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Modeling of a Quasi-Resonant DC Link Inverter Dedicated to Common-Mode Voltage and Ground Current Reduction
PublikacjaIn this paper, the modeling methodology of the AC drive system with a Parallel Quasi-Resonant DC Link Inverter (PQRDCLI) is described. A presented modeling approach is an attractive tool used for the effective evaluation of a common-mode (CM) voltage and grounds current reduction methods. Designed models of inverter, induction machine (IM), and cable are simple, thus the methods for parameter extraction are not complicated. Verification...
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High temperature proton conduction in LaSbO4
PublikacjaLanthanum orthoantimonate was synthesized using a solid‐state synthesis method. To enhance the possible protonic conductivity, samples with the addition of 1 mol% Ca in La‐site, were also prepared. The structure was studied by the means of X‐ray diffraction, which showed that both specimens were single phase. The materials crystallized in the space group P2 1 /n. Dilatometry revealed that material expands non‐linearly with the...
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Mn-Co spinel coatings on Crofer 22 APU by electrophoretic deposition: Up scaling, performance in SOFC stack at 850 °C and compositional modifications
PublikacjaCeramic coatings for metallic interconnects play a key role in limiting corrosion and chromium evaporation in solid oxide cells. This study presents the upscaling of the electrophoretic deposition (EPD) technique to process Mn-Co spinels on real-dimension Crofer 22 APU interconnects and the test in a SOFC stack. Area specific resistance of long-term test conducted for 5000 h at 850 °C demonstrated that two-steps sintering has a...
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Work Safety and Ergonomics - L-15/C-0/L-0/P-0, Design and Production Engineering, WIMiO, undergraduate studies, engineering studies, full-time (stationary) studies, 2021/2022, se04, (M:32013W0), summer semester 2023/2024
Kursy OnlineWydział Mechaniczny Mechanika i budowa maszyn (w języku angielskim). Kurs: Specjalność: Design and Production Engineering (WM), I stopnia - inżynierskie, stacjonarne, 2018/2019 - zimowy (obecnie sem. 4), Semestr: 2019/2020 - letni. Student explains the concepts of ergonomics. Describes its goals and area of application. Defines the human - machine - environment system. Designs the human working environment taking into account...
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Stable Isotope Evidence for Late Medieval (14th–15th C) Origins of the Eastern Baltic Cod (Gadus morhua) Fishery
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WM - ZiIP - e-test 2019/20
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WM - MiBM - e-test 2018/19
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WM - ZiIP - Matematyka 2018/19 (M.Łapińska)
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WM - IMM - e-test 2018/19
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WM - DAPE - e-test 2018/19
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WM - ZiIP - e-test 2017/18
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WM - ZiIP - e-test 2018/19
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WM - DaPE - e-test 2019/20
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WM - IMM - e-test 2017/18
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WM - MiBM - e-test 2017/18
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WM - Mtr - e-test 2019/20
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WM - Mtr - e-test 2018/19
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Projektowanie Urbanistyczne II WM i JB
Kursy OnlineZajęcia projektowe przeznaczone na naukę̨ projektowania małego zespołu mieszkaniowego. Tematyka zajęć obejmuje opracowanie koncepcji zagospodarowania terenu przy byłej gazowni w Sopocie. Zadaniem studenta jest opracowanie wysokiej jakości zespołu mieszkaniowego oraz powiązań funkcjonalno- przestrzennych w ramach których teren gazowni odgrywa ważną rolę. W pobliżu terenu znajduje się urokliwy...
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WM - MiBM - Matematyka 2018/2019 (K.Dąbrowska)
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WM - MiBM - e-test 2019/20
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WM (IM-M) - Matematyka II (M.Łapińska)
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WM - IMM - Elementy algebry liniowej (M.Łapińska)
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Hydrogen bonding part sigma profile of deep eutectic solvents and pure components
Dane BadawczeThe set includes raw data of hydrogen bonding part sigma profiles of deep eutectic solvents and pure components generated by the ADF COSMO-RS software (SCM, Netherlands).
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Probing the Magnetic Anisotropy of Co(II) Complexes Featuring Redox-Active Ligands
PublikacjaCoordination complexes that possess large magnetic anisotropy (otherwise known as zero-field splitting, ZFS) have possible applications in the field of magnetic materials, including single molecule magnets (SMMs). Previous studies have explored the role of coordination number and geometry in controlling the magnetic anisotropy and SMM behavior of high-spin (S = 3/2) Co(II) complexes. Building upon these efforts, the present work...
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Mikrobiologia II - 2023-24
Kursy OnlineWykład przeznaczony dla: Specjalność: Biotechnologia molekularna (WCh), I stopnia - inżynierskie, stacjonarne, Rok: 4, semestr: 7 Prowadzący: dr hab. Beata Krawczyk, prof. uczelni (Bud. CHB, p.217); Przedmiot jest prowadzony w formie stacjonarnej (s.013; CHA-C), laboratoria będą prowadzone metodą tradycyjną na PG (sala 17, WCH C) (2x w tygodniu: poniedziałek+wtorek) kontakt z prowadzącym e-kurs: tel. 58 347-23-83; e-mail:...
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Electrical properties of Na2O-CaO-P2O5 glasses doped with SiO2 and Si3N4
PublikacjaSodium-calcium-phosphate glasses doped with SiO2 or Si3N4 having similar sodium ion concentrations were prepared by melt quenching. The conductivity was measured by impedance spectroscopy under nitrogen atmosphere in a wide frequency range (10 mHz–1 MHz) and wide temperature range (153–473 K). At 36.6 °C, DC conductivities of all glasses vary between 1.1 ∗ 10−12 and 8.9 ∗ 10−12 S cm−1 and have similar activation energies (between...
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Ionic conductivity behavior by activated hopping conductivity (AHC) of barium aluminoborosilicate glass–ceramic system designed for SOFC sealing
PublikacjaNon-conducting BaO-B2O3-Al2O3-SiO2 parent glasses designed for solid oxide fuel cell (SOFC) sealing applications were prepared using the melt-quenching technique. The glass formation region was determined according to phase equilibrium relations and was found to be in the composition range 70BaO-(x)Al2O3-(10−x)B2O3-20SiO2 where 3.0 < x < 6.0 wt%. The conductivity values obtained conductivity ranged from 10−5 to 10−10 S/cm at temperatures...
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Investigating BiMeVOx compounds as potential photoelectrochemical and electrochemical materials for renewable hydrogen production
PublikacjaIn this study, BiMeVOx compounds (where Me: Co, Mo, Ce, Zr) were synthesized and characterized as potential photoelectrochemical materials for solar water splitting, the hydrogen evolution reaction (HER), and oxygen evolution reaction (OER). The analysis confirmed the successful formation of phase BiMeVOx compounds with the desired crystal structure. Among the tested materials, BiCoVOx(800) showed the highest photocurrent density...
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Three-dimensional characterization of porosity in iron ore pellets: A comprehensive study
PublikacjaThis paper presents a comprehensive study on the production and reduction of high-quality iron ore pellets characterized by a basicity index nearing 0.5 and diameters ranging from 1 to 2 cm. The reduction process was carried out in a hydrogen atmosphere at temperatures spanning 800–1000 ◦ C and a pressure of 8 bar. Initial f indings revealed substantial variations in pellet density and compressive strength, attributed to their...
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Analysis of the effect of the seismic gap on the response of buildings experiencing pounding during earthquakes
PublikacjaThe aim of this paper is to investigate the effect of the seismic gap on the dynamic response of buildings experiencing earthquake-induced pounding. Three buildings have been analysed, which are 5-storey, 7-storey and 9-storey structures. Three possible pounding scenarios have been considered, which are pounding between 5-storey and 7-storey buildings, pounding between 5-storey and 9-storey buildings and pounding between 7-storey...
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Perspektywy rozwoju w Europie systemów sanitarnych z zastosowaniem toalet separujących
PublikacjaIstniejące technologie z tradycyjnymi toaletami zbiorczymi (WC), kanalizacją ogólnospławną (względnie rozdzielczą) oraz oczyszczalnią centralną niosą za sobą szereg wad i nie rozwiązują problemu gospodarki wodno-ściekowej. Ochrona wód bazuje nadal na filozofii "end-of-pipe" i oczyszczalniach komunalnych. Pomimo wysokiej efektywności oczyszczania ścieków, z obiegu przyrodniczego zostają po drodze usunięte wysoko wartościowe substancje...
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Synthesis and thermal studies of flexible polyurethane nanocomposite foams obtained using nanoclay modified with flame retardant compound
PublikacjaThis work presents thermal studies of nanocomposites based on the flexible polyurethane (PU) matrix and filled using montmorillonite organically modified with organophosphorus flame retardant compound. Flexible PU nanocomposite foams were prepared in the reaction carried out between reactive alcoholic hydroxyl and isocyanate groups with the ratio of NCO to OH groups equal to 1.05. The amount of an organoclay ranging from 3 to 9...
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Średniowieczny szczyt południowej części transeptu kościoła pocysterskiego w Oliwie
PublikacjaTransept kościoła pocysterskiego w Oliwie zawiera jedno z najciekawszych średniowiecznych zdobień architektonicznych. Występuje ono w południowym szczycie. Można wyróżnić jego trzy koncepcje. Szczyt I (po 1226 – przed 1234) ma cegły ułożone w wątek opus spicatum oraz wystające przed ścianę długie walki. Został on zniszczony w czasie napadu Prusów (1234 lub 1236). Ocalałe części przystosowano do nowego rozplanowania (szczyt II)....
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High performance LaNi1-xCoxO3-δ (x = 0.4 to 0.7) infiltrated oxygen electrodes for reversible solid oxide cells
PublikacjaOxygen electrodes prepared by infiltration of yttria stabilized zirconia backbone with Ce0.8Gd0.2O1.95 barrier layer and LaNi1-xCoxO3-δ (x=0.4 to 0.7) catalyst for application in reversible solid oxide cells have been studied. The effect of temperature and Ni:Co ratio on their phase composition, microstructure and electrochemical properties are discussed. It was shown that oxygen electrodes infiltrated with LaNi0.5Co0.5O3-δ had...
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MnxCo3-xO4 spinel oxides as efficient oxygen evolution reaction catalysts in alkaline media
PublikacjaThe design of efficient electrocatalysts for oxygen evolution reaction (OER) is an essential task in developing sustainable water splitting technology for the production of hydrogen. In this work, manganese cobalt spinel oxides with a general formula of MnxCo3-xO4 (x=0, 0.5, 1, 1.5, 2) were synthesised via a soft chemistry method. Non-equilibrium mixed powder compositions were produced, resulting in high electrocatalytic activity....
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Free-standing TiO2 nanotubes decorated with spherical nickel nanoparticles as a cost-efficient electrocatalyst for oxygen evolution reaction
PublikacjaHere, we report significant activity towards the oxygen evolution reaction (OER) of spherical nickel nanoparticles (NPs) electrodeposited onto free-standing TiO2 nanotubes (TNT) via cyclic voltammetry. It has been shown that simple manipulation of processing parameters, including scan rate and number of cycles, allows for formation of the NPs in various diameters and amounts. The polarization data with respect to transmission electron...
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SrCe0.9In0.1O3-δ-based reversible symmetrical Protonic Ceramic Cell
PublikacjaIn-doped SrCe0.9In0.1O3-δ (SCI) perovskite-type oxide is utilized as the solid electrolyte, as well as a component, together with SrFe0.75Mo0.25O3-δ (SFM) compound, in the composite-type electrodes to construct symmetrical Protonic Ceramic Fuel Cells (PCFC). With good mutual stability of SCI and SFM at high temperatures in water vapor-containing reducing and oxidizing conditions, as well as sufficient ionic conductivity with high...
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Detection of UPEC IH11128 ability to form biofilm in a standard congo red (CR) method of colony staining.
Dane BadawczeA 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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Dorota Horowska, WCH, CH+TCH, st. I, sem. 3, 21/22 z
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Lara Kalenik, WCH, ZTM i GTM, II st, 2 sem, 20/21l
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WCh - TCh (ćw g2), Ch (ćw g2) Matematyka s1: 2021/22 (H.Guze)
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Lara Kalenik, WCH, CH i TCH, I st, 6 sem, 20/21l
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Dorota Horowska, WCH, CH+TCH, st. I, sem. 4, 21/22 l
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D. Horowska, WCH, CH+TCH, st. I, sem. 6, 20/21 l
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WCh - Bt gr.2,3, TCh s.1: ćw. 2023/24 (H.Guze) Matematyka
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M. Hincke-Uszacka , WCH CHEM st. I, sem. 3 23/24 z
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WCh - Bt gr.1, ZT s.1: ćw. 2023/24 (A.Tlałka) Matematyka
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WCh - Bt gr 1 i 2 - Matematyka po I sem. (A.Dąbrowicz-Tlałka)
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M. Hincke-Uszacka , WCH CHEM st. I, sem. 4 23/24 l
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WCh - Bt s.1: ćw. gr.4,5, 2023/24 (E.Kozłowska-Walania) - Matematyka
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