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Number of results: 5
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Abstract

About 1600 joint fractures were measured in tillites of the Upper Hecla Hoek Formation on the southern shore of Bellsund. Measurements were collected in 12 areas between the Renardbreen and Tjörndalen. Ray diagrams and contour diagrams of joint fractures, and contour diagrams of joint fractures after rotation to pre-folding position were made for each area. The preliminary analysis of diagrams indicates 2 conjugated joint sets: ca. 60°—120° and 0°—30°. This joint system is probably older than folding and was originated under ENE—WSW to NE—SW stress.
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Abstract

In search for a path of development, some communities face internal factors deeply influencing the choice of development strategy. Such factor would be an environmental protection of the territory, as it may crucially limit industrial activity. Narol community, located in southeastern Poland, near the Ukrainian border (Podkarpackie Voivodeship), has landscape protection of several levels covering 100% of the territory, so the possible development could not consist on industrial investments. On the other hand the concerned region, Roztocze, is a recognized touristic area, but Narol was always rather out of its main tourists trails. Nevertheless its assets (nature reserves, landscape and monuments), would predestine Narol for a touristic destination. But, considering strong competition in the region, the distinguishing feature would be of importance. The municipality had recognized cultural tourism as a way Narol could adopt, and has started several activities aiming to transform Narol into a cultural centre of the region. This paper presents the study case of Narol municipality’s activities in the context of transferring neglected heritage into an activated agent of development – resulting in social and economic growth. Its’ aim is to research (based on the Narol example) a place of local heritage assets in development process: if, and how they can be used to increase community’s sustainable growth.
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Abstract

The article contains reflections on the role of reflexivity in contemporary education. The most important is to emphasize the importance of a pragmatic reflexivity in constructing the cultural identity of a young man. The majority of the text consists of references to the thoughts of Hans Georg Gadamer in the context of pragmatics of reflexivity. In conclusion, the author proposes a pedagogical definition of reflexivity.
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Abstract

This article describes the validation of a supercritical steam cycle. The cycle model was created with the commercial program GateCycle and validated using in-house code of the Institute of Power Engineering and Turbomachinery. The Institute's in-house code has been used extensively for industrial power plants calculations with good results. In the first step of the validation process, assumptions were made about the live steam temperature and pressure, net power, characteristic quantities for high- and low-pressure regenerative heat exchangers and pressure losses in heat exchangers. These assumptions were then used to develop a steam cycle model in Gate-Cycle and a model based on the code developed in-house at the Institute of Power Engineering and Turbomachinery. Properties, such as thermodynamic parameters at characteristic points of the steam cycle, net power values and efficiencies, heat provided to the steam cycle and heat taken from the steam cycle, were compared. The last step of the analysis was calculation of relative errors of compared values. The method used for relative error calculations is presented in the paper. The assigned relative errors are very slight, generally not exceeding 0.1%. Based on our analysis, it can be concluded that using the GateCycle software for calculations of supercritical power plants is possible.
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