Search results for: DISTRIBUTED COMPUTING AND SYSTEMS

• Software Systems Design 2024 kopia 2

  e-Learning Courses

  • A. Harasimiuk

• Operating systems (Data Engineering) - 2023/24

  e-Learning Courses

  • P. Weichbroth
  • P. Sokołowski
  • A. Kaczmarek
  • M. Wróbel

• Computer Aided Manufacturing Systems (M:320417W0)

  e-Learning Courses

  • M. Deja

• Operating systems (Data Engineering) - 2024/25

  e-Learning Courses

  • P. Weichbroth
  • P. Sokołowski
  • A. Kaczmarek
  • M. Wróbel

• Smart modeling support for managing complexities and dynamics of knowledge-based systems - part 2

  Publication

  • E. Szczerbicki

  - CYBERNETICS AND SYSTEMS - Year 2011

  Przedstawiono i poddano analizie najnowsze trendy w zakresie kierunków badań dotyczących inteligentnego wspomagania zarządzania dynamiką i kompleksowością systemów opartych na wiedzy.

  Full text to download in external service

• The equivariant spectral flow and bifurcation of periodic solutions of Hamiltonian systems

  Publication

  • M. Izydorek
  • J. Janczewska
  • N. Waterstraat

  - NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS - Year 2021

  We define a spectral flow for paths of selfadjoint Fredholm operators that are equivariant under the orthogonal action of a compact Lie group as an element of the representation ring of the latter. This G-equivariant spectral flow shares all common properties of the integer valued classical spectral flow, and it can be non-trivial even if the classical spectral flow vanishes. Our main theorem uses the G-equivariant spectral flow...

  Full text available to download

• Mobile Systems (Portable, Handheld, Transportable) for Monitoring Air Pollution

  Publication

  • M. Marć
  • B. Zabiegała
  • J. Namieśnik

  - CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY - Year 2012

  The monitoring and analysis of atmospheric air pollutants is a rapidly developing branch of analytical chemistry. The in situ analysis of atmospheric air quality using mobile instrumentation is becoming routine. The article provides information on devices used in various kinds of mobile laboratories. It reviews the portable gas chromatographs and handheld devices used for detecting and determining specific harmful substances in...

  Full text to download in external service

• On–line Parameter and Delay Estimation of Continuous–Time Dynamic Systems

  Publication

  • Z. Kowalczuk
  • J. Kozłowski

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

  The problem of on-line identification of non-stationary delay systems is considered. The dynamics of supervised industrial processes are usually modeled by ordinary differential equations. Discrete-time mechanizations of continuous-time process models are implemented with the use of dedicated finite-horizon integrating filters. Least-squares and instrumental variable procedures mechanized in recursive forms are applied for simultaneous...

  Full text available to download

• Effective dielectric constant of two phase systems: Application to mixed conducting systems

  Publication

  • V. Petrovsky
  • P. Jasiński
  • F. Dogan

  - JOURNAL OF APPLIED PHYSICS - Year 2012

  W pracy przedstawiono wyniki badań spektroskopii impedancyjnej systemów dwufazowych oraz ich porównanie z wynikami oczekiwanymi przez różne modele.

  Full text available to download

• Effect of Simultaneous Valve Closures in Hydraulic Piping Systems

  Publication

  • K. Urbanowicz
  • I. Haluch
  • A. Bergant
  • A. Deptuła
  • P. Śliwiński

  - Year 2023

  The paper investigates wave interference (between pressure waves) occurring in simple hydraulic systems. Water hammer was induced by simultaneous closure of three valves located at the reservoirs of a “Y” type hydraulic system. Numerical simulations were carried out with the help of the freeware computer package Allievi enabling the reader to replicate results in a direct manner. The influence of the following quantities has been...

  Full text to download in external service

• Selection of Organic Coating Systems for Corrosion Protection of Industrial Equipment

  Publication

  • M. Drozda
  • A. Miszczyk

  - Coatings - Year 2022

  The most important element of corrosion protection in industrial conditions is the protective coating system. However, selecting the right coating can often be a real problem due to the sheer number of coating manufacturers and their products on the market. A quantitative approach based on the data mining technique used to analyze the obtained multi-site exposure data has been proposed. This was demonstrated by the example of the...

  Full text available to download

• Human Feedback and Knowledge Discovery: Towards Cognitive Systems Optimization

  Publication

  • C. S. de Oliveira
  • C. Sanin
  • E. Szczerbicki

  - Procedia Computer Science - Year 2020

  Current computer vision systems, especially those using machine learning techniques are data-hungry and frequently only perform well when dealing with patterns they have seen before. As an alternative, cognitive systems have become a focus of attention for applications that involve complex visual scenes, and in which conditions may vary. In theory, cognitive applications uses current machine learning algorithms, such as deep learning,...

  Full text available to download

• Microemulsion Delivery Systems with Low Surfactant Concentrations: Optimization of Structure and Properties by Glycol Cosurfactants

  Publication

  • P. Szumała
  • S. Mania
  • B. Makurat-Kasprolewicz
  • J. Kaplińska

  - MOLECULAR PHARMACEUTICS - Year 2023

  Extensive use of microemulsions as delivery systems raises interest in the safe ingredients that can form such systems. Here, we assessed the use of two glycols, i.e., propylene glycol and pentylene glycol, and their mixtures to manipulate the properties and structure of microemulsions. Obtained systems with glycols were extensively characterized in terms of capacity to incorporate water phase, droplet size, polydispersity, structure...

  Full text available to download

• A Comparison of STI Measured by Direct and Indirect Methods for Interiors Coupled with Sound Reinforcement Systems

  Publication

  • J. Kotus
  • B. Kostek
  • A. Kurowski
  • P. Szczuko

  - Year 2018

  This paper presents a comparison of STI (Speech Transmission Index) coefficient measurement results carried out by direct and indirect methods. First, acoustic parameters important in the context of public address and sound reinforcement systems are recalled. A measurement methodology is presented that employs various test signals to determine impulse responses. The process of evaluating sound system performance, signals enabling...

  Full text to download in external service

• Iwona Kochańska dr hab. inż.

  People

  Department of Marine Electronic Systems

  Iwona Kochańska is a graduate of Faculty of Electronics, Telecommunications and Informatics, Gdansk University of Technology. She received M.Sc. degree in Automation Control and Robotics, specializing in the mobile objects control. In 2012 she received Ph.D. degree in hydroacoustics. In the same year she started working as an assistant professor in the Department of Marine Electronic Systems. The main area of interest is hydroacoustis, ...

• HIERARCHICAL CYCLES IN MODERN POWER SYSTEMS – EXERGY ANALYSIS UNDER PART LOADS

  Publication

  • T. Kowalczyk
  • P. Ziółkowski
  • S. Kornet

  - Transactions of the Institute of Fluid-Flow Machinery - Year 2015

  The aim of the paper is to investigate thermodynamic efficiency of advanced hierarchic power cyclesunder partial loads by using of exergy analyze. Advanced hierarchical power systems arecomposed of few energy conversion cycles, most common are steam and gas cycles in various configurations, but they may contain fuel cells, ORC, lithium bromide absorption chillers and others. Moreover hierarchical cycles can be powered by several...

• PROBLEMS OF EXPERIMENTAL DETERMINATION OF COEFFICIENTS OF THE WEAR OF SHIP PIPING SYSTEMS

  Publication

  • R. Liberacki

  - Journal of Polish CIMEEAC - Year 2016

  The article presents series of considerations relating to experimental evaluation of the reliability of ship piping systems. The aim of this study is to attempt to answer the following questions: What should be the tested element? How to choose the diameter of the tested item? What should be the result of measurements and calculations? How to measure? How to choose the duration of the test? How to choose the sample size and elaborate...

  Full text available to download

• Determining and verifying the safety integrity level of the controland protection systems under uncertainty

  Publication

  • K. Kosmowski
  • T. Barnert
  • M. Śliwiński

  - Year 2008

  The probabilistic models of the electrical, electronic and programmable electronic (E/E/PE)systems, which are proposed in the IEC 61508 and IEC 61511 standards, do not cover the uncertainty aspectsof results obtained from these models. The proposed method takes into consideration the sensitivity analysisof probabilistic models of E/E/PE systems as well as the uncertainty of probabilistic results. It uses differentialfactors, which...

• Impact of Intelligent Transport Systems Services on the Level of Safety and Improvement of Traffic Conditions

  Publication

  • J. Oskarbski
  • T. Marcinkowski
  • M. Zawisza

  - Year 2017

  The positive effects of the services of Intelligent Transport Systems (ITS) on the level of transport systems operation was confirmed by long-term studies conducted, inter alia, in the USA, Japan and Europe. Benefits resulting from the application of ITS services can be presented through performance indicators. The indicators represent in a numerical or qualitative manner to what extent ITS services can contribute to improving...

  Full text available to download

• Context-aware User Modelling and Generation of Recommendations in Recommender Systems

  Publication

  • A. Karpus

  - Year 2018

  Recommender systems are software tools and techniques which aim at suggesting new items that may be of interest to a user. This dissertation is focused on four problems in recommender systems domain. The first one is context-awareness, i.e. how to obtain relevant contextual information, how to model user preferences in a context and use them to make predictions. The second one is multi-domain recommendation, which aim at suggesting...

  Full text available to download

• Survey on fuzzy logic methods in control systems of electromechanical plants

  Publication

  • R. Strzelecki
  • G. Demidova
  • D. Lukichev
  • N. Polyakov
  • A. Abdullin
  • S. Lovlin

  - Science, Technology and Arts Research Journal - Year 2019

  Рассмотрены алгоритмы управления электромеханическими системами с использованием теории нечеткой логики, приводятся основные положения их синтеза, рассматриваются методы анализа их устойчивости на основе нечетких функций Ляпунова. Эти алгоритмы чаще всего реализуются в виде различных регуляторов, применение которых целесообразно в системах, математическая модель которых не известна, не детерминирована или является строго нелинейной,...

  Full text available to download

• Quality measure of VoIP services in carrier grade systems

  Publication

  • S. Kaczmarek
  • M. Krajewski

  - Zeszyty Naukowe Wydziału ETI Politechniki Gdańskiej. Technologie Informacyjne - Year 2010

  This paper describes passive measurement method of VoIP services quality in carrier grade systems, engaging slight system resources. Measurement is based on analyzing quality information in sender and receiver reports in RTCP packets sent by the end points of RTP session. Data is analyzed and stored by Session Boarder Controllers SBC. Objective evaluation of VoIP calls is based on quality information of IP connection and voice...

• Towards truly sustainable IoT systems: the SUPERIOT project

  Publication

  • M. Katz
  • T. Paso
  • K. Mikhaylov
  • L. Pessoa
  • H. Fontes
  • L. Hakola
  • J. Leppäniemi
  • E. Carlos
  • G. Dolmans
  • J. Rufo... and 5 others

  - Journal of Physics-Photonics - Year 2024

  This paper provides an overview of the SUPERIOT project, an EU SNS JU (Smart Networks and Services Joint Undertaking) initiative focused on developing truly sustainable IoT systems. The SUPERIOT concept is based on a unique holistic approach to sustainability, proactively developing sustainable solutions considering the design, implementation, usage and disposal/reuse stages. The concept exploits radio and optical technologies...

  Full text available to download

• Energy Systems Stations, W, ET, sem.7, zimowy 22/23 (PG_00042106)

  e-Learning Courses

  • R. Liberacki

  Internal combustion engines - principle of operation and classification. Heat balance of the engine. Uniform and combined propulsion systems.The main comonents of the propulsion system. Power plant efficiency and waste heat utilization. Cooling water system, lubricating oil system, fuel oil systeml, gaseos fuel system (LNG), compressed air system, exhaust gas system. Fittings and accessories of pipeline systems in the power plant....

• Scalable Computing: Practice and Experience

  Journals

  ISSN: 1895-1767

• WIRELESS COMMUNICATIONS & MOBILE COMPUTING

  Journals

  ISSN: 1530-8669 , eISSN: 1530-8677

• INTERNATIONAL JOURNAL OF AUTOMATION AND COMPUTING

  Journals

  ISSN: 1476-8186 , eISSN: 1751-8520

• Journal of Computing in Higher Education

  Journals

  ISSN: 1042-1726 , eISSN: 1867-1233

• International Journal of Architectural Computing

  Journals

  ISSN: 1478-0771 , eISSN: 2048-3988

• International Journal of Semantic Computing

  Journals

  ISSN: 1793-351X , eISSN: 1793-7108

• IEEE Transactions on Affective Computing

  Journals

  ISSN: 1949-3045

• IEEE Transactions on Services Computing

  Journals

  ISSN: 1939-1374

• ACM Transactions on Parallel Computing

  Journals

  ISSN: 2329-4949 , eISSN: 2329-4957

• IEEE Transactions on Cloud Computing

  Journals

  ISSN: 2168-7161

• ACM Transactions on Accessible Computing

  Journals

  ISSN: 1936-7228 , eISSN: 1936-7236

• ICTACT Journal on Soft Computing

  Journals

  ISSN: 0976-6561

• Journal of High Performance Computing

  Journals

  ISSN: 2230-7192

• Journal of Applied Mathematics and Computing

  Journals

  ISSN: 1598-5865 , eISSN: 1865-2085

• ACM Transactions on Computing Education

  Journals

  ISSN: 1946-6226

• International Journal of Reconfigurable Computing

  Journals

  ISSN: 1687-7195 , eISSN: 1687-7209

• JOURNAL OF CLINICAL MONITORING AND COMPUTING

  Journals

  ISSN: 1387-1307 , eISSN: 1573-2614

• Baltic Journal of Modern Computing

  Journals

  ISSN: 2255-8942 , eISSN: 2255-8950

• IEEE ANNALS OF THE HISTORY OF COMPUTING

  Journals

  ISSN: 1058-6180 , eISSN: 1934-1547

• Service Oriented Computing and Applications

  Journals

  ISSN: 1863-2386 , eISSN: 1863-2394

• Mobile Computing and Communications Review

  Journals

  ISSN: 1559-1662 , eISSN: 1931-1222

• Journal of Computing and Information Technology

  Journals

  ISSN: 1330-1136

• Statistics, Optimization and Information Computing

  Journals

  ISSN: 2311-004X

• International Journal of Cloud Computing

  Journals

  ISSN: 2043-9989

• IEEE TRANSACTIONS ON MOBILE COMPUTING

  Journals

  ISSN: 1536-1233 , eISSN: 1558-0660

• Journal of Computing Science and Engineering

  Journals

  ISSN: 1976-4677