Year 2013

• Parallel frequency tracking with built-in performance evaluation

  Publication

  • M. Meller
  • M. Niedźwiecki

  - DIGITAL SIGNAL PROCESSING - Year 2013

  The problem of estimation of instantaneous frequency of a nonstationary complex sinusoid (cisoid) buried in wideband noise is considered. The proposed approach employs a bank of adaptive notch filters, extended with a nontrivial performance assessment mechanism which automatically chooses the best performing filter in the bank. Additionally, a computationally attractive method of implementing the bank is proposed. The new structure...

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• Parameter and delay estimation of linear continuous-time systems

  Publication

  • J. Kozłowski
  • Z. Kowalczuk

  - Year 2013

  In this paper the problem of on-line identification of non-stationary delay systems is considered. Dynamics of supervised industrial processes is described by ordinary differential equations. Discrete-time mechanization of their continuous-time representations is based on dedicated finite-horizon integrating filters. Least-squares and instrumental variable procedures implemented in recursive forms are applied for simultaneous identification...

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• Parameter selection of an adaptive PI state observer for an induction motor

  Publication

  • T. Białoń
  • A. Lewicki
  • M. Pasko
  • R. Niestrój

  - Bulletin of the Polish Academy of Sciences-Technical Sciences - Year 2013

  The paper discusses problems connected with the parameters selection of the proportional-integral observer, designed for recon- struction of magnetic fluxes and angular speed of an induction motor. The selection is performed in several stages that are focused on different criteria. The first stage consists in selecting observer’s gains and provides desired dynamical properties, taking into consideration immunity to disturbances and...

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Year 2008

• Parallel immune system for graph coloring

  Publication

  • J. Dąbrowski

  - Year 2008

  This paper presents a parallel artificial immune system designed forgraph coloring. The algorithm is based on the clonal selection principle. Each processor operates on its own pool of antibodies and amigration mechanism is used to allow processors to exchange information. Experimental results show that migration improves the performance of the algorithm. The experiments were performed using a high performance cluster on a set...

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• Parametric impulsive noise detector for corrupted audio signals based on hidden Markow model

  Publication

  • K. Cisowski

  - Year 2008

  The paper addresses the problem of impulsive noise detection for audio signals. A structure of threshold parameter detectors using modelingof signals was introduced. the algorithm of the noise detection, based on discrete-time hidden Markow model (HMM)of whitened audio signal is elaborated

Year 2023

• Parallel implementation of a Sailing Assistance Application in a Cloud Environment

  Publication

  • M. Życzkowski
  • R. Szłapczyński
  • P. Orzechowski
  • H. Krawczyk

  - IEEE Access - Year 2023

  Sailboat weather routing is a highly complex problem in terms of both the computational time and memory. The reason for this is a large search resulting in a multitude of possible routes and a variety of user preferences. Analysing all possible routes is only feasible for small sailing regions, low-resolution maps, or sailboat movements on a grid. Therefore, various heuristic approaches are often applied, which can find solutions...

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Year 2016

• Parallel implementation of background subtraction algorithms for real-time video processing on a supercomputer platform

  Publication

  • G. Szwoch
  • D. Ellwart
  • A. Czyżewski

  - Journal of Real-Time Image Processing - Year 2016

  Results of evaluation of the background subtraction algorithms implemented on a supercomputer platform in a parallel manner are presented in the paper. The aim of the work is to chose an algorithm, a number of threads and a task scheduling method, that together provide satisfactory accuracy and efficiency of a real-time processing of high resolution camera images, maintaining the cost of resources usage at a reasonable level. Two...

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• Parallel implementation of the DGF-FDTD method on GPU Using the CUDA technology

  Publication

  • T. Stefański
  • T. Dziubak
  • S. Orłowski

  - Year 2016

  The discrete Green's function (DGF) formulation of the finite-difference time-domain method (FDTD) is accelerated on a graphics processing unit (GPU) by means of the Compute Unified Device Architecture (CUDA) technology. In the developed implementation of the DGF-FDTD method, a new analytic expression for dyadic DGF derived based on scalar DGF is employed in computations. The DGF-FDTD method on GPU returns solutions that are compatible...

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• Parametric analysis of Istanbul's Ring Road viaduct for three levels of seismic load

  Publication

  • K. Grębowski
  • M. Hirsz
  • K. Wilde
  • A. Nadlolny

  - Year 2016

  The paper presents a numerical analysis of the Istanbul's ring road viaduct that is currently under construction within the Northern Marmara Highway project. The structure, due to its location on seismic prone areas is exposed to seismic loads of different magnitude and different return periods. The study is fo-cused on concrete bridge supports that are design to work in nonlinear range. The study, conducted in SOFISTIK environment,...

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• Parametric and Non Parametric Methods for Efficiency Assessment of State Higher Vocational Schools in 2009-2011

  Publication

  • L. Rządziński
  • A. Sworowska
  • A. Sworowska-Baranowska

  - Entrepreneurial Business and Economics Review - Year 2016

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Year 2014

• Parallel Implementation of the Discrete Green's Function Formulation of the FDTD Method on a Multicore Central Processing Unit

  Publication

  • T. Stefański
  • S. Orłowski
  • B. Reichel

  - RADIOENGINEERING - Year 2014

  Parallel implementation of the discrete Green's function formulation of the finite-difference time-domain (DGF-FDTD) method was developed on a multicore central processing unit. DGF-FDTD avoids computations of the electromagnetic field in free-space cells and does not require domain termination by absorbing boundary conditions. Computed DGF-FDTD solutions are compatible with the FDTD grid enabling the perfect hybridization of FDTD...

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• Parallel multithread computing for spectroscopic analysis in optical coherence tomography

  Publication

  • M. Trojanowski
  • M. Kraszewski
  • M. Strąkowski
  • J. Pluciński

  - Year 2014

  Spectroscopic Optical Coherence Tomography (SOCT) is an extension of Optical Coherence Tomography (OCT). It allows gathering spectroscopic information from individual scattering points inside the sample. It is based on time-frequency analysis of interferometric signals. Such analysis requires calculating hundreds of Fourier transforms while performing a single A-scan. Additionally, further processing of acquired spectroscopic information...

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• Parameters’ Identification of Perzyna and Chaboche Viscoplastic Models for Aluminum Alloy at Temperature of 120◦C

  Publication

  • P. Kłosowski
  • A. Pestka

  - Engineering Transactions - Year 2014

  The main purpose of this paper is the parameters identification of the Perzyna and the Chaboche models for the aluminum alloy at elevated temperature. The additional purpose is comparison of the results for these viscoplastic models. The results have been verified by the numerical simulation of the laboratory tests. The material parameters have been calculated on the basis of the uniaxial tension test. The determination of the...

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• Parametric FE studies on a coupled energetic-statistical size effect in plain concrete beams under bending

  Publication

  • E. Korol
  • J. Tejchman

  - Year 2014

  W artykule omówiono wyniki połączonego deterministyczno-statystycznego efektu skali w betonowych belkach podczas zginania. Obliczenia wykonano stosując MES w zakresie sprężysto-plastyczności z nielokalnym osłabieniem. Obliczenia wykonano dla różnych długości korelacji i współczynnika zmienności.

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• Parametric method for evaluating optimal ship deadweight

  Publication

  • J. Michalski

  - Polish Maritime Research - Year 2014

  The paper presents a method of choosing the optimal value of the cargo ships deadweight. The method may be useful at the stage of establishing the main owners requirements concerning the ship design parameters as well as for choosing a proper ship for a given transportation task. The deadweight is determined on the basis of a selected economic measure of the transport effectiveness of ship – the Required Freight Rate (RFR). The...

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Year 2019

• Parallel in vitro and in silico investigations into anti-inflammatory effects of non-prenylated stilbenoids

  Publication

  • V. Leláková
  • K. Šmejkal
  • K. Jakubczyk
  • O. Veselý
  • P. Landa
  • J. Václavík
  • P. Bobáľ
  • H. Pížová
  • V. Temml
  • T. Steinacher... and 4 others

  - Food Chemistry - Year 2019

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• Parametric design in architectural education

  Publication

  • J. Cudzik
  • K. Radziszewski

  - World Transactions on Engineering and Technology Education - Year 2019

  Educators dealing with architectural education must anticipate the changes in the discipline and act to prepare students to face the challenges of the future. Therefore, it is necessary to provide them with state-of-the-art knowledge and relevant skills. To achieve that for new design techniques requires education. One new technique is parametric design, which has become one of the commonly used tools in architectural design practice....

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• Parametric method applicable in calculating breakout force and time for lifting axisymmetric objects from seabed.

  Publication

  • J. Michalski

  - Polish Maritime Research - Year 2019

  The issue of calculating parameters for lifting objects of axisymmetric shapes from the seabed is studied. The article presents the results of numerical simulation examination of the equation formulated by Foda for the force needed to extricate the object from the seabed depending on soil and water parameters, extrication speed, and object diameter. The simulations were performed within the range of parameters characteristic for...

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Year 2010

• Parallel processing of multimedia streams

  Publication

  • H. Krawczyk
  • K. Bańczyk
  • J. Proficz

  - Computer Applications in Electrical Engineering - Year 2010

  Rozdział przedstawia platformę KASKADA służącą do przetwarzania strumieni multimedialnych. Został opisany jej projekt: diagramy UML klas i sekwencji obrazujące mechanizmy przetwarzania strumieni, oraz szczegóły komunikacji. Zaprezentowano, również, specjalistyczny framework wspomagający tworzenie i wykonywanie algorytmów, jak również definiowanie scenariuszy usług, wraz z oceną ich użyteczności.

• Parallel processing of multimedia streams

  Publication

  • H. Krawczyk
  • J. Proficz
  • K. Bańczyk

  - Year 2010

  W artykule zaprezentowana jest nowa biblioteka wspierającą tworzenie zadań obliczeniowych, część platformy KASKADA.Przedstawiony został projekt biblioteki, uwzględniający diagram głównych klas oraz diagram sekwencji. Drugi z diagramów ukazuje współpracę głównych klas w procesie przetwarzania strumieni multimedialnych. W dalszej częsci omówione zostały szczegły mechanizmu komunikacji międzyzadawniowej oraz przedstawiony został graf...

• Parallelization Method for a Continuous Property

  Publication

  • P. Pilarczyk

  - FOUNDATIONS OF COMPUTATIONAL MATHEMATICS - Year 2010

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• Parameterized diagnostic module implemented in FPGA structures

  Publication

  • A. Zagozdzinska
  • K. Pozniak
  • R. Romaniuk
  • R. S. Romaniuk

  - Year 2010

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Year 2006

• Parallel processing subsystems with redundancy in a distributed environment

  Publication

  • A. Kosowski
  • M. Małafiejski
  • P. Żyliński

  - Year 2006

  W pracy rozważano problem podziału systemu rozproszonego na spójne podsystemy złożone z przynajmniej trzech jednostek, pozwalające na detekcję i skorygowanie pojedynczych błędów. Wykazano, że problem maksymalizacji liczby takich jednostek jest NP-trudny nawet dla dwuspójnych kubicznych topologii sieci. Podano też nowe algorytmy przybliżone.

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• Parallel query processing and edge ranking of graphs

  Publication

  • D. Dereniowski
  • M. Kubale

  - Year 2006

  Artykuł poświęcony jest problemowi szukania drzewa spinającego o minimalnym uporządkowanym indeksie chromatycznym. Jednym z zastosowań jest poszukiwanie optymalnych harmonogramów w równoległym przetwarzaniu zapytań w relacyjnych bazach danych. Podajemy nowe oszacowanie funkcji dobroci przybliżonego algorytmu autorstwa Makino, Uno i Ibaraki wraz z rezultatami testów komputerowych przeprowadzonych dla grafów losowych.

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• Parallel scheduling by graph ranking

  Publication

  • D. Dereniowski

  - Year 2006

  Nr dokum.: 73017Praca dotyczy jednego z nieklasycznych modeli kolorowania grafów - uporządkowanego kolorowania. Celem było uzyskanie wyników, które mogo być wykorzystane w praktycznych zastosowaniach tego modelu, do których należą: równoległe przetwarzanie zapytań w relacyjnych bazach danych, równoległa faktoryzacja macierzy metodą Choleskiego, równoległa asemblacja produktu z jego części składowych. W pracy wskazano uogólnienia...

• Parallel tabu search for graph coloring problem

  Publication

  • J. Dąbrowski
  • M. Kubale

  - Year 2006

  Tabu search is a simple, yet powerful meta-heuristic based on local search that has been often used to solve combinatorial optimization problems like the graph coloring problem. This paper presents current taxonomy of patallel tabu search algorithms and compares three parallelization techniques applied to Tabucol, a sequential TS algorithm for graph coloring. The experimental results are based on graphs available from the DIMACS...

• Parallelisation of genetic algorithms for solving university timetabling problems

  Publication

  • H. Krawczyk
  • K. Bańczyk
  • T. M. Boiński

  - Year 2006

  Algorytmy genetyczne stanowią ważną metodę rozwiązywania problemów optymalizacyjnych. W artykule skupiono się na projekcie równoległego algorytmu genetycznego pozwalającego uzyskiwać uniwersyteckie rozkłady zajęć, spełniające zarówno twarde jak i miękkie ograniczenia. Czytelnika wprowadzono w niektóre znane sposoby zrównoleglenia, przedstawiono również podejście autorów, ykorzystujące MPI. Przyjęto strukturę zarządzania opartą...

Year 2018

• Parallel Programming for Modern High Performance Computing Systems

  Publication

  • P. Czarnul

  - Year 2018

  In view of the growing presence and popularity of multicore and manycore processors, accelerators, and coprocessors, as well as clusters using such computing devices, the development of efficient parallel applications has become a key challenge to be able to exploit the performance of such systems. This book covers the scope of parallel programming for modern high performance computing systems. It first discusses selected and...

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• Parallelization of large vector similarity computations in a hybrid CPU+GPU environment

  Publication

  • P. Czarnul

  - JOURNAL OF SUPERCOMPUTING - Year 2018

  The paper presents design, implementation and tuning of a hybrid parallel OpenMP+CUDA code for computation of similarity between pairs of a large number of multidimensional vectors. The problem has a wide range of applications, and consequently its optimization is of high importance, especially on currently widespread hybrid CPU+GPU systems targeted in the paper. The following are presented and tested for computation of all vector...

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• Parametric and nonparametric description of the surface topography in the dry and MQCL cutting conditions

  Publication

  • G. Krolczyk
  • R. Maruda
  • J. Krolczyk
  • P. Nieslony
  • S. Wojciechowski
  • S. Legutko
  • S. Wojciechowski

  - Measurement - Year 2018

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Year 2004

• Parallel simulations of electrophysiological phenomena in myocardium on large 32 and 64-bit Linux clusters.

  Publication

  • P. Czarnul
  • K. Grzęda

  - Year 2004

  W pracy podjęto badania i przeprowadzono symulacje zjawisk elektrofizjologicznych w mięśniu sercowym z wykorzystaniem wytworzonego w tym celu oprogramowania równoległego opartego na MPI. Zaimplementowano i zbadano ulepszenia kodu prowadzące do uzyskania dobrej skalowalności oraz przeprowadzono testy wydajności na najnowszych 32 i 64-bitowych klastrach linuksowych. Praca stanowi próbę równoległej implementacji znanego podejścia...

Year 2011

• Parallelization of Compute Intensive Applications into Workflows based on Services in BeesyCluster

  Publication

  • P. Czarnul

  - Year 2011

  The paper presents an approach for modeling, optimization and execution of workflow applications based on services that incorporates both service selection and partitioning of input data for parallel processing by parallel workflow paths. A compute-intensive workflow application for parallel integration is presented. An impact of the input data partitioning on the scalability is presented. The paper shows a comparison of the theoretical...

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• Parallelization of video stream algorithms in kaskada platform

  Publication

  • A. Brzeski

  - Year 2011

  The purpose of this work is to present different techniques of video stream algorithms parallelization provided by the Kaskada platform - a novel system working in a supercomputer environment designated for multimedia streams processing. Considered parallelization methods include frame-level concurrency, multithreading and pipeline processing. Execution performance was measured on four time-consuming image recognition algorithms,...

• Parameters optimization in medicine supporting image recognition algorithms

  Publication

  • A. Brzeski

  - Year 2011

  In this paper, a procedure of automatic set up of image recognition algorithms' parameters is proposed, for the purpose of reducing the time needed for algorithms' development. The procedure is presented on two medicine supporting algorithms, performing bleeding detection in endoscopic images. Since the algorithms contain multiple parameters which must be specified, empirical testing is usually required to optimise the algorithm's...

Year 2017

• Parallelization of Selected Algorithms on Multi-core CPUs, a Cluster and in a Hybrid CPU+Xeon Phi Environment

  Publication

  • A. Krzywaniak
  • P. Czarnul

  - Advances in Intelligent Systems and Computing - Year 2017

  In the paper we present parallel implementations as well as execution times and speed-ups of three different algorithms run in various environments such as on a workstation with multi-core CPUs and a cluster. The parallel codes, implementing the master-slave model in C+MPI, differ in computation to communication ratios. The considered problems include: a genetic algorithm with various ratios of master processing time to communication...

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• Parameter estimation of a discrete model of a reinforced concrete slab

  Publication

  • M. Abramowicz
  • S. Berczyński
  • T. Wróblewski

  - Journal of Theoretical and Applied Mechanics - Year 2017

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Year 2015

• Paramagnetism of cobalt-doped ZnO nanoparticles obtained by microwave solvothermal synthesis

  Publication

  • J. Wojnarowicz
  • S. Kusnieruk
  • T. Chudoba
  • S. Gierlotka
  • W. Lojkowski
  • W. Knoff
  • M. Lukasiewicz
  • B. Witkowski
  • A. Wolska
  • M. Klepka... and 2 others

  - Beilstein Journal of Nanotechnology - Year 2015

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• Parameter and delay estimation of linear continuous-time systems

  Publication

  • J. Kozłowski
  • Z. Kowalczuk

  - International Journal of Applied Mathematics and Computer Science - Year 2015

  In this paper the problem of on-line identification of non-stationary delay systems is considered. Dynamics of supervised industrial processes is usually described by ordinary differential equations. Discrete-time mechanization of their continuous-time representations is based on dedicated finite-horizon integrating filters. Least-squares and instrumental variable procedures implemented in recursive forms are applied for simultaneous...

  Full text available to download

• Parametric analysis of Istanbul's Ring Road viaduct for three levels of seismic load

  Publication

  • K. Grębowski
  • M. Hirsz
  • A. Nadolny
  • K. Wilde

  - Year 2015

  The paper presents a parametric analysis of the Istanbul's ring road viaduct that is currently under construction within the Northern Marmara Highway project. The structure, due to its location on seismic prone areas is exposed to seismic loads of different strengths and different return periods. The study is focused on concrete bridge supports that are design to work in nonlinear range. The parametric study, conducted in MATLAB...

Year 2005

• Parameter of nonlinearity B/A of three-component systems with separate volumes of liquid, its vapor and a neutral gas

  Publication

  • A. Perelomova

  - Year 2005

  Otrzymane zostało wyrażenie dla zaburzenia entropii substancji o trzech komponentach jako funkcja zaburzeń jej ciśnienia i gęstości. Na podstawie wzoru prędkość i parametru nieliniowosci fali akustycznej zostały wyliczone jako funkcje i ciśnienia i koncentracji pary i powietrza. Rezultaty są przedstawione w postaci wykresów.

• Parametric imaging in dynamic glucose metabolism studies in brain

  Publication

  • J. Rumiński
  • B. Karczewski

  - Year 2005

  Artykuł analizuje badania dynamiczne 18FDG-PET, które służą do estymacji metabolizmu glukozy w mózgu. Zbadano w nim wpływ zakłóceń na wyznaczanie interesującego nas parametru LCMRGlc.

• Parametric method of preliminary prediction of the ship building costs

  Publication

  • J. Michalski

  - Year 2005

  Przedstawiono założenia koncepcyjne i teoretyczne metody, opracowano wzory aproksymacyjne służące odpowiednio do wyznaczania jednostkowych kosztów budowy: kadłuba, wyposażenia okrętowego oraz siłowni z układem napędowym. Utylitarny charakter metody zilustrowano przykadami prognoz kosztów budowy czterech różnych typów statków zaprojektowanych w ramach projektu EUREKA BALTECOLOGICALSHIP E!3065.

Year 2024

• Parameters identification of coreless axial fluxpermanent magnet generator

  Publication

  • N. Radwan-Pragłowska
  • T. Węgiel
  • D. Borkowski
  • T. Wegiel

  - Archives of Electrical Engineering - Year 2024

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Year 2020

• Parameters Identification of the Flexible Fin Kinematics Model Using Vision and Genetic Algorithms

  Publication

  • K. Jurczyk
  • P. Piskur
  • P. Szymak
  • P. Piskur

  - Polish Maritime Research - Year 2020

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• PARAMETERS OF THE ELECTROPHORETIC DEPOSITION PROCESS AND ITS INFLUENCE ON THE MORPHOLOGY OF HYDROXYAPATITE COATINGS. REVIEW

  Publication

  • A. Laska
  • M. Bartmański

  - Inżynieria Materiałowa - Year 2020

  Metallic materials intended for bone implants should exhibit not only appropriate mechanical properties, but also high biocompatibility. The surface treatment modifications, for example acidic treatment, laser treatment, ion implantation and deposition of highly biocompatible coatings, are practiced. One of the most popular methods of surface modification is to deposit hydroxyapatite (HAp) coatings. HAp naturally occurs in human...

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• Parametric method applicable in assessing breakout force and time for lifting slender bodies from seabed

  Publication

  • J. Michalski

  - Polish Maritime Research - Year 2020

  The article presents a parametric method applicable in assessing the suction force of a slender body to the seabed, and prognosing the body extrication time. Along with the body weight in water, the information on the suction force is essential for assessing the force needed to lift the object from the seabed. Based on the Foda theory and the resulting integral equation, which relates the maximum suction force with basic parameters...

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Year 2003

• Parameters of entry and going out of saw blade teeth during cutting with circular saw

  Publication

  • R. Wasielewski

  - Annals of WULS, Forestry and Wood Technology - Year 2003

  W pracy przedstawiono analizę parametrów wejścia i wyjścia ostrzy przy przecinaniu piłami tarczowymi. Określone zostały parametry kątów natarcia i grubości warstwy skrawanej na wejściu i wyjściu ostrzy z materiału w zależności od kinematyki układu.

Year 2002

• Parameters of evolutionary algorithm in problem of collision avoidance at sea

  Publication

  • R. Smierzchalski
  • A. Łebkowski

  - Year 2002

  ...

Year 2021

• PARAMETRIC ANALYSIS OF THE EFFICIENCY OF THE COMBINED GAS-STEAM TURBINE UNIT OF A HYBRID CYCLE FOR THE FPSO VESSEL

  Publication

  • S. Serbin
  • N. Washchilenko
  • M. Dzida
  • J. Kowalski

  - Polish Maritime Research - Year 2021

  A thermal diagram of the combined gas‒steam turbine unit of a hybrid cycle, which is an energy complex consisting of a base gas turbine engine with a steam turbine heat recovery circuit and a steam-injected gas turbine operating with overexpansion, is proposed. A mathematical model of a power plant has been developed, taking into consideration the features of thermodynamic processes of simple, binary, and steam-injected...

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Year 2009

• Parametric method for determination of motion characteristics of underwater vehicles, applicable in preliminary designing.

  Publication

  • J. Michalski

  - Polish Maritime Research - Year 2009

  artykuł zawiera opis metody wstępnego projektowania autonomicznych pojazdów podwodnych (auv), przydatnej szczególnie w przypadku, gdy w założeniach projektowych stawiane są wymogi dotyczące parametrów kinematyczno-dynamicznych ruchu pojazdu. koncepcja metody zasadza się na równaniach dynamiki opisujących ruch płaski pojazdu w kierunku poziomym i pionowym, wywołanych odpowiednio napędem śrubowym lub balastem wodnym. równania ruchu...

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