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Search results for: CIRCLE HOMEOMORPHISM
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The ability of children aged 6 and 9 years, respectively, to detect errors in a narrative based on incorrect information about evaporation in the water cycle
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Human red blood cells targeted metabolome analysis of glycolysis cycle metabolites by capillary electrophoresis using an indirect photometric detection method
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Triazoloacridone C-1305 abrogates the restriction checkpoint in cells lacking functional p53 and promotes their accumulation in the G2/M phase of the cell cycle
PublicationTriazoloakrydon C-1305, nowy inhibitor topoizomerazy II, wykazuje wysoką aktywość cytotoksyczną wobec komórek wielu typów nowotworów. Komórki mysie pozbawione genu PARP-1 wykazywały nadwrażliwość na działanie tego związku. W pracy testowaliśmy działanie związku wobec dwóch różnych komóek nowotworowych różniących się statusem p53: komórkami białaczki myelocytarnej HL-60 i raka sutka MCF-7. Wykazaliśmy, że inkubacja ze związkiem...
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Evaluation of the influence of the opening pressure of a marine Diesel engine injector on the results of numerical simulation of the working cycle and their comparison with the results of the laboratory experiment
PublicationThe article presents the results of a numerical simulation of the working process carried out in a diesel engine. In the applied utility program DIESEL-RK, the laboratory engine Farymann Diesel type D10 was implemented. A selected inoperability of its functional fuel supply system - reduced opening pressure of the injector pinj - was introduced. The values of adequate diagnostic parameters were determined: working gas temperature...
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An energetic analysis of a gas turbine with regenerative heating using turbine extraction at intermediate pressure - Brayton cycle advanced according to Szewalski's idea
PublicationIn this paper, a modification of a simple gas turbine into the Brayton cycle with regenerative heating, using turbine extraction at intermediate pressure, is presented. The main concept of the retrofitting is based on the transfer of heat from the turbine exhaust gases to the air entering the combustion chamber. The extracted gas transfers heat to air via the divided regenerative heat exchanger and after that is compressed and...
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Bogdan Pankiewicz dr hab. inż.
PeopleBogdan Pankiewicz graduated in 1993 from the Department of Electronics at Gdansk University of Technology (GUT) and in 2002 he obtained a doctoral degree in the field of electronics at the Faculty of Electronics, Telecommunications and Informatics at GUT. From the beginning of his career he is associated with GUT: first as an assistant (years 1994-2002) and then as assistant professor (since 2002) at the Faculty of Electronics,...
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Analiza cyklu życia modułu słonecznego i jego wpływ na środowisko = Life cycle analysis of a solar module and its ecological impact
PublicationSystemy fotowoltaiczne są odnawialnym źródłem energii elektrycznej, które w czasie eksploatacji nie emitują żadnych szkodliwych substancji, hałasu, nie zwiększają również efektu cieplarnianego. Wpływ każdego produktu na środowisko naturalne, w tym także systemów fotowoltaicznych, musi uwzględniać końcową fazę istnienia - okres po zakończeniu eksploatacji. Obecnie produkowane moduły ogniw fotowoltaicznych mają 25÷30-letnią gwarancję...
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Analysis of carboxylic acid metabolites from the tricarboxylic acid cycle in Bacillus subtilis cell extract by capillary electrophoresis using an indirect photometric detection method
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Functional safety and cyber security analysis for life cycle management of industrial control systems in hazardous plants and oil port critical infrastructure including insurance
PublicationThis report addresses selected methodological aspects of proactive reliability, functional safety and cyber security management in life cycle of industrial automation and control systems (IACS) in hazardous plants and oil port critical installations based on the analysis of relevant hazards / threats and evaluation of related risks. In addition the insurance company point of view has been also considered, because nowadays the insurer,...
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Down-regulation of DNA topoisomerase IIalpha leads to prolonged cell cycle transit in G2 and early M phases and increased survival to microtubule-interacting agents
PublicationInhibitory polimeryzacji mikrotubul wykazują preferencyjną toksyczność wobec komórek mitotycznych. W ramach tego projektu badaliśmy czy oporność komórek ludzkich białaczek na inhibitor mikrotubul, winkrystynę, prowadzi do zmian w regulacji progresji cyklu komórkowego. Nasze wyniki wskazują, że oporności na winkrystynę towarzyszą zmiany w długości fazy G2 i M w nieobecności i obecności inhibitora wrzeciona mitotycznego, nokodazolu....
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Ionic liquids as an effective and eco-friendly medium for synthesis of nitrosubstituted norbornene analogs Ciecze jonowe jako efektywne i przyjazne środowisku medium dla syntezy nitropodstawionych analogów norbornenu
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Energy, water detailed usage. Living lab testing for sustainable urban food-water-energy cycle.
Open Research DataData set contains detailed, continuous measurements of the usage of water and electrical energy (AC power) in an experimental facility set up in a scientific laboratory (Laboratorium im. B.Niemkiewicza) at the Faculty of Mechanical Engineering and Ocean Technology of the Gdansk University of Technology. The test bed was established in co-operation...
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Comparative Study of Pavement Rehabilitation Using Hot in-Place Recycling and Hot-Mix Asphalt: Performance Evaluation, Pavement Life Prediction, and Life Cycle Cost Analysis
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Comparative study of a bottoming SRC and ORC for Joule–Brayton cycle cooling modular HTR exergy losses, fluid-flow machinery main dimensions, and partial loads
PublicationEnergy conversion efficiency increase in power plants with high-temperature gas-cooled reactors via implementation of the bottoming cycle was investigated under nominal and minimal thermal load of a high-temperature reactor (HTR). Heat transfer surface area and turbine outlet volumetric flow rate in bottoming cycles was also investigated. Water and two low-boiling point working fluids (ammonia and ethanol) were analyzed. Analyzed...
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Design analysis of ORC micro-turbines making use of thermal energy of oceans
PublicationThe article presents the results of the analysis of energy conversion cycles making use of thermal energy of oceans. The objects of analysis were two cases of closed Organic Rankine Cycle (ORC) power plants, which were: the cycle in which the vapour of the working medium was produced by warm oceanic water in the circum-equatorial zone, and the so-called “arctic” cycle in which this vapour was produced by non-frozen water in the circumpolar...
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The most popular fields of study at full-time first-cycle studies and uniform master's studies in 2010/2011
Open Research DataUniversities try to adjust their didactic offer to the preferences of university candidates and the market situation. The socio-economic changes of the transformation period meant that specialists in the field of the market economy were in demand on the labor market. Subsequently, at universities, such fields as: "Management" or "Pedagogy" are ranked...
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Antitumor imidazoacridinone derivative C-1311 induces cell cycle arrest and cellular senescence-like phenotypic changes in human non-small lung A549 cancer cells
PublicationPrzeprowadzone badania miały na celu zbadanie rodzaju odpowiedzi komórkowej indukowanej przez pochodną C1311 w komórkach ludzkiego, niedrobnokomórkowego raka płuc A549, wyselekcjonowanych do badań ze względu na wysoką wrażliwość na działanie pochodnej C-1311. Wszystkie eksperymenty przeprowadzone zostały przy stężeniu hamującym proliferację komórek nowotworowych w 80%. Badania z wykorzystaniem techniki cytometrii przepływowej oraz...
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Energy, water detailed usage. Living lab testing for sustainable urban food-water-energy cycle. Jan. 2022
Open Research DataData set contains detailed, continuous measurements of the usage of water and electrical energy (AC power) in an experimental facility set up in a scientific laboratory (Laboratorium im. B.Niemkiewicza) at the Faculty of Mechanical Engineering and Ocean Technology of the Gdansk University of Technology. The test bed was established in co-operation...
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Energy, water detailed usage. Living lab testing for sustainable urban food-water-energy cycle. Dec. 2021
Open Research DataData set contains detailed, continuous measurements of the usage of water and electrical energy (AC power) in an experimental facility set up in a scientific laboratory (Laboratorium im. B.Niemkiewicza) at the Faculty of Mechanical Engineering and Ocean Technology of the Gdansk University of Technology. The test bed was established in co-operation...
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<p>Mechano-signalling, induced by fullerene C<sub>60</sub> nanofilms, arrests the cell cycle in the G2/M phase and decreases proliferation of liver cancer cells</p>
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Life cycle assessment - a new approach to the question of environmental strain caused by analytical laboratories = Ocena cyklu życia - nowe podejście do zagadnienia uciążliwości środowiskowej laboratorów analitycznych
PublicationPraca przedstawia wyniki porównawczej oceny cyklu życia dla procesów pozyskiwania ekstraktów końcowych metodą ekstrakcji w układzie ciecz - ciecz i ekstrakcji do fazy stałej. Rozważano jedynie aspekt ekologiczny pozyskiwania wyników, nie bacząc na koszty ekologiczne i inne. Badania oparte są na informacjach uzyskanych w określonym laboratorium analitycznym oraz danych zawartych w bibliotece programu SimaPro. Techniką bardziej przyjazną...
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Jerzy Kowalski dr hab. inż.
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UAV Survey Images - 3D Model - Gdansk Church Pw. Św. Wojciecha - MP2
Open Research DataDataset description: Raw images from photogrammetric survey. Object: Kościół Rzymskokatolicki Pw. Św. WojciechaLocation: Gdansk, Pomerania, PolandDrone type: DJI Mavic Pro 2Flight plan: Circle (Point Of Interest) + Free flightTarget Product: 3D ModelDate: 02.04.2022Direct georeferencing: yesMetadata data: yes/GPSGCP: YESGCP Quality: RTKCamera Name:...
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Łukasz Marcinkowski dr inż.
PeopleUrodził się 27 sierpnia 1986r. w Działdowie. W 2005 roku ukończył Liceum Ogólnokształcące im. Marii Dąbrowskiej w Żurominie. W tym samym roku rozpoczął studia na kierunku Technologia Chemiczna prowadzonym na Wydziale Chemicznym Politechniki Gdańskiej. W 2010 roku ukończył pierwszy stopień studiów uzyskując tytuł inżyniera, specjalność technologia organiczna, za pracę zatytułowaną „Weryfikacja empiryczna nowej metody wytwarzania...
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Wojciech Siwicki dr inż.
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Analiza strukturalna silanotiolanów : wpływ centrów kwasowych na zmiany w układzie wiązań SI-O-C oraz SI-S grupy sialkoksysilanotiolanowej w ciele stałym / J. Chojnacki.
PublicationW pracy przedstawiono wyniki badań strukturalnych silanotiolanów metali. Wyniki pochodzące z rentgenowskiej analizy strukturalnej zostały zinterpretowane w oparciu o rezultaty obliczeń kwantowo-mechanicznych. Wyznaczono 46 nowych struktur rentgenowskich silanotiolanów i przeanalizowano je łącznie z wynikami badań strukturalnych innych autorów. Zebrano i usystematyzowano wyniki rentgenowskiej analizy strukturalnej dla wszystkich...
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Terrestrial Laser Scan and Survey Images - 3D Model - Simulated Car Accident - MP1 - Reigl
Open Research DataDataset description: Raw images from photogrammetric and terresttial laser scaning survey. Object: Simulated Car AccidentLocation: Puck Pomorskie, PolandDrone type: DJI Mavic Pro 1Flight plan: Circle | Point Of InterestTarget Product: 3D ModelDate: 07.07.2017Direct georeferencing: yesMetadata data: Yes/GPSGCP: Yes - some targets on the object are marked...
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Enhancement of the Magnetic Coupling in Exfoliated CrCl 3 Crystals Observed by Low‐Temperature Magnetic Force Microscopy and X‐ray Magnetic Circular Dichroism
PublicationMagnetic crystals formed by 2D layers interacting by weak van der Waals forces are currently a hot research topic. When these crystals are thinned to nanometric size, they can manifest strikingly different magnetic behavior compared to the bulk form. This can be the result of, for example, quantum electronic confinement effects, the presence of defects, or pinning of the crystallographic structure in metastable phases induced by...
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FTIR spectra of reference SOFC fueled by H2 and 20ppm H2S/biogas mixture at 750 C - cyclic measurements (12h per cycle)
Open Research DataThe dataset contains the FTIR spectra collected during the cyclic measurements of H2S poisoning in DIR-SOFC without LSCNT layer. The H2S poisoning and H2 regenrating cycles were 12 h each. The spectra were collected every 10 min.
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FTIR spectra of SOFC with LSCNT layer fueled by H2 and 20ppm H2S/biogas mixture at 750 C - cyclic measurements (12h per cycle)
Open Research DataThe dataset contains the FTIR spectra collected during the cyclic measurements of H2S poisoning in DIR-SOFC with LSCNT layer. The H2S poisoning and H2 regenrating cycles were 12 h each. The spectra were collected every 10 min.
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Terrestrial Laser Scan and Survey Images - 3D Model - Palm House - MP1 - Leica
Open Research DataDataset description: Raw images from photogrammetric and terresttial laser scaning survey. Object: Palm House in Gdansk Oliwa ParkLocation: Gdansk, Pomorskie, PolandDrone type: DJI Mavic Pro 1Flight plan: Circle | Point Of InterestTarget Product: 3D ModelDate: 06.11.2018Direct georeferencing: yesMetadata data: Yes/GPSGCP: NoCamera Name: DJI FC220Lasser...
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Homo- i heteroleptyczne związki koordynacyjne metali przejściowych z pochodnymi imidazolu, ze szczególnym uwzględnieniem 4(5)-(β-hydroksyetylo)imidazolu – badania strukturalne i spektroskopowe w ciele stałym i roztworze
PublicationRozprawa doktorska porusza zagadnienia związane z syntezą oraz właściwościami związków koordynacyjnych metali przejściowych z pochodnymi imidazolu. Główna uwaga poświęcona jest 4(5)-(β-hydroksyetylo)imidazolowi — występującemu naturalnie ligandowi, będącemu hydroksylowym analogiem histaminy, o zwyczajowej nazwie histaminol. Praca skupia się na ligandach zbliżonych strukturalnie do 4(5)-(β-hydroksyetylo)imidazolu oraz wykazującymi...
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Low-dimensional bound entanglement with one-way distillable cryptographic key
PublicationIn this paper, we provide a class of bound entangled states that have positive distillable secure key rate. The smallest state of this kind is 4 circle times 4, which shows that peculiar security contained in bound entangled states does not need high-dimensional systems. We show that for these states a positive key rate can be obtained by one-way Devetak-Winter (DW) protocol. Subsequently, the volume of bound entangled key-distillable...
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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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Dual inhibition of PI3K/Akt signaling and the DNA damage checkpoint in p53-deficient cells with strong survival signaling: implications for cancer therapy
PublicationOporność komórek nowotworowych na leki uszkadzjące DNA związana jest ściśle ze zdolnością do utrzymywania blok z fazie G2 cyklu komórkowego. Blok ten regulowany jest przez mechanizmy punktu kontrolnego G2/M oraz szlaki przeżycia komórkowego. W pracy badaliśmy rolę szlaku kinazy PI3K/Akt w funkcjonowaniu punktu kontrolnego cyklu komórkowego i wpływ na przeżycie komórek traktowanych lekiem przeciwnowotworowym - cisplatyną. Nasze...
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The influence of G2 arrest abrogation on the long-term cytotoxicity of different genotoxic lesions
PublicationJak się uważa, zdolność komórek nowotworowych z uszkodzeniami DNA do zatrzymywania progresji w cyklu komórkowym w fazie G2 wydłuża czas na reperację tych uszkodzeń i zwiększa zdolność do przeżycia tych komórek. W pracy badaliśmy wpływ skrócenia bloku w fazie G2 w komórkach dwóch typów białaczek, poddanych działaniu związków przeciwnowotworowych indukujących różne typy uszkodzeń DNA, na efekt cytotoksyczny tych związków. Zwiększenie...
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Cancer stem cells and escape from drug-induced premature senescence in human lung tumor cells: implications for drug resistance and in vitro drug screening models
PublicationBadania z użyciem modelu komórek nowotworu płuc A549 wykazały, że komórki te po traktowaniu lekami uszkadzającymi DNA zatrzymują proliferację i wchodzą w stan starzenia komórkowego. Jednak post-inkubacja tych komórek prowadzi do powrotu do stanu proliferacji małej frakcji komórek. Wykazaliśy, że frakcja ta związana jest z obecnością komórek pierwotnych nowotworu w populacji komórek A549. Powrót do stanu proliferacji komóek A549...
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A mechanistically approached review upon assorted cell lines stimulated by athermal electromagnetic irradiation
PublicationThe probable influence of electromagnetic irradiation on cancer treatment has been deduced from the interaction of artificial electromagnetic emissions with biological organisms. Nonetheless, the suspected health effects induced by electromagnetic-based technology imply that such a treatment may contaminate the adjacent healthy cells. Thus, gaining mechanistic insights into the problem is required to avoid athermal health hazards....
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Evaluation of differences in expression pattern of three isoforms of the transforming growth factor beta in patients with lumbosacral stenosis
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Electrical performance measurement of reference and SOFC with LSCNT layer fueled by H2 and 20ppm H2S/biogas mixture at 750 C - cyclic measurements (12h per cycle)
Open Research DataThe dataset contains the electrical IV measurements collected during the cyclic measurements of H2S poisoning in DIR-SOFC with/-out LSCNT layer. The H2S poisoning and H2 regenrating cycles were 12 h each. The spectra were collected every 10 min.
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Ryszard Jan Barczyński dr hab. inż.
PeopleRyszard Jan Barczyński (b. 24 June 1957 in Gdańsk), Polish scientist, engineer, a specialist in solid state physics and electronic measurement techniques. In 1976, he obtained a high school diploma in the IV High School Tadeusz Kosciuszko in Torun. Higher education he graduated in 1981 at the Institute of Physics, Technical University of Gdansk in specialty of solid state physics, obtaining master's degree in engineering. Since...
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3D intact knee model used in analysis of the medial meniscus biomechanics in the osteoarthritic knee joint - input text file for computation
Open Research DataThe finite element method was used to simulate the stance phase of the gait cycle. An intact knee model with original geometry and material parametetrs was prepared based on magnetic resonance scans of the left knee joint of a healthy volunteer. The file was created in Abaqus 6.14-2, but can be read in a text editor.
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Stability analysis of interconnected discrete-time fractional-order LTI state-space systems
PublicationIn this paper, a stability analysis of interconnected discrete-time fractional-order (FO) linear time-invariant (LTI) state-space systems is presented. A new system is formed by interconnecting given FO systems using cascade, feedback, parallel interconnections. The stability requirement for such a system is that all zeros of a non-polynomial characteristic equation must be within the unit circle on the complex z-plane. The obtained...
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Marta Kuc-Czarnecka dr
PeopleMarta Kuc-Czarnecka is the deputy head of the Department of Statistics and Economics at the Faculty of Management and Economics of the Gdańsk University of Technology. She also serves as the Dean's proxy for AMBA accreditation. She is a co-founder of Rethinking Economics Gdańsk and a member of the Foundation Edward Lipiński for the promotion of pluralism in economic sciences. In 2018-2022, she was Eurofound’s quality of life and...
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3D model of osteoarthritic (OA) knee joint for analysis of the medial meniscus biomechanics - input text file for computation
Open Research DataThe finite element method was used to simulate the stance phase of the gait cycle. An intact knee model was prepared based on magnetic resonance scans of the left knee joint of a healthy volunteer. In the OA model thickness of articular cartilage and material parameters of the cartilage and menisci were reduced to simulate degenerative changes in the...
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3D knee model G with reduced thickness of articular cartilage - input text file for computation
Open Research DataThe finite element method was used to simulate the stance phase of the gait cycle. An intact knee model was prepared based on magnetic resonance scans of the left knee joint of a healthy volunteer. In the model G articular cartilage thickness was reduced in specific areas to simulate degenerative changes in the medial knee osteoarthritis. The file was...
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3D knee model M with decreased material parameters of the cartilage and menisci - input text file for computation
Open Research DataThe finite element method was used to simulate the stance phase of the gait cycle. An intact knee model was prepared based on magnetic resonance scans of the left knee joint of a healthy volunteer. In the model M the material parameters of cartilage and menisci were reduced to simulate degenerative changes in the medial knee osteoarthritis. The file...
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A Wideband Channel Model for Body Area Networks in Circular Metallic Indoor Environments
PublicationIn this paper, the wideband characterization of the propagation channel in circular metallic indoor environments is addressed, regarding Body Area Networks and 5G small cells, an analytical model for the dependence of the mean delay and the average delay spread on the circle radius, the working frequency and the distance between the transmitter and the receiver being proposed. The derivation of the model is initially done analytically,...
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Minimal number of periodic points with the periods less or equal to r in the smooth homotopy class of simply-connected manifolds of dimension 4 and homology groups with the sum of ranks less or equal to10
Open Research DataAn important problem in periodic point theory is minimization of the number of periodic points with periods <= r in a given class of self-maps of a space. A closed smooth and simply-connected manifolds of dimension 4 and its self-maps f with periodic sequence of Lefschetz numbers are considered. The topological invariant Jr[f] is equal to the minimal...
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Minimal number of periodic points with the periods less or equal to r in the smooth homotopy class of simply-connected manifolds of dimension 6 and homology groups with the sum of ranks less or equal to10
Open Research DataAn important problem in periodic point theory is minimization of the number of periodic points with periods <= r in a given class of self-maps of a space. A closed smooth and simply-connected manifolds of dimension 6 and its self-maps f with periodic sequence of Lefschetz numbers are considered. The topological invariant Jr[f] is equal to the minimal...