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Temperature distribution on a quad-core microprocessor and quad-core microprocessor / heat sink structure

100%

Gierczak M. , Stojek K. , Dziedzic A.

Przegląd Elektrotechniczny

2017

tom R. 93, nr 2

210--213

In this paper temperature distribution in a heat-sink was analyzed. Laboratory models of quad-core microprocessors (source of heat) were designed and fabricated. They were realized as four properly connected and supplied thick-film resistors, screen-printed on alumina substrate. Temperature distribution was monitored using thermovision camera.

W niniejszym opracowaniu przeprowadzono analizę rozpływu ciepła na radiatorze. Zaprojektowano i wykonano w tym celu laboratoryjny model procesora czterordzeniowego (źródło ciepła). Został on zrealizowany w postaci czterech odpowiednio połączonych rezystorów grubowarstwowych naniesionych techniką sitodruku na podłoża alundowe. Rozkład temperatury był monitorowany za pomocą kamery termowizyjnej.

Mycological monitoring of selected aquatic ecosystems in the context of epidemiological hazards. Drinking water

63%

Biedunkiewicz A. , Kowalska K. , Schulz L. , Stojek K. , Dynowska M. , Ejdys E. , Sucharzewska E. , Kubiak D.

Annals of Parasitology

2014

tom 60

nr 3

Many species of microfungi are reported in aquatic ecosystems with different frequency. Their number constantly fluctuates depending on the concentration of environmental and anthropogenic factors. Drinking water, tap and bottled, is essential for the proper functioning of the human body. It is also the main component of food and hence it should be safe for human health and free of contaminants. The mycological purity of tap water in two large cities in the region (Olsztyn and Ostrołęka) and a small village (Gągławki) as well as bottled, medium-mineralized and curative water stored under different conditions were tested. The laboratory investigations followed a pathway applied in diagnostic mycological laboratories. The conducted tests demonstrated that microfungi were found in tap water originating from the cities and in bottled water. The rural water supply system was free from contaminations. Eighteen species of microfungi were identified in tap water from Olsztyn and 9 species in tap water from Ostrołęka. In bottled water, 13 fungal species were detected. Exophiala spinifera and Debaryomyces hansenii were recorded in the water supply systems of both cities, while one common species, i.e. Aspergillus fumigatus, was identified in tap water from Ostrołęka and in bottled water. The conducted studies have significant practical implications, for instance in sanitary and epidemiological water evaluation and in medicine in the context of analysing the quality of drinking water in reference to health resorts and nosocomial infections.