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High-performance liquid chromatography in group-type separation and technical or process analytics of petroleum products
PublicationW pracy dokonano przeglądu i poddano krytycznej ocenie metody oznaczania składu grupowego produktów naftowych o różnej lotności, zarówno metody znormalizowane, jak i opisane w literaturze naukowej. W zdecydowanej większości są to metody wykorzystujące technikę chromatografii cieczowej w układzie faz normalnych (NP-HPLC). Na podstawie danych z literatury oraz własnych studiów i badań należy stwierdzić, że im wyższy zakres temperatury...
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Thermostable Pyrococcus woesei beta-D-galactosidase - high level expression, purification and biochemical properties
PublicationGen kodujący termostabilną beta-D-galaktozydazę Pyrococcus woesei zamplifikowano z zastosowaniem techniki PCR i klonowano w komórkach Escherichia coli. Skonstruowany system ekspresji genu pozwolił na uzyskanie znacznej ilości termostabilnego białka w komórkach mezofilnego gospodarza. Enzym oczyszczono z zastosowaniem chromatografii powinowactwa po wcześniejszej denaturacji termicznej białek Escherichia coli i scharakteryzowano...
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RNS reverse high-speed converter with quasi-regular structure based on the Chinese Remainder Theorem
PublicationPrzedstawiono dwie nowe architektury szybkiego konwertera z systemuresztowego do systemu binarnego oparte o chińskie tw. o resztach. Zastosowano nowe struktury 4-operandowych sumatorów modulo 2M. Pierwsza ze struktur oparta jest o wstępne sumowanie najstarszych bitów wektorów sumy i przeniesienia na wyjściu sumatora CSA, natomiast druga o bezpośrednie wykrywanie przekroczenia 2M. Konwerter wykorzystujący drugą ze struktur charakteryzuje...
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Experimental study of the fuel jet combustion in high temperature and low oxygen content exhaust gases
PublicationPrzeprowadzono badania eksperymentalne spalania pojedynczego strumienia paliwa gazowego. Paliwo podawano współosiowo do generowanych przez konwencjonalny palnik gazowy spalin o wysokiej temperaturze i niskiej zawartości tlenu. Badano wpływ zawartości tlenu w utleniaczu na widzialność płomienia i skład produktów spalania.
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Statistical Data Pre-Processing and Time Series Incorporation for High-Efficacy Calibration of Low-Cost NO2 Sensor Using Machine Learning
PublicationAir pollution stands as a significant modern-day challenge impacting life quality, the environment, and the economy. It comprises various pollutants like gases, particulate matter, biological molecules, and more, stemming from sources such as vehicle emissions, industrial operations, agriculture, and natural events. Nitrogen dioxide (NO2), among these harmful gases, is notably prevalent in densely populated urban regions. Given...
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Silicon oxycarbide-tin nanocomposite derived from a UV crosslinked single source preceramic precursor as high-performance anode materials for Li-ion batteries
PublicationIn this work, we report an innovative and facile UV light-assisted synthesis of a nanocomposite based on silicon oxycarbide (SiOC) and tin nanoparticles. SiOC ceramic matrix, containing a conductive free carbon phase, participates in lithium-ion storage, and buffers the volume changes of Li-alloying/de-alloying material. The reported synthesis procedure through a polymer-derived ceramic route involves the preparation of a single-source...
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Highly Oriented Zirconium Nitride and Oxynitride Coatings Deposited via High‐Power Impulse Magnetron Sputtering: Crystal‐Facet‐Driven Corrosion Behavior in Domestic Wastewater
PublicationHerein, highly crystalline ZrxNy and ZrxNyOz coatings are achieved by the deposition via high‐power impulse magnetron sputtering. Various N2 and N2/O2 gas mixtures with argon are investigated. The chemical composition and, as a result, mechanical properties of the deposited layer can be tailored along with morphological and crystallographic structural changes. The corrosion resistance behavior is studied by potentiodynamic measurements...
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Designing a High-sensitivity Microscale Triple-band Biosensor based on Terahertz MTMs to provide a perfect absorber for Non-Melanoma Skin Cancer diagnostic
PublicationNon-melanoma skin cancer (NMSC) is among the most prevalent forms of cancer originating in the top layer of the skin, with basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) being its primary categories. While both types are highly treatable, the success of treatment hinges on early diagnosis. Early-stage NMSC detection can be achieved through clinical examination, typically involving visual inspection. An alternative,...
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Self-Presentation Strategies, Fear of Success and Anticipation of Future Success among University and High School Students
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Toward Wide-Band High-Resolution Analog-to-Digital Converters Using Hybrid Filter Bank Architecture
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Application of 3D graphic software and GIS in visual impact assessment of high-voltage overhead transmission lines
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High-Quality Gluten-Free Sponge Cakes without Sucrose: Inulin-Type Fructans as Sugar Alternatives
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Appliance of High Speed Camera during Industrial Exploitation on the Example of Static and Dynamic Tests of Steel Probes
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Determinants of Spatial Variability of Ice Thickness in Lakes in High Mountains of the Temperate Zone—The Case of the Tatra Mountains
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Zn-dust derived Zn/ZnO cermet fillers for thermally conductive High-k epoxy dielectrics
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High yield conversion of biowaste coffee grounds into hierarchical porous carbon for superior capacitive energy storage
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Striking influence of NiO catalyst diameter on the carbonization of polypropylene into carbon nanomaterials and their high performance in the adsorption of oils
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Hierarchical porous carbon materials from nanosized metal-organic complex for high-performance symmetrical supercapacitor
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All-fiber tunable devices based on high-index photonic crystal fibers filled with liquid crystals
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A facile approach to prepare porous cup-stacked carbon nanotube with high performance in adsorption of methylene blue
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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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A new technique with high reproducibility to estimate renal oxygenation using BOLD-MRI in chronic kidney disease
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Treatment of high blood pressure in elderly and octogenarians: European Society of Hypertension statement on blood pressure targets
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Friction Tuned Mass Dampers in Seismic-Excited High-Rise Buildings with SSI Effects: A Reliability Assessment
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High-normal blood pressure is associated with increased resting sympathetic activity but normal responses to stress tests
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Characteristics of a new polymer gel for high-dose gradient dosimetry using a micro optical CT scanner
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Enabling a Stable High-Power Lithium-Bromine Flow Battery Using Task-Specific Ionic Liquids
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Suppression of the High-Frequency Errors in Surface Topography Measurements Based on Comparison of Various Spline Filtering Methods
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Association between high arterial stiffness and left ventricular filling pressures in patients with acute myocardial infarction
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Core/shell structured Ti/Si/C composite for high-performance zinc-ion hybrid capacitor
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Impact of the depletion of high-abundance proteins in blood plasma/serum on the proteome of these media in growing farm animals
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Accelerator Technology and High Energy Physics Experiments, Photonics Applications and Web Engineering, Wilga, May 2012
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Super Broadband Near-Infrared Phosphors with High Radiant Flux as Future Light Sources for Spectroscopy Applications
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Impurity trapped exciton states related to rare earth ions in crystals under high hydrostatic pressure
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Effect of high temperature exposure on the fatigue damage development of X10CrMoVNb9-1 steel for power plant pipes
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Effect of plasma nitriding process on the fatigue and high temperature corrosion resistance of Inconel 740H nickel alloy
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A Novel Method for High Temperature Fatigue Testing of Nickel Superalloy Turbine Blades with Additional NDT Diagnostics
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TiCoCrFeMn (BCC + C14) High-Entropy Alloy Multiphase Structure Analysis Based on the Theory of Molecular Orbitals
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Microstrip line with short-circuited edge as a high-pass filter operating up to millimeter-wave frequencies
PublicationPrzedstawiono prosty planarny filtr górnoprzepustowy wykorzystujący linię mikropaskową ze zwartym brzegiem. Układy zaprojektowano w taki sposób, aby pasmo przepustowe rozpoczynało się w zakresie K lub Ka. Wykonano dwa prototypy: na podłożu w postaci warstwy dielektrycznej wykonanej z ceramiki alundowej oraz na podłożu organicznym o niskiej przenikalności elektrycznej. Wykazano dużą zgodność teoretycznych i pomierzonych charakterystyk...
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Variations in the near-surface atmospheric electric field at high latitudes and ionospheric potential during geomagnetic perturbations
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EGATEC: A new high-resolution engineering model of the global atmospheric electric circuit—Currents in the lower atmosphere
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Administration of tocilizumab to patients with high concentrations of IL-6 in the course of COVID-19 is associated with a better prognosis
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Circulating Tumor Cells as a Marker of Disseminated Disease in Patients with Newly Diagnosed High-Risk Prostate Cancer
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Short clinically-based prediction model to forecast transition to psychosis in individuals at clinical high risk state
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Retention time and peak width in the combined pH/organic modifier gradient high performance liquid chromatography
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Effect of sample-preparation methods on the quantification of selected flavonoids in plant materials by high performance liquid chromatography
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A high-accuracy complex-phase method of simulating X-ray propagation through a multi-lens system
PublicationThe propagation of X-ray waves through an optical system consisting of many X-ray refractive lenses is considered. For solving the problem for an electromagnetic wave, a finite-difference method is applied. The error of simulation is analytically estimated and investigated. It was found that a very detailed difference grid is required for reliable and accurate calculations of the propagation of X-ray waves through a multi-lens...
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Modelling of the High Speed Multi-Pole Synchronous Generator for Application in More Electric Aircraft Power Systems
PublicationIn this paper different models of the synchronous generator are presented. The simulation results compared with the measurements are shown. Certain physical phenomena are included in described models for the porpoise of adequate analysis of the more electric aircraft power system. For different modelling levels, such as functional level or behavioural level, different physical phenomena have been included. Simulation results for...
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Analiza potencjalnych klastrow high-tech w województwie pomorskim i instrumentów wspierania ich rozwoju
PublicationCelem pracy jest sformułowanie założeń odnośnie do polityki samorządowej dotyczącej wspierania przedsiębiorczości środkami publicznymi. Uczestnikami tego przedsięwzięcia są dwie strony, jak następuje:- Podmioty gospodarcze, na ogół w początkowej fazie rozwoju, które w przeciwieństwie do przedsiębiorstw już dobrze usytuowanych na rynku, mają problemy z pokonaniem rozlicznych barier w fazie wzrostowej. - Agendy państwowe, w szczególności...
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A Mechatronic System for Building the Map of Optimal Spindle Speeds During High Speed Milling of Flexible Details
PublicationW pracy przedstawiono mechatroniczny system tworzenia mapy optymalnych prędkości obrotowych wrzeciona w celu nadzorowania drgań typu chatter podczas frezowania szybkościowego przedmiotów podatnych. System ten składa się z części pomiarowej oraz części obliczeniowej, w której wykorzystuje się oprogramowanie autorskie i komercyjne. Na bazie uogólnionego warunku Liao-Younga utworzono mapy optymalnych prędkości obrotowych wrzeciona,...