Wyniki wyszukiwania - BazTech

1

The role of oil and natural gas in the context of low-emission transport by 2030

Prugar J., Węgrzyn P.

Energy Policy Studies

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2017

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No. 1 (1)

35--47

EN

Fossil fuels, mainly petroleum and natural gas, are dominant in the transport sector. The occurring climate changes, which are largely the result of exhaust emissions, must be slowed down. To achieve this, legal regulations have been introduced determining the development of alternative drives in transport while reducing the share of those present. The development of electromobility and clean gas technologies is a chance to reduce the share of diesel drives in the transport sector. The purpose of this article is to present the role of natural gas and crude oil in the perspective of 2030.

2

Zużycie tribokorozyjne warstw węgloazotowanych stali austenitycznej

Giza P., Węgrzyn P., Baranowska J.

Inżynieria Materiałowa

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2015

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Vol. 36, nr 6

454--458

PL

W pracy omówiono wyniki badań odporności korozyjnej i tribokorozyjnej stali austenitycznej poddanej węgloazotowaniu niskotemperaturowemu, podczas którego dochodzi do wytworzenia warstw dyfuzyjnych o dwustrefowej budowie skłądających się z węglowej i azotowej fazy S. Warstwy zostały wytworzone w atmosferach o dwóch różnych potencjałach azotowych z dodatkiem 2% acetylenu w temperaturze 400÷500°C. Czas procesu był stały i wynosił 5 h. Badania tribokorozyjne przeprowadzono w ruchu posuwisto-zwrotnym w 3% wodnym roztworze NaCl. Ponadto przeprowadzono badania potencjodynamiczne w roztworze NaCl. Otrzymane wyniki porównano z nieobrobioną stalą austenityczną. Zaobserwowano znaczące zwiększenie odporności tribokorozyjnej w przypadku stali obrobionej cieplno-chemicznie, zwłaszcza w temperaturze 450 i 500°C. Wszystkie badane warstwy cechowała odporność korozyjna porównywalna lub lepsza od stali austenitycznej.

EN

The paper presents results of the studies on the corrosion and tribocorrosion resistance of austenitic stainless steel subjected to low temperature carbonitriding. During such a process the diffusion layers is formed which consists of two sublayers composed of carbon and nitrogen S-phase. The layers were produced in two atmospheres with different nitrogen potential and with addition of 2% of acetylene at temperature 400÷500°C. Process time was constant and equal to 5 h. Tribocorrosion tests consisted of a reciprocating motion in a water solution of 3% NaCl. In addition, potentiodynamic studies were carried out in such a solution. The results were compared to those obtained for untreated austenitic stainless steel. A significant increase in tribocorrosion resistance was observed, in particular for steel treated at 450 and 500°C. Corrosion resistance of the layers was comparable to or better than that of austenitic stainless steel.

3

A serious game – a new training addressing particularly prospective memory in the elderly

Laskowska I., Zając-Lamparska L., Wiłkość M., Malicki M., Szałkowska A., Jurgielewicz A., Lewandowski P., Węgrzyn P., Roterman-Konieczna I., Izdebski P.

Bio-Algorithms and Med-Systems

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2013

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Vol. 9, no. 3

155--165

EN

A training in the form of a computer game that aims at improving five cognitive functions in the elderly has been developed: visuospatial memory, attention, memory for prose, working memory and prospective memory. It was devised as a collaboration among the Department of Cognitive Psychology in Warsaw, Department of Individual Differences Psychology in Bydgoszcz, Faculty of Physics, Astronomy and Applied Computer Science – Game Academy in Cracow, and Department of Human Psychology and Department of Psychiatry of Ludwik Rydygier Collegium Medicum in Bydgoszcz. This software is an example of the so-called serious games. To the best of our knowledge it is the first one to focus particularly on prospective memory. This is the first report concerning the present training, which is currently being elaborated. The next step in its development will be testing its validity.

4

Współczesne metody obsługi sieci kanalizacyjnej

Węgrzyn P.

Inżynieria Bezwykopowa

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2003

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nr 4

16-17