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Search results for: LUMINESCENCE DYSPROSIUM(III) IONS SOL-GEL PROCESSES SILVER NANOPARTICLES CALCIUM TUNGSTATE
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An excess electron bound to urea. III. The urea dimer as an electron trap
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Nanocrystalline hydroxyapatite enriched in selenite and manganese ions: physicochemical and antibacterial properties
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Binding energies of Eu2+ and Eu3+ ions in β-Ca2SiO4 doped with europium
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Choline Supplementation Sensitizes Legionella dumoffii to Galleria mellonella Apolipophorin III
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Erbium (III) molybdate as a new nanofiller for fabrication of antifouling polyethersulfone membranes
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Note on the Harmonic Approximation in the Treatment of Entanglement: N Cold Trapped Ions
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Application of Coordination Compounds with Transition Metal Ions in the Chemical Industry—A Review
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Structural properties and adsorption of uranyl ions on the nanocomposite hydroxyapatite/white clay
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Features of ammonium-ions sorption by natural zeolites under dynamic conditions.
PublicationW pracy przedstawiono: charakterystykę naturalnych zeolitów, obszar ich praktycznego wykorzystania w zakresie adsorpcyjnego usuwania niektórych zanieczyszczeń z wód oraz wyniki badań procesu adsorpcji jonów amoniowych z wodnych roztworów modelowych (w układzie dynamicznym) na wybranych zeolitach naturalnych.
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Interaction of selected divalent metal ions with human ataxin-3 Q36
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Miejsce programu GAMBIT w III planie BRD Unii Europejskiej
PublicationOtwarcie Seminarium GAMBIT 2006, poświęcone wnioskom z dotychczasowych działań oraz planom na przyszłość, zawartym w najnowszym Krajowym Programie GAMBIT 2005. Prace nad nim rozpoczęto w sierpniu 2004, czyli tuż po wejściu Polski do Unii Europejskiej. W kwietniu 2005 Rada Ministrów przyjęła GAMBIT 2005 jako program dla Polski na lata 2005-2013, skonstruowany zgodnie z metodyką opracowaną dla tych krajów UE-25, których poziom zagrożenia...
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Nonlinear impedance in oxide glasses containing single and mixed alkali ions
PublicationThe aim of the present was to find more clues on the nonlinearities in impedance of oxide glasses. The first family of researched glasses has a composition of FeO-P2O5-Na2O. Oxide glasses containing iron and alkali are well known for a very low alkali ion mobility and may be considered purely polaron conducting. These glasses show no detectable nonlinearities in the impedance spectra. The second was a family of ionic conducting...
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Determination of Surfactants in Environmental Samples. Part III. Non-Ionic Compounds
PublicationNon-ionic surface active agents are a diverse group of chemicals which have an uncharged polar head and a non-polar tail. They have different properties due to amphiphilic structure of their molecules. Commercial available non-ionic surfactants consist of the broadest spectrum of compounds in comparison with other types of such agents. Typically, non-ionic compounds found applications in households and industry during formulation...
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Quality Assurance of Educational Processes as the Foundation of the Quality Management System in Gdansk University of Technology
PublicationThe paper presents a model of quality management system (QMS) developed by the author in Gdansk University of Technology (GUT). The core of the model is internal quality assurance system of educational processes based on the ENQA guidelines. Next described in the paper steps of GUT QMS development are the implementation of one of the normative QMS models (e.g. ISO 9001, ISO/IEC 17025) in selected organizational units of GUT and...
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A multi‐industry and cross‐country comparison of technology contribution to formal and informal knowledge sharing processes for innovativeness
PublicationThe study explores the impact of organizational information technology (IT) competency on knowledge sharing, both explicit and tacit, in the context of innovativeness of products and processes. Knowledge sharing is then assessed in terms of tacit-to-explicit conversion and the impact of both types of knowledge on organizational innovation. Both process (internal) and product/service (external) innovation are included. As an extension,...
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Photocatalytic Decomposition of Air Pollutants using Electrodeposited Photocatalysts on Stainless Steel
PublicationThe aim of research was to develop an immobilization method for photocatalysts, which is an alternative to the sol-gel or dip coating methods and can be simply scaled up for technical applications. The investigated photocatalyst was TiO2, which was electrochemically deposited onto a cathode made of stainless steel. This deposited film was photocatalytically active. In order to enhance the photoactivity of the TiO2 film, commercially...
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ANALYSIS AND OPTIMIZATION OF ELECTRIC VEHICLE CHARGING PROCESSES IN TRANSACTIVE ENERGY SYSTEMS
PublicationThe implementation of smart charging of electric vehicles allows operators of local power networks and electricity suppliers to implement new business models for the interaction of electric vehicles with the network. In addition to the optimal selection of Microgrid capacities when charging electric vehicles, it is also important to use different charging methods. To satisfy the interests of all participants of local systems from...
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Visible light activity of pulsed layer deposited BiVO4/MnO2 films decorated with gold nanoparticles: The evidence for hydroxyl radicals formation
PublicationThin films containing BiVO4 and MnO2 deposited on FTO and modified by Au nanoparticles were studied towards their photoelectrochemical and photocatalytical activities in an aqueous electrolyte. Electrodes were prepared by the pulsed laser deposition (PLD) method. The surfactant-free ablation process was used for preparation of the gold nanoparticles (GNP) water suspension. Obtained layers of varied thicknesses (27–115 nm) were...
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Ontology-Driven Rule-Based Model for an Extension of Information Technology Infrastructure Library Processes
PublicationThe aim of this study is to present the stages for building a development model to create information technology (IT) systems for IT service providers. In order to ensure the consistency of the model, a novel solution is proposed where the stages of the model's construction are controlled using ontologies dedicated to the ITIL standard. In this article, a description of models used to assess the provider organization, with particular...
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Synthesis of CoFe2O4 Nanoparticles: The Effect of Ionic Strength, Concentration, and Precursor Type on Morphology and Magnetic Properties
PublicationThe present study highlights the effect of metal precursor types (SO4 2¯, Cl¯, and NO3¯), their concentration, and the influence of ionic strength of reaction environment on the morphology, surface, and magnetic properties of CoFe2O4 particles. The magnetic nanoparticles were obtained by chemical coprecipitation in alkaline medium at increasing metal concentration in the range of 0.0425 mol·dm-3 to 0.17 mol·dm-3 and calcination...
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Solvent Impact on the Diversity of Products in the Reaction of Lithium Diphenylphosphide and a Ti(III) Complex Supported by a tBu2P–P(SiMe3) Ligand
PublicationWe present two important trends in the reactivity ofthe titanium complex [MeNacNacTi(Cl){η2-P(SiMe3)-PtBu2}](MeNacNac− = [Ar]NC(Me)CHC(Me)N[Ar]; Ar = 2,6-iPr2Ph)with nucleophilic reagents RLi (R = Ph2P,tBuO, (Me3Si)2N, andtBu2N) depending on the reaction medium. Reaction in nonpolarsolvent (toluene) leads to three main products: via an autoredoxprocess and nucleophilic substitution at the Ti-atom to afford theTi(IV) complex [MeNacNacTi(R){η2-P-PtBu2}]...
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System monitorowania obiektów inżynierskich w trakcie ich eksploatacji na przykładzie Mostu III Tysiąclecia im. Jana Pawła II w Gdańsku.
PublicationMost III Tysiąclecia im. Jana Pawła II w Gdańsku oddano do użytku w listopadzie 2004 roku. Jest on jednym z trzech podwieszonych obiektów mostowych wybudowanych w ostatnich latach w Polsce. Praca i zachowanie się konstrukcji mostu jest stale monitorowane przez autorski, opracowany w Katedrze Mostów PG system pomiarowy. Zainstalowana aparatura pomiarowa śledzi i rejestruje zachowanie się konstrukcji mostu pod wpływem obciążenia...
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Modifications to the anaerobic digestion model no. 1 (ADM1) for enhanced understanding and application of the anaerobic treatment processes – A comprehensive review
PublicationAnaerobic digestion (AD) is a promising method for the recovery of resources and energy from organic wastes. Correspondingly, AD modelling has also been developed in recent years. The International Water Association (IWA) Anaerobic Digestion Model No. 1 (ADM1) is currently the most commonly used structured AD model. However, as substrates become more complex and our understanding of the AD mechanism grows, both systematic and specific...
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A SPC strategy for decision making in manufacturing processes
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Water demineralisation by NF/MD integrated processes
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Work safety in production processes located in Poland
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Modeling and Simulation Method of Precision Grinding Processes
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Expert systems in quality control of manufacturing processes
PublicationThe paper deals with quality control in conditions of computer integrated manufacturing (CIM). It shows that quality of material stream items have to be analyzed on every stage of manufacturing process. Collecting and analyzing quantity of data with usage of expert systems make it possible to create a system for coordination of cell's work. The system contains error recovery algorithm and adaptive control subsystem based on fuzzy...
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Dissolved oxygen control for activated sludge processes
PublicationRegulatory do nadążania za trajektorią referencyjną stężenia tlenu w komorze reaktora biologicznego są proponowane i badane. W artykule badany jest nieliniowy regulator predykcyjny oraz regulator adaptacyjny z modelem referencyjnym. Uwzględniono zarówno usuwanie ze ścieków pożywki oraz fosforu za pomocą technologii osadu czynnego. Podejście do projektowania regulatora wykorzystuje strukturę dynamiki rozpuszczonego tlenu i jej dwie...
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Information significance in engineering design processes in shipyards
PublicationW artykule zwrócono uwagę na aspekt zarządzania procesem budowy statku, zarządzania informacją w procesie projektowania oraz znaczeniu systemów informacyjnych w transmisji informacji pomiędzy biurem projektowym a organizacjami współpracującymi. Dzięki jednolitej informacji projektowej we wszystkich fazach projektowania uzyskujemy ciągłość procesu projektowego, eliminację niepotrzebnych kosztów związanych z poprawą błędów oraz lepszą...
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Vibration surveillance of dynamic systems and production processes
PublicationPraca dotyczy poszukiwania sposobów minimalizacji poziomu drgań podczas pracy maszyn i urządzeń wykonujących określone procesy robocze. Do modelowania dyskretnego wykorzystano metodę elementów skończonych. Rozważano dynamikę niestacjonarnego dyskretnego układu sterowanego, którego zachowanie opisano we współrzędnych uogólnionych, jak również - układu hybrydowego. Ten ostatni uzyskano dzięki wyodrębnieniu z całości podukładu stacjonarnego,...
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Use of Brassica Plants in the Phytoremediation and Biofumigation Processes
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Energy optimisation in resilient self-stabilizing processes
PublicationW pracy rozważa się rozproszony model obliczeń, w którym struktura systemu jest reprezentowana przez graf bezpośrednich połączeń komunikacyjnych. W tym modelu podajemy nowy samostabilizujący algorytm kolorowania grafów oparty na konstrukcji drzewa spinającego. Zgodnie z naszą wiedzą jest to pierwszy algorytm z gwarantowaną wielomianową liczbą ruchów, który dokładnie koloruje grafy dwudzielne.
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Knowledge management embedded in software engineering processes
PublicationW pracy omówiono systemy i narzędzia wspomagające wykrywanie wiedzy ukrytej w procesach związanych z wytwarzaniem skomplikowanych systemów oprogramowania
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Knowledge management embedded in software engineering processes
PublicationW pracy przedstawiono model systemu pozyskiwania wiedzy zawartej w procesach inżynierii oprogramowania.
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Application of ionic liquids for gas separation processes
PublicationNowym kierunkiem w procesach separacji dwutlenku węgla stało się w ostatnich latach zastosowanie cieczy jonowych. Niemierzalna prężność par i możliwość dostosowania ich właściwości czyni je idealnymi mediami zastępującymi lotne, korozyjne i toksyczne rozpuszczalniki. Ponadto ciecze jonowe wykazują niską współabsorpcję innych gazów. Dlatego też, możliwe jest selektywne odseparowanie dwutlenku węgla z mieszanin gazowych
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Review of ionic liquids applications in chemical processes
PublicationCiecze jonowe stały się obiektem zainteresowania naukowców. Składają się one z dużego organicznego kationu i małego anionu. Modyfikacje kationu i anionu pozwalają na dostosowanie ich właściwości do aktualnych potrzeb. Rozpuszczają one szerokie spektrum związków organicznych i nieorganicznych związków. Mogą zatem z powodzeniem zastąpić dotychczas stosowane tradycyjne rozpuszczalniki. Znajdują zastosowanie jako medium reakcyjne,...
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Use of Brassica plants in the phytoremediation and biofumigation processes
PublicationIn recent decades, serious contamination of soils by heavy metals has been reported. It is therefore a matter of urgency to develop a new and efficient technology for removing contaminants from soil. Another aspect to this problem is that environmental pollution decreases the biological quality of soil, which is why pesticides and fertilizers are being used in ever-larger quantities. The environmentally friendly solutions to these...
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Trends and problems of contemporary urbanization processes in Poland
PublicationArtkuł obejmuje przegląd współczesnych problemów planowania przestrzennego i rozwoju urbanistycznego Polski w okresie od transformacji społeczno - ekonomicznej początku lat 1990-tych. Zawarto w nim zarówno omówienie sytuacji polskich miast po transformacji, współczesne oraz rozwijające się trendy urbanizacyjne.
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Contemporary Development Processes of Cities and Urban Areas
PublicationThe article deals with contemporary transformation of urban structures with special focus on Polish cities. The special attention is given to issues associated with re-urbanization and suburbanization of these within the framwork of principles of sustainable urban development
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Participation - engaging the citizens in city renewal processes
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Improvement of radiotracers experiments in mass transfer processes
PublicationThe greatest part of industrial mass transfer is based on continuous transportation of different substances throughout especially constructed installations. In that kind of practice, a flow of such mass in each part determines the process unit and can be described by the residence time distribution (RTD) of the substance inside this unit. This parameter may be evaluated by the properly arranged tracer experiment. It is worthwhile...
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International Conference on Diagnostics of Processes and Systems 2022
PublicationWydarzenie stanowiło 15 ogniwo cyklu organizowanego od 1996 roku, naprzemiennie przez Politechnikę Warszawską, Uniwersytet Zielonogórski oraz Politechnikę Gdańską. Tegoroczna edycja konferencji została objęta patronatem JM Rektora Politechniki Gdańskiej, prof. Krzysztofa Wilde, Komitetu Automatyki i Robotyki Polskiej Akademii Nauk, Towarzystwa Konsultantów Polskich (FSNT-NOT) oraz Polskiego Stowarzyszenia Pomiarów Automatyki i...
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Investigation of the Combustion Processes in the Gas Turbine Module of an FPSO Operating on Associated Gas Conversion Products
PublicationIn this paper, we consider the issue of thermo-chemical heat recovery of waste heat from gas turbine engines for the steam conversion of associated gas for offshore vessels. Current trends in the development of offshore infrastructure are identified, and the composition of power plants for mobile offshore drilling units and FPSO vessels is analyzed. We present the results of a comparison of power-to-volume ratio, power-to-weight...
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Cathepsin G deficiency reduces periaortic calcium chloride injury-induced abdominal aortic aneurysms in mice
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Effect of fortification with calcium from eggshells on bioavailability, quality, and rheological characteristics of traditional Polish bread spread
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Two kinds of oxygen vacancies in lithium titaniate doped with copper as detected by EPR
PublicationLithium titanate (Li1+xTi2-xO4) doped with Cu2+ ions was synthesized by sol-gel processing method. The structure and morphology are characterized by X-ray Diffraction (XRD), X-ray Photoemission Spectroscopy (XPS), Scanning Electron Microscopy (SEM) and Electron Paramagnetic Resonance (EPR). Spin Hamiltonian parameters describing Zeeman and hyperfine interaction for 63Cu2+ ions were obtained from EPR spectra simulations. The spectra...
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Cathodic activation of synthesized highly defective monoclinic hydroxyl‐functionalized ZrO2 nanoparticles for efficient electrochemical production of hydrogen in alkaline media
PublicationThe high electrochemical stability of Zirconia (ZrO2) at high potentials strongly suggested it as an alternative to carbon supports, which experience reduced efficiency due to some corrosion problems particularly during prolonged electrocatalysis activity. However, the use of ZrO2 was limited by its low electrical conductivity and surface area. In this work, we developed a methodology for synthesizing monoclinic ZrO2 NPs with increased...
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Ultrafast degradation of brilliant cresyl blue under hydrodynamic cavitation based advanced oxidation processes (AOPs)
PublicationThe study highlights effectiveness of hydrodynamic cavitation (HC) in the degradation of effluents polluted by Brilliant Cresyl Blue (BCB) dye. Optimal process parameters were cavitation number 0.27, inlet pressure 1.70 bar, temperature 20 °C and pH 7. The efficiency of HC was investigated in combination with other advanced oxidation processes, including the addition of external oxidants (hydrogen peroxide, ozone, and sodium persulfate)...
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Synergic Effect of Naphthylated Carbon Nanotubes and Gold Nanoparticles on Catalytic Performance of Hybrid Films Containing Bilirubin Oxidase for the Dioxygen Reduction
PublicationTo improve the direct electron transfer from a multicopper oxidase MvBOd to the glassy carbon electrode surface the naphthylated multiwall carbon nanotubes (Napht-MWCNTs) are ombined with gold nanoparticles (AuNPs) to form a conductive network at the electrode and to increase its working surface. Such approach allowed to eliminate the necessity of employing mediators to reach elevated current values. The enzyme stability was improved...