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- Publikacje 551 wyników po odfiltrowaniu
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Wyniki wyszukiwania dla: DISSOCIATION OF H2
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In situ study of a composition of outlet gases from biogas fuelled Solid Oxide Fuel Cell performed by the Fourier Transform Infrared Spectroscopy
PublikacjaThe purpose of this study was to develop a method and software based on the Fourier Transform Infrared Spectroscopy for the in-situ, quantitative analysis of the composition of outlet gases from Solid Oxide Fuel Cell (SOFC). The calibration procedure performed at the beginning of the experiment indicated a polynomial dependence between the concentration of a calibrating gas (CO, CO2, CH4) and the corresponding integrated absorbance in...
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Chapter 9. Sustainable development and heterogeneous photocatalysis
PublikacjaTlenek tytanu(IV) jest efektywnym fotokatalizatorem w procesach usuwania zanieczyszczeń z fazy wodnej i gazowej, fotokonwersji CO2 oraz generowania H2. TiO2 wykazuje wysoką stabilność i reaktywność pod wpływem promieniowania UV, którego energia jest wyższa od szerokości pasma wzbronionego anatazu (3,3 eV). W artykule omówiono mechanizm reakcji w obecności TiO2, obecne oraz potencjalne możliwości zastosowania.
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Nina Rizun dr
OsobyNina Rizun jest adiunktem na Wydziale Zarządzania i Ekonomii Politechniki Gdańskiej. W październiku 1999 r. uzyskała stopień doktora nauk technicznych za specjalizacją Gospodarka przedsiębiorstwa i organizacja produkcji. W latach 1993–2000 pracowała na Wydziale Informatyki Ekonomicznej w Akademji Metalurgicznej, Dnipro, Ukraina. W latach 2000–2016 – na Wydziale Cybernetyki Ekonomicznej i Metod Matematycznych na Uniwersytecie Alfreda...
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Self-healing mechanism of metallopolymers investigated by QM/MM simulations and Raman spectroscopy
PublikacjaThe thermally induced self-healing mechanisms in metallopolymers based on bisterpyridine complexes of iron(II) sulfate and cadmium(II) bromide, respectively, were studied by means of combined quantum mechanical/molecular mechanical (QM/MM) simulations and Raman spectroscopy. Two possible healing schemes, one based on a decomplexation of the cross-linking complexes and a second one relying on the dissociation of ionic clusters,...
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XRD patterns of V2O3 nanostructures
Dane BadawczeThe DataSet contains the XRD patterns of V2O3 nanostructures obtained by the sol-gel with different reaction conditions. The xerogel powder was annealing under a reducing atmosphere (94% Ar, 6% H2) in the temperature range 350-700C. The results show that crystallinity dependent on the annealing temperature.
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SEM micrographs of VO2 and V6O13 nanostructures
Dane BadawczeThe DataSet contains the scanning electron microscopy (SEM) micrographs of VO2 and V6O13 thin films deposited on a silicon substrate. The as-prepared thin films were annealing under a reducing atmosphere (94% Ar, 6% H2) at 600 and 700C for 10h.
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Information Resources Management Association International Conference
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National Conference of the American Association for Artificial Intelligence
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IEEE Conference of the Open Innovations Association FRUCT
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Total Ionization Cross Sections of Selected Amino Acids
Dane BadawczeThe data set contains tabulated values of cross-sections for a single electron-impact ionization of selected amino acids (glycine, alanine, phenylalanine, proline and tryptophan) calculated using binary-encouter-Bethe method. The data have been published in graphical form (figure 1) in the following paperA.M. Sheer, P. Mozejko, G.A. Gallup, P.D. Burrow...
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Międzynarodowa akredytacja instytucjonalna EUA-IEP dla PG
PublikacjaPolitechnika Gdańska 10 września 2018 r. pomyślnie zakończyła procedury międzynarodowej oceny instytucjonalnej przez Europejskie Stowarzyszenie Uniwersytetów (European University Association, EUA) i uzyskała prawo do posługiwania się prestiżowym wyróżnieniem EUA-IEP (European University Association – Institutional Evaluation Programme). EUA oceniało PG pod kątem organizacji i zarządzania uczelnią oraz wewnętrznej kultury jakości....
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The photocurrent quantum efficiency dependence on the applied voltage in organic solar cells
PublikacjaWe demonstrate that our recently reported model (Szmytkowski 2007 J. Phys. D: Appl. Phys. 40 3352) of the photocurrent quantum efficiency in organic semiconductors explains the external quantum efficiency dependence on the electric field in organic solar cells. This effect can be explained by taking into account that the photogeneration of charge carriers occurs via the electron-hole pair dissociation and the space charge effects...
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Helissa Factory
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Diphosphinoboranes as Intramolecular Frustrated Lewis Pairs: P–B–P Bond Systems for the Activation of Dihydrogen, Carbon Dioxide, and Phenyl Isocyanate
PublikacjaHerein, we present the first example of the activation of small molecules by P-B-P bond systems. The reactivity study involves reactions of two selected diphosphinoboranes, (tBu2P)2BPh (1’) and (Cy2P)2BNiPr2 (2), that differ in terms of their structural and electronic properties for the activation of dihydrogen, carbon dioxide, and phenyl isocyanate. Diphosphinoborane 1’ activates H2 under very mild conditions in the absence of...
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Thanos Of Titan
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Enhanced boron doping of thin diamond films grown in deuterium-rich microwave plasma
PublikacjaThe 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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Study of pH and temperature effect on lipophilicity of catechol-containing antioxidants by reversed phase liquid chromatography
PublikacjaLipophilicity of selected antioxidant phytochemicals, including flavonoids, phenolic acids and xanthonoids, was determined by reversed phase high performance liquid chromatography with UV detection (RP-HPLC-UV). The analyses run at different temperature and pH conditions in isocratic mode suggested that lipophilicity as distribution coefficient (logD) between aqueous and organic phase decreases with increasing temperature. For...
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Biuletyn Stowarzyszenia Absolwentów i Przyjaciół Wydziału Prawa Katolickiego Uniwersytetu Lubelskiego
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Interactions between components of SrTi0.98 Nb0.02O3-δ-YSZ and SrTi0.98 Nb0.02O3-δ -CeO2 composites
PublikacjaComposites consisting of SrTiO3-based perovskite and either yttria-stabilized zirconia or ceria were investigated. The mechanical compatibility and possible inter-diffusion between phases were characterized by scanning electron microscopy, X-ray diffraction, and energy-dispersive X-ray spectroscopy. A gradual disappearance of Ce-containing phases with an increase in the temperature of reduction in hydrogen was noticed. Moreover,...
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Dyskryminacja płacowa a postawy wobec pracy.
PublikacjaW pracy analizowana jest zależność pomiędzy dyskryminacją płacową ze względu na płeć a postawami wobec pracy. Weryfikowano następujące hipotezy: H1: Postawy wobec pracy nie zależą od płci, H2: Dyskryminacja płacowa kobiet spowodowana jest częściowo ich niskimi aspiracjami płacowymi. Dane statystyczne zaczerpnięto z Polskiego Generalnego Sondażu Społecznego. Okazało się, że 10% dyskryminacji z 15% należy przypisać niższym aspiracjom...
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Remarkable visible-light induced hydrogen generation with ZnIn2S4 microspheres/CuInS2 quantum dots photocatalytic system
PublikacjaA new and active material in the form of ZnIn2S4 microspheres decorated by CuInS2 quantum dots have been obtained by hydrothermal method for the first time. The optimum amount of CuInS2 quantum dots (1.13 wt.%) introduced into rection medium during ZnIn2S4 microspheres synthesis increased the photocatalytic H2 generation rate by 2.5 times than that of bare ZnIn2S4 photocatalysis under visible light irradiation. This sample exhibited...
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Journal of South India Medicolegal Association
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Cathodically activated Au/TiO2 nanocomposite synthesized by a new facile solvothermal method: An efficient electrocatalyst with Pt-like activity for hydrogen generation
PublikacjaWe report here a facile, template-free and one-step solvothermal approach for the synthesis of high-temperature stable gold/titania nanocomposite (NCs), providing a new, simple, quick and inexpensive wet-chemical route. Our approach is based on the assembly of gold salt and titanium butoxide in dimethyl sulfoxide (DMSO). Also, we present here, for the first time, a cathodically activated Au/TiO2 catalyst with Pt/C activity for...
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The rovibrational energy levels of the diatomic silver anion and neutral silver dimer
Dane BadawczeThe process of a two-channel decay of the diatomic silver anion (Ag2-), namely the spontaneous electron ejection giving Ag2 + e- and the dissociation leading to Ag- + Ag is theoretically studied. The ground state potential energy curves (PECs) of the neutral silver dimer and anionic silver diatomic molecule are calculated using the single reference...
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SEM micrographs of morphology evolution of V2O3 nanostructures
Dane BadawczeThe DataSet contains the scanning electron microscopy (SEM) micrographs of V2O3 nanostructures obtained by the sol-gel with different reaction conditions. The xerogel powder was annealing under a reducing atmosphere (94% Ar, 6% H2) in the temperature range 350-700C. The results show that the morphology dependent on the annealing temperature.
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XRD patterns of the V2O5 coatings after thermal treatment under reducing atmosphere
Dane BadawczeThe DataSet contains the XRD patterns of V2O5 coatings on the silicon substrate after thermal treatment under a reducing atmosphere. Thin films were annealed at 500C, 600C, and 700C for 10 under a reducing atmosphere (94% Ar, 6% H2).
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SEM micrographs of the V2O5 coatings after thermal treatment under reducing atmosphere
Dane BadawczeThe DataSet contains the scanning electron microscopy (SEM) micrographs of V2O5 coatings on the silicon substrate after thermal treatment under a reducing atmosphere. Thin films were annealed at 600C and 700C for 10 under a reducing atmosphere (94% Ar, 6% H2).
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The Role of Electron Transfer in the Fragmentation of Phenyl and Cyclohexyl Boronic Acids
PublikacjaIn this study, novel measurements of negative ion formation in neutral potassium-neutral boronic acid collisions are reported in electron transfer experiments. The fragmentation pattern of phenylboronic acid is comprehensively investigated for a wide range of collision energies, i.e., from 10 to 1000 eV in the laboratory frame, allowing some of the most relevant dissociation channels to be probed. These studies were performed in...
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Mono- and bimetallic nanoparticles decorated KTaO 3 photocatalysts with improved Vis and UV–Vis light activity
PublikacjaNew mono- and bimetallic nanoparticle-decorated perovskite-type KTaO3 photocatalysts were successfully synthesized by hydrothermal reaction followed by photodeposition of MNPs/BNPs. The effect of noble metal type, amount of metal precursor as well as photoreduction method on the physicochemical and photocatalytic properties of MNPs- and BNPs-KTaO3 have been investigated. Photocatalytic activity under Vis light irradiation was estimated...
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JOURNAL OF THE SOUTH AFRICAN VETERINARY ASSOCIATION-TYDSKRIF VAN DIE SUID-AFRIKAANSE VETERINERE VERENIGING
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Paweł Ziemiański dr
OsobyPaweł Ziemiański - adiunkt na Wydziale Zarządzania i Ekonomii Politechniki Gdańskiej. Jego zainteresowania badawcze dotyczą przedsiębiorczości, zespołów przedsiębiorczych oraz negatywnych aspektów (ciemnej strony) przedsiębiorczości. Prowadził również badania dotyczące psychologicznych aspektów sprawowania władzy w organizacjach. W działalności dydaktycznej interesuje go praca ze studium przypadku. Brał udział w szkoleniu z nauczania...
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Electron impact fragmentation of pyrrole molecules studied by fluorescence emission spectroscopy
PublikacjaThe fluorescence emission spectroscopy using electron impact excitation technique was employed to study fragmentation processes of the gas phase pyrrole molecules. The following excited fragmentation species were observed by detection of their fluorescence decay: the atomic hydrogen H(n), n = 4-7 and the diatomic CH(A2Δ), CN(B2Σ+), NH(A3Π) and C2(d3Πg) fragments. These atomic and molecular products differ from those previously...
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Postawy osób starszych wobec tradycyjnych i innowacyjnych kanałów dystrybucji usług finansowych
PublikacjaRosnący udział osób starszych w strukturze populacji stawia nowe wyzwania przed przedsiębiorstwami oferującymi produkty do nich skierowane. Przykładem takich produktów są usługi finansowe. Przedmiotem niniejszego tekstu są usługi ubezpieczeniowe i bankowe oferowane osobom starszym z wykorzystaniem tradycyjnych i nowoczesnych kanałów dystrybucji. Na podstawie przeglądu literatury sformułowano dwie hipotezy badawcze: H1: Cechy społeczno-demograficzne...
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Influence of reduction process on the structural and mechanical properties of (Pb,Bi)-(Si,Ge)-O oxide glasses
PublikacjaThe effect of the reduction process in H2 at 380 °C on the microstructure and elemental composition of a glass Bi0.4Pb0.2Si0.4Ox has been investigated. It has been shown that after reduction a clearly separated top layer with a thickness of approx. 50 µm was formed on the surface of the sample. This layer is depleted of oxygen and has higher electrical conductivity than the interior of the glass. It has also been found that some...
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Wpływ procesu redukcji na właściwości strukturalne i mechaniczne szkieł tlenkowych z grupy (Pb,Bi)-(Si,Ge)-O = Influence of reduction process on the structural and mechanical properties of (Pb,Bi)-(Si,Ge)-O oxide glasses
PublikacjaThe effect of the reduction process in H2 at 380 °C on the microstructure and elemental composition of a glass Bi0.4Pb0.2Si0.4Ox has been investigated. It has been shown that after reduction a clearly separated top layer with a thickness of approx. 50 µm was formed on the surface of the sample. This layer is depleted of oxygen and has higher electrical conductivity than the interior of the glass. It has also been found that some...
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Hydrogen charging of nitrided steel in acid solution
PublikacjaKonstrukcyjną stal, azotowaną w wyładowaniu jarzeniowym w mieszaninie gazów o różnej zawartości N2, H2 i Ar, poddawano katodowemu nawodorowaniu w kwaśnym roztworze, imitującym przepracowany olej maszynowy. W pomiarach szybkości przenikania wodoru i ekstrakcji próżniowej określano wpływ azotowanych warstw, odpowiednio, na transport wodoru i na jego nieodwracalne pułapkowanie. W obecności niezdefektowanej warstwy kompaktowych azotków...
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Open and Distance Learning Association of Australia Bienniel Forum
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Australasian Urban and Regional Information Systems Association Conference
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Accounting and Finance Association of Australia and New Zealand Conference
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Global Information Technology Management Association World Conference
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43rd IBIMA International Business Information Management Association
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Conference of the Association of Asian-Pacific Operational Research Societies
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Rare earth ions doped K 2 Ta 2 O 6 photocatalysts with enhanced UV–vis light activity
PublikacjaNew rare earth-doped K2Ta2O6 photocatalysts were successfully synthesized by hydrothermal method. The effect of dopant type (Y,Yb,Ho,Pr,Er) and amount of rare earth precursor (2,4,8 and 10 mol%) on the physicochemical and photocatalytic properties of RE-K2Ta2O6 have been investigated. All as-prepared materials were characterized by UV–vis diffuse reflectance spectroscopy, Brunauer-Emmett-Teller specific surface area measurement,...
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Leszek Ziemczonek dr
OsobyUniversity education 1973-1978 – Nicolaus Copernicus University in Toruń, University of Gdańsk in Gdańsk, Mathematical Physics, M. Sc. 1979 – Diploma of Postgraduate Studies, Pedagogics 1989 – Institute of Physics, Polish Academy of Sciences in Warsaw, Theoretical Physics, Ph. D. 2010-2012 – Diploma of Postgraduate Studies, Mathematics Training: · 09.1983 – Trieste (Italy) – International Centre for Theoretical Physics...
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Międzynarodowa akredytacja instytucjonalna EUA-IEP – rok od akredytacji
PublikacjaW 2018 roku odbyła się instytucjonalna ocena Politechniki Gdańskiej pod kątem organizacji i zarządzania uczelnią przez Europejskie Stowarzyszenie Uniwersytetów (European University Association, EUA). W jej wyniku we wrześniu 2018 r. uczelnia otrzymała prawo posługiwania się przez okres 5 lat znakiem EUA-IEP (European University Association – Institutional Evaluation Programme). Po roku od uzyskania akredytacji EUA-IEP Uczelnia...
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Discovering patterns of Web Page Visits from Associaton Rules Viewpoint
PublikacjaThe popularity of the Internet results from the almost unlimited resources of information stored in it. At the same time, Internet portals have become a widespread source of information and note very large number of visits. The list of web pages opened by users is stored in web servers' log files. Extraction of knowledge on the navigation paths of users has become carefully analyzed problem. Currently, there are a number of algorithms...
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Innowacje we współczesnej bankowości - ich ocena
Publikacjaw opracowaniu przedstawiono innowacje występujące we współczesnej bankowości. Autorzy dokonali klasyfikacji innowacji, które zostały poparte przykładami. Przeanalizowano badania przeprowadzone przez European Financial Management& Marketing Association w zakresie innowacyjności banków detalicznych.
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Results after grinding C45 steel
Dane BadawczeThe database contains results from nanoindenter, scanning microscope and also X-ray diffractometer. To determine the residual stresses and the size of the crystallites in the ferrite grains in the grinded surface layer, the Williamson Hall analysis of the X-ray diffraction patterns was performed. XRD diffraction patterns were also used to perform a...
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Cooperation between NGOs from Tricity and public administration entities
Dane BadawczeResearch is an element of the Project “Civil Society Development for Participatory Democracy in Shida Kartli Region implemented by Instytut Badań nad Polityką Europejską (Research Institute for European Policy) in cooperation with Information and Socio-Economic Problems Research Center (Georgia), Agria Universitas Association (Hungary) and Civipolis,...
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Nitrogen-doped diamond thin films: potential application in Fabry-Pérot interferometer
PublikacjaIn this paper we present results of preliminary research of using nitrogen-doped diamond (NDD) films as reflective layer in Fabry-Pérot interferometer. NDD films were deposited on Si substrates by Microwave Plasma Enhanced Chemical Vapor Deposition (MPECVD) with the use of CH4, H2 and N2 gas mixtures. During deposition process methane flow rate varied while nitrogen flow was constant. We performed series of measurements which showed...