Refine
Document Type
- Doctoral Thesis (33)
- Article (7)
- Conference Proceeding (6)
- Master's Thesis (4)
- Book (3)
- Preprint (3)
- Bachelor Thesis (2)
- Periodical (2)
- Report (2)
- Habilitation (1)
Institute
- Institut für Strukturmechanik (ISM) (12)
- Institut für Europäische Urbanistik (6)
- Institut für Konstruktiven Ingenieurbau (IKI) (4)
- Professur Sozialwissenschaftliche Stadtforschung (4)
- Professur Modellierung und Simulation - Konstruktion (3)
- Professur Raumplanung und Raumforschung (3)
- Promotionsstudiengang Kunst und Design-Freie Kunst-Medienkunst (Ph.D) (3)
- An-Institute (2)
- Junior-Professur Organisation und vernetzte Medien (2)
- Medienkunst/Mediengestaltung (2)
Keywords
- OA-Publikationsfonds2019 (8)
- Architektur (5)
- Ingenieurwissenschaften (4)
- Stadtplanung (4)
- Denkmalpflege (3)
- Ingenieurbau (3)
- Stadtentwicklung (3)
- Structural Engineering (3)
- Städtebau (3)
- Aerodynamik (2)
Year of publication
- 2019 (65) (remove)
This research seeks to make an exploratory study of the strategies used by the creators of monuments, memorials, and commemorative places located in the public spaces that use sound as one of the primary raw material in their design. The term acoustic monu-memorials was coined in this research to encircle these structures and places. In order to achieve the goal of this research, it was necessary to compile a number of samples, primarily after the digital recording era of captured sound around 1971 to the present. The compilation was relevant because such a compendium was not found in the literature, and to the author's knowledge, a comprehensive investigation of the strategies used in planning acoustic monu-memorials in the urban spaces does not exist.
The method used to create such compendium was to send a question to people with different background identities, such as visual and sound artists, musicians, art curators, and heritage scholars among others. This question produced a selection of 51 examples of acoustic monu-memorials located in public spaces. Subsequently, the examples were classified into four major categories according to their form and nature. Additionally, two examples from the main categories were chosen as case studies: The Sinti and Roma Memorial in Berlin, Germany and the Niche monument in Cali, Colombia. These study cases were presented, described, and analysed in detail as they represent the type of what could be defined as an acoustic monu-memorial in general.
Lynch’s (1960) five elements that help individuals build the image of the city were transferred and used as a tool to help to build this image into acoustic terms. A thorough analysis of the acquired data yielded found the strategies used by the designers to shape, modify, transform, and structure public space. These strategies are entitled Sound Spaces. Moreover, a list entitled Urban Acoustic Commemoration Code was compiled. This list of suggestions addresses urban planners, architects, artists, designers, and general public interested in the aspects involved when creating acoustic commemoration phenomena in public spaces.
Jazzforschung heute
(2019)
Die internationale Jazzforschung hat sich in den vergangenen Jahrzehnten zahlreiche neue Fragestellungen und Forschungsansätze erschlossen. So sind etwa die globalen Dimensionen des Jazz, die Rolle von Frauen im Jazz oder seine mannigfaltigen kulturellen Bedeutungen in Geschichte und Gegenwart ins Zentrum der Forschung gerückt. Die dreizehn Beiträge des Tagungsbandes widmen sich Themen, Methoden und Desideraten der gegenwärtigen wissenschaftlichen Auseinandersetzung mit dem Jazz. Zudem werden Perspektiven des künstlerischen Forschens im Jazz und der Ausbildung von Jazzmusikern und -forschern diskutiert.
Estimating the solubility of carbon dioxide in ionic liquids, using reliable models, is of paramount importance from both environmental and economic points of view. In this regard, the current research aims at evaluating the performance of two data-driven techniques, namely multilayer perceptron (MLP) and gene expression programming (GEP), for predicting the solubility of carbon dioxide (CO2) in ionic liquids (ILs) as the function of pressure, temperature, and four thermodynamical parameters of the ionic liquid. To develop the above techniques, 744 experimental data points derived from the literature including 13 ILs were used (80% of the points for training and 20% for validation). Two backpropagation-based methods, namely Levenberg–Marquardt (LM) and Bayesian Regularization (BR), were applied to optimize the MLP algorithm. Various statistical and graphical assessments were applied to check the credibility of the developed techniques. The results were then compared with those calculated using Peng–Robinson (PR) or Soave–Redlich–Kwong (SRK) equations of state (EoS). The highest coefficient of determination (R2 = 0.9965) and the lowest root mean square error (RMSE = 0.0116) were recorded for the MLP-LMA model on the full dataset (with a negligible difference to the MLP-BR model). The comparison of results from this model with the vastly applied thermodynamic equation of state models revealed slightly better performance, but the EoS approaches also performed well with R2 from 0.984 up to 0.996. Lastly, the newly established correlation based on the GEP model exhibited very satisfactory results with overall values of R2 = 0.9896 and RMSE = 0.0201.
Brazilian battlers’ housing discusses the self-production of dwellings in the circumstances of the socioeconomic rise of the so-called Brazilian new middle class, occurred on the first decade of the years 2000. Battlers are a precarious working class of about 100 million people, who have used their recently increased purchase power to informally solve their private housing demands, planning, building and renovating their homes themselves, with limited technical knowledge and almost no access to formal technicians as for example architects. The result is a mode of housing production, which spreads over the territory in micro-local self-initiatives and informal social practices of construction and management. With the support of a controversial manpower, this practice presents all sorts of technical complications, but at the same time expedient ways of affordability and creative spatial solutions for ordinary constructive problems. Such initiatives have consolidated Brazilian informal settlements and peripheral subdivisions, attending a demand poorly responded by the government. This research recognises the benefits of the self-production, but questions the conditions under which it happens and asks if it really collaborates for a true social rise of those who are engaged in it. With an empirical and qualitative approach and taking dwelling construction processes leaded by battlers as main information sources, the academic work responds if and how the socioeconomic rise of the Brazilian battlers has exactly affected the self-production of dwellings. For that, battlers’ self-production of dwellings is analysed and discussed in five main aspects: 1) acquisition of land and real state, 2) building overtime, 3) space and creative power, 4) technical complications and building materials and 5) manpower and know-how.
Campus Bockenheim Revisited
(2019)
Jürgen Schardt legt eine umfassende Studie zur Architektur der Stadt- und Universitätsbauten in Frankfurt am Main von 1906 bis 1956 vor. Besonderer Schwerpunkt liegt dabei auf den gesellschaftlichen und politischen Rahmenbedingungen der Architekturproduktion und einer kritischen Revision der etablierten Historiografie der Goethe-Universität. Der Autor widmet sich in drei Teilen jeweils dem Kaiserreich und der Gründung der Hochschule im Jahr 1914, der Zeit der Weimarer Republik sowie der Jahre des Aufbaus nach dem Zweiten Weltkrieg. Schardt untersucht die entstandenen Gebäude hinsichtlich schlüssiger Kriterien bürgerlicher Architektur, beleuchtet aber auch andere für die Hochschulgeschichte relevante Rahmenbedingungen. Die lesenswerte Studie verbindet dabei Aspekte der Sozial-, Wissenschafts- und Architekturgeschichte.
The underlying goal of this work is to reduce the uncertainty related to thermally induced stress prediction. This is accomplished by considering use of non-linear material behavior, notably path dependent thermal hysteresis behavior in the elastic properties.
Primary novel factors of this work center on two aspects.
1. Broad material characterization and mechanistic material understanding, giving insight into why this class of material behaves in characteristic manners.
2. Development and implementation of a thermal hysteresis material model and its use to determine impact on overall macroscopic stress predictions.
Results highlight microcracking evolution and behavior as the dominant mechanism for material property complexity in this class of materials. Additionally, it was found that for the cases studied, thermal hysteresis behavior impacts relevant peak stress predictions of a heavy-duty diesel particulate filter undergoing a drop-to-idle regeneration by less than ~15% for all conditions tested. It is also found that path independent heating curves may be utilized for a linear solution assumption to simplify analysis.
This work brings forth a newly conceived concept of a 3 state, 4 path, thermally induced microcrack evolution process; demonstrates experimental behavior that is consistent with the proposed mechanisms, develops a mathematical framework that describes the process and quantifies the impact in a real world application space.
Wireless sensor networks have attracted great attention for applications in structural health monitoring due to their ease of use, flexibility of deployment, and cost-effectiveness. This paper presents a software framework for WiFi-based wireless sensor networks composed of low-cost mass market single-board computers. A number of specific system-level software components were developed to enable robust data acquisition, data processing, sensor network communication, and timing with a focus on structural health monitoring (SHM) applications. The framework was validated on Raspberry Pi computers, and its performance was studied in detail. The paper presents several characteristics of the measurement quality such as sampling accuracy and time synchronization and discusses the specific limitations of the system. The implementation includes a complementary smartphone application that is utilized for data acquisition, visualization, and analysis. A prototypical implementation further demonstrates the feasibility of integrating smartphones as data acquisition nodes into the network, utilizing their internal sensors. The measurement system was employed in several monitoring campaigns, three of which are documented in detail. The suitability of the system is evaluated based on comparisons of target quantities with reference measurements. The results indicate that the presented system can robustly achieve a measurement performance commensurate with that required in many typical SHM tasks such as modal identification. As such, it represents a cost-effective alternative to more traditional monitoring solutions.
The capitalization of ‘certified’ sustainable building sector will be investigated over the power theory of value approach of Jonathan Nitzan and Shimshon Bichler. The study will be initiated by questioning why the environment problems are one of the first items on the agenda and by sharing the ideas of scholars who approaches the subject skeptically, because the predominant literature underlying the necessity and prominence of the topic is already well-known and adapted by the majority. Over the theory developed by Nitzan and Bichler, the concepts of capitalization, strategic sabotage, power, legitimacy, and obedience will be discussed. The hypothesis of “the absentee owners of the construction sector, holding the whip hand and capitalizing the ecology, control the growth and the creativity of green building production and make it carbon-dependent, in order to increase their profit margin” will be questioned. To strengthen the arguments in the hypothesis, the factors, the institutional arrangements, value measurement methods, which affect directly the net present value, will be investigated both in corporation and in building scale in detail, because net present value/ capitalization is asserted as the most important criteria by Nitzan and Bichler to make the investment decisions in the capitalist economic system. To trace the implications of power and the strategic sabotage that power caused, as the empirical dimension of this dissertation, an interface exploring the correlational ties between the climate responsive architecture and the ever changing political, economical, and social contexts and building economics praxis by decades will be developed and the expert interviews will be conducted with the design teams and the appraisers.
Die vorliegende Arbeit hat die Absicht, den Bedarf der Umsetzung der Planungsidee ‚kinder- und jugendfreundliche Stadtentwicklung’ in Korea zu erforschen und Vorschläge für die Umsetzung zu machen. Darüber hinaus will sie herausfinden, warum man sich bezüglich der Durchführung der kinder- und jugendfreundlichen Stadtentwicklung zunächst auf die Schulen und deren Umgebungen konzentrieren soll.
Deshalb widmet sich die Dissertation zuerst der Literaturrecherche, sowohl was den Begriff der kinder- und jugendfreundlichen Stadtentwicklung angeht als auch der Literatur bezüglich des Beitrags der Schulen zur Realisierung der kinder- und jugendfreundlichen Stadtentwicklung. Danach wird untersucht, ob das deutsche Instrument ‚Spielleitplanung‘ sich als Leitfaden für die gesamte Konzeption der koreanischen kinder- und jugendfreundlichen Stadtentwicklung eignet. Darüber hinaus werden Interviews mit koreanischen Experten aus Stadtplanung und Architektur, Pädagogik und öffentlicher Verwaltung als Forschungsmethode verwendet, um in Bezug auf die kinder- jungendfreundliche Stadtentwicklung den koreanischen Zustand zu analysieren. Zuletzt werden anhand der Untersuchungsergebnisse Handlungs-empfehlungen für die Durchführung der koreanischen kinder- und jugend-freundlichen Stadtentwicklung formuliert.
Anhand dieser Forschung kann konstatiert werden, dass die kinder- und jugendfreundliche Stadtentwicklung eine wichtige Planungsidee ist, weil dadurch Stadtplanerinnen und Stadtplaner sowohl zum körperlichen und geistigen gesunden Aufwachsen von Kindern und Jugendlichen als auch zur Entwicklung ihrer sozialen Kompetenzen erheblich beitragen können. Vor allem soll man die koreanische kinder- und jugendfreundliche Stadtentwicklung zunächst auf den Schulen und den schulischen Umgebungen umsetzen. Denn dadurch lassen sich vielseitige eventuelle Hindernisse bei der Durchführung der kinder- und jugendfreundlichen Stadtentwicklung vermeiden. Ein weiterer Grund ist, dass die Schulen in Korea nicht nur in der Gesellschaft eine zentrale Rolle spielen, sondern auch im Rahmen der Stadtplanung. Auffällig ist, dass die kinder- und jugendfreundliche Stadtentwicklung sowohl auf die räumlichen Gestaltungen als auch auf die Beteiligung von Kindern und Jugendlichen in der städtischen Planung fokussiert ist. Allerdings werden bei der Stadtentwicklung die Kinder und Jugendliche in Korea noch nicht als wichtige Akteure angesehen. Darum soll man die Spielleitplanung in Korea einbeziehen, weil sie als Leitbild bei einer Konzeption der koreanischen kinder- und jugendlichen Stadtentwicklung fungieren kann. Jedoch müssen dabei die kulturellen Unterschiede zwischen Deutschland und Korea berücksichtigt werden.
Weiterhin wurde durch die Interviews festgestellt, dass das Interesse und der Wille von Experten aus der Stadtplanung an Kinder- und Jugendfreundlichkeit die wichtigsten Voraussetzungen sind, um die kinder- und jugendfreundliche Stadtentwicklung in Korea zu verankern und zu verbreiten.
Großsiedlungen sind nicht nur ein Erbe der Moderne, sondern seit über drei Jahrzehnten Gegenstand der Stadterneuerung. Dieses Buch erörtert, was eine heute „normale“ Großsiedlung stadtplanerisch benötigt und welche stadtentwicklungs- als auch wohnungspolitisch gesteuerten Ressourcen in einer integrierten Planungssteuerung gebündelt werden sollten. Dabei wird das grundsätzliche Planungsinstrument des Quartiersmanagements aktualisiert – über den Gegenstand Großsiedlungen hinaus.