Search results for: TIME-DELAY CONTROL

• Optimization of Execution Time under Power Consumption Constraints in a Heterogeneous Parallel System with GPUs and CPUs

  Publication

  • P. Czarnul
  • P. Rościszewski

  - Year 2014

  The paper proposes an approach for parallelization of computations across a collection of clusters with heterogeneous nodes with both GPUs and CPUs. The proposed system partitions input data into chunks and assigns to par- ticular devices for processing using OpenCL kernels defined by the user. The sys- tem is able to minimize the execution time of the application while maintaining the power consumption of the utilized GPUs and...

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• Laboratory bioreactor with pH control system for investigations of hydrogen production in the dark fermentation process

  Publication

  • B. Szulczyński
  • K. Kucharska
  • M. A. Kamiński

  - Aparatura Badawcza i Dydaktyczna - Year 2019

  The 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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• Impact of R/X ratio of distribution network on selection and control of energy storage units

  Publication

  • A. Szultka
  • R. Małkowski
  • S. Czapp
  • S. Szultka

  - Year 2017

  The interest in energy storage is still increasing. Energy storage units are installed in high voltage networks, medium voltage networks and low voltage distribution networks as well. These units are often used to improve power quality. One of the criteria for improving power quality is reducing voltage deviations. Depending on the type of network and specifying its R/X ratio, this criterion can be fulfilled by control of active...

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• Real‐Time PPG Signal Conditioning with Long Short‐Term Memory (LSTM) Network for Wearable Devices

  Publication

  • M. Wójcikowski

  - SENSORS - Year 2022

  This paper presents an algorithm for real‐time detection of the heart rate measured on a person’s wrist using a wearable device with a photoplethysmographic (PPG) sensor and accelerometer. The proposed algorithm consists of an appropriately trained LSTM network and the Time‐Domain Heart Rate (TDHR) algorithm for peak detection in the PPG waveform. The Long Short‐Term Memory (LSTM) network uses the signals from the accelerometer...

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• New procedure for the control of the treatment of industrial effluents to remove volatile organosulfur compounds

  Publication

  • G. Boczkaj
  • P. Makoś-Chełstowska
  • A. Fernandes
  • A. Przyjazny

  - JOURNAL OF SEPARATION SCIENCE - Year 2016

  We present a new procedure for the determination of volatile organosulfur compounds in samples of industrial effluents using dispersive liquid–liquid microextraction and gas chromatography with flame photometric detection. Initially, the extraction parameters were optimized. These included: type and volume of extraction solvent, volume of disperser solvent, salting out effect, pH, time and speed of centrifugation as well as extraction...

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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

  Publication

  • K. Lipiński

  - MECHATRONICS - Year 2016

  In 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...

• Natural ventilation performance of family building in cold climate during windless time

  Publication

  • R. Antczak-Jarząbska
  • M. Niedostatkiewicz

  - Diagnostyka - Year 2018

  In this paper, the field measurements results are presented on the stack ventilation effect. The paper presents the results of performance (air change rate ACH) natural ventilation for building with inlet gap measured for the transitional season (between heating and summer season). The measurements were performed during a windless time. The house was located in northern Poland, in a cold climate region. The measurement system...

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• Development of an Advanced Control Algorithm for DAB DC/DC Converters: Inrush Current Limitation and Enhanced Operation in Transient States.

  Publication

  • S. Bachman
  • M. Turzyński

  - Bulletin of the Polish Academy of Sciences-Technical Sciences - Year 2024

  The publication addresses the dynamic state challenges encountered during development of a dual active bridge (DAB) converter within DC microgrid systems. The conventional startup method is identified as instigating a cascade of unfavorable outcomes, encompassing elevated starting current, transformer current asymmetry, DC voltage distortions, EMI and heightened thermal stress on semiconductor components. Additionally, it necessitates...

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• Real-time facial feature tracking in poor quality thermal imagery

  Publication

  • A. Kwaśniewska
  • J. Rumiński

  - Year 2016

  Recently, facial feature tracking systems have become more and more popular because of many possible use cases. Especially in medical applications location of the face and facial features are very useful. Many researches have presented methods to detect and track facial features in visible light. However, facial feature analysis in thermography may also be very advantageous. Some examples of using infrared imagery in medicine include...

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• Designing Control and Protection Systems with Regard to Integrated Functional Safety and Cybersecurity Aspects

  Publication

  • M. Śliwiński
  • E. Piesik

  - ENERGIES - Year 2021

  This article addresses current problems of risk analysis and probabilistic modelling for functional safety management in the life cycle of safety-related systems. Two main stages in the lifecycle of these systems are distinguished, namely the design and operation. The risk analysis and probabilistic modelling differ in these stages in view of available knowledge and data. Due to the complexity and uncertainty involved, both qualitative...

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• Scheduling for Industrial Control Traffic Using Massive MIMO and Large Intelligent Surfaces

  Publication

  • E. Fitzgerald
  • M. Pióro

  - Year 2023

  Industry 4.0, with its focus on flexibility and customizability, is pushing in the direction of wireless communication in future smart factories, in particular massive multiple-input multiple-output (MIMO), and its future evolution Large Intelligent Surfaces (LIS), which provide more reliable channel quality than previous technologies. As such, there arises the need to perform efficient scheduling of industrial control traffic...

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• The dependence of linear viscoelasticity limits of cold-recycled mixtures on time of curing and compaction method

  Publication

  • M. Jaczewski
  • C. Szydłowski
  • B. Dołżycki

  - Materials Today: Proceedings - Year 2023

  Cold-recycled mixtures are currently among the most widely used and investigated methods that enable recycling of old pavement structures in an environmentally friendly manner. Upon milling, the old pavement structure – whose gradation can be improved with addition of virgin aggregate – is mixed and compacted at ambient temperature. The main binding agents are bituminous emulsion and cement. Due to their dual binding behaviour,...

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• Human Factors and Functional Safety Analysis in Designing the Control Rooms of Industrial Hazardous Plants

  Publication

  • K. Kosmowski

  - Year 2014

  In this work some aspects of human factors and functional safety analysis in designing the control rooms of industrial hazardous plants are presented. The “defence in depth” (D-in-D) concept is outlined. Some designing issues of the alarm system (AS) with regard to human factors to be supported using the human reliability analysis (HRA) are discussed. The AS and decision support system (DSS), when properly designed, would contribute...

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• MEMORY EFFECT ANALYSIS USING PIECEWISE CUBIC B-SPLINE OF TIME FRACTIONAL DIFFUSION EQUATION

  Publication

  • M. Shafiq
  • F. A. Abdullah
  • M. Abbas
  • A. Sm Alzaidi
  • M. Riaz

  - FRACTALS-COMPLEX GEOMETRY PATTERNS AND SCALING IN NATURE AND SOCIETY - Year 2022

  The purpose of this work is to study the memory effect analysis of Caputo–Fabrizio time fractional diffusion equation by means of cubic B-spline functions. The Caputo–Fabrizio interpretation of fractional derivative involves a non-singular kernel that permits to describe some class of material heterogeneities and the effect of memory more effectively. The proposed numerical technique relies on finite difference approach and cubic...

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• Dynamic fracture of brittle shells in a space-time adaptive isogeometric phase field framework

  Publication

  • K. Paul
  • T. Hughes
  • C. Landis
  • R. Sauer

  - Year 2022

  Phase field models for fracture prediction gained popularity as the formulation does not require the specification of ad-hoc criteria and no discontinuities are inserted in the body. This work focuses on dynamic crack evolution of brittle shell structures considering large deformations. The energy contributions from in-plane and out-of-plane deformations are separately split into tensile and compressive components and the resulting...

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• TIME-OF-FLIGHT DIFFERENTIAL ELECTRON SCATTERING FROM MOLECULAR TARGETS: BENCHMARK CROSS SECTIONS

  Publication

  • M. Zawadzki
  • M. Khakoo

  - Year 2023

  We report time-of-flight differential cross section (DCS) measurements for the electron impact excitation transition in H2. In this work, agreement between available theory and experiment is excellent overall, and marks a transition in electron molecule scattering where differential scattering of excitation is found to be in such precise agreement. We also prove that the newly built apparatus can be used for accurate measurement...

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• Space-Time Conservation Method applied to numerical solution of water hammer equations

  Publication

  • K. Weinerowska-Bords

  - TASK Quarterly - Year 2011

  Artykuł poświęcony jest metodzie czasoprzestrzennych objętości skończonych (STC) zastosowanej do przypadku uderzenia hydraulicznego w stalowym przewodzie pracującym pod ciśnieniem. Metoda STC ze względu na swoje własności numeryczne - m.in. wysoką dokładność - może być interesującą alternatywą dla tradycyjnych metod numerycznych, szczególnie w przypadku, gdy efekty numeryczne mają bardzo silny wpływ na rozwiązanie, tym samym utrudniając...

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• Impact of Shifting Time-Window Post-Processing on the Quality of Face Detection Algorithms

  Publication

  • A. Blokus
  • H. Krawczyk

  - Year 2018

  We consider binary classification algorithms, which operate on single frames from video sequences. Such a class of algorithms is named OFA (One Frame Analyzed). Two such algorithms for facial detection are compared in terms of their susceptibility to the FSA (Frame Sequence Analysis) method. It introduces a shifting time-window improvement, which includes the temporal context of frames in a post-processing step that improves the...

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• Mechanical Design, Construction and Control of a Lower Extremity Exoskeleton Robot Prototype with a new structure in the form of three-wheeled Mobile robot

  Publication

  • H. Nejatbakhsh Esfahani

  - Year 2017

  In this paper, mechanical design, dynamic modeling, construction and Fuzzy computed torque control of a lab prototype of lower extremity exoskeleton robot with a new structure in the form of three-wheeled Mobile robot is presented. One of the most important applications of next generation of lower extremity exoskeleton robot is usability as smart vehicle. In order to autonomously moving of this robot which is the foundation...

• Determination of time dependence of coated metal electrical and electrochemical parameters during exposure using principal component analysis

  Publication

  • A. Miszczyk
  • K. Darowicki

  - PROGRESS IN ORGANIC COATINGS - Year 2016

  The use of the principal component analysis (PCA) permits the complex and quantitative analysis of the time dependence of electrical and electrochemical parameters of coated metal obtained by fitting impedance data. So far, changes in electrical and electrochemical parameters during exposure were analyzed independently. In this way, some of the information contained in the relationship between changes in parameters over time are...

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• Influence of the Square Wave Voltage on Dynamical Properties of a Flat Voltammetric Electrode in the Time Domain by the Electrochemical Reversible Reaction

  Publication

  • K. Suchocki

  - Year 2018

  In this article there is a presentation of the analysis of the polarizing voltage shape influencing dynamic properties of voltammetric electrodes when on their surface reversible reaction takes place in the time domain. The electrode polarization with linearly increasing voltage and with a square component, was analyzed. The analysis that were conducted showed that the voltammetric electrode behaves like a first order transducer....

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• Optical Parameters Stability Over Time of Porous Phantoms Mimicking Tissues

  Open Research Data

  open access

  • P. Listewnik
  • M. Ronowska
  • M. Szczerska

  Optical phantoms are used to validate optical measurement methods. The stability of their optical parameters over time allows them to be used and stored over long-term periods while maintaining their optical parameters. The aim of the presented research was to investigate the stability of fabricated porous phantoms, which can be used as a lung phantom...

• Journal of Control Science and Engineering

  Journals

  ISSN: 2328-2231

• Foundations and Trends in Systems and Control

  Journals

  ISSN: 2325-6818 , eISSN: 2325-6826

• Journal of Control Science and Engineering

  Journals

  ISSN: 1687-5249 , eISSN: 1687-5257

• AUTOMATIC CONTROL AND COMPUTER SCIENCES

  Journals

  ISSN: 0146-4116 , eISSN: 1558-108X

• Control Engineering and Applied Informatics

  Journals

  ISSN: 1454-8658

• Integrated Blood Pressure Control

  Journals

  ISSN: 1178-7104

• Mathematical Control and Related Fields

  Journals

  ISSN: 2156-8472 , eISSN: 2156-8499

• Evolution Equations and Control Theory

  Journals

  ISSN: 2163-2480

• International Journal of Automation and Control

  Journals

  ISSN: 1740-7516 , eISSN: 1740-7524

• Journal of Money Laundering Control

  Journals

  ISSN: 1368-5201 , eISSN: 1758-7808

• Antimicrobial Resistance and Infection Control

  Journals

  ISSN: 2047-2994

• GMS Hygiene and Infection Control

  Journals

  ISSN: 2196-5226

• Electrical Control and Communication Engineering

  Journals

  ISSN: 2255-9140 , eISSN: 2255-9159

• Mediterranean Journal of Measurement and Control

  Journals

  ISSN: 1743-9310

• Modelling, Measurement and Control C

  Journals

  ISSN: 1259-5977

• International Journal of Dynamics and Control

  Journals

  ISSN: 2195-268X , eISSN: 2195-2698

• Numerical Algebra Control and Optimization

  Journals

  ISSN: 2155-3289 , eISSN: 2155-3297

• WSEAS Transactions on Systems and Control

  Journals

  ISSN: 1991-8763

• INFECTION CONTROL AND HOSPITAL EPIDEMIOLOGY

  Journals

  ISSN: 0899-823X , eISSN: 1559-6834

• Chinese Journal of Schistosomiasis Control

  Journals

  ISSN: 1005-6661

• Modelling, Measurement and Control B

  Journals

  ISSN: 1259-5969

• International Journal of Control and Automation

  Journals

  ISSN: 2005-4297

• MATHEMATICS OF CONTROL SIGNALS AND SYSTEMS

  Journals

  ISSN: 0932-4194 , eISSN: 1435-568X

• JOURNAL OF GUIDANCE CONTROL AND DYNAMICS

  Journals

  ISSN: 0731-5090 , eISSN: 1533-3884

• AMERICAN JOURNAL OF INFECTION CONTROL

  Journals

  ISSN: 0196-6553 , eISSN: 1527-3296

• Journal of Robotics and Control (JRC)

  Journals

  ISSN: 2715-5056 , eISSN: 2715-5072

• Nonlinear Analysis-Modelling and Control

  Journals

  ISSN: 1392-5113

• IEEE Control Systems Letters

  Journals

  eISSN: 2475-1456