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Search results for: CONTROLLED CRYSTALLIZATION
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Influence of controlled crystallization and SrF2 content on the structure and properties of Eu3+ doped phosphate glasses
PublicationNew phosphate glasses and glass-ceramics P2O5–Bi2O3–K2O–Nb2O5-SrF2 doped with Eu were synthesized and studied in this work. The influence of the SrF2 content (0–15 mol%) and the parameters of the heat treatment on their structural and optical properties were investigated. For the above purpose, the structural characterization by FTIR spectroscopy and XRD measurements was carried out, which showed a significant effect of SrF2 on...
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A randomized and controlled study of noninvasive hemodynamic monitoring as a guide to drug treatment of uncontrolled hypertensive patients
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Primary and secondary crystallization of poly(ethylene adipate)
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Primary and secondary crystallization of poly(ethylene adipate)
PublicationSecondary crystallization of PEA, occurring during DSC scan and performed after isothermal primary crystallization has been investigated. The high temperature exotherm peak has been attributed to the crystallization of amorphous fraction included between crystallites formed at the primary crystallization. The temperature position of the highest rate of the secondary crystallization depended on the temperature of the isothermal...
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Multi-region fuzzy logic controller with local PID controllers for U-tube steam generator in nuclear power plant
PublicationIn the paper, analysis of multi-region fuzzy logic controller with local PID controllers for steam generator of pressurized water reactor (PWR) working in wide range of thermal power changes is presented. The U-tube steam generator has a nonlinear dynamics depending on thermal power transferred from coolant of the primary loop of the PWR plant. Control of water level in the steam generator conducted by a traditional PID controller...
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CONCENTRATION OF NaCl SOLUTION BY MEMBRANE DISTILLATION INTEGRATED WITH CRYSTALLIZATION
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A current-controlled FET
PublicationA novel semiconductor device, viz., Horizontally-Split-Drain Current-Controlled Field-Effect Transistor (HSDCCFET) with two control electrodes is proposed in this works. For the sake of brevity, the device can be called a CCFET. Operating principle of the proposed transistor is based on one of the galvanomagnetic phenomena, the Biot-Savart-Laplace law and a Gradual Channel Detachment Effect (GCDE). The transistor is dedicated...
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Modeling and control of a redundantly actuated variable mass 3RRR planar manipulator controlled by a model-based feedforward and a model-based-proportional-derivative feedforward–feedback controller
PublicationIn the paper, dynamics of a complex mechatronics system is considered. A redundantly actuated planar manipulator is the base of the mechanical part of it. It is a 3RRR 1 platform based parallel manipulator. To control its trajectory, a model-based feedforward controller is employed. Three aspects are fundamental in the presented investigations. The first focus is on development of an accurate numerical model used to solve the inverse...
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Exploring the cocrystallization potential of urea and benzamide
PublicationThe cocrystallization landscape of benzamide and urea interacting with aliphatic and aromatic carboxylic acids was studied both experimentally and theoretically. Ten new cocrystals of benzamide were synthesized using an oriented samples approach via a fast dropped evaporation technique. Information about types of known bi-component cocrystals augmented with knowledge of simple binary eutectic mixtures was used for the analysis...
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Crystallization of space: Space-time fractals from fractal arithmetic
PublicationFractals such as the Cantor set can be equipped with intrinsic arithmetic operations (addition, subtraction, multiplication, division) that map the fractal into itself. The arithmetics allows one to define calculus and algebra intrinsic to the fractal in question, and one can formulate classical and quantum physics within the fractal set. In particular, fractals in space-time can be generated by means of homogeneous spaces associated...
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Micropatterning of BiVO 4 Thin Films Using Laser-Induced Crystallization
PublicationRelatively high temperatures even up to 500 °C are required to obtain bismuth vanadate (BiVO4) films with the scheelite monoclinic (s-m) structure that shows the highest photocatalytic activity. This requirement limits the possible choice of substrates. Moreover, high quality thin layers of crystalline BiVO4 cannot be prepared with current methods. In this study a light-induced crystallization approach is presented, which is a...
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Ammonium Hydroxide Mediated Hydrothermal Crystallization of Hydroxyapatite Coatings on Titanium Substrate
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Crystallization kinetics of poly(ethylene adipate) investigated by differential scanning calorimetry
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Melting and crystallization DSC profiles of milk fat depending on selected factors
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EFFECT OF MILK FAT COOLING RATE ON CRYSTALLIZATION PROCESS OF TRIACYLGLYCEROLS THEREIN
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Applications of the artificial intelligence methods for modeling of the ACAlSi7Cu alloy crystallization process
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The effect of catalyst and segmental composition on the crystallization of multiblock polyesters for biomedical applications
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Speech synthesis controlled by eye gazing
PublicationA method of communication based on eye gaze controlling is presented. Investigations of using gaze tracking have been carried out in various context applications. The solution proposed in the paper could be referred to as ''talking by eyes'' providing an innovative approach in the domain of speech synthesis. The application proposed is dedicated to disabled people, especially to persons in a so-called locked-in syndrome who cannot...
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Controlled English Interface for Knowledge Bases
PublicationThis paper describes the approach to interface for OWL Knowledge Bases based on Controlled English that is transformed directly to OWL 2 expressions and back. Two possible modes enable usage of the interface to specify Terminology, World Description as well as Integrity Constrains. Knowledge Base then can be validated against the Integrity Constrains to enable its continuous validation.
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Coordination of generator transformer controller and multi-parameter generator controller regulation algotrithms
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Generation of chirality in 4,4'-azopyridine by co-crystallization with optically active dicarboxylic acids
PublicationOtrzymano kokryształy anti-4,4'-azopirydyny z optycznie czynnymi kwasai: 9,10-dihydro-9,10-etanoantraceno-11,12-dikarboksylowym i trans-1,2-cykloheksnodikarboksylowym. Następnie pomierzono dichroizm kołowy otrzymanych kryształów. Dodatni znak efektu Cottona, odpowiadający niskoenergetycznemu wzbudzeniu elektronowemu n-pi*, został skorelowany z M helikalnością skręconego chromoforu Ar-N=N. Absolutna konfiguracja skręconej cząsteczki...
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Scaling diminution by heterogeneous crystallization in a filtration element integrated with membrane distillation module
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High Pressure Synthesis versus Calcination – Different Approaches to Crystallization of Zirconium Dioxide
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Increasing the conductivity of V2O5 -TeO2 glass by crystallization: structure and charge transfer studies
PublicationIn the present paper, V2O5-TeO2 glass...
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Increasing the conductivity of V2O5-TeO2 glass by crystallization: structure and charge transfer studies
PublicationIn the present paper, V 2 O 5 -TeO 2 glass was prepared by the melt-quenching technique. Crystallization of glass with a vanadium content higher than 35%mol results in an increase in electrical conductivity by a few orders of magnitude and a decrease in activation energy from ~0.40 to ~0.12 eV. In this work, a critical review of existing charge transfer models was presented on the example of V 2 O 5 -TeO 2 glass and glass–ceramics....
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Propensity of salicylamide and ethenzamide cocrystallization with aromatic carboxylic acids
PublicationThe cocrystallization of salicylamide (2-hydroxybenzamide, SMD) and ethenzamide (2-ethoxybenzamide, EMD) with aromatic carboxylic acids was examined both experimentally and theoretically. The supramolecular synthesis taking advantage of the droplet evaporative crystallization (DEC) technique was combined with powder diffraction and vibrational spectroscopy as the analytical tools. This led to identification of eleven new cocrystals...
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Implementation of power transformer controlled switching algorithm
PublicationThe article presents two new algorithms of controlled switching the power transformer. The main aim of the paper is to obtain formulas that determine the moments of closing of the circuit breaker poles. The study contains projects of control systems for both algorithms. Mathematical formulas for the time instants of the breaker poles closing were developed on the basis of electric circuit theory and magnetic circuit theory. The...
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Preparation of silver nanoparticles with controlled particle size
PublicationNanocząstki srebra wykazują zdolność absorpcji promieniowania widzialnego, która jest efektem istnienia powierzchniowego plazmonu. W zależności od kształtu i wielkości cząstek obserwuje się różną barwę koloidów srebra. W wyniku przeprowadzonych badań otrzymano nanocząstki srebra metodą chemicznej redukcji. Zaobserwowano wpływ rodzaju reduktora (kwas askorbinowy, borowodorek sodu), stabilizatora (PVP, PVA) oraz prekursora srebra...
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Novel digitally controlled drive for the vibratory conveyors
PublicationThe presented vibratory conveyors is used in the industry for continuous transportation of loose substances over short distances (2-10 m). The conveyor is applied for transportation in aseptic conditions. To obtain high efficiency for granulatedmass with different size of grain and different physical properties it is necessary to set the appropriate vibration amplitudeindependently of vibration frequency. This is not possible with...
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Experimental evaluation of the PLC-controlled drives properties.
PublicationPrzedstawiono strukturę stanowiska laboratoryjnego do testów oprogramowania PLC do sterowania napędami oraz do prowadzenia eksperymentalnych prób takich napędów. Omówiono zasady prowadzenia testów oprogramowania przed i w trakcie uruchamiania napędu. Przedstawiono przykładowe rezultaty doświadczeń.
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Music Mixing Process Controlled by Hand Gestures
PublicationW referacie przedstawiono system umożliwiający sterowanie procesami miksowania śladów nagrania muzycznego za pomocą gestów rąk. Przybliżono podstawy wielomodalnej percepcji argumentujące potrzebę powstania tego typu systemu oraz założenia przyjęte w trakcie jego tworzenia. Część sprzętowa systemu składa się z rzutnika multimedialnego, kamery internetowej, komputera klasy PC z zainstalowanym oprogramowaniem systemu oraz ekranu dla...
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Characterization of carbon deposit with controlled carburization degree
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Recent progress in controlled carbonization of (waste) polymers
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Fuzzy track controller for ships.
PublicationPrzedstawiono projekt regulatora trajektorii zrealizowanego w oparciu o logikę rozmytą. Zadaniem regulatora jest sterowanie statkiem wzdłuż zadanej trajektorii z uwzględnieniem prędkości. Zadana trajektoria przedstawiona została w postaci linii łamanej z wyznaczona wartością prędkości z jaką statek ma poruszać się po każdym odcinku. Opracowane reguły sterowania regulatora rozmytego trajektorii poddane zostały badaniom na statku...
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Optical activity of benzophenone and thiobenzophenone generated by spontaneous crystallization and inclusion complexation with cholic acid.
PublicationOtrzymano związki inkluzyjne benzofenonu i jego tioanalogu z kwasem cholowym. W zależności od stosowanej metody syntezy kompleksów inkluzyjnych benzofenonu powstawały one w dwóch różnych postaciach polimorficznych. Jedna z nich wykazuje istnienie cząsteczek gościa w czterech konformacjach, przy czym dominuje konformer o helikalności M. Struktura krystalograficzna kompleksu tiobenzofenonu z kwasem cholowym ujawniła obecność tylko...
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Kinetics studies of recrystallization process of metallic catalysts for ammonia synthesis
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Review on robust laser light interaction with titania – Patterning, crystallisation and ablation processes
PublicationTitanium dioxide is regarded as a very promising semiconducting material that is widely applied in many everyday-use products, devices, and processes. In general, those applications can be divided into energy or environmental categories, where a high conversion rate, and energy and power density are of particular interest. Therefore, many efforts are being put towards the elaboration of novel production routes, and improving the...
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Quasi-controlled Experimentations on the Impact of AOP on Software Comprehensibility
PublicationAspect-oriented programming (AOP) emerged as a paradigm to modularize the concerns that lead to interwoven code if implemented using traditional programming techniques. Unfortunately, the new constructs introduced by aspect-oriented (AO) languages result in both: (1) obstacles in modular reasoning, and (2) high coupling between aspects and the augmented modules. There have been numerous attempts to tackle these issues, but none...
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Semantic rules representation in controlled natural language in FluentEditor
PublicationThis paper presents a way of representation of semantic rules (SWRL) in controlled English in order to facilitate understanding the rules by humans interacting with a machine. This approach (implemented in FluentEditor) may be applied in many domains, where the understandability of the rules used to support a decision process is of great importance.
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Gesture-controlled Sound Mixing System With a Sonified Interface
PublicationIn this paper the Authors present a novel approach to sound mixing. It is materialized in a system that enables to mix sound with hand gestures recognized in a video stream. The system has been developed in such a way that mixing operations can be performed both with or without visual support. To check the hypothesis that the mixing process needs only an auditory display, the influence of audio information visualization on sound...
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Digital Implementation of a Novel Controlled Rectifier Synchronization Method
PublicationZ uwagi na zakłócenia spotykane w przebiegach napięćia zasilającego prostowniki sterowane, tradycyjna metoda synchronizacji wykrywająca przejście naopięcia przez zero nie zapewnia prawidłowego działania prostownika. W artykule przedstawiono nową metodę synchronizacji prostowników sterowanych tyrystorowych i tranzystorowych z siecią zasilającą. W artykule przedstawiono zależności teoretyczne oraz wyniki badań symulacyjnych i eksperymentalnych.
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Fluent Editor and Controlled Natural Language in Ontology Development
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In-vitro controlled release of doxorubicin from silica xerogels
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Review of Autonomous and Remotely Controlled Ships in Maritime Sector
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Design and construction of an industrial robot controlled by the ROS environment
PublicationThis engineering thesis focuses on the recognition of modern budgetary solutions of roboticarms and on the design and implementation of one of them. Historical solutions are discussedusing the example of the IRB6 robot and the modern approach - the Omron Viper 850. Thepaper includes a description of the design thought of the different parts. Mechanical, electrical andsoftware aspects are presented. In...
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Practical realisation of new method of synchronization for controlled rectifier.
PublicationW artykule zaprezentowano nową metodę synchronizacji sygnałów sterujących prostownika z siecią. W prezentowanej metodzie nie ma potrzeby wykrywania chwili przejścia napięcia zasilającego przez zero. Przedstawiono zależności teoretyczne oraz wyniki badań symulacyjnych i eksperymentalnych uzyskanych w systemie z procesorem sygnałowym.
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Luminescence enhancement in nanocrystalline Eu2O3 nanorods – Microwave hydrothermal crystallization and thermal degradation of cubic phase
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Crystallization Mechanism and Optical Properties of Antimony-Germanate-Silicate Glass-Ceramic Doped with Europium Ions
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Crystallization Kinetics and Structural Properties of the 45S5 Bioactive Glass and Glass-Ceramic Fiber Doped with Eu3+
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Fractional Order Dynamic Positioning Controller
PublicationImproving the performance of Dynamic Positioning System in such applications as station keeping, position mooring and slow speed references tracking requires improving the position and heading control precision. These goals can be achieved through the improvement of the ship control system. Fractional-order calculus is a very useful tool which extends classical, integer-order calculus and is used in contemporary modeling and control...