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Search results for: Erwin Elster
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Krzysztof Nyka dr hab. inż.
PeopleKrzysztof Nyka, received MSc (1986) PhD (2002) and DSc (2020) degrees in telecommunication and electrical engineering from the Faculty of Electronics, Telecommunications and Informatics (ETI) of Gdańsk University of Technology (GUT), Poland. He is currently an Associate Professor at the Department of Microwaves and Antenna Engineering, Faculty of ETI, GUT. Before his academic career, he worked for the electronic industry (1984-1986). Research...
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Characterization of fracture process in polyolefin fibre-reinforced concrete using ultrasonic waves and digital image correlation
PublicationThis study explores the monitoring of the fracture process in concrete beams and aims to characterize the evolution of damage in polyolefin fibre-reinforced concrete beams by utilizing the integrated application of two measurement techniques, digital image correlation and ultrasonic testing. The interpretation of registered wave time histories data was provided by the calculation of the magnitude-phase-composite metrics. An efficient...
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Characterization of corrosion in reinforced concrete beams using destructive and non-destructive tests
PublicationThe paper presents both non-destructive and destructive experimental tests on steel-reinforced concrete beams subjected to electrochemical corrosion. To examine the condition and behavior of the specimens, destructive tests were carried out, i.e., a three-point bending together with a modulated ultrasonic wave test. In addition, a series of non-destructive experiments were conducted, such as the potential measurement method, low-frequency...
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Modelling of Longitudinal Elastic Wave Propagation in a Steel Rod Using the Discrete Element Method
PublicationThe paper deals with the issue of modelling elastic wave propagation using the discrete element method (DEM). The case of a longitudinal wave in a rod with a circular cross-section was considered. A novel, complex algorithm consisting of the preparation of models and simulation of elastic waves was developed. A series of DEM models were prepared for simulations, differing in discretisation and material parameters. Additional calculations...
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Absorbing Boundary Conditions Derived Based on Pauli Matrices Algebra
PublicationIn this letter, we demonstrate that a set of absorbing boundary conditions (ABCs) for numerical simulations of waves, proposed originally by Engquist and Majda and later generalized by Trefethen and Halpern, can alternatively be derived with the use of Pauli matrices algebra. Hence a novel approach to the derivation of one-way wave equations in electromagnetics is proposed. That is, the classical wave equation can be factorized...
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Numerical Modeling of Hydrogen-Rich Gas Production From Gasoline Autothermal Reforming in a Plug Flow Reactor for Electric Vehicles
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Właściwości pigmentów kadmowych po narażeniach chemicznych i naświetlaniu promieniowaniem UV
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Study on properties of oxide pigments after environmental expositions Badania w�a�ciwo�ci pigment�w tlenkowych po nara�eniach �rodowiskowych
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MASTER BSR Transfer, Development and Implementation of a common vocational Training to Master in the Baltic Sea Region
ProjectsProject realized in Department of Management according to 2015-1-DE02-KA202-002372 agreement
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Andreas Hoff (ed.) (2011). Population Ageing in Central and Eastern Europe. Societal and Policy Implications. Farnham, UK & Burlington, VT, USA: Ashgate, 260 pp. ISBN 978 0 7546 7828 1 (hardback)
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Evaluation of the geranyl esters-containing pheromone traps used for monitoring Elateridae family beetles in crops Ocena pułapek feromonowych zawierających estry geranylu stosowanych do monitorowania chrząszczy z rodziny Elateridae w uprawach
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Authors’ Response to the Letter by Lamarca et al. Entitled “Temozolomide-Capecitabine Chemotherapy for Neuroendocrine Neoplasms: The Dilemma of Treatment Duration” Regarding “Activity and Safety of Standard and Prolonged Capecitabine/Temozolomide Administration in Patients with Advanced Neuroendocrine Neoplasms”
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Frontiers in Bioscience - Elite
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Eastern-European Journal of Enterprise Technologies [ Восточно-Европейский журнал передовых технологий ]
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Construction, production and evaluation of the diagnostic utility of a recombinant Toxoplasma gondii chimeric antigen MIC1-MAG1-MIC3
Open Research DataThe intracellular parasite Toxoplasma gondii has the ability to infect a wide range of warm-blooded animals, including humans. Currently, diagnosis of toxoplasmosis is based mainly on the use of the native antigens in enzyme immunoassay which allow for detection of IgG, IgM and IgA antibody classes. However, in some cases the performed studies give...
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Construction, production and evaluation of the diagnostic utility of a recombinant Toxoplasma gondii chimeric antigen MIC1-MAG1-ROP1
Open Research DataThe intracellular parasite Toxoplasma gondii has the ability to infect a wide range of warm-blooded animals, including humans. Currently, diagnosis of toxoplasmosis is based mainly on the use of the native antigens in enzyme immunoassay which allow for detection of IgG, IgM and IgA antibody classes. However, in some cases the performed studies give...
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Construction, production and evaluation of the diagnostic utility of a recombinant Toxoplasma gondii chimeric antigen MIC1-MAG1-AMA1
Open Research DataThe intracellular parasite Toxoplasma gondii has the ability to infect a wide range of warm-blooded animals, including humans. Currently, diagnosis of toxoplasmosis is based mainly on the use of the native antigens in enzyme immunoassay which allow for detection of IgG, IgM and IgA antibody classes. However, in some cases the performed studies give...
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Kooperacja w architektonicznym Studio
PublicationPublikacja jest zapisem procesu analityczno-projektowego i jednocześnie dydaktycznego, w wyniku którego ukształtowały się studenckie propozycje rozwiązań przestrzennych. Została podzielona na trzy części. pierwsza, teoretyczna w pierwszych dwóch rozdziałach przybliża założenia planowanej inwestycji w perspektywy potrzeb i planów rozwojowych Rumi oraz celów inwestora - formy Vulcan, specjalizującej się w szkoleniach w zakresie morskiej...
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Fluorescent analogs of trypsin inhibitor SFTI-1 isolated from sunflower seeds-synthesis and applications
PublicationThis article describes the synthesis and enzymatic study of newly synthesized analogs of trypsin inhibitors SFTI-1 that were fluorescent labeled on their N-terminal amino groups. Two fluorescent derivatives of benzoxazole (3-[2-(4-diphenylaminophenyl) benzoxazol-5-yl]-L-alanine[(4NPh(2)) Ph] Box-Ala and 3-[2-(2', 4', 5'-trimethoxyphenyl) benzoxazol-5-yl]-l-alanine-[2,4,5-(OMe)3Ph] Box-Ala) were used as efficient fluorescent labels....
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“ARTIFICIAL INTELLIGENCE – IN SEARCH FOR SYNERGY
EventsKonferencja poświęcona jest omówieniu stanu badań i zastosowań sztucznej inteligencji AI z wykorzystaniem technologii satelitarnych
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Developing Prognostic Models of Organization Evolution
PublicationThe work focuses on the problem of measuring evolution of IT organizations. Changes in business influence functioning of the IT organization. IT departments or companies must ensure that the needs of their parent company/customers will be met. Therefore they must constantly evolve. Following question can be raised: is it possible to support process of changes the IT organization to run it smoother, faster, easier but with reduced...
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The scope of fiscal decentralisation in EU countries: a comparative analysis
PublicationMotivation: Decentralization is one of the main challenges in public sector reform. In democratic countries the level of decentralisation in individual countries is not identical. The varying scope of decentralization affects the quality, quick and efficient decision-making by public leaders. Aim: Comparison of the extent of fiscal decentralisation in EU Member States; creation of groups of states with similar levels of decentralisation;...
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Cluster Computing-The Journal of Networks Software Tools and Applications
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European, Mediterranean and Middle Eastern Conference on Information Systems
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IEEE International Symposium on Cluster, Cloud and Grid Computing
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Lab-in-syringe as a practical technique for automatic microextraction: Evaluation by Blue Applicability Grade Index
PublicationLab-in-syringe (LIS) is a powerful automatic technique that is derived from sequential injection analysis. In LIS, a computer-controlled syringe pump is employed, and its syringe barrel serves as a mixing, reaction, and/or extraction chamber. Until now, the LIS concept has been efficiently employed for the automation of solid-phase microextraction and liquid-phase microextraction protocols as a front-end to a plethora of chromatographic...
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Tensile failure study of 3D printed PLA using DIC technique and FEM analysis
PublicationThe paper presents the experimental and numerical study of the failure behaviour of Fused Filament Fabricated (FFF) Polylactic Acid (PLA) samples subjected to tensile load. The examined samples are printed in flat orientation with 0◦, 45◦ and 90◦ raster angles. During the experiments the deformation of the specimens is continuously scanned with the 3D Aramis measuring system utilizing the digital imaging correlation technique,...
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Michał Sobaszek dr hab. inż.
PeopleMichał Sobaszek was born in Gdansk in 1984. In the summer of 2009, he received a Master degree in Materials Engineering at Gdansk University of Technology. Currently, he is an Assistant Professor at the Faculty of Electronics at the Gdańsk University of Technology. In 2018 he was honoured with the scholarship for the outstanding young researches by the Minister of Science and Higher Education of Poland. For more than 7 years, he...
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Master Seminar
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Otwarty dostęp do statystyk uczelni powinien być czymś normalnym! Wywiad z Benedettem Leporim, koordynatorem European Tertiary Education Register (ETER)
PublicationWywiad dotyczy wyzwań związanych z tworzeniem publicznie dostępnej i zharmonizowanej bazy obejmującej dane na temat poszczególnych instytucji szkolnictwa wyższego z krajów europejskich: European Tertiary Education Register (ETER) oraz możliwości wykorzystania jej do porównań międzynarodowych. Benedetto Lepori przekonuje w nim, że ogólny dostęp do danych na poziomie indywidualnych uczelni powinien być czymś normalnym. Dodatkowo...
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Influence of passive house technology on time and cost of construction investment
PublicationDue to the changes in the energy standards for housing in Poland there are many concerns. Is the standard required by the regulation achievable and if it is, then at what cost? There are many solutions to construct a building in line with the requirements of passive house technology. They are differentiated by price and time required for implementation. This study is based on the solution proposed by one of Polish companies, offering...
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An Improved Convolutional Neural Network for Steganalysis in the Scenario of Reuse of the Stego-Key
PublicationThe topic of this paper is the use of deep learning techniques, more specifically convolutional neural networks, for steganalysis of digital images. The steganalysis scenario of the repeated use of the stego-key is considered. Firstly, a study of the influence of the depth and width of the convolution layers on the effectiveness of classification was conducted. Next, a study on the influence of depth and width of fully connected...
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Pomiary georadarowe posadzki w Bazylice pw. Świętego Mikołaja w Gdańsku
PublicationCelem opracowania są badania diagnostyczne posadzki kościoła w poszukiwaniu pustek powietrznych w konstrukcji podłogi. Badania przeprowadzono przy użyciu metody georadarowej. Przeanalizowano oraz przedstawiono szczegółowe skany georadarowe powierzchni posadzki. Jako uzupełnienie badań georadarowych, w wybranych miejscach zastosowano metodę ultradźwiękową.
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Development of a method for identification of parameters and damage detection in additive manufactured composite elements using ultrasonic wave propagation
ProjectsProject realized in Katedra Wytrzymałości Materiałów according to UMO-2021/41/N/ST8/01348 agreement from 2021-11-26
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Do clusters help companies to "go green"? Experience of Polish National Key Clusters
PublicationThis study aims to explore cluster activity in the field of green transformation, taking into account the green, low-carbon and circular economy. Our intention was to identify the main green practices used by cluster organizations, which we showed through the lens of the attributes of both the cluster and the cluster organization. Through our study, we sought to answer the question: what is the role of cluster organizations in...
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ZMIANY STRUKTURY DEMOGRAFICZNEJ LUDNOŚCI – WYZWANIA DLA RYNKU PRACY
PublicationPolska, podobnie jak i inne kraje europejskie doświadcza w przyspieszonym tempie zmian demograficznych, które w krajach o rozwiniętych gospodarkach rynkowych rozpoczęły się w latach 60. XX wieku. Procesy nieodwracalne, związane ze starzeniem się społeczeństwa na początku zaobserwowano w Skandynawii, następnie proces ten objął kraje Europy Zachodniej, Europy Południowej, w latach 90. XX wieku – również Europę Środkową i Wschodnią....
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Chemiluminogenic acridinium salts: A comparison study. Detection of intermediate entities appearing upon light generation
PublicationThe nine derivatives of acridine-9-carboxylic acid (CMADs) capable for chemiluminescence (CL), representing various classes of compounds were isolated in a chemically pure state (assessed by RP-HPLC) and identified using high resolution mass spectrometry (ESI-QTOF) and magnetic resonance (1H NMR) techniques. Among them are aryl acridinium esters, containing certainly selected and located substituents in both aromatic systems, an...
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Modeling Study and Performance Investigation of a Thermoelectric Refrigerator
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Patrycja Szumała dr hab. inż.
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Typology of towns in the peripheries of Polish coastal regions: conclusions for urban policy
PublicationPeripheries means the land outside metropolitan areas. One of the main problemsin these areas is a lack of growth factors. Some towns can contribute to the developmentof these regions, because there are few such factors, and it is easier to create the newones, especially in urban policy.The subject of this paper is a typology of towns within the Polish peripheral coastalregions, limited to towns with more than 5 thousand inhabitants....
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FINANCIAL COMPARISON OF WESTERN BALKAN AND BALTIC SEA STATES USING THE CAMEL APPROACH
Publication• The aim - This article aims to compare the situation in the banking sectors of two regions, which due to their political and economic history have much in common. These are the Western Balkan States of Serbia, Croatia and Macedonia, and the Baltic Sea States of Lithuania, Estonia, and Latvia. • Methods - It presents three approaches to defining banking stability that can be found in the literature and carries out an initial...
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RSS-based DoA Estimation Using ESPAR Antennas and Interpolated Radiation Patterns
PublicationIn this letter, it is shown how an algorithm, which employs received signal strength (RSS) values in order to estimate direction-of-arrival (DoA) of impinging signals in wireless sensor network (WSN) nodes equipped with electronically steerable parasitic array radiator (ESPAR) antennas, can easily be improved by applying an interpolation algorithm to radiation patterns recorded in the calibration phase of the DoA estimation process....
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Interactions in Ternary Aqueous Solutions of NMA and Osmolytes—PARAFAC Decomposition of FTIR Spectra Series
PublicationIntermolecular interactions in aqueous solutions are crucial for virtually all processes in living cells. ATR-FTIR spectroscopy is a technique that allows changes caused by many types of such interactions to be registered; however, binary solutions are sometimes difficult to solve in these terms, while ternary solutions are even more difficult. Here, we present a method of data pretreatment that facilitates the use of the Parallel...
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Zbuduj i zbadaj 2 - teoretyczne i praktyczne aspekty technologii betonu i wytrzymałości materiałów
e-Learning CoursesKurs przeznaczony do realizacji zadań na potrzeby grantu dydaktycznego w ramach konkursu Uranium (edycja 3, 2023).
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Non-destructive Diagnostics of the Floor in the Gdańsk Crane Using Ground Penetrating Radar = Diagnostyka nieniszcząca posadzki w gdańskim Żurawiu z zastosowaniem metody georadarowej
PublicationThis paper presents the results of a ground penetrating radar (GPR) survey carried out at the Crane in Gdańsk. The measurements were conducted on the floor of the southern and northern towers. The aim of the experiment is to assess the possibility of detecting anomalies beneath the floor. The surveys were carried out in a non-destructive manner, using a georadar unit with 2 GHz and 400/900 MHz antennas. This paper compares the...
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Krzysztof Wach prof. dr hab.
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CONTRASTING MODERNISMS - ARCHITECTURE OF HARBOUR CITIES GDYNIA AND ALTONA
PublicationThe presentation of the exhibition “Architect Gustav Oelsner – Light, Air, Colour,”, which took place in Gdynia 1.04-29.05.2011, showed the clinker architecture of Gustav Oelsner in Altona. As a contrast to the white-plastered architecture of Gdynia, it provided an interesting background for the comparison of two different faces of modernism. The most important feature of the aesthetics of modernism was its cosmopolitan character,...
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Barriers to inter-company cooperation in clusters
PublicationClusters have proved to be an important source of competitiveness for the economic development of regions within the European Union. One of the main goals of cluster development is to stimulate cooperation between companies in one or a few related sectors. The stakeholders of a cluster, as well as the local economy, can derive many benefits from such cooperation. However, there are numerous barriers, which make it difficult for...
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APPLICATION OF APRIORI ALGORITHM IN THE LAMINATION PROCESS IN YACHT PRODUCTION
PublicationThe article specifies the dependence of defects occurring in the lamination process in the production of yachts. Despite great knowledge about their genesis, they cannot be completely eliminated. Authentic data obtained through cooperation with one of the Polish yacht shipyards during the years 2013–2017 were used for the analysis. To perform a simulation, the sample size was observed in 1450 samples, consisting of 6 models of...
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Standard deviation as the optimization criterion in the OptD method and its influence on the generated DTM
PublicationReduction of the measurement dataset is one of the current issues related to constantly developing technologies that provide large datasets, eg. laser scanning. It could seems that presence and evolution of processors computer, increase of hard drive capacity etc. is the solution for development of such large datasets. And in fact it is, however, the “lighter” datasets are easier to work with. Additionally, reduced datasets can...