9 resultados para last copy
em Universidad Politécnica de Madrid
Resumo:
During the last decade, wind energy has been the fastest growing renewable source of energy worldwide. Limited sources of fossil fuel in addition to the negative effects of greenhouse gas emissions on the environment have led many countries to support development of renewable energies such as wind energy. Spain as the fourth biggest producer of wind energy plays an important global role in wind industry. In this paper, some important factors in the rapid growth of wind energy in Spain such as policy design, industry and technology, economic environment and social acceptance have been studied. The objective of this study is to introduce a model based on the successful development of wind energy in Spain which can be implemented by other countries
Resumo:
En 1929 aparece el primer número de AA (L’architecture d’aujourd’hui), en 1932 existe un número-Monografía sobre los hermanos Perret, escrita por Pierre Vago, en 1946 se consolida como revista mensual y bajo la fundación de Andre Bloc. El primer número de AA que tengo en mi biblioteca es el número 34 (febrero-Marzo) de 1951. Mediante la lectura observada de una colección como AA, la determinación de unos capítulos representativos y la elección de imágenes de su tiempo se explican estos 57 años de arquitectura, cuyos resultados de un proceso temporal disfrutamos desde hace aproximadamente veinte años. A principio de los años cincuenta un grupo de jóvenes arquitectos, denso e intercomunicado en los congresos CIAM se propone situar la realidad de la arquitectura en los principios y realidades de su tiempo y de los que se intuyen futuro. Resultados de la Segunda Gran Guerra no son solo tragedias humanas sino gran investigación y desarrollo concretada industrialmente, enormes movimientos de personas en Europa y una sociedad enormemente optimista en USA, todo esto producirá las grandes transformaciones sociales de los 60’ y sus concreciones tecnológicas, políticas y desarrollo. Muchos arquitectos, publicaciones, concursos o decisiones políticas o privadas han producido el catalogo de arquitecturas de estos años, desde el CIAM IX hasta el POMPIDOU, desde la casa GEHRY hasta el KUNSTHAL, desde BRASILIA hasta SIDNEY, desde COPLEJIDAD Y CONTRADICCIÓN hasta DELIRIOS DE NY, desde OSAKA hasta MUNICH. En todas han existido un esfuerzo enorme por concretar la realidad de nuestras aspiraciones desde las puramente ideológicas de introspección social, hasta las concreciones de imagen directa. Varias líneas he abierto en mi proceso de investigación, las he llamado “anillos” porque todas estas líneas tienen similitud con los “anillos de crecimiento” de los árboles en cuanto a como se presentan en la estructura de formación y ha la cantidad de información no solo interna sino externa que aportan sobre la estructura árbol, su medio y la historia. Igual que podemos saber las temperaturas o las pluviometría que cubrieron Europa en la edad media solo estudiando los anillos de crecimiento de nuestro árboles (su grosor), de igual forma repasando LOS CONCURSOS y sus resultados que existieron en los últimos cincuenta años, podemos entender las aspiraciones y concreciones de las sociedades y sus arquitectos en este tiempo. Cuatro capítulos, los mas determinantes son los elegidos para dar cuerpo a una TESIS de tamaño capaz: Las ideas, el futuro, las referencias y el presente son los capítulos que de forma visual intentan explicar el fruto arquitectónico, sus aspiraciones y sus concreciones. Las ideas sin ninguna duda, pertenecen a los padres de nuestro tiempo, son las del Team X, la reflexión sobre lo perecedero, las realidades programáticas, densidades o lo publico-privado son solo planetas en el universo de sus ideas. El futuro lo trazaron aquellos que empezaron a investigar, concretar o reflexionar sobre la incidencia tanto de los procesos industriales con sus nuevos materiales como de las nuevas concreciones urbanas que los movimientos migratorios producirían en las ciudades. Las referencias son las bibliotecas de carácter informativo-visual que han generado nuestro inventario icónico. El presente son las imágenes de referencia de nuestro tiempo-mediático, no solo las produce un arquitecto (en este caso R.Koolhas), pero si que es verdad que en las imágenes arquitectónicas de OMA se concreta todo el catalogo de arquitecturas del presente. ENGLISH SUMMARY The fisrt AA (l´Architecture d´Aujourd´hui) issue was published in 1929, three years later, in 1932, a monographic issue on Perret brothers was written by Pierre Vago and in 1946 the magazine was strongly established as a monthly publication under the direction of André Bloc. The oldest copy I own on my bookshelves is nº 34 printed in February-March 1951. While carefully reading a collection such as AA we are able to extract representative chapters and images that can explain a linear process lasting 57 years of fruitful architectural production of which consequences we have been enjoying the past twenty years. In the early fifties a compact group of young architects linked by the CIAM congress decided to encompass architectural reality to the needs and principles of their time. Not only big human tragedies arose from the Second World War but also some of the fastest industrial inventions due to a powerful will to development, that altogether with european migrations and a high standard of optimism in the United States headed to the peak transformations of the sixties and their technological and political development. A bunch of architects, magazines and architectural competitions sided by political and private decisions produced the architectural catalogue of those years, from CIAM IX to the Pompidou art centre, from Gerhy´s house to the Kunsthal museum, from Brasilia to Sidney, from “Complexity and Contradiction“ to “Delirious NY” and from Osaka all the way to Munich. All of them carried a vast effort towards the concretion of will, from social introspection to a more effective development of images. Several paths run across my investigation, namely “the rings”, as they tend to behave as a growing structure like a tree trunk, providing internal and external information not only of the vegetal element but also of the environment and events crossing its time. In the same direction as we are able to predict the weather in the Middle Age by means of studying our forests, we can use the architectural competitions ant their results for the past fifty years to understand the will and ambitions of these developing societies and their architects. To give shape to a sizeable thesis the selected information has been packed in four chapters: Ideas, Future, References and Present, each of them structured as an Image bank visualizing the architectural product, its will and specific ambition. The first group, Ideas, is devoted entirely to the step-fathers of present architecture, with ideas that belong to TEAM X and embrace the reflection about the transitory, the programmatic reality, density or the public-private debate as wandering planets of their ideal universe. The second group is dedicated to a Future that was traced by those engaged on industrial processes and new material investigation together with some others exploring new urban concretions brought to existence by the pressure of the after war migrations. The third group, References, have been shaped as a stock-list containing all our iconic cross-references. The last group, Present, brings together the icons of this media-time we live in and not only those produced by one single architect (Rem Koolhaas) even if his production embodies all architectural references at the moment.
Resumo:
ATM, SDH or satellite have been used in the last century as the contribution network of Broadcasters. However the attractive price of IP networks is changing the infrastructure of these networks in the last decade. Nowadays, IP networks are widely used, but their characteristics do not offer the level of performance required to carry high quality video under certain circumstances. Data transmission is always subject to errors on line. In the case of streaming, correction is attempted at destination, while on transfer of files, retransmissions of information are conducted and a reliable copy of the file is obtained. In the latter case, reception time is penalized because of the low priority this type of traffic on the networks usually has. While in streaming, image quality is adapted to line speed, and line errors result in a decrease of quality at destination, in the file copy the difference between coding speed vs line speed and errors in transmission are reflected in an increase of transmission time. The way news or audiovisual programs are transferred from a remote office to the production centre depends on the time window and the type of line available; in many cases, it must be done in real time (streaming), with the resulting image degradation. The main purpose of this work is the workflow optimization and the image quality maximization, for that reason a transmission model for multimedia files adapted to JPEG2000, is described based on the combination of advantages of file transmission and those of streaming transmission, putting aside the disadvantages that these models have. The method is based on two patents and consists of the safe transfer of the headers and data considered to be vital for reproduction. Aside, the rest of the data is sent by streaming, being able to carry out recuperation operations and error concealment. Using this model, image quality is maximized according to the time window. In this paper, we will first give a briefest overview of the broadcasters requirements and the solutions with IP networks. We will then focus on a different solution for video file transfer. We will take the example of a broadcast center with mobile units (unidirectional video link) and regional headends (bidirectional link), and we will also present a video file transfer file method that satisfies the broadcaster requirements.
Resumo:
We have analysed the geochemical (element analysis), mineralogical and sedimentary facies to characterize the sedimentary record in Fuentillejo maar-lake in the central Spanish volcanic field of Campo de Calatrava and thus be able to reconstruct the cyclicity of the sedimentary and paleoclimatic processes involved. The upper 20 m of core FUENT-1 show variations in clastic input and water chemistry in the lake throughout the last 50 ka cal BP. Being a closed system, the water level in this maar-lake depends primarily on the balance between precipitation and evaporation
Resumo:
An online open access test (CREAX self-assessment) has been used in this work so that students from degrees in engineering in the Universidad Polite¿cnica of Madrid (UPM) could self-assess their creative competence after several classroom activities. Different groups from the first year course have been statistically compared using data from their assessment. These first year students had different professors in the subject ?Technical Drawing? and belonged to several degrees in the UPM. They were as well compared regarding sex and a group of first year students was also compared to another last year group of the degree so as to observe possible differences in the achievement of this competence. Only one difference was detected concerning sex in one of the degrees. Among degrees, the higher marks obtained by students who had done specific exercises for the development of creativity in class is highlighted. Finally, a significantly high mark was observed in students during their last year of degree with respect to first year students. The tool CREAX has become very useful in the assessment of this competence in the UPM degrees in which it has been implemented.
Resumo:
We reconstructed vegetation responses to climate oscillations, fire and human activities since the last glacial maximum in inland NW Iberia, where previous paleoecological research is scarce. Extremely sparse and open vegetation composed of steppic grasslands and heathlands with scattered pioneer trees suggests very cold and dry conditions during the Oldest Dryas, unsuitable for tree survival in the surroundings of the study site. Slight woodland expansion during the Bolling/Allerod was interrupted by the Younger Dryas cooling. Pinewoods dominated for most of the early Holocene, when a marked increase in fire activity occurred. Deciduous trees expanded later reaching their maximum representation during the mid-Holocene. Enhanced fire activity and the presence of coprophilous fungi around 6400-6000 cal yr BP suggest an early human occupation around the site. However, extensive deforestation only started at 4500 calyrBP, when fire was used to clear the tree canopy. Final replacement of woodlands with heathlands, grasslands and cereal crops occurred from 2700 cal yr BP onwards due to land-use intensification. Our paleoecological record can help efforts aimed at restoring the natural vegetation by indicating which communities were dominant at the onset of heavy human impact, thus promoting the recovery of currently rare oak and alder stands.
Resumo:
To further develop Integrated Pest Management (IPM) strategies against crop pests, it is important to evaluate the effects of insecticides on biological control agents. Therefore, we tested the toxicity and sublethal effects (fecundity and fertility) of flonicamid, flubendiamide, metaflumizone, spirotetramat, sulfoxaflor and deltamethrin on the natural enemies Chrysoperla carnea and Adalia bipunctata. The side effects of the active ingredients of the insecticides were evaluated with residual contact tests for the larvae and adults of these predators in the laboratory. Flonicamid, flubendiamide, metaflumizone and spirotetramat were innocuous to last instar larvae and adults of C. carnea and A. bipunctata. Sulfoxaflor was slightly toxic to adults of C. carnea and was highly toxic to the L4 larvae of A. bipunctata. For A. bipunctata, sulfoxaflor and deltamethrin were the most damaging compounds with a cumulative larval mortality of 100%. Deltamethrin was also the most toxic compound to larvae and adults of C. carnea. In accordance with the results obtained, the compounds flonicamid, flubendiamide, metaflumizone and spirotetramat might be incorporated into IPM programs in combination with these natural enemies for the control of particular greenhouse pests. Nevertheless, the use of sulfoxaflor and deltamethrin in IPM strategies should be taken into consideration when releasing either of these biological control agents, due to the toxic behavior observed under laboratory conditions. The need for developing sustainable approaches to combine the use of these insecticides and natural enemies within an IPM framework is discussed.
Resumo:
El capítulo 1 de esta tesis doctoral describe conceptos relativos a la ontología y a la arquitectura como, por ejemplo, la cuestión de “El lugar” o “Basho” o el espacio visto desde un punto de vista filosófico. En este capítulo se examinan las diferencias y similitudes entre la ideología oriental y la filosofía de occidente a lo largo de la historia y se esbozan los puntos comunes entre ambas en cuestiones que atañen al habitar. En el capítulo 2, estos conceptos se enumeran y ordenan y se extraen diferentes conclusiones en cuanto a la percepción de valores como el espacio o el vacío, fundamentales para entender la arquitectura y el paisaje en las culturas de Oriente y Occidente. El capítulo 3 describe el paisaje oriental y el jardín chino a modo de prólogo del de Japón. Este capítulo introduce al lector en la historia del jardín y explica las transformaciones que éste ha sufrido a lo largo de la historia de China. El capítulo 4 es una asimilación de los conceptos examinados en los capítulos 1,2 y 3 y en él se analizan los aspectos compositivos fundamentales del jardín chino y sus elementos como, por ejemplo, el centro, el límite, el agua o la montaña. El capítulo 5 consiste en una introducción al paisaje japonés que comienza con el estudio de su geografía, su lengua, su literatura y sus períodos históricos más importantes previos a la era moderna: la era primitiva “Jomon”, la era “Yayoi”, los tres Shogunatos y la Revolución Meiji. La segunda parte del capítulo 5 describe los jardines japoneses a lo largo de la historia tales como el jardín Karesansui, los jardines de Kioto o el arte del jardín Tatebana, entre otros. El capítulo 6 comienza con una copia del texto medieval japonés, “HOJOKI”. Al igual que en los capítulos 2 y 4, en el capítulo 6 se extraen los valores del capítulo anterior, esta vez, mediante un comentario de texto. En esencia, este libro demuestra la importancia de la “cabaña en la naturaleza” para la cultura japonesa, así como la relación del espacio doméstico y el jardín a lo largo de su historia. El capítulo 7 describe la evolución del paisaje de la ciudad china en paralelo a la evolución del paisaje urbano japonés que se desarrolla en el capítulo 9. El capítulo 8 es un nexo de unión entre los capítulos 7 y 9 puesto que explica las influencias paisajísticas y urbanas mutuas entre las culturas china y japonesa a lo largo de la historia como es el caso del trazado de las antiguas ciudades capitales chinas y japonesas o el de los paisajes y urbes proyectados sobre la topografía de Manchuria durante la ocupación japonesa de China. El capítulo 9 describe el paisaje japonés moderno, sus ciudades y sus paisajes interurbanos como, por ejemplo, el Tokai-do. A continuación describe la evolución de la arquitectura y el jardín japonés a lo largo del siglo XX, los principales movimientos de vanguardia, las circunstancias económicas que llevaron al país a la crisis de los 90 y la lenta recuperación económica posterior. Por último, este capítulo explica la destrucción del paisaje del norte tras El Gran Terremoto del Este del 2011 y su recuperación a corto plazo. El capítulo 10 se compone de tres entrevistas a tres figuras relevantes del mundo académico y de la arquitectura japonesa. Algunos de los temas que exponen son la arquitectura doméstica japonesa, el jardín y la naturaleza de esta cultura, la situación de la ciudad de Tokio o el rol del arquitecto en la sociedad contemporánea, entre otros. Además de estas cuestiones, se debate acerca de los recursos y la recuperación del país tras El Gran Terremoto del Este de Japón. Finalmente, el capítulo 11 consiste en un estudio en profundidad acerca del paisaje de la ciudad de Tokio y el espacio doméstico y el jardín en base a los conceptos estudiados en los capítulos 1 y 2 y en relación a los valores paisajísticos vistos en los capítulos 3,4,5 y 6, además de los temas urbanos y topográficos estudiados en los capítulos 7,8,9 y 10. En este capítulo se estudia la figura del sujeto individual y colectivo, el refugio, el jardín, las acciones urbanas del Machizukuri, el parque y la morfología y evolución de los barrios centrales de Tokio y sus espacios domésticos y parques y jardines vistos a través de los datos estadísticos proporcionados por el gobierno. Además, el texto estudia un total de 21 casos seleccionados y analizados a través de la comparación de cerca de 800 viviendas domésticas publicadas entre 1991 y 2011 en las revistas de gran prestigio nacional e internacional, Shinkenchiku Jutakutokushu y GA Houses. Tras el análisis de los casos de estudio, se extraen una serie de conclusiones y clasificaciones del jardín en el espacio doméstico del centro de Tokio en dicho periodo. Los últimos tres capítulos de la tesis doctoral se dividen en: una traducción al inglés del resumen y las conclusiones más importantes del capítulo 11 (capítulo 12) una conclusión y resumen homólogos en japonés (capítulo 13) y un cuaderno de dibujos a mano realizado por la autora sobre especies botánicas naturalizadas domésticas de la ciudad de Tokio (capítulo 14) ABSTRACT Chapter 1 of this Ph.D. thesis describes concepts related to ontology and architecture like the issue of “The place” in Japan, or “The space” as seen from a philosophic point of view. In this chapter, the differences between the essential ancient Asian ideology and the philosophical contemporary thought of the East are discussed, and at the same time the transcendental thought coming from the West is analysed and compared to both of them. In Chapter 2 these concepts are analysed specifically in the field of “inhabiting the domestic space” and the text fathoms the common points between Eastern and Western thought relating to the house and the garden. Chapter 3 describes the oriental landscape and garden of China as a prologue to that of Japan. This chapter starts with a brief description of the history of the garden in the East and the West and introduces the reader into the geography and changes that have taken place in China since the birth of its culture. Chapter 4 entails a brief assimilation of what has been deduced from chapters 1, 2 and 3. In this chapter the compositive and design aspects of the Chinese garden are described, aspects such as centre, limit, the element of the mountain, emptiness, water, and vision or the theatre. Chapter 5 is an introduction to the history of landscape and architecture in Japan that starts with a geographical insight into the country and with a short summary about the language, the primitive “Jomon” culture, the “Yayoi” era , the three Shogunates.and the Meiji Revolution. In the second part of chapter 5, the text describes Japanese gardens throughout history, for example the Karesansui garden, the history of Kyoto and its gardens, the garden in relationship with art and with Japanese literature or the art of Tatebana. Chapter 6 starts with a copy of the medieval text “HOJOKI” and discusses issues such as the meaning of “the hut in the nature” for Japanese culture and its relationship with the domestic space and the garden. Chapter 7 discusses the development of cities in the landscape in Chinese culture in parallel with an observation of the evolution of cities in Japanese culture and landscape. Chapter 8 is the crux of the Ph.D. research as it explains the mutual influences of landscape, urban planning, construction and architecture between Japan in China. Chapter 9 describes the Japanese urban planning since the very first urban developments and develops a study on the evolution of the Japanese cities and roads (like the Tokai-do) in the landscape. Also, it describes the reconstruction of the cities of Japan after the Second World War, the cultural vanguard movements, the economical circumstances that led to the Japan´ s economic crisis of the 90´s and the slow recovery of its economy. Also, at the end of this chapter, the text analyses the event of the Great East Japan Earthquake of 211. Chapter 10 of this Ph.D. research is composed of a number of interviews with architects and professors about architecture, nature in the domestic space, the role of the architect nowadays in addition to facts about energy and about the Great East Japan Earthquake . Finally, chapter 11 consists of a deep study concerning the current situation in the city of Tokyo and the relationship between its domestic spaces (dwellings) and gardens based on the philosophical values studied in chapters 1 and 2, aswell as the landscape values of the garden studied in chapters 3,4,5, and 6 plus the information about the cities in the landscape studied in chapters 7,8, 9 and 10. In this chapter the main goal is to study the human being, the refuge, the garden, the urban planning actions of Machizukuri, the park and the morphology and evolution of the central quarters of Tokyo and of its domestic spaces and parks seen through the statistical data provided by the Japanese government in the last decades. Also, the text provides a study on 21 cases selected and analysed through the comparison of around 800 domestic spaces designed in between 1991 and 2011 and published in “Shinkenchiku Jutakutokushu” and “GA Houses” magazines. After these study cases, a number of conclusions are developed and also a classification of the domestic garden in the center of Tokyo. The last three chapters of this Ph.D. work are divided in: the translation to English of the summary and main conclusions of chapter 11 of the research in Chapter 12, the translation to Japanese of the summary and main conclusions of chapter 11 of the research in Chapter 13, and a collection of hand-drawings done by the author about the botanical species found in the gardens of the domestic realms of Tokyo in Chapter 14.
Resumo:
He largest proportion of illiteracy and lack of access to education in the world is concentrated in rural areas; therefore it is important to ensure there is access to quality education in these spots. This challenge is assumed by different branches of social research and it is reflected within the publication of articles in scientific journals. In the present document the scientific discourse surrounding the theme of rural education during the last decade was analyzed. To do this, the paper focuses on three aspects: the countries that set the agenda, the geographical areas that represent most of the attention and the prevalent themes within continents. It was observed that USA was the most productive country in terms of scientific writings with 30%; that Asia is really interested in health issues associated to rural education; that in Europe gender issues are on the table and that the African and Asian continents, as well as Latin America, are interested only on their own issues, as 100% of the times they only wrote about themselves.