Microprocesos láser para la mejora de dispositivos fotovoltaicos basados en silicio cristalino

En los últimos años la tecnología láser se ha convertido en una herramienta imprescindible en la fabricación de dispositivos fotovoltaicos, ayudando a la consecución de dos objetivos claves para que esta opción energética se convierta en una alternativa viable: reducción de costes de fabricación y aumento de eficiencia de dispositivo. Dentro de las tecnologías fotovoltaicas, las basadas en silicio cristalino (c-Si) siguen siendo las dominantes en el mercado, y en la actualidad los esfuerzos científicos en este campo se encaminan fundamentalmente a conseguir células de mayor eficiencia a un menor coste encontrándose, como se comentaba anteriormente, que gran parte de las soluciones pueden venir de la mano de una mayor utilización de tecnología láser en la fabricación de los mismos. En este contexto, esta Tesis hace un estudio completo y desarrolla, hasta su aplicación en dispositivo final, tres procesos láser específicos para la optimización de dispositivos fotovoltaicos de alta eficiencia basados en silicio. Dichos procesos tienen como finalidad la mejora de los contactos frontal y posterior de células fotovoltaicas basadas en c-Si con vistas a mejorar su eficiencia eléctrica y reducir el coste de producción de las mismas. En concreto, para el contacto frontal se han desarrollado soluciones innovadoras basadas en el empleo de tecnología láser en la metalización y en la fabricación de emisores selectivos puntuales basados en técnicas de dopado con láser, mientras que para el contacto posterior se ha trabajado en el desarrollo de procesos de contacto puntual con láser para la mejora de la pasivación del dispositivo. La consecución de dichos objetivos ha llevado aparejado el alcanzar una serie de hitos que se resumen continuación: - Entender el impacto de la interacción del láser con los distintos materiales empleados en el dispositivo y su influencia sobre las prestaciones del mismo, identificando los efectos dañinos e intentar mitigarlos en lo posible. - Desarrollar procesos láser que sean compatibles con los dispositivos que admiten poca afectación térmica en el proceso de fabricación (procesos a baja temperatura), como los dispositivos de heterounión. - Desarrollar de forma concreta procesos, completamente parametrizados, de definición de dopado selectivo con láser, contactos puntuales con láser y metalización mediante técnicas de transferencia de material inducida por láser. - Definir tales procesos de forma que reduzcan la complejidad de la fabricación del dispositivo y que sean de fácil integración en una línea de producción. - Mejorar las técnicas de caracterización empleadas para verificar la calidad de los procesos, para lo que ha sido necesario adaptar específicamente técnicas de caracterización de considerable complejidad. - Demostrar su viabilidad en dispositivo final. Como se detalla en el trabajo, la consecución de estos hitos en el marco de desarrollo de esta Tesis ha permitido contribuir a la fabricación de los primeros dispositivos fotovoltaicos en España que incorporan estos conceptos avanzados y, en el caso de la tecnología de dopado con láser, ha permitido hacer avances completamente novedosos a nivel mundial. Asimismo los conceptos propuestos de metalización con láser abren vías, completamente originales, para la mejora de los dispositivos considerados. Por último decir que este trabajo ha sido posible por una colaboración muy estrecha entre el Centro Láser de la UPM, en el que la autora desarrolla su labor, y el Grupo de Investigación en Micro y Nanotecnologías de la Universidad Politécnica de Cataluña, encargado de la preparación y puesta a punto de las muestras y del desarrollo de algunos procesos láser para comparación. También cabe destacar la contribución de del Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, CIEMAT, en la preparación de experimentos específicos de gran importancia en el desarrollo del trabajo. Dichas colaboraciones se han desarrollado en el marco de varios proyectos, tales como el proyecto singular estratégico PSE-MICROSIL08 (PSE-iv 120000-2006-6), el proyecto INNDISOL (IPT-420000-2010-6), ambos financiados por el Fondo Europeo de Desarrollo Regional FEDER (UE) “Una manera de hacer Europa” y el MICINN, y el proyecto del Plan Nacional AMIC (ENE2010-21384-C04-02), cuya financiación ha permitido en gran parte llevar a término este trabajo. v ABSTRACT. Last years lasers have become a fundamental tool in the photovoltaic (PV) industry, helping this technology to achieve two major goals: cost reduction and efficiency improvement. Among the present PV technologies, crystalline silicon (c-Si) maintains a clear market supremacy and, in this particular field, the technological efforts are focussing into the improvement of the device efficiency using different approaches (reducing for instance the electrical or optical losses in the device) and the cost reduction in the device fabrication (using less silicon in the final device or implementing more cost effective production steps). In both approaches lasers appear ideally suited tools to achieve the desired success. In this context, this work makes a comprehensive study and develops, until their implementation in a final device, three specific laser processes designed for the optimization of high efficiency PV devices based in c-Si. Those processes are intended to improve the front and back contact of the considered solar cells in order to reduce the production costs and to improve the device efficiency. In particular, to improve the front contact, this work has developed innovative solutions using lasers as fundamental processing tools to metalize, using laser induced forward transfer techniques, and to create local selective emitters by means of laser doping techniques. On the other side, and for the back contact, and approached based in the optimization of standard laser fired contact formation has been envisaged. To achieve these fundamental goals, a number of milestones have been reached in the development of this work, namely: - To understand the basics of the laser-matter interaction physics in the considered processes, in order to preserve the functionality of the irradiated materials. - To develop laser processes fully compatible with low temperature device concepts (as it is the case of heterojunction solar cells). - In particular, to parameterize completely processes of laser doping, laser fired contacts and metallization via laser transfer of material. - To define such a processes in such a way that their final industrial implementation could be a real option. - To improve widely used characterization techniques in order to be applied to the study of these particular processes. - To probe their viability in a final PV device. Finally, the achievement of these milestones has brought as a consequence the fabrication of the first devices in Spain incorporating these concepts. In particular, the developments achieved in laser doping, are relevant not only for the Spanish science but in a general international context, with the introduction of really innovative concepts as local selective emitters. Finally, the advances reached in the laser metallization approached presented in this work open the door to future developments, fully innovative, in the field of PV industrial metallization techniques. This work was made possible by a very close collaboration between the Laser Center of the UPM, in which the author develops his work, and the Research Group of Micro y Nanotecnology of the Universidad Politécnica de Cataluña, in charge of the preparation and development of samples and the assessment of some laser processes for comparison. As well is important to remark the collaboration of the Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, CIEMAT, in the preparation of specific experiments of great importance in the development of the work. These collaborations have been developed within the framework of various projects such as the PSE-MICROSIL08 (PSE-120000-2006-6), the project INNDISOL (IPT-420000-2010-6), both funded by the Fondo Europeo de Desarrollo Regional FEDER (UE) “Una manera de hacer Europa” and the MICINN, and the project AMIC (ENE2010-21384-C04-02), whose funding has largely allowed to complete this work.

UER technique: conceptualisation for agent oriented development

The problem of conceptualisation is the first step towards the identication of the functional requirements of a system. This article proposes two extensions of well-known object oriented techniques: UER (User-Environment-Responsibility) technique and enhanced CRC (Class-ResponsibilityCollaboration) cards. UER technique consists of (a) looking for the users of systems and describing the ways the system is used; (b) looking for the objects of the environment and describing the possible interactions; and (c) looking for the general requirements or goals of the system, the actions that it should carry out without explicit interaction. The enhanced CRC cards together with the internal use cases technique is used for dening collaborations between agents. These techniques can be easily integrated in UML (Unied Modelling Language) [2], dening the new notation symbols as stereotypes.

Methodology for the design of offshore wind farms

Although still in an early stage, offshore wind development is now characterized by a boom process. This leads to the necessity of applying an integral management model for the design of offshore wind facilities, being the purpose of the model to achieve technical, economical and environmental viability, all within a sustainable development framework. The foregoing led to the research project exposed in this paper, consisting of drawing up an offshore wind farms methodological proposal; this methodology has a global and/or general nature or point of view whilst searching for optimization of the overall process of operations leading to the design of this type of installations and establishing collated theoretical bases for the further development of management tools. This methodological proposal follows a classical engineering thought scheme: it begins with the alternatives study, and ends with the detailed design. With this in mind, the paper includes the following sections: introduction, methodology used for the research project, conditioning factors, methodological proposal for the design of offshore wind farms, checking the methodological proposal, and conclusions

A comparative analysis of ABE Bachelor of Science programs in European and US Universities.

European Universities are involved in series of great changes regarding teaching and education organization during the last few years. The origin of these changes is the creation of the so-called European Higher Education Area (EHEA), which main target is to harmonize the different University studies throughout Europe. As a consequence, most of the programs of studies in all degrees are suffering changes in order to converge to common structures. Taking advantage of the actual process, some European universities are moving from traditional Agricultural Engineering programs to a more wide discipline named recently as Biosystems Engineering, which is a science- based engineering discipline that integrates engineering science and design with applied biological, environmental and agricultural sciences, broadening in this way the area of application of Engineering sciences not strictly to agricultural sciences, but to the biologic al sciences in general, including the agricultural sciences. This paper presents a comparative study of different Bachelor of Science degrees offered by American and European Universities in the field of Agricultural/Biosystems Engineering. To carry out the analysis 40 programs accredited by ABET in American Universities and 50 European programs. Among other questions, the total number of credits, the number of semesters, the kind of modules and the distribution of subjects in groups (Basic Sciences, Engineering Fundamentals, Agricultural/Biological Sciences, Humanities & Economic Sciences, Applied Agricultural/Biological Engineering and electives) are discussed in the paper. The information provided can be an useful starting point in future definitions of new or renewed degrees with the aim of advancing in internationalization of the programs and helping student’s mobility.

One or two poles of attraction in the international technological cooperation process?

In recent years, international cooperation processes have become a key mechanism for companies to internationalise their innovative activities, par ticularly in the case of small businesses whose size reduces their possibilities of developing internationalisation strategies autonomously in the same way as larger companies. In Spain, the existence of two parallel programmes with similar structures oriented towards Europe (EUREKA) and Latin America (IBEROEKA) raises the question as to whether the fact that companies participate in only one (unipolar) or both (bipolar) of these programmes is the result of a selection process, which, in turn, results in the existence of different collectives with different efficiency parameters. The aim of this study is to provide a comparative analysis based on the final reports of Spanish companies that have participated in the EUREKA programme. Two groups of companies were compared: one comprising companies that have only had international experience in Europe (EUREKA); and another formed by companies that have also carried out IBEROEKA projects. The conclusions confirm that the behaviour of both groups of companies differs substantially and reveal the importance of geographical perspective in the analysis of international cooperation in technology. This disparate behaviour is a relevant aspect that must be taken into account when designing policies to promote international technological cooperation.

A comparative study on unconstrained hand biometrics

Biometrics applied to mobile devices are of great interest for security applications. Daily scenarios can benefit of a combination of both the most secure systems and most simple and extended devices. This document presents a hand biometric system oriented to mobile devices, proposing a non-intrusive, contact-less acquisition process where final users should take a picture of their hand in free-space with a mobile device without removals of rings, bracelets or watches. The main contribution of this paper is threefold: firstly, a feature extraction method is proposed, providing invariant hand measurements to previous changes; second contribution consists of providing a template creation based on hand geometric distances, requiring information from only one individual, without considering data from the rest of individuals within the database; finally, a proposal for template matching is proposed, minimizing the intra-class similarity and maximizing the inter-class likeliness. The proposed method is evaluated using three publicly available contact-less, platform-free databases. In addition, the results obtained with these databases will be compared to the results provided by two competitive pattern recognition techniques, namely Support Vector Machines (SVM) and k-Nearest Neighbour, often employed within the literature. Therefore, this approach provides an appropriate solution to adapt hand biometrics to mobile devices, with an accurate results and a non-intrusive acquisition procedure which increases the overall acceptance from the final user.

The history of technology in education. A comparative study and forecast

Area, launched in 1999 with the Bologna Declaration, has bestowed such a magnitude and unprecedented agility to the transformation process undertaken by European universities. However, the change has been more profound and drastic with regards to the use of new technologies both inside and outside the classroom. This article focuses on the study and analysis of the technology’s history within the university education and its impact on teachers, students and teaching methods. All the elements that have been significant and innovative throughout the history inside the teaching process have been analyzed, from the use of blackboard and chalk during lectures, the use of slide projectors and transparent slides, to the use of electronic whiteboards and Internet nowadays. The study is complemented with two types of surveys that have been performed among teachers and students during the school years 1999 - 2011 in the School of Civil Engineering at the Polytechnic University of Madrid. The pros and cons of each of the techniques and methodologies used in the learning process over the last decades are described, unfolding how they have affected the teacher, who has evolved from writing on a whiteboard to project onto a screen, the student, who has evolved from taking handwritten notes to download information or search the Internet, and the educational process, that has evolved from the lecture to acollaborative learning and project-based learning. It is unknown how the process of learning will evolve in the future, but we do know the consequences that some of the multimedia technologies are having on teachers, students and the learning process. It is our goal as teachers to keep ourselves up to date, in order to offer the student adequate technical content, while providing proper motivation through the use of new technologies. The study provides a forecast in the evolution of multimedia within the classroom and the renewal of the education process, which in our view, will set the basis for future learning process within the context of this new interactive era.

A general implementation framework for tabled CLP

This paper describes a framework to combine tabling evalua- tion and constraint logic programming (TCLP). While this combination has been studied previously from a theoretical point of view and some implementations exist, they either suffer from a lack of efficiency, flex- ibility, or generality, or have inherent limitations with respect to the programs they can execute to completion (either with success or fail- ure). Our framework addresses these issues directly, including the ability to check for answer / call entailment, which allows it to terminate in more cases than other approaches. The proposed framework is experimentally compared with existing solutions in order to provide evidence of the mentioned advantages.

Predicting academic performance with learning analytics in virtual learning environments: A comparative study of three interaction classifications

Learning analytics is the analysis of static and dynamic data extracted from virtual learning environments, in order to understand and optimize the learning process. Generally, this dynamic data is generated by the interactions which take place in the virtual learning environment. At the present time, many implementations for grouping of data have been proposed, but there is no consensus yet on which interactions and groups must be measured and analyzed. There is also no agreement on what is the influence of these interactions, if any, on learning outcomes, academic performance or student success. This study presents three different extant interaction typologies in e-learning and analyzes the relation of their components with students? academic performance. The three different classifications are based on the agents involved in the learning process, the frequency of use and the participation mode, respectively. The main findings from the research are: a) that agent-based classifications offer a better explanation of student academic performance; b) that at least one component in each typology predicts academic performance; and c) that student-teacher and student-student, evaluating students, and active interactions, respectively, have a significant impact on academic performance, while the other interaction types are not significantly related to academic performance.

Comparative characterization of dietary fibre-Enriched Frozen/thawed mashed potatoes

The potential use of commercial fibres (pea fibre, inulin, and their blends), as fibre-enriching agents in frozen/thawed mashed potatoes was reported. Pea fibre and inulin supplementations conferred hardness and softness to the product, respectively. Differences were attributed to the relationship of the fibre with the potato starch matrix. The association of pea fibre at low concentration (<15 g/kg mashed potatoes) and inulin at high concentration (>45 g/kg) is strongly encouraged to fortify the diet without promoting negative effects on textural and rheological properties of frozen/thawed mashed potatoes or colour and overall acceptability of the resulting products.

Comparative analysis of passenger transport sustainability in European cities

Sustainable development in its three dimensions – economic, social and environmental – has become a major concern on an international scale. The problem is global, but must be solved locally. Most of the world’s population lives in cities that act as centres of economic growth and productivity, but which – if they develop in the wrong direction – can cause social inequalities, or irreversibly harm the environment. Urban transport causes a number of negative impacts that can affect sustainability targets. The objective of this study is to propose an analysis of sustainability of urban passenger transport systems based on available indicators in most cities. This will serve to benchmark the practices of different cities and manage their transport systems. This work involves the creation of composite indicators (CI) to measure the sustainability of urban passenger transport systems. The methodology is applied to 23 European cities. The indicators are based on a benchmarking approach, and the evaluation of each aspect in each case therefore depends on the performance of the whole sample. The CI enabled us to identify which characteristics have the greatest influence on the sustainability of a city’s transport system, and to establish transport policies that could potentially improve its shortcomings. Finally, the cities are clustered according to the values obtained from the CIs, and thus according to the weaknesses and strengths of their transport systems.

Soft Skills: A Comparative Analysis Between Online and Classroom Teaching

Currently the Spanish universities are making a great effort to effectively incorporate the development and assessment of generic skills in their training programs. Information and communications technologies (ICT) offer a wide range of possibilities but create uncertainty among teachers about the process and results. It is considered of interest to conduct a study to analyze the extent to which social skills like commitment, communication and teamwork are acquired by students and teachers. It seeks to ascertain the influence of the learning context, online or classroom training, in the development of these personal skills among the participants in the sample. For this study two universities have been chosen, Universidad a Distancia de Madrid (UDIMA) offering online training environment, and Universidad Politécnica de Madrid (UPM) with classroom training modality. A total of 257 individuals, 230 students and 27 teachers have answered the survey called Evalsoft. This instrument was designed in the project with the same name by a research team from Universidad Complutense of Madrid (UCM). Some interesting conclusions can be highlighted: it is in the online context where there are higher levels of commitment and teamwork than in the classroom modality; teachers have higher social skills that students and these improve with age. Sex and the training program appear to influence these social skills.

Contemporary eden: the transmigration of paradise tales, into edenic architectures today

This document proceeds from the research for my doctoral thesis titled This thesis is about the subject of Eden or paradise in architecture, to understand its concepts and be able to generate a general model to generate architecture that places us in a virtual way in paradisiacal places, in holidays as well as in daily life. It also seeks to build a system of measure to be used to turn into Eden the previously non “Edenic”. A comparative measuring system to know where we are in relation to how much Eden is present in places to intervene, or project. Eden; Tale, Image and Project. The zones of the thesis that are related to this congress are those related to the use of this tale, idea and image of the collective unconscious, when it comes to projecting a place that locates us physically, mentally and in our mood in paradise.

A Comparative Analysis of Hedging in a Corpus of Two Written Legal Discourse Genres

Esta tesis doctoral, que es la culminación de mis estudios de doctorado impartidos por el Departamento de Lingüística Aplicada a la Ciencia y a la Tecnología de la Universidad Politécnica de Madrid, aborda el análisis del uso de la matización (hedging) en el lenguaje legal inglés siguiendo los postulados y principios de la análisis crítica de género (Bhatia, 2004) y empleando las herramientas de análisis de córpora WordSmith Tools versión 6 (Scott, 2014). Como refleja el título, el estudio se centra en la descripción y en el análisis contrastivo de las variedades léxico-sintácticas de los matizadores del discurso (hedges) y las estrategias discursivas que con ellos se llevan a cabo, además de las funciones que éstas desempeñan en un corpus de sentencias del Tribunal Supremo de EE. UU., y de artículos jurídicos de investigación americanos, relacionando, en la medida posible, éstas con los rasgos determinantes de los dos géneros, desde una perspectiva socio-cognitiva. El elemento innovador que ofrece es que, a pesar de los numerosos estudios que se han podido realizar sobre los matizadores del discurso en el inglés general (Lakoff, 1973; Hübler, 1983; Clemen, 1997; Markkanen and Schröder, 1997; Mauranen, 1997; Fetzer 2010; y Finnegan, 2010 entre otros) académico (Crompton, 1997; Meyer, 1997; Skelton, 1997; Martín Butragueňo, 2003) científico (Hyland, 1996a, 1996c, 1998c, 2007; Grabe and Kaplan, 1997; Salager-Meyer, 1997 Varttala, 2001) médico (Prince, 1982; Salager-Meyer, 1994; Skelton, 1997), y, en menor medida el inglés legal (Toska, 2012), no existe ningún tipo de investigación que vincule los distintos usos de la matización a las características genéricas de las comunicaciones profesionales. Dentro del lenguaje legal, la matización confirma su dependencia tanto de las expectativas a macro-nivel de la comunidad de discurso, como de las intenciones a micro-nivel del escritor de la comunicación, variando en función de los propósitos comunicativos del género ya sean éstos educativos, pedagógicos, interpersonales u operativos. El estudio pone de relieve el uso predominante de los verbos modales epistémicos y de los verbos léxicos como matizadores del discurso, estos últimos divididos en cuatro tipos (Hyland 1998c; Palmer 1986, 1990, 2001) especulativos, citativos, deductivos y sensoriales. La realización léxico-sintáctica del matizador puede señalar una de cuatro estrategias discursivas particulares (Namsaraev, 1997; Salager-Meyer, 1994), la indeterminación, la despersonalización, la subjectivisación, o la matización camuflada (camouflage hedging), cuya incidencia y función varia según género. La identificación y cuantificación de los distintos matizadores y estrategias empleados en los diferentes géneros del discurso legal puede tener implicaciones pedagógicos para los estudiantes de derecho no nativos que tienen que demostrar una competencia adecuada en su uso y procesamiento. ABSTRACT This doctoral thesis, which represents the culmination of my doctoral studies undertaken in the Department of Linguistics Applied to Science and Technology of the Universidad Politécnica de Madrid, focusses on the analysis of hedging in legal English following the principles of Critical Genre Analysis (Bhatia, 2004), and using WordSmith Tools version 6 (Scott, 2014) corpus analysis tools. As the title suggests, this study centers on the description and contrastive analysis of lexico-grammatical realizations of hedges and the discourse strategies which they can indicate, as well as the functions they can carry out, in a corpus of U.S. Supreme Court opinions and American law review articles. The study relates realization, incidence and function of hedging to the predominant generic characteristics of the two genres from a socio-cognitive perspective. While there have been numerous studies on hedging in general English (Lakoff, 1973; Hübler, 1983; Clemen, 1997; Markkanen and Schröder, 1997; Mauranen, 1997; Fetzer 2010; and Finnegan, 2010 among others) academic English (Crompton, 1997; Meyer, 1997; Skelton, 1997; Martín Butragueňo, 2003) scientific English (Hyland, 1996a, 1996c, 1998c, 2007; Grabe and Kaplan, 1997; Salager-Meyer, 1997 Varttala, 2001) medical English (Prince, 1982; Salager-Meyer, 1994; Skelton, 1997), and, to a lesser degree, legal English (Toska, 2012), this study is innovative in that it links the different realizations and functions of hedging to the generic characteristics of a particular professional communication. Within legal English, hedging has been found to depend on not only the macro-level expectations of the discourse community for a specific genre, but also on the micro-level intentions of the author of a communication, varying according to the educational, pedagogical, interpersonal or operative purposes the genre may have. The study highlights the predominance of epistemic modal verbs and lexical verbs as hedges, dividing the latter into four types (Hyland, 1998c; Palmer, 1986, 1990, 2001): speculative, quotative, deductive and sensorial. Lexical-grammatical realizations of hedges can signal one of four discourse strategies (Namsaraev, 1997; Salager-Meyer, 1994), indetermination, depersonalization, subjectivization and camouflage hedging, as well as fulfill a variety of functions. The identification and quantification of the different hedges and hedging strategies and functions in the two genres may have pedagogical implications for non-native law students who must demonstrate adequate competence in the production and interpretation of hedged discourse.

Fernando García Mercadal y el Movimiento Moderno

La tesis plantea el estudio de la figura de Fernando García Mercadal (1896- 1985) y su obra, en el contexto del proyecto moderno perteneciente a la racionalidad teórica colectiva de la segunda generación del Movimiento Moderno en Europa, y explora la vida y circunstancias de un arquitecto que aunque nacido en el XIX, trajo la modernidad a España. El Movimiento Moderno en España, se articula en las décadas de los años 20 y 30 a través del GATEPAC y un grupo de arquitectos racionalistas en Madrid que Carlos Flores denomina Generación del 1925. Fernando García Mercadal, primero de su promoción en 1921 y pensionado en Roma, pertenece a ambos y pronto se convierte junto con Josep Lluis Sert, en una de las figuras más relevantes del panorama moderno español. Único miembro fundador del GATEPAC que había nacido en el siglo XIX, publica habitualmente en la revista AC (1931-1937), y en la revista Arquitectura desde 1920. Organiza en la Residencia de Estudiantes, entre 1928 y 1932, un famoso ciclo de Conferencias que imparten Le Corbusier, Mendelsohn, Van Doesburg, Gropius y Giedion. También asiste a la reunión constituyente de los CIAM en La Sarraz en 1928, al CIAM II en Frankfurt en 1929 y al CIAM III en Bruselas en 1930. Fue profesor en la Escuela de Arquitectura de Madrid y Arquitecto Jefe de la Oficina de Urbanismo y de Parques y Jardines del Ayuntamiento de Madrid, cargo al que accede por oposición en 1932. Tras la guerra fue depurado e inhabilitado profesionalmente, hasta que en 1946 comienza a trabajar en el Departamento de Arquitectura del I.N.P. donde continúa hasta los años 70. En 1979 es nombrado Académico de número de la Real Academia de Bellas Artes de San Fernando y muere en Madrid en 1985. Estos son los datos conocidos y aunque en la tesis se aportan nuevos datos inéditos, es en las premisas para su interpretación donde este trabajo de investigación pone el acento. En la historiografía de nuestra arquitectura moderna, pervive una tendencia a suponer una desconexión entre la vanguardia arquitectónica en los años 20 y 30 y el movimiento moderno internacional. El manto de silencio que cayó sobre la generación anterior a la guerra, una vez terminada esta, contribuye a reforzar la idea, cuyo origen y causas exceden el ámbito de trabajo, aunque se tratarán tangencialmente por ser ineludible hacerlo. La tesis pone en cuestión ese planteamiento desde el convencimiento fundamentado en los datos y en la consulta de fuentes originales, que la arquitectura española anterior a la guerra, aun con las circunstancias particulares del país, estuvo en sintonía con la europea, siendo esta la hipótesis de partida de la investigación. Las aportaciones más significativas que, a mi entender, presenta la tesis doctoral, y tienen mayor originalidad, son las siguientes; 1.Puesta en valor de la arquitectura de FGM, antes y después de la guerra, abandonando la idea de su supuesta renuncia a las ideas modernas a partir de los 30; 2. Puesta en valor, con aportación de datos concretos, de la Intensa relación mantenida por FGM y otros arquitectos españoles del Movimiento Moderno con los arquitectos de igual tendencia en el resto de Europa, a través de contactos recíprocos y continuos; 3. Estudio de la obra de FGM en el marco del Movimiento Moderno como una nueva arquitectura basada no tanto en la epidermis, como en una forma de hacer y encarar los problemas donde el proceso es tan importante como el resultado; con el Urbanismo como una nueva ciencia, y con el desarrollo de nuevos programas funcionales acordes a las necesidades de la sociedad contemporánea como el Rincón de Goya y el Hospital de Zaragoza. Se manejan tres métodos de trabajo. Los dos primeros aportan un nuevo enfoque al análisis crítico de FGM y su obra, situándole en el contexto internacional, además del español. El tercero, de carácter instrumental, permite el manejo y sistematización de la documentación. El primer método, consiste en aplicar el criterio generacional de Pevsner o Giedion entre otros, al Movimiento Moderno en España, situando a Fernando García Mercadal como arquitecto de la segunda generación, para hacer un análisis crítico comparativo de su trayectoria con otros arquitectos europeos de la misma, que permita establecer semejanzas y diferencias. El segundo método, complementario al anterior, consiste en estudiar las relaciones internacionales de FGM con las figuras más próximas a él y sus posibles influencias. Por último, y en relación con la documentación de obras y proyectos, se manejan a su vez dos criterios. Para la obra completa, y debido a la inexistencia de originales del Legado García Mercadal, se utiliza con carácter general el material ya publicado, disperso en libros y revistas. En el caso de las cinco obras seleccionadas, se completa con búsqueda en archivos, toma de datos in situ actualizados cuando es posible, y una recopilación de su repercusión en prensa escrita de su momento. ABSTRACT This research study focuses on Fernando Garcia Mercadal (1896-1985) and his work in the context of the Modern project as part of the collective theoretical rationality of the second generation of European Modern architecture. It explores the life and circumstances of the architect, who even though born in 19th century introduced Modern architecture in Spain. Modern architecture (Modern Movement) in Spain covered two decades between 20's and 30's through GATEPAC and a group of rationalists in Madrid that Carlos Flores named “generation of '25”. Fernando Garcia Mercadal, top of his class in 1921 and granted with the scholarship in Rome, belonged to both groups and early in his career he became, along with Josep Lluis Sert, one of the most relevant figures of Modern Architecture in Spain. He was the only member of GATEPAC who was born in 19th century. He frequently published on the magazine “AC” (1931-1937) and on “Arquitecture” magazine since 1920. He organized a series of famous lectures at “Residencia de Estudiantes” (Madrid) between 1928 and 1932 in which Le Corbusier, Mendelsohn, Van Doesburg, Gropius or Giedion took part. He was a member of the constituent meeting of CIAM in La Sarraz in 1928, CIAM II in Frankfurt in 1929 and CIAM III in Brussels in 1930. Mercadal was a teacher at Escuela de Arquitectura de Madrid and the Chief of the Urban Planning, Parks and Gardens Office of the Council of Madrid. He earned his position by public examination in 1932. After the civil war he was disqualified professionally until 1946, when he started working at the Architecture Department at INP until 70's. In 1979 he was elected as an academic member of “Real Academia de Bellas Artes de San Fernando” and later died in 1985. These are the well-known facts and even though this research study provides unpublished facts, it focuses on the premises to interpret them. Throughout the historiographical discourse of Spanish Modern architecture there is a tendency to assume a disconnection between the Avant-garde architecture movements in 20's and 30's and International Modern architecture (Modern Movement). The generation preceding the war remained silent in regard to this issue and once the war was over, they contributed to support the disconnection. The origin and cause exceed the frame of this work, even though they are incidentally commented due to its importance. This research study questions the approach explained above, based on the facts and the original sources. Its first hypothesis states that Spanish architecture before the civil war was, under its own circumstances, in tune with European architecture. The most important and original contributions of this research study are the following under my point of view: 1. To highlight the architecture of FGM, before and after the war, leaving behind his reputed withdrawal of Modernity after 30's; 2. To highlight the intense relationship between FGM and other Modern Spanish architects and other European architects sharing the same ideas, providing detailed facts; 3. Study of FGM's work in the context of Modern architecture as a new architecture based on its know-how and the way problems are faced. The process is as important as the result, not so much based on the dermis; with urban planning as the new science and with the development of the new functional programs based on the needs of contemporary society as in Rincón de Goya or Hospital de Zaragoza. Three work methods are used. The first two add a new vision of the critical analysis related to FGM and his work, positioning him in the international context in addition to Spain. The third is used as an instrument to manage and systematize the documentation. The first method applies the generational criteria of Pevsner or Giedion (among others) to Modern architecture in Spain, positioning Fernando Garcia Mercadal as a second generation architect. A critical-comparative analysis of his career and contemporary European architects is made to establish similarities and differences. The second method is complementary to the previous one and studies the international relationships of FGM with other recognised architects that were close to him and their possible influences. At last, in relation to his works and projects, two methods are used. For the complete works, due to the lack of originals, published material found on magazines and books is used as the source. In the case of the five selected buildings, it is complemented with archive search, onsite data collection when possible and the impact on the press at that moment.