Wyniki wyszukiwania - Biblioteka Nauki

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Przeglądowa Mapa Geomorfologiczna Podlasia, w skali 1:300 000

100%

Krzemiński J.

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tom T. 42

43--58

EN

The general geomorphological map of Podlasie, in the scale 1:300 000 represent distribution, spatial arrangement and origin landforms. The map gives knowledge about of the origin and age landforms. It’s very important for understanding of the particular development stage forming relief of Podlasie. To elaborate this map make use cartographic and remote sensing data. Very important was General Geomorphological Map of Poland in the scale 1:500 000, sheet of Warszawa, Geological Map of Poland in the scale 1:200 000, topographic map in the scale 1:100 000 and Landsat TM images in the scale 1:100 000. The aim was elaborate of the digital map. Elaborated map is the vector database about landforms of the Podlasie, recorded in ESRI shapefile format (*.shp.). The map legend is presented in table 1. On the end of this volume is CD with the Map in pdf format. General Geomorphological Map of Podlasie elaborated after concept and under professor Jan R.. Olędzki care in Department of Geoinformatics and Remote Sensing, Faculty of Geography and Regional Studies Warsaw University.

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Innowacyjna nawierzchnia z kostki kamiennej na Krakowskim Przedmieściu w Warszawie

51%

Sybilski D. , Krzemiński J. , Maliszewski M.

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tom nr 3

80-86

PL

Obecnie wraca moda na nawierzchnie z kostki kamiennej. Przedstawiona w artykule konstrukcja nawierzchni Krakowskiego Przedmieścia w Warszawie ukazuje możliwości wykonania trwałej nawierzchni z kostki kamiennej na podbudowie złożonej z dwóch warstw: asfaltowej i z kruszywa mineralnego z odprowadzeniem wody spod kostki drenami.

EN

Nowadays, fashion for stone pavement are coming back. Pavement structure of Krakowskie Przedmieście in Warsaw, presented in the paper, shows possibility of construction of durable pavement made of stones placed on two layer base, asphalt and mineral aggregate, with drainage of the water collected under the stones.

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Sintered nanosilver joints on rigid and flexible substrates

38%

Kiełbasiński K. , Szałapak J. , Młożniak A. , Teodorczyk M. , Pawłowski R. , Krzemiński J. , Jakubowska M.

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A Method Of Calculating Thermal Diffusivity And Conductivity For Irregularly Shaped Specimens In Laser Flash Analysis

38%

Szałapak J. , Kiełbasiński K. , Krzemiński J. , Młożniak A. , Zwierkowska E. , Jakubowska M. , Pawłowski R.

Metrology and Measurement Systems

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2015

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tom Vol. 22, nr 4

521--530

EN

The Low Temperature Joining Technique (LTJT) using silver compounds enables to significantly increase the thermal conductivity between joined elements, which is much higher than for soldered joints. However, it also makes difficult to measure the thermal conductivity of the joint. The Laser Flash Analysis (LFA) is a non-intrusive method of measuring the temperature rise of one surface of a specimen after excitation with a laser pulse of its other surface. The main limitation of the LFA method is its standard computer software, which assumes the dimensions of a bonded component to be similar to those of the substrate, because it uses the standard Parker’s formula dedicated for one-dimensional heat flow. In the paper a special design of measured specimen was proposed, consisting of two copper plates of different size joined with the sintered silver layer. It was shown that heat properties of these specimens can also be measured after modifying the LFA method. The authors adapted these specimens by masking the false heat signal sourced from the uncovered plate area. Another adaptation was introducing a correcting factor of the heat travel distance, which was calculated with heat-flow simulations and placed into the Parker’s formula. The heat-flow simulated data were compared with the real LFA measurement results, which enabled estimation of the joint properties, e.g. its porosity.

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Wielkoskalowa technologia wytwarzania nanoproszku srebra

32%

Pawłowski R. , Sobik P. , Halama O. , Nikiel W. , Jakubowska M. , Krzemiński J. , Kiełbasiński K. , Szałapak J.

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tom Vol. 56, nr 10

27-30

PL

W niniejszym artykule przedstawiono zagadnienie skalowania procesu produkcji nanoproszku srebra otrzymywanego metodą termicznej redukcji prekursora ze skali laboratoryjnej do skali przemysłowej. Omówiono metody oceny poprawności procesu skalowania produkcji. Przedstawiono również przykładowe zastosowania nanoproszku srebra jako głównego składnik past, farb i tuszy przewodzących. Ponadto uwagę skupiono na możliwości zastosowania farb nanosrebrowych do srebrzenia powierzchni aluminiowych jako alternatywy do procesów elektrochemicznych.

EN

In this article the author presents the issue of production process scaling of silver nanopowder obtained by means of precoursor thermal reduction from lab scale to industrial-scale. Methods of evaluation of production scaling process, as well as exemplary nanopowder administration (as main ingredient of pastes, paints and conductive inks) have also been discussed. Additionally, the author has highlighted the possibility of nanosilver paint application to silverplate the aluminium surfaces as an alternative to electro-chemical processes.