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Jenie, Y.I. (author), Van Kampen, E.J. (author), De Visser, C.C. (author), Ellerbroek, J. (author), Hoekstra, J.M. (author)
Autonomous systems are required in order to enable UAVs to conduct self-separation and collision avoidance, especially for flights within the civil airspace system. A method called the Velocity Obstacle Method can provide the necessary situational awareness for UAVs in a dynamic environment, and can help to generate a deconflicting maneuver.This...
conference paper 2015
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Droste, B. (author), Van Gent, R. (author), Straathof, M. (author), Steenhuizen, D. (author), Kotsonis, M. (author), Geuskens, F. (author), Shroff, S. (author), Guerriero, G. (author), Gangoli Rao, A. (author), Lada, C. (author), Dewanji, D. (author), Yu, H. (author), Schroijen, M. (author), Hoekstra, J. (author), The CleanEra Team (author)
The CleanEra project was initiated with the goal of developing revolutionary ideas for civil aviation. These ideas were to offer solutions which would limit and reduce some of the negative aspects of aviation, namely: emissions and the use of resources. This book presents you with the highlights of this journey in search of new technologies for...
book 2015
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Hoekstra, M.J. (author), Rooij, R.M. (author)
In de wandelgangen van de faculteit komt de toekomstige internationalisering regelmatig voorbij. Om in een later stadium daadwerkelijk beslissingen te kunnen maken over de verengelsing van de bachelor, is discussie nodig. Eerder publiceerde Bnieuws een gesprek tussen Directeur Onderwijs Roberto Cavallo en toenmalig voorzitter van de Facultaire...
journal article 2015
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Sunil, E. (author), Hoekstra, J.M. (author), Ellerbroek, J. (author), Bussink, F. (author), Nieuwenhuisen, D. (author), Vidosavljevic, A. (author), Kern, S. (author)
Personal and unmanned aerial vehicles have received increasing media attention over the last decade. As a result of the growing excitement for these two aircraft types, many within and outside the aerospace industry envision a future in which large numbers of small aircraft fly over urban areas. With this vision for the future, the question...
conference paper 2015
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Jenie, Y.I. (author), van Kampen, E.J. (author), Ellerbroek, J. (author), Hoekstra, J.M. (author)
A novel architecture for a general Unmanned Aerial Vehicle (UAV) Conflict Detection and Resolution (CD&R) system, in the context of their integration into the civilian airspace, is proposed in this paper. The architecture consists of layers of safety approaches ,each representing a combination of different methods for surveillance, coordination,...
conference paper 2015
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Brinkman, W.P. (author), Hoekstra, A.R.D. (author), Van Egmond, R. (author)
Three studies were conducted to examine the effect of audio on people's experience in a virtual world. The first study showed that people could distinguish between mono, stereo, Dolby surround and 3D audio of a wasp. The second study found significant effects for audio techniques on people's self-reported anxiety, presence, and spatial...
conference paper 2015
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Arntzen, M. (author), Aalmoes, R. (author), Bussink, F. (author), Sunil, E. (author), Hoekstra, J.M. (author)
The development of Personal aerial vehicles and unmanned aerial vehicles are expected to have a considerable influence on the development of future airspace design around large cities. In the Metropolis project, four different concepts for airspace design are assessed for a (metropolitan) city of the future. The different noise impact on the...
conference paper 2015
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Elsinga, M.G. (author), Haffner, M.E.A. (author), Hoekstra, J.S.C.M. (author)
Onderzoek uitgevoerd in opdracht van Platform 31 (in samenwerking met Corpovenista en het Ministerie van Binnenlandse Zaken en Koninkrijksrelaties).
report 2015
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Haffner, M.E.A. (author), Hoekstra, J.S.C.M. (author), Tang, C. (author), Oxley, M. (author)
In the United Kingdom, social landlords are facing decreasing governmental financial support for them to fulfil their role in the provision of social housing, which has led to increasing pressure on them to rely on private capital. Traditionally, bank loans were the main source of private capital, but after the Global Financial Crisis (GFC) and...
conference paper 2015
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Etxezarreta Etxarri, A. (author), Hoekstra, J.S.C.M. (author), Cano Fuentes, G. (author), Cruz Mazo, E. (author), Dol, C.P. (author)
The main purpose of this paper is to offer a new theoretical framework to the Spanish housing studies. This article combines different traditions and different frameworks (social innovation, social economy), in order to position the crisis of evictions in Spain and the emergence of housing co-operatives in a new theoretical context. In the first...
conference paper 2015
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Deng, W. (author), Hoekstra, J.S.C.M. (author), Elsinga, M.G. (author)
This paper reviews the housing policy of China from 1949-2013. It examines the housing tenure change, policy instruments, and impacts social structures in different time periods. After the welfare period of 1949-77, the dual provision period of 1978-1998, and the market dominant period of 1999-2011, China’s housing policy was again reformed...
report 2015
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Elsinga, M.G. (author), Hoekstra, J.S.C.M. (author)
This paper reflects on the different faces of asset-based welfare from both a theoretical and an empirical perspective. It shows that asset-based welfare can be perceived as a lever for welfare state restructuring but also as an instrument for poverty eradication. In most countries, asset-based welfare policies focus on stimulating home...
journal article 2015
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Hoekstra, J.S.C.M. (author), Cornette, F. (author)
report 2014
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Schreuders, H. (author), Wassenberg, F. (author), Buijnink, J. (author), Hoekstra, J. (author)
conference paper 2014
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Hoekstra, J. (author)
conference paper 2014
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Deng, W. (author), Hoekstra, J.S.C.M. (author), Elsinga, M.G. (author)
This paper reviews the housing policy of China from 1949-2013. It examines the housing tenure change, policy instruments, and impacts social structures in different time periods. After the welfare period of 1949-77, the dual provision period of 1978-1998, and the market dominant period of 1999-2011, China’s housing policy was again reformed...
conference paper 2014
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Hoekstra, J.S.C.M. (author)
lecture notes 2014
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Hoekstra, J.S.C.M. (author)
lecture notes 2014
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Savenije, H.H.G. (author), Hoekstra, A.Y. (author), Van der Zaag, P. (author)
This paper reviews the changing relation between human beings and water since the Industrial Revolution, a period that has been called the Anthropocene because of the unprecedented scale at which humans have altered the planet during this time. We show how the rapidly changing world urges us to continuously improve our understanding of the...
journal article 2014
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Etxezarreta Etxarri, A. (author), Cano Fuentes, G. (author), Hoekstra, J.S.C.M. (author), Dol, C.P. (author)
journal article 2013
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