Guangzhou is the central city in the Pearl River Delta (PRD), China, and is one of the most polluted cities in the world. To characterize the ambient falling dust pollution, two typical sampling sites: urban (Wushan) and suburban (University Town) areas in Guangzhou city were chosen for falling dust collection over 1 year at time intervals of 1 or 2 months. The flux of dry deposition was calcul...

A ray-tracing algorithm is used to simulate broadband radio propagation at 3.5GHz for a FWA network in a high-rise city environment. Both coverage and uplink interference are investigated, with linear antenna polarisation. It is shown that some rooftop locations are unsuitable positions for SU’s, due to the existence of single or multiple-bounce reflected rays causing uplink interference. It is...

Yoichi Aso, ∗ Yuta Michimura, † Kentaro Somiya, ‡ Masaki Ando, 3 Osamu Miyakawa, Takanori Sekiguchi, Daisuke Tatsumi, and Hiroaki Yamamoto (The KAGRA Collaboration) Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, JAPAN Department of Physics, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo, 152-8550, JAPAN National Astronomical Observatory o...

The real time rendering of complex virtual city models has become more important in the last few years for many practical applications like realistic navigation or urban planning. For maximum rendering performance, the complexity of the geometry or textures can be reduced by decreasing the resolution until the data set can fully reside on the memory of the graphics card. This typically results ...

This paper presents the methods to predict the number of people waiting in queues in Districts Offices of the City of Warsaw. On the basis of information from real-time queues length exposed as a part of Open City Data portal we can predict number of people in given time frame, which can be then used to further estimate predicted waiting time. These information are important and useful for numb...

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Smart tourism is a new buzzword applied to describe the increasing reliance of tourism destinations, their industries and their tourists on emerging forms of ICT that allow for massive amounts of data to be transformed into value propositions. However, it remains ill-defined as a concept, which hinders its theoretical development. The paper defines smart tourism, sheds light on current smart to...

Much research about large cities has focused on policy-level action for concerns such as infrastructure, basic amenities and education, treating the citizens as a collective of millions. We suggest an alternative, drawing on recent moves towards ‘digital era governance.’ We argue for and develop a foundation for the design and modeling of services that focus on individuals. Drawing on and exten...