Wyniki wyszukiwania dla: FIRST-PASS MODELLING

• Rating mathematical models for first-pass of tracer in pCT lung studies

  Publikacja

  • M. Browarczyk
  • S. Lipiński

  - Rok 2014

  This paper presents a comparison of model based on the Gauss function and the most commonly used Gamma-variate model in perfusion computed tomography (pCT) lung studies. It also verifies whether used model affects value of blood volume parameter. Three mean concentration-time curves were created from actual pCT measurements: arterial input function, blood vessels in lungs and lung parenchyma. On the basis of these mean curves we...

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

  Publikacja

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

  - Rok 2021

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• Emotions in polish speech recordings

  Dane Badawcze

  open access

  • M. Mięsikowska
  • D. Świsulski

  The data set presents emotions recorded in sound files that are expressions of Polish speech. Statements were made by people aged 21-23, young voices of 5 men. Each person said the following words / nie – no, oddaj - give back, podaj – pass, stop - stop, tak - yes, trzymaj -hold / five times representing a specific emotion - one of three - anger (a),...

• Mohammad Hossein Ghaemi dr inż.

  Osoby

  Biuro Praw,Wartości Akademickich i Równego Traktowania, Instytut Budowy Okrętów

  Mohammad Hossein Ghaemi (ur. 1967), adiunkt Wydziału Oceanotechniki i Okrętownictwa (WOiO) PG w Katedrze Automatyki i Energetyki. Jest absolwentem Uniwersytetu Teherańskiego z zakresu mechaniki ciała stałego, a także PG na kierunku Oceanotechnika. Uzyskał stopień doktora nauk technicznych na PG w 2004 roku. Od 1995 roku pracuje na WIMiO PG (do 2020 r. WOiO PG) i prowadzi zajęcia dydaktyczne i badania naukowe w zakresie automatyki...

• Long-term hindcast simulation of water temperature and salinity in the Baltic Sea

  Dane Badawcze

  wersja 2.0 open access

  • M. Kowalewski

  - seria: Long-term hindcast simulation of hydrodynamics in the Baltic Sea

  The dataset contains the results of numerical modelling of water temperature and salinity over a period of 50 years (1958-2007) in the Baltic Sea. A long-term hindcast simulation was performed using a three-dimensional hydrodynamic model PM3D (Kowalewski and Kowalewska-Kalkowska, 2017), a new version of the M3D model (Kowalewski, 1997).  The hydrodynamic...

• Long-term hindcast simulation of currents in the Baltic Sea

  Dane Badawcze

  wersja 2.0 open access

  • M. Kowalewski

  - seria: Long-term hindcast simulation of hydrodynamics in the Baltic Sea

  The dataset contains the results of numerical modelling of currents over a period of 50 years (1958-2007) in the Baltic Sea . A long-term hindcast simulation was performed using a three-dimensional hydrodynamic model PM3D (Kowalewski and Kowalewska-Kalkowska, 2017), a new version of the M3D model (Kowalewski, 1997).  The hydrodynamic model was coupled...

• Vident-synth: a synthetic intra-oral video dataset for optical flow estimation

  Dane Badawcze

  embargo

  • E. Lewandowska
  • A. Jezierska
  • D. Węsierski

  We introduce Vident-synth, a large dataset of synthetic dental videos with corresponding ground truth forward and backward optical flows and occlusion masks. It can be used for:

• Dariusz Mikielewicz prof. dr hab. inż.

  Osoby

  Zakład Systemów i Urządzeń Energetyki Cieplnej, Politechnika Gdańska, Instytut Energii

  Dariusz Mikielewicz – urodził się 6 lutego 1967 roku w Gdańsku, w 1985r. zdał pomyślnie egzaminy wstępne na Wydział Budowy Maszyn Politechniki Gdańskiej, który ukończył z wynikiem bardzo dobrym w 1990 roku na specjalności Maszyny i Urządzenia Energetyczne. Zainteresowania pracą naukową skłoniły go do podjęcia badań na University of Manchester na wydziale mechanicznym i energetyki jądrowej (Mechanical and Nuclear Engineering Department)...

• Risk of incorrect pass-fail decisions associated with assessment uncertainty

  Publikacja

  • W. Toczek

  - Rok 2016

  A mathematical framework for calculation teacher's and student's risks of incorrect pass-fail decisions under uncertainty of assessment, is presented. The probabilistic model of assessment process is adapted from interdisciplinary probabilistic theory of measurement.

• A convergence result for mountain pass periodic solutions of perturbed Hamiltonian systems

  Publikacja

  • M. Izydorek
  • J. Janczewska
  • P. Soares

  - COMMUNICATIONS IN CONTEMPORARY MATHEMATICS - Rok 2022

  In this work, we study second-order Hamiltonian systems under small perturbations. We assume that the main term of the system has a mountain pass structure, but do not suppose any condition on the perturbation. We prove the existence of a periodic solution. Moreover, we show that periodic solutions of perturbed systems converge to periodic solutions of the unperturbed systems if the perturbation tends to zero. The assumption on...

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• Wiktoria Wojnicz dr hab. inż.

  Osoby

  Zakład Mechaniki Stosowanej i Biomechaniki, Instytut Mechaniki i Konstrukcji Maszyn

  DSc in Mechanics (in the field of Biomechanics)  - Lodz Univeristy of Technology, 2019  PhD in Mechanics (in the field of Biomechanics)  - Lodz Univeristy of Technology, 2009 (with distinction)   Publikacje z listy MNiSW (2009 - ) Wojnicz W., Wittbrodt E., Analysis of muscles' behaviour. Part I. The computational model of muscle. Acta of Bioengineering and Biomechanics, Vol. 11, No.4, 2009, p. 15-21 Wojnicz W., Wittbrodt E., Analysis...

• First Language

  Czasopisma

  ISSN: 0142-7237 , eISSN: 1740-2344

• First Monday

  Czasopisma

  ISSN: 1396-0466

• First Break

  Czasopisma

  ISSN: 0263-5046

• Novel microstrip low-pass filters with fractal defected ground structures

  Publikacja

  • P. Kurgan
  • M. Kitliński

  - MICROWAVE AND OPTICAL TECHNOLOGY LETTERS - Rok 2009

  In this study, three microstrip low-pass filters (LPFs) containing fractal-shaped defected ground structures have been designed and manufactured. To improve the performance of microstrip LPF, cascades of inductively coupled fractal resonators have been applied. Simultaneously, to achieve relatively constant microstrip impedance resulting in essentially low reflection losses, a modification of the strip geometry has been introduced....

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• Mariusz Figurski prof. dr hab. inż.

  Osoby

  Katedra Geodezji

  Dyrektor Centrum Modelowania Meteorologicznego Instytut Meteorologii i Gospodarki Wodnej - Państwowy Instytut Badawczy. Urodził się 27 kwietnia 1964 roku w Łasinie. Egzamin maturalny złożył w 1983 roku po ukończeniu II Liceum Ogólnokształcącego im. Jana III Sobieskiego w Grudziądzu, Studia wyższe w trybie indywidualnym ukończył w 1989 (10.07.1989) na Wydziałach Elektromechanicznym i Inżynierii Lądowej i Geodezji Wojskowej Akademii...

• Dynamic mass measurement in checkweighers using a discrete time-variant low-pass filter

  Publikacja

  • P. Pietrzak
  • M. Meller
  • M. Niedźwiecki

  - MECHANICAL SYSTEMS AND SIGNAL PROCESSING - Rok 2014

  Conveyor belt type checkweighers are complex mechanical systems consisting of a weighing sensor (strain gauge load cell, electrodynamically compensated load cell), packages (of different shapes, made of different materials) and a transport system (motors, gears, rollers). Disturbances generated by the vibrating parts of such a system are reflected in the signal power spectra in a form of strong spectral peaks, located usually in...

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• Mountain pass solutions to Euler-Lagrange equations with general anisotropic operator

  Publikacja

  • M. Chmara
  • J. Maksymiuk

  - JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS - Rok 2020

  Using the Mountain Pass Theorem we show that the problem \begin{equation*} \begin{cases} \frac{d}{dt}\Lcal_v(t,u(t),\dot u(t))=\Lcal_x(t,u(t),\dot u(t))\quad \text{ for a.e. }t\in[a,b]\\ u(a)=u(b)=0 \end{cases} \end{equation*} has a solution in anisotropic Orlicz-Sobolev space. We consider Lagrangian $\Lcal=F(t,x,v)+V(t,x)+\langle f(t), x\rangle$ with growth conditions determined by anisotropic G-function and some geometric conditions...

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• Marek Czachor prof. dr hab.

  Osoby

  Instytut Fizyki i Informatyki Stosowanej

• APPLIED MATHEMATICAL MODELLING

  Czasopisma

  ISSN: 0307-904X , eISSN: 1872-8480

• Novel topology of compact coplanar waveguide resonant cell low-pass filter

  Publikacja

  • P. Kurgan
  • A. Bekasiewicz
  • M. Pietras
  • M. Kitliński

  - MICROWAVE AND OPTICAL TECHNOLOGY LETTERS - Rok 2012

  In this study, a novel pseudoelliptic function low-pass filter (LPF) constituted by a compact coplanar waveguide resonant cell has been designed and manufactured. The lumped-element seven-pole prototype has been adequately realized by using complementary perturbations located both in signal line and ground plane metallization. The fabricated uniplanar LPF offers a compact size of 5.6 x 9.8 mm2, return loss better than 26 dB over...

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• Automatic Correction of Non-Anechoic Antenna Measurements using Low-Pass Filters

  Publikacja

  • A. Bekasiewicz
  • V. Waladi
  • M. Wójcikowski
  • T. Cao

  - Rok 2023

  Prototype measurements belong to key steps in the development of antenna structures. They are normally performed in expensive facilities, such as anechoic chambers (ACs). Alternatively, antenna performance can be extracted (at a low cost) in non-anechoic conditions upon appropriate post-processing. Unfortunately, existing correction algorithms are difficult to set up and prone to failure, which limits their practical usefulness....

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• Mountain pass type periodic solutions for Euler–Lagrange equations in anisotropic Orlicz–Sobolev space

  Publikacja

  • M. Chmara
  • J. Maksymiuk

  - JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS - Rok 2019

  Using the Mountain Pass Theorem, we establish the existence of periodic solution for Euler–Lagrange equation. Lagrangian consists of kinetic part (an anisotropic G-function), potential part and a forcing term. We consider two situations: G satisfying at infinity and globally. We give conditions on the growth of the potential near zero for both situations.

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• Representativity of ISO test track surface based on controlled pass-by measurements

  Publikacja

  • T. Berge
  • P. Mioduszewski

  - Rok 2023

  Within the Polish-Norwegian research project ELANORE, a limited Round Robin Test has been performed on four ISO tracks in Northern Europe. The basic objective of the project is to improve the EU directive on labelling of tyres for noise and rolling resistance. This directive is based on the measurement procedures proscribed in the UNECE Reg.117. Measurements on 3 ISO tracks were performed in 2021 and presented at InterNoise 2022....

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• First Amendment Studies

  Czasopisma

  ISSN: 2168-9725

• Method of Skeletal System Modelling

  Publikacja

  • H. Olszewski
  • W. Wojnicz
  • E. Wittbrodt

  - Archive of Mechanical Engineering - Rok 2013

  An original method of skeletal system modelling is presented in detail. Using DICOM images obtained from CT and PET tests, shell models of nine bones were created (humerus, radius, ulna, scapula, clavicle, femur, tibia, fibula, pelvis). Two methods of bone behaviour are also proposed, the first method treating the bone as a solid structure and the second method treating the bone as a complex porous structure. The behaviour of model...

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• FIRST DEGREE FINAL PROJECT [2020/21]

  Kursy Online

  • M. Łuszczek

• Business process modelling

  Kursy Online

  • M. Grzesiak

• Business process modelling

  Kursy Online

  • M. Grzesiak

  Welcome to the Business Process Modeling course! We will travel together among the business processes world and its modeling with the BPMN ;) I hope it will be valuable for your future. See you soon, Marzena Grzesiak

• The method of measuring the energy pass-band of a communication receiver

  Publikacja

  • K. Korczak
  • B. Pałczyńska
  • L. Spiralski

  - Rok 2005

  Przedstawiono metodę wyznaczania energetycznego pasma odbiornika radiokomunikacyjnego na podstawie charakterystyki gęstości widmowej mocy szumów własnych na wyjściu odbiornika. Podano numeryczny estymator tego pasma. Wyprowadzono zależności na złożoną niepewność standardową wyznaczania szerokości pasma energetycznego odbiornika.

• A 0.5 V Nanowatt Biquadratic Low-Pass Filter with Tunable Quality Factor for Electronic Cochlea Applications

  Publikacja

  • J. Jakusz
  • W. Jendernalik

  - Electronics - Rok 2024

  A novel implementation of an analogue low-power, second-order, low-pass filter with tunable quality factor (Q) is presented and discussed. The filter feature is a relatively simple, buffer-based, circuit network consisting of eleven transistors operating in a subthreshold region. Q tuning is accomplished by injecting direct current into a network node, which changes the output resistance of the transistors and, as a result, modifies...

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• Integrated membrane bioreactors modelling: A review on new comprehensive modelling framework

  Publikacja

  • J. Mąkinia
  • G. Mannina
  • M. Alliet
  • C. Brepols
  • J. Comas
  • J. Harmand
  • M. Heran
  • N. Kalboussi
  • Á. Robles
  • F. T. Rebouças... i 5 innych

  - BIORESOURCE TECHNOLOGY - Rok 2021

  Integrated Membrane Bioreactor (MBR) models, combination of biological and physical models, have been representing powerful tools for the accomplishment of high environmental sustainability. This paper, produced by the International Water Association (IWA) Task Group on Membrane Modelling and Control, reviews the state-of-the-art, identifying gaps for future researches, and proposes a new integrated MBR modelling framework. In...

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• Development of HFB with the Use of 2nd Order Pass-Band Filters

  Publikacja

  • Z. Swietach
  • B. Szlachetko

  - Rok 2023

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• Frequency-dependent coupling model for microwave band-pass filter

  Publikacja

  • A. Jędrzejewski
  • Ł. Szydłowski

  - Zeszyty Naukowe Wydziału ETI Politechniki Gdańskiej. Technologie Informacyjne - Rok 2011

  The goal of this work was to create a circuit model which represents frequency-dependent coupling between microwave resonators. Our models are designed for in-line filters. The frequency-dependent coupling enables one to realize a transmission zero which is not possible in classical approach with frequency independent inverters. In addition, the proposed model allows us to observe out-of-band behavior, e.g. spurious resonance....

• ESAIM-MATHEMATICAL MODELLING AND NUMERICAL ANALYSIS-MODELISATION MATHEMATIQUE ET ANALYSE NUMERIQUE

  Czasopisma

  ISSN: 2822-7840 , eISSN: 2804-7214

• Mode choice modelling for urban areas

  Publikacja

  • K. Birr

  - Czasopismo Techniczne - Rok 2018

  The article presents the question of mode choice modelling in a four-stage travel modelling process. The article indicates limitations of currently used simplified methods of mode choice modelling and presents the possibility of using a more detailed approach that accounts for additional, statistically significant factors with the use of advanced mathematical tools, discrete choice models. A need has also been identified to include...

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• First World War Studies

  Czasopisma

  ISSN: 1947-5020

• Influence of PWHT Parameters on the Mechanical Properties and Microstructural Behavior of Multi-Pass GTAW Joints of P92 Steel

  Publikacja

  • S. Sirohi
  • A. Kumar
  • S. Soni
  • G. Dak
  • S. Kumar
  • A. Świerczyńska
  • G. Rogalski
  • D. Fydrych
  • C. Pandey

  - Materials - Rok 2022

  The 9% Cr steels were developed for ultra-supercritical (USC) power plants to meet the requirements of high operating temperature and pressure. These steels are produced to operate at high temperatures where impact toughness is not a concern; however, it becomes important for the welded joints to have good impact toughness at room temperature for manufacturing. The present work investigates the effect of the post-weld heat treatment...

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• Simplified Distribution Grid Modelling for Connection Analyses

  Publikacja

  • P. Bućko
  • J. Buriak
  • K. Dobrzyński
  • M. Jaskólski
  • P. Skoczko
  • P. Zieliński

  - Acta Energetica - Rok 2016

  This paper considers the modelling of medium and low voltage grids for the purpose of connection studies by distribution grid operators. Possible simplifications in grid modelling are discussed, which are acceptable from the viewpoint of the final result. The main driver of the modelling simplification is the MS Excel environment used as the computation platform, and the limitation of time for grid modelling.

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• Numerical modelling of 3D printout using line (1D) elements

  Publikacja

  • K. Bobrowski
  • W. Wojnicz
  • K. Lipiński

  - Rok 2017

  A proposition of some numerical modelling of the 3D printout is presented in the paper. The proposed model is composed of some 1D elements. The resulting numerical model of the infill consist of beam, spring and rigid elements. Obtained results confirm correctness of the proposed modelling method. Two methods of estimation of the spring parameters are proposed in the paper. In the first method, mechanical properties of the connecting...

• PHYSICAL MODELLING OF GEOTECHNICAL STRUCTURES IN PORTS AND OFFSHORE

  Publikacja

  • L. Bałachowski

  - Polish Maritime Research - Rok 2017

  The physical modelling of subsoil behaviour and soil-structure interaction is essential for the proper design of offshore structures and port infrastructure. A brief introduction to such modelling of geoengineering problems is presented and some methods and experimental devices are described. The relationships between modelling scales are given. Some examples of penetration testing results in centrifuge and calibration chamber...

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• JOURNAL OF MOLECULAR GRAPHICS & MODELLING

  Czasopisma

  ISSN: 1093-3263 , eISSN: 1873-4243

• Sensitivity performance of all pole canonical low pass GmC filters.

  Publikacja

  • S. Kozieł
  • S. Szczepański

  - Bulletin of the Polish Academy of Sciences-Technical Sciences - Rok 2002

  W pracy badano własności częstotliwościowe kanonicznych filtrów dolnoprzepustowych GmC bez zer transmisyjnych. Przedstawiono ogólną strukturę kanonicznego filtru dolnoprzepustowego i jej opis macierzowy. Wyprowadzono ogólne wzory określające funkcje wrażliwościowe filtru. Dokonano porównania struktur do 10-go rzędu włącznie dla aproksymacji Butterwortha, Czebyshewa i Bessela.

• Modelling in machine design (PG_00057377)

  Kursy Online

  • M. Wasilczuk

  goal of the subject is to show how simple enginnering models reflect the reality and how contemporary FEM calulations can illustrate the operation of machine elements

• Electronic transition dipole moment functions of the first singlet Delta gerade and first triplet Delta ungerade states of the Lithium dimer

  Dane Badawcze

  open access

  • P. Jasik
  • J. Sienkiewicz

  - seria: Electronic transition dipole moment functions of the Lithium dimer

  Electronic transition dipole moment functions (ETDMF) of the first singlet Delta gerade (1sDg) and first triplet Delta ungerade (1tDu) states have been calculated for the Lithium dimer. ETDMFs are needed in understanding processes like photodissociation, photoassociation, cooling, and trapping of molecules. The results of the four ETDMFs have been obtained...

• Electronic transition dipole moment functions of the first singlet Pi gerade and first triplet Pi gerade states of the Lithium dimer

  Dane Badawcze

  open access

  • P. Jasik
  • J. Sienkiewicz

  - seria: Electronic transition dipole moment functions of the Lithium dimer

  Electronic transition dipole moment functions (ETDMF) of the first singlet Pi gerade (1sPg) and first triplet Pi gerade (1tPg) states have been calculated for the Lithium dimer. ETDMFs are needed in understanding processes like photodissociation, photoassociation, cooling, and trapping of molecules. The results of the four ETDMFs have been obtained...

• ECONOMIC MODELLING

  Czasopisma

  ISSN: 0264-9993 , eISSN: 1873-6122

• STATISTICAL MODELLING

  Czasopisma

  ISSN: 1471-082X , eISSN: 1477-0342

• Brief Announcement: Energy Constrained Depth First Search

  Publikacja

  • D. Shantanu
  • D. Dereniowski
  • P. Uznański

  - Rok 2018

  Depth first search is a natural algorithmic technique for constructing a closed route that visits all vertices of a graph. The length of such route equals, in an edge-weighted tree, twice the total weight of all edges of the tree and this is asymptotically optimal over all exploration strategies. This paper considers a variant of such search strategies where the length of each route is bounded by a positive integer B (e.g. due...

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• Mathematical and numerical modelling, L, IDE, sem. 01, summer 21/22,(M:00057379)

  Kursy Online

  • K. J. Kaliński

  Modelling. Optimal control. Modal analysis. High speed milling. Mechatronic design.