Infancia y experiencias de tracción en la obra de R. B. Fuller

Fuller explicitly connects his career with a childhood full of experiences marked by a merger between the biological and the cultural, constituting a major source of imagery, handled over his whole life. Childhood mobile games like the rope, kyte, swing, wheel, or balloon, all characterized by their dynamic condition, serve as narrative vehicles and provide a context to relate childhood, science and architectural design through an universal approach. We pose three elementary cathegories, in order to trace a genealogy of primary technical objects which operate under tension and mobility principles. Rescued experiences, notions and attitudes from Fuller?s childhood memories, refer to the experience of tension which, in clear contrast with traditional structural methods, which perpetuate the Euclidean, the stable, the massive and the compressive, promote multipolar, dynamic en the ephimeral.

Estudio sobre la utilización de los gestos técnicos en pelota valenciana en jugadores profesionales

Debido a la escasez de estudios de análisis en pelota valenciana, hemos centrado este estudio en este deporte. El objetivo de estudio ha sido analizar y cuantificar los tipos de golpeos, y comparar los mismos entre las posiciones de juego de resto y medio. Para ello se han llevado a cabo el análisis de 6 partidas de la XIX Liga Profesional de «escala i corda» 2009-2010, y en concreto de 12 jugadores, utilizando el software de análisis Sports Code v.8.5.2. Los resultados nos indican diferencias significativas (p<0.05) entre los golpeos efectuados por el jugador resto y el jugador medio en el rebote y rebote a golpe de mano derecha e izquierda y caída de escalera de mano derecha; siendo estos prácticamente realizados únicamente por los jugadores de la posición resto. Al mismo tiempo encontramos datos que nos evidencian por otra banda golpeos utilizados principalmente por jugadores medios, estas han sido el golpeo de volea, el bote de brazo, el calbote, la palma, y el manró todos ellos de mano derecha. Como conclusión del estudio, hemos obtenido que dependiendo de la posición de juego los jugadores utilizan unos tipos de golpeo u otros. Por tanto, afirmamos, que el análisis del alto rendimiento en escala i corda desde los avances de las tecnologías, nos aporta una valiosa información para establecer patrones de entrenamiento específicos.

Sistemas de protección individual anticaídas sometidos a impacto. Simulaciones numéricas

Los sistemas anticaída se establecen en UNE-EN-363 para evitar o retener caídas de personas sin que las fuerzas de retención causen daños relevantes. Constituyen el último recurso para prevención de caídas tras considerar otras medidas. Este artículo analiza las variables que afectan al comportamiento del sistema: altura de caída, longitud de cuerda de retención, rigidez y amortiguamiento del material de retención, y peso del operario. A tal fin, el fenómeno ha sido simulado con modelos dinámicos de elementos finitos mediante una cuerda elástica y un lastre rígido. Ello permite obtener valores verosímiles de las máximas fuerzas sobre el accidentado y el sistema durante el impacto. Los resultados demuestran el papel fundamental de la proporción entre altura de caída y longitud de cuerda (factor de caída), más determinante que la propia altura de caída. Las elevadas fuerzas máximas obtenidas indican la necesidad de incluir en el modelo absorbedores de energía elastoplásticos, en futuras investigaciones, con el fin de disminuir el impacto a valores razonables.

British manufactures.

[Vols. 4-6] are called "Series IV-VI."

Engineering feasibility of internal friction damping as a nondestructive evaluation technique for synthetic ropes : final report /

Includes bibliographical references.

Novellettes of a traveller; or, Odds and ends from the knapsack of Thomas Singularity, journeyman printer.

Microfilm. Ann Arbor, Mich., University Microfilms [n.d.] (American culture series, Reel 202.2)

Women are silver, women are diamonds: Conflicting images of women in the Cambodian print

This paper examines 116 articles related to sexual and reproductive health translated into English from the Khmer press from April 1997 to February 2004. These excerpts were found in The Mirror, a publication of the non-governmental organisation Open Forum of Cambodia, which collates Grid reviews all issues of the Khmer press on a weekly basis. Five major themes were identified: the politics of women's health, government regulation and control, the sex industry in Cambodia, rape, and the HIV epidemic. Discourse analysis of these articles in the context of other sources and experience allows a gendered exploration of the reporting of sexual and reproductive health and rights issues in Cambodia by the Khmer print media. The reports explore the contested political empowerment of women in this strongly hierarchical society, and the mechanisms used to regulate and control sexual activity. The expanding sex industry and associated sexual trafficking ore reported, together with the corruption of legal structures designed to regulate health systems and protect women and children from sexual exploitation and rope. The growing problem of AIDS and successes in reducing HIV transmission through the collaboration of sex workers in the 100% condom use policy is documented, and the tensions implicit in G Cultural representation of women that both protects and constrains women ore explored. (C) 2004 Reproductive Health Matters. All rights reserved.

Peptide bundles: Loops, helices, strands and sheets

Protein-protein interactions are central to all biological processes. The creation of small molecules that can structurally mimic the fundamental units of protein architecture (helices, strands, turns, and their combinations) could potentially be used to reproduce important bioactive protein surfaces and interfere in biological processes. Although this field is still in relative infancy, substantial progress is being made in creating small molecules that can mimic these individual secondary structural elements of proteins. However the generation of compounds that can reproduce larger protein surfaces, composed of multiple structural elements of proteins, has proven to be much more challenging. This presentation will describe some densely functionalised small molecules that do constrain multiple peptide motifs in defined structures such as loop bundles, helix bundles, strand and sheet bundles. An example of a helix bundle that undergoes conformational changes to a beta sheet bundle and aggregates into multi-micron length peptide nanofibre 'rope' will be described.

The Blue Highway

The Blue Highway is a collection of eleven literary short stories and ten miniatures that depict men in trouble, searching for a code to live by. The miniatures are repressed memories, appearing suddenly like the tips of ice bergs and act as stepping stones (tension bridges) between the larger works. The stories begin at the end with "Time Out", the story of Frank, a down and out homeless vet at the end of his rope. Then we begin the journey along "The Blue Highway" with Danny and his gang of teenage bandits, taking themselves to Disney World to see if they can recapture their lost dream. On our journey we will meet Mark, the ex-killer, an old Cuban fisherman who will not give up his honor, a young man on a way to a war who discovers a fantastic treasure, a soldier on his way home again, two MP's who nearly kill the wrong man, we will spend a night on an African savannah with wild hyenas and finally, meet a grandfather who discovers the one gift which might save his family. The same gift which might save Frank as well. ^

The blue highway

The Blue Highway is a collection of eleven literary short stories and ten miniature that depict men in trouble, searching for a code to live by. The miniatures are repressed memories, appearing suddenly like the tips of ice bergs and act as stepping stones (tension bridges) between the larger works. The stories begin at the end with "Time Out", the story of Frank, a down and out homeless vet at the end of his rope. Then we begin the journey along "The Blue Highway" with Danny and his gang of teenage bandits, taking themselves to Disney World to see if they can recapture their lost dream. On our journey we will meet Mark, the ex-killer, an old Cuban fisherman who will not give up his honor, a young man on a way to a war who discovers a fantastic treasure, a soldier on his way home again, two MP's who nearly kill the wrong man, we will spend a night on an African savannah with wild hyenas and finally, meet a grandfather who discovers the one gift which might save his family. The same gift which might save Frank as well.

The comparative effects of habitat complexity on faunal assemblages of northern temperate artificial and natural reefs

Several north temperate marine species were recorded on subtidal hard-substratum reef sites selected to produce a gradient of structural complexity. The study employed an established scuba-based census method, the belt transect. The three types of reef examined, with a measured gradient of increasing structural complexity, were natural rocky reef, artificial reef constructed of solid concrete blocks, and artificial reef made of concrete blocks with voids. Surveys were undertaken monthly over a calendar year using randomly placed fixed rope transects. For a number of conspicuous species of fish and invertebrates, significant differences were found between the levels of habitat complexity and abundance. Overall abundance for many of the species examined was 2-3 times higher on the complex artificial habitats than on simple artificial or natural reef habitats. The enhanced habitat availability produced by the increased structural complexity delivered through specifically designed artificial reefs may have the potential to augment faunal abundance while promoting species diversity. 

Strahlenmodifizierte Kunststoffseilscheiben in Seiltrieben

Kunststoffseilscheiben sind leichter als Stahl- oder Graugussseilscheiben, woraus sich insbesondere bei Auslegerkranen Vorteile in deren Konstruktion und Handling-Eigenschaften ergeben. Während die Betriebsdauer von Stahlseilen über metallische Seilscheiben gut bestimmbar ist, ist diese Bestimmung bei Verwendung von Kunststoffseilscheiben nur ungenau möglich. In einem AiF-ZIM-Forschungsprojekt wurden strahlenvernetzte sowie naturbelassene Kunststoffseilscheiben auf ihre veränderten Gebrauchseigenschaften untersucht und mit den Ergebnissen beim Lauf über Stahlseilscheiben verglichen.

Einsatz hochmodularer Faserseile in fördertechnischen Anwendungen

Hochmodulare Faserseile bieten dem Anwender gegenüber Drahtseilen eine Reihe von Vorteilen, die einen Einsatz in fördertechnischen Anwendungen sinnvoll erscheinen lassen. Um die Einsatzmöglichkeiten hochmodularer Faserseile zu erforschen hat das Institut für Fördertechnik und Logistik (IFT) mehrere Forschungsprojekte im Bereich der laufenden hochmodularen Faserseile und Endverbindung durchgeführt.

Endverbindungen für dynamisch belastete textile Zugmittel

Hochfeste Faserseile sind aufgrund ihrer hohen spezifischen Festigkeit prädestiniert für dynamische Anwendungen in der Fördertechnik. Der Kenntnisstand über die Zeitfestigkeit zugehöriger Endverbindungen zur Krafteinleitung ist jedoch unzureichend. Gegenstand der vorgelegten Arbeit ist die Entwicklung einer für die Anwendung von hochfesten Faserseilen geeigneten Prüfvorschrift sowie die vergleichende Untersuchung bekannter Endverbindungen für hochfeste Faserseile im Zugschwellversuch.

Diseño optimizado de alimentación de servicios auxiliares de un parque eólico off-shore en aguas profundas

[ES]La energía eólica marina supone respecto a la energía eólica en tierra una mayor generación de energía, debido a condiciones menos turbulentas del viento y más constantes que permiten mayores diámetros de palas y por tanto mayor generación de energía. En este trabajo se estudia la eficiencia energética en los sistemas auxiliares de una plataforma offshore con aerogenerador para obtención de energía eólica, y se aplican medidas de ahorro y racionalización energética. El ahorro de energía hará más viable la instalación de un sistema de posicionamiento dinámico en las plataformas, en el trabajo se estudia esta posibilidad, de manera que se asegure un mejor recurso, y la posibilidad de instalación sin restricciones legislativas y de profundidades excesivas.