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Search results for: POLE WIROWE
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Nonlinear control of induction motor in field weakning region with consideration of stator flux
PublicationMetody nieliniowgo sterowania mogą poprawić właściwości silnika indukcyjnego w stanach przejściowych wektora strumienia. Badano sterowanie oparte na modelu multiskalarnym silnika indukcyjnego w zakresie osłabiania pola. Dwie nowe zmienne wejściowe pojawiające się w modelu multiskalarnym są równe czynnej i biernej mocy silnika. Pokazano, że te wielkości mogą byc kompensowane, jeżeli rozważane są jako mierzone zakłócenia. Maksymalny...
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Acoustic streaming caused by modulated sound and wave packets.
PublicationRozpatruje się powstanie pola wirowego na skutek nieliniowej propagacji fali akustycznej w środowiskach z lepkością. Teoria odwołuje się do fal akustycznych nieokresowych, w odróżnieniuod teorii klasycznej. Obliczenia numeryczne na podstawie nowych wzorów są porównywane z wynikami teorii klasycznej.
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Demagnetyzacja składowej podłużnej otwartego układu ferromagnetycznego.
PublicationObiekt ferromagnetyczny znajdujący się w ziemskim polu magnetycznym zaburza w swoim otoczeniu równomierność pola. Zaburzenie to związane jest z namagnesowaniem stałym i indukowanym obiektu ferromagnetycznego. W pracy przedstawiono wyniki badań symulacyjnych dotyczące możliwości demagnetyzacji obiektu w jego osi podłużnej pokrywającej się z największym wymiarem obiektu. Przedstawiono opis niezbędnych założeń dotyczących problemu,...
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Kurs przygotowawczy do matury
e-Learning CoursesProgram kursu z fizyki: Wielkości fizyczne, wektory i skalary, pomiary wielkości fizycznych, metodologia sporządzania tabel i wykresów, niepewności pomiarowe, planowanie prostych eksperymentów. Podstawowe pojęcia kinematyki punktu materialnego, układ odniesienia, wektor wodzący, tor ruchu, równanie ruchu, ruch prostoliniowy, ruch krzywoliniowy, droga, przemieszczenie, prędkość średnia, prędkość chwilowa, szybkość, przyspieszenie...
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Termoplastyczne elastomery poli(estro-uretanowe) otrzymywane z udziałem bio-glikolu poddane dwukrotnemu przetwórstwu
PublicationRecykling materiałów polimerowych w istotny sposób wpływa na zmniejszenie ilości odpadów z tworzyw sztucznych składowanych na wysypiskach śmieci. Jedną z metod recyklingu jest recykling mechaniczny, stosowany szczególnie w przypadku materiałów o właściwościach termoplastycznych. W pracy zbadano wpływ dwukrotnego przetwórstwa termoplastycznych elastomerów poli(estro-uretanowych), TPU, otrzymywanych z udziałem bio-glikolu na strukturę...
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The Distribution of Glucosinolates in Different Phenotypes of Lepidium peruvianum and Their Role as Acetyl- and Butyrylcholinesterase Inhibitors—In Silico and In Vitro Studies
PublicationThe aim of the study was to present the fingerprint of different Lepidium peruvianum tu- ber extracts showing glucosinolates-containing substances possibly playing an important role in preventinting dementia and other memory disorders. Different phenotypes of Lepidium peruvianum (Brassicaceae) tubers were analysed for their glucosinolate profile using a liquid chromatograph coupled with mass spectrometer (HPLC-ESI-QTOF-MS/MS platform)....
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THE MELT FLOWABILITY AND TENSILE PERFORMANCE OF POLY (-CAPROLACTONE)/BREWERS’ SPENT GRAIN COMPOSITES AS A FUNCTION OF FILLER MODIFICATION
PublicationNowadays, it is essential to reduce the environmental impact of products and technologies. Such an approach should be highlighted in all research activities. In the case of polymer composites, it can be realized by introducing by-products or waste materials as fillers. An auspicious example of such material is the brewers’ spent grain, the major byproduct of the beer production. Its chemical composition, relatively similar to conventional...
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Fabrication of toughened plastic using styrene butadiene rubber-poly (methyl methacrylate) interpenetrating polymer networks
PublicationA standard set of interpenetrating polymeric networks (IPNs) has been contrived using an elastomerstyrene butadiene rubber and a thermoplastic poly (methyl methacrylate) through sequential polymerization protocol. This low-cost material can be hopefully engaged as a toughened plastic with cocontinuous morphology. Different morphological protocols including Raman imaging are effectively utilized to envisage the effect of blend ratio...
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Bortezomib induces methylation changes in neuroblastoma cells that appear to play a significant role in resistance development to this compound
PublicationThe anticancer activity of bortezomib (BTZ) has been increasingly studied in a number of indications and promising results for the use of this treatment have been shown in neuroblastoma. As BTZ treatment is usually administered in cycles, the development of resistance and side effects in patients undergoing therapy with BTZ remains a major challenge for the clinical usage of this compound. Common resistance development also means...
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Reshaping financial systems: The role of ICT in the diffusion of financial innovations – Recent evidence from European countries
PublicationExchange-traded funds (ETFs) are among the fastest-growing types of innovative financial products. The emergence and spread of these instruments have been facilitated by the digital revolution. Information and communication technology (ICT) is profoundly reshaping the global economic landscape, laying solid foundations for unrestricted and unbounded flows of information and knowledge, eliminating information asymmetries, and furthering...
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Role of methylation in electron scattering on X(CH3)4 (X= C, Si, Ge) molecules (2)
PublicationTo investigate how replacement of H atom with methyl group (CH3) – in tetrahedral compounds of carbon, silicon and germanium – affects electron scattering process, total cross sections (TCS) for electron scattering from C(CH3)4, Si(CH3)4 and Ge(CH3)4 molecules have been compared with data for CH4, SiH4 and GeH4 molecules. All examined data have been obtained with the same experimental setup. The shape of all discussed TCS energy...
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The Mediational Role of Relational Psychological Contract in Belief in a Zero-Sum Game and Work Input Attitude Dependency
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Immunohistochemical detection of galectin-1 in renal biopsy specimens of children and its possible role in proteinuric glomerulopathies
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Self-advocacy of a person with a disability in the dual role of paid worker and volunteer: Theoretical considerations and a case study
PublicationThe changing models of disability influence the way people with disabilities participate in social life, and how they can transform their life and environment. Such participation may take the form of work and volunteering, as well as participation in self-advocacy movements. This paper aims to explore how a woman with hearing impairment perceives her dual role as a regular worker and voluntary self-advocate within one organization...
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Role of miR-15b/16–2 cluster network in endometrial cancer: An in silico pathway and prognostic analysis
PublicationEndometrial cancer (EC) is the second most common cancer in women. A large number of human cancers exhibit dysregulation of microRNA expression including EC. MiR-15b/16–2 is one of the best-known miRNA clusters that is expressed in many types of cancer tissues. Herein, we analyzed the expression of individual miR-15b/16–2 cluster members, its paralogues, and their target network analysis, as well as their prognostic significance...
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Indirect Relationship between Alcoholics Anonymous Spirituality and Their Hopelessness: The Role of Meaning in Life, Hope, and Abstinence Duration
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Role of miR-15b/16–2 cluster network in endometrial cancer: An in silico pathway and prognostic analysis
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WHY LOYAL EMPLOYEES DO NOT MANIFEST INTENTION TO QUIT THE ORGANIZATION. THE ROLE OF SUPERVISOR SUPPORT AND EMPLOYEES SPIRITUALITY
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Physical effects of radiation processes in poly(aliphatic/aromatic-ester)s modified with e-beam radiation
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Nanostructured polyethersulfone membranes for dye and protein separation: Exploring antifouling role of holmium (III) molybdate nanosheets
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Sulfonated poly(benzoyl paraphenylene) as a membrane for PEMFC: Ex situ and in situ experiments of thermal and chemical stability
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Zinc and the Innovative Zinc-α2-Glycoprotein Adipokine Play an Important Role in Lipid Metabolism: A Critical Review
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The Finite Pore Volume GAB Adsorption Isotherm Model as a Simple Tool to Estimate a Diameter of Cylindrical Nanopores
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Polylactide-Based Films with the Addition of Poly(ethylene glycol) and Extract of Propolis—Physico-Chemical and Storage Properties
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Effect of hybrid TiO2 nanoparticles with controlled morphology on rheological properties of poly(styrene-co-acrylonitrile) nanocomposites
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Role of inner-city brownfields in urban development of european cities - example of Gdańsk Music and Congress Centre
PublicationPołożone w bliskim sąsiedztwie śródmieść tereny poprzemysłowe odgrywają w miastach europejskich ważną rolę w przekształceniach struktur miejskich. Kształtowane na posiadających bardzo silną tożsamość terenach wielofunkcyjne, przestrzenie publiczne przyczyniają się do zatrzymania w centrum miast jego mieszkańców i przeciwdziałają ich ucieczce na obrzeża. Wyżej wspomniane kulturowe i historyczne dziedzictwo, jak i genius loci obecny...
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Impedance spectroscopy studies on hybrid materials consisting of poly(3,4-ethylenedioxythiophene) and iron, cobalt and nickel hexacyanoferrate
PublicationBadania warstw polimeru pEDOT modyfikowanego heksacyjanożelazianami żelaza, kobaltu i niklu przeprowadzono za pomocą spektroskopii impedancyjnej (SI). Wykazano, że materiały hybrydowe charakteryzują się dobrą stabilnością. Warstwy testowano w zakresie temperatur od 283 do 313K. w kontakcie z wodnym roztworem KCl. Wysokie współczynniki dyfuzji wskazują na możliwości wykorzystania układów jako przewodników jonowych.
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Synthesis, chemical structure and properties of cross-linked poly(esterourethanes) based on unsaturated oligo(alkyleneester)diols
PublicationW pracy przedstawiono wyniki badań struktury chemicznej i właściwości nienasyconych oligo(alkilenoestro)dioli oraz syntetyzowanych z ich udziałem poli(estrouretanów). Strukturę oligomeroli oraz poliuretanów ustalono w oparciu o wyniki badań FTIR, NMR, analizę elementarną. Właściwości poli(estrouretanów) określono przez pomiary stabilności termicznej, analizę termomechaniczną oraz obliczenia ciężaru cząsteczkowego łańcuchów polimerowych...
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The Role of Matrix Gla Protein (MGP) Expression in Paclitaxel and Topotecan Resistant Ovarian Cancer Cell Lines
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A survey of medical researchers indicates poor awareness of research data management processes and a role for data librarians
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New insights into the role of lattice oxygen in the catalytic carbonization of polypropylene into high value-added carbon nanomaterials
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The molecular function of kallikrein‐related peptidase 14 demonstrates a key modulatory role in advanced prostate cancer
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Formation of nitrogen functionalities in biochar materials and their role in the mitigation of hazardous emerging organic pollutants from wastewater
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Waste-derived stable carbon electrodes for capacitive deionization using poly (vinyl alcohol)-glutaraldehyde as binder
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Chicken feather-derived carbon electrodes for capacitive deionization using poly(vinyl alcohol)-glutaraldehyde as the binder
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Toxicity Assessment by Microtox® in Sediments, Pore Waters and Sediment Saline Elutriates in the Gulf of Gdansk (Baltic Sea)
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Szacowanie zawartości benzo(a)pirenu w pyle zawieszonym pm10 przy pomocy wielowymiarowej regresji liniowej
PublicationW pracy przedstawiono próbę oszacowania przy pomocy wielowymiarowej regresji liniowej modelu empirycznego opisującego czynniki wpływające na zawartość B(a)P w pyle zawieszonym PM10 w jednej z dzielnic aglomeracji trójmiejskiej, gdzie głównym źródłem występowania B(a)P była niska emisja, spowodowana spalaniem paliw kopalnianych. Analizie poddano wzajemne zależności: stężenia pyłu PM10 w powietrzu, temperaturę powietrza, prędkość...
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Role of method of implementing multi-factorial falls prevention in nursing homes for elderly persons. The EUNESE project
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Investigating the Effect of Aluminum Diethylphosphinate on Thermal Stability, Flame Retardancy, and Mechanical Properties of Poly(butylene succinate)
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Renal Regulation of Potassium Homeostasis in Calves in the First Week of Life Including the Role of Atrial Natriuretic Peptide
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DOPO-Functionalized Molybdenum Disulfide and its Impact on the Thermal Properties of Polyethylene and Poly(Lactic Acid) Composites
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China’s BRI in Central and Eastern European Countries: The Role of ‘17+1’ Framework for Regional Economic Cooperation
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Experimental investigation on the effect of dry and multi-jet cryogenic cooling on the machinability and hole accuracy of CFRP composites
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Influence of geometry of iron poles on the cogging torque of a field control axial flux permanent magnet machine
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The role of aluminium in metal–organic frameworks derived carbon doped with cobalt in electrocatalytic oxygen evolution reaction
PublicationWater electrolysis is one of the most crucial processes in the development of new energy sources, where ultra-clean fuel is produced - hydrogen. Oxygen evolution reaction (OER) is the sluggish process of overall water splitting. Therefore, this study presents the design, characterization and electrochemical study of cobalt-based electrocatalysts embedded into porous carbons derived from an Al-metal–organic...
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Emerging Role of Adenylate Kinase 4 as a Metabolic Player Regulating Cellular Hypoxic Responses in Pulmonary Cells
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Triplet–Triplet Annihilation Upconverting Liposomes: Mechanistic Insights into the Role of Membranes in Two-Dimensional TTA-UC
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Influence of the addition of citric acid on the physico-chemical properties of poly(sorbitol sebacate-co- butylene sebacate)
PublicationThe article presents the results of the physicochemical properties of poly(sorbitol sebacate- co-butylene sebacate) (PSBS) obtained with 0.25; 0.5; 0.75; 1 mol of citric acid (KC). It was shown that PSBS obtained with 0.25 and 0.5 mol KC is characterized by the most optimal mechanical and thermal properties. As a result of the study, it was found that the use of sorbitol and citric acid allows obtaining ester materials with...
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Triplet–Triplet Annihilation Upconverting Liposomes: Mechanistic Insights into the Role of Membranes in Two-Dimensional TTA-UC
PublicationTriplet−triplet annihilation upconversion (TTA-UC) implemented in nanoparticle assemblies is of emerging interest in biomedical applications, including in drug delivery and imaging. As it is a bimolecular process, ensuring sufficient mobility of the sensitizer and annihilator to facilitate effective collision in the nanoparticle is key. Liposomes can provide the benefits of two-dimensional confinement and condensed concentration...
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The role of slowly biodegradable organic compounds in a full-scale biological nutrient removal activated sludge systems
PublicationThe aim of this study was to determine the immediate effects of slowly biodegradable substrates on the denitrification capability and phosphate release/uptake interactions for a full-scale biomass process from two large wastewater treatment plants (WWTPs) located in the cities of Gdansk and Gdynia (northern Poland). Since it is hard to distinguish the slowly biodegradable substrate in a direct way, a novel procedure based on batch...