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Experimental study on the effectiveness of polymer dampers in reduction of structural vibrations
PublicationVibrations of civil engineering structures, generated by dynamic loads, may be very dangerous to the structures themselves as well as may have significant influence on human perception and comfort. A number of different methods have been proposed in order to minimize such situations. This concern newly designed structures as well as those which dynamic properties have to be modified due to problems with excessive vibrations. One...
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A fast procedure of stress state evaluation in magnetically anisotropic steels with the help of a probe with adjustable magnetizing field direction
PublicationThe paper presents a novel approach to the stress state evaluation issue. It deals with a strongly (magnetically) anisotropic materials for which a direct interpretation of the Barkhausen effect (BE) intensity would lead to erroneous results. In such a case one has to take into account both the measured BE intensity and the orientation of the magnetisation direction relative to the magnetic easy axis. For the in plane stress distribution...
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Experimental study on effectiveness of polymer dampers in reduction of structural vibrations
PublicationVibrations of civil engineering structures, generated by dynamic loads, may be very dangerous to the structures themselves as well as may have significant influence on human perception and comfort. A number of different methods have been proposed in order to minimize such situations. This concern newly designed structures as well as those which dynamic properties have to be modified due to problems with excessive vibrations. One...
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Taking advantage of symmetries: Gathering of many asynchronous oblivious robots on a ring
PublicationOne of the recently considered models of robot-based computing makes use of identical, memoryless mobile units placed in nodes of an anonymous graph. The robots operate in Look-Compute-Move cycles; in one cycle, a robot takes a snapshot of the current configuration (Look), takes a decision whether to stay idle or to move to one of the nodes adjacent to its current position (Compute), and in the latter case makes an instantaneous...
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A modified hat problem
PublicationThe topic of our paper is the hat problem in which each of n players is randomly fitted with a blue or red hat. Then everybody can try to guess simultaneously his own hat color by looking at the hat colors of the other players. The team wins if at least one player guesses his hat color correctly, and no one guesses his hat color wrong; otherwise the team loses. The aim is to maximize the probability of a win. There are known many...
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Krzysztof Wilde prof. dr hab. inż.
PeopleKrzysztof Wilde (born January 11th, 1966 in Gdańsk) – expert in bridge structures, structural mechanics and diagnostics of civil structures. He conducted research on vibration reduction systems for bridges exposed to dynamic loads from winds and earthquakes. At present he is interested in the field of nondestructive testing of materials and structural health monitoring systems. Hi is author or coauthor of over 200 publications...
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Toksyczność ekosystemu. W: Rzeka Bug, zasoby wodne i przyrodnicze. Pod red.J. Dojlido, W. Kowalczewskiego, R. Miłaszewskiego, J. Ostrowskiego. Warsza- wa: IMGW, Wyż. Szk. Ekol. i Zarz.**2003 s. 352-361, 4 rys. 2 tab. bibliogr. 5 poz. Seria Atlasy i Monografie
PublicationOmówiono wyniki badań ekotoksykologicznych prowadzonych w ramach ''Projektupilotowego wdrożenia wytycznych monitoringu i oceny jakości wód transgrani-cznych w zlewni rzeki Bug w ramach Konwencji EKO/ONZ w ochronie i użytkowa-niu cieków transgranicznych i jezior międzynarodowych''. Badania dotyczyły o-ceny ekotoksykologicznej wód, osadów i ścieków w zlewni rzeki Bug. Badaniadowodzą, że jakość ekotoksykologiczna wód i osadów...
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Hanna Rembowska, WETI, Inż dan, 1st, 4 sem, 2022/2023 l
e-Learning Courses -
Jarosław Nieszczółkowski, WILiŚ, Inż. Środowiska, I st., 4 sem., 21/22l
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Jarosław Nieszczółkowski, WILiŚ, Inż. Środowiska, I st., 3 sem., 22/23z
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Marek Adamczyk, WCH, Inż. Mat, I st, 5 sem, 2021/22z
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Ewa Jurkiewicz, WILIŚ, Inż Środowiska, st.II, sem.3, 21/22 l
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Iwona Mokwa-Tarnowska, inż mater., II st, 1 sem, 22/23l
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Budownictwo ogólne (W) I st. inż. sem. IV 2020/2021 (lato)
e-Learning CoursesBudownictwo ogólne (W) I st. inż. sem. IV 2020/2021 (lato) PG_00044180 przeznaczony dla studentów: Kierunek studiów: Budownictwo Poziom kształcenia: I stopnia - inżynierskie Rok akademicki realizacji przedmiotu: 2020/2021 Forma studiów: stacjonarne Rok studiów: 2 Semestr: 4 (letni)
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Hydrologia, meteorologia i klimatologia - IŚ, inż., niestacjonarne, sem. IV 2022/2023
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Krzysztof Lis, WCH, Inż. Mat, II st, 1 sem, 21/22l
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WEiA - Et. gr.2 i 6 - Matematyka (mgr inż. Dorota Żarek)
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Hydrologia, meteorologia i klimatologia - IŚ, inż., niestacjonarne, sem. IV 2021/2022
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Drogi i Autostrady I (Bud. sem V inż) - rok 2022/2023
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Ewa Bieńkowska ETI Inż Danych I st 5 sem 2022/ 23
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PROJEKTOWANIE URBANISTYCZNE 4_sem. 6 inż. 2021/22 DKZ,AR,WM,MI
e-Learning CoursesTransformacja dzielnic Gdańska. Opracowanie nowego programu funkcjonalno-przestrzennego dla trzech dzielnic Gdańska: Orunii Dolnej, Przeróbki i Olszynki. Badanie możliwości transformacji przestrzeni miejskiej, która utraciła swoje funkcjie. Projektowanie nowych przestrzeni publicznych w istniejącej tkance miejskiej oraz połączeń systemów zieleni pomiędzy dzielnicami. Projektowanie na styku miasta i wody (Motława, Martwa Wisła). Prowadzące...
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Materiały dydaktyczne dla Studentów Studiów Międzywydziałowych - autorstwo: dr inż. K. Winkelmann
e-Learning CoursesMateriały dydaktyczne dra inż. K. Winkelmanna wspólne dla Studiów Międzywydziałowych na Inżynierii Biomedycznej (WETI PG), Energetyce (WIMiO) oraz dla Studiów Stacjonarnych i Niestacjonarnych na Budownictwie i Inżynierii Środowiska (WILiŚ)
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Ben Sempek, WETI, inż dan, I st, 3 sem, 23/24z
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Konrad Radomyski, WILiŚ, inż śr, I st, 4 sem, 23/24L
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Statystyka, WA Gospodarka Przestrzenna, inż. sem. 3, rok akadem. 2023-24
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JolantaMaciejewska WILIŚ Inż Środ I st 3 sem 20/21 z
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Konrad Radomyski, WILiŚ, inż śr, I st, 3 sem, 23/24z
e-Learning Courses -
Hanna Rembowska, WETI, Inż danych, 1st, 4 sem, 2023/2024 l
e-Learning Courses -
Drogi i Autostrady I (Bud. sem V inż) - rok 2023/2024
e-Learning Courses -
Podstawy Statystyki laboratorium WZiE Zarz. Inż, stacjonarne, sem. zimowy 2023/24
e-Learning Courses -
Redefining quality and organizational maturity in 21st century
PublicationThe article presents new tendencies in quality management approach in the opinion of the one of the best known European quality expert Professor John Oakland
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Warsztaty Charrette w Płocku "Nowy Rynek - Nowe Pomysły"
PublicationW artykule zawarto omówienie warsztatów urbanistycznych jakie odbyły się w Płocku. Dotyczyły one kształtowania przestrzeni Nowego Rynku.
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Fragment prywatnego księgozbioru gdańskiego kupca George'a Tönnigesa zachowany w zbiorach Biblioteki Gdańskiej PAN
PublicationIn the present holdings of the Gdańsk Library of the Polish Academy of Sciences beside the historical book collections once belonging to Gdańsk patricians (e.g. J. Uphagen, M. Hanow, W. Schlieff and A. Rosenberg), there are remains of a less known private book collection belonging in the 18th century to George Tönniges, a representative of the Gdańsk patriciate. On the one side, these several prints, fortunately survived up till...
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TECHNOLOGY OF CREATING AND USAGE OF PROECOLOGICAL BLOCK EMPTYSEED
PublicationNowadays, finding natural substitutes for mass-produced materials is one of the main tasks faced by scientists and designers. There is an increasing emphasis on the theme of ecology and the need for sustainability. Variants and methods are sought which will create environmentally friendly materials in a fast, relatively inexpensive and ecological way. The aim of this paper is to present different proposals of natural building materials...
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Sparse vector autoregressive modeling of audio signals and its application to the elimination of impulsive disturbances
PublicationArchive audio files are often corrupted by impulsive disturbances, such as clicks, pops and record scratches. This paper presents a new method for elimination of impulsive disturbances from stereo audio signals. The proposed approach is based on a sparse vector autoregressive signal model, made up of two components: one taking care of short-term signal correlations, and the other one taking care of long-term correlations. The method...
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The accuracy of pulse rate estimation from the sequence of face images
PublicationThe goal of this paper is to analyze the accuracy of pulse rate estimation from the sequence of face images. Simulated and real signals were used to evaluate two pulse rate estimators; one for frequency domain and the second one for time domain using the autocorrelation function. The results show that the mean difference between the reference measurements and estimated pulse rate values are about 2bpm. In the analysis of short...
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Quantum superadditivity in linear optics networks: Sending bits via multiple-access Gaussian channels
PublicationSuperadditivity effects of communication capacities are known in the case of discrete variable quantum channels. We describe the continuous variable analog of one of these effects in the framework of Gaussian multiple access channels (MACs). Classically, superadditivity-type effects are strongly restricted: For example, adding resources to one sender is never advantageous to other senders in sending their respective information...
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Numeryczny sposób określenia temperatury czynnika chłodniczego po procesie sprężenia
PublicationTemperatura czynnika chłodniczego po sprężeniu jest istotna wielkością w pracy układu chłodniczego. Określa ona maksymalna wartość ciśnienia możliwą do uzyskania na jednym stopniu sprężania. Ponadto określa typy możliwych do wykorzystania sprężarek, a także konieczność ich chłodzenia. Podczas prac nad symulacjami układów chłodniczych niezbędny jest sposób jej wyliczenia. W pracy zaprezentowano autorską metodę określenia temperatury...
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Analiza impulsów prądowych towarzyszących rozwojowi drzewienia elektrycznego.
PublicationW referacie dokonano analizy impulsów prądowych towarzyszących rozwojowi drzewienia elektrycznego przy udarach nakładanych na napięcie przemienne. Obserwowano wyładowania niezupełne (wnz) w kanale drzewka w czasie narastania udaru. Ładunek pułapkowany w izolacji powodował wyładowania w czasie stanu przejściowego oraz przy napięciu przemiennym, dla którego wnz przy braku przepięć nie występują. Wyniki badań wskazują na istotny...
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Wojciech Sadowski prof. dr hab. inż.
PeopleWojciech Sadowski (born 2 February 1954 in Ostaszewo, Poland), scientist, engineer, professor at Gdansk University of Technology, specialist in solid state body physics, nanotechnology, optoelectronics. In 1973 he completed his high school education at High School Nicolaus Copernicus in Chelmno. In 1979 he graduate from Leningrad Electrotechnical Institute in Russia (former Soviet Union) with specialism in dielectrics and semiconductors....
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Number of selected entities (companies) of the national economy in 2008 - 2017
Open Research DataCurrently, most enterprises in Poland are run as sole proprietorships. In addition, natural persons running a business may run an enterprise as part of civil partnerships, which are a relatively simple form of business operation by more than one person (at least two partners). In addition, there is a growing interest in establishing commercial law companies,...
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Detection of UPEC IH11128 ability to form biofilm in a standard congo red (CR) method of colony staining.
Open Research DataA standard method of testing E. coli's ability to form biofilm is based on the analysis of morphologyof bacterial colonies grown on yeast extract/casamino acids (YESCA) nutrient agar medium containing congored (CR) as an indicator dye of ECM production. The CR dye adsorbed from the culture medium bybacteria binds to the components of the ECM, including...
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Sepulchral plate of Thomas Tympfius in St. Mary's Church in Gdańsk
Open Research DataThe data set concerns epigraphy. It refers to the sepulchral plate placed in St. Mary’s Church in Gdańsk which is dedicated to Thomas Tympfius, a minter who, together with his brother Andrew, rented several mints in the Kingdom of Poland, and gave his name to the timpf - the silver zloty released by the Tympfius mint. Unfortunately, as a result of...
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Three levels of fail-safe mode in MPI I/O NVRAM distributed cache
PublicationThe paper presents architecture and design of three versions for fail-safe data storage in a distributed cache using NVRAM in cluster nodes. In the first one, cache consistency is assured through additional buffering write requests. The second one is based on additional write log managers running on different nodes. The third one benefits from synchronization with a Parallel File System (PFS) for saving data into a new file which...
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Incomplete Cross-Bonding in the MV Line. Experience from the Operation of MV Single Cable Lines
PublicationCable lines are one of the basic components of power systems. Medium and high voltage cables mainly comprise a metallic sheath, which is concentric to the main core conductor. There are several operating schemes of such cable lines, which differ in the place of earthing of sheaths and the possible use of the sheaths and/or conductors crossing. The sheaths cross-bonding is typically done in two places of one cable line section,...
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Greencoin: prototype of a mobile application facilitating and evidencing pro-environmental behavior of citizens
PublicationAmong many global challenges, climate change is one of the biggest challenges of our times. While it is one of the most devastating problems humanity has ever faced, one question naturally arises: can individuals make a difference? We believe that everyone can contribute and make a difference to the community and lives of others. However, there is still a lack of effective strategies to promote and facilitate pro-environmental...
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Synthesis of bicoumarin thiophosphate derivatives as steroid sulfatase inhibitors
PublicationBased on the frameworks of 7-hydroxy-2,3-dihydro-1H-cyclopenta[c]chromen-4-one, 3-hydroxy- 7,8,9,10-tetrahydro-6H-benzo[c]chromen-6-one and 3-hydroxy-8,9,10,11-tetrahydro-7H-cyclohepta[c] chromen-6-one, a series of bicoumarin thiophosphate analogs have been synthesized and biologically evaluated. Additionally, their binding modes have been modeled using docking techniques. The inhibitory properties of the synthesized compounds...
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The Specific Nature of Chemical Composition of Water from Volcanic Lakes Based on Bali Case Study
PublicationThe research area was localized in the Indonesian Archipelago, at the latitude of eight and nine degrees S on the one of the Lesser Sunda group island provinces, Bali (563,3 km2). Two massive calderas (Mount Batur 1717 m above sea level.; Mount Sangiyang 2093 m above sea level) are one of the most prominent landforms in the chain of volcanic mountain ranges of the Bali Island. Lake Batur (17,18 km2) and Batur Spring (which are...
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Call Processing Performance in a Multidomain IMS/NGN with Asymmetric Traffic
PublicationIn this paper we continue our research using the previously proposed analytical traffic model of a multidomain Next Generation Network (NGN), which is standardized for delivering multimedia services based on the IP Multimedia Subsystem (IMS). The aim of the model is to assess mean Call Set-up Delay (CSD) and mean Call Disengagement Delay (CDD), which are standardized call processing performance parameters. The output variables...
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Mechanical behaviour of the implant used in human hernia repair under physiological loads
PublicationIn laparoscopic operations of abdominal hernias some recurrences still take place, even when applying a surgical mesh. This is usually caused by a failure of the connection between the tissue and the implant. The study deals with the influence of an implant’s orientation on forces in joints, which connect the mesh to human tissues. In the paper, the implant is modelled as a membrane structure within framework of the Finite Element...