Belgrade is the only capital in the world at the confluence of two major international rivers navigable for global shipment—the Danube and the Sava River. However, it was only after the unification of all riversides within Yugoslavia in 1918 that Belgrade started to develop its riverfront; initially, as green recreation areas during the socialist era. Since the post-socialist transition, this trajectory has sharply changed in order to create new urban nodes along the riverfront. The best example is the newest project of the urban renewal of waterfront development at the Sava River, the “Belgrade Waterfront Project.” This mega-project has sparked a lot of attention. The aim of this research is to present, evaluate, and spatially determine this attention before and after the project inauguration. This observational study is conducted by using two methods from social discourse: a survey, as a traditional method, and analysis based on social network data (Twitter) as a newer, “smarter” one. Comparing and mapping their results, this research offers recommendations on how to harmonize and modernize the development of this crucial potential of Belgrade.

This article describes an implementation of a compact wire model into the three-dimensional transmission-line matrix (TLM) cylindrical mesh for the purpose of an efficient analysis of probe-coupled cylindrical microwave cavity devices. Because of a cylindrical grid structure and empirical nature of the compact model, this implementation has to take into account a change of wire model parameters with a variable cross section of the TLM nodes through which a wire conductor passes. The model accuracy has been experimentally verified and compared with the corresponding results reached by the TLM method based on a rectangular grid in order to consider its advantages. © 2011 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2012.

This letter addresses the ability of the TLM method with an incorporated compact wire model, both adjusted to the cylindrical grid, to accurately model a coaxially fed patch-ring antenna together with an investigation of the computational efficiency in a modeling procedure. Design of the antenna has included an optimization of the coaxial feed location to achieve a wider bandwidth. A prototype of the antenna was fabricated and measured. It has been shown that the patch-ring antenna exhibits more than three times wider bandwidth than the classic circular patch antenna. Advantages of the cylindrical-grid-based TLM approach related to a better conformity of the orthogonal polar mesh with the structure being modeled and a better efficiency associated with a number of TLM cells in the modeling procedure have been demonstrated with regards to the rectangular-grid-based TLM method. Also, a limitation of the rectangular solver related to an inadequate modeling of narrow slots that is dependent on the mesh resolution applied has been accentuated and proved.

The transmission‐line matrix method enhanced with the compact wire model in a cylindrical grid is used for modelling of a coaxially loaded cylindrical cavity resonator with probes inserted into the cavity. Benefits of using a cylindrical grid instead of rectangular, related to precise modelling of cavity boundaries, a coaxially shaped dielectric sample and radially placed wire elements, are explored. The accuracy of the simulated results is verified by measurements of an experimental model of the cavity‐wire structure.

The influence of feed-probe dimensions on the resonant frequencies in a cylindrical metallic cavity is investigated and presented. Cavity modelling is achieved by using the transmission-line matrix (TLM) time-domain method and a wire node to account for the feed-probe presence. The results of the TLM analysis are validated against the experimental results. © 2006 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2006.