2,104 research outputs found
Le ville di Ludwig Mies van der Rohe
No full textQuesto volume ha per oggetto il ri-disegno su base cronologica delle ville progettate da Ludwig Mies van der Rohe (Aquisgrana, 1886 - Chicago, 1969). Secondo una linea ormai consolidata, sia nella critica che nell’opinione comune, il nucleo problematico dell’opera miesiana risiede specificamente nell’abitare. Il ri-disegno critico-analitico di questi edifici, alla stessa scala (1:400) e secondo le medesime condizioni grafiche, vuole manifestare così il proprio carattere di “costruzione logica” e dunque di replicabilità di un processo progettuale.
Da questo punto di vista, l’architettura delle ville dell’architetto tedesco è esemplare: un unico principio spaziale, associato alla forma della vita domestica, viene messo in opera attraverso l’iterazione di elementi architettonici coincidenti con quelli della costruzione (pilastri, setti, muri liberi, pareti vetrate, pavimenti e solai) e sperimentato attraverso la produzione di un gran numero di variazioni di questo tema. Come afferma acutamente Dietrich Neumann nella Prefazione, attraverso il ri-disegno gli autori «dimostrano con sicurezzache gli strumenti dell’architetto possono rivelare intuizioni diverse rispetto a quelli dell’archivista o dello storico».
Mettere in sequenza le tappe di una fra le più straordinarie esperienze artistiche del Novecento significa non solo creare una tassonomia miesiana, ma anche disvelare le linee di continuità e quelle di faglia di una ricerca paziente fino al limite dell’ossessione, ma soprattutto mettere in luce alcune tecniche compositive, a essa sottese, che sondano e incrociano princìpi antichissimi (assialità, proporzioni auree, rapporti tra pieni e vuoti, tra parti coperte e scoperte dell’edificio) con quelli enunciati dalla “nuova tradizione” del Moderno (slittamenti,
smaterializzazione, essenzialità, trasparenze, riflessioni e velature). In definitiva, secondo gli autori, siamo di fronte a una ricerca della relazione tra forma e vita che si sviluppa in una dimensione assolutamente autonoma o, per usare le parole di Peter Eisenman, l’opera di Mies van der Rohe «manifesta certamente delle tendenze che si possono descrivere soltanto come interne al lavoro dell’architettura»
Robert Neumann: Mit eigener Feder
No full textRobert Neumann (1897–1957, Austrian exiled author and Vicepresidet of the PEN International, was even a disputatious antifascist political writer. His essays, his letters and biograpical documents give a vivid portrait of the diversity of literary life in Germay and Austria (before 1933/after 1958) and of exile in England (1933–1958).Der österreichische Schriftsteller Robert Neumann (1897–1975), Exilant und Vizepräsident des PEN International, war auch ein streitbarer antifaschistischer Publizist. Seine politisch-literarischen Aufsätze, seine Briefe und biographischen Dokumente ergeben ein lebendiges und facettenreiches Bild des literarischen Lebens in Deutschland und Österreich (vor 1933/nach 1958) und des Exils in England (1933–1958)
Speilelungen/Reflections
No full text[Book] In recent years "light architecture" has returned as an important component of contemporary architectural design. More and more architects work with lighting designers in order to develop concepts for the nocturnal appearance of their buildings. It is little known that, despite numerous recent technical developments, the vocabulary of today's lighting designers has a long history. The large world fairs of the nineteenth century were the first testing ground for architectural illumination." "This publication juxtaposes historic buildings and architectural visions with recent designs, as well as with contemporary paintings and photographs that reacted to the changing nocturnal skyline. Essays address different aspects of this aspect of architectural history
International Arrivals Building, Idlewild Airport
No full text[Book] The potential of electric light as a new building “material” was recognized in the 1920s and became a useful design tool by the mid-century. Skillful lighting allowed for theatricality, narrative, and a new emphasis on structure and space. The Structure of Light tells the story of the career of Richard Kelly, the field’s most influential figure.\ud
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Six historians, architects, and practitioners explore Kelly’s unparalleled influence on modern architecture and his lighting designs for some of the 20th century’s most iconic buildings: Philip Johnson’s Glass House; Louis Kahn’s Kimbell Art Museum; Eero Saarinen’s GM Technical Center; and Mies van der Rohe’s Seagram Building, among many others. This beautifully illustrated history demonstrates the range of applications, building types, and artistic solutions he employed to achieve a “nocturnal modernity” that would render buildings evocatively different at night. The survival of Kelly’s rich correspondence and extensive diaries allows an in-depth look at the triumphs and uncertainties of a young profession in the making.\ud
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The first book to focus on the contributions of a master in the field of architectural lighting, this fascinating volume celebrates the practice’s significance in modern design
Seagram Building
No full text[Book] The potential of electric light as a new building “material” was recognized in the 1920s and became a useful design tool by the mid-century. Skillful lighting allowed for theatricality, narrative, and a new emphasis on structure and space. The Structure of Light tells the story of the career of Richard Kelly, the field’s most influential figure.\ud
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Six historians, architects, and practitioners explore Kelly’s unparalleled influence on modern architecture and his lighting designs for some of the 20th century’s most iconic buildings: Philip Johnson’s Glass House; Louis Kahn’s Kimbell Art Museum; Eero Saarinen’s GM Technical Center; and Mies van der Rohe’s Seagram Building, among many others. This beautifully illustrated history demonstrates the range of applications, building types, and artistic solutions he employed to achieve a “nocturnal modernity” that would render buildings evocatively different at night. The survival of Kelly’s rich correspondence and extensive diaries allows an in-depth look at the triumphs and uncertainties of a young profession in the making.\ud
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The first book to focus on the contributions of a master in the field of architectural lighting, this fascinating volume celebrates the practice’s significance in modern design
Ökologische Untersuchungen am Rotbach im nördlichen Eifelvorland : mit 5 Tabellen und 8 Abbildungen
No full textPeter Stropnik, Dietrich Neumann und Armin Kurec
Literatur trotz Geschichte. Eine Alfred Andersch Lektüre
No full textHarth Dietrich. Literatur trotz Geschichte. Eine Alfred-Andersch-Lektüre. In: Cahiers d'Études Germaniques, numéro 21, 1991. pp. 51-59
Relative Haagerup property for arbitrary von Neumann algebras
No full textWe introduce the relative Haagerup approximation property for a unital, expected inclusion of arbitrary von Neumann algebras and show that if the smaller algebra is finite then the notion only depends on the inclusion itself, and not on the choice of the conditional expectation. Several variations of the definition are shown to be equivalent in this case, and in particular the approximating maps can be chosen to be unital and preserving the reference state. The concept is then applied to amalgamated free products of von Neumann algebras and used to deduce that the standard Haagerup property for a von Neumann algebra is stable under taking free products with amalgamation over finite-dimensional subalgebras. The general results are illustrated by examples coming from q-deformed Hecke-von Neumann algebras and von Neumann algebras of quantum orthogonal groups.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Analysi
“Silver Circulation and the Development of the Private Economy in the Assyrian Empire (9th-7th centuries BC): Considerations on Private Investments, Prices, and Prosperity Levels of the Imperial Elite”
No full textA comparison of deflation and the balancing Neumann-Neumann preconditioner
No full textIn this paper we compare various preconditioners for the numerical solution of partial differential equations. We compare the well-known balancing Neumann Neumann preconditioner used in domain decomposition methods with a so-called deflation preconditioner. We prove that the effective condition number of the deflated preconditioned system is always, i.e. for all deflation vectors and all restrictions and prolongations, below the condition number of the system preconditioned by the balancing Neumann-Neumann preconditioner. Even more, we establish that both preconditioners lead to almost the same spectra. The zero eigenvalues of the deflation preconditioned system are replaced by eigenvalues which are one if the balancing Neumann-Neumann preconditioner is used. Moreover, we proved that the A-norm of the errors of the iterates build by the deflation preconditioner is always below the A-norm of the errors of the iterates build by the balancing Neumann-Neumann preconditioner. Additionally, the amount of work of one iteration of the de ation preconditioned system is less than the amount of work of one iteration of the balancing Neumann-Neumann preconditioned system. Finally, we establish that the deflation preconditioner and the balancing Neumann-Neumann preconditioner produces the same iterates if one uses certain starting vectors. Numerical results for porous media flows emphasize the theoretical results.Electrical Engineering, Mathematics and Computer Scienc
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