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Andrzej Czyżewski prof. dr hab. inż.
PeopleProf. zw. dr hab. inż. Andrzej Czyżewski jest absolwentem Wydziału Elektroniki PG (studia magisterskie ukończył w 1982 r.). Pracę doktorską na temat związany z dźwiękiem cyfrowym obronił z wyróżnieniem na Wydziale Elektroniki PG w roku 1987. W 1992 r. przedstawił rozprawę habilitacyjną pt.: „Cyfrowe operacje na sygnałach fonicznych”. Jego kolokwium habilitacyjne zostało przyjęte jednomyślnie w czerwcu 1992 r. w Akademii Górniczo-Hutniczej...
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Place attachment, place identity, and visual pollution sensitivity.
Open Research DataThe data include individual responses on the following scales (1) place attachment, (2) place identity, and (3) visual pollution sensitivity. Each line represents responses obtained from one participant and his or her demographic characteristics. like gender, age, and education level.
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Studies on selectivity of hydrocarbon group type separation of petroleum vacuum distillates and base oils by HPLC.
PublicationW pracy przedstawiono wyniki badań nad doborem selektywnego chromatograficznego układu HPLC, umożliwiającego rozdzielenie grupowe produktów naftowych otrzymanych z destylacji próżniowej ropy naftowej, w tym, mineralnych olejów bazowych. Stwierdzono, że konieczny układ chromatograficzny wymaga wykorzystania dwóch kolumn wypełnionych żelem krzemionkowym ze związanymi grupami nitrofenopropylowymi, połączonych szeregowo z dwiema...
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Estimation of Screw Displacement Pile-Bearing Capacity Based on Drilling Resistances
PublicationThis article presents an engineering, empiricalmethod of estimating the bearing capacity and settlementcharacteristics Q-s of screw displacement piles andcolumns, based on soil resistance encountered during thedrilling to form piles/columns in the ground. The methodwas developed on the basis of correlation analyses of thetest results of 24 piles made during the “DPDT-Auger”research project (Krasiński et al., 2022a). In the proposedmethod,...
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Opracowanie procedury oznaczania lotnych produktów utleniania olejów roślinnychtechniką statycznej analizy fazy nadpowierzchniowej = The development of a new procedure for determination of volatile oxidation products in edible oils with the use of static headspace analysis
PublicationW publikacji przedstawiono dobór optymalnych parametrów w celu opracowania nowej metody diagnozowania jakości olejów poprzez oznaczenie lotnych związków będących produktami reakcji utleniania olejów. Próbki rafinowanych olejów roślinnych przed analizą poddano procesowi przyspieszonego utleniania, stosując naświetlanie promieniowaniem ultrafioletowym (12 W, 254 nm). Jako technikę ekstrakcji lotnej frakcji próbki zastosowano statyczną...
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Speed dependency of temperature effects on road traffic noise
PublicationRecently, a new literature review on the influence of temperature on tire/road noise became available, based on a compilation of large amounts of data from empirical research. This review showed that the effect of temperature is roughly double of that previously assumed and taken account of in international standards. This makes temperature one of the main sources of error in measurement results. Furthermore, it suggested that...
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Modern approach for determination of lactulose, mannitol and sucrose in human urine using HPLC-MS/MS for the studies of intestinal and upper digestive tract permeability
PublicationA new analytical procedure was described for the simultaneous determination of lactulose, mannitol and sucrose in urine, in which HILIC chromatography and tandem mass spectrometry detection are used. Sugars are orally administered for the estimation of intestinal permeability in children digestive tract. Samples were purified by dispersive solid phase extraction (d-SPE) using Amberlite MB150 resin. Raffinose was selected as an...
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Wyzwania związane z analityką surfaktantów obecnych w różnych elementach środowiska
PublicationSurfaktanty (Surface Active Agents, SAAs) stanowią grupę związków, które ze względu na swoje specyficzne właściwości fizykochemiczne (zdolność do tworzenia micelli, rozpuszczania się w cieczach polarnych i niepolarnych oraz adsorpcji na granicy faz), mogą być stosowane w różnych celach, zarówno w gospodarstwach domowych jak i w przemyśle. Szerokie spektrum zastosowania oraz specyficzne właściwości surfaktantów powodują konieczność...
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Enhanced boron doping of thin diamond films grown in deuterium-rich microwave plasma
PublicationThe boron-doped diamond thin films were growth in deuterium rich microwave plasma in CVD process. The mechanism of influence of plasma composition on boron doping level was studied using optical emission spectroscopy. Deuterium rich plasma results in an increased dissociation of B2H6 precursor and intense boron-radicals' production. In consequence, a higher doping level of diamond films was observed by means of Laser Induced Breakdown...
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An Optimal Power Point Tracking Algorithm in a Solar PV Generation System
PublicationThe non-linearity in I-V characteristics of a PV panel requires to be operated at knee point to extract maximum power. In order to operate the panel at optimal point, maximum power point tracking (MPPT) algorithm is employed in the control structure. The main objective of MPP tracking is to keep the operation at knee point of I-V characteristics under varying condition of temperature and solar insolation. Under non uniform solar...
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Load-settlement characteristics of piles working in a group
PublicationLoad-settlement characteristic (Q-s) of an axially loaded pile can be empirically determined from a static pile load test or on the basis of calculations using, e.g. transfer functions or numerical methods (FEM). The transfer functions method usually rely on empirical data, i.e. the function parameters are determined on the basis of numerous pile test results. Thus this method takes into account pile installation technology and...
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Collective creativity in management science
PublicationPurpose: The purpose of this paper is to establish the current state of knowledge on collective creativity in management science on the basis of a systematic literature review. Methodology: A systematic review was performed based on the three-step SPL procedure proposed by Tranfield et al. (2003). Two databases (Scopus and Web of Science) were searched electronically up until March 2022. Based on the secondary data a literature...
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Anisotropic mechanical behavior and auxeticity of penta-graphene: Molecular statics/molecular dynamics studies
PublicationWe investigate the mechanical properties of penta-graphene (PG), a recently proposed two-dimensional carbon allotrope using atomistic simulation techniques combined with the empirical description of interatomic interactions. We report on the dependence of its three in-plane mechanical moduli (i.e. Young's modulus, Poisson's ratio and shear modulus) on the deformation direction, strain and temperature. We show that PG displays a...
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Presence of antibiotics in the aquatic environment in Europe and their analytical monitoring: Recent trends and perspectives
PublicationThe presence of antibiotics and their metabolites in the aquatic environment exerts a negative impact on all organisms. Moreover, the easy migration of these substances to drinking water may also have serious consequences for public health, such as drug resistance. Although antibiotics and their metabolites are detected in surface waters and wastewater, there are still no systemic solutions preventing environmental pollution with...
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Introduction to MIP synthesis, characteristics and analytical application
PublicationOne of the trends in analytical chemistry is associated with designing and developing new types of sample preparation techniques, which might significantly increase the efficiency and selectivity of the analytes isolation or/and preconcentration process. One of the most widely employed solutions are selective sorption materials, defined as molecularly imprinted polymers (MIPs), as well as the sorbents with the molecular fingerprint....
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Wydawnictwo Muzyczne POLIHYMNIA Sp. z o.o.
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Instytut Prawa Gospodarczego Sp. z o.o.
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Medical Tribune Polska Sp. z o.o.
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Wydawnictwo Seidel-Przywecki Sp. z o.o.
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Joanna Czerska dr inż.
PeopleI am a woman whose mission and passion is the development of people and organizations. My motto is: "There is no such fantasy that human will and reason cannot transform into reality." William Shakespeare In my life I am guided by the values of respect, teamwork and a positive attitude. They define me and decide what kind of person I am. My adventure with Lean began when I was writing my diploma thesis during my studies at WZiE...
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Józef Kur prof. dr hab.
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Znaczenie potencjału energetycznego osadów ściekowych w aspekcie gospodarki o obiegu zamkniętym – przykład oczyszczalni w Gdańsku
PublicationW artykule przedstawiono ciepło spalania, wartość opałową oraz skład pierwiastkowy osadów ściekowych na kolejnych etapach przeróbki w oczyszczalni ścieków "Wschód" w Gdańsku. Osad ściekowy jest cennym źródłem energii. Średnia wartość ciepła spalania (HHV) osadów ściekowych w oczyszczalni ścieków w Gdańsku wynosi 14-15 MJ/kg dla osadów przefermentowanych i 17,5 MJ/kg dla osadów przed fermentacją. Niestety wysoka ich wilgotność,...
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Obwody i sygnały - laboratorium (2021/22)
e-Learning CoursesStrona z zasobami, tablicą ogłoszeń i dziennikiem ocen do zajęć stacjonarnych z przedmiotu Obwody i sygnały - laboratorium na sem. 3 studiów 1. stopnia na WETI PG dla kierunków EiT, AiR i IBm. Prowadzący: Czesław Stefański (cestef@pg.edu.pl) Realizatorzy: dr Marek Makowski, dr Czesław Stefański Zasadniczym celem Laboratorium w ramach przedmiotu Obwody i sygnały (OiS) jest nabycie przez studentów praktycznych umiejętności z zakresu...
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Magdalena Brzozowska-Woś dr hab. inż.
PeopleMagdalena Brzozowska-Woś is a graduate of the Faculty of Management and Economics of the Gdańsk University of Technology (specialization: management systems). She is also a graduate of Postgraduate Studies in Advertising (Faculty of Management and Economics, GUT) and Postgraduate Studies in Public Relations (SWPS University of Humanities and Social Sciences). In the years 2000-2003, she cooperated with Panorama Internet sp. z o....
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New user-guided and ckpt-based checkpointing libraries for parallel MPI applications
PublicationPraca prezentuje szczególy projektowe i implementacyjne jak również wyniki wydajnościowe dwóch nowych bibliotek checkpointingu opracowanych przez autorów dla równoległych aplikacji MPI. Pierwsz biblioteka, tzw. user-guided wymaga od programisty dostarczenia funkcji pakujących i rozpakowujących stan procesu, ale dostarcza łatwego w użyciu API z wykorzystaniem stałych MPI. Wykorzystuje funkcje I/O MPI-2 lub dedykowany proces master...
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Optimized conditions for hydrocarbon group type analysis of base oils by thin-layer chromatography - flame ionisation detection
PublicationW pracy przedstawiono wyniki badań nad opracowaniem optymalnych warunków oznaczania składu grupowego mineralnych olejów bazowych z wykorzystaniem chromatografii cienkowarstwowej oraz detektora płomieniowo-jonizacyjnego (TLC-FID). W przypadku mineralnych olejów bazowych, które otrzymywane są po wielu etapach rafinacji frakcji pochodzących z destylacji próżniowej ropy naftowej oznaczenie ich składu grupowego (z uwzględnieniem podgrup...
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Improving the CPX method by specifying reference tyres and including corrections for rubber hardnes and temperature
PublicationRecently completed work in the EU project ROSANNE and in working group ISO/TC43/SC1/WG33 has allowed substantial improvements to measurements made by the Close-Proximity (CPX) method, intended for measurement of noise properties of road surfaces.The paper summarizes the experimental work and describes the conclusions and implementation in ISO/FDIS 11819-2 (CPX method) and in the supporting ISO (draft) Technical Specifications 11819-3...
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Local impedance imaging of boron-doped polycrystalline diamond thin films
PublicationLocal impedance imaging (LII) was used to visualise surficial deviations of AC impedances in polycrystalline boron-doped diamond (BDD). The BDD thin film electrodes were deposited onto the highly doped silicon substrates via microwave plasma-enhanced CVD. The studied boron dopant concentrations, controlled by the [B]/[C] ratio in plasma, ranged from 1 × 1016 to 2 × 1021 atoms cm−3. The BDD films displayed microcrystalline structure,...
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Możliwości wykorzystania w praktyce analitycznej sorbentów polimerowych z odciskiem molekularnym do wyodrębniania i/lub wzbogacania analitów z grupy trwałych zanieczyszczeń organicznych z próbek środowiskowych
PublicationPrzedstawiono przegląd informacji, które się pojawiły w ciągu ostatniego okresu czasu dotyczących wykorzystania w codziennej praktyce analitycznej różnego typu rozwiązań metodycznych wykorzystujących na etapie izolacji i/lub wzbogacania analitów z grupy trwałych zanieczyszczeń organicznych (TZO) sorbentów polimerowych z odciskiem molekularnym (MIP). Tego typu sorbenty znalazły szerokie zastosowanie przede wszystkim jako alternatywne...
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Lipopeptides - synthesis and their properties
PublicationPrzedstawiono syntezę nowych peptydów zawierających Hyp, Met, Gly podstawionych w miejscu histydyny tripeptydu o sekwencji Gly-His-Lys oraz ich odpowiednie modyfikacje na N- i C-końcach. Syntezę zaprojektowanych analogów prowadzono na fazie stałej z zastosowaniem procedury Fmoc. Po otrzymaniu zaplanowanego łańcucha peptydowego metodą karbodiimidową (z zastosowaniem DIC oraz HOBt), przystąpiono do wprowadzania na N-koniec glicyny...
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Seabed Topography Changes in the Sopot Pier Zone in 2010–2018 Influenced by Tombolo Phenomenon
PublicationBathymetric surveys of the same body of water, performed at regular intervals, apart from updating the geospatial information used to create paper and electronic maps, allow for several additional analyses, including an evaluation of geomorphological changes occurring in the coastal zone. This research is particularly important in places where the shape of the coastal zone has been violently disturbed, including by human activity....
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Ultrasound-assisted heterogeneous activation of persulfate and peroxymonosulfate by asphaltenes for the degradation of BTEX in water
PublicationThis study investigated – for the first time - the simultaneous degradation of benzene, toluene, ethylbenzene and o-xylene (BTEX) by persulfate (PS) and peroxymonosulfate (PMS) activated by asphaltenes (Asph) under ultrasound (US) irradiation. Advantageous properties such as high thermal stability, low production cost and extensive availability make asphaltenes as an appealing carbonaceous material for heterogeneous catalysis....
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Smart Virtual Product Development: Manufacturing Capability Analysis and Process Planning Module
PublicationSmart Virtual Product Development (SVPD) system provides effective use of information, knowledge, and experience in industry during the process of product development in Industry 4.0 scenario. This system comprises of three primary modules, each of which has been developed to cater to a need for digital knowledge capture for smart manufacturing in the areas of product design, production planning, and inspection planning. Manufacturing...
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Baktericyna o aktywności gronkowcobójczej wytwarzana przez Staphylococcus xylosus - identyfikacja, oczyszczanie oraz wstępna charakterystyka
PublicationCelem badań prowadzonych w ramach realizacji niniejszej pracy była identyfikacja szczepów bakterii z rodzaju Staphylococcus produkujących substancje o działaniu przeciwbakteryjnym, w tym szczególnie bakteriocyny. W trakcie badań przesiewowych, których przedmiotem było 206 szczepów z kolekcji Katedry Technologii Leków i Biochemii Politechniki Gdaoskiej z gatunków Staphylococcus aureus, Staphylococcus epidermidis oraz Staphylococcus...
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Beata Basińska dr hab.
PeopleShe is a work and organizational psychologist. Her main research interests include occupational health psychology (job-related well-being and emotions) and positive organizational behaviour. She is an active participant of the European Academy of Occupational Health Psychology, European Association of Work and Organizational Psychology, European Health Psychology Society and the Division of Health Psychology, Polish Psychological...
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Tagged images with LEGO bricks - Bricks Sloped
Open Research DataThe set contains images of LEGO bricks (from Bricks Sloped category). The images were prepared for training neural network for recognition and labeling of LEGO bricks. The images contain one brick each. The images were taken from different sides by handheld camera hovering over the bricks lying on a white, non reflective surface.
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Tagged images with LEGO bricks - Tiles
Open Research DataThe set contains images of LEGO bricks (from Tiles category). The images were prepared for training neural network for recognition and labeling of LEGO bricks. The images contain one brick each. The images were taken from different sides by handheld camera hovering over the bricks lying on a white, non reflective surface.
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Tagged images with LEGO bricks - Windscreens and Fuselage
Open Research DataThe set contains images of LEGO bricks (from Windscreens and Fuselage category). The images were prepared for training neural network for recognition and labeling of LEGO bricks. The images contain one brick each. The images were taken from different sides by handheld camera hovering over the bricks lying on a white, non reflective surface.
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Tagged images with LEGO bricks - Bricks Special
Open Research DataThe set contains images of LEGO bricks (from Bricks Special category). The images were prepared for training neural network for recognition and labeling of LEGO bricks. The images contain one brick each. The images were taken from different sides by handheld camera hovering over the bricks lying on a white, non reflective surface.
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Tagged images with LEGO bricks - Bricks
Open Research DataThe set contains images of LEGO bricks (from Bricks category). The images were prepared for training neural network for recognition and labeling of LEGO bricks. The images contain one brick each. The images were taken from different sides by handheld camera hovering over the bricks lying on a white, non reflective surface.
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Tagged images with LEGO bricks - Technic Beams
Open Research DataThe set contains images of LEGO bricks (from Technic Beams category). The images were prepared for training neural network for recognition and labeling of LEGO bricks. The images contain one brick each. The images were taken from different sides by handheld camera hovering over the bricks lying on a white, non reflective surface.
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Tagged images with LEGO bricks - Technic Pins
Open Research DataThe set contains images of LEGO bricks (from Technic Pins category). The images were prepared for training neural network for recognition and labeling of LEGO bricks. The images contain one brick each. The images were taken from different sides by handheld camera hovering over the bricks lying on a white, non reflective surface.
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Tagged images with LEGO bricks - Minifig Accessories
Open Research DataThe set contains images of LEGO bricks (from Minifig Accessories category). The images were prepared for training neural network for recognition and labeling of LEGO bricks. The images contain one brick each. The images were taken from different sides by handheld camera hovering over the bricks lying on a white, non reflective surface.
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Tagged images with LEGO bricks - Plates
Open Research DataThe set contains images of LEGO bricks (from Plates category). The images were prepared for training neural network for recognition and labeling of LEGO bricks. The images contain one brick each. The images were taken from different sides by handheld camera hovering over the bricks lying on a white, non reflective surface.
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Tagged images with LEGO bricks - Technic Panels
Open Research DataThe set contains images of LEGO bricks (from Technic Panels category). The images were prepared for training neural network for recognition and labeling of LEGO bricks. The images contain one brick each. The images were taken from different sides by handheld camera hovering over the bricks lying on a white, non reflective surface.
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Tagged images with LEGO bricks - Pneumatics
Open Research DataThe set contains images of LEGO bricks (from Pneumatics category). The images were prepared for training neural network for recognition and labeling of LEGO bricks. The images contain one brick each. The images were taken from different sides by handheld camera hovering over the bricks lying on a white, non reflective surface.
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Tagged images with LEGO bricks - Technic Bricks
Open Research DataThe set contains images of LEGO bricks (from Technic Bricks category). The images were prepared for training neural network for recognition and labeling of LEGO bricks. The images contain one brick each. The images were taken from different sides by handheld camera hovering over the bricks lying on a white, non reflective surface.
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Tagged images with LEGO bricks - Technic Gears
Open Research DataThe set contains images of LEGO bricks (from Technic Gears category). The images were prepared for training neural network for recognition and labeling of LEGO bricks. The images contain one brick each. The images were taken from different sides by handheld camera hovering over the bricks lying on a white, non reflective surface.
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Tagged images with LEGO bricks - Panels
Open Research DataThe set contains images of LEGO bricks (from Panels category). The images were prepared for training neural network for recognition and labeling of LEGO bricks. The images contain one brick each. The images were taken from different sides by handheld camera hovering over the bricks lying on a white, non reflective surface.
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Tagged images with LEGO bricks - Technic Bushes
Open Research DataThe set contains images of LEGO bricks (from Technic Bushes category). The images were prepared for training neural network for recognition and labeling of LEGO bricks. The images contain one brick each. The images were taken from different sides by handheld camera hovering over the bricks lying on a white, non reflective surface.