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Inrush and short circuit current identification based on real-time spectral analysis with the use of the FPGA FFT processor
PublikacjaW artykule przedstawiono krótkookresową analize widmową prądu załączeniowego i prądu zwarciowego transformatora w czasie rzeczywistym z zastosowaniem procesora FFT zrealizowanego w FPGA. Otrzymane widmo ułatwia rozróżnienie rodzaju prądu, co może być zastosowanei do lepszego sterowania zabezpieczneiem różnicowo-prądowym. Określono tez teoretyczne przebiegi prądów dla przyjetego modelu transformatora. Przeprowadzono ponadto analizę...
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Stock Markets’ Reactions to the Announcement of the Hosts. An Event Study in the Analysis of Large Sporting Events in the Years 1976–2032
PublikacjaThis study attempts to estimate the impact of the announcements of hosts of large sporting events on domestic stock markets. The research problem is to establish a connection between the uniqueness of a sporting event and investors’ beliefs through stock price behavior. Using appropriate estimation windows, 13 different sporting events classified as large, including mega and major events, were tested. The obtained results show...
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Małgorzata Szopińska dr inż.
OsobyMałgorzata Szopińska rozwój naukowy rozpoczęła realizując pracę doktorską pod kierunkiem prof. dr hab. inż. Żanety Polkowskiej (Politechnika Gdańska, PG) oraz dr hab. Danuty Szumińskiej (Uniwersytet Kazimierza Wielkiego w Bydgoszczy) w Katedrze Chemii Analitycznej, kierowanej wówczas przez prof. dr hab. inż. Jacka Namieśnika. Pracę doktorską pt. „Charakterystyka czynników modyfikujących skład wód powierzchniowych na obszarach...
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Wieloznaczność w języku i tekście [Ambiguity in language and text]
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Relikty słowiańskiej ludowości w poezji Syrokomli
PublikacjaThe paper discusses two models of reading the works by Władysław Syrokomla – one from the era of Positivism, the other – from the era of Young Poland. It displays the canvas of Polish dualism in the author’s poetry. The paper explains its lineage in terms of ethnogenesis. It shows the genesis as the evocation of primeval religious substance of Pre-Slavic origin. The paper refers to the findings of cultural anthropology and religious...
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Production of essential oils from in vitro cultures of Caryopteris species and comparison of their concentrations with in vivo plants
PublikacjaThe chemical composition of hydrodistilled essential oils obtained from aerial parts and roots of selected Caryopteris (‘bluebeard’) species (C. incana, C. mongolica, Caryopteris 9 clandonensis), as well as the newly established in vitro shoot and adventitious root cultures of the above plants, was analyzed by gas chromatography– mass spectrometry. Essential oil content and composition differed significantly depending on the type...
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Phytoplankton in the Gulf of Gdańsk– microscope photos archive
Dane BadawczeHarmful blooms of cyanobacteria an dinoflagellates are recorded every year in various areas of the Baltic Sea. The data set contains photos of potentially toxic phytoplankton species found in the Gulf of Gdańsk and Puck Bay. These photos show potentialy toxic cyanobacteria and dinoflagellates observed in the surface water samples collected between 2010-2020....
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SEM micrographs and photos of salivary gland stones
Dane BadawczeThis dataset contains SEM micrographs and high-resolution photographs taken for salivary gland stones (sialolith) extracted during joint studies between Medical University of Gdansk and Gdansk University of Technology.
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Students, graduates and lecturers at non-public universities in 1997-2011
Dane BadawczeAt the beginning of the 2010/2011 academic year, there were 328 private universities educating 580.1 thousand students (i.e. 31.5% of all students). Compared to the previous year, there was a slight decrease in the number of non-public universities, moreover, the number of young people studying there decreased by 8.4%.
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Młode Miasto Gdańsk (1380-1455) i jego patrymonium
PublikacjaW monografii ustalono m.in.: 1) położenie strefy osadniczej Młodego Miasta i zasięg jego patrymonium, 2) liczbę i (w miarę możliwości) lokalizację obiektów sakralnych w tym ośrodku, 3) zmiany w statusie parafialnym kościoła św Bartłomieja, 4) przemiany demograficzne ośrodka młodomiejskiego, 5) związki elity politycznej Młodego Miasta z Głównym Miastem oraz ich kontakty z Zakonem, 6) rolę portu Młodego Miasta jako ośrodka pomocniczego...
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Social perception of technological innovations at sports facilities: justification for financing ‘white elephants’ from public sources? The case of Euro 2012 Stadiums in Poland
PublikacjaThe main purpose of the paper is to provide a monetary valuation of social benefits in connection with the hypothetical implementation of technological innovations at four Euro 2012 stadiums in Poland. Not only the construction of the sport’s arenas, but also the ongoing maintenance drain the pockets of Polish taxpayers. At the same time Euro 2012 stadiums remain underused, which familiarize the host cities with the concept of ‘white...
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Planning for the redevelopment of the Imperial Shipyard - a key eleemnt of Gdańsk waterfront
PublikacjaThis article deals with the planning and implementation of the new urban concept for the young city development structure in Gdańsk
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Short-range order structure and free volume distribution in liquid bismuth: X-ray diffraction and computer simulations studies
PublikacjaThe structure of liquid bismuth was studied by X-ray diffraction and computer simulation methods. The contraction of the atomic structure within the first coordination sphere in the temperature interval of 575- 1225 K is reported. The temperature dependencies of the coordination numbers and of the free volume are analysed. On the basis of the temperature dependencies of the free volume, the temperature dependencies of viscosity...
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Urinary Kidney Injury Molecule-1 but Not Urinary Neutrophil Gelatinase Associated Lipocalin Is Increased after Short Maximal Exercise
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Short‐term outcome following concurrent surgical treatment of ureteral ectopia and intrapelvic urinary bladder in nine neutered bitches
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The Effects of Host Plant Genotype and Environmental Conditions on Fungal Community Composition and Phosphorus Solubilization in Willow Short Rotation Coppice
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Modeling of Electrodynamic Phenomena in an Ultra-Rapid Inductive–Dynamic Actuator as Applied to Hybrid Short-Circuit Breakers - A Review Study
PublikacjaThis article is a study of the research development of electrodynamic phenomena occurring in ultra-fast electrodynamic drives. These types of linear drives are among the fastest, not only because of the huge accelerations achieved, but, above all, because of the extremely short reaction time. For this reason, electrodynamic drives are used in hybrid short-circuit breakers. The phenomena occurring in this type of drive are actually...
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Sławomir Jerzy Ambroziak dr hab. inż.
OsobySławomir J. Ambroziak urodził się w 1982 r. Uzyskał tytuł zawodowy magistra inżyniera w zakresie systemów i usług radiokomunikacyjnych w roku 2008, w 2013 r. uzyskał stopień doktora nauk technicznych w dyscyplinie telekomunikacja, w specjalności radiokomunikacja, natomiast w 2020 r. uzyskał stopień doktora habilitowanego. Od 2008 r. jest pracownikiem Katedry Systemów i Sieci Radiokomunikacyjnych na Wydziale Elektroniki, Telekomunikacji...
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Tomasz Zubowicz dr inż.
OsobyTomasz Zubowicz has received his M.Sc. Eng. degree in Control Engineering from the Faculty of Electrical and Control Engineering at the Gda{\'n}sk University of Technology (GUT) in $2008$. He received his Ph.D. Eng. (Hons.) in the field of Control Engineering from the same faculty in $2019$. In $2012$ he became a permanent staff member at the Department of Intelligent Control and Decision Support Systems at GUT and a member of...
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How personality traits, sports anxiety, and general imagery could influence the physiological response measured by SCL to imagined situations in sports?
Dane BadawczeThe data were collected to understand how individual differences in personality (e.g. neuroticism), general imagery, and situational sports anxiety are linked to arousal measuring with skin conductance level (SCL) in situational imagery (as scripted for sport-related scenes). Thirty persons participated in the study, aged between 14 and 42 years, with...
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Paweł Szymon Dąbrowski dr inż.
OsobyDr inż. Paweł Szymon Dąbrowski w latach 2004-2009 studiował na kierunku geodezja i kartografia na Uniwersytecie Warmińsko-Mazurskim w Olsztynie, gdzie uzyskał tytuł zawodowy magistra inżyniera. W latach 2009-2016 pracował w wykonawstwie geodezyjnym w Iławie i Gdańsku. Doświadczenie zawodowe zdobył on podczas realizacji inwestycji Pomorskiej Kolei Metropolitalnej, co pomogło mu w zdobyciu w 2015 r. geodezyjnych uprawnień zawodowych...
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Sports QUIZ
Kursy OnlineSPORTS QUIZ is addressed to current students of the Gdańsk University of Technology who, in the summer semester of the 2019/20 academic year, had compulsory physical education classes. To get credit you must get at least 50% of points. SPORTS QUIZ contains 52 questions about knowledge of 28 sports. The questions may take the form of single-choice or multiple-choice questions. In matters related to the completion of physical...
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Łukasz Skarżyński dr hab. inż.
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“Dilute & Shoot” approach for rapid determination of trace amounts of nicotine in zero-level e-liquids by reversed phase liquid chromatography and hydrophilic interactions liquid chromatography coupled with tandem mass spectrometry-electrospray ionization
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“Dilute & Shoot” approach for rapid determination of trace amounts of nicotine in zero-level e-liquids by reversed phase liquid chromatography and hydrophilic interactions liquid chromatography coupled with tandem mass spectrometry-electrospray ionization
PublikacjaTwo analytical procedures are proposed where HILIC and RPLC techniques are coupled with tandem mass spectrometry detection for rapid determination of trace amounts of nicotine in zero-level liquids for electronic cigarettes. Samples are prepared on the basis of the approach “dilute & shoot” which makes this important step quick and not complicated. The chromatographic separation was carried out on a Zorbax XDB column (RPLC method)...
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American Schools of Oriental Research
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Distinctive properties of Scots pine (Pinus sylvestris L.) originating from the Carpathian and Great Poland-Pomeranian of Nature and Forest Land
PublikacjaIn this paper values of properties of Scots pine, the fracture toughness and of shear yield stress in the shear zone are presented. Samples of Scotch pine (Pinus sylvestris L.) wood of two provenances from Poland were tested. These properties were determined from the values of cutting power obtained experimentally on the saw frame PRW-15M. The values of fracture toughness and shear yield stress based on the Atkins model for cutting...
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Spatial variability of throughfall in a stand of Scots pine (Pinus sylvestris L.) with deciduous admixture as influenced by canopy cover and stem distance
PublikacjaVegetation cover affects the amount of precipitation, its chemical composition and its spatial distribution, and this may have implications for the distribution of water, nutrients and contaminants in the subsurface soil layer. The aim of this study was a detailed diagnosis of the spatio-temporal variability in the amount of throughfall (TF) and its chemical components in a 72-year-old pine stand with an admixture of oak and birch....
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Evaluati on of long-term start up costs impact on short-term price based operational optimization of a CCGT using MILP
PublikacjaAn increasing share of the weather-dependent RES generation in the power system leads to the growing importance of flexibility of conventional power plants. They were usually designed for base load operation and it is a challenge to determine the actual long-term cycling costs, which account for an increase in maintenance and overhaul expenditures, increased forced outage rates and shortened life expectancy of the plant and components....
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Personality traits in relation to anxiety and depressive symptoms in people who have undergone short-term psychodynamic psychotherapy in daycare conditions
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An automated learning model for twitter sentiment analysis using Ranger AdaBelief optimizer based Bidirectional Long Short Term Memory
PublikacjaSentiment analysis is an automated approach which is utilized in process of analysing textual data to describe public opinion. The sentiment analysis has major role in creating impact in the day-to-day life of individuals. However, a precise interpretation of text still relies as a major concern in classifying sentiment. So, this research introduced Bidirectional Long Short Term Memory with Ranger AdaBelief Optimizer (Bi-LSTM RAO)...
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Chemical Composition of Atmospheric Air in Nemoral Scots Pine Forests and Submountainous Beech Forests: The Potential Region for the Introduction of Forest Therapy
PublikacjaStudies show that forests are one of the main recreational destinations. This can be explained by their beneficial effects on the health of their visitors, which can be attributed to compounds from the terpene group. The aim of this research was to determine the chemical composition of air in the interiors of Nemoral Scots pine forests and submountainous beech forests, with the determination of compounds of the terpene group. Samples...
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Theoretical analysis and experimental tests of tilting pad journal bearings with shoes made of polymer material and low-boiling liquid lubrication
PublikacjaSelecting the appropriate bearing system for the rotor requires a good knowledge of the available solutions and the operating conditions of the machine. For newly designed machinery operating in adverse conditions, selecting bearings that ensure correct and long-lasting operation can be extremely challenging. Difficulties in- crease when the machine’s operating parameters are beyond the technical capabilities of available technical solutions....
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Thioamides and selenoamides with chirality solely due to hindered rotation about the C-N bond: enantioselective complexation with optically active hosts
PublikacjaBariera rotacji wokół wiązania C-N w tioamidach jest średnio o 3-5 kcal/mol wyższa niż w odpowiednich amidach, a w analogicznych selenoamidach wzrasta jeszcze o 1 kcal/mol. Dzięki temu związki te występują w dwu enancjomerycznych formach, których wzajemna przemiana zachodzi w wyniku rotacji wokół wiązań C-N. Bariera rotacji jest wystarczająco wysoka, aby można było podjąć próbę ich rozdziału na enancjomery w temperaturze pokojowej....
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Olgun Aydin dr
OsobyOlgun Aydin finished his PhD by publishing a thesis about Deep Neural Networks. He works as a Principal Machine Learning Engineer in Nike, and works as Assistant Professor in Gdansk University of Technology in Poland. Dr. Aydin is part of editorial board of "Journal of Artificial Intelligence and Data Science" Dr. Aydin served as Vice-Chairman of Why R? Foundation and is member of Polish Artificial Intelligence Society. Olgun is...
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Solid Phase Photocatalytic Reaction on the Soot/TiO2 Interface: The Role of Migrating OH Radicals
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From hobbies, straightforward analysis to serious research – the road to phd degree
PublikacjaThe illustration of the main articles goal is an example of author's academic career course, the aim of which is to obtain a doctoral degree in the field of geodesy and cartography. Today, the most important thing for the young scientist is the devotion to research in certain field of science, which is interested for the large community of scientists. From a psychological point of view, a unity of interest and experiments must...
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Rafał Lech dr hab. inż.
OsobyIEEE Senior Member #92122578 Rafał Lech urodził się w Elblągu w 1977 roku. W roku 2001 otrzymał tytuł magistra inżyniera, w roku 2007 stopień doktora nauk technicznych (z wyróżnieniem) a w roku 2018 stopień doktora habilitowanego nauk technicznych w dyscyplinie elektronika w Politechnice Gdańskiej. Obecnie pracuje w Katedrze Inżynierii Mikrofalowej i Antenowej na Wydziale Elektroniki, Telekomunikacji i Informatyki w Politechnike...
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JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS
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Piotr Dalka mgr inż.
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English for Engineering Mechanics
Kursy OnlineThe activity of structural mechanics students' community FOREVER YOUNG aimed at improving practical skills in technical English
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Fibromatosis-like metaplastic carcinoma - Female, 65 - Tissue image [8120730007228551]
Dane BadawczeThis is the histopathological image of BREAST tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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New 2017 American Heart Association and American College of Cardiology guideline for hypertension in the adults: major paradigm shifts, but will they help to fight against the hypertension disease burden?
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Adenylate Kinase 4—A Key Regulator of Proliferation and Metabolic Shift in Human Pulmonary Arterial Smooth Muscle Cells via Akt and HIF-1α Signaling Pathways
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E-experiments in physics. Proper business process management, collaborative development process and project management guidance – remedy for avoiding the main IT project’s failure
PublikacjaOnly a few of learning aids and simulations of physical phenomena allow for building interactive experiments; experiments similar to those that should be conducted in physics laboratories at schools. Group of staff from Gdansk University of Technology decided to fill this market niche by designing and constructing a set of virtual experiments – so called e-experiments. To avoid common problems that a lot of IT products brought...
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Transient States during Short-circuit in a Line Powered by UPS and its Impact on Earth Fault Loop Impedance Measurement and Power Quality
PublikacjaThe short-circuit in a line powered by Uninterruptible Power Supply (UPS) during different UPS operation modes is presented in the article. The transient state condition related to the short-circuit in a line fed from double conversion On-line UPS is discussed in detail. The results of the measurements of earth fault loop impedance (FLI) in circuits powered by UPS with the instruments of various manufacturers are presented. The...
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A five-year retrospective study shows increasing rates of antimicrobial drug resistance in Cabo Verde for both Staphylococcus aureus and Escherichia coli
PublikacjaObjectives Data on baseline drug resistance is important in informing future antimicrobial stewardship programs. So far, no data on the antimicrobial drug resistance of clinical isolates was available for the African archipelago of Cabo Verde. Methods We have performed a retrospective analysis over five-years (2013-17) of the antimicrombial drug susceptibility profiles of clinical isolates in the two main hospitals of Cabo Verde....
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A five-year retrospective study shows increasing rates of antimicrobial drug resistance in Cabo Verde for both Staphylococcus aureus and Escherichia coli
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The Effect of Submaximal Exercise Followed by Short-Term Cold-Water Immersion on the Inflammatory State in Healthy Recreational Athletes: A Cross-Over Study
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Time- and Dose-Dependent Effects of 17 Beta-Estradiol on Short-Term, Real-Time Proliferation and Gene Expression in Porcine Granulosa Cells
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