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Search results for: adaptive%20control
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Using On-line Measurement by Electronic Nose and Computer Simulations for Real-time Control at WWTP
PublicationContinuous investigation of wastewater quality can be carried out by a device called an e-nose. One important feature of the proposed real-time control system for WWTP is that using on-line measurements by e-nose together (Figure 1) with technological sets picked on this basis by means of computer models, it is possible to change treatment process parameters, depending on the current quality of wastewater. It can be used for the...
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Deep slot effect in the squirrel-cage induction motors with scalar (V/F) control
PublicationQualitative characteristics of the electrical drive considerably depend on identification accuracy of math model parameters. In particular, it is depend on detection accuracy of stator active resistance r1 that is used in calculation of flux linkages, rotary speed in sensorless control systems. Paper provides analysis of influence of stator deep slot effect to stator active resistance value
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Hydro Power Plant in the Process of Voltage Control in the Electric Power System and the System Restoration
PublicationThe article covers selected issues related to the share of hydroelectric power in the process of rebuilding the power system after black-out and voltage control during that process. Selected results of measurements made during the creation of the transmission chain for the need to start a block of a thermal power plant from a hydroelectric power plant were presented.
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The relationship between standard reduction potentials of catechins and biological activities involved in redox control
PublicationRedox homeostasis involves factors that ensure proper function of cells. The excess reactive oxygen species (ROS) leads to oxidative stress and increased risk of oxidative damage to cellular components. In contrast, upon reductive stress, insufficient ROS abundance may result in faulty cell signalling. It may be expected that dietary antioxidants, depending on their standard reduction potentials (E°), will affect both scenarios....
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Reliability of flue gas desulphurisation installations - the essential condition of efficient air pollution control
PublicationW celu minimalizacji niekorzystnego wpływu SO2 i SO3 na środowisko naturalne w wielu instalacjach skrubery odsiarczające gaz spalinowy (FGD) stosowane są do usuwania tlenków siarki z gazów wylotowych. Ostre warunki pracy skruberów i dodatkowego osprzętu powodują problemy korozyjne w powszechnie stosowanych materiałach konstrukcyjnych a awarie wywierają długookresowy wpływ na środowisko. Opisano najnowsze doświadczenia związane...
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Neural network based control system architecture proposal for underwatership hull cleaning robot.
PublicationPrzedstawiono model matematyczny podwodnej głowicy roboczej, oraz określono metodę jej pozycjonowania i orientacji w lokalnym środowisku. Zaproponowano architekturę układu sterowania, opartego na bazie sieci neuronowych, za pomocą którego można sterować podwodnym robotem, przeznaczonym do czyszczenia burt statku.
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Isolation of Citrus lemon extracellular vesicles: Development and process control using capillary electrophoresis
PublicationA new and scalable method for the isolation of extracellular vesicles (EV) from Citrus lemon juice samples was developed. The methodology included preliminary preconcentration of the sample using ultrafiltration (UF) followed by size-exclusion chromatography (SEC) purification and final preconcentration of the eluates. Transmission electron microscopy and proteomic analysis showed that isolates contained exosome-like vesicles, exocyst-positive...
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Control of the bridge span vibration with high coefficient passive damper. Theoretical consideration and application
PublicationThe research was carried out due to the problem of vibration on the lively pedestrian drawbridge across the Motlawa River in the city of Gdansk. In the design stage, the main span of the footbridge showed unfavorable dynamic properties, which may create a comfort problem for pedestrians. The first vertical bending eigenfrequency was recognized as 1.64 Hz. The original design of the footbridge was equipped with a driving cylinder...
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MPPT and GMPPT Implementation for Buck-Boost Mode Control of quasi-Z-Source Inverter
PublicationThe focus is on the maximum power point tracking implementation for the buck-boost voltage mode control of a single-phase multilevel inverter based on a three-level neutral point clamped quasi-Z-source topology. To utilize shoot-through states only when boost function is needed and avoid it in the buck mode, two different control approaches are required. This work proposes merged control system which provides switching between...
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Design of Intelligent Low-Voltage Load Switch for Remote Control System in Smart Grid
PublicationCurrent low-voltage load switches do not support remote disconnect/connect and real-time monitoring of a disconnect/connect state. Addressing to these issues, this paper presents a low-voltage load switch for a smart remote control system, which uses a one-chip microcontroller board and a DC step motor drive mechanism and provides the feedback on the switch status also. Arrears disconnect and full-pay connect control is implemented...
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Towards Knowledge Formalization and Sharing in a Cognitive Vision Platform for Hazard Control (CVP-HC)
PublicationHazards are present in all workplaces and can result in serious injuries, short and long-term illnesses, or death. In this context, management of safety is essential to ensure the occupational health of workers. Aiming to assist the safety manage-ment process, especially in industrial environments, a Cognitive Vision Platform for Hazard Control (CVP-HC) has been proposed. The CVP-HC is a scalable yet adaptable system capable of...
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Laboratory bioreactor with pH control system for investigations of hydrogen production in the dark fermentation process
PublicationThe work presents the construction of a low-cost research bioreactor equipped with a pH control sys-tem. The developed bioreactor was applied for hydrogen production in the dark fermentation process using Enterobacter aerogenes ATCC 13048. Presented paper compares the results obtained during the process without and with pH regulation for different feed materials: glucose, energetic poplar hydro-lysates, acid whey and glycerol....
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Solving the Problem of Dynamic Adaptability of Artificial Intelligence Systems that Control Dynamic Technical Objects
PublicationThis paper investigates the increase in the response speed and stability of artificial intelligence systems that control dynamic technical objects. The problem of calculating the optimal time of switching an artificial intelligence system between software classes by the criterion of the rigidity degree of the model of a control object is considered. The solution of this problem is proposed for the general case of the control object...
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Intelligent control of integrated wastewater treatment system under full range of operating conditions.
PublicationW rozprawie przedstawiono struktury i algorytmy pozwalające na efektywne sterowanie łącznym usuwaniem azotu, fosforu i związków węgla w zintegrowanym systemie ściekowym, w szerokim zakresie jego obciążeń. Obiektem badań była oczyszczalnia ścieków w Kartuzach. Do sterowania tak złożonym i skomplikowanym systemem zaproponowano trójpoziomową i trójwarstwową, hierarchiczną strukturę sterowania. Poziomy sterowania (Nadzorujący, Optymalizacyjny,...
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Hierarchical model predictive control of integrated quality and quantity in drinking water distribution systems
PublicationW artykule zaproponowane zostało zintegrowane podejście do sterowania ilością i jakością w systemach zaopatrzenia i dystrybucji wody. Sterowanie zintegrowane polega na optymalizowaniu kosztów operacyjnych zaspokajając zapotrzebowanie na wodę o wymaganej jakości i spełniając ograniczenia systemu. To zagadnienie sterowania optymalizującego jest zagadnieniem złożonym z powodu nieliniowości, dużego wymiaru, ograniczeń na wyjście, występowania...
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Application of the CCHE1D model to the problem of flood control in Nysa Kłodzka reservoir system in Poland
PublicationW pracy przedstawiono wyniki zastosowania modelu CCHE1D do sterowania pracą zbiorników retencyjnych na Nysie Kłodzkiej w trakcie przejścia fali wezbraniowej wywołanej opadami deszczu na zlewni. Okazało się, że zastosowane do sterowania algorytmy optymalizacyjne są efektywne tylko w przypadku stosowania uproszczonych modeli transformacji fali wezbraniowej w rzece. Modele hydrodynamiczne, jak zastosowany model CCHE1D wydłużają proces...
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The modal control vibration surveillance of manipulators as a mean of improving operating parameters of industrial robots.
PublicationNowe zastosowania robotów, a przede wszystkim - operacje szybkiego montażu, technika kosmiczna oraz operacje manipulacyjne dużymi masami (niekiedy przekraczającymi masę własną manipulatora), stawiają przed robotami coraz to większe wymagania dotyczące m.in. dużej dokładności i powtarzalności pozycjonowania. Spełnienie powyższych wymagań, bez redukcji poziomu drgań występujących w układzie nośnym manipulatora, jest trudne do uzyskania....
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Towards simulations and experiments of high speed milling vibration surveillance by the spindle speed control
PublicationPraca poświęcona jest nowemu podejściu do nadzorowania drgań wirujących narzędzi we współczesnych frezarkach. Przeprowadzono analizę skrawania smukłym frezem kulistym. Jako rezultat sterowania optymlano-liniowego otrzymano program chwilowych zmian prędkości obrotowej pozwalający uzyskać redukację drgań. Metodę zweryfikowano eksperymentalnie.
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Emission Control Science and Technology
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TRANSACTIONS OF THE INSTITUTE OF MEASUREMENT AND CONTROL
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Andrzej Chybicki dr inż.
PeopleA graduate of the Faculty of Electronics, Telecommunications and Informatics at the Gdańsk University of Technology, PhD in technical sciences in the field of IT specializing in distributed data processing in IT . Aimed at exploiting the achievements and knowledge in the field of industrial research. He cooperated with a number of companies including OpeGieka Elbląg, Reson Inc., Powel Sp. z o. o., Wasat, Better Solutions, the European...
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Accuracy of Trajectory Tracking Based on Nonlinear Guidance Logic for Hydrographic Unmanned Surface Vessels
PublicationA new trend in recent years for hydrographic measurement in water bodies is the use of unmanned surface vehicles (USVs). In the process of navigation by USVs, it is particularly important to control position precisely on the measuring profile. Precise navigation with respect to the measuring profile avoids registration of redundant data and thus saves time and survey costs. This article addresses the issue of precise navigation...
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Michał Mazur dr inż.
PeopleAktualne zainteresowania inżynieria mechaniczna, robotyka, drgania mechaniczne, analiza modalna, sterowanie, systemy czasu rzeczywistego Wybrane publikacje Kaliński K., Galewski M., Mazur M., Chodnicki M, 2017, Modelling and Simulation Of A New Variable Stiffness Holder for Milling Of Flexible Details, Polish Maritime Research, vol 24, ss. 115-124 Kaliński K. J., Mazur M.: Optimal control at energy performance index of the mobile...
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Joanna Rymaszewska prof. dr hab. n. med.
PeopleCV Joanna Rymaszewska Wroclaw University of Science and Technology, Wroclaw, Poland +48 601 98 26 24, joanna.rymaszewska@pwr.edu.pl orcid.org/0000-0001-8985-3592 2023 → Professor of Wroclaw University of Science and Technology (WUST), Poland 2011 → 2023 Professor of Wroclaw Medical University (WMU), PL 2016 → 2022 Head of the Department of Psychiatry, Wroclaw Medical University 2016 → 2022 Head of the Clinic of Psychiatry,...
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Tomasz Zubowicz dr inż.
PeopleTomasz Zubowicz has received his M.Sc. Eng. degree in Control Engineering from the Faculty of Electrical and Control Engineering at the Gda{\'n}sk University of Technology (GUT) in $2008$. He received his Ph.D. Eng. (Hons.) in the field of Control Engineering from the same faculty in $2019$. In $2012$ he became a permanent staff member at the Department of Intelligent Control and Decision Support Systems at GUT and a member of...
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Journal of Low Frequency Noise Vibration and Active Control
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An International Journal of Optimization and Control: Theories & Applications (IJOCTA)
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Kongzhi Lilun Yu Yinyong/Control Theory and Applications
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Dianji yu Kongzhi Xuebao/Electric Machines and Control
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JOURNAL OF DYNAMIC SYSTEMS MEASUREMENT AND CONTROL-TRANSACTIONS OF THE ASME
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Mechanical properties of single V2O5 nanocrystal - nanoindentation measurement in control of the max-load
Open Research DataThe DataSet contains the nanoindentation curves (indentation force Fn vs penetrationPd) for a single V2O5 nanocrystal supported on a substrate. The measurements were performed in control of the maximum load of Berkovich indenter force from 2 to 50 mN.
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Mechanical properties of single V2O5 nanocrystal - nanoindentation measurement in control of the max-depth
Open Research DataThe DataSet contains the nanoindentation curves (indentation force Fn vs penetrationPd) for a single V2O5 nanocrystal supported on a substrate. The measurements were performed in control of the maximum depth of Berkovich indenter penetration: 60, 70, and 100 nm.
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Możliwości sterowania mocą bierną elektrowni wiatrowej : Reactive power control methods in wind parks
PublicationReferat poświęcony jest zagadnieniu sterowania mocą bierną w elektrowniach wiatrowych. W pierwszej części referatu opisano tło problemu sterowania mocą bierną w parkach wiatrowych, podano powody, dla których moc bierna powinna podlegać regulacji oraz zarysowano metody, które mogą być do niej użyte. W celu sprawdzenia proponowanych metod kompensacji, zbudowano model matematyczny elektrowni wiatrowej, którego poszczególne elementy...
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Safety and outcomes of laparoscopic sleeve gastrectomy in patients older than 60: a case-control study
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Fractional-Order PID Controller (FOPID)-Based Iterative Learning Control for a Nonlinear Boiler System
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Linking Macro- and Micro-structural Analysis with Luminescence Control in Oxynitride Phosphors for Light-Emitting Diodes
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ppGpp-Dependent Negative Control of DNA Replication of Shiga Toxin-Converting Bacteriophages in Escherichia coli
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Hidden Structural Evolution and Bond Valence Control in Near-Infrared Phosphors for Light-Emitting Diodes
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Grid-Forming Operation of Energy-Router Based on Model Predictive Control with Improved Dynamic Performance
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Simplified simulation technique of rotating, induction heated, calender rolls for study of temperature field control
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Application of Structural Control Systems for the Cables of Cable-Stayed Bridges: State-of-the-Art and State-of-the-Practice
PublicationStay cables are one of the key elements of cable-stayed bridges and are characterized by lightweight, low inherent damping, and high flexibility. They are continuously subjected to small-to large-amplitude vibrations due to various types of dynamic loads that may, in the long term, cause fatigue and fracture problems for the cable system, and may eventually compromise the safety of cable-stayed bridges. Thus, several countermeasures...
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Applying Hidden Markov Models to Visual Activity Analysis for Simple Digital Control Panel Operations
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Hybrid super‐twisting fractional‐order terminal sliding mode control for rolling spherical robot
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<title>Cavity control system: optimization methods for single cavity driving and envelope detection</title>
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<title>Design and simulation of FPGA implementation of a RF control system for the TESLA test facility</title>
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FPGA and optical-network-based LLRF distributed control system for TESLA-XFEL linear accelerator
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Automatic resource identification for FPGA-based reconfigurable measurement and control systems with mezzanines in FMC standard
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Design of three-phase three-level CIC T-source inverter with maximum boost control
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Application of Feedback Linearization for Air Gap Flux Control of Induction Motor in the Field Weakening Region
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Ambulatory blood pressure in mild hypertensive women taking oral contraceptives a case-control study
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