y el comportamiento energético de un determinado módulo en condiciones ambientales y de instalación reales. Un adecuado elemento de integración arquitectónica de fachada, por ejemplo, debería tener en cuenta propiedades térmicas y de aislamiento, factores como la transparencia para permitir ganancias solares o un buen control solar si es necesario, aspectos vinculados y dependientes en gran medida de las condiciones climáticas y del nivel de confort requerido en el edificio, lo que implica una necesidad de adaptación a cada contexto específico para obtener el mejor resultado. Sin embargo, la influencia en condiciones reales de operación de las diferentes soluciones fotovoltaicas de integración, en el consumo de energía del edificio no es fácil de evaluar. Los aspectos térmicos del interior del ambiente o de iluminación, al utilizar módulos BIPV semitransparentes por ejemplo, son aún desconocidos. Como se dijo antes, la utilización de componentes de integración arquitectónica fotovoltaicos y el uso de energía renovable ya es un hecho para producir energía limpia, pero también sería importante conocer su posible contribución para mejorar el confort y la salud de los ocupantes del edificio. Aspectos como el confort, la protección o transmisión de luz natural, el aislamiento térmico, el consumo energético o la generación de energía son aspectos que suelen considerarse independientemente, mientras que todos juntos contribuyen, sin embargo, al balance energético global del edificio. Además, la necesidad de dar prioridad a una orientación determinada del edificio, para alcanzar el mayor beneficio de la producción de energía eléctrica o térmica, en el caso de sistemas activos y pasivos, respectivamente, podría hacer estos últimos incompatibles, pero no necesariamente. Se necesita un enfoque holístico que permita arquitectos e ingenieros implementar sistemas tecnológicos que trabajen en sinergia. Se ha planteado por ello un nuevo concepto: "C-BIPV, elemento fotovoltaico consciente integrado", esto significa necesariamente conocer los efectos positivos o negativos (en términos de confort y de energía) en condiciones reales de funcionamiento e instalación. Propósito de la tesis, método y resultados Los sistemas fotovoltaicos integrados en fachada son a menudo soluciones de vidrio fácilmente integrables, ya que por lo general están hechos a medida. Estos componentes BIPV semitransparentes, integrados en el cerramiento proporcionan iluminación natural y también sombra, lo que evita el sobrecalentamiento en los momentos de excesivo calor, aunque como componente estático, asimismo evitan las posibles contribuciones pasivas de ganancias solares en los meses fríos. Además, la temperatura del módulo varía considerablemente en ciertas circunstancias influenciada por la tecnología fotovoltaica instalada, la radiación solar, el sistema de montaje, la tipología de instalación, falta de ventilación, etc. Este factor, puede suponer un aumento adicional de la carga térmica en el edificio, altamente variable y difícil de cuantificar. Se necesitan, en relación con esto, más conocimientos sobre el confort ambiental interior en los edificios que utilizan tecnologías fotovoltaicas integradas, para abrir de ese modo, una nueva perspectiva de la investigación. Con este fin, se ha diseñado, proyectado y construido una instalación de pruebas al aire libre, el BIPV Env-lab "BIPV Test Laboratory", para la caracterización integral de los diferentes módulos semitransparentes BIPV. Se han definido también el método y el protocolo de ensayos de caracterización en el contexto de un edificio y en condiciones climáticas y de funcionamiento reales. Esto ha sido posible una vez evaluado el estado de la técnica y la investigación, los aspectos que influyen en la integración arquitectónica y los diferentes tipos de integración, después de haber examinado los métodos de ensayo para los componentes de construcción y fotovoltaicos, en condiciones de operación utilizadas hasta ahora. El laboratorio de pruebas experimentales, que consiste en dos habitaciones idénticas a escala real, 1:1, ha sido equipado con sensores y todos los sistemas de monitorización gracias a los cuales es posible obtener datos fiables para evaluar las prestaciones térmicas, de iluminación y el rendimiento eléctrico de los módulos fotovoltaicos. Este laboratorio permite el estudio de tres diferentes aspectos que influencian el confort y consumo de energía del edificio: el confort térmico, lumínico, y el rendimiento energético global (demanda/producción de energía) de los módulos BIPV. Conociendo el balance de energía para cada tecnología solar fotovoltaica experimentada, es posible determinar cuál funciona mejor en cada caso específico. Se ha propuesto una metodología teórica para la evaluación de estos parámetros, definidos en esta tesis como índices o indicadores que consideran cuestiones relacionados con el bienestar, la energía y el rendimiento energético global de los componentes BIPV. Esta metodología considera y tiene en cuenta las normas reglamentarias y estándares existentes para cada aspecto, relacionándolos entre sí. Diferentes módulos BIPV de doble vidrio aislante, semitransparentes, representativos de diferentes tecnologías fotovoltaicas (tecnología de silicio monocristalino, m-Si; de capa fina en silicio amorfo unión simple, a-Si y de capa fina en diseleniuro de cobre e indio, CIS) fueron seleccionados para llevar a cabo una serie de pruebas experimentales al objeto de demostrar la validez del método de caracterización propuesto. Como resultado final, se ha desarrollado y generado el Diagrama Caracterización Integral DCI, un sistema gráfico y visual para representar los resultados y gestionar la información, una herramienta operativa útil para la toma de decisiones con respecto a las instalaciones fotovoltaicas. Este diagrama muestra todos los conceptos y parámetros estudiados en relación con los demás y ofrece visualmente toda la información cualitativa y cuantitativa sobre la eficiencia energética de los componentes BIPV, por caracterizarlos de manera integral. ABSTRACT A sustainable design process today is intended to produce high-performance buildings that are energy-efficient, healthy and economically feasible, by wisely using renewable resources to minimize the impact on the environment and to reduce, as much as possible, the energy demand. In the last decade, the reduction of energy needs in buildings has become a top priority. The Directive 2002/91/EC “Energy Performance of Buildings” (and its subsequent updates) established a general regulatory framework’s methodology for calculation of minimum energy requirements. Since then, the aim of fulfilling new directives and protocols has led the energy policies in several countries in a similar direction that is, focusing on the need of increasing energy efficiency in buildings, taking measures to reduce energy consumption, and fostering the use of renewable sources. Zero Energy Buildings or Net Zero Energy Buildings will become a standard in the European building industry and in order to balance energy consumption, buildings, in addition to reduce the end-use consumption should necessarily become selfenergy producers. For this reason, the façade system plays an important role for achieving these energy and environmental goals and Photovoltaic can play a leading role in this challenge. To promote the use of photovoltaic technology in buildings, international research programs encourage and support solutions, which favors the complete integration of photovoltaic devices as an architectural element, the so-called BIPV (Building Integrated Photovoltaic), furthermore facing to next future towards net-zero energy buildings. Therefore, the BIPV module/system becomes a multifunctional building layer, not only physically and functionally “integrated” in the building, but also used as an innovative chance for the building envelope design. It has been found in this study that there is still a lack of useful information about BIPV for architects and designers even though the market is providing more and more interesting solutions, sometimes comparable to the existing traditional building systems. However at the moment, the lack of an harmonized regulation and standardization besides to the non-accuracy in the technical BIPV datasheets (not yet comparable with the same ones available for building materials), makes difficult for a designer to properly evaluate the fesibility of this BIPV components when used as a technological system of the building skin. International organizations are working to establish the most suitable standards and test procedures to check the safety, feasibility and reliability of BIPV systems. Anyway, nowadays, there are no specific rules for a complete characterization and evaluation of a BIPV component according to the European Construction Product Regulation, CPR 305/2011. BIPV products, as building components, must comply with different practical aspects such as mechanical resistance and stability; structural integrity; safety in use; protection against weather (rain, snow, wind, hail); fire and noise: aspects that have become essential requirements in the perspective of more and more environmentally sustainable, healthy, energy efficient and economically affordable products. IEC standards, commonly used in Europe to certify PV modules (IEC 61215 and IEC 61646 respectively crystalline and thin-film ‘Terrestrial PV Modules-Design Qualification and Type Approval’), attest the feasibility and reliability of PV modules for a defined period of time with a limited power decrease. There is also a standard (IEC 61853, ‘Performance Testing and Energy Rating of Terrestrial PV Modules’) still under preparation, whose aim is finding appropriate test procedures and methodologies to calculate the energy yield of PV modules under different climate conditions. Furthermore, the lack of tests in specific conditions of installation (e.g. façade BIPV devices) means that it is difficult knowing the exact effective performance of these systems and the environmental conditions in which the building will operate. The nominal PV power at Standard Test Conditions, STC (1.000 W/m2, 25 °C temperature and AM 1.5) is usually measured in indoor laboratories, and it characterizes the PV module at specific conditions in order to be able to compare different modules and technologies on a first step. The “Watt-peak” is not enough to evaluate the panel performance in terms of Watt-hours of various modules under different operating conditions, and it gives no assurance of being able to predict the energy performance of a certain module at given environmental conditions. A proper BIPV element for façade should take into account thermal and insulation properties, factors as transparency to allow solar gains if possible or a good solar control if necessary, aspects that are linked and high dependent on climate conditions and on the level of comfort to be reached. However, the influence of different façade integrated photovoltaic solutions on the building energy consumption is not easy to assess under real operating conditions. Thermal aspects, indoor temperatures or luminance level that can be expected using building integrated PV (BIPV) modules are not well known. As said before, integrated photovoltaic BIPV components and the use of renewable energy is already a standard for green energy production, but would also be important to know the possible contribution to improve the comfort and health of building occupants. Comfort, light transmission or protection, thermal insulation or thermal/electricity power production are aspects that are usually considered alone, while all together contribute to the building global energy balance. Besides, the need to prioritize a particular building envelope orientation to harvest the most benefit from the electrical or thermal energy production, in the case of active and passive systems respectively might be not compatible, but also not necessary. A holistic approach is needed to enable architects and engineers implementing technological systems working in synergy. A new concept have been suggested: “C-BIPV, conscious integrated BIPV”. BIPV systems have to be “consciously integrated” which means that it is essential to know the positive and negative effects in terms of comfort and energy under real operating conditions. Purpose of the work, method and results The façade-integrated photovoltaic systems are often glass solutions easily integrable, as they usually are custommade. These BIPV semi-transparent components integrated as a window element provides natural lighting and shade that prevents overheating at times of excessive heat, but as static component, likewise avoid the possible solar gains contributions in the cold months. In addition, the temperature of the module varies considerably in certain circumstances influenced by the PV technology installed, solar radiation, mounting system, lack of ventilation, etc. This factor may result in additional heat input in the building highly variable and difficult to quantify. In addition, further insights into the indoor environmental comfort in buildings using integrated photovoltaic technologies are needed to open up thereby, a new research perspective. This research aims to study their behaviour through a series of experiments in order to define the real influence on comfort aspects and on global energy building consumption, as well as, electrical and thermal characteristics of these devices. The final objective was to analyze a whole set of issues that influence the global energy consumption/production in a building using BIPV modules by quantifying the global energy balance and the BIPV system real performances. Other qualitative issues to be studied were comfort aspect (thermal and lighting aspects) and the electrical behaviour of different BIPV technologies for vertical integration, aspects that influence both energy consumption and electricity production. Thus, it will be possible to obtain a comprehensive global characterization of BIPV systems. A specific design of an outdoor test facility, the BIPV Env-lab “BIPV Test Laboratory”, for the integral characterization of different BIPV semi-transparent modules was developed and built. The method and test protocol for the BIPV characterization was also defined in a real building context and weather conditions. This has been possible once assessed the state of the art and research, the aspects that influence the architectural integration and the different possibilities and types of integration for PV and after having examined the test methods for building and photovoltaic components, under operation conditions heretofore used. The test laboratory that consists in two equivalent test rooms (1:1) has a monitoring system in which reliable data of thermal, daylighting and electrical performances can be obtained for the evaluation of PV modules. The experimental set-up facility (testing room) allows studying three different aspects that affect building energy consumption and comfort issues: the thermal indoor comfort, the lighting comfort and the energy performance of BIPV modules tested under real environmental conditions. Knowing the energy balance for each experimented solar technology, it is possible to determine which one performs best. A theoretical methodology has been proposed for evaluating these parameters, as defined in this thesis as indices or indicators, which regard comfort issues, energy and the overall performance of BIPV components. This methodology considers the existing regulatory standards for each aspect, relating them to one another. A set of insulated glass BIPV modules see-through and light-through, representative of different PV technologies (mono-crystalline silicon technology, mc-Si, amorphous silicon thin film single junction, a-Si and copper indium selenide thin film technology CIS) were selected for a series of experimental tests in order to demonstrate the validity of the proposed characterization method. As result, it has been developed and generated the ICD Integral Characterization Diagram, a graphic and visual system to represent the results and manage information, a useful operational tool for decision-making regarding to photovoltaic installations. This diagram shows all concepts and parameters studied in relation to each other and visually provides access to all the results obtained during the experimental phase to make available all the qualitative and quantitative information on the energy performance of the BIPV components by characterizing them in a comprehensive way.

El reto de la extensión agraria en el Perú: de la transferencia de tecnologías a un trabajo integrado sobre el territorio. Aplicación en la provincia de Aymaraes

La extensión agraria entendida como transferencia de tecnología que tuvo su auge en la llamada Revolución Verde, con el paso del tiempo empezó a mostrar serias deficiencias en su objetivo de lograr que los agricultores asumieran las nuevas tecnologías, esto motivo un continuo trabajo de investigación en el área que ha generado una serie de modelos y enfoques. Sin embargo, a pesar que mucho ha cambiado, aún no se logra responder adecuadamente a la necesidad de cambio e innovación que tienen los pequeños productores de los países en desarrollo. El presente trabajo tiene como objetivo proponer un modelo para el desarrollo de la producción agrícola en el marco de un trabajo integrado sobre el territorio. Para esto se ha analizado los cambios referentes a los procesos de desarrollo rural y como éstos han impactado directamente en la forma en la que se concibe la extensión. En este recorrido podemos ver con claridad cómo los procesos de desarrollo que partían de un modelo exógeno, van cediendo a procesos endógenos y neo-endógenos, en donde el territorio tiene un valor fundamental. Se plantea que tanto la globalización como el Cambio Climático constituyen nuevos desafíos para el desarrollo rural. Posteriormente, en el análisis de la extensión agropecuaria en el mundo, se ha podido observar como la extensión ha ido cambiando hacia procesos más participativos y horizontales, introduciéndose en ella también los conceptos de innovación y de sistemas, como la posibilidad de comprender su complejidad. Al hacer el recorrido de la Extensión Agraria en el Perú se puede visualizar como, al igual que en el mundo, tuo un periodo de apogeo pero seguido de un periodo de crisis que terminó por eliminarla del espacio público. Actualmente los servicios de extensión en el Perú se manejan por entidades privadas, gobiernos locales y proyectos especiales, pero ninguno de ellos llega realmente al pequeño productor, que constituye la población más importante en países como el Perú. Este trabajo plantea un modelo para responder a este contexto, el cual se basa en tres enfoques de diferentes ámbitos: el Desarrollo Económico Local, El metamodelo WWP (Working with people) y los sistemas de innovación agrícolas. El modelo plantea un trabajo en cuatro componentes a señalar: (1) Planificación basada en herramientas técnicas y entendida como aprendizaje social, (2) Fortalecimiento del Capital Social ya existente, (3) Servicios de extensión con nuevas tecnologías y (4) Acompañamiento a los productores en el mercado. En este modelo, una consideración muy especial la tiene la entidad articuladora o bróker del presente sistema, el cual es una entidad que se encarga de activar y mantener el sistema, tomando en consideración la importancia del fortalecimiento de las redes sobre el territorio. La aplicación de este modelo se realizó en cuatro distritos de la provincia de Aymaraes (Región Apurimac) que se encuentran formando parte de la cuenca del Río Pachachaca. Para verificar la idoneidad del modelo en el fortalecimiento de las actividades agropecuarias, se realizó un análisis de una línea de base y de una línea de salida, estableciendo una serie de indicadores. Se realizó también un análisis ex – post para determinar las posibilidades de sostenibilidad del modelo. Se concluyó luego de la aplicación que el modelo tiene una serie de condiciones importantes para la eficacia y la sostenibilidad de los procesos de desarrollo de las actividades agropecuarias, aunque es necesario establecer algunos requisitos básicos para el funcionamiento de la propuesta, tales como la presencia de un actor que pueda actuar como articulador y la necesidad de trabajar a un nivel provincial en lugar de local. ABSTRACT Throughout time, agricultural extension, understood as technology transfer, that had its peak during the Green Revolution, began to show serious deficiencies in its goal of making farmers assume the new technologies. This created continuous research in the area that has generated a number of models and approaches. However, although much has changed, yet it fails to respond adequately to the need for change and innovation that small producers of developing countries have. This study aims to propose a model for the development of agricultural production in the framework of an integrated work on the territory. For this purpose, this research analyzed the changes related to rural development processes and how they have directly impacted on how the extension is conceived. On this tour it can be clearly seen how the development processes that started from an exogenous model, are giving way to neo-endogenous and endogenous processes, where the territory has a fundamental value. It is proposed that both globalization and climate change pose new challenges for rural development. Later in the analysis of agricultural extension in the world, it has been observed how the extension has been changing towards more participatory and horizontal processes, also introducing in it the innovative and systems concepts, as well as the ability to understand its complexity. When making the path of the agricultural extension in Peru, it can be seen how, same as it happened in the world, it had peak period that was followed by a crisis that eventually eliminated it from the public space. Currently, the extension services in Peru are managed by private entities, local governments and special projects, but none of them actually reach the small producer, who represents the most important population in countries like Peru. This paper proposes a model to respond to this context, which is based on three approaches of different areas: Local Economic Development, WWP metamodel (Working with people) and the agricultural innovation systems. The model presents a work in four parts to note: (1) Planning based in technical tools and understood as social learning, (2) Strengthening of the existing social capital, (3) Extension services with new technologies and (4) Support of producers in the market. In this model, special consideration is given to the coordinating entity or broker of this system, which is an entity that is responsible for activating and maintaining the system, taking into account the importance of strengthening networks in the territory. The application of this model was conducted in four districts of the Aymaraes province (Apurimac Region) which are part of the Rio Pachachaca watershed. To verify the suitability of the model in strengthening agricultural activities, an analysis of a baseline and a starting line was made, establishing a series of indicators. An analysis ex-post was also performed to determine the possibilities of sustainability of the model. After the application it was concluded that the model has a number of important conditions for the effectiveness and sustainability of development processes of agricultural activities, although it is necessary to establish some basic requirements for the operation of the proposal, such as the presence of an actor who can act as an articulator and the need to work at a provincial level rather than locally.

Current Problems Involving the Dismantle of Asbestos- Cement Sheets in Buildings. The Case of Central Market in Alicante

The project and the works described in this article mainly deal with the removal of the current asbestos-cement covering of the roof of the Central Market in Alicante and its replacement with zinc diamond-shaped scales, similar to the originals which were implemented in 1921 when the building was put into service. These upgrades were necessary to avoid the causes (and consequences) of rainwater infiltration, as described in an earlier report in 2006, also drafted by the author of this article. The article illustrates the difficulties involving the practical application of Spanish Code RD 396/2006 (minimum safety and health requirements for work with risk of exposure to asbestos) in a complex case such as this, especially with regard to aspects such as economic (increasing costs), technical (increased difficulty of implementation), and the total duration of the work (total increase in duration due to interference with other trades).

The relevance of harmonising the technical level of social housing with the urban level of the neighbourhood through the example of the 500 dwellings in Albacete

The Architecture and Household Trade Union built nearly 2,000 subsidized dwellings in Albacete from 1941 to 1971. It was the responsible entity from the end of the Civil War until the beginning of Democracy of the social policy programs in Spain. Later on, and together with the National Housing Institute, were responsible for the construction activity. Its limited budget, scarcity of technical and human resources and an urgent need for new housing developments, constituted the basis for producing a vast housing market of low construction qualities. However, thanks to the true architectonic expertise of some of the professionals, some of the developments were designed with a clear urban strategy and in direct relation with the city, which characterizes them to be studied and conserved. This is the case for the selected development for the analysis, the urban complex of the 500 dwellings in Albacete, the Hermanos Falcó Neighborhood. Designed and built between 1963, Alfonso Crespo and Adolfo Gil architects, and 1977 second reformed project by the architect Fernando Rodríguez. It is characterized by its layout on the territory, its controlled relation with the city and its different types of open blocks. Above all, its spatial and human scale strengths, directly related to the European post-war proposals, have to be emphasized; although its technical deficiencies affect the interior quality of the houses. This paper examines its virtues and failures and proposes, using current tools, its renovation. This proposal main aims are to extend its lifetime and develop the particular and urban sustainability levels.

Approximation to EU Technical Standards with and without the Promise of Membership: the Cases of Slovakia and Ukraine. EU Diplomacy Paper 02/2013

This paper aims to identify the extent to which the non-promise of membership of the European Union (EU) precludes the motivation of Ukraine as European Neighbourhood Policy country to adopt EU policies in the field of market access, namely technical standards and regulations. Its approximation approach is compared to the fast-tracked accession of Slovakia, which was driven by a clear-cut membership promise. Furthermore, the paper elaborates whether the conclusion of an Association Agreement between the EU and Ukraine, including a Deep and Comprehensive Free Trade Agreement, provides sufficient incentives for Ukraine to continue reforming its quality infrastructure in order to gain access to the Single European Market. Finally, scenarios of possible developments of EU-Ukraine relations are deliberated in the context of the EU-Ukraine-Russia triangle. The paper argues that market access provides sufficient stimulus for third countries to adhere to EU technical standards – even in the absence of a clear and credible promise of future EU membership. Yet, in the case of Ukraine, the country’s relations with Russia appear to compete with its EU approximation process, resulting for the time being in Ukraine attempting to pursue a balanced dual cooperation with both the EU and Russia.

Innovative Capabilities and Market Performance: The European Union in International Comparison. Jean Monnet/Robert Schuman Paper Series Vol. 12, No. 7, September 2012

This paper investigates the EU’s international positioning in terms of innovative capabilities and global market performance by using most recent quantitative data on a wide branch of indicators. The EU’s performance is compared to the standings of its most important economic competitors and emerging economic powerhouses: the USA, Japan, China, Brazil, India, Russia and South Africa. By doing so, this paper offer insightful and deep information about the EU’s power to compete and rank in international economic affairs. It will be proofed that the European Union ranks in many of the indicators related to innovative capabilities in good position and the EU’s overall global market performance is excellent, whereas the BRICS are underachieving.

Enforcement in the EU Single Market. CEPS Paperbacks. October 2012

Enforcement of and compliance with laws and regulations in the single market of the European Union are not only legally necessary, but also of crucial economic importance for business, consumers and the EU economy at large. This book provides a comprehensive overview of the current EU enforcement landscape and its functioning. The classical infringement route via the Court of Justice of the European Union remains critical as a last resort, but it is increasingly seen as very slow and costly. The new emphasis relies heavily on a range of pre-infringement as well as preventive initiatives that prevent new technical barriers from arising. They also tend to be far less costly and more rapid, informal and effective in pursuing a properly functioning internal market. These improvements are welcome news for the single market, yet EU enforcement still has problems to solve, for example in the area of public procurement.

An economy with unrealistic indicators: an evaluation of the economic situation in Belarus and a forecast for 2013. OSW Commentary No. 103, 2013-02-20

The macroeconomic results achieved by Belarus in 2012 laid bare the weakness and the inefficiency of its economy. Belarus’s GDP and positive trade balance were growing in the first half of last year. However, this trend was reversed when Russia blocked the scheme of extremely lucrative manipulations in the re-export of Russian petroleum products by Belarus and when the demand for potassium fertilisers fell on the global market. It became clear once again that the outdated Belarusian model of a centrally planned economy is unable to generate sustainable growth, and the Belarusian economy needs thorough structural reforms. Nevertheless, President Alyaksandr Lukashenka consistently continues to block any changes in the system and at the same time expects that the economic indicators this year will reach levels far beyond the possibilities of the Belarusian economy. Therefore, there is a risk that the Belarusian government may employ – as they used to do – instruments aimed at artificially stimulating domestic demand, including money creation. This may upset the relative stability of state finances, which the regime managed to achieve last year. The worst case scenario would see a repeat of what happened in 2011, when a serious financial crisis occurred, forcing Minsk to make concessions (including selling the national network of gas pipelines) to Moscow, its only real source of loans. It thus cannot be ruled out that also this time the only way to recover from the slump will be to receive additional loan support and energy subsidies from Russia at the expense of selling further strategic companies to Russian investors.

Commonalities and Differences in Labour Market Developments and Constraints in Different EU Regions. Factor Markets Working Paper No. 22, February 2012

This paper provides a detailed overview of the differences across EU member states’ labour markets, through the extensive use of descriptive statistics. The objective is two-fold: firstly, it identifies the commonalities and differences in rural labour markets across EU regions and their developments, with special regard to agriculture, and secondly it emphasises the constraints that may hinder the efficient functioning of labour markets. Therefore, the paper starts with a description of the main indicators in the general labour market theory, such as the structure of the population in terms of age and gender distribution, unemployment and activity rates, employment levels, quality of human capital, migration patterns, and so forth. Secondly, we focus on the differences among rural and urban areas to then look closely at the agricultural sector. The institutional framework in which labour market institutions operate is also included. Lastly, as an attempt to summarise the analysis and to classify the EU member states according to certain rural and specific agricultural indicators, cluster analysis is also employed. Policy implications include investment in human capital and vocational training, support to young farmers, promoting economic diversification and upgrading infrastructure, with special regard to the new member states and to the Southern parts of Europe.

Performance Indicators in Agricultural Financial Markets. Factor Markets Working Document No. 43, May 2013

This study attempts to develop performance indicators for the financial markets based on the findings in an earlier Factor Markets Working Paper (No. 33, “Agricultural credit market institutions: A comparison of selected European countries”) and on FADN (Farm Accountancy Data Network) data. Two indicators were developed. One measured the long-term economic sustainability of agricultural firms since the financial characteristics of the firms were perceived as important factors when rejecting a loan applicant. If the indicator works, it should show that a low value in this indicator is related to the performance in the financial markets. The second indicator was the loan-to-value (LTV), or debt-to-asset ratio, the reasoning behind this indicator is that low values can point to credit constraints, and in WP 33 we saw that the interviewed experts expected LTVs to be much higher than what is actually the case. We find that the first indicator can’t be used to measure the performance of the financial institutions, since we can’t show any relationship between the indicator and activities in the financial markets. However, the indicator is valuable for its measurement of the long-term financial sustainability of the agricultural sector, or of the firms. The loan-to-value indicator does imply that most countries would have room to increase the credit.

Benchmarking the Financial Sector in the Southern and Eastern Mediterranean Countries and Projecting 2030 Financial Sector Scenarios. MEDPRO Technical Report No. 31/March 2013

This paper aims at devising scenarios for the development of the financial system in the southern and eastern Mediterranean countries (SEMCs), for the 2030 horizon. The results of our simulations indicate that bank credit to the private sector, meta-efficiency and stock market turnover could reach at best 108%, 78% and 121%, respectively, if the SEMCs adopt the best practices in Europe. These scenarios are much higher than those of the present levels in the region but still lower than the best performers in Europe. More specifically, we find that improving the quality of institutions, increasing per capita GDP, opening further capital account and lowering inflation are needed to enable the financial system in the region to converge with those of Europe.

A Global Analysis of of Imperfect Competition in the Banking Systems and the Latest Israeli Regulation Dealing with Market Failures. ACES Working Paper No. 3, 2007

The high concentration of the banking sector is a cross-border phenomenon that has high impact on local and global economies. This paper's main goal is to analyze the factors that impact concentration in the banking systems around the globe. The innovation of this paper is that we combined economic, "economic environment", and culture variables as explanatory variables for this analysis. We found among other things that regulation in the banking system is helpful in order to keep it competitive. We also found that when the society has more individual values rather than collective ones, its banking sector is less concentrated. In the second part of the paper we focused on the Israeli case, showing that although recent indicators of the Israeli banking system indicate a higher level of concentration and lower level of competition, it seems that the recent trend is moving toward less concentration and higher competition.