45 research outputs found
A Meaning of Baroque in terms of Space Syntax
No full textA city is a spatial system that is generated in the process of searching for an ideal form. From the structure of a city, we can find paradigms of the past in which worldviews of the society are instilled. Baroque, to be studied in this paper, is interpreted as a change from ′limitation′ to ′infinity′. There are many studies that investigated Baroque but they see the change from a single viewpoint of either cosmology or practicality. The purpose of this study is, therefore, to combine these two viewpoints for a comprehensive understanding of what paradigm has formed Baroque cities. Practicality is revealed by means of Space Syntax and our new concept, Urban Entropy Coefficient (: UEC), which is then related to cosmology. We conclude that the intention of Baroque was to configure a Multi-Center layout for the dynamic function of the city
Teoría y prácticas urbanísticas en Europa entre 1850 y 1930. Su traslado a América Latina
No full textThe author analyzes the theoretical and practical influence of European urban planning in Latin America during this period. Beginning with the most significant characterlstics of the work of Cerdá, Haussmann, Le Corbusier and others, he studies their influence on the changes undergone by Latin America cities, wbich are increasingly in need of planning.El autor plantea la influencia teórica y práctica del urbanismo europeo en América Latina durante ese períqdo. Partiendo de las características más importantes de la obra de Cerdá, Haussmann y Le Corbusier, entre otros, se estudia su repercusión en los cambios experimentados por las ciudades latinoamericanas, progresivamente necesitadas de una planificación
Social Quandaries: understanding the quirks and features of London’s post-war social housing architecture
No full textIn social quandaries is an analysis of three council housing estates dating back to the 1960s, all situated within the Greater London area. The analytical framework was informed by the book “Paris Haussmann: A Model’s Relevance,” which extensively examines the Haussmann plan in Paris, employing various mediums such as writing, drawing, and photography to explain its characteristics across different dimensions.Drawing upon the research, my study concludes in several recommendations that form the foundational basis of my research-based design. These principles have been derived from a qualitative analysis of the estates, incorporating insights from two books that cover various factors that are crucial in establishing architectural and urban spatial quality. The principles are: facilitating interaction and vegetation, the incorporation of pedways and walkways, densification, mixed typologies, a multifunctional plinth, and the inclusion of courtyards.Consequently, the design process that has been undertaken centers around these guiding principles, using them as primary elements to create architectural and spatial quality within the redevelopment of a London council estate.By doing this I try to complete my design objective, which is to demonstrate the value present in the social housing stock of 1960s London, emphasizing the importance of preserving or redeveloping these buildings rather than resorting to demolition.Heterogeneous LondonArchitecture, Urbanism and Building Sciences | Architectural Design Crossover
Maximum power point tracking under realistic operating conditions
No full textThe process of tracking the Maximum Power Point (MPP), known as MPPT, becomes problematic under realistic operating conditions due to the potential for there to be more than one local maxima. A very detailed physics based model has been developed for a PV module (in this application a PV roof tile) using the Orcad platform for PSpice. This model is unusual in that it properly represents partial module shading and cell temperature variation. The PV roof tile, based on polycrystalline silicon cells, comprises 18 series-connected cells. In the model, each cell is represented by a standard two-diode sub-model, for which different levels of radiation and cell temperature can be simulated to obtain a realistic overall I-V characteristic for the module. The model can be extended to model any reasonable number of PV roof tiles wired in series and parallel to form a roof array. The IV characteristics calculated in this way using PSpice will be validated using an outdoor PV roof test system located at the University of Strathclyde, Glasgow
The Partially Observed Stochastic Minimum Principle.
No full textVarious proofs have been given of the minimum principle satisfied by an optimal control in a partially observed stochastic control problem. See, for example, the papers by Bensoussan [1], Elliott [5], Haussmann [7], and the recent paper [9] by Haussmann in which the adjoint process is identified. The simple case of a partially observed Markov chain is discussed in the University of Maryland lecture notes [6] of the second author. We show in this article how a minimum principle for a partially observed diffusion can be obtained by differentiating the statement that a control U* is optimal. The results of Bismuit [2], [3] and Kunita [10], on stochastic flows enable us to compute in an easy and explicit way the change in the cost due to a 'strong variation' of an optimal control. The only technical difficulty is the justification of the differentiation. As we wished to exhibit the simplification obtained by using the ideas of stochastic flows the result is not proved under the weakest possible hypotheses. Finally, in Section 6, we show how Bensoussan's minimum principle follows from our result if the drift coefficient is differentiable in the control variable
The Log-Sobolev Inequality on Loop Space over a Compact Riemannian Manifold
No full textAbstractWe obtain a log-Sobolev inequality with a neat and explicit potential for the gradient on a based loop space over a compact Riemannian manifold. The potential term relies only on the curvature of the manifold and the Hessian of the heat kernel, and isLp-integrable for allp⩾1. The log-Sobolev inequality is derived by a martingale representation theorem for the differentiable functions on loop space, which is a variation of the Clark–Ocone–Haussmann formula
Latent variable model for high-dimensional point process with structured missingness
No full textPublisher Copyright: Copyright 2024 by the author(s)Longitudinal data are important in numerous fields, such as healthcare, sociology, and seismology, but real-world datasets present notable challenges for practitioners because they can be high-dimensional, contain structured missingness patterns, and measurement time points can be governed by an unknown stochastic process. While various solutions have been suggested, the majority of them have been designed to account for only one of these challenges. In this work, we propose a flexible and efficient latent-variable model that is capable of addressing all these limitations. Our approach utilizes Gaussian processes to capture temporal correlations between samples and their associated missingness masks as well as to model the underlying point process. We construct our model as a variational autoencoder together with deep neural network parameterised encoder and decoder models and develop a scalable amortised variational inference approach for efficient model training. We demonstrate competitive performance using both simulated and real datasets.Peer reviewe
The Lost Experience: A tool for resistance
No full textThe thesis is focused on Paris and the notion of power, prevailing in the city. It is more particularly looking at the experience of control felt within it and how it is possible to design in resistance to this particular aspect.The graduation was developed along different methodologies and themes of interest. The research, set at the beginning of the graduation, looked at how different monuments in Paris are using the visitor’s experience to condition its reactions and so behaviour. From it rose a reflection on the entering process and its conditioning aspect and the possibilities of resistance it could offer.Following the research came the study of Paris on a larger scale to look at places at the corner of political interventions, and therefore control. This was done to find a ground of potential resistance to the city structure. The place de la Bastille first appeared as a typical Parisian square, it is an important node for the city infrastructure and has at its centre a monument. However, its name and particular political and urban history revealed how it is in resistance.The study and analysis of the place’s history and structure delivers another understanding of the place, its important features and how it serves as an exception within Paris.Since Haussmann, Paris is characterized by uniformed public spaces. Its specificities relying on monuments and different figures of representations inherent to the French political history.His intervention on the place the la Bastille resulted in a disconnection between the common experience of the place and the symbolic of its name.The project itself re-uses the place’s history and physical aspect, its lost experience to reconnect the visitor to the feeling of the place; and not its representations; as a tool for resistance.Architecture, Urbanism and Building Sciences | Explorela
Managing processes and information technology in mergers - the integration of finance processes and systems
No full textMany companies use mergers to achieve their growth goals or target technology position. To realise synergies that justify the merger transaction, an integration of the merged companies is often necessary. Such integartion takes place across company business areas (such as finance or sales) and across the layers of management consideration, which are strategy, human resources, organisation, processes, and information technology.
In merger integration techniques, there is a significant gap regarding the management of operational level issues. Yet, especially for the finance business area, an integration of processes and information technology is of high importance and often required swiftly after the merger. The author therefore presents an approach designed for managing the operational level merger in the finance business area.
To close the gap in considering operational level issues, the author has developed a model for integraring finance processes and information technology of merging companies. For such model development, literature resources have been used along with merger experiences of the author, and interviews with merger experts. Validation of the developed model has been conducted by using in-depth case studies for showing the effects of applying the model. Further validation interviews have been conducted to support the generality of the approach.
Accommodating the significant increase of task complexity during mergers compared to normal business operation, the presented approach focuses on managing interdependencies instead of project detail. Features of this approach comprise:
An organisational proposal to settinmg up merger programme management;
An interdependency model, vertically interconnecting the finance business area with strategic and organisational merger decisions, and horizontally interconnecting the finance business area with other business areas.
It could be shown that the presented model improves merger integration quality by reducing complexity of merger management. The model is most applicable for larger companies, and can be used in any merger phase
Jakość życia i przestrzeń publiczna w procesach miejskiej odnowy — wybrane koncepcje i wątki debaty
No full textThe aim of the article is to show the relationship between the aspirations to improve the quality of life and improve social relations and the undertakings serving the renovation of urban spaces. In the first part of the text—after formulating more general remarks about the social significance of space—a few of the concepts of town modernization implemented in the modern history of the developed world (Cerdá, Haussmann, Le Corbusier) are presented, while pointing out their most often ambivalent social results. Attention to the latter has been paid by, among others, critics of modernism and supporters of alternative visions (Jacobs, representatives of the new urbanism, advocates of the ideas
of a socially cohesive or fair-shared city, etc.). As the national empirical illustration, the author then characterizes the case of urban and social changes taking place in the last two decades in the Powiśle district of Warsaw. Their effect, regardless of the general benefits of modernization and the desired and long-awaited approximation of the capital to the river, are also controversial, often critically evaluated gentrification processes.Celem artykułu jest pokazanie związków między dążeniami do podniesienia jakości życia i poprawy stosunków społecznych a przedsięwzięciami służącymi odnowie przestrzeni miejskich. W pierwszej części tekstu—po sformułowaniu ogólniejszych uwag na temat społecznego znaczenia przestrzeni—wskazano kilka realizowanych w najnowszej historii rozwiniętego świata koncepcji unowocześniania miast (Cerdà, Haussmann, Le Corbusier), akcentując ich najczęściej ambiwalentne skutki społeczne. Na te ostatnie zwracają uwagę m.in. krytycy modernizmu i zwolennicy wizji wobec niego alternatywnych (Jacobs, przedstawiciele tzw. nowego urbanizmu, promotorzy idei miasta spójnego społecznie, „sprawiedliwie dzielonego” itp.). Tytułem krajowej ilustracji empirycznej, autor scharakteryzował następnie przypadek przemian urbanistycznych i społecznych, jakie zachodzą w ostatnich dwóch dekadach w warszawskiej dzielnicy Powiśle. Ich efektem, niezależnie od generalnych korzyści modernizacyjnych oraz pożądanego i długo oczekiwanego zbliżenia stolicy do rzeki, są także kontrowersyjne, często krytycznie oceniane procesy gentryfikacyjne
