871. The potential for EVITA project e-KPIs to be used by Road AuthoritiesDarko Kokot, 2021, published scientific conference contribution Abstract: Planning different strategies in road maintenance is one of the most important activities inroad asset management. Assessment of different strategies and their comparison can be done by implementing an appropriate measure - Key Performance Indicators (KPIs). KPIs are currently used in many Road Authorities, and systematic research on the subject and development of indicators has been ongoing for many years. The Conference of European Directors of Roads (CEDR) funded project “EVITA - Environmental Performance Indicators for the Total Road Infrastructure Assets” aimed at developing and integrating new and existing environ-mental KPIs (e-KPIs) into the asset management process, taking into account the expectations of different stakeholders (users, operators, residents, etc.). The research focus was on environmental areas: Noise, with KPIs on day-evening-night & night noise, exposed population, population with sleep disturbance; Air, with KPIs on CO2, NOx, NO2 and PM10 emissions; Water, with KPIs on water quality and salting of roads; and Natural resources and GHG emissions, with KPIs on resource consumption and CO2e calculation. The project outputs were a set of e-KPIs produced after a comprehensive investigation of the state of the art during the project. The main benefit of this project is therefore to provide an applicable solution for the environmental assessment of different road infrastructure assets and to describe the expectations of different stakeholders in form of objective indicators. The ‘User Evaluation Trial’ phase of the project was used to gather feedback on the potential of e-KPIs to be used by national Road Authorities across Europe. Two Slovenian Road Authorities and one each from Denmark and Sweden were involved. The Slovenian Authorities provided input data for case studies, while all evaluated the proposed e-KPIs from their own perspective, taking into account national conditions and specificities.
Keywords: EVITA, environmental performance indicator, users’ feedback, stakeholder’ expectations
Published in DiRROS: 22.02.2024; Views: 271; Downloads: 151
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872. CoDEC : connected data for road infrastructure asset managementSukalpa Biswas, Jacques Proust, Tadas Andriejauskas, Alex Wright, Carl van Geem, Darko Kokot, António Antunes, Vânia Marecos, José Barateiro, Shubham Bhusari, Uros Jovanovic, 2021, published scientific conference contribution Abstract: Road infrastructure asset management is rapidly transforming into a digital environment where data accessibility, effective integration and collaboration and accessibility from different sources and assets are key. However, current asset management processes are not yet fully integrated or linked, and there are incompatibilities between various systems and platforms that limit the ability to integrate asset management with BIM. The CoDEC project has sought to understand the current status of information management for assets, including inventory, condition and new data sources such as sensors and scanning systems, to identify the challenges and needs for linking and integrating different data sets to support effective asset management. As a result, CoDEC has developed a data dictionary framework to help link/integrate static and dynamic data for the "key" infrastructure assets (road pavements, bridges, tunnels). This will enable BIM and Asset Management Systems (AMS) to exchange data and help optimise and integrate data management across systems and throughout the different asset lifecycle phases, from build to operation. This work will be followed up with three pilot projects to demonstrate the feasibility of integrating asset data from various sources through linked data/semantic web technology to build the connection between AMS and BIM platforms.
Keywords: CoDEC, asset managemen, asset data, data dictionary, linked data, BIM, ontology
Published in DiRROS: 22.02.2024; Views: 315; Downloads: 94
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873. Volumetric view on asphalt mixtureMarjan Tušar, Mojca Ravnikar Turk, Lidija Ržek, 2023, published scientific conference contribution Abstract: An asphalt layer consists of stone aggregates, binder and air voids. The content of air voids (Vmin and Vmax), the voids filled with bitumen (VFBmin and VFBmax), the content of air voids in stone aggregates (VMAmin and VMAmax) and volume content of bitumen (VBmin) should be determined for each type of asphalt mixture. The volumetric properties of asphalt layer listed above are important parameters for assessing the properties of asphalt and are usually first presented in the requirements for produced asphalt mixtures and built in asphalt layers. Visualization of volumetric properties is important for understanding the composition of the produced asphalt mixture. The most appropriate is a triangular representation of the volumetric requirements for three main components of asphalt layer (stone, bitumen and air).
Keywords: volumetric representation, asphalt mixture, void content, voids in aggregate
Published in DiRROS: 22.02.2024; Views: 217; Downloads: 96
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878. Primerjava visokoelastičnih lastnosti gumenih zmesi, merjenih z DMA in TMA : diplomsko deloLucija Marolt, 2023, undergraduate thesis Keywords: guma, gumene zmesi, DMA, TMA, DSC, FT-IR, visokoelastične lastnosti, diplomsko delo
Published in DiRROS: 21.02.2024; Views: 230; Downloads: 68
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879. PUR in geopolymerBarbara Horvat, Nataša Knez, Uroš Hribar, Jakob Koenig, Branka Mušič, 2024, complete scientific database of research data Abstract: The dataset supports the results shown in the tables and figures in the article entitled “Thermal insulation and flammability of composite waste polyurethane foam encapsulated in geopolymer for sustainable building envelope” (doi: 10.1016/j.jclepro.2024.141387). It contains measurements of fire-behaviour characteristics, thermal conductivity, the behaviour of the material in the electromagnetic field in relation to the frequency, mechanical and structural evaluation, as well as chemical and mineralogical analysis.
Keywords: measurements, waste polyurethane foam, polymeric flame retardants, alkali activated material, metakaolin, microwave irradiation, thermal-fire behaviour, mechanical strength
Published in DiRROS: 20.02.2024; Views: 358; Downloads: 195
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880. Assessment of differential expression of oncogenes in adenocarcinoma of stomach with fluorescent labeling and simultaneous amplification of gene transcriptsUroš Rajčević, Petra Hudler, Gordan Mijovski, Gregor Gorjanc, Georg Hölzl, Stanislav Repše, Robert Juvan, Milena Kovač, Christian G. Huber, Radovan Komel, 2007, original scientific article Abstract: Background. Gastric cancer is one of the leading malignancies with a poor prognosis and low survival rates. Although the mechanisms underlying its development are still unknown, there is a consensus that genetic instability, inactivation of tumor suppressor genes and over-expression of oncogenes are involved in the early and late stages of gastric carcinogenesis. In the present study we wanted to display differential expression of seven oncogenes,namely CCNE1, EGF, ERBB3, FGF4, HRG1, HGFR and TDGF1. Patients and methods. We employed a method based on the multiplex reverse transcription polymerase chain (RT-PCR) method with a fluorescence detection. Results. More than half of patients (74.3%) out of total 74 with gastric adenocarcinoma had over-expressed at least one oncogene, with the exception of FGF4, which was expressed in tumor tissue of less than one third of patients. 56.8% of the patients patients showed over-expression of two or more oncogenes. Conclusions. Patients with precancerous lesions had elevated levels of TDGF1 or cripto-1 (64.9%) and CCNE1 (57.1%), suggesting that they could be used as markers for an early detection of malignant changes in stomach. Finally, the fluorescent multiplex RT-PCR method could be of value for rapid assessment of oncogene mRNA levels in small samples of tumor or precancerous biopsies.
Published in DiRROS: 20.02.2024; Views: 212; Downloads: 52
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