Search results for: hybrid localization system

• The sun tracking photovoltaic system in Northern Poland

  Publication

  • E. Klugmann-Radziemska
  • P. Meler
  • K. Bąk

  - Year 2006

  Prezentowana fotowoltaiczna instalacja nadążna została umieszczona na dachu budynku Wydziału Chemicznego Politechniki Gdańskiej i składa się z czterech modułów: systemu PV, układu komputerowej kontroli położenia, stacji meteorologicznej, umożliwiającej analizę wpływu warunków atmosferycznych (prędkości i kierunku wiatru, temperatury powietrza, nasłonecznienia) na parametry pracy modułów fotowoltaicznych oraz komputerowego systemu...

• A two-plasmid Escherichia coli system for expression of Dr adhesins

  Publication

  • M. Kur
  • R. Piątek
  • J. Kur

  - PROTEIN EXPRESSION AND PURIFICATION - Year 2007

  Praca opisuje konstrukcję wydajnego systemu produkcji fimbrii Dr. System składa się z dwóch plazmidów. Plazmid pACYCpBAD-DraC-C-His zawiera pod kontrolą promotora arabinozowego gen draC kodujący białko kanałotwórcze DraC. Plazmid pET-30b-sygDraBE zawiera pod kontrolą promotora T7lac geny draB i draE kodujące odpowiednio białko opiekuńcze DraB oraz adhezynę DraE. Oba plzamidy posiadają różne ori replikacji co pozwala na ich jednoczesne...

• An automatic system for identification of random telegraph signal (RTS) noise in noise signals

  Publication

  • B. Stawarz-Graczyk
  • D. Załęski
  • A. Konczakowska

  - Metrology and Measurement Systems - Year 2007

  In the paper the automatic and universal system for identification of Random Telegraph Signal (RTS) noise as a non-Gaussian component of the inherent noise signal of semiconductor devices is presented. The system for data acquisition and processing is described. Histograms of the instantaneous values of the noise signals are calculated as the basis for analysis of the noise signal to determine the number of local maxima of histograms...

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• A picocellular UMTS/TDD overlay on GSM system for indoor environment

  Publication

  • D. Rutkowski
  • P. Kaczorek

  - Year 2006

  W pracy przedstawiono nakładkę CDMA na system GSM. Nakładka użytkuje system UMTS w trybie TDD i jest przeznaczona do funkcjonowania wewnątrz budynków w obszarze makrokomórki systemu GSM. Wyniki badań przedstawione w pracy ukazują znaczny wzrost efektywności wykorzystania tego samego pasma przez oba systemy i uzyskanie znacznej pojemności dla nakładki bez degradacji pracy systemu GSM

• Projekt badawczy BRIK: Opracowanie innowacyjnej metody wyznaczania precyzyjnej trajektorii pojazdu szynowego

  Publication

  • A. Wilk
  • C. Specht
  • W. Koc
  • K. Karwowski
  • P. Chrostowski
  • J. Szmagliński
  • P. Dąbrowski
  • M. Specht
  • S. Judek
  • J. Skibicki... and 2 others

  - Przegląd Komunikacyjny - Year 2019

  W artykule przedstawiono podstawowe informacje dotyczące projektu badawczego realizowanego na zlecenie Narodowego Centrum Badań i Rozwoju oraz Spółki PKP Polskie Linie Kolejowe S. A. przez Konsorcjum Politechniki Gdańskiej i Uniwersytetu Morskiego w Gdyni. Projekt obejmuje wykorzystanie nowoczesnych metod pomiarowych, takich jak techniki pozycjonowania satelitarnego GNSS, pomiary inercyjne INS oraz skaning laserowy LS, w procesie...

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• Evaluation of sound event detection, classification and localization in the presence of background noise for acoustic surveillance of hazardous situations

  Publication

  • K. Łopatka
  • J. Kotus
  • A. Czyżewski

  - Year 2014

  An evaluation of the sound event detection, classification and localization of hazardous acoustic events in the presence of background noise of different types and changing intensities is presented. The methods for separating foreground events from the acoustic background are introduced. The classifier, based on a Support Vector Machine algorithm, is described. The set of features and samples used for the training of the classifier...

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• Calibration-Free Single-Anchor Indoor Localization Using an ESPAR Antenna

  Publication

  • M. Groth
  • K. Nyka
  • Ł. Kulas

  - SENSORS - Year 2021

  In this paper, we present a novel, low-cost approach to indoor localization that is capable of performing localization processes in real indoor environments and does not require calibration or recalibration procedures. To this end, we propose a single-anchor architecture and design based on an electronically steerable parasitic array radiator (ESPAR) antenna and Nordic Semiconductor nRF52840 utilizing Bluetooth Low Energy (BLE)...

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• The Web Based System for Recording and Analysing Different Kinds o Negotiations

  Publication

  • M. Piotrowski
  • B. Krawczyk-Bryłka

  - Year 2006

  Negocjacje są podstawą wielu ludzkich przedsięwzięć. Artykuł opisuje internetowy system rejestracji i analizy wybranych elementów negocjacji. Przedstawiono też wybrane eksperymenty negocjacyjne i ich wyniki zebrane przy pomocy omawianego systemu.

• Ireneusz Czarnowski Prof.

  People

  IRENEUSZ CZARNOWSKI is a graduate of the Faculty of Electrical Engineering at Gdynia Maritime University. He gained a doctoral degree in the field of computer science at Poznan University of Technology and a postdoctoral degree in the field of computer science at Wroclaw University of Science and Technology. Since 1998 is associated with Gdynia Maritime University, currently is a professor of computer science in the Department...

• System identification

  e-Learning Courses

  • M. Niedźwiecki

  The course focusses on the problem of identification of dynamic systems.

• Innovative design of hybrid powered inland vessel

  Publication

  • K. Niklas
  • J. Kozak

  - Year 2013

  One of the most demanding task for European countries is rational transportation system taking into account fuel efficient and ecological propulsion. The paper presents innovative design of hybrid powered inland vessel. The most important aspects regarding new design and technical solutions are being presented, including numerical and experimental research on hull form. Combined diesel-electric propulsion supported by solar panel...

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• Portable computer diagnostics system PSD - the measurement potentiality and application examples

  Publication

  • K. Orłowski
  • R. Wasielewski

  - Year 2006

  Opisano system diagnostyczny do pomiarów statycznych i dynamicznych wszelkiego typu maszyn stosowanych w przemyśle drzewnym. ocena stanu maszyny może byc dokonywana na podstawie wyników pomiaru bicia osiowego i promieniowego wrzecion, pił tarczowych, przemieszczeń poprzecznych piły tasmowej itp.. System jest wyposażony w specjalne oprogramowanie i pozwala m. in. na przeprowadzanie szczegółowych analiz tj. wykonywanie FFT lub filtrowanie...

• The luminescence study of (C10H16N)2MnBr4 Organic–Inorganic Hybrid

  Open Research Data

  open access

  • N. Majewska
  • A. Lazarowska
  • S. Mahlik

  Organic–inorganic hybrid metal halides have recently attracted attention in the global research field for their bright light emission, tunable photoluminescence wavelength, and convenient synthesis method. This study reports the detailed properties of (C10H16N)2MnBr4, which emits bright green light with a high photoluminescence quantum yield. Results...

• Hybrid, Approximate Models of Distributed-Parameter Systems

  Publication

  • C. Orlikowski
  • R. Hein

  - Year 2010

  The paper introduces the method of distributed-parameter systems modelling. It enables to obtain low order modal model of the system that experiences Coriolis acceleration component and gyroscopic effect. In such cases, corresponding system equations are non-self-adjoined. To solve this problem modal reduced model is built up for the system without Coriolis acceleration or gyroscopic effect terms. These phenomena are next included...

• Multiple sound sources localization in real time using acoustic vector sensor

  Publication

  • J. Kotus

  - Communications in Computer and Information Science - Year 2012

  Method and preliminary results of multiple sound sources localization in real time using the acoustic vector sensor were presented in this study. Direction of arrival (DOA) for considered source was determined based on sound intensity method supported by Fourier analysis. Obtained spectrum components for considered signal allowed to determine the DOA value for the particular frequency independently. The accuracy of the developed...

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• Multiple sound sources localization in free field using acoustic vector sensor

  Publication

  • J. Kotus

  - MULTIMEDIA TOOLS AND APPLICATIONS - Year 2015

  Method and preliminary results of multiple sound sources localization in free field using the acoustic vector sensor were presented in this study. Direction of arrival (DOA) for considered source was determined based on sound intensity method supported by Fourier analysis. Obtained spectrum components for considered signal allowed to determine the DOA value for the particular frequency independently. The accuracy of the developed...

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• Metoda diagnostyki cieplno-przepływowej turbin parowych wykorzystująca elementy algorytmów genetycznych

  Publication

  • M. Drosińska-Komor

  - Year 2023

  Rozprawa doktorska poświęcona jest opisowi budowania metody diagnostyki cieplno-przepływowej z wykorzystaniem elementów algorytmów genetycznych. Do tworzenia założeń i algorytmów metody posłużono się przykładem funkcjonowania bloku elektrowni kondensacyjnej ze szczególnym uwzględnieniem układu łopatkowego turbiny parowej. Celem pracy jest zbudowanie metody diagnostyki cieplno-przepływowej. Zadaniem metody jest przeprowadzenie procesu...

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• Underwater acoustic communications system with error correction and synchronization coding

  Publication

  • I. Kochańska
  • H. Lasota
  • R. Salamon

  - Year 2006

  Niezawodna transmisja danych w wielodrogowym i niestacjonarnym płytkim kanale podwodnym wymaga zastosowania efektywnej techniki modulacji oraz equalizacji adaptacyjnej. W zaproponowanym artykule w systemie transmisji danych zastosowano modulację OFDM oraz equalizację adaptacyjną opartą o filtrację Kalmana. Ponadto zaimplementowano dwie techniki kodowania: FEC w celu eliminacji błędów transmisji oraz kodowanie pseudoszumowe, którego...

• A computer system for the complete design of ship propellers

  Publication

  • T. Koronowicz
  • J. Szantyr
  • P. Chaja

  - Archives of Civil and Mechanical Engineering - Year 2008

  Praca zawiera opis metody obliczeniowej pozwalającej na zaprojektowanie okrętowej śruby napędowej dla również obliczeniowo wyznaczonego niejednorodnego pola prędkości za kadłubem statku o znanej geometrii i parametrach ruchu. Metoda pozwala na właściwe ujęcie efektu skali i konsekwencji obecności płetwy sterowej za projektowaną śrubą.

• Archives of Transport System Telematics

  Journals

  ISSN: 1899-8208

• Hybrid piezoelectric motor based on electroactive lubrication principle

  Publication

  • R. Ryndzionek
  • Ł. Sienkiewicz
  • M. Ronkowski
  • J. Rouchon
  • D. Harribey
  • D. Tran

  - Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej. Studia i Materiały - Year 2012

  A novel conception of hybrid piezoelectric motor is presented in this paper. Proposed conception required synchronised work of quasi-static and resonant piezoelectric actuators that results in a rotary movement. The motor's working principle is explained and the main characteristics are described. Studied topology is compared to the existing piezoelectric motors with regards to its field of applications. The assembling process...

• Detection, classification and localization of acoustic events in the presence of background noise for acoustic surveillance of hazardous situations

  Publication

  • K. Łopatka
  • J. Kotus
  • A. Czyżewski

  - MULTIMEDIA TOOLS AND APPLICATIONS - Year 2016

  Evaluation of sound event detection, classification and localization of hazardous acoustic events in the presence of background noise of different types and changing intensities is presented. The methods for discerning between the events being in focus and the acoustic background are introduced. The classifier, based on a Support Vector Machine algorithm, is described. The set of features and samples used for the training of the...

  Full text available to download

• Enhancing Performance of Switched Parasitic Antenna for Localization in Wireless Sensor Networks

  Publication

  • M. Rzymowski
  • K. Nyka
  • Ł. Kulas

  - Year 2012

  This paper presents an Electronically Steerable Parasitic Array Radiator (ESPAR) antenna with enhanced performance of estimating the incoming signal direction. Designed antenna is dedicated for 2.4 GHz ISM applications with emphasis on Wireless Sensor Networks (WSN). The limitations of the existing design approach are illustrated, as well as perspectives and challenges of the proposed solution in relation to the localization in...

• Experimental tests of lintel hybrid beams

  Publication

  • K. Nagrodzka-Godycka
  • M. T. Solarczyk
  • M. Wesołowski

  - Year 2019

  The results of experimental tests of lintel hybrid beams made of air concrete and prestressed concrete were presented in paper. Blocks of air concrete was a protective element for the construction one. The length of hybrid beams was 3.0 m, while total height 27 cm. It was assumed that hybrid beams will work in the simply-supported scheme (with a 10 cm support) loaded uniformly over the entire length. The object of the tests were...

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• 50’ Sail Catamaran with Hybrid Propulsion, Design, Theoretical and Experimental Studies

  Publication

  • W. Litwin
  • D. Piątek
  • W. Leśniewski
  • K. M. Marszałkowski

  - Polish Maritime Research - Year 2022

  The development of modern lithium batteries and propulsion systems now allows the use of complex propulsion systems for vessels of various sizes. As part of the research and implementation project, a parallel hybrid drive system was designed, built and then tested in the laboratory. The experimental studies conducted allowed for the measurements of power, fuel consumption and electric power distribution in various operating modes...

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• Implementation Of The Innovative Radiolocalization System VCS-MLAT (Voice Communication System Multilateration)

  Publication

  • S. Wiszniewski
  • O. Błaszkiewicz
  • A. Olejniczak
  • J. Sadowski
  • J. Stefański

  - Year 2020

  In the article the concept of the radiolocalization subsystem of the VHF communication for aviation VCS-MLAT (Voice Communication System – Multilateration) is presented. The distributed localization system can estimate the position of the aircraft using the audio signals from aircraft transmitters in the VHF band (118-136 MHz). This paper shows initial verification of the possibility to use voice airband communication to estimate...

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• Experimental Research on the Energy Efficiency of a Parallel Hybrid Drive for an Inland Ship

  Publication

  • W. Litwin
  • W. Leśniewski
  • D. Piątek
  • K. Niklas

  - ENERGIES - Year 2019

  The growing requirements for limiting the negative impact of all modes of transport on the natural environment mean that clean technologies are becoming more and more important. The global trend of e-mobility also applies to sea and inland water transport. This article presents the results of experimental tests carried out on a life-size, parallel diesel-electric hybrid propulsion system. The eciency of the propulsion system was...

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• Automatic system for audio-video material reconstruction and archiving

  Publication

  • A. Kupryjanow
  • A. Czyżewski

  - Year 2008

  Referat przedstawia propozycję modelu systemu automatycznej archiwizacji i rekonstrukcji nagrań audio-wideo. Założeniem tego rozwiązania jest uczynienie procesu rekonstrukcji nagrań bardziej niezależnym od człowieka. Ma to na celu redukcję kosztów rekonstrukcji przetwarzanych nagrań. Z powodu dużej liczby archiwalnych nagrań audio-wideo istnieje potrzeba stworzenia systemu który umożliwi automatyczną indeksację ich treści. Pomoże...

• Dynamic soil improvement by hybrid technologies

  Publication

  • M. Wyroślak

  - Year 2015

  Hybrid method of subsoil improvement for road embankment foundation is described. This method is composed of two wellknown methods: dynamic replacement (DR) and microblasting (DDC) one (Deep Dynamic Compaction). The method was used for both the strengthening of the fully saturated organic subsoil as well as for acceleration of the consolidation of the organic layers. The practice ensures the expected results. A proper example on...

• Fast Calibration-Free Single-Anchor Indoor Localization Based on Limited Number of ESPAR Antenna Radiation Patterns

  Publication

  • M. Groth
  • K. Nyka
  • Ł. Kulas

  - Year 2023

  — In this article, we investigate how the calibrationfree single-anchor indoor localization algorithm developed for base stations equipped with electronically steerable parasitic array radiator (ESPAR) antennas can further be improved. By reducing the total number of ESPAR antenna radiation patterns used in localization process, one can significantly reduce the time needed for an object localization. Performed localization measurements...

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• Automatic localization and continous tracking of mobile sound source using passive acoustic radar

  Publication

  • A. Czyżewski
  • J. Kotus

  - Year 2010

  A concept, practical realization and applications of the passive acoustic radar for localization and continuous tracking of fixed and mobile sound sources such as: cars, trucks, aircrafts and sources of shooting, explosions were presented in the paper. The device consists of the new kind of multi-channel miniature three dimensional sound intensity sensors invented by the Microflown company and a group of digital signal processing...

• Integrated multiscale 3d imaging geographic information system using acoustic data

  Publication

  • K. Bikonis
  • J. Demkowicz
  • M. Moszyński
  • A. Stepnowski

  - Year 2006

  W artykule zaprezentowano prototyp zintegrowanego systemu informacji geograficznej do trójwymiarowej wizualizacji danych uzyskanych metodami akustycznymi. System wykorzystuje dane pochodzące z systemów wielowiązkowych, sonarów bocznych oraz echosond jednowiązkowych. Otrzymane wyniki zostały zaprezentowane w postaci trójwymiarowych interaktywnych scen obszaru Zatoki Gdańskiej.

• ENERGY EFFICIENT AND ENVIRONMENTALLY FRIENDLY HYBRID CONVERSION OF INLAND PASSENGER VESSEL

  Publication

  • W. Litwin
  • W. Leśniewski
  • J. Kowalski

  - Polish Maritime Research - Year 2017

  The development and growing availability of modern technologies, along with more and more severe environment protection standards which frequently take a form of legal regulations, are the reason why attempts are made to find a quiet and economical propulsion system not only for newly built watercraft units, but also for modernised ones. Correct selection of the propulsion and supply system for a given vessel affects significantly...

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• Real-time hybrid model of a wind turbine with doubly fed induction generator

  Publication

  • R. Rink
  • R. Małkowski

  - Year 2019

  In recent years renewable sources have been dominating power system. The share of wind power in energy production increases year by year, which meets the need to protect the environment. Possibility of conducting, not only computer simulation, but also laboratory studies of wind turbine operation and impact on the power system and other power devices in laboratory conditions would be very useful. This article presents a method...

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• Accuracy analysis of the RSSI BLE SensorTag signal for indoor localization purposes

  Publication

  • M. Kaczmarek
  • J. Rumiński
  • A. Bujnowski

  - Year 2016

  In this paper we describe possibility of use the RSSI signal (Radio Signal Strength Indication) from Texas Instruments SensorTag CC2650 for indoor positioning purposes. This idea is not a new but in our opinion it is possible to use SensorTags with Bluetooth LE wireless interface for positioning inside buildings in such applications as people findings in hospitals, senior come care, etc. RSSI is mostly selected as the sensor localization...

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• Nonlinear Analysis-Hybrid Systems

  Journals

  ISSN: 1751-570X , eISSN: 1878-7460

• European Journal of Hybrid Imaging

  Journals

  eISSN: 2510-3636

• System identification - new

  e-Learning Courses

  • M. Niedźwiecki

  The course focusses on the problem of identification of dynamic systems.

• System Software Design

  e-Learning Courses

  • A. Harasimiuk

• System Diagnostics - project

  e-Learning Courses

  • M. Domżalski

  As part of the course, students prepare practical solutions to problems in the field of modern systems diagnostics. Studies: Automatic Control, Cybernetics and RoboticsLevel: IILecturer: dr inż. Mariusz Domżalski Time: Tuesday, 11:15AM Language: English

• Voice command recognition using hybrid genetic algorithm

  Publication

  • M. Wroniszewska
  • J. Dziedzic

  - TASK Quarterly - Year 2010

  Abstract: Speech recognition is a process of converting the acoustic signal into a set of words, whereas voice command recognition consists in the correct identification of voice commands, usually single words. Voice command recognition systems are widely used in the military, control systems, electronic devices, such as cellular phones, or by people with disabilities (e.g., for controlling a wheelchair or operating a computer...

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• Assembling and testing of quasi-static hybrid piezoelectric motor based on electroactive lubrication principle

  Publication

  • J. Rouchon
  • D. Harribey
  • D. Tran
  • R. Ryndzionek
  • Ł. Sienkiewicz
  • M. Ronkowski
  • M. Michna
  • G. A. Kostro

  - Archives of Electrical Engineering - Year 2013

  The presented paper concerns a novel concept of hybrid piezoelectric motor based on electroactive lubrication principle. Its structure is combined of quasi-static and resonance piezoelectric actuators, synchronizing their work to generate the rotary movement. The hybrid motor topology is compared to the existing piezoelectric motors, regarding its field of applications in embedded systems with very high security requirements. The...

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• Influence of configurations of the beds on contaminations removal in hybrid constructed wetlands.

  Publication

  • M. Gajewska
  • A. Lang
  • H. Obarska-Pempkowiak

  - Year 2004

  Three hybrid constructed wetlands in configuration HF-VF-HF in Poland and one with another configuration VF-HF-Pond in Gremany were analysed. These hybrid constructed wetlands provide the second stage biological treatment. They are located in Pommerania region, in Sarbsk, Wiklino and Wieszyno, and their capacities are 29.7, 18.6 and 24.5 m3/day, respectively. The analysed system in Germany in Waizenfeld (Gemeinde Pommelsbrunn,...

• LRIT - a novel system of vessels monitoring for maritime security and safety

  Publication

  • R. Katulski
  • R. Niski
  • J. Stefański
  • J. Żurek

  - Year 2006

  W artykule przedstawiono propozycję architektury przyszłego, globalnego systemu monitorowania statków LRIT (Long Range ship's Identification and Tracking) podlegających konwencji SOLAS. Przedstawiono i scharakteryzowano poszczególne komponenty systemu ze szczególnym uwzględnieniem aspektów radiokomunikacyjnych.

• Suitability study of hybrid model of electrodynamic actuator

  Publication

  • P. Jankowski
  • M. Wołoszyn

  - INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS - Year 2014

  The paper presents the proposal of the hybrid circumferential model of an electrodynamic actuator. The field model uses the inductor current as the input data which is obtained from the circumferential model or experimentally.

• Hybrid all-cellulose reinforcement in polypropylene matrix biocomposites for injection moulding - influence of particle geometry and volume fraction on hybrid effect

  Publication

  • P. Franciszczak
  • J. Smoliński

  - COMPOSITE STRUCTURES - Year 2023

  The presented study is focused on evaluation of influence of reinforcement volume fraction and geometry on the occurrence of positive hybrid effect by the hybridisation of man-made cellulose fibres (rayon viscose) with cellulose microparticle fillers applied in polypropylene matrix. Four volume fractions of reinforcement were used at 1:1 combination of short man-made cellulose fibres with cellulose microfillers of different aspect...

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• NEW CONCEPT OF HYBRID PROPULSION WITH HYDROSTATIC GEAR FOR INLAND WATER TRANSPORT

  Publication

  • D. Piątek

  - Polish Maritime Research - Year 2019

  The article presents the development of author’s concept of a diesel/hydraulic propulsion system for inland watercraft. Due to specific nature of vessel navigation on rivers, classical propulsion systems with shaft lines can be effectively replaced by systems with hydraulic power transmission. A solution is also presented of a hybrid design with extra electric port having the form of a pumping system driven from a battery of accumulators....

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• Localization of impulsive disturbances in audio signals using template matching

  Publication

  • M. Niedźwiecki
  • M. Ciołek

  - DIGITAL SIGNAL PROCESSING - Year 2015

  In this paper, a new solution to the problem of elimination of impulsive disturbances from audio signals, based on the matched filtering technique, is proposed. The new approach stems from the observation that a large proportion of noise pulses corrupting audio recordings have highly repetitive shapes that match several typical “patterns”. In many cases a representative set of exemplary pulse waveforms can be extracted from the...

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• Assessing Roadside Hybrid Energy Absorbers Using the Example of SafeEnd

  Publication

  • M. Budzyński
  • K. Jamroz
  • Ł. Jeliński
  • D. Bruski
  • Ł. Pachocki
  • G. Baginski

  - Materials - Year 2022

  A combination of crash cushion and end-terminal, hybrid energy absorbing devices have been in use worldwide for a few years already. They include SafeEnd, a system Poland has recently introduced. Some road authorities have raised concerns as regards the operating conditions of the devices and how they work together with safety barriers. The objective of this research is to clarify the concerns and answer the following questions:...

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• Localization and identyfication of ferromagnetic objects

  Publication

  • M. Wołoszyn

  - Year 2008

  A compact ferromagnetic object placed in the earthly magnetic field causes disturbance of this field. This disturbance is associated with magnetization of the object. Ferromagnetic objects have induced and can also have permanent magnetization. In methods of locating and identifying ferromagnetic objects usually is using the model of the dipol moment. Determination of the position and values of the extremes of the magnetic field...