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Solar energy potential in the urban areas
Andrej Orgulan, Jože Voršič, Andrej Kosmačin, 2006, objavljeni znanstveni prispevek na konferenci

Ključne besede: solar energy, urban areas, photovoltaic converters
Objavljeno: 30.05.2012; Ogledov: 878; Prenosov: 26
URL Povezava na celotno besedilo

Cross-border region Graz-Maribor: challenges and potentials of integration processes
Kaja Pogačar, Metka Sitar, 2009, objavljeni znanstveni prispevek na konferenci

Opis: The paper outlines the spatial development of the cross-border region between the two cities - Graz (Austria) and Maribor (Slovenia) - with regard to the integration processes in the past, present and future. First, the analyses of the past, when both parts of the region shared the national border, will be discussed. It will emphasize the consequences of the ćborder effectć, which are mostly characterised by growing intensification of urbanization alongside the main transport axis, the emergence of new 'urban nods', and the gradual urban sprawl in the hinterland. For decades, the area has been generating various integration processes of economic, social and cultural collaboration, which were in most cases partly financed by the European Union (EU). In 2004, after Slovenia joined the EU, some traditional relationships started to perform in the opposite way, demonstrating the gradually diminishing rate of commuter flows, especially those of shopping tourism. However, the current regional development is characterised by strong efforts for balancing the economic, social and cultural standards on both sides of the cross-border region. The paper aims to identify these new dynamics of intraregional interactions as potentials for future developments.
Ključne besede: spatial development, cross-border regions, border regions, new urban nodes, case study, Graz, Maribor
Objavljeno: 31.05.2012; Ogledov: 902; Prenosov: 17
URL Povezava na celotno besedilo

Public lighting in the communicative urban context
Melita Rozman Cafuta, 2010, pregledni znanstveni članek

Opis: The article explores holistic approach of understanding the importance of lighted urban environment. The city at night is quite diff erent from the city during the daytime. In the evening, att ention is focused on the eff ect of the light; during the daytime it is the support structure that plays a partin determining the public appearance. The requirements for the successful lighting are: visibility of objects that ensure safety and orientation, recognition of traffi c situation, the ability to create comfort and well being, limited or shielded light brightness, and suitable color of the light to the surrounding and visible role in social interaction. Considering all demands a city has an att ractive and inviting appearance, even after dark. The lighting creates a pleasant atmosphere, but should not dominate. On the other side, even qualitative created artifi cial light has some negative environment burden usually called light pollution. The article presents some possibilities to achieve the balance between realization of positive lighting aspects and improvement of negative illumination eff ects.
Ključne besede: public lightning, urban development
Objavljeno: 31.05.2012; Ogledov: 829; Prenosov: 16
URL Povezava na celotno besedilo

Improving city transport with the objective to reduce CO2 emissions
Marjan Sternad, Matjaž Knez, Bojan Rosi, 2010, izvirni znanstveni članek

Opis: In the past few years traffic volume is increasing. As a consequence, negative external traffic effects are increasing too, in particular CO2 emissions, which result in global warming and climate changes. CO2 emissions, a by-product of vehicles are much higher in cities due to traffic density. According to European standards, Celje is not a large city; however its traffic poses a great problem that the city authorities will soon be confronted with. This paper focuses on the city centre of Celje, where traffic flow was measured and CO2 emissions calculated. Using alternative solutions the aim was to present impacts on the environment in the municipality of Celje in an event of changed traffic regimes. In order to reach the guidelines of sustainable transport development in the municipality of Celje, in the future, different measures for reducing negative external effects of city transport will have to be put into force, for only this way the quality of city life can be improved and compatibility of environmental, economic and social objectives provided.
Ključne besede: city transport, traffic effects, CO2 emmisions, sustainable development, urban environment, systemic approach
Objavljeno: 05.06.2012; Ogledov: 1627; Prenosov: 41
.pdf Celotno besedilo (547,69 KB)
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Reconstruction of delivery positions in the city of Celje, Slovenia
Dejan Dragan, Klemen Prah, Tea Vizinger, Marko Intihar, Maja Fošner, Tomaž Kramberger, 2013, izvirni znanstveni članek

Opis: The paper addresses the problem of the reconstruction and allocation of delivery positions in the urban area. The aim is to achieve the optimal reorganization of urban freight transport in old town core in the municipality of Celje. Optimal allocation relies on optimization based on the Monte Carlo simulation and represents a first stage of a two-stage optimization approach to re-design the existing urban freight transport. The number of optimal delivery positions is required to be as minimal as possible, which can still assure a maximal service area within the prescribed radius, while keeping the minimal walking distances of delivery personnel between the nearest delivery position and the customerʼs physical location. The main issues of the used heuristic allocation algorithm and the presentation of calculated results are provided. In the near future, the calculated delivery positions are going to be used for the purpose of physical implementation in order to improve the existing delivery transport.
Ključne besede: urban transport problems, urban freight transport, delivery, optimization, maximum location covering problems, MLCP, Monte-Carlo simulation
Objavljeno: 10.07.2015; Ogledov: 547; Prenosov: 65
.pdf Celotno besedilo (999,26 KB)
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Rail freight for urban logistics - dream or reality?
Stanislav Božičnik, 2010, vabljeno predavanje na konferenci brez natisa

Ključne besede: urban logistics
Objavljeno: 10.07.2015; Ogledov: 819; Prenosov: 13
URL Povezava na celotno besedilo

Typology of cross-border urban areas
Kaja Pogačar, Metka Sitar, 2010, izvirni znanstveni članek

Opis: The opening of the internal borders among the member states of the European Union (EU) has not only caused the development of different socio-economic processes, but also of new urban potential in the areas lying across the national borders. Although there has recently been a remarkable upsurge of activities and interests in the regions and areas along the borders regarding the formation of border regions and cross- border processes, they mostly remain quite rigidly within specialised disciplinary fields, i.e. economy, geography, and sociology. There is, however, much less interest in cross-border areas seen in the light of spatial and urban development processes within EU integration. The article provides an overview of specific urban formations through the presentation of selected cases of cross-border regions and, in addition, aims to open some new issues with regard to the context of Slovenian border regions. On the basis of their morphological, economic, and social characteristics, a range of urban typologies, such as cross-border agglomerations, urban exclaves, bi-national border cities etc. will be identified and analysed from different aspects of spatial development.
Ključne besede: border regions, border-crossings, bi-national border cities, cross-border agglomerations, linear urban sites, urban exclaves
Objavljeno: 10.07.2015; Ogledov: 525; Prenosov: 47
.pdf Celotno besedilo (621,48 KB)
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Modified surface of Cu, Zn, Cu10Zn and Cu40Zn with expression of hydrophobic properties for the purpose of corrosion protection
Gregor Žerjav, 2015, doktorska disertacija

Opis: Copper and its alloys are soft and malleable metals and are often used for fabricating structures and monuments open to the atmosphere where they are subject to corrosion attack. There are many ways to protect metal against corrosion: corrosion inhibitors, protective layers, hydrophobic layers. He aim was to develop a simple technological process for forming hydrophobic, protective coatings for protection of Cu, Cu10Zn, Cu40Zn and Zn under conditions of atmospheric corrosion as tested in simulated urban rain. Carboxylic acids form self-assembled hydrophobic layers by adsorption to the positively charged metal surfaces via their carboxylic group. Corrosion inhibitors are often used to protect metals against corrosion in closed system. Most used corrosion inhibitors to protect Cu and its alloys is benzotriazole (BTAH) which showed good results in different environments. 2-mercaptobenzimidazole (2-MBI) is a derivative of BTAH with stronger affinity to adsorb on the Cu surface and showed good corrosion protection results in acidic solutions. Corrosion protection properties of the layers were tested with the use of electrochemical methods: potentiodynamic polarization and electrochemical impedance spectroscopy. The results were complement with immersion test where the weight loss was obtained. The properties of the layers were explored with surface-analytical methods: measurement of the contact angles, X-ray photoelectron spectroscopy, scanning electron microscopy with a chemical analysis and glow discharge optical emission spectroscopy. First the optimal conditions to produce hydrophobic coatings with the use of carboxylic acids were explored. The inhibition efficiency increased with increasing carbon chain length, longer preparation time in ethanol solution and increasing concentration of carboxylic acid. The inhibition of corrosion of Cu, Cu10Zn, Cu40Zn and Zn in simulated urban rain was further studied using the self-assembly of BTAH, 2-MBI and SA in ethanol solution, as individual inhibitors and in combinations. The morphology of layers differed greatly. The results of electrochemical measurements and weight loss immersion test ruled out BTAH as a possible inhibitor, unless combined with stearic acid. In the cases of Cu40Zn and Zn it even promoted corrosion. In contrast, 2-MBI gave good results, and even better in combination with stearic acid. SA layers provided the best long term corrosion protection of all tested inhibitors and exhibited the highest contact angles. 2-MBI provided less protection than SA. Combining organic inhibitor and stearic acid improves the corrosion protection properties of the self-assembled layers compare to individual layers. To make the procedure of layer preparation more appropriate for industrial application the time of immersion was decreased. Layers prepared on Cu with 1 min immersion time showed adequate corrosion protection of Cu in simulated urban rain. We also studied the possibility of combining SA with vitamin E in the layer preparation procedure. The modified layers formed with combination of Vitamin E and SA showed better corrosion inhibition properties for Cu and Cu40Zn in simulated urban rain as individual layers. Combining inhibitor and carboxylic acid together to prepare corrosion protective layers has a positive effect on the corrosion properties of the layers. Layers made combining corrosion inhibitor and carboxylic acid showed better corrosion protection than individual layers. The self-assembling process is a fast process shown by the tests made on the Cu layers with shorter immersion time. The addition of Vitamin E in the preparation of layers with carboxylic acids shows a positive effect on the corrosion properties of layers.
Ključne besede: copper, brass, corrosion, simulated urban rain, inhibitors, carboxylic acid, benzotriazole, 2-mercaptobenzimidazole
Objavljeno: 30.11.2015; Ogledov: 707; Prenosov: 77
.pdf Celotno besedilo (9,58 MB)

Educationa Park - Technical Academy Maribor
Samanta Rebernak, 2016, magistrsko delo

Opis: The Educational Park - Technical Academy Maribor is a new concept with which we wish to enrich the city of Maribor. The main idea is to connect research and education with practical experience, start up companies and the production spaces of big companies. This broad content with multiple additions could be placed in the Business Industrial Zone Tezno, with certain modifications to the existing structures. This thesis deals with the evolution of industrial architecture and especially its importance to the city of Maribor. We present an in depth historical analysis of the company TAM, the predecessor of today’s BIZ Tezno, which was one of the biggest factories with research facilities and educational spaces in the former Yugoslavia. The urban master plan consists of the placement of the afore-mentioned content in the facilities of BIZ Tezno. The idea is to create an open, inviting space that would be a part of city life, with the addition of sports facilities, pool areas, a museum of industrial heritage, a concert hall, etc. As a continuation of the master plan, we also designed an industrial architectural model that shows how the concept of the Educational park can be implemented in the facilities of an established company. We also contemplated the use of renewable materials and, therefore, used timber in the construction. The facility would be an addition to the brand image of any company that values sustainable development and progress.
Ključne besede: degraded urban areas, brownfield, converting a factory complex, Maribor industrial heritage, TAM, industrial architecture, Science park, Technology Park, Industrial Park, Timber construction, Timber hybrid construction
Objavljeno: 20.04.2016; Ogledov: 1009; Prenosov: 107
.pdf Celotno besedilo (98,26 MB)

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