Wyniki wyszukiwania dla: FIRST-PASS MODELLING

• Modelling processes for Polish civil aviation market

  Publikacja

  • A. Orłowski
  • E. Szczerbicki

  - Rok 2013

  The present , paper is the first step in research of Polish civil aviation market, focusing on the area of civil, legacy airlines. First, the market is described with its players, current conditions and its main problems. Next, the tools which are currently used for the prognosis processes are presented. Finally, the idea of a new model (fuzzy model) for the process of prognosis is presented.

• THE MODELLING OF ACCUMULATION AND DISSIPATION OF ENERGY IN MECHANICAL DRIVE SYSTEM

  Publikacja

  • A. Kaczmarski

  - Journal of Polish CIMEEAC - Rok 2013

  This paper presents a modelling of accumulation and dissipation energy in simple drive system. The simple drive system is presented by laboratory stand designed for calculate fatigue life of material for bending and rotation tests pieces. The laboratory stand was prepared to diagnosis of fatigue life of material by use energetic methods. This idea was submitted as utility model to Polish Patent Office. This laboratory stand gives...

  Pełny tekst do pobrania w portalu

• Jan Kozicki dr hab. inż. arch.

  Osoby

  Instytut Fizyki i Informatyki Stosowanej

  W roku 2002 po uzyskaniu dyplomu magistra inżyniera w zakresie konstrukcji budowlanych podjął pracę na Wydziale Inżynierii Lądowej i Środowiska PG. W 2004 roku uzyskał dyplom magistra architekta na Wydziale Architektury za projekt stacji badawczej na Marsie. Doktorat obronił w 2007 roku w zakresie modelowania numerycznego w dynamice klasycznej. W 2013 roku uzyskał licencjat z zakresu fizyki teoretycznej na Uniwersytecie Gdańskim....

• First example of a diazepinoporphyrazine with dendrimeric substituents

  Publikacja

  • E. Wieczorek
  • J. Piskorz
  • L. Popenda
  • S. Jurga
  • J. Mielcarek
  • T. Goslinski

  - Tetrahedron Letters - Rok 2017

  Pełny tekst do pobrania w serwisie zewnętrznym

• The first bite syndrome after parotidectomy

  Publikacja

  • K. Lammek
  • D. Tretiakow
  • A. Skorek

  - ORAL ONCOLOGY - Rok 2020

  Pełny tekst do pobrania w serwisie zewnętrznym

• First-order advanced difference equations

  Publikacja

  • T. Jankowski

  - APPLIED MATHEMATICS AND COMPUTATION - Rok 2010

  Badano istnienie rozwiązań równań różnicowych rzędu pierwszego z wyprzedzonymi argumentami. Podano warunki na istnienie jedynego rozwiązania. Przedmiotem badań były też nierówności różnicowe związane z w/w równaniami różnicowymi. Otrzymane wyniki zilustrowano na przykładzie.

  Pełny tekst do pobrania w serwisie zewnętrznym

• Abandoned heritage – the first European airports

  Publikacja

  • A. Szuta

  - Czasopismo Techniczne - Rok 2019

  Due to the development of air transport and urban expansion, the locations of pre-war airports were often changed. The question of the fate of the abandoned airports and their entire infrastructure arose. This article looks at the issue of derelict, pre-war airfields. Examples of airports which were successfully adapted as well as the ones which were abandoned and closed yet but equally important in historical context are shown....

  Pełny tekst do pobrania w portalu

• Modelling of Abdominal Wall Under Uncertainty of Material Properties

  Publikacja

  • K. Szepietowska
  • I. Lubowiecka
  • B. Magnain
  • E. Florentin

  - Rok 2020

  The paper concerns abdominal wall modelling. The accurate prediction and simulation of abdominal wall mechanics are important in the context of optimization of ventral hernia repair. The shell Finite Element model is considered, as the one which can be used in patient-specific approach due to relatively easy geometry generation. However, there are uncertainties in this issue, e.g. related to mechanical properties since the properties...

  Pełny tekst do pobrania w portalu

• Modelling and analysis of beam/bar structure by application of bond graphs

  Publikacja

  • C. Orlikowski
  • R. Hein

  - Journal of Theoretical and Applied Mechanics - Rok 2011

  The paper presents an uniform, port-based approach to modelling of beam/bar systems (trusses). Port-based model of such distributed parameter system has been defined by application of the bond graph methodology and the distributed transfer function method (DTFM). The proposed method of modelling enables to formulate input data for computer analysis by application of the DTFM. The constructed computational package enables the frequency...

  Pełny tekst do pobrania w portalu

• Modelling of joining route segments of differential curvature

  Publikacja

  • W. Koc
  • K. Palikowska

  - Baltic Journal of Road and Bridge Engineering - Rok 2016

  The paper presents a new general method of modelling route segments curvature using differential equations. The method enables joining of route segments of different curvature. Transitional curves of linear and nonlinear curvatures have been identified in the case of joining two circular arcs by S-shaped and C-oval transitions. The obtained S-shaped curves have been compared to the cubic C-Bezier curves and to the Pythagorean hodograph...

  Pełny tekst do pobrania w portalu

• Modelling of Nuclear Power Plant Steam Turbine

  Publikacja

  • A. Kobylarz
  • K. Kulkowski
  • M. Grochowski
  • K. Duzinkiewicz

  - Rok 2014

  The paper describes the approach to a Nuclear Power Plant steam turbine modelling which would enable on-line optimal process control (model based) and diagnosis over wide range of operating conditions caused by changing power demand. Presented model is static, multivariable and nonlinear. Such model enables analyzing the heat cogeneration aspects. Developed model is validated and verified by using archive data gained from researches...

• Modelling of Nuclear Power Plant Steam Turbine

  Publikacja

  • A. Kobylarz
  • K. Kulkowski
  • K. Duzinkiewicz
  • M. Grochowski

  - Rok 2014

  The paper describes the approach to a Nuclear Power Plant steam turbine modelling which would enable on-line optimal process control (model based) and diagnosis over wide range of operating conditions caused by changing power demand. Presented model is static, multivariable and nonlinear. Such model enables analyzing the heat cogeneration aspects. Developed model is validated and verified by using archive data gained from researches...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Modelling, Simulation and Optimization of the Wavemaker in a Towing Tank

  Publikacja

  • M. Drzewiecki

  - Advances in Intelligent Systems and Computing - Rok 2017

  The paper analyses the problem of experimental identification (frequency response), modelling and optimization of the towing tank wavemaker in the Scilab/Xcos environment. The experimental identification of the objects (the towing tank wavemaker placed in the hydrodynamic laboratory of the CTO S.A. Ship Design and Research Centre (CTO)) and the implementation of the models in the simulation environment, enable to perform: 1. tuning...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Chapter 2: Modelling and analysis of rotor with magnetic bearing system

  Publikacja

  • C. Orlikowski
  • R. Hein

  - Rok 2008

  The paper is concerned with rotor magnetic bearing system modelling. Such system is a relatively complex electromechanical system and can be considered as typical mechatronic one. The port-based modelling of physical systems has been used to obtain discrete-continuous model of considered system. Proposed approach enables to obtain reduced low-order lumped parameter representation of the system including gyroscopic interactions....

• Mathematical and numerical modelling,W,IDE-EMSS,IIst,sem.01,lato,2023/24 (PG_00057379)

  Kursy Online

  • K. J. Kaliński

  Modelling of controlled mechanical systems by the mixed method of rigid and flexible finite elements: The finite element volume problems. Dynamics of multibody systems. Modelling of stationary closed loop systems. Modelling of systems whose configuration changes with time. Modelling of nonlinear controlled systems. Optimal control at energy performance index: Control of continuous nonstationary systems in domain of generalised...

• The Influence of Selected Parameters of Numerical Modelling on Strains and Stresses at Weld Toe Notch

  Publikacja

  • K. Niklas
  • J. Kozak

  - Rok 2015

  Latest development in the field of welding technology and prefabrication enabled massive production of thin-walled sandwich structures. Multi-layered sandwich structures are fabricated with the use of high-power CO2 lasers, friction welding, arc welding, hybrid welding, or other technique designed for the special purpose. Steel or aluminium alloy plates with thickness between 1 and 5 mm are connected by internal stiffeners. Strength...

• Mathematical modelling of implant in an operated hernia for estimation of the repair persistence

  Publikacja

  • I. Lubowiecka

  - COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING - Rok 2015

  This paper presents mathematical modelling of an implanted surgical mesh used in the repair process of the abdominal hernia. The synthetic implant is simulated by a membrane structure. The author provides a material modelling of the implant based on the dense net model appropriate for technical fabrics. The accuracy of the proposed solution is evaluated by comparing the simulations of the dynamic behaviour of the system with the...

  Pełny tekst do pobrania w serwisie zewnętrznym

• On Guard for Lighting Quality. The establishment of the first association of professional lighting designers

  Publikacja

  • K. Zielińska-Dąbkowska

  - ARC Lighting In Architecture - Rok 2021

  Not many people in the lighting community are aware of the fact, that after electricity was invented and in general use in the United States from the late nineteenth century, only electrical engineers were responsible for the illumination of architecture. After 1906, when the Illuminating Engineering Society of North America (IESNA) was established in the USA, companies and individuals professionally involved in the field of gas...

  Pełny tekst do pobrania w portalu

• Local material symmetry group for first- and second-order strain gradient fluids

  Publikacja

  • V. Eremeev

  - MATHEMATICS AND MECHANICS OF SOLIDS - Rok 2021

  Using an unified approach based on the local material symmetry group introduced for general first- and second-order strain gradient elastic media, we analyze the constitutive equations of strain gradient fluids. For the strain gradient medium there exists a strain energy density dependent on first- and higher-order gradients of placement vector, whereas for fluids a strain energy depends on a current mass density and its gradients....

  Pełny tekst do pobrania w portalu

• Design of mm-wave MIC frequency multiplayers and mixers using simple microstrip high-pass filters

  Publikacja

  • J. Chramiec
  • M. Kitliński
  • A. Bochenek
  • B. Janiczak

  - Rok 2006

  Przedyskutowano podstawowe wymagania dotyczące impedancji elementów półprzewodnikowych wykorzystywanych w mieszaczach i powielaczach częstotliwości projektowanych dla zakresu fal milimetrowych. Określono typy układów filtrujących niezbędnych w różnych częściach układów, podkreślając znaczenie filtrów górnoprzepustowych. Mikropaskowy filtr ze zwartym brzegiem został wykonany i zaimplementowany w mieszaczu pracującym w zakresie 20-40GHz.

• Microstrip line with short-circuited edge as a high-pass filter operating up to millimeter-wave frequencies

  Publikacja

  • J. Chramiec
  • M. Kitliński
  • B. Janiczak

  - MICROWAVE AND OPTICAL TECHNOLOGY LETTERS - Rok 2007

  Przedstawiono prosty planarny filtr górnoprzepustowy wykorzystujący linię mikropaskową ze zwartym brzegiem. Układy zaprojektowano w taki sposób, aby pasmo przepustowe rozpoczynało się w zakresie K lub Ka. Wykonano dwa prototypy: na podłożu w postaci warstwy dielektrycznej wykonanej z ceramiki alundowej oraz na podłożu organicznym o niskiej przenikalności elektrycznej. Wykazano dużą zgodność teoretycznych i pomierzonych charakterystyk...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Fifth-order low-pass CMOS OTA-C continuous-time filter with on-chip automatic tuning

  Publikacja

  • B. Pankiewicz
  • M. Solecki

  - Rok 2003

  W pracy przedstawiono budowę operacyjnego wzmacniacza transkonduktancyjnego (OTA) zasilanego napięciem stałym 2.8-4.5V wykonanego w technologii CMOS0.8um n-well. Wzmacniacz ten wykorzystano do budowy dolnoprzepustowego filtru czasu ciągłego typu OTA-C piątego rzędu. W układzie scalonym umieszczono także blok automatycznego dostrajania częstotliwości odcięcia filtru. Przedstawiono wyniki symulacji komputerowych (modele MOS BSIM3v3)...

• COMBUSTION THEORY AND MODELLING

  Czasopisma

  ISSN: 1364-7830 , eISSN: 1741-3559

• Journal of Modelling in Management

  Czasopisma

  ISSN: 1746-5664 , eISSN: 1746-5672

• Journal of Choice Modelling

  Czasopisma

  ISSN: 1755-5345

• Journal of Language Modelling

  Czasopisma

  ISSN: 2299-8470 , eISSN: 2299-856X

• Modelling, Measurement and Control A

  Czasopisma

  ISSN: 1259-5985

• Mathematical Modelling and Control

  Czasopisma

  eISSN: 2767-8946

• Infectious Disease Modelling

  Czasopisma

  ISSN: 2468-0427

• Towards modelling of the environmental fate of pharmaceuticals using the QSPR-MM scheme

  Publikacja

  • K. Jagiello
  • A. Mostrag-Szlichtyng
  • A. Gajewicz
  • T. Kawai
  • Y. Imaizumi
  • T. Sakurai
  • H. Yamamoto
  • N. Tatarazako
  • K. Mizukawa
  • Y. Aoki... i 3 innych

  - ENVIRONMENTAL MODELLING & SOFTWARE - Rok 2015

  Pełny tekst do pobrania w serwisie zewnętrznym

• Modelling of high frequency dynamic responses of engineering structures

  Publikacja

  • A. Żak
  • M. Krawczuk
  • G. Redlarski
  • W. Waszkowiak

  - Rok 2017

  Modelling of high frequency dynamic responses of engineering structures, especially those related to wave propagation, is a real numerical challenge. Nowadays most of numerical models, used for that purpose, are based on the application of various finite element techniques. However, finite element discrete models may also be considered as possessing certain periodic structures, which may manifest themselves in particular scenarios....

• Strong ellipticity within the Toupin–Mindlin first strain gradient elasticity theory

  Publikacja

  • V. Eremeev
  • M. Lazar

  - MECHANICS RESEARCH COMMUNICATIONS - Rok 2022

  We discuss the strong ellipticity (SE) condition within the Toupin–Mindlin first strain gradient elasticity theory. SE condition is closely related to certain material instabilities and describes mathematical properties of corresponding boundary-value problems. For isotropic solids, SE condition transforms into two inequalities in terms of five gradient-elastic moduli.

  Pełny tekst do pobrania w portalu

• Conducted emi propagation modelling in the wound components.

  Publikacja

  • J. Łuszcz

  - Rok 2004

  The modelling of EMC behaviour of power electronics converters require specific models of devices which are adequate in a wide frequency range. A novel equivalent-circuit model of the inductor, suitable for EMC applications, has been developed and validated. The model can be used for the analyses of wounded components' behaviour in the conducted-EMI frequency range. The parameters of the proposed model can be evaluated based on...

• Path Loss Modelling in the Untypical Outdoor Propagation Environments

  Publikacja

  • S. J. Ambroziak
  • R. Katulski

  - Rok 2014

  In the paper three ways of path loss modelling in the untypical outdoor environments are presented. The exemplary untypical outdoor environment is analyzed. The investigated environment is characterized, and the measurement campaign are shortly described. The following models have been analyzed: the COST231 Walfisch-Ikegami model, the modified COST231Walfisch-Ikegami model tuned on the basis of empirical data, and the empirical...

• Analytical method of modelling the geometric system of communication route

  Publikacja

  • W. Koc

  - MATHEMATICAL PROBLEMS IN ENGINEERING - Rok 2014

  The paper presents a new analytical approach to modelling the curvature of a communication route by making use of differential equations. The method makes it possible to identify both linear and nonlinear curvature. It enables us to join curves of the same or opposite signs of curvature. Solutions of problems for linear change of curvature and selected variants of nonlinear curvature in polynomial and trigonometric form were analyzed....

  Pełny tekst do pobrania w portalu

• Effect of lag screw on stability of first metatarsophalangeal joint arthrodesis with medial plate

  Publikacja

  • K. Daszkiewicz
  • M. Rucka
  • K. Czuraj
  • A. J. Andrzejewska-Sroka
  • P. Łuczkiewicz

  - PeerJ - Rok 2024

  Background: First metatarsophalangeal joint (MTP-1) arthrodesis is a commonly performed procedure in the treatment of disorders of the great toe. Since the incidence of revision after MTP-1 joint arthrodesis is not insignificant, a medial approach with a medially positioned locking plate has been proposed as a new technique. The aim of the study was to investigate the effect of the application of a lag screw on the stability and...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Biological processes modelling for MBR systems: A review of the state-of-the-art focusing on SMP and EPS

  Publikacja

  • G. Mannina
  • B. Ni
  • J. Mąkinia
  • J. Hermand
  • M. Alliet
  • C. Brepols
  • M. V. Ruano
  • A. Robles
  • M. Heran
  • H. Gulhan... i 2 innych

  - WATER RESEARCH - Rok 2023

  A mathematical correlation between biomass kinetic and membrane fouling can improve the understanding and spread of Membrane Bioreactor (MBR) technology, especially in solving the membrane fouling issues. On this behalf, this paper, produced by the International Water Association (IWA) Task Group on Membrane modelling and control, reviews the current state-of-the-art regarding the modelling of kinetic processes of biomass, focusing on...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Modelling method for a class of distributed-lumped parameter systems

  Publikacja

  • R. Hein
  • C. Orlikowski

  - Rok 2011

  The paper presents an alternative approach for modelling and order reduction of continuous system. The proposed methodology combines application of two methods: the modal decomposition method and the rigid finite element method. The given continuous structure is divided into 1D continuous substructures. For each 1D substructure modal decomposition and reduction procedure is applied. Interactions between substructures are described...

• Respiratory system modelling and simulation basing on the forced oscilation technique

  Publikacja

  • R. Kalicka
  • W. Słomiński
  • K. Kuziemski

  - Rok 2007

  Conventional methods of testing lung functioning demand a specific respiratory action of the patient. In contrast, the forced oscillation technique (fot) provides measurements obtained with a minimal cooperation of the subject. The aim of this study is to verify the usefulness of the forced oscillation technique modelling in respiratory system diagnosing. in order to do it two models of fot measurements have been considered: the...

• 3D MODELLING OF CYLINDRICAL-SHAPED OBJECTS FROM LIDAR DATA - AN ASSESSMENT BASED ON THEORETICAL MODELLING AND EXPERIMENTAL DATA

  Publikacja

  • K. Bobkowska
  • A. Janowski
  • J. Szulwic

  - Metrology and Measurement Systems - Rok 2018

  Despite the increasing availability of measured laser scanning data and their widespread use, there is still the problem of rapid and correct numerical interpretation of results. This is due to the large number of observations that carry similar information. Therefore, it is necessary to extract from the results only the essential features of the modelled objects. Usually, it is based on a process using filtration, followed by...

  Pełny tekst do pobrania w portalu

• Industry 4.0 Implementation Challenges in Manufacturing Industries: an Interpretive Structural Modelling Approach

  Publikacja

  • A. R. Bakhtari
  • V. Kumar
  • M. Waris
  • C. Sanin
  • E. Szczerbicki

  - Procedia Computer Science - Rok 2020

  For the last few years, the fourth industrial revolution, known as Industry 4.0, has been a hot topic among academics. Industry 4.0 literature involves researches presenting studies related to its different aspects including challenges, opportunities, implementation and adoption. However, a detailed study of challenges and barriers towards the Industry 4.0 implementation in manufacturing industries is missing. Hence, this paper...

  Pełny tekst do pobrania w portalu

• Modelling of acoustic backscattering by southern Baltic herring

  Publikacja

  • J. Idczak
  • N. Gorska

  - HYDROACOUSTICS - Rok 2016

  Assessment of Baltic herring abundance can be carried out using acoustic techniques. Analysis of the relationship between the Baltic herring individual target strength, TS, and the total fish length, L, important for the acoustic assessment, showed the relationship to be dependent on the location of the study area. This finding motivated a detailed analysis of the relationship for the herring occurring in the southern Baltic...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Hydrological predictors used for vegetation modelling in the lower Biebrza valley 1900-2099

  Dane Badawcze

  open access

  • T. Berezowski

  This data set contains hydrological predictors used for vegetation modelling in the lower Biebrza valley, NE Poland.The predictors were obtained from simulations using integrated hydrological model - HydroGeoSphere, with the Hydraulic Mixing-Cell method.Forcing data for the model were Twentieth Century Reanalysis (20CR) data for the period 1900-2015...

• Krzysztof Giaro prof. dr hab. inż.

  Osoby

  Katedra Algorytmów i Modelowania Systemów

• Modelling and analysis of medium frequency transformers for power converters

  Publikacja

  • P. Dworakowski

  - Rok 2020

  The evolutions in power systems and electric vehicles, related to the economic opportunities and the environmental issues, bring the need of high power galvanically isolated DC-DC converter. The medium frequency transformer (MFT) is one of its key components, enabled by the increasing switching frequency of modern power semiconductors like silicon carbide transistors or diodes. The increased operating frequency offers small...

  Pełny tekst do pobrania w portalu

• Voiceless Stop Consonant Modelling and Synthesis Framework Based on MISO Dynamic System

  Publikacja

  • G. Korvel
  • B. Kostek

  - Archives of Acoustics - Rok 2017

  A voiceless stop consonant phoneme modelling and synthesis framework based on a phoneme modelling in low-frequency range and high-frequency range separately is proposed. The phoneme signal is decomposed into the sums of simpler basic components and described as the output of a linear multiple-input and single-output (MISO) system. The impulse response of each channel is a third order quasi-polynomial. Using this framework, the...

  Pełny tekst do pobrania w portalu

• Modelling of heat and mass transfer through wooden buildings

  Publikacja

  • R. Méchi
  • E. Miszewska
  • K. Slimi
  • R. Jankowski

  - Proceedings of the Institution of Civil Engineers-Engineering and Computational Mechanics - Rok 2020

  The aim of this review paper is to examine the most recent available studies dealing with theoretical, numerical and experimental aspects related to modelling of heat and mass transfer through wooden buildings. The main thermophysical, mechanical and hygrometric properties of wood are firstly discussed. Then, the basic governing equations of heat and mass transfer phenomena are presented. A detailed description of the physical...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Software tool for modelling of mechatronic systems with elastic continua

  Publikacja

  • C. Orlikowski
  • R. Hein

  - Rok 2011

  The paper presents a systematic computational package for modelling and analysis of complex systems composed of multiple lumped and distributed parameter subsystems. The constructed computer program enables the frequency domain analysis of a class of linear systems and to obtain reduced order model in the form of bond graph. Obtained modal bond graph can be directly exported into 20-Sim package to further processing including nonlinear...

• Modelling of performance of an AUV stealth vehicle. Design for operation.

  Publikacja

  • M. K. Gerigk

  - Rok 2018

  In the paper some results of research connected with modelling of performance and risk assessment of an AUV stealth vehicle are presented. A general approach to design of the stealth AUV autonomous underwater vehicle under consideration is introduced. The basic stealth characteristics of the AUV stealth vehicle are briefly described. The method of research is introduced. The AUV stealth vehicle concept is presented including the...

  Pełny tekst do pobrania w serwisie zewnętrznym

• A two dimensional approach for modelling of pennate muscle behaviour

  Publikacja

  • W. Wojnicz
  • B. Zagrodny
  • M. Ludwicki
  • J. Awrejcewicz
  • E. Wittbrodt

  - Biocybernetics and Biomedical Engineering - Rok 2017

  The purpose of this study was to elaborate a two-dimensional approach for unipennate and bipennate striated skeletal muscle modelling. Behavior of chosen flat pennate muscle is modelled as a rheological system composed of serially linked passive and active fragments having different mechanical properties. Each fragment is composed of three elements: mass element, elastic element and viscous element. Each active fragment furthermore...

  Pełny tekst do pobrania w serwisie zewnętrznym