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Search results for: KILN DRYING
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Instantaneous impedance evaluation of dissolution of aisi 304 stainless steel during intergranular corrosion
PublicationCelem pracy było uzyskanie informacji dotyczących zróżnicowania parametrów elektrycznych uzyskanych na podstawie zarejestrowanych chwilowych widm impedancyjnych w zakresie aktywacji i reaktywacji roztwarzania wysokostopowej stali austenitycznej AISI podczas postępującego procesu korozji międzykrystalicznej. Badania prowadzono z wykorzystaniem dynamicznej elektrochemicznej spektroskopii impedancyjnej (DEIS). Pomiary wykonywano ''on-line''...
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ECT image analysis methods for shear zone measurements during silo discharging process
PublicationW pracy przedstawiono wyniki pomiarów zmian koncentracji piasku bezkohezyjnego zachodzących w cylindrycznym modelu silosu opróżnianym grawitacyjnie, w którym występowały silne efekty dynamiczne. Pomiary wykonano z zastosowaniem tomografii pojemnościowej. Badania przeprowadzono dla zróżnicowanego zagęszczenia początkowego piasku oraz różnego stopnia szorstkości ścian. Szczegółowej analizie poddano zmianę koncentracji materiału sypkiego...
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Mass spectrometric identification of 13C-Labeled metaboloites during anaerobic propanoic acid oxidation
PublicationBiowaste digestion is a possibility to gain biogas as a renewable fuel source. However, the anaerobic food chain may be disrupted by, e.g., substrate overload or by inhibitors, leading to the accumulation of volatile fatty acids (VFAs), predominantly of propanoic acid (PA). VFA Accumulation may cause a rapid pH decrease, less biogas production, or even a total inhibition. To maintain high biogas productivity or to prevent a collapse...
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On a method of modelling and simulation of vibration surveillance during ball end milling of flexible details
PublicationPraca dotyczy nadzorowania drgań podczas frezowania przedmiotów podatnych smukłym frezem kulistym, z uwzględnieniem zgodności parametrów modelu modalnego. Przeprowadzono analizę dynamiki procesu frezowania. Następnie przedstawiono analizę niestacjonarnego układu drgającego, w którym wyodrębniono podukłady: modalny, strukturalny i łączący. Do minimalizacji poziomu drgań zastosowano dopasowanie prędkości obrotowej wrzeciona do optymalnego...
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Modelling and investigation of vibration surveillance during ball end milling of curved flexible details
PublicationPraca dotyczy nadzorowania drgań podczas frezowania zakrzywionych przedmiotów podatnych smukłym frezem kulistym, z uwzględnieniem zgodności parametrów modelu modalnego. Dokonano analizy dynamiki niestacjonarnego układu drgającego, w którym wyodrębniono podukłady: modalny, strukturalny i łączący. Do minimalizacji poziomu drgań zastosowano dopasowanie prędkości obrotowej wrzeciona do optymalnego kąta przesunięcia fazowego. Zasadność...
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On a method of modelling and simulation of vibration surveillance during ball end milling of flexible details
PublicationPraca dotyczy nadzorowania drgań podczas frezowania przedmiotów podatnych smukłym frezem kulistym, z uwzględnieniem zgodności parametrów modelu modalnego. Przeprowadzono analizę dynamiki procesu frezowania. Następnie przedstawiono analizę niestacjonarnego układu drgającego, w którym wyodrębniono podukłady: modalny, strukturalny i łączący. Do minimalizacji poziomu drgań zastosowano dopasowanie prędkości obrotowej wrzeciona do optymalnego...
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Nuclear retention of pre-mRNA involving Cajal bodies during meiotic prophase in plants
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Dynamics of Microbiome Changes in the Endometrium and Uterine Cervix during Embryo Implantation: A Comparative Analysis
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Effect of Na doping on photoluminescence and laser stimulated nonlinear optical features of ZnO nanostructures
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Utility of an unitary-shredding method to evaluate the conditions and selection of constructional features during grinding
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Strategies for Coping With Stress Used by Nurses in Poland and Belarus During the COVID-19 Pandemic
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COMPARATIVE ANALYSIS OF COPING STRATEGIES WITH STRESS OF STUDENTS IN DIFFERENT LEARNING CONDITIONS DURING THE PANDEMIC
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One tube mutation detection using sensitive fluorescent dyeing of MutS protected DNA
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Global Structural Behavior and Leg Strength for Jack-Up Rigs with Varying Environmental Parameters
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Clot Lysis Time Predicts Stroke During Anticoagulant Therapy in Patients with Atrial Fibrillation
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Social support against depression in young adults’ group during COVID-19 pandemic.
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Territorial Extrapolation of Basic Data as a Solution of the Problem of Its Deficiency during Mass Appraisal
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Transformations of Tetrahydrocannabinol, tetrahydrocannabinolic acid and cannabinol during their extraction from Cannabis sativa L.
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Influence of Al3+co-doping on the spectral properties of europium doped Ca9Y(PO4)7
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Stabilization of Eu3+ under a reductive atmosphere by the Al3+ co-doping of Sr2SiO4:Eu2+/Eu3+
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Studies on the behaviour of titanium activation foils during long-term exposure at the JET tokamak
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Water Behavior of Aerogels Obtained from Chemically Modified Potato Starches during Hydration
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Low Field NMR Studies of Wheat Bread Enriched with Potato Juice During Staling
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Triticale extrudates – Changes of macrostructure, mechanical properties and molecular water dynamics during hydration
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Detection of some volatile degradation products released during photoexposition of ranitidine in a solid state
PublicationRanitidine (RAN) is on top of the list of prescribed drugs, due to its popularity as a selective H2-receptor antagonist, which efficiently decreases the amount of acid produced in the stomach. RAN is not stable both in a solid state and in a solution, which creates manufacturing problems, requires appropriate storage conditions, and results in a short drug shelf-life. The aim of this work was to study the emission of volatile...
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Formability and microstructure evolution mechanisms of Ti6Al4V alloy during a novel hot stamping process
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Deformation Behavior and Microstructural Evolution during Hot Stamping of TA15 Sheets: Experimentation and Modelling
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Drawing conclusions about reliability of power systems from small number of statistical data
PublicationW artykule podjęto próbę udzielenia odpowiedzi na pytanie, czy możliwe jest wyciągnięcie przydatnych w praktyce wniosków o niezawodności elementów technicznych, wchodzących w skład systemów energetycznych, mając do dyspozycji nieliczne dane statystyczne. W opinii autora jest to możliwe. Wskazano dwie drogi postępowania. Pierwsza opiera się na wykorzystaniu metod statystycznych. Druga wykorzystuje elementy teorii zbiorów rozmytych.
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Determination of ability of machines with hydraulic drive during start-up in low ambient temperatures
PublicationW artykule przedstawiono sposoby określania zdatności maszyn z napędem hydraulicznym podczas rozruchu w niskich temperaturach otoczenia. Przedstawiono wyniki badań eksperymentalnych i symulacji komputerowej nagrzewania się układów maszyny roboczych i zespołów hydraulicznych podczas rozruchu w warunkach szoku termicznego.
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Comparison of bioactive compounds, antioxidant and antiproliferative activities of Mon Thong durian during ripening
PublicationCelem przeprowadzonych badań było oszacowanie zmian zawartości związków odżywczych, związków bioaktywnych, kwasów tłuszczowych oraz przeciwutleniaczy w owocach duriana w trakcie różnych etapów procesu dojrzewania. W badaniach wykorzystano testy CURRAC, DPPH, ABTS i FRAP. Stwierdzono, że całkowita zawartość polifenoli, flawonoidów, kwasu askorbimowego, tanin oraz poziom aktywności przeciwutleniającej jest dla owoców niedojrzałych,...
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Performance of Watermarking-based DTD Algorithm Under Time-varying Echo Path Conditions
PublicationA novel double-talk detection (DTD) algorithm based on techniques similar to those used for audio signal watermarking was introduced by the authors. The application of the described DTD algorithm within acoustic echo cancellation system is presented. The problem of DTD robustness to time-varying conditions of acoustic echo path is discussed and explanation as to why such conditions occur in practical situations is provided. The...
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Changes in the Secretion of Melatonin and Selected Adipokines during the Progression of Parkinson’s Disease—Preliminary Studies
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Lactose Content and Selected Quality Parameters of Sheep Milk Fermented Beverages during Storage
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Blood plasma protein and lipid profile changes in calves during the first week of life
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Aquaporin 2: Identification and analysis of expression in calves’ urine during their first month of life
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Measurement of dynamic pulsations in bulk solid during silo discharging using ECT method
PublicationW pracy przedstawiono wyniki pomiarów pulsacji materiału sypkiego pomieroznych z zastosowaniem metody pomiarowej ECT. Analizę dynamicznych zmian koncetracji przperowadzono dla podstawowych(surowych) danych pomiarowych oraz danych zrekonstruowanych
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Safety of Bariatric Surgery in ≥ 65-Year-Old Patients During the COVID-19 Pandemic
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Prediction of cutting forces during micro end milling considering chip thickness accumulation
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The Evaluation of Surface Integrity During Machining of Inconel 718 with Various Laser Assistance Strategies
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Clinical Training during the COVID-19 Pandemic: Experiences of Nursing Students and Implications for Education
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A method for preliminary estimation of the length of midship body block to be inserted during ship’s conversion
PublicationThe paper presents a method for preliminary estimation of the length of the midship body block, which inserted in the original hull, increases the deadweight of the ship in line with a required quantity. The method may be useful for establishing the scope of conversion to better adjust the ship for transportation tasks. The problem is formulated by using a mathematical model so selected that its solution, under set of assumptions,...
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New procedure for the examination of the degradation of volatile organonitrogen compounds during the treatment of industrial effluents
PublicationWe present a new procedure for the determination of 32 volatile organonitrogen compounds in samples of industrial effluents with a complex matrix. The procedure, based on dispersive liquid–liquid microex-traction followed by gas chromatography with nitrogen-phosphorus and mass spectrometric detection, wasoptimized and validated. Optimization of the extraction included the type of extraction and disperser sol-vent, disperser solvent...
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A strategy for GPS data processing in a precise local network during high solar activity
PublicationThis paper presents the analyses connected with reduction of errors from ionospheric refraction using GPS data from local satellite networks. This is particularly essential during rising solar activity. The Bernese GPS Software v. 4.2 was used, as an analytical tool. The test data included measurements from a geodynamic network SUDETES situated in the Sudety Mountains across the border between the Czech Republic and Poland. A local...
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DMI measurements impact on a position estimation with lack of GNSS signals during Mobile Mapping
PublicationNowadays, Mobile Laser Scanning is common in use in addition to geodesy measurements. The data which are provided by the system characterizes with high precision and flexibility. To precise mapping, the accuracy of the data should be maintained. In Poland, according to the minister’s dispositions, the accuracy of the data should not exceeded 10 cm. With fully operated system it is easy to uphold, but there is a situation when a...
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Optimization of electrochemical doping approach resulting in highly photoactive iodine-doped titania nanotubes
PublicationThe paper focuses on the optimization procedure concerning the synthesis method resulting in highly ordered titania nanotubes doped with iodine atoms. The doping process was based on the electrochemical treatment of a titania nanotube layer immersed in a potassium iodide (KI) solution acting as an iodine precursor. A number of endeavors were undertaken in order to optimize the doping conditions. Electrolyte concentration, reaction...
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Investigation on Damage-Involved Structural Response of Colliding Steel Structures during Ground Motions
PublicationEarthquakes are the most unpredictable damaging loads which can affect civil engineering structures. Due to insufficient separation distance between adjacent structures with different dynamic properties, structural collisions may occur during ground motions. Although the research on structural pounding has recently been much advanced, the studies have mainly been conducted for concrete structures. The aim of this paper is to show...
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Strain gauges monitoring of arch bridge over the Vistula river in Toruń during construction
PublicationIn 2013 one of the biggest Polish road bridges over the Vistula was built in Torun. Considering the use of original engineering solutions and innovative assembly it was decided on monitoring of strain gauges and assessment of building’s behaviour during its construction. The research was aimed at determining the degree of strain and the assessment of proper work of main arch girders during assembly phases. This work presents the...
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Navigational decision support system during approach manoeuvre in emergency STS transfer operation
PublicationThe paper is concerned with the problem of safe trajectory planning for approaching during emergency STS (Ship to Ship) transfer operation with oil spill. The safe trajectory means that the way points does not cross in the area of the environment with the static and dynamic obstacles and at the same time satisfies ship's stopping and speed deceleration performance. The evolutionary path planning algorithm is used to determine trajectory...
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State of the art in the field of emission reduction of sulphur dioxide produced during coal combustion
PublicationThe need for clean coal technologies to reduce the adverse environmental impact of coal combustion products has been grounded. The article deals with information concerning present and future technologies, directed towards the struggle against air pollution by SO2, produced during coal combustion. Their classification and critical rating from economical and technological points of views (including those developed by authors) have...
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Deformation Analysis of a Composite Bridge during Proof Loading Using Point Cloud Processing
PublicationRemote sensing in structural diagnostics has recently been gaining attention. These techniques allow the creation of three-dimensional projections of the measured objects, and are relatively easy to use. One of the most popular branches of remote sensing is terrestrial laser scanning. Laser scanners are fast and efficient, gathering up to one million points per second. However, the weakness of terrestrial laser scanning is the...