Prof. Julia Georgi Profile

Prof. Julia Georgi

at Neapolis University of Pafos

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Publications (4)

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Proceedings Article | 6 September 2017 Paper

Unmanned aerial vehicle (UAV) application to the structural health assessment of large civil engineering structures

Carlo Castiglioni, Angelo Rabuffetti, Gian Chiarelli, Giovanni Brambilla, Julia Georgi

Proceedings Volume 10444, 1044414 (2017) https://doi.org/10.1117/12.2277921

KEYWORDS: Unmanned aerial vehicles, Civil engineering

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This paper summarizes the experience gained in the structural assessment of an existing Thermal Power Plant (TPP) located near Pristina, focusing on the cooling tower and the flue gas stack, which are the main structures of the TPP. Scope of the work was the evaluation of the actual conditions of the structures and to identify the eventual repair measures in order to guarantee a safe and reliable operation of the TPP in view of the extension of its operational lifetime for the next 30 years. With this aim, a sequence of different activities was performed, like: a topographic survey to compare the actual geometrical configuration with the design one, an investigation of the material properties, an in depth visual inspection in order to detect any visible existing damage. Due to the very high elevations of the constructions and to the lack of appropriate structures aimed to their inspections and maintenance, this activity could not be performed without using Unmanned Aerial Vehicle (UAV). This resulted the safest, most economical and less time-consuming solution identified to map the surface damage in the reinforced concrete elements of these large structures including zones that could not be inspected because out of reach by other means.

Proceedings Article | 6 September 2017 Paper

Analysis of the urban green areas of Nicosia: the case study of Linear Park of Pedieos River

Pavlos Zanos, Julia Georgi

Proceedings Volume 10444, 104440V (2017) https://doi.org/10.1117/12.2279665

KEYWORDS: Ecology

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At present, the need for creating outdoor green areas is unquestionable. Their value is shown through their use for recreation, sports, cultural and socioeconomic purposes, the ecology and especially biodiversity, which has always been considered as one of the most important factors in recent years, as well as in the future. With the creation of new parks and open green spaces, the legacy will be continued for the next generations, with designs that will be pleasantly utilized through the years.

In the first part of this study, we examined the way the largest urban green spaces in Nicosia affect and contribute to the lifestyle of the inhabitants of the city, as well as the reasons why the citizens of Cyprus embraced urban parks in their everyday life, making them so popular. The present paper, therefore, analyses both the effect and the changes in the urban structure while urban green spaces in the city of Nicosia are being created, as well as which areas are affected, how they are affected and to what extent.

We have conducted a field-based survey, providing the urban parks’ visitors with questionnaires. This enabled us to draw a wealth of essential conclusions concerning the visitors' preferences. We have also listed both the positive and negative impacts of urban green spaces on both the economic and urban design sectors, as well as on Cypriots' recreation time. The green areas of Nicosia, along with their detailed analysis, are extensively presented in this study.

Moreover, in the second part of this study, the G.I.S program was used to create a space presentation of the urban linear park of Pedieos, where the area was mapped and the positive and negative elements of the park were analysed. In this part, ways to address the emerging issues are also proposed.

Proceedings Article | 12 August 2016 Paper

Management and protection of peri-urban forests of three towns in Greece

J. Georgi, S. Zigkiris, Z. Ftika, E. Konstantinidou

Proceedings Volume 9688, 96881N (2016) https://doi.org/10.1117/12.2242851

KEYWORDS: Vegetation, Ecosystems, Soil contamination, Environmental sensing, Floods, Analytical research, Air contamination, Pollution, Climatology, Roads

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The satisfaction of continuous leisure demand in suburban forest requires a proper management of space so as on the one hand to provide better services to visitors and on the other hand to protect against excessive and improper use by guests. In the present study we investigated and analyzed the current situation of the suburban forests of Drama, Limni and Elassona and proposed the appropriate future management. The views of residents are reflected in primary research using a questionnaire (personal interview). The results focus, regardless of the region, to the multiple roles played by suburban forests for urban and suburban areas. The integration of suburban forests and especially of all the urban green as key elements of spatial planning and urban reconstruction of large and small urban centers, are the means that will create favorable conditions for future upgrading of suburban forests in order to sufficiently accomplish a modern triple role; productive, ecological and social.

Proceedings Article | 12 August 2014 Paper

The further environmental development of Polyphyto Hydroelectric Project reservoir in Kozani prefecture and its contribution to the life quality improvement

Chara Saounatsou, Julia Georgi

Proceedings Volume 9229, 922910 (2014) https://doi.org/10.1117/12.2067603

KEYWORDS: Hydroelectric energy, Floods, Computer simulations, Agriculture, Polonium, Ions, Head, Buildings, Remote sensing, Geographic information systems

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The Polyphyto Hydroelectric Project was constructed in 1974 and it has been operating since on the Aliakmonas River, Kozani prefecture, by the Greek Public Power Corporation. The construction of the Ilarion Hydroelectric Project, upstream from the Polyphyto Reservoir, has been recently completed and will start operating in the near future. Apart from hydroelectric power production, the Polyphyto reservoir provides flood control to the areas below the Polyphyto dam. It is also used to manage water provision to the city of Thessaloniki and adjacent agricultural plain, providing at the same time cooling water to the Thermo Electric Projects in Ptolemaida. The Polyphyto reservoir has potential for further development as an economic fulcrum to the region in which is located. The Kozani and Servia–Velvendos Municipalities have proceeded to the construction of several touristic, nautical – athletic and fishing projects. In order to promote such developments, while preserving the artificial wetland, flora and fauna of the Polyphyto Reservoir, it is important to reduce the fluctuation of the reservoir elevation which according to its technical characteristics is 21m. The aim of this paper is to propose the combined operation of the two Hydroelectric Project reservoirs to satisfy all the present Polyphyto Hydroelectric Project functions and to reduce the annual fluctuation of the Polyphyto Reservoir. The HEC-5, Version 8 / 1998 computer model was used in our calculations, as developed by the Hydrologic Engineering Center (HEC) of the US Army Corps of Engineers for reservoir operation simulation. Five possible operation scenarios are tested in this paper to show that the present fluctuation of the Polyphyto Reservoir can be reduced, with some limitations, except during dry weather periods.

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