Wyniki wyszukiwania dla: SOFTWARE ENGEENERING

• Experimental and Computational Analysis of the Ship Propeller in Open Water Conditions for Inclined Flow

  Publikacja

  • J. Felicjancik
  • P. Król
  • B. Tomasz

  - Rok 2016

  The paper presents the results of computational analyses simulating the open water tests of ship propeller in inclined flow. The results of computations are compared with the results of corresponding experimental analyses carried out in the towing tank of Ship Design and Research Centre (CTO S.A.). The object of the research was the model propeller identified as CP469. The aim of the study was to validate the results of numerical...

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• Simulation Model for Application of the SDN Concept in IMS/NGN Network Transport Stratum

  Publikacja

  • S. Kaczmarek
  • M. Sac
  • J. Adrych

  - Rok 2024

  The paper presents a simulation model allowing examination of cooperation between two currently used telecommunication networks concepts: IP Multimedia Subsystem/Next Generation Network (IMS/NGN) and Software-Defined Networking (SDN). Application of the SDN architecture elements in IMS/NGN networks will enable unified control and management of transport resources for various transport technologies and equipment manufacturers. However,...

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• Energy Efficiency Study of Audio-video Content Consumption on Selected Android Mobile Terminals

  Publikacja

  • P. Falkowski-Gilski
  • M. Pańkowski

  - Rok 2021

  Mobile devices are widely used by billions of users worldwide. Thanks to their main advantage, which is portability, they should be fully operational as long as possible, without the need to recharge or connect them to external power sources. This paper describes a study, carried out on four different mobile devices, with different hardware and software parameters, running the Android operating system. The research campaign involved...

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• Implementation of high-precision computation capabilities into the open-source dynamic simulation framework YADE

  Publikacja

  • J. Kozicki
  • A. Gladky
  • K. Thoeni

  - COMPUTER PHYSICS COMMUNICATIONS - Rok 2022

  This paper deals with the implementation of arbitrary precision calculations into the open-source discrete element framework YADE published under the GPL-2+ free software license. This new capability paves the way for the simulation framework to be used in many new fields such as quantum mechanics. The implementation details and associated gains in the accuracy of the results are discussed. Besides the "standard" double (64 bits)...

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• Selected Aspect of IT Tools Application in Process Improvement in Industrial Laundry Services

  Publikacja

  • P. Grudowski
  • M. Muchlado

  - Advances in Intelligent Systems and Computing - Rok 2019

  The laundry services sector in Poland is growing dynamically and currently has around 13,000 enterprises, mainly micro, small and medium size. The increasing competitiveness of this industry, causes more emphasis on solutions that can in-crease the efficiency of laundry processes and thereby strengthen the market position. One of the methods that can be used for this purpose is Lean Six Sigma, aided by specialized computer software....

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• Analysis of luminance distribution uniformity in CAVE-type virtual reality systems

  Publikacja

  • A. Mazikowski

  - OPTO-ELECTRONICS REVIEW - Rok 2018

  In recent years, many scientific and industrial centers in the world developed a virtual reality systems or laboratories. The effect of user “immersion” into virtual reality in such systems is largely dependent of optical properties of the system. In this paper, problems of luminance distribution uniformity in CAVE-type virtual reality systems are analyzed. For better characterization of CAVE luminance nonuniformity corner and...

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• Computational modeling of molecularly imprinted polymers as a green approach to the development of novel analytical sorbents

  Publikacja

  • M. Marć
  • T. Kupka
  • P. P. Wieczorek
  • J. Namieśnik

  - TRAC-TRENDS IN ANALYTICAL CHEMISTRY - Rok 2018

  The development of novel molecularly imprinted polymers (MIP) sorbents for specific chemical compounds require a lot of tedious and time-consuming laboratory work. Significant quantities of solvents and reagents are consumed in the course of the verification of appropriate configurations of polymerization reagents. Implementation of molecular modeling in the MIP sorbent development process appears to provide a solution to this...

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• Recurrence scheme for FDTD-compatible discrete Green's function derived based on properties of Gauss hypergeometric function

  Publikacja

  • J. Gulgowski
  • T. Stefański

  - JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS - Rok 2019

  In this paper, the formulation of one-dimensional FDTD (Finite-difference time-domain)-compatible discrete Green's function (DGF) is derived based on the Gauss hypergeometric function (GHF). The properties of GHF make it possible to derive the recurrence scheme only in the time domain for the DGF generation. Furthermore, this recurrence scheme is valid for any stable time-step size and can be implemented using standard numerical...

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• Stradar - Multimedia Dispatcher and Teleinformation System for the Border Guard

  Publikacja

  • M. Blok
  • B. Czaplewski
  • S. Kaczmarek
  • J. A. Litka
  • M. Narloch
  • M. Sac

  - Zeszyty Naukowe Akademii Marynarki Wojennej - Rok 2019

  Security of national borders requires utilization of multimedia surveillance systems automatically gathering, processing and sharing various data. The paper presents such a system developed for the Maritime Division of the Polish Border Guard within the STRADAR project. The system, apart from providing communication means, gathers data, such as map data from AIS, GPS and radar receivers, videos and photos from camera or audio from...

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• Wind Turbines Modeling as the Tool for Developing Algorithms of Processing their Video Recordings

  Publikacja

  • P. Sokołowski
  • S. Cygert
  • M. Szczodrak

  - Rok 2019

  In the real world, many factors exist disturbing observation of the examined phenomena and causing various noises and distortions in recorded signals. It very often makes it difficult or even impossible to optimize various signal processing algorithms, through finding appropriate parameters. In this paper, we show an application, that retrieves wind turbine rotor speed from recorded video. Next, we describe the process of reduction...

• Design of control algorithms for mobile robots in an environment with static and dynamic obstacles

  Publikacja

  • R. Piotrowski
  • B. Maciąg
  • W. Makohoń
  • K. Milewski

  - Journal of Automation, Mobile Robotics and Intelligent Systems - JAMRIS - Rok 2019

  This article proposes the construction of autonomous mobile robots and designing of obstacle avoidance algorithms for them. Nowadays, mobile robots are gaining more and more popularity on the customer as well as industrial market, for example as automatic vacuum cleaners or lawnmowers. Obstacle avoidance algorithms play an important role in performance of this types of robots. The proposed algorithms were designed for builds with...

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• Feasibility Study GaN Transistors Application in the Novel Split-Coils Inductive Power Transfer System with T-Type Inverter

  Publikacja

  • V. Shevchenko
  • B. Pakhaliuk
  • O. Husev
  • O. Veligorskyi
  • D. Stepins
  • R. Strzelecki

  - ENERGIES - Rok 2020

  A promising solution for inductive power transfer and wireless charging is presented on the basis of a single-phase three-level T-type Neutral Point Clamped GaN-based inverter with two coupled transmitting coils. The article focuses on the feasibility study of GaN transistor application in the wireless power transfer system based on the T-type inverter on the primary side. An analysis of power losses in the main components of the...

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• Fundamental properties of solutions to fractional-order Maxwell's equations

  Publikacja

  • T. Stefański
  • J. Gulgowski

  - JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS - Rok 2020

  In this paper, fundamental properties of solutions to fractional-order (FO) Maxwell's equations are analysed. As a starting point, FO Maxwell's equations are introduced in both time and frequency domains. Then, we introduce and prove the fundamental properties of electromagnetic field in FO electromagnetics, i.e. energy conservation, uniqueness of solutions, and reciprocity. Furthermore, the algorithm of the plane wave simulation...

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• REALIZACJA INTERFEJSU RADIOWEGO OFDM W TECHNOLOGII RADIA PROGRAMOWALNEGO DO ZASTOSOWAŃ WOJSKOWYCH

  Publikacja

  • A. Marczak

  - Rok 2016

  Metoda wielodostępu OFDM, jest stosowana obecnie w wielu standardach łączności radiowej, w tym w standardzie IEEE802.11p, który jest przewidziany do realizacji transmisji danych pomiędzy pojazdami, oraz pomiędzy pojazdami i infrastrukturą znajdującą się w pobliżu drogi. Technologia radia programowalnego (ang. Software Defined Radio) umożliwia realizacje urządzeń pracujących z tą metodą wielodostępu. W referacie zaprezentowano oprogramowanie...

• Digital microcontroller for sonar waveform generator

  Publikacja

  • A. Schmidt
  • J. Schmidt

  - HYDROACOUSTICS - Rok 2016

  Generating sounding signals is essential for the operation of active sonar. The system should be highly reliable. This can be achieved through architecture, communication between the devices, and a well-designed and self–testing software. The system presented in the article is responsible for the generation of hydroacoustic sounding signals, and ensures proper interaction between power amplifiers and power supplies. Thanks to its...

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• Wind Turbines Modeling as the Tool for Developing Algorithms of Processing their Video Recordings

  Publikacja

  • P. Sokolowski
  • S. Cygert
  • M. Szczodrak

  - Rok 2019

  In the real world, many factors exist disturbing observation of the examined phenomena and causing various noises and distortions in recorded signals. It very often makes it difficult or even impossible to optimize various signal processing algorithms, through finding appropriate parameters. In this paper, we show an application, that retrieves wind turbine rotor speed from recorded video. Next, we describe the process of reduction...

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• The Accuracy of a Marine Satellite Compass under Terrestrial Urban Conditions

  Publikacja

  • P. Dąbrowski
  • C. Specht
  • A. Felski
  • W. Koc
  • A. Wilk
  • K. Czaplewski
  • K. Karwowski
  • K. Jaskólski
  • M. Specht
  • P. Chrostowski
  • J. Szmagliński

  - Journal of Marine Science and Engineering - Rok 2019

  When used at sea, satellite compasses are capable of determining the course of a sailing vessel with high accuracy. It is dicult to verify the accuracy declared by the device manufacturer under such conditions, as it is dicult to define a reliable reference. This study analyses the accuracy of the satellite compass in an urban setting, with the satellite signal being obscured to various extents. It is an important point in the...

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• Implementacja w technologii radia programowalnego transceivera opartego na technice OFDM pracującego w trybie dupleksu czasowego

  Publikacja

  • J. Hajduczenia

  - Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne - Rok 2016

  Technika OFDM jest obecnie jedną z najbardziej popularnych metod realizacji szybkiej transmisji danych w warstwie fizycznej współczesnego systemu radiokomunikacyjnego. Choć jej wykorzystanie w technologii radia programowalnego w celu realizacji jednokierunkowej transmisji jest dość powszechne, to wciąż trudno znaleźć przykłady implementacji łączy dwukierunkowych czasu rzeczywistego, w szczególności tych opartych na trybie dupleksu...

• System Weryfikacji Autentyczności Podpisu Odręcznego

  Publikacja

  • M. Lech
  • P. Bratoszewski
  • A. Czyżewski

  - Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne - Rok 2016

  W referacie przedstawiono system statycznej i dynamicznej weryfikacji autentyczności podpisu odręcznego, składanego piórem biometrycznym, wyposażonym w 2 akcelerometry, 2 żyroskopy i 3 czujniki ścisku, na rezystancyjnej powierzchni dotykowej, łączącym się bezprzewodowo z urządzeniami komputerowymi. We wstępie przedstawiono architekturę sieciową wielomodalnego systemu biometrii. Przedstawiono warstwę sprzętową systemu weryfikacji...

• DiSTFAG method robust to gross errors in monitoring displacements and strains in unstable reference systems

  Publikacja

  • W. Kamiński

  - Geodesy and Cartography - Rok 2011

  The DiSTFA method (Displacements and Strains using Transformation and Free Adjustment) was presented in Kamiński (2009). The method has been developed for the determination of displacements and strains of engineering objects in unstable reference systems, as well as for examining the stability of reference points. The DiSTFAG (Gross errors) method presented in the paper is the extension of the DiSTFA method making it robust to...

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• Review of historical buildings' foundations

  Publikacja

  • J. Przewłócki
  • I. Dardzińska
  • J. Świniański

  - GEOTECHNIQUE - Rok 2005

  The paper presents in brief the history of foundation engineering with a particular regard to its development, applied techniques and materials. Different types of old foundations in relation to various soil conditions are considered. Basic methods of preservation of old foundations, with special emphasis given to their faults and advantages are discussed. Finally, some problems of the reuse of pre-existing foundations are raised....

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• Pierwszy w Polsce Międzynarodowy Zabytek Inżynierii Budowlanej - most lisewski przez Wisłę w Tczewie

  Publikacja

  • W. Affelt

  - Rok 2005

  W artykule przedstawiono rys historyczny powstania pierwszego stałego mostu drogowo-kolejowego przez Wisłę w Tczewie (1857) oraz jego kolejnych przebudów (1911, 1939, 1945-1972, 2002). Na podstawie przeprowadzonej zabytkoznawczej analizy wartościującej to dzieło pruskiej inżynierii uzasadniono fakt nadania mu w 2004 r. statusu ''International historic civil engineering landmark'' przez American Society of Civil Engineers.

• Błędy dotyczące kotwienia w budownictwie

  Publikacja

  • A. Ambroziak
  • M. T. Solarczyk

  - Materiały Budowlane - Rok 2017

  W artykule zwrócono uwagę na typowe błędy w projektowaniu oraz wykonawstwie systemów kotwienia w budownictwie. Omówiono normowe zalecenia dotyczące obliczeń nietypowych elementów. Przedstawiono kilka przykładów błędnego wykonania kotwienia z rzeczywistej realizacji. Skomentowano rodzaj błędów i ich przyczynę.

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• Polyurethanes modified with natural polymers for medical application. I. Polyurethanes/ Chitosan and polyurethane/collagen.

  Publikacja

  • J. Kucińska-Lipka
  • I. Carayon
  • H. Janik

  - Polimery - Rok 2013

  For over three decades polyurethanes (PUR or PU) have been reported for application in a variety of medical devices. These polymers consist of hard and soft segments, which allow for more subtle control of their structure and properties. By varying the composition of the different segments, properties of PURcan be tuned up for use in many areas of medicine. Recently there is a great interest in modification of biomedical PUR with...

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• Prediction of fracture toughness in fibre-reinforced concrete, mortar, and rocks using various Machine learning techniques

  Publikacja

  • A. Dehestani
  • F. Kazemi
  • R. Abdi
  • M. Nitka

  - ENGINEERING FRACTURE MECHANICS - Rok 2022

  Machine Learning (ML) method is widely used in engineering applications such as fracture mechanics. In this study, twenty different ML algorithms were employed and compared for the prediction of the fracture toughness and fracture load in modes I, II, and mixed-mode (I-II) of various materials, including fibre-reinforced concrete, cement mortar, sandstone, white travertine, marble, and granite. A set of 401 specimens of “Brazilian...

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• Manufacturing Data Analysis in Internet of Things/Internet of Data (IoT/IoD) Scenario

  Publikacja

  • E. Szczerbicki
  • S. I. Shafiq
  • C. Sanin

  - CYBERNETICS AND SYSTEMS - Rok 2018

  Computer integrated manufacturing (CIM) has enormous benefits as it increases the rate of production, reduces errors and production waste, and streamlines manufacturing sub-systems. However, there are some new challenges related to CIM operating in the Internet of Things/Internet of Data (IoT/IoD) scenarios associated with Industry 4.0 and cyber-physical systems. The main challenge is to deal with the massive volume of data flowing...

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• Exergy analysis of the Szewalski cycle with a waste heat recovery system

  Publikacja

  • T. Kowalczyk
  • P. Ziółkowski
  • J. Badur

  - Archives of Thermodynamics - Rok 2015

  The conversion of a waste heat energy to electricity is now becoming one of the key points to improve the energy efficiency in a process engineering. However, large losses of a low-temperature thermal energy are also present in power engineering. One of such sources of waste heat in power plants are exhaust gases at the outlet of boilers. Through usage of a waste heat regeneration system it is possible to attain a heat rate of approximately...

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• Expedited Simulation-Driven Multi-Objective Design Optimization of Quasi-Isotropic Dielectric Resonator Antenna

  Publikacja

  • A. Bekasiewicz
  • S. Kozieł
  • W. Zieniutycz
  • L. Leifsson

  - Rok 2016

  Majority of practical engineering design problems require simultaneous handling of several criteria. Although many of design tasks can be turned into single-objective problems using sufficient formulations, in some situations, acquiring comprehensive knowledge about possible trade-offs between conflicting objectives may be necessary. This calls for multi-objective optimization that aims at identifying a set of alternative, Pareto-optimal...

• Matrix Strengthening the Identification of Observations with Split Functional Models in the Squared Msplit(q) Estimation Process

  Publikacja

  • M. Zienkiewicz
  • P. S. Dąbrowski

  - MEASUREMENT - Rok 2023

  This article addresses the issue of raising the level of identification of observations with either single or more split functional models in the squared Msplit(q) estimation process. The theoretical part of the study presents the theoretical grounds for the classical method for estimating parameters in a split functional model and proposes a modification of the computational algorithm to increase the quality of the determinations...

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• Power electronic systems as a crucial part of Smart Grid infrastructure - a survey

  Publikacja

  • G. Benysek
  • M. P. Kaźmierkowski
  • J. Popczyk
  • R. Strzelecki

  - Bulletin of the Polish Academy of Sciences-Technical Sciences - Rok 2012

  This article gives a tutorial overview of the most important issues related to the use of power electronic systems in power engineering, with respect to the urgent need for modernization of existing grids in the direction of intelligent networks. The main problems and conditions bound up with the construction of Smart Grids and the location, as well as functioning in them of the most important power electronic systems are presented...

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• Cyfrowy akcelerator wybranych modułów standardu kompresji wideo H.264

  Publikacja

  • M. Kłosowski
  • B. Pankiewicz
  • M. Wójcikowski

  - Przegląd Elektrotechniczny - Rok 2014

  W artykule przedstawiono konfigurowalny cyfrowy akcelerator estymacji ruchu przeznaczony dla enkodera wideo standardu H.264. Akcelerator został zaimplementowany w technologii FPGA oraz w układzie ASIC w technologii UMC 90 nm. Obie implementacje zostały zweryfikowane, a szczegółowe wyniki pomiarów akceleratora ASIC zostały porównane z innymi dostępnymi w literaturze propozycjami. System został zoptymalizowany do współpracy z oprogramowaniem...

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• Techniczne aspekty implementacji nowoczesnej platformy e-learningowej

  Publikacja

  • P. Lubomski
  • I. Żuchowski

  - Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej - Rok 2014

  Zaprezentowano aspekty techniczne implementacji nowoczesnej platformy nauczania zdalnego. Omówiono obszary funkcjonalne takie jak: system zarządzania nauczaniem, serwis informacyjny, dodatkowe oprogramowanie dydaktyczne oraz kolekcja zasobów multimedialnych. Przybliżono zagadnienia związane z bezpieczeństwem takiej platformy. Na końcu przedstawiono parametry techniczne wdrożonej na Politechnice Gdańskiej platformy eNauczanie.

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• Multimedia in teaching economics and management in higher education.

  Publikacja

  • I. Garnik

  - Rok 2014

  Nowadays, the use of multimedia teaching materials at universities makes a standard practice. However their saturation is still quite low comparing to the expectations of students - the main consumers of the information contained therein. This article will present the results of research conducted among students of Management and Engineering Management carried at the Technical University of Gdańsk. Some students of Computer Science...

• Multi-headed chimera states in coupled pendula

  Publikacja

  • P. Jaros
  • Ł. Borkowski
  • B. Witkowski
  • K. Czołczyński
  • T. Kapitaniak

  - The European Physical Journal-Special Topics - Rok 2015

  We discuss the occurrence of the chimera states in the network of coupled, excited by the clock’s mechanisms pendula. We find the patterns of multi-headed chimera states in which pendula clustered in different heads behave differently (oscillate with different frequencies) and create different types of synchronous states (complete or phase synchronization). The mathematical model of the network shows that the observed chimera states...

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• Comparison of centralized and decentralized preemption in MPLS networks

  Publikacja

  • S. Kaczmarek
  • K. Nowak

  - Rok 2007

  Preemption is one of the crucial parts of the traffic engineering in MPLS networks. It enables allocation of high-priority paths even if the bandwidth on the preferred route is exhausted. This is achieved by removing previously allocated low-priority traffic, so as enough free bandwidth becomes available. The preemption can be performed either as a centralized or a decentralized process. In this article we discuss the differences...

• Relieving the Measuring System of the Trailer for Tyre/Road Rolling Resistance Measurements from the Inertia Force

  Publikacja

  • R. Woźniak
  • S. Taryma
  • G. Ronowski

  - Key Engineering Materials - Rok 2012

  In the article the principle of measuring of tyre/road rolling resistance tyres in road conditions applied in a special measuring trailer is presented. This trailer was built in Faculty of Mechanical Engineering at Gdansk University of Technology. The construction of two special devices used in this trailer was discussed. These devices eliminate the influence of some chosen confounding measurements factors such as: the inertia...

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• THERMOMECHANICAL PERFORMANCE OF FLEXIBLE POLYURETHANE FOAMS AS A FUNCTION OF THE ISOCYANATE INDEX

  Publikacja

  • A. Hejna
  • P. Kosmela
  • A. Olszewski
  • Ł. Zedler
  • K. Formela

  - Rok 2021

  Polyurethane foams are very versatile materials applied in different branches of industry. Their popularity is attributed, among others, to the flexibility in engineering their mechanical performance by the adjustment of their formulations. One of the most crucial factors is the isocyanate index, determining the ratio between the free hydroxyl and isocyanate groups present in the polyurethane system. By the change of this ratio,...

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• Establishing Relationships between Parameters of the controlled Compaction Soil by Using Various In-Situ Tests

  Publikacja

  • M. Wyroślak

  - Rok 2017

  The aim of research was evaluating reliable correlations between chosen soil parameters describing state of surface layers of soil. The paper presents site comparative tests based on the light falling weight deflectometer (LFWD), the static plate load tester (VSS), the dynamic probing light tester (DPL) and the bearing ratio tester (CBR in-situ) with relationships between soil state parameters. All featured in-situ...

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

  Publikacja

  • J. Michalski

  - Polish Maritime Research - Rok 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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• THE METHOD OF MEASURING THE MEMBRANE COVER GEOMETRY USING LASER SCANNING AND SYNCHRONOUS PHOTOGRAMMETRY

  Publikacja

  • A. Janowski
  • W. Kamiński
  • K. Makowska-Jarosik
  • J. Szulwic
  • K. Wilde

  - Rok 2015

  The authors present the experience and results of field studies carried out at the technical acceptance of Forest Opera (name in Polish: Opera Leśna) in Sopot (Poland). An unusual design of covering made in the form of “Sheerfill I” technical fabric membrane required spanned in the form of sails, required the use of terrestrial laser scanning. Such approach allowed for the fast and accurate record of the surface of individual panels...

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• Annual signals observed in regional GPS networks

  Publikacja

  • J. Bogusz
  • M. Figurski

  - Acta Geodynamica et Geomaterialia - Rok 2014

  Abstract: This paper describes analyses concerning annual signals in GPS-derived coordinates. The data was processed in the Military University of Technology Local Analysis Centre with Bernese 5.0 software. We used observations from 129 permanent GPS stations which belong to the Polish Active Geodetic Network (ASG-EUPOS), for the period of GPS weeks 1465-1729, corresponding to about 5 years. The annual signals have been estimated...

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• Wirówka geotechniczna - historia, modelowanie i współczynniki skali

  Publikacja

  • J. Konkol

  - Inżynieria Morska i Geotechnika - Rok 2014

  Rozwój modelowania zjawisk geotechnicznych w wirówce. Historia rozwoju urządzenia. Przyczyny wykorzystania wirówki geotechnicznej przez ośrodki naukowe i biura inżynieryjne. Obecny status urządzenia w edukacji i przemyśle. Podstawy teoretyczne badań modelowych w wirówce geotechnicznej. Lista wybranych zależności korelacyjnych. Przegląd i dyskusja wybranych współczynników skali.

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• Processing of point cloud data retrieved from terrestrial laser scanning for structural modeling by Finite Element Method

  Publikacja

  • P. Ziółkowski

  - Rok 2017

  Finite Element Method is one most popular contemporary method of strength analysis. The method is an advanced method for solving differential equations, based on discretization, which means that area is divided into finite elements. Each finite element has a solution of the equation approximated by specific functions and performing the actual calculations only for nodes of this division. Finite Element Method is widely used in...

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• Sea, River, Lake Ice Properties and Their Applications in Practices

  Publikacja

  • Z. Li
  • T. Kolerski
  • L. Zhou
  • X. Shi
  • Z. Zhang
  • F. Li

  - Water - Rok 2023

  This Special Issue aims to highlight research articles focusing on the geographical scale of glacier and lake ice variations, as well as the engineering scale of ice properties and their practical applications via laboratory tests and numerical modeling. Additionally, it includes research on ecosystems under lake ice. The main goal is successfully achieved through the joint efforts of authors, anonymous reviewers, and editorial...

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• Mathematical modelling and computer simulation of activated sludge systems.Second edition

  Publikacja

  • J. Mąkinia
  • E. Zaborowska

  - Rok 2020

  Mathematical Modelling and Computer Simulation of Activated Sludge Systems – Second Edition, provides, from the process engineering perspective, a comprehensive and up-to-date overview regarding various aspects of the mechanistic (“white box”) modelling and simulation of advanced activated sludge systems performing biological nutrient removal. In the new edition of the book, a special focus is given to nitrogen removal and an overview...

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• Performance of Noise Map Service Working in Cloud Computing Environment

  Publikacja

  • K. Marciniuk
  • M. Szczodrak
  • B. Kostek

  - Archives of Acoustics - Rok 2016

  In the paper a noise map service designated for the user interested in environmental noise subject is presented. It is based on cloud computing. Noise prediction algorithm and source model, developed for creating acoustic maps, are working in cloud computing environment. In the study issues related to noise modeling of sound propagation in urban spaces are discussed with a special focus on road noise. Examples of results obtained...

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• The process generation of WWTP models for optimization of activated sludge systems

  Publikacja

  • J. Drewnowski
  • K. Wiśniewski
  • A. Szaja
  • G. Łagód
  • C. Hernandez

  - Rok 2017

  The objective of water and wastewater utilities, which are responsible for optimization of wastewater treatment plant operation, is threefold: environmental protection, saving money, and mitigation of pollutant emissions, both to water and air. The performed study aimed to assess the process generation of WWTP models that improve activated sludge systems operation, by means of new developed Mantis2 model. This model accounts for...

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• Linux scheduler improvement for time demanding network applications, running on Communication Platform Systems

  Publikacja

  • M. Hasse
  • K. Nowicki

  - Journal of Telecommunications and Information Technology - Rok 2009

  Communication Platform Systems as ex. ATCA standard blades located in standardized chassis provides high level communication services between system peripherals. Each ATCA blade brings dedicated functionality to the system but can as well exist as separated host responsible for servicing set of task. According to platform philosophy these parts of system can be quite independent against another solutions provided by competitors....

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• Application of hybrid finite-difference mode-matching method to analysis of structures loaded with axially-symmetrical posts

  Publikacja

  • A. Kusiek
  • J. Mazur

  - MICROWAVE AND OPTICAL TECHNOLOGY LETTERS - Rok 2011

  W artykule przedstawiono nową metodę hybrydową do analizy układów falowodowych zawierających dowolne konfiguracje obiektów osiowo-symetrycznych. Metoda oparta jest na połączeniu metody różnic skończonych, metody dopasowania rodzajów oraz iteracyjnej procedury rozpraszania. W pracy przedstawiono badania zbieżności metody. Uzyskane wyniki numeryczne porównano z wynikami odniesienia. Duża zgodność wyników potwierdziła poprawność opracowanego...

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• Application tool for IP QoS network design

  Publikacja

  • K. Gwizdała
  • S. Kaczmarek

  - Rok 2010

  Despite the fact that differentiated-service-aware network implementation has been a widely discussed topic for quite some time, network design still proofs nontrivial. Well developed software could put an end to network designer's problems. This chapter describes work, which has been aimed at creating a comprehensive network design tool, offering a fair range of functionality and high reliability. The presented tool is able to...