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Publications from the year 2012
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A Paradigm for HV, MV, LV Distribution Grid Development Planning
- Jacek Klucznik
- Zbigniew Lubośny
In the literature, including that relating to businesses in the energy (and power) sector, the concept of these organizations’ operating paradigm may be found. The paper discusses the concept of the paradigm, with a focus on the power grid development planning paradigm. Against this background, issues related to energy security and power systems development trends and problems are presented. A new paradigm is proposed for distribution grid development planning. This paradigm is an original proposal of the authors.
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A Parallel Genetic Algorithm for Creating Virtual Portraits of Historical Figures
- Henryk Krawczyk
- Jerzy Proficz
- Tomasz Ziółkowski
In this paper we present a genetic algorithm (GA) for creating hypothetical virtual portraits of historical figures and other individuals whose facial appearance is unknown. Our algorithm uses existing portraits of random people from specific historical period and social background to evolve a set of face images potentially resembling the person whose image is to be found. We then use portraits of the person's relatives to judge which of the evolved images are most likely to resemble his/her actual appearance. Unlike typical GAs, our algorithm uses a new supervised form of textit{fitness function} which is affected by the evolution process. Additional description of requested facial features can be provided to further influence the final solution (i.e. the virtual portrait). We present an example of a virtual portrait created by our algorithm. Finally, performance of a parallel implementation developed for the KASKADA platform is presented and evaluated.
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A parametric method for preliminary determination of underwater vehiclesdeadweight
- Jan Michalski
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A Point Set Connection Problem for Autonomous Mobile Robots in a Grid
- Adrian Kosowski
- Ichiro Suzuki
- Pawel Zylinski
Consider an orthogonal grid of streets and avenues in a Manhattan-like city populated by stationary sensor modules at some intersections and mobile robots that can serve as relays of information that the modules exchange, where both module-module and module-robot communication is limited to a straight line of sight within the grid. The robots are oblivious and move asynchronously. We present a distributed algorithm that, given the sensor locations as input, moves the robots to suitable locations in the grid so that a connected network of all modules is established. The number of robots that the algorithm uses is worst case optimal.
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A prototype femtosecond laser system for precise micromachining
- Katarzyna Garasz
- Marek Kocik
- Robert Barbucha
- Mateusz Tański
- Jerzy Mizeraczyk
- Michał Nejbauer
- Czesław Radzewicz
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A Review of Antennas for Indoor Positioning Systems
- Luis Bras
- Nuno Borges Carvalho
- Pedro Pinho
- Łukasz Kulas
- Krzysztof Nyka
This paper provides a review of antennas applied for indoor positioning or localization systems. The desired requirements of thoseantennas when integrated in anchor nodes (reference nodes) are discussed, according to different localization techniques and theirperformance. The described antennas will be subdivided into the following sections according to the nature of measurements:received signal strength (RSS), time of flight (ToF), and direction of arrival (DoA). This paper intends to provide a useful guidefor antenna designers who are interested in developing suitable antennas for indoor localization systems.
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A role of destructive and non-destructive tests in creep damage Identification
- Zbigniew Kowalewski
- Tadeusz Szymczak
- Katarzyna Makowska
- Bolesław Augustyniak
Przedstawiono wyniki badań mjących zilustrować i określić rolę badań niszczących i nieniszczących w identyfikowaniu degradacji po pełzaniu
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A Special Issue on Ubiquitous Computing in Healthcare
- Jacek Rumiński
Przetwarzanie bez granic w opiece zdrowotnej jest szczególnie istotne w konteście starzejącego się społeczeństwa. W pracy przedstawiono omówienie roli przetwarzania bez granic oraz opisano powiązane dziedziny tematyczne i prezentowane w numerze specjalnym zagadnienia.
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A study on application of Smoothed Particle Hydrodynamics to multi-phase flows
- Kamil Szewc
- Anne Taniere
- Jacek Pozorski
- Jean-Pierre Minier
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A Substrate Integrated Waveguide (SIW) Bandpass Filter in A Box Configuration With Frequency-Dependent Coupling
- Łukasz Szydłowski
- Natalia Leszczynska
- Adam Lamęcki
- Michał Mrozowski
This letter presents the design of a microwave bandpass filter with frequency-dependent coupling implemented in substrate integrated waveguide (SIW) technology. The proposed filter implements a four-pole generalized Chebyshev filtering function with two transmission zeros. Resonators are arranged in an extended box configuration with dispersive coupling on a main signal path, which produces an extra zero in comparison to classical approaches. The frequency-dependent coupling is implemented as a shorted stub with an additional septum made from via-holes. Such modification allows better control of the positions of the resonant frequencies of coupled SIW cavities, as well as of the position of the transmission zero. The filter was fabricated in SIW technology and good agreement was achieved between the simulated results and those measured.
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A Survey of Ongoing Activities of Best Agers in latvia, Lithuania and Poland: The main Results and lessons from Germany
- Katarzyna Tubielewicz
- Arnis Sauka
- Hartwig Wagemeister
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A Tabu Search Algorithm for Optimization of Survivable Overlay Computing Systems
- Krzysztof Walkowiak
- Wojciech Charewicz
- Maciej Donajski
- Jacek Rak
Paradygmat obliczeń rozproszonych ostatnio zyskuje coraz większą uwagę, ponieważ zarówno instytucje przemysłowe, jak i uczelnie wymagają coraz większej mocy obliczeniowej do przetwarzania i analizy danych. Z uwagi na dużą podatność systemów obliczeń na awarie różnych typów (podobnie do systemów sieciowych), gwarancje przeżywalności niniejszych systemów są nieodzowne w celu zapewnienia nieprzerwanego działania usług. Z tego powodu, niniejsza praca koncentruje się na przeżywalnych systemach obliczeń wykorzystujących ochronę typu 1+1. Celem analizowanego systemu jest umożliwienie przydziału zadań węzłom obliczeniowym oraz wymiarowanie przepustowości łączy sieci w celu minimalizacji kosztu operacyjnego działania systemu (OPEX) przy spełnieniu wymagań dotyczących jego przeżywalności. Z uwagi na NP-zupełność rozpatrywanego problemu, w pracy zaproponowany został efektywny algorytm heurystyczny bazujący na podejściu ''Tabu Search''. Rozbudowane eksperymenty obliczeniowe zostały przeprowadzone w celu potwierdzenia efektywności proponowanego algorytmu heurystycznego w porównaniu z innymi algorytmami heurystycznymi oraz z narzędziem CPLEX umożliwiającym uzyskanie rezultatów rozwiązań optymalnych.
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A Taxonomy of Model-Based Testing for Embedded Systems from Multiple Industry Domains
- Justyna Zander
- Pieter J. Mosterman
This chapter provides a taxonomy of Model-Based Testing (MBT) based on the approaches that are presented throughout this book as well as in the related literature. The techniques for testing are categorized using a number of dimensions to familiarize the reader with the terminology used throughout the chapters that follow. In this chapter, after a brief introduction, a general definition of MBT and related work on available MBT surveys is provided. Next, the various test dimensions are presented. Subsequently, an extensive taxonomy is proposed that classifies the MBT process according to the MBT foundation (referred to as MBT basis), definition of various test generation techniques, consideration of test execution methods, and the specification of test evaluation. The taxonomy is an extension of previous work by Zander and Schieferdecker (2009) and it is based on contributions of Utting, Pretschner, and Legeard (2006). A summary concludes the chapter with the purpose of encouraging the reader to further study the contributions of the collected chapters in this book and the specific aspects of MBT that they address in detail.
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A Ubiquitous System Using Semantic Knowledge in Dynamic Service Integration
- Tomasz Dziubich
- Paweł Kaczmarek
- Sławomir Nasiadka
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A Virtualization-Level Future Internet Defense-in-Depth Architecture
- Jerzy Konorski
- Paweł Szałachowski
- Piotr Pacyna
- Grzegorz Kołaczek
- Zbigniew Kotulski
- Krzysztof Cabaj
Projekt Inżynieria Internetu Przyszłości obecnie realizowany w Polsce definiuje trzy równoległw Internety w ramach Systemu IIP. System ma architekturę 4-poziomową,, której częścią składową jest architektura bezpieczeństwa na poziomie 2. Pokazano, w jaki sposób kombinacja mechanizmów ''twardego'' i ''miękkiego'' bezpieczeństwa pozwala wytworzyć metryki zaufania poszczególnych węzłów, co prowadzi do eliminacji węzłów zachowujących się niepoprawnie. Przedyskutowano szeroko eksperymenty mające na celu badanie skuteczności mechanizmów tworzenia metryk w obecności przykładowych ataków na poziomie 2 Systemu IIP.
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abiotic degradation of chlorinated ethanes and ethenes in water
- Marek Tobiszewski
- Jacek Namieśnik
Introduction Chlorinated ethanes and ethenes are among themost frequently detected organic pollutants of water. Theirphysicochemical properties are such that they can contaminateaquifers for decades. In favourable conditions, they canundergo degradation. In anaerobic conditions, chlorinatedsolvents can undergo reductive dechlorination.Degradation pathways Abiotic dechlorination is usuallyslower than microbial but abiotic dechlorination is usuallycomplete. In favourable conditions, abiotic reactions bringsignificant contribution to natural attenuation processes.Abiotic agents that may enhance the reductive dechlorinationof chlorinated ethanes and ethenes are zero-valent metals,sulphide minerals or green rusts.Oxidation At some sites, permanganate and Fenton'sreagent can be used as remediation tool for oxidation ofchlorinated ethanes and ethenes.Summary Nanoscale iron or bimetallic particles, due to highefficiency in degradation of chlorinated ethanes and ethenes,have gained much interest. They allow for rapid degradationof chlorinated ethanes and ethenes in water phase, but theyalso give benefit of treating dense non-aqueous phase liquid.
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Absolute configurations of C34 and C35 of antibiotic niphimycin A
- Tomasz Laskowski
- Zbigniew Rafiński
- Paweł Sowiński
- Jan Pawlak
The relative configurations of four stereogenic centers of the C33-C42 fragment of niphimycin A were assigned as 2S*, 3R*, 4S* and 6S*, based upon 1H NMR analysis with double-quantum filtered COSY and nuclear Overhauser spectroscopy experiments. These data were then correlated with absolute configurations at C36 and C38 of niphimycin A, which were declared previously as 36S and 38S [3]. This allowed for the assignment of the absolute configurations at C34 and C35 of niphimycin A as 34S and 35R.
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Absolute configurations of C34 and C35 of antibiotic niphimycin A
- Tomasz Laskowski
- Zbigniew Rafiński
- Paweł Sowiński
- Jan Pawlak
The relative configurations of four stereogenic centers of the C33-C42 fragment of niphimycin A were assigned as 2S*, 3R*, 4S* and 6S*, based upon (1)H NMR analysis with double-quantum filtered COSY and nuclear Overhauser spectroscopy experiments. These data were then correlated with absolute configurations at C36 and C38 of niphimycin A, which were declared previously as 36S and 38S [3]. This allowed for the assignment of the absolute configurations at C34 and C35 of niphimycin A as 34S and 35R.
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Absolwent uczelni technicznej na rynku pracy - na przykładzie badań absolwentów Politechniki Gdańskiej z rocznika 2010
- Paweł Bykowski
- Marta Szeluga-Romańska
- Michał Tomasz Tomczak
- Paweł Ziemiański
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Acceleration of the discrete Green's function computations
- Tomasz Stefański
Results of the acceleration of the 3-D discrete Green's function (DGF) computations on the multicore processor are presented. The code was developed in the multiple precision arithmetic with use of the OpenMP parallel programming interface. As a result, the speedup factor of three orders of magnitude compared to the previous implementation was obtained thus applicability of the DGF in FDTD simulations was significantly improved.