Výsledky vyhledávání

INCREASING THE SIGNAL TO NOISE RATIO IN LOW-FIELD MR SCANNER AT DEPARTMENT OF NUCLEAR AND MEDICAL ELECTRONICS

Autor: Ewa Piątkowska-Janko, Piotr Bogorodzki, W. Obrębski, B. Sawionek, Michal Wieteska

Publikováno v: Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, Vol 7, Iss 1 (2017)

This article presents studies carried by laboratory of Biomedical and Nucleonic Computer Systems. Our research concerns improvement of quality of imaging in low-field MRI scanner with field strength of 0.23 T as well as development of techniques of p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::531153d545da2a5bb138a07ae3b3d711
https://ph.pollub.pl/index.php/iapgos/article/view/1303

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Heuristic maximization of the number of spanning trees in regular graphs

Autor: B. Sawionek, Jarosław Arabas, Jacek Wojciechowski

Publikováno v: Journal of the Franklin Institute. 343:309-325

This paper deals with the problem of finding graphs (directed and undirected) maximizing the number of spanning trees among the regular graphs with the same number of nodes and edges. The approach is based on heuristic algorithms such as k-optimal an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::806dbb59f1998aaa64f7242b07a8fa73
https://doi.org/10.1016/j.jfranklin.2006.03.012

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Symbolic large-signal simulation of switched circuits

Autor: J. Wojciechowski, B. Sawionek, Jiri Vlach, Z. Michalski

Publikováno v: Circuits Systems and Signal Processing. 17:321-334

To improve the simulation efficiency of switched circuits, it is advantageous to model their switching devices as short and open circuits. The disadvantage is that such models may cause inconsistent initial conditions (IIC), and Dirac impulses may ap

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::00aad3cfd6e07f71d363760a19e56e90
https://doi.org/10.1007/bf01202296

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Designing regular graphs with the use of evolutionary algorithms

Autor: B. Sawionek, Jarosław Arabas, Jacek Wojciechowski

Publikováno v: Proceedings of the 1999 Congress on Evolutionary Computation-CEC99 (Cat. No. 99TH8406).

The paper deals with a fundamental problem arising in the design of optimal networks-the maximization of the number of spanning trees. To make the problem computationally tractable, we consider a class of regular graphs. The problem is solved with th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::544de09571ce951488eb7cd62698b3c2
https://doi.org/10.1109/cec.1999.785497

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Synthesis of reliable networks in the presence of line failures

Autor: Jacek Wojciechowski, Jarosław Arabas, B. Sawionek

Publikováno v: ISCAS
Scopus-Elsevier

This paper is devoted to synthesis of reliable networks when nodes are perfect and links fail independently with the same probability. The All Terminal Reliability (ATR) model is used. When links are highly reliable the solution to the problem is kno

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e984e78fdd17b99342fc4956a579cdbe
https://doi.org/10.1109/iscas.2000.858835

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