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Wyniki wyszukiwania dla: MORA
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Immobilized TiO2for Phenol Degradation in a Pilot-Scale Photocatalytic Reactor
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Investigation of OH radicals formation on the surface of TiO2/N photocatalyst at the presence of terephthalic acid solution. Estimation of optimal conditions
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Application of carbon-coated TiO2 for decomposition of methylene blue in a photocatalytic membrane reactor
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Studies of Exfoliated Graphite (EG) for Heavy Oil Sorption
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Preparation of TiO2/C Photocatalyst by Ethanol Modification of Hydrolysed Titania TiO(OH)2 in a Pressure Reactor
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Hybridization of adsorptivity with photocatalytic activity—carbon-coated anatase
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A new method for preparation of rutile phase titania photoactive under visible light
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Activity of TiO2 Photocatalyst Modified with H2WO4 for Degradation of Organic Compounds in Water
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Preparation and Characterization of Rutile-Type TiO2 Doped with Cu
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Nasal endoscopy: an adjunct to patient selection for preoperative low-dose CT examination in chronic rhinosinusitis
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Dental Condition as A Factor Modifying the Transmission of the Sound Vibration in the Skull Bones
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Sudden Hearing Loss Treated With Hyperbaric Oxygen (HBO) – Case Study
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Technical aspects of nasal cavity surgery through the Le Fort I down-fracture approach: An otolaryngologist’s point of view based on 90 patients’ experience
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Simulation of the number of storm overflows considering changes in precipitation dynamics and the urbanisation of the catchment area: a probabilistic approach
PublikacjaThis paper presents a probabilistic methodology that allows the study of the interactions between changes in rainfall dynamics and impervious areas in urban catchment on a long- and short-term basis. The proposed probabilistic model predict future storm overflows while taking into account the dynamics of changes in impervious areas and rainfall. In this model, a logistic regression method was used to simulate overflow resulting...
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Five-phase squirrel-cage motor. Construction and drive properties
PublikacjaThis paper presents the simulation and experimental results of a five-phase squirrel-cage induction motor. The new machine has been designed to operate in a drive system with third harmonic rotor flux injection in order to improve the motor torque utilization. The motor structure, the mathematical model as well as the laboratory prototype have been described. The motor speed-torque characteristics and transients are elaborated...
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Właściwości napędowe pięciofazowego silnika indukcyjnego klatkowego
PublikacjaPracę poświęcono prezentacji najważniejszych właściwości elektrycznego układu napędowego z pięciofazowym silnikiem indukcyjnym klatkowym. Wskazano na zalety takiego napędu potwierdzając je wynikami symulacji i eksperymentów. Zaprezentowano pokazano prototyp pięciofazowego silnika indukcyjnego, przedstawiono jego charakterystyki statyczne w stanach pracy bezawaryjnej jak też przy uszkodzeniach faz uzwojenia stojana. Wykorzystując...
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Carbon-coated anatase: adsorption and decomposition of phenol in water
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Carbon-modified TiO2 photocatalyst by ethanol carbonisation
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Photocatalytic water disinfection under the artificial solar light by fructose-modified TiO2
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A new preparation method of catalyst for ammonia synthesis
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Influence of titanium dioxide modification on the antibacterial properties
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TiO2/glucose nanomaterials with enhanced antibacterial properties
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The Benefits of Using Saccharose for Photocatalytic Water Disinfection
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Photodecomposition of dyes on Fe-C-TiO2 photocatalysts under UV radiation supported by photo-Fenton process
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Bilateral Facial Palsy in Rapidly Progressive Course of Wegener’s Granulomatosis: A Case Report
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Influence of the frequency of consumption of foodstuffs on the risk of overweight and obesity in a group of post-menopausal women
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Financial Markets and Bankruptcy Systems: Is there a Relationship?
PublikacjaPurpose: Filling the cognitive gap in the theory of ex-post transaction costs, i.e., at the stage of enforcing market transactions by examining the relationship between friendliness/severity of the bankruptcy and restructuring law towards debtors, the level of development of financial markets, the effectiveness of the judicial system and the rate of debt recovery. Design/Methodology/Approach: In the research, the following methods...
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The clamping selection method to reduce the vibration of large-size workpieces during the face milling process
PublikacjaThe article introduces a method for selecting the best clamping conditions to obtain vibration reduction during milling of large-size workpiece. It is based on experimental modal analysis performed for a set of assumed, fixing conditions of a considered workpiece to identify Frequency Response Functions (FRFs) for each tightening torque of the mounting screws. Simulated plots of periodically changing nominal cutting forces are...
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Adjusting the Stiffness of Supports during Milling of a Large-Size Workpiece Using the Salp Swarm Algorithm
PublikacjaThis paper concerns the problem of vibration reduction during milling. For this purpose, it is proposed that the standard supports of the workpiece be replaced with adjustable stiffness supports. This affects the modal parameters of the whole system, i.e., object and its supports, which is essential from the point of view of the relative tool–workpiece vibrations. To reduce the vibration level during milling, it is necessary to...
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Sustainability reporting in justice systems: a comparative research in two European countries
PublikacjaPurpose – That on accountability in public organizations is quite an old debate. Its introduction in judicial systems is, however, still viewed with some suspicion, due to its potential trade-off with independence and impartiality. Nevertheless, the need to respond to the demands for greater transparency and accountability has also pushed judicial organizations to establish a dialogue with a wide range of subjects. This study aims...
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Characterization of PVDF/Graphene Nanocomposite Membranes for Water Desalination with Enhanced Antifungal Activity
PublikacjaSeawater desalination is a worldwide concern for the sustainable production of drinking water. In this regard, membrane distillation (MD) has shown the potential for effective brine treatment. However, the lack of appropriate MD membranes limits its industrial expansion since they experience fouling and wetting issues. Therefore, hydrophobic membranes are promising candidates to successfully deal with such phenomena that are typical...
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Synthesis of Cyano-Benzylidene Xanthene Synthons Using a Diprotic Brønsted Acid Catalyst, and Their Application as Efficient Inhibitors of Aluminum Corrosion in Alkaline Solutions
PublikacjaNovel cyano-benzylidene xanthene derivatives were synthesized using one-pot and condensation reactions. A diprotic Brønsted acid (i.e., oxalic acid) was used as an effective catalyst for the promotion of the synthesis process of the new starting xanthene–aldehyde compound. Different xanthene concentrations (ca. 0.1–2.0 mM) were applied as corrosion inhibitors to control the alkaline uniform corrosion of aluminum. Measurements were...
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Sensorless low speed PMSM motor control with cogging torque compensation
PublikacjaThe paper presents sensorless control of a low speed permanent magnet synchronous machine with use of modified state observer. An overview of the PMSM motor used in the research setup was presented. The problem of drive torque ripple, resulting mainly from the occurrence of a significant cogging torque, was discussed. A solution compensating the torque ripple of the PMSM motor was proposed. A start-up procedure of the speed control...
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Euthyroid sick syndrome as a prognostic indicator of COVID-19 pulmonary involvement, associated with poorer disease prognosis and increased mortality
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Carbon modified TiO2 photocatalysts for water purification
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Effect of process parameters on fouling and stability of MF/UF TiO2 membranes in a photocatalytic membrane reactor
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Influence of TiO2 structure on its photocatalytic activity towards acetaldehyde decomposition
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Ocena epidemiologiczna nowotworów gruczołów ślinowych u pacjentów leczonych w Klinice Otolaryngologii we Wrocławiu w latach 2001–2010
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Preoperative Ultrasonographic Assessment of the Anterior Pelvic Plane for Personalized Total Hip Replacement
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Computed Tomography in Evaluation of Revision Hip Arthroplasty Outcomes
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Dual-Energy Computed Tomography in Loosening of Revision Hip Prosthesis
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Factors influencing the development of otitis media with effusion in children
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The presence of bacterial microcolonies on the maxillary sinus ciliary epithelium in healthy young individuals
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Diversity of microorganisms from forest soils differently polluted with heavy metals
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Soil chemical properties affect the reaction of forest soil bacteria to drought and rewetting stress
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Pulse-Width Modulation Template for Five-Level Switch-Clamped H-Bridge-Based Cascaded Multilevel Inverter
PublikacjaThis article presents a carrier-based pulse-width modulation (PWM) template for a 5-level, H bridge-based cascaded multilevel inverter (MLI). The developed control concept generates adequate modulation template for this inverter topology wherein a sinusoidal modulating waveform is modified to fit in a single triangular carrier signal range. With this modulation approach, classical multiplicity and synchronization of the triangular...
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Winding function approach based design of novel five-phase brushless doubly fed induction generator
PublikacjaThe paper presents the concept of the new design of the five-phase brushless doubly fed induction generator. The generator is dedicated to the modern wind turbine. The innovative design approach uses a five-phase power supply from the stator control winding side of the generator with a stator three-phase classic power winding. The research results presented indicate that the electromagnetic coupling between the control and power...
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Działanie napędu z pięciofazowym silnikiem indukcyjnym przy uszkodzeniu faz stojana
PublikacjaW artykule przedstawiono najważniejsze zalety wielofazowych napędów elektrycznych. Zaprezentowano budowę pięciofazowego silnika indukcyjnego klatkowego wraz z możliwymi rozwiązaniami uzwojenia stojana, które wpływają na właściwości takiego silnika. Wskazano na zwiększoną niezawodność napędów pięcio-fazowych. Właściwości napędowe potwierdzono wynikami badań eksperymentalnych.
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Five-phase Induction Motor Drive Operation During Stator Phase Fault
PublikacjaThe article presents the most important advantages of multi-phase electric drives. The construction of a five-phase squirrel cage induction motor together with possible stator winding distribution cases is presented, which affect the properties of such motor. Increased reliability of five-phase drives was indicated. The drive operation properties were confirmed by experimental results.
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A grey box model of glucose fermentation and syntrophic oxidation in microbial fuel cells
PublikacjaIn this work, the fermentative and oxidative processes taking place in a microbial fuel cell (MFC) fed with glucose were studied and modeled. The model accounting for the bioelectrochemical processes was based on ordinary, Monod-type differential equations. The model parameters were estimated using experimental results obtained from three H-type MFCs operated at open or closed circuits and fed with glucose or ethanol. The experimental...