Search results for: fractional order control

• Fire Protection and Materials Flammability Control by Artificial Intelligence

  Publication

  • H. Vahabi
  • M. Naser El Dine
  • M. Saeb

  - FIRE TECHNOLOGY - Year 2022

  Fire safety has become a major challenge of materials developers because of the massive production of organic materials, often combustibles, and their use for different purposes. In this sense, fire safety is critically considered in the development of engineering materials [1, 2]. The multiplicity of parameters contributing to the development of formulation of flame-retardant materials from one side and the sustainability concerns...

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• Nicole Nawrot dr inż.

  People

  Department of Sanitary Engineering

  Dr. Eng. Nicole Nawrot has been employed at the Department of Sanitary Engineering since 2016. In 2021, she obtained a PhD in the field of engineering and technical sciences in the discipline of environmental engineering, mining and energy. Doctoral thesis entitled "Heavy metals in urban retention tanks bottom sediments: distribution, source tracking, and evaluation of phytostabilization adaptability and performance of P. australis...

• Preconditioners with Low Memory Requirements for Higher-Order Finite-Element Method Applied to Solving Maxwell’s Equations on Multicore CPUs and GPUs

  Publication

  • A. Dziekoński
  • G. Fotyga
  • M. Mrozowski

  - IEEE Access - Year 2018

  This paper discusses two fast implementations of the conjugate gradient iterative method using a hierarchical multilevel preconditioner to solve the complex-valued, sparse systems obtained using the higher order finite-element method applied to the solution of the time-harmonic Maxwell equations. In the first implementation, denoted PCG-V, a classical V-cycle is applied and the system of equations on the lowest level is solved...

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• Single and Dual-GPU Generalized Sparse Eigenvalue Solvers for Finding a Few Low-Order Resonances of a Microwave Cavity Using the Finite-Element Method

  Publication

  • A. Dziekoński
  • M. Mrozowski

  - RADIOENGINEERING - Year 2018

  This paper presents two fast generalized eigenvalue solvers for sparse symmetric matrices that arise when electromagnetic cavity resonances are investigated using the higher-order finite element method (FEM). To find a few loworder resonances, the locally optimal block preconditioned conjugate gradient (LOBPCG) algorithm with null-space deflation is applied. The computations are expedited by using one or two graphical processing...

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• Positive solutions to second order four-point boundary value problems for impulsive differential equations

  Publication

  • T. Jankowski

  - APPLIED MATHEMATICS AND COMPUTATION - Year 2008

  Praca dotyczy problemów brzegowych dla równań różniczkowych drugiego rzędu z impulsami. Podane zostały warunki dostateczne na istnienie trzech dodatnich rozwiązań takich problemów z czteropunktowymi warunkami brzegowymi. W badaniach korzystano z twierdzenia Leggetta-Williamsa.

• Three positive solutions to second-order three-point impulsive differential equations with deviating arguments

  Publication

  • T. Jankowski

  - INTERNATIONAL JOURNAL OF COMPUTER MATHEMATICS - Year 2010

  Stosując tw. Leggetta-Williamsa, pokazano że rozpatrywany trzypunktowy problem brzegowy z impulsami ma dodatnie rozwiązania (trzy). Otrzymane twierdzenia dotyczą przypadku opóźnionego oraz wyprzedzonego. W pracy podano przykład i pokazano, że przyjęte założenia są spełnione.

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• Generalized solution of mixed problems for first order partial differential equations with state dependent delays

  Publication

  • A. Gołaszewska

  - International Journal of Pure and Applied Mathematics - Year 2006

  W pracy zostało udowodnione twierdzenie o istnieniu i jednoznaczności rozwiązań dla zagadnień początkowo-brzegowych z cząstkowym równaniem różniczkowo-funkcyjnym z opóźnionym argumentem zależnym od funkcji niewiadomej. Użyto metody bicharakterystyk. Jednoznaczność rozwiązań wykazano metodą porównawczą, istnienie - metodą ciągów przybliżeń.

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• A high-order compact difference algorithm for half-staggered grids for laminar and turbulent incompressible flows

  Publication

  • A. Tyliszczak

  - JOURNAL OF COMPUTATIONAL PHYSICS - Year 2014

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• High-order compact difference algorithm on half-staggered meshes for low Mach number flows

  Publication

  • A. Tyliszczak

  - COMPUTERS & FLUIDS - Year 2016

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• Modelling of First- and Second-order Chemical Reactions on ARUZ – Massively-parallel FPGA-based Machine

  Publication

  • P. Amrozik
  • K. Halagan
  • K. Rudnicki

  - Year 2021

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• Circular Dichroism Imaging: Mapping the Local Supramolecular Order in Thin Films of Chiral Functional Polymers

  Publication

  • F. Zinna
  • C. Resta
  • M. Górecki
  • G. Pescitelli
  • L. Di
  • T. Jávorfi
  • R. Hussain
  • G. Siligardi

  - MACROMOLECULES - Year 2017

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• Structure of the twist-bend nematic phase with respect to the orientational molecular order of the thioether-linked dimers

  Publication

  • A. Kocot
  • B. Loska
  • Y. Arakawa
  • K. Merkel

  - Physical Review E - Year 2022

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• Biaxial order and a rotation of the minor director in the nematic phase of an organo-siloxane tetrapode by the electric field

  Publication

  • K. Merkel
  • M. Nagaraj
  • A. Kocot
  • A. Kohlmeier
  • G. Mehl
  • J. Vij

  - JOURNAL OF CHEMICAL PHYSICS - Year 2012

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• Orientational Order and Dynamics of Nematic Multipodes Based on Carbosilazane Cores Using Optical and Dielectric Spectroscopy

  Publication

  • L. Tajber
  • A. Kocot
  • J. Vij
  • K. Merkel
  • J. Zalewska-Rejdak
  • G. Mehl
  • R. Elsässer
  • J. Goodby
  • M. Veith

  - MACROMOLECULES - Year 2002

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• Solvability of three point boundary value problems for second order differential equations with deviating arguments

  Publication

  • T. Jankowski

  - Year 2005

  Badano problem istnienia rozwiązań dla równań różniczkowych rzędu drugiego z trzypunktowymi warunkami brzegowymi. Podano warunki dostateczne dla istnienia ekstremalnych lub kwazi-ekstremalnych rozwiązań powyższych problemów. Przedmiotem badań były również nierówności różniczkowe z odchylonymi argumentami.

• Evaluation of quality of electric power distribution network elements in order to maintain functional and technical safety

  Publication

  • M. Kwiesielewicz

  - Year 2005

  Praca dotyczy wieloatrybutowego systemu oceny elementów sieci elektroenergetycznej do celów zapewnienia jej bezpieczeństwa funkcjonalnego i technicznego. Rozważana sieć składa się z dużej liczby elementów, ocenianych jakościowo i ilościowo. Zaproponowana metoda składa się z dwóch etapów: (i)wstępnego wyboru niewielkiej liczby elementów niebezpiecznych w oparciu o małą liczbę informacji (ii) wykonaniu uszeregowania wybranych elementów...

• First-order magnetic transition in single-crystalline CaFe2As2 detected by 75As nuclear magnetic resonance

  Publication

  • S. Baek
  • N. Curro
  • T. Klimczuk
  • E. Bauer
  • F. Ronning
  • J. D. Thompson

  - PHYSICAL REVIEW B - Year 2009

  Przedstawione są wyniki badań jądrowego rezonansu magnetycznego na 75As dla kryształów CaFe2As2. Wyniki wskazują, że strukturalne i magnetyczne przejścia w CaFe2As2 są silnie skorelowane i są pierwszego rodzaju.

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• Physical and mathematical modelling of implant-fascia system in order to improve laparoscopic repair of ventral hernia

  Publication

  • A. Tomaszewska
  • I. Lubowiecka
  • C. K. Szymczak
  • M. Śmietański
  • B. Meronk
  • P. Kłosowski
  • K. Bury

  - CLINICAL BIOMECHANICS - Year 2013

  This paper describes an investigation of biomechanical behaviour of hernia repair, which is focused on the selection of safe linking of certain type of implant with fascia in laparoscopic operation. The strength of various fixations of the implant to the fascia is analysed. Methods: The research is based on experimental observations of operated hernia model behaviour during a dynamic impulse load corresponding to post-operative...

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• Existence of positive solutions to third order differential equations with advanced arguments and nonlocal boundary conditions

  Publication

  • T. Jankowski

  - NONLINEAR ANALYSIS-REAL WORLD APPLICATIONS - Year 2012

  Praca dotyczy warunków dostatecznych na istnienie dodatnich rozwiązań dla równań różniczkowych z wyprzedzonymi argumentami i warunkami brzegowymi zawierającymi całki Stieltjesa.

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• Galerkin formulations with Greville quadrature rules for isogeometric shell analysis: Higher order elements and locking

  Publication

  • T. Hughes
  • Z. Zou
  • M. Scott
  • R. Sauer
  • E. Savitha

  - Year 2022

  We propose new Greville quadrature schemes that asymptotically require only four in-plane points for Reissner-Mindlin (RM) shell elements and nine in-plane points for Kirchhoff-Love (KL) shell elements in B-spline and NURBS-based isogeometric shell analysis, independent of the polynomial degree of the elements. For polynomial degrees 5 and 6, the approach delivers high accuracy, low computational cost, and alleviates membrane and...

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• Stormwater and snowmelt runoff storage control and flash flood hazard forecasting in the urbanized coastal basin.

  Publication

  • M. Szydłowski
  • P. Mikos-Studnicka
  • P. Zima
  • K. Weinerowska-Bords
  • J. Hakiel
  • D. Kalinowska

  - Year 2015

  City of Gdańsk is located in a coastal region where changing climatic conditions increase the frequency of extreme weather events. Developing urbanization affects the hydrology of natural basins by simplification of the drainage system and reduction of infiltration and base flow. Consequently greater runoff rates flow into storm water collection systems, reservoirs and surrounding water bodies. Not only infrastructures of urban...

• High Efficiency Dual-Active-Bridge Converter with Triple-Phase-Shift Control for Battery Charger of Electric Vehicles

  Publication

  • S. Kuo
  • H. Chiu
  • C. Chiang
  • T. Huang
  • Y. Chang
  • S. Bachman
  • S. Piasecki
  • M. Jasiński
  • M. Turzyński

  - ENERGIES - Year 2024

  An optimal modulation scheme with triple-phase-shift (TPS) control could increase the efficiency in the entire load range for a dual-active-bridge (DAB) converter under wide output voltage range conditions. Therefore, this study proposes a convergent approach to TPS mode selection, coupled with an optimal modulation scheme, ensuring the circuit’s efficiency over the entire range in the realm of a high-power and high-efficiency...

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• Waldemar Kamrat prof. dr hab. inż.

  People

  Faculty of Electrical and Control Engineering, Department of Electrical Power Engineering

• IEEE TRANSACTIONS ON AUTOMATIC CONTROL

  Journals

  ISSN: 0018-9286 , eISSN: 1558-2523

• JOURNAL OF ECONOMIC DYNAMICS & CONTROL

  Journals

  ISSN: 0165-1889 , eISSN: 1879-1743

• Advances in Differential Equations and Control Processes

  Journals

  ISSN: 0974-3243

• ESAIM-CONTROL OPTIMISATION AND CALCULUS OF VARIATIONS

  Journals

  ISSN: 1292-8119 , eISSN: 1262-3377

• Journal of Control Automation and Electrical Systems

  Journals

  ISSN: 2195-3880 , eISSN: 2195-3899

• International Journal of Intelligent Control and Systems

  Journals

  ISSN: 0218-7965

• IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS

  Journals

  ISSN: 1350-2379

• LECTURE NOTES IN CONTROL AND INFORMATION SCIENCES

  Journals

  ISSN: 0170-8643

• IEEE Transactions on Control of Network Systems

  Journals

  ISSN: 2325-5870 , eISSN: 2372-2533

• International Review of Automatic Control (IREACO)

  Journals

  ISSN: 1974-6059

• Egyptian Journal of Biological Pest Control

  Journals

  ISSN: 1110-1768 , eISSN: 2536-9342

• Journal of Food Quality and Hazards Control

  Journals

  ISSN: 2345-685X

• International Journal of Greenhouse Gas Control

  Journals

  ISSN: 1750-5836 , eISSN: 1878-0148

• International Journal of Computational Intelligence in Control

  Journals

  ISSN: 0974-8571

• Journal of Institute of Control, Robotics and Systems

  Journals

  ISSN: 1976-5622

• IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY

  Journals

  ISSN: 1063-6536 , eISSN: 1558-0865

• INTERNATIONAL JOURNAL OF CONTROL AUTOMATION AND SYSTEMS

  Journals

  ISSN: 1598-6446 , eISSN: 2005-4092

• Radio Electronics Computer Science Control

  Journals

  ISSN: 1607-3274 , eISSN: 2313-688X

• International Journal of Computers Communications & Control

  Journals

  ISSN: 1841-9836 , eISSN: 1841-9844

• Protection and Control of Modern Power Systems

  Journals

  ISSN: 2367-2617

• International Journal of Systems, Control and Communications

  Journals

  ISSN: 1755-9340

• IMA JOURNAL OF MATHEMATICAL CONTROL AND INFORMATION

  Journals

  ISSN: 0265-0754 , eISSN: 1471-6887

• Kongzhi yu Juece/Control and Decision

  Journals

  ISSN: 1001-0920

• Journal of Mining and Strata Control Engineering

  Journals

  ISSN: 2096-7187

• Journal of Mathematical Control Science and Applications

  Journals

  ISSN: 0974-0570

• JOURNAL OF THE AMERICAN MOSQUITO CONTROL ASSOCIATION

  Journals

  ISSN: 8756-971X , eISSN: 1943-6270

• Chinese Journal of Disease Control and Prevention

  Journals

  ISSN: 1674-3679