Searched for: mods_originInfo_publisher_s%3A%22Instituto%255C%2BSuperior%255C%2BT%25C3%25A9cnico%22
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Zhao, Zhou (author), Buchner, A.L.L. (author), Ding, Junfei (author), Shi, Shengxian (author), Atkinson, Callum (author), Soria, Julio (author)
As a novel volumetric particle image velocimetry technique, single-camera light-field PIV (LF-PIV) is able to reconstruct three-dimensional flow fields with a single camera. The merits of LF-PIV lie in its concise hardware setup and minimum optical access requirement, its capability has been proved in many flow scenarios. In this study, LF-PIV...
conference paper 2018
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Gotfredsen, Erik (author), Kunoy, Jens D. (author), Mayer, Stefan (author), Poelma, C. (author), Westerweel, J. (author), Meyer, Knud Erik (author)
The effect of pulsations in a catalyst converter is investigated with the aim of determining if a steady flow captures the same physical phenomena as the pulsating flow. For this specific case, guide vanes are mounted in the sudden expansion to obtain a uniform inlet flow to the catalytic layers. The test rig is successfully validated against...
conference paper 2018
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Muller, K. (author), Tam, D.S.W. (author), Westerweel, J. (author)
Obtaining accurate experimental data from Lagrangian tracking and tomographic velocimetry requires an accurate and consistent camera calibration over multiple views. At length-scales that span beyond the laboratory environment obtaining a camera calibration can be challenging. Combining tools developed in computer vision and non-linear camera...
conference paper 2018
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Kislaya, A. (author), Deka, Antaran (author), Veenstra, Peter (author), Tam, D.S.W. (author), Westerweel, J. (author)
In micro-PIV, reaching the optimum image density has always been difficult due to high displacement gradient, coagulation of particles at the inlet and due to particles adhering to the surface to name a few. The most widely used method is to take ensemble correlation average of multiple PIV images to extract the velocity field. However, this...
conference paper 2018
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van Meerkerk, M. (author), Poelma, C. (author), Westerweel, J. (author)
A quasi three-dimensional stereo-camera measurement technique has been devised that is able to measure liquid free surface profiles, by scanning a light sheet. The technique will be applied to study the variability of impact pressure observed during wave impact in a newly developed experimental set-up. The set-up imposes severe optical (single...
conference paper 2018
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Laouar, Dounia (author), Mazouz, Said (author), van Nes, A. (author)
The study investigates the relationship between space and crime by using space syntax. The aim is to describe the spatial characteristics of the built environment and the spatial distribution of crime pattern. The space syntax variables are connected to the statistical data on street crime data registered in Annaba.<br/>This inquiry seeks to...
conference paper 2017
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Toprak, I. (author), Ünlü, A. (author), van Nes, A. (author)
This paper investigates the mutual effects of cultural diversity and neighbourhood change in three historic neighbourhoods in Istanbul. Through history, some neighbourhoods in Istanbul have been home for people from different cultural and religious backgrounds. In some of these neighbourhoods, cultural diversity still exists. Some other...
conference paper 2017
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Read, S.A. (author), Lopes Gil, J.A. (author)
This paper reviews an idea of vital local high-street places with their walking spaces and economies founded in interfaces between neighbourhood and city (between walking and public transport/bicycle movement infrastructures). It then extends this idea to higher scales, considering interfaces between city and region, which have already been...
conference paper 2017
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Mohamed, A.A. (author), van Nes, A. (author)
This paper shows the research results from a research project investigating the relationship between spatial configuration and the distribution of commercial activities in throughout planned and informal urban environments. The research methodology uses space syntax analysis as well as statistical calculations. The spatial accessibility model...
conference paper 2017
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Hausleitner, B. (author), Berghauser Pont, M.Y. (author)
In cities manifold actors are continuously taking decisions and proposing interventions, which are driven by, but also change, spatial conditions and their performance on a variety of scales. Understanding how this interplay works is crucial for urban designers and planners. However, this complexity asks for new methods of analysis or...
conference paper 2017
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De Carvalho Filho, L.M. (author), van Nes, A. (author)
This contribution is part of a PhD research. The study investigates the factors related to the vitality of street life in Brazilian cities. To what extent play urban form a part in forging the vitality of street life and why? What is the impact of the urban planning regime on the relation between urban form and vitality? That second factor...
conference paper 2017
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Berghauser Pont, M.Y. (author), Stavroulaki, G. (author), Lopes Gil, J.A. (author), Marcus, L. (author), Serra, M. (author), Hausleitner, B. (author), Olsson, J. (author), Abshirini, E. (author), Dhanani, A. (author)
It has been argued that different urban configurations-planned vs. organic, treelike vs. grid like-perform differently when it comes to the intensity and distribution of pedestrian flows, built density and land uses. However, definitions of urban configurations are often rather abstract, ill-defined and at worse end in fixed stereotypes...
conference paper 2017
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van Nes, A. (author)
This contribution shows various approaches from the theory of science for revealing the explanatory power of the Space Syntax. In this contribution Bhaskar's critical realistic model of science and Georg Henrik von Wright's account of explanation and understanding are used to assess the explanatory power of Space Syntax research. In essence...
conference paper 2017
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Alexander, Or (author), Yamu, Claudia (author), van Nes, A. (author)
This paper examines how a cognitive boundary with no physical presence has affected life in the cities of Jaffa and Tel Aviv, not only during its time of existence (1921-1950) but many decades after it was erased from all official documents. In 1921, the national aspirations of Jews in Jaffa, embraced by the local British Mandate government,...
conference paper 2017
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De Koning, R.E. (author), van Nes, A. (author), Ye, Y. (author), Roald, H.J. (author)
Bergen city in Norway is presently undergoing an enormous population growth. In this respect, Bergen municipality wanted to identify all the possibilities for densification in the current situation. Therefore, the following issues were evaluated: street network and public transport accessibility, building density, degree of functional...
conference paper 2017
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Mohamed, A.A. (author), van Nes, A. (author)
Incidents of sexual harassment are unequally distributed in the Greater Cairo Region because cities, generally speaking, have uneven patterns of movement and activity with higher rates of pedestrian and vehicular movement and activities in some quarters than others. Central areas usually have concentrations of people and activity, hence higher...
conference paper 2017
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Poelma, C. (author), Gurung, A. (author)
Ultrasound Imaging Velocimetry (UIV, also known as 'echo-PIV') has, since its introduction a decade ago, been regarded as a promising tool to characterize non-transparent flows. Prime application examples are particle-laden flows and (in vivo) blood flow. Virtually all studies so far have been validation/comparison studies in laminar flow. In...
conference paper 2016
Searched for: mods_originInfo_publisher_s%3A%22Instituto%255C%2BSuperior%255C%2BT%25C3%25A9cnico%22
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