Publications Repository - Gdańsk University of Technology

Page settings

polski
Publications Repository
Gdańsk University of Technology

Show publications from the year

Publications from the year 2015

Show all
  • Application of smart glasses for fast and automatic color correction in health care
    • Jacek Rumiński
    • Krzysztof Czuszyński
    2015

    In recent years different applications of smart glasses in health care have been proposed. In this paper we present the experiments related to automatic color correction using smart glasses platform developed within the eGlasses project. The color pattern is proposed and tested enabling the automatic detection of the pattern and automatic correction of colors. Additionally, the method for encoding and decoding of patient ID in the color pattern is presented. This enables automatic data integration using smart glasses connected to Hospital Information System or similar systems.

  • Application of Survey Simulator for Museums
    • Cezary Żrodowski
    2015

    “Virtual Museum” is currently a very popular form of presenting museums’ collections of artefacts as well as an approach to archaeological research [1], [2], [3]. The term “virtual” can be understood in many ways – from a simple collection of on-line photographs, through multidirectional viewable panorama pictures, to complete interactive models of the real world, including 3-dimensional (3D) geometry, physical properties and many other features exceeding traditional graphics definition. The approach called “Virtual Reality” (VR) presented in the paper uses the Survey Simulator application.

  • Application of the Boundary Element Method for the Simulation of Two-dimensional Viscous Incompressible Flow
    • Dzmitry Prybytak
    2015 Full text Archives of Hydro-Engineering and Environmental Mechanics

    The paper presents the application of an indirect variant of the boundary element method (BEM) to solve the two-dimensional steady flow of a Stokes liquid. In the BEM, a system of differential equations is transformed into integral equations. Thi smakes it possible to limit discretization to the border of the solution. Numerical discretization of the computational domain was performed with linear boundary elements, for which a constant value of unknown functions was assumed. The verification was carried out for the case of flow in a square cavity with one moving wall. The results obtained show that the use of approximations by simple linear functions is relatively easy for different shapes of the area, but the result may be affected by significant errors.

  • Application of the Msplitmethod for filtering airborne laser scanning data-sets to estimate digital terrain models
    • Wioleta Błaszczak-Bąk
    • Artur Janowski
    • Waldemar Kamiński
    • Jacek Rapiński
    2015 INTERNATIONAL JOURNAL OF REMOTE SENSING

    ALS point cloud filtering involves the separation of observations representing the physical terrain surface from those representing terrain details. A digital terrain model (DTM) is created from a subset of points representing the ground surface. The accuracy of the generated DTM is influenced by several factors, including the survey method used, the accuracy of the source data, the applied DTM generation algorithm, and the survey conditions. This article proposes the use of a new estimation method in the filtering of point clouds obtained from airborne laser scanning (ALS), provisionally called Msplit-estimation. The application of Msplit-estimation in ALS data filtering requires the determination of the appropriate functional model for the surface, which will be used in the filtering of the set of points. A polynomial terrain surface model was selected for this purpose. Two methods of filtering using the Msplit method are presented. The first is based on the estimated parameters of the polynomial describing the surface (called the ‘quality’ approach in the article). The second method (provisionally called the ‘quantity’ method) is carried out in two stages. The first stage is point cloud filtering, which results in two subsets being created. One of these is the subset of points intended for DTM creation, while the other contains the remaining points. The second stage of the approach is the creation of a DTM from the first subset. Since the Msplit method has an analytical character, the ATIN method was selected to verify the correct operation of the method. The ATIN method is based on computational geometry and uses repeated Delaunay triangulation and statistical evaluation of the geometric parameters. Comparison of Msplit with a method based on different principles mitigates errors arising from similarly functioning methods belonging to the same group of filters. The choice of the ATIN method was also dictated by its established position among filtering algorithms. The method is well-known, documented, and verified and this ensures that filtering by this method provides a reliable result that can serve as a reference for comparison with the proposed new filtering method.

  • Application of wavelet transform in analysis of guided wave propagation signals for damage detection in a steel plate
    • Beata Zima
    • Magdalena Rucka
    2015 Full text Diagnostyka

    The paper presents results of experimental investigations on damage detection using guided wave propagation technique. The tested specimen was a steel plate with a defect in the form of a rectangular notch. Lamb waves were excited by a PZT actuator and sensed by a laser vibrometer. Since reflections from damage in registered signals are often masked by measurement noise, for identification of time of reflections from damage, continuous wavelet transform (CWT) was used. Obtained results indicated that application of wavelet signal processing enabled precise reconstruction of reflected wavefront from damage.

  • Applying Decisional DNA to Internet of Things: The Concept and Initial Case Study
    • Haoxi Zhang
    • Cesar Sanin
    • Edward Szczerbicki
    2015 Full text CYBERNETICS AND SYSTEMS

    In this article, we present a novel approach utilizing Decisional DNA to help the Internet of Things capture decisional events and reuse them for decision making in future operations. The Decisional DNA is a domain-independent, standard and flexible knowledge representation structure that allows its domains to acquire, store, and share experiential knowledge and formal decision events in an explicit way. We apply this approach to our current work—SmartBike, a sensor-equipped bicycle built under the concept of Internet of Things. By using Decisional DNA and machine learning algorithms, the SmartBike is able to distinguish its user’s patterns based on past riding data. The presented conceptual approach demonstrates how Decisional DNA can be applied to the Internet of Things and bring to them intelligence required by forthcoming semantic networks.

  • Approach to evaluation of time to the critical degradation of ship pipelines
    • Roman Liberacki
    2015 Full text Journal of Polish CIMEEAC

    In the article an approach to the problem of estimating time to the critical degradation of ship pipelines is considered. Such an assessment would consist of six stages. The fundamental idea is to include to the estimation of time to failure of pipelines such elements like: materials that the pipelines are made, destructive physical phenomena taking place in them and applied means of protection. The result of that evaluation should be mean time to critical degradation of pipeline. The mean time should be given with the measure of the spread like the standard deviation. Another possibility is to express the time to failure in the form of a fuzzy number. This would indicate uncertainty of the estimation.

  • Approaches to Static Digestion Models
    • Alan Mackie
    • Neil Rigby
    • Adam Macierzanka
    • Balazs Bajka
    2015

    It is not possible to look in detail at the wide range of static digestion methods that have been used to date. However, this section looks at some of the general approaches that have been used to look at the digestion of various nutrients and bioactives. I have focussed on the two main nutrients that undergo digestion in the upper GI tract, namely protein and lipid. In the case of protein, the research has largely been driven by the need to assess allergenic potential and the parameters used in such an assessment are given along with the justifi cation provided by the authors for their choice. For the lipid digestion, we have drawn heavily upon the work of Julian McClemments and colleagues who have been prolifi c in generating data in this area. The information provided highlights the fact that a wide range of methods are in use leading to a need for a single method, a role that can be fi lled by the Infogest method.

  • Approaching Secure Industrial Control Systems
    • Rafał Leszczyna
    2015 Full text IET Information Security

    This study presents a systematic approach to secure industrial control systems based on establishing a business case followed by the development of a security programme. To support these two fundamental activities the authors propose a new method for security cost estimation and a security assessment scheme. In this study they explain the cost evaluation technique and illustrate with a case study concerning the assessment of the cost of information security assurance activities in a division of a Polish manufacturer of passenger and commercial tyres. They further present the steps of their security assessment scheme and demonstrate how they integrate with the overall approach for protecting industrial control systems.

  • APROKSYMACJE DE VYLDERA PRAWDOPODOBIEŃSTWA RUINY DLA MODELU Z CZASEM CIĄGŁYM W NIESKOŃCZONYM HORYZONCIE CZASOWYM
    • Karolina Tura-Gawron
    2015 Full text STUDIA OECONOMICA POSNANIENSIA

    Artykuł przedstawia przegląd badań oraz ewolucję aproksymacji De Vyldera. Metoda ta polega na zastąpieniu procesu ryzyka poprzez inny proces ryzyka z wykładniczym rozkładem szkód tak, aby momenty pierwszych trzech rzędów przyrostu dla obu procesów były jednakowe. Idea tego oszacowania została wykorzystana w aproksymacji 4-gamma De Vyldera, w której zastosowano zastąpienie procesu ryzyka procesem ryzyka z rozkładem gamma szkód, tak że cztery pierwsze momenty są jednakowe.

  • Aquaponics Based Artificial Biosphere Included in Architecture: From Mitigation of Negative Impacts to Positive Added Values of Urban Spatial Structures on Local, Regional and Global Scale
    • Piotr Marek Smolnicki
    2015

    Technologies may appear faster than spatial planning can afford it. Alt hough applying new technologies solve particular problems, it may also create new ones. Many negative consequences of implementing new technologies are visible a fter years or decades – they accumulate until the need of solving them. According to The Hannover Principles (McDonough & Braungart 2013) one should, by example not think about reducing but about eliminating negative impacts. Did we learn life- cycle management from this since 1992, and implement it correctly? Can we predict and eliminate negative side effects? Could we add a positi ve value to the neighbourhood? In this paper author will scrutinize selected applications of modern an d contemporary techniques and technologies influencing shaping of spatial structures and will emphasize their side effects in terms of urban, regional and global “health”. Author will propose contemporary local intervention and investment possibi lities on creating self-sustaining neighbourhoods and buildings. Its background will b e a new vision of architecture and spatial structures that include ideas i nspired from biosphere, e.g.: retrieving and capturing or circulation of CO 2 and nutrients. Author will present a concept based on aquaponics gardening that could be adapted to existing buildings and new designs. The concept design will not only reduce and eliminate emissions but also could have a positive impact on citizens ’ health and the whole city and its surrounding.

  • Architektura latarni morskich wczoraj i dziś
    • Piotr Marczak
    2015 Full text Logistyka

    Latarnie morskie jako znaki nawigacyjne są niezwykle interesującymi obiektami architektonicznymi. Smukłe formy wynikające z ich funkcji oraz specyficzna lokalizacja sprawiają, że są one charakterystycznymi punktami w krajobrazie nadmorskim. Identyfikują go wizualnie i stają się magnesem przyciągającym turystów. Latarnie morskie, jak wszystkie obiekty korzystające z rozwoju budownictwa i techniki zmieniały swoją formę, nie zmieniając funkcji znaków nawigacyjnych. Jednym z pierwszych takich znaków były blizy, proste konstrukcje, w których rozpalano ogniska. Na przestrzeni dziejów były one udoskonalane, aby osiągnąć formę wież z laternami elektrycznymi. Rozwój współczesnych systemów nawigacji powoduje, że często pierwotna funkcja tych obiektów zanika. Charakterystyczne pod względem formy i lokalizacji latarnie zmieniają swoją funkcję, a także stanowią inspirację dla inwestorów i architektów w projektowaniu innych budynków, budowli i form użytkowych.

  • Architektura Parametryczna/ Parametric Architecture
    • Kalina Juchnevic
    • Robert Juchnevic
    • Kacper Radziszewski
    • Emilia Marcinowska
    2015 Archivolta

    Pierwsze systemy CAD przeniosły tradycyjne sposoby projektowania do przestrzeni wirtualnej. Modelowanie algorytmiczne z kolei pozwoliło na wykonywanie powtarzających się zadań w sposób zautomatyzowany, a praca z wykorzystaniem tych narzędzi wymaga wypracowania nowego podejścia.

  • Architektura statków pasażerskich XX wieku.
    • Elżbieta Marczak
    2015 Full text Logistyka

    Architektura okrętów jako dyscyplina naukowa zajmuje się projektowaniem wnętrz oraz sylwet, jak również systematyką przestrzenną statków. Referat przedstawia rozwój architektury statków pasażerskich, które powstały w XX w. od momentu pojawienia się nowej dyscypliny naukowej – architektury okrętów, której prekursorami byli pracownicy Wydziału Architektury PG, aż do przełomu wieków XX i XXI. Statki pasażerskie ulegały przemianom, ze względu na wielkość, rodzaj napędu, estetykę sylwety i wnętrz oraz stosowanie rozwiązań proekologicznych. Istotnym aspektem projektowania statków było podniesienie standardów dotyczących komfortu oraz bezpieczeństwa pasażerów i załogi.

  • Archiwum Warszawskiej Szkoły Historii Idei
    • Andrzej Karalus
    • Przemysław Parszutowicz
    2015

    Artykuł służy jako wprowadzenie do warszawskiej szkoły historii idei. Autorzy rekapitulują historię tego kręgu akademickiego i krótko opisują jego metodologię. Podkreślone zostają więzi łączące szkołę warszawską z "Archiwum Historii Filozofii i Myśli Społecznej".

  • Arc-length Algorithm Efficiency in the Analysis of Thermally Loaded Multilayered Shells
    • Agnieszka Sabik
    • Ireneusz Kreja
    2015 Full text Engineering Transactions

    This paper concerns the efficiency study of the arc-length algorithm in the geometrically non-linear analysis of thermally loaded multilayered shells. The thermal loading is considered as the one-way thermo-mechanical coupling effect. Two implementations of the arc-length method are examined: the path-following technique available in NX-Nastran and the RiksWempner-Ramm algorithm adopted in the authors’ computer code SHLTH. It is shown that the appropriate unloading condition in each step of the analysis plays the crucial role in obtaining a proper solution. The algorithm offered in NX-Nastran tends to fail, whereas the authors’ code enables to find the solution in required temperature range.

  • Arctic as a reservoir for polycyclic aromatic hydrocarbons and polychlorinated biphenyls- water samples from Foxfonna glacier
    • Aneta Pacyna-Kuchta
    • Żaneta Polkowska
    2015

    Polycyclic aromatic hydrocarbons and polychlorinated biphenyls are groups of stable compounds, hard to biodegrade, potentially toxic. Their presence in Arctic environment may have a big impact on natural balance, fauna and flora. Although Arctic areas should be unpolluted, some amounts of pollutants are transferred from lower latitudes with sea currents and air masses. This paper presents the amounts of selected persistent organic pollutants detected in water samples from Svalbard

  • Are stabilizing osmolytes preferentially excluded from the protein surface? FTIR and MD studies
    • Piotr Bruździak
    • Beata Adamczak
    • Emilia Kaczkowska
    • Jacek Czub
    • Janusz Stangret
    2015 PHYSICAL CHEMISTRY CHEMICAL PHYSICS

    Interactions between osmolytes and hen egg white lysozyme in aqueous solutions were studied by means of FTIR spectroscopy and molecular dynamics. A combination of difference spectra method and chemometric analysis of spectroscopic data was used to determine the number of osmolyte molecules interacting with the protein, and the preferential interaction coefficient in presented systems. Both osmolytes – L-proline and trimethylamine-N-oxide (TMAO) – belong to a group of stabilizing osmolytes, and according to the preferential exclusion/hydration hypothesis, both should be excluded from the vicinity of the protein backbone and surface. We provide experimental and computational evidence that although TMAO behaves according to the hypothesis, proline does not. Our results suggest that preferential exclusion is not a universal property of stabilizing osmolytes.

  • Arm EMG Wavelet-Based Denoising System
    • Dawid Gradolewski
    • Piotr Tojza
    • Jacek Jaworski
    • Dominik Ambroziak
    • Grzegorz Redlarski
    • Marek Krawczuk
    2015

    These paper presents research results of muscle EMG signal denoising. In the same time two muscles were examined - an adductor muscle (biceps brachii) and an abductor muscle (tricpeps brachii). The EMG signal was filtered using the wavelet transform technique, having selected the crucial parameters as: wavelet basis function (Daubechies 4), 10 th decomposition level, threshold selection algorithm (Heurestic) and a sln rescaling function (based on scaled white noise). After denoising the signal, a short analysis of the outcome signal is performed. Such developed system has a wide application possibility, mainly in Mechatronic systems where it can be used for example in teleoperation of a robot arm, control signals for a prosthetic arm, biomedical signal filtering or in rehabilitation aiding robots.

  • Art of Space – Art in Space / The Role of Sound Art in Public
    • Justyna Borucka
    2015

    The article presents a discussion of the crossroad between art and architecture. It sketches out the theoretical and practical aspects of space revitalisation and improving its quality in the context of multisensory dimension of public spaces. The unique manifestation of art and creativity in public space could be detected and stimulated using participatory architecture, for instance interactive installations, projects related to the convergence of arts, projects and sound installations, as well as spatial sound. The analysis is based on examples of projects combining architecture and art in public space, with special emphasis on sound art, and their consequences for the perception of such a space. Specifically, it aims to understand how designing these spaces strengthen their potential to connect separated city areas, and how it plays a critical role in social integration. This study of the transformative role of architecture and its various consequences is no longer constrained to one field alone. Such research enters into related fields and particularly into the study of art. In this approach sound art plays a vital role. It is important to note that architecture is capable of discovering and portraying synergies between various forms of art. It can reflect the interplay between innovative technologies, architectural projects, landscapes, ecology, urban sociology issues as well as spatial and cultural strategies for urban redevelopment projects.