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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
271

Modernizace sportovního areálu s výstavbou bytových jednotek / Modernization of the sports complex with the construction of housing units

Ladomirjáková, Jitka Unknown Date (has links)
The aim of the thesis was to create documentation for an extensive construction modifications of sports complex including the construction of housing units near Třebíč in the small village of Třebenice in Moravia. It was necessary to cooperate with the municipality and follow its requirements for the restoration of functionality and maintenance of individual operations for which the building was intended, hence the municipality considered them necessary in the future operation of the building. The project also included the design of paved areas and fencing of the playground. The main requirement of the municipality was to build a grandstand within the already built-up area of ??the object, and therefore part of the building is being demolished. This will change the layout of the basement and move the operation of the restaurant from the basement to the first floor with a view of the playground. Football players' locker rooms will be maintained in the basement, moreover a boiler room with air conditioning, facilities for referees and a club room with hygienic facilities will be added. On the first floor, the operation of the offices will be partially maintained and separated, and there will also be more space for a hairdresser and a restaurant. The last floor will be completely removed and rebuilt with a flat roof covering only half of the area compared to the current state. Following the current state, the 2nd floor will serve for housing, but as starting apartments for young families. The risers are made of autoclaved concrete and the new masonry is made of brick blocks for precise masonry. Over the restaurant is an extensive green roof and the roof over the apartments has a classic order of layers with a stabilizing layer of gravel. The building is contact-insulated with the ETICS system using mineral wool and the final layer is made of white exterior plaster. The plinth is lined with concrete cladding. Part of the restaurant is lined with wood on the so
272

Towards a History and Aesthetics of Reverse Motion

Tohline, Andrew M. 17 September 2015 (has links)
No description available.
273

Circular economy strategy for mineral wool wastes : potential secondary raw material for Alkali Activated Materials (AAMs) / Cirkulär ekonomi strategi för mineralullsavfall : potentiell sekundär råvara för Alkali-aktiverade Material (AAM)

Zhao, Shuning January 2021 (has links)
By recycling and reusing materials to close the resource cycle and move towards a circular economy, waste can be significantly reduced. At the same time, cities and regions offer opportunities to practice circular economy. As the main source of waste in the EU, the construction industry needs to both improve the recycling rate and find alternatives with a lower carbon footprint. Mineral wool waste is often considered non-recyclable, but the disposal of landfill will no longer be suitable in the medium to long term. At the same time, mineral wool can react with the alkaline activator to generate alkali activated concrete (AA concrete), which can be used as a substitute for cement concrete. This study is conducted on building typology to track mineral wool from individual building levels in Swiss dwellings over time and space. Afterward, Geographic Information System (GIS) was used to select the suitable location for establishing a mineral wool recycling plant, considering accessibility and transportation distance. Finally, using the life-cycle assessment (LCA) framework, emissions are calculated through the production phase. The results revealed that the mineral wool stock shows an increasing trend from 2020 to 2035, and can provide a stable supply. In addition, using mineral wool waste to produce AA concrete can effectively reduce CO2 emissions. Therefore, mineral wool waste has the potential to become raw material for alkali-activated materials (AAMs). Recycling factories can be set up in Zug, Zurich, and Bern as a priority. The recycling of mineral wool can be seen as a practical application of the circular economy strategy in the framework of urban planning.
274

Prefabricerat fasadsystem med återanvänt trä : en undersökning med FEM modelleringar och varierande materialparametrar / Prefabricated facade system with recycled wood : an investigation with FEM modeling and varying material parameters

Almestrand, Lovisa January 2024 (has links)
Sammanfattning Denna studie undersöker möjligheten att använda återanvänt trä från rivningsvirke i prefabricerade fasadsystem, med fokus på att minska bygg- och fastighetssektorns koldioxidutsläpp. Syftet är att med hjälp av finita elementmetoden (FEM) modellera och dimensionera fasadelement som kan användas i FÅTT-projektet och Arctic Center of Energy (ACE) i Skellefteå. Studien jämför mekaniska egenskaper mellan gammalt och nyproducerat trä samt undersöker hur fuktinducerade rörelser påverkar fasadelementen. Studiens resultat visade på att Fasadelement 1 med dimension 70x195 mm i ramen alternativt Fasadelement 3 med 45x145 i ramen var bäst lämpade för projektet. Resultaten från litteraturstudien visar att återanvänt trä kan uppfylla de nödvändiga kraven för hållbarhet och formstabilitet, vilket innebär att det finns stor potential för industriell produktion av fasadelement med återbrukat virke. Denna studie bidrar med underlag och kunskap för framtida utveckling och användning av hållbara byggmaterial inom byggindustrin. / Abstract This study investigates the potential of using reclaimed wood from demolition waste in prefabricated facade systems, aiming to reduce carbon emissions in the construction and real estate sector. The purpose is to model and design facade elements using the Finite Element Method (FEM) for the FÅTT-project and the Arctic Center of Energy (ACE) in Skellefteå. The study compares the mechanical properties of old and newly produced wood and examines how moisture-induced movements affect the facade elements. The results of the study showed that Facade Element 1 with dimensions 70x195 mm in the frame or alternatively Facade Element 3 with 45x145 mm in the frame were best suited for the project. The findings from the literature review show that reclaimed wood can meet the necessary requirements for durability and dimensional stability, indicating significant potential for industrial production of facade elements using recycled wood. This study provides insights and a solid foundation for future development and use of sustainable building materials within the construction industry.
275

Entre valeur affective et valeur d'usage, quel avenir pour les églises paroissiales françaises ? : La région urbaine Lyon Saint-Etienne interrogée par le référentiel du "Plan églises" québécois / Between emotional values and functional values, what future for french parish churches ? : The Lyon - Saint-Étienne urban region questioned by the Quebec’s "Plan Churches"

Meynier-Philip, Mélanie 16 November 2018 (has links)
Since the beginning of the 21st century, the future of religious heritage has provoked consideration within the fields of law, history, architecture and heritage. The origin of this problem is explained both by the decline in traditional worship practices, essentially Catholic in France, from the 1960s onwards, and by the Church’s lack of human and financial resources, which has resulted in the appearance of veritable "religious desert". This process, related to society’s secularisation, is expected to increase because of the likelihood of these two factors intensifying. If convents, monasteries, seminaries and other Catholic religious buildings have already been affected by this phenomenon, parish church buildings are now in turn losing their original function. Quebec has also experienced this phenomenon, but its historical and legal contexts have accelerated the transformation of churches which in turn resulted in the establishment of a "churches Plan" aiming at preserving church buildings by converting them.In this thesis, that pioneering programme is used in relation to the Lyons Saint-Etienne urban area, as a lens through which to read the French situation and as a tool for generating methods adapted to its specific context.The first part summarises the specific heritage and legal knowledge bases from Quebec and France concerning their parish churches, which is necessary for understanding the two contexts. The second part is an observational study, which defines the territory and creates an inventory of the corpus of research. We first provide an inventory of 429 parish churches within the territory studied here. From an analysis of their transformations, we propose three major typologies ("historical", "19th-century" and "20 h-century " churches), Using the cases of church conversions in ou corpus, we analyse the degree of compatibility between their previous worship use and their new uses, and then formulate hypotheses relating architectural interventions for adaptative reuse to restoration theories. The third part is an action-research interventional study. Three representative case studies from each church typology have been selected, in the town of Montarcher, Givors and Villeurbanne. For each case, a participatory approach has been set up with the municipality, inhabitants and associations, in order to propose reconversion scenarios adapted to local needs.This work shows that the demolition of parish churches, widely perceived as a common good, threatens the transmission of local identities. It therefore seems essential to start a global reflection on the evolution of this heritage, one which takes into account territorial issues, citizens' demands and the architectural diversity of these buildings. We show that the architect, through both his sensitivity to the place and his technical, can play a central role in implementing of these reflection. / Since the beginning of the 21st century, the future of religious heritage has provoked consideration within the fields of law, history, architecture and heritage. The origin of this problem is explained both by the decline in traditional worship practices, essentially Catholic in France, from the 1960s onwards, and by the Church’s lack of human and financial resources, which has resulted in the appearance of veritable "religious desert". This process, related to society’s secularisation, is expected to increase because of the likelihood of these two factors intensifying. If convents, monasteries, seminaries and other Catholic religious buildings have already been affected by this phenomenon, parish church buildings are now in turn losing their original function. Quebec has also experienced this phenomenon, but its historical and legal contexts have accelerated the transformation of churches which in turn resulted in the establishment of a "churches Plan" aiming at preserving church buildings by converting them.In this thesis, that pioneering programme is used in relation to the Lyons Saint-Etienne urban area, as a lens through which to read the French situation and as a tool for generating methods adapted to its specific context.The first part summarises the specific heritage and legal knowledge bases from Quebec and France concerning their parish churches, which is necessary for understanding the two contexts. The second part is an observational study, which defines the territory and creates an inventory of the corpus of research. We first provide an inventory of 429 parish churches within the territory studied here. From an analysis of their transformations, we propose three major typologies ("historical", "19th-century" and "20 h-century " churches), Using the cases of church conversions in ou corpus, we analyse the degree of compatibility between their previous worship use and their new uses, and then formulate hypotheses relating architectural interventions for adaptative reuse to restoration theories. The third part is an action-research interventional study. Three representative case studies from each church typology have been selected, in the town of Montarcher, Givors and Villeurbanne. For each case, a participatory approach has been set up with the municipality, inhabitants and associations, in order to propose reconversion scenarios adapted to local needs.This work shows that the demolition of parish churches, widely perceived as a common good, threatens the transmission of local identities. It therefore seems essential to start a global reflection on the evolution of this heritage, one which takes into account territorial issues, citizens' demands and the architectural diversity of these buildings. We show that the architect, through both his sensitivity to the place and his technical, can play a central role in implementing of these reflection.
276

Interdisziplinäre Lösungsansätze für die Wiedernutzbarmachung von Brachflächen

Trost, Beate 04 March 2010 (has links) (PDF)
Öffentlich Private Partnerschaften (PPP) werden als Mittel zur Mobilisierung brach liegender Grundstücke thematisiert. Eine zentrale Rolle spielt der Begriff der „Initialbrachfläche“. Erfährt die Initialbrache einen öffentlichen Nutzungszweck mit Hilfe einer PPP, hat dies positive Auswirkungen auf benachbarte Brachen in einem definierten Umfeld. Am Beispiel des Chemnitztales mit seinem hohen Brachenbestand wurde ein PPP Projekt konzipiert. Es wird weiterhin eingegangen auf Aspekte privaten und privatwirtschaftlichen Engagements für Altstandorte und Brachen, z.B. unter dem Schlagwort Corporate Social Responsibility. Darüber hinaus wird die naturschutzrechtliche Eingriffsregelung angesprochen: Ausgleich für Flächeninanspruchnahme soll künftig verstärkt zugunsten der Renaturierung von Altstandorten erfolgen. Schließlich wird die technische Neuentwicklung eines Geokunststoff Gabions vorgestellt, bei dem Bauschutt aus Flächenrecyclingprojekten als Füllmaterial eingesetzt wird. Als Einsatzbereich des transportablen Geokunststoff Gabions wird ein mobiles Hochwasserschutzsystem skizziert.
277

Influência do agregado graúdo reciclado de resíduos da construção predial nas propriedades do concreto fresco e endurecido

NUNES, Wesley Carlos 04 October 2007 (has links)
Made available in DSpace on 2014-07-29T15:03:37Z (GMT). No. of bitstreams: 1 Dissertacao Wesley Carlos Nunes.pdf: 7932394 bytes, checksum: b486f88aa078b83264c74d2720002782 (MD5) Previous issue date: 2007-10-04 / Recycling waste materials is an efficient way to hinder environmental, social and economic impacts of the civil construction industry. This dissertation aimed at verifying the behavior of different concretes made of coarse recycled aggregate (AGR), mineral fractions collected from the waste (RCD) of a high- rise apartment building (multiple floor building). The RCD has been selectively collected at the building construction site and processed by a jaw crusher. The study focused on the effects of gradual replacements of coarse natural aggregate (AGN) by AGR where the fundamental properties of the fresh and hardened concretes are concerned. The experiment involved the production of three dry aggregate/ceme nt ratios: (3,5 / 1), (5 / 1) and (6,5 / 1) for each concrete family (zero%, 25%, 50%, 75% and 100% replacement contents of AGN by AGR), and thus 15 different concrete mix proportions were manufactured. Workability, entrapped air, and density were the variables analyzed in the fresh concretes. Furthermore, water absorption, density, total pores volume, compressive strength, splitting-tensile strength, and initial-tangent modulus were the properties studied in hardened concretes. The strengths of concretes with AGR contents are lower than those of corresponding reference concretes (zero% of replacement content of AGN by AGR). However, reductions in the cement content in mixtures of the concretes produced with AGR showed compressive and splitting-tensile strengths values nearer to those of the reference concrete family. The experiment allows for the conclusion that concretes produced from AGR of RCD can be used for several purposes in civil construction, if the management of concrete mix proportions and the control of quality are performed under the liability of capable and qualified professionals. / Para minimização significativa dos impactos sócio-ambientais e econômicos provocados com o entulho gerado pela indústria da construção civil, a reciclagem destes resíduos apresenta-se como caminho alternativo e eficiente. Mediante esta perspectiva, buscou-se nesta dissertação verificar o comportamento de concretos produzidos com agregado graúdo reciclado (AGR), proveniente das frações minerais contidas no entulho (RCD) de um edifício de múltiplos pavimentos, a partir de coleta seletiva na obra e posterior beneficiamento do material em sistema de britagem. Foram estudados os efeitos de substituições gradativas do agregado graúdo natural (AGN) por AGR de RCD, nas propriedades fundamentais dos concretos, tanto no estado fresco quanto no estado endurecido. Para o desenvolvimento experimental foram produzidos concretos em três proporções de dosagem: (1 : 3,5), (1 : 5,0) e (1 : 6,5) (cimento : agregados secos), e cinco teores de substituição (0%, 25%, 50%, 75% e 100%) do AGN por AGR, totalizando, desde modo, 15 proporções de dosagem estudadas. A trabalhabilidade, teor de ar aprisionado e massa específica foram as propriedades estudadas nos concretos em estado fresco. As propriedades avaliadas no estado endurecido dos concretos foram absorção de água, massa específica, índice de vazios, resistência à compressão axial, resistência à tração por compressão diametral e módulo de deformação. As resistências dos concretos produzidos com teores de AGR apresentaram-se inferiores aos correspondentes concretos de referência 0% de teor de substituição do AGN por AGR. Entretanto, na proporção em que se reduziu o consumo de cimento nas dosagens, os concretos produzidos com AGR apresentaram valores de resistências à compressão e à tração mais próximos aos resultados aferidos para os concretos de referência. Os experimentos conduziram a concluir que, tanto do ponto de vista técnico quanto econômico, os concretos produzidos com AGR de RCD podem ser normalmente utilizados na construção civil, desde que as dosagens das misturas e o controle de qualidade destes concretos sejam realizados sob responsabilidade de profissionais comprovadamente habilitados e especializados.
278

Recyklované kamenivo do pozemních komunikací / Recycled aggregate to pavement constructions of roads

Antošová, Klára January 2015 (has links)
The diploma thesis deals with using of recycled aggregate of concrete for base layers of pavement. The work is divided into practical and theoretical part. The theoretical part deals with basic concepts of construction and demolition waste, production, development and management of this waste in the Czech Republic. It also focuses on the principle of recycling and the use of recycled concrete in the Czech Republic and abroad. The practical part of the thesis deals with laboratory testing and assessment of recycled aggregates in bound, unbound and grouted courses layers of the base layers of roads.
279

Autonomous quantum error correction with superconducting qubits / Vers le calcul quantique tolérant à l’erreur adapté aux expériences en circuit QED

Cohen, Joachim 03 February 2017 (has links)
Dans cette thèse, nous développons plusieurs outils pour la Correction d’Erreur Quantique (CEQ) autonome avec les qubits supraconducteurs.Nous proposons un schéma de CEQ autonome qui repose sur la technique du « reservoir engineering », dans lequel trois qubits de type transmon sont couplés à un ou plusieurs modes dissipatifs. Grâce à la mise au point d’une interaction effective entre les systèmes, l’entropie créée par les éventuelles erreurs est évacuée à travers les modes dissipatifs.La deuxième partie de ce travail porte sur un type de code récemment développé, le code des chats, à travers lequel l’information logique est encodée dans le vaste espace de Hilbert d’un oscillateur harmonique. Nous proposons un protocole pour réaliser des mesures continues et non-perturbatrices de la parité du nombre de photons dans une cavité micro-onde, ce qui correspond au syndrome d’erreur pour le code des chats. Enfin, en utilisant les résultats précédents, nous présentons plusieurs protocoles de CEQ continus et/ou autonomes basés sur le code des chats. Ces protocoles offrent une protection robuste contre les canaux d’erreur dominants en présence de dissipation stimulée à plusieurs photons. / In this thesis, we develop several tools in the direction of autonomous Quantum Error Correction (QEC) with superconducting qubits. We design an autonomous QEC scheme based on quantum reservoir engineering, in which transmon qubits are coupled to lossy modes. Through an engineered interaction between these systems, the entropy created by eventual errors is evacuated via the dissipative modes.The second part of this work focus on the recently developed cat codes, through which the logical information is encoded in the large Hilbert space of a harmonic oscillator. We propose a scheme to perform continuous and quantum non-demolition measurements of photon-number parity in a microwave cavity, which corresponds to the error syndrome in the cat code. In our design, we exploit the strongly nonlinear Hamiltonian of a highimpedance Josephson circuit, coupling ahigh-Q cavity storage cavity mode to a low-Q readout one. Last, as a follow up of the above results, we present several continuous and/or autonomous QEC schemes using the cat code. These schemes provide a robust protection against dominant error channels in the presence of multi-photon driven dissipation.
280

Projekt přípravy a realizace výrobní a skladovací haly v Mniší / Execution of Production and Storage Hall in Mniší

Šilhová, Kristýna January 2018 (has links)
The diploma thesis deals with the realization of a production and storage hall for the engineering industry. Part of the realization of the production hall is the demolition work of the existing agricultural building. The reconstruction of the existing premises of locksmith's workshop and dressing room for employees is also being implemented. For the preparation of this project, the thesis deals with the implementation of the main technological stages, technological plans for demolition work and substructure, transport routes of the main building materials and machines, technical report of the building site, time and financial plan of the construction, security measures especially for demolition works, quality control when drilling a pilot.

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