Search results for: electrical installations measurements

• Measurements of passive components using of an IEEE 1149.4 mixed-signal test bus

  Publication

  • B. Bartosiński

  - Year 2005

  W pracy przedstawiono wyniki badań nad wykorzystaniem magistrali testującej mieszanej sygnałowo IEEE 1149.4 do pomiarów elementów pasywnych zamontowanych na pakietach elektronicznych. Do badań użyto wyposażonych w magistralę układów scalonych typu STA400. Zaprezentowano metody pomiaru rezystancji pojedynczych elementów z wykorzystaniem źródła prądowego oraz źródła VH znajdującego się w analogowych modułach ABM układu STA400. Pokazano...

• Application of fuzzy neural network for supporting measurements and control in a wastewater treatment plant

  Publication

  • Z. Skowroński
  • K. Skowrońska
  • M. Biziuk

  - CHEMIA ANALITYCZNA - Year 2006

  Oczyszczanie ścieków jest jednym z ważniejszych aspektów ochrony środowiska. Nowoczesne systemy kontroli w oczyszczalniach ścieków pozwalają na poprawę jakości procesu oczyszczania redukując jednocześnie koszty. Systemy kontroli i optymalizacji jakie odkilku lat opracowuje się dla oczyszczalni ścieków, bazują zazwyczaj na skomplikowanych modelach matematycznych. Kluczowym problemem w zastosowaniu tych systemów jest duża liczba...

• Developing electrochemical measurements in order to assess anti-corrosive coatings more effectively

  Publication

  • D. J. Mills
  • S. Jamali
  • M. Tobiszewski

  - PROGRESS IN ORGANIC COATINGS - Year 2012

  Celem pracy było sprawdzenie powtarzalności wyników uzyskanych metodą pomiaru szumu (Electrochemical Noise method - ENM) elektrochemicznego wykonanych na powłokach organicznych w konfiguracji bez połączenia z podłożem metalowym (NOCS - No Connection to the Substrate). NOCS polega na wykonaniu pomiarów na trzech teoretycznie takich samych obszarach badanego układu. W takim układzie nie jest wymagane połączenie elektryczne z metalowym...

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• Adjusted subpixel method enables optimisation of bronchial measurements in high-resolution CT

  Publication

  • G. Mincewicz
  • A. Aloszko
  • J. Rumiński
  • G. Krzykowski

  - BRITISH JOURNAL OF RADIOLOGY - Year 2012

  Artykuł przedstawia metodę korekcji pomiaru rozmiaru oskrzeli w techice HRCT. W celu walidacji metody zastosowano fantom. W efekcie opracowano metodę nieliniowej predykcji rzeczywistych rozmiarów ścianek małych oskrzeli w obrazach HRCT.

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• Total electron-scattering cross section measurements for tetrahydropyran, (CH2)5O, molecules

  Publication

  • C. Szmytkowski
  • E. Ptasińska-Denga

  - JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS - Year 2011

  Zmierzono całkowity przekrój czynny (TCS) na rozproszenie elektronów na drobinach tetrahydropyranu. Pomiary przeprowadzono metodą transmisyjną w zakresie energii zderzenia 1 - 400 eV. Otrzymana zależność energetyczna TCS wskazuje na obecność procesów rezonansowych w zakresie 3 - 15 eV. Wyniki porównano z całkowitymi przekrojami czynnymi dla drobin tetrahydrofuranu i alkoholu alfa-tetrahydrofurfurylowego.

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• Composite Sandwich Footbridge – Numerical ESL FEM Calculations vs. In Situ Measurements

  Publication

  • M. Miśkiewicz
  • J. Chróścielewski
  • B. Sobczyk
  • Ł. Pyrzowski

  - Engineering Transactions - Year 2017

  Selected results of the static analysis of composite sandwich footbridge with the corresponding in situ measured values are compared in the paper. The analysed bridge is a research object, which was built in 2015 and is currently located at the Gdańsk University of Technology campus. Since it is a novel structure, a proper definition of the bridge numerical model, allowing its safe design, is very important. Therefore, instead...

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• The process of identification of the track's geometrical layout and the alignment project based on the of satellite measurements

  Publication

  • W. Koc
  • P. Chrostowski
  • K. Palikowska

  - Year 2015

  In the paper a methodology of restoring of railway track’s geometrical shape in a horizontal plane on the base of conducted mobile satellite surveying was presented. The authors proposed a calculating algorithm for designing the track sections placed in horizontal arcs. In the algorithm an analytical methodology with mathematical formulas is applied. The procedure has an universal character, i.e. provides the possibility of varying...

• Particle Image Velocimetry Measurements of Airflow in Electrohydrodynamic Device for Dust Particle Collection

  Publication

  • J. Podliński
  • A. Berendt
  • J. Mizeraczyk

  - Year 2012

  In this paper the electrohydrodynamic (EHD)device for gas pumping and cleaning is presented. To induce an airflow in this EHD device corona discharge was used. The discharge was generated between the one-sided spike electrodes and the plate electrodes. An asymmetric electric field and generated discharge result in unidirectional gas flow through the EHD device. The current-voltage characteristics were measured and the corona discharge...

• Space vector modulation in multilevel inverters of the servo drives of the trajectory measurements telescopes

  Publication

  • V. Tomasov
  • A. Usoltsev
  • D. Vertegel
  • R. Strzelecki

  - Izvestiya vysshikh uchebnykh zavedeniy. Priborostroenie - Year 2017

  Using the MatLab/Simulink mathematical model of a three-phase three-level voltage inverter, the influence of the space-vector modulation (SVM) algorithm on the pulsations of the current (torque) of an AC motor in the range of low rotation speeds is considered. It is shown that the SVM of the second kind does not provide a pulsations level comparable to the pulsations of a sinusoidal pulse-width modulation (SPWM), both in the static...

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• Efficient three-dimensional fluorescence measurements for characterization of binding properties in some plants

  Publication

  • Y. Ku
  • J. Bae
  • A. L. Martinez-Ayala
  • S. Vearasilp
  • J. Namieśnik
  • P. Pasko
  • E. Katrich
  • S. Gorinstein

  - SENSORS AND ACTUATORS B-CHEMICAL - Year 2017

  The main aim of this research was to characterize some plants and to determine their similarities and differences, using spectroscopic methods. The interactions of soluble polyphenols of different plants with human serum albumin (HSA) were investigated by 3D-fluorescence. The obtained fluorescence results allow to classify the investigated plants according to their binding properties. The HSA-binding capacities of these plants...

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• Measurements and calculations of the width of the fracture process zones on the surface of notched concrete beams

  Publication

  • Ł. Skarżyński
  • E. Korol
  • J. Tejchman

  - JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN - Year 2011

  Artykuł omawia wyniki pomiaru i analizy numerycznej szerokości strefy pękania w belkach betonowych z nacięciem. Do pomiarów zastosowano metodę DIC. Do symulacji zastosowano model sprężysto - plastyczny i model z degradacją sztywności. Oba modele zostały rozszerzone o nielokalne osłabienie. Wyniki symulacji porównano z doświadczeniami.

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• Transmission measurements between two geometrically small Vivaldi antennas performed in non-anechoic propagation conditions

  Open Research Data

  open access

  • M. Dzwonkowski
  • V. Waladi
  • A. Bekasiewicz

  The dataset contains unprocessed measurements of complex transmission (and reflection) characteristics obtained in non-anechoic regime for a geometrically small, broadband spline-parameterized Vivaldi structure. The measurement setup comprises two Vivaldi antennas with the same topology where one is used as a reference structure, and another one as...

• Determining the Seasonal Variability of the Territorial Sea Baseline in Poland (2018–2020) Using Integrated USV/GNSS/SBES Measurements

  Publication

  • M. Specht
  • C. Specht
  • A. Stateczny
  • Ł. Marchel
  • O. Lewicka
  • M. Paliszewska-Mojsiuk
  • M. Wiśniewska

  - ENERGIES - Year 2021

  The Territorial Sea Baseline (TSB) allows coastal states to define the maritime boundaries, such as: contiguous zone, continental shelf, exclusive economic zone and territorial sea. Their delimitations determine what rights (jurisdiction and sovereignty) a given coastal state is entitled to. For many years, the problem of delimiting baseline was considered in two aspects: legal (lack of clear-cut regulations and different interpretations)...

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• The influence of the distance of the pyrometer from the surface of the radiating object on the accuracy of measurements

  Open Research Data

  version 2.0 open access

  • A. Mroziński

  During the COVID-19 epidemic, non-contact body temperature measurement has become very important. This dataset contain results of measurements of the four professional commercially available pyrometers. The CHY 314P, TM-F03B, TFA 31.1125 and Abatronic AB-8855 where tested in function of measuring distance from the surface of the radiating black body....

• Measurements of Dispersed Phase Velocity in Two-Phase Flows in Pipelines Using Gamma-Absorption Technique and Phase of the Cross-Spectral Density Function

  Publication

  • R. Hanus
  • M. Zych
  • A. Golijanek-Jędrzejczyk

  - ENERGIES - Year 2022

  This paper concerns the application of the gamma radiation absorption method in the measurements of dispersed phase velocity in two-phase flows: liquid–gas flow in a horizontal pipe- line and liquid–solid particles in a vertical pipe. Radiometric sets containing two linear 241Am gamma radiation sources and two NaI(Tl) scintillation detectors were used in the research. Due to the stochastic nature of the signals obtained from the...

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• Improvement of time difference of arrival measurements resolution by using fractional delay filters in a direct sequence-code division multiple access radionavigation system

  Publication

  • J. Sadowski

  - IET Radar Sonar and Navigation - Year 2015

  This study presents a method of improving time measurements resolution in a direct sequence-code division multiple access receiver by using a fine code tracking loop based on fractional delay filtering of a despreading sequence. It briefly describes the structure of a generic digital code tracking loop and the proposed modification which allows to measure time difference of arrival values with the subsample resolution, together...

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• The voltage on bus bars of the main switchboard of the car carrier electrical power system at sea trials during a sea voyage

  Open Research Data

  open access

  • B. Pałczyńska
  • T. Tarasiuk

  The dataset is part of the research results on the quality of supply voltage on bus bars of the main switchboard of the ship's electrical power system in different states of ship exploitation. The attached dataset contains the measurement results conducted onboard the car carrier at sea trials. The data were recorded during a sea voyage, under normal...

• International Journal of Electrical and Computer Engineering Systems

  Journals

  ISSN: 1847-6996 , eISSN: 1847-7003

• ENGINEERING INTELLIGENT SYSTEMS FOR ELECTRICAL ENGINEERING AND COMMUNICATIONS

  Journals

  ISSN: 2085-6830

• Istanbul University-Journal of Electrical and Electronics Engineering

  Journals

  ISSN: 1303-0914

• Periodica polytechnica Electrical engineering and computer science

  Journals

  ISSN: 2064-5260

• Indonesian Journal of Electrical Engineering and Computer Science

  Journals

  ISSN: 2502-4752

• International Journal of Electrical and Electronic Engineering and Telecommunications

  Journals

  eISSN: 2319-2518

• Transactions of the South African Institute of Electrical Engineers

  Journals

  ISSN: 0038-2221

• Journal of Mechatronics, Electrical Power, and Vehicular Technology

  Journals

  ISSN: 2087-3379 , eISSN: 2088-6985

• Turkish Journal of Electrical Engineering and Computer Sciences

  Journals

  ISSN: 1300-0632 , eISSN: 1303-6203

• Electrical responses of nanostructured ZrS3 as field-effect transistor for nitrogen dioxide, ethanol, and acetone detection enhanced by visible light

  Open Research Data

  open access

  • K. Drozdowska
  • J. Smulko

  Small-area layers of nanostructured ZrS3 were fabricated and measured in the field-effect transistor configuration. Irradiation with visible light enabled generating photocurrent and increasing the sensitivity to selected ambient gases: nitrogen dioxide, ethanol, and acetone. The data set consists of electrical responses (current vs. voltage characteristics...

• Selected results of signal measurements in a ship power station with two generators working in parallel with the use of the Estimator/Analyzer instrument

  Open Research Data

  open access

  • R. Maśnicki
  • D. Hallmann
  • J. Mindykowski
  • T. Tarasiuk
  • M. Górniak
  • M. Szweda
  • B. Pałczyńska

  The presented dataset is part of research focusing on the assessment of metrological properties of the instrument,  Estimator/ Analyser (A/E v.2),  developed and made at the Faculty of Electrical Engineering, Department of Marine Electrical Power Engineering, of Gdynia Maritime University. The instrument performs a set of measurement functions that...

• The AFM topographic measurements of the surface heterogeneity of iron hexacyanoferrate on a steel surface

  Open Research Data

  open access

  • A. Zieliński
  • J. Ryl

  - series: Scanning Probe Microscopies data

  Measurements in semi-contact mode. NTEGRA Prima (NT-MDT) device. NSG 01 probe.

• Concrete temperature measurements of cubic specimens cured under isothermal and semi-adiabatic conditions

  Open Research Data

  embargo

  • A. Kuryłowicz-Cudowska

  The DataSet contains temperature measurements of concrete cubes (150 x 150 x 150 mm) cured under isothermal and semi-adiabatic conditions. The specimens were moulded from six types of concrete mixtures produced in the laboratory conditions. Mix #1: Portland cement CEM I 42.5R and gravel aggregate, mix #2: CEM I 42.5R and  basalt aggregate, mix#3: Portland-composite...

• Luminescence and FTIR measurements of B2O3-Bi2O3-SrF2 glass and glass-ceramics doped with Eu3+ ions

  Open Research Data

  open access

  • K. Milewska
  • M. Maciejewski
  • A. Synak
  • M. Łapiński
  • W. Sadowski
  • B. Kościelska

  Luminescence and FTIR measurements of B2O3-Bi2O3-xSrF2+2Eu (x=10,20) glass and glass-ceramics. The emission and excitation spectra of the samples depend on the composition and annealing time.

• <title>Nonlinear glasses and metaglasses for photonics, a review: Part I. Nonlinear electrical susceptibility and refractive index</title>

  Publication

  • R. Romaniuk
  • R. S. Romaniuk

  - Year 2007

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• The Influence of Permanent Magnet Length and Magnet Type on Flux-control of Axial Flux Hybrid Excited Electrical Machine

  Publication

  • P. Paplicki
  • P. Prajzendanc

  - Year 2018

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• Electrical conductivity and superconductivity in (Bi-Pb)-Sr-Ca-Cu-O glassceramics during the first minutes of crystallisation.

  Publication

  • M. Gazda
  • B. Kusz
  • S. Chudinov
  • S. Stizza
  • R. Natali

  - PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS - Year 2003

  (Bi0.8Pb0.2)4Sr3Ca3Cu4Ox częściowo skrystalizowane próbki otrzymano poprzez wygrzewanie szkła w temperaturze między 700st.C i 870st.C przez krótki czas.Pomiary temperaturowej zależności oporności przeprowadzono metodą 4-punktową w temperaturze od 3K do 300K. Przeprowadzono również pomiary przewodności w czasie trwania wygrzewania. Stwierdzono, że w czasie wygrzewania następuje stopniowa zmiana mechanizmu przewodnictwa. Niektóre...

• Characterization of Optical and Electrical Properties of Transparent Conductive Boron-Doped Diamond thin Films Grown on Fused Silica

  Publication

  • R. Bogdanowicz

  - Metrology and Measurement Systems - Year 2014

  A conductive boron-doped diamond (BDD) grown on a fused silica/quartz has been investigated. Diamond thin films were deposited by the microwave plasma enhanced chemical vapor deposition (MW PECVD). The main parameters of the BDD synthesis, i.e. the methane admixture and the substrate temperature were investigated in detail. Preliminary studies of optical properties were performed to qualify an optimal CVD synthesis and film parameters...

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• Optical and electrical properties of boron doped diamond thin conductive films deposited on fused silica glass substrates

  Publication

  • M. Ficek
  • M. Sobaszek
  • M. Gnyba
  • J. Ryl
  • Ł. Gołuński
  • M. Śmietana
  • J. Jasiński
  • P. Caban
  • R. Bogdanowicz

  - APPLIED SURFACE SCIENCE - Year 2016

  This paper presents boron-doped diamond (BDD) film as a conductive coating for optical and electronic purposes. Seeding and growth processes of thin diamond films on fused silica have been investigated. Growth processes of thin diamond films on fused silica were investigated at various boron doping level and methane admixture. Two step pre-treatment procedure of fused silica substrate was applied to achieve high seeding density....

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• Dual Active Bridge (DAB) DC-DC converter for multilevel propulsion converters for electrical multiple units (EMU)

  Publication

  • M. Adamowicz
  • Z. Krzemiński
  • P. Stec

  - Year 2018

  Semiconductor power devices made from silicon carbide (SiC) reached a level of technology enabling their widespread use in power converters. Two different approaches to implementation of modern traction converters in electric multiple units (EMU) have been presented in recent years: (i) 3.3-kV SiC MOSFET-based three-level PWM inverter with regenerative braking and (ii) 6.5-kV IGBT-based four-quadrant power electronic traction transformer...

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• Unravelling the role of electron–hole pair spin in exciton dissociation in squaraine-based organic solar cells by magneto-photocurrent measurements

  Publication

  • M. Klein
  • S. Majumdar
  • P. Zassowski
  • W. Stampor

  - Journal of Materials Chemistry C - Year 2018

  A high absorption coefficient and narrow absorption bands in squaraine (SQ) dyes have resulted in rapidly growing interest in them as a donor material in photovoltaic devices. The exciton dissociation process in organic systems proceeds via a multistep mechanism where the electron–hole pairs (charge transfer states) involved in the current generation process determine the recombination losses and subsequently limit the overall...

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• Measurements of the heat of hydration released by concrete specimens cured under adiabatic conditions

  Open Research Data

  embargo

  • A. Kuryłowicz-Cudowska

  The DataSet contains measurements of heat of hydartion of concrete cubes (150 x 150 x 150 mm) cured under adiabatic conditions. The specimens were moulded from six types of concrete mixtures produced in the laboratory conditions. Mix #1: Portland cement CEM I 42.5R and gravel aggregate, mix #2: CEM I 42.5R and  basalt aggregate, mix#3: Portland-composite...

• Muhammad Jamshed Abbass Phd in Electrical Engineering

  People

  Muhammad Jamshed Abbass received the M.S. degree in electrical engineering from Riphah International University, Islamabad. He is currently pursuing the Ph.D. degree with the Wrocław University of Science and Technology, Wroclaw, Poland. His research interests include machine learning, voltage stability within power systems, control design, analysis, the modeling of electrical power systems, the integration of numerous decentralized...

• Inverse determination of sliding surface temperature based on measurements by thermocouples with account of their thermal inertia

  Publication

  • O. Nosko
  • Y. Tsybrii

  - TRIBOLOGY INTERNATIONAL - Year 2021

  This study developed an inverse heat conduction algorithm to determine temperature at a sliding surface taking account of thermocouple thermal inertia. The direct heat conduction problem was solved analytically based on the Laplace integral transform approach. The inverse algorithm was applied to the problem of friction of a brake material against a steel. The experiments were conducted on a pin-on-disc tribometer for three short-time...

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• Signals Features Extraction in Radioisotope Liquid-Gas Flow Measurements using Autocorrelation Function

  Publication

  • R. Hanus
  • M. Zych
  • A. Golijanek-Jędrzejczyk

  - Year 2022

  Knowledge of the two-phase flow structure is essential for the proper conduct of industrial processes. Description of liquid-gas flow regimes is possible by using of data analysis in time, frequency, or state-space domain. In this research studies, the autocorrelation function is applied for analysis of signals obtained for liquid-gas flow by use gamma-ray absorption. The experiments were carried out on the laboratory hydraulic...

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• Application of fourier series to determine the measurements error of harmonics with selected power quality analyzers

  Publication

  • P. Otomaeski
  • P. Kuwalek
  • P. Kuwałek

  - Year 2017

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• Laboratory measurements of remote sensing reflectance of selected phytoplankton species from the Baltic Sea

  Publication

  • M. Soja-Woźniak
  • M. Darecki
  • B. Wojtasiewicz
  • K. Bradtke

  - Oceanologia - Year 2018

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• Localized impedance measurements of AA2024 and AA2024‐T3 performed by means of AFM in contact mode

  Publication

  • A. Arutunow
  • A. Zieliński
  • M. Tobiszewski

  - ANTI-CORROSION METHODS AND MATERIALS - Year 2013

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• The use of liquid crystal thermography and particle image velocimetry in the exploration of heat transfer measurements

  Publication

  • J. Stąsiek
  • T. A. Kowalewski

  - Year 2009

  Artykuł dotyczy badań eksperymentalnych wymiany ciepła w modelowym wymienniku ciepła z turbulizatorami przepływu przy użyciu termografii ciekłokrystalicznej i cyfrowej anemometrii obrazowej.

• Implementation and Validation of Multisinusoidal, Fast Impedance Measurements in Atomic Force Microscope Contact Mode

  Publication

  • A. Zieliński
  • K. Darowicki

  - MICROSCOPY AND MICROANALYSIS - Year 2014

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• Integrated geodetic and hydrographic measurements of the yacht port for nautical charts and dynamic spatial presentation

  Publication

  • A. Makar
  • C. Specht
  • M. Specht
  • P. S. Dąbrowski
  • M. Szafran

  - Geosciences - Year 2020

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• Study on the Positioning Accuracy of the GNSS/INS System Supported by the RTK Receiver for Railway Measurements

  Publication

  • M. Specht
  • C. Specht
  • A. Stateczny
  • P. Burdziakowski
  • P. S. Dąbrowski
  • O. Lewicka

  - ENERGIES - Year 2022

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• Computer graphics toos application for visualsation of measurements results of ship hull sections and blocks.

  Publication

  • A. Kniat

  - Year 2004

  Opisano zakres minimalnych wymagań dla programu komputerowego, służącego do wizualizacji wyników pomiarów sekcji i bloków kadłuba okrętowego. Przedstawiono sposób przenoszenia danych z urządzenia pomiarowego do programu i pokazano przykłady pomiarów wykonanych na sekcjach zbudowanych w Stoczni Gdynia S.A.