Wyniki wyszukiwania dla: STIRLING ENGINES

• Carbon dioxide potential reduction using Start-Stop system in a car

  Publikacja

  • J. Kropiwnicki
  • Z. Kneba

  - Key Engineering Materials - Rok 2014

  Operating fuel consumption increases significantly when the vehicle stops frequently while driving or when the engine is idling during braking. In such cases, the internal combustion engine consumes the fuel but the mechanical energy is not used by the drive system. The amount of fuel that is consumed in this time by the engine can potentially be saved if the car is equipped with a Stop-Start system. Start-Stop system automatically...

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• Janusz Nieznański prof. dr hab. inż.

  Osoby

  Zakład Przekształtników i Magazynowania Energii, Politechnika Gdańska

  Urodził się w 1957 r. w Gdańsku. Jest absolwentem Wydziału Elektrycznego Politechniki Gdańskiej (1981). W  1990 r. uzyskał stopień doktora, w 1999 r. stopień doktora habilitowanego, a w 2015 r. tytuł profesora. Jest pracownikiem naukowo-dydaktycznym Politechniki Gdańskiej nieprzerwanie od ukończenia studiów. Jego zainteresowania naukowe obejmują sterowanie, diagnostykę, modelowanie i symulację układów energoelektronicznych i napędowych,...

• Anna Jakubczyk-Gałczyńska dr inż.

  Osoby

  Katedra Inżynierii Budowlanej

  2012r.              15th International Symposium of Students and Young Mechanical Engineers "Advances in chemical and mechanical engineering" w Gdańsku - publikacja 2014r.              XIV Konferencja Naukowa Doktorantów Wydziałów Budownictwa w Szczyrku - referat i publikacja 2014r.              ICEE-2014 - International Conference on Environmental Engineering w Wilnie - publikacja 11.2015r.         XIV Sympozjum Wpływy Sejsmiczne...

• Determination of probabilities defining safety of a sea-going ship during performance of a transportation task in stormy weather conditions

  Publikacja

  • J. Girtler

  - Journal of Polish CIMEEAC - Rok 2017

  The paper presents the possibility of applying the theory of semi-Markov processes to determine the limiting distribution for the process of changes of technical states being reliability states of the systems of sea-going ships significantly affecting safety of such ships, which include main engine, propeller and steering gear. The distribution concerns the probabilities of occurrence of the said states defined for a long time...

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• Commonly Accessible Web Service Platform - Wiki-WS

  Publikacja

  • H. Krawczyk
  • M. Downar

  - Rok 2012

  Web Service technology on the basis had to supply complete and reliable system components. Nowadays this technology is commonly used by companies providing results of their work to end users and hiding implementation details. This paper presents a SOA-enabled platform - Wiki-WS - that empowers users to deploy, modify, discover and invoke web services. Moreover it discusses concepts and functionalities of this open source management...

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• IDENTIFICATION OF THE INTERFECE OF LATERAL SLIDE BEARINGS

  Publikacja

  • P. Bzura
  • K. M. Marszałkowski

  - Rok 2016

  In the paper, the model of slide bearings of motor engine, the metodology of research on this type of bearings and its results are presented measurement standpoint consisting of main elements of Briggs & Stratton 550 serie 10 T 802 model piston motor engine driven by three phase elektric engine is introduced . On the measurement standpoint are measurements were done, needed for specification...

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• The harmonic distortion of voltage waveforms in the ship's electrical power system

  Dane Badawcze

  open access

  • B. Pałczyńska

  The dataset is a part of the research results on the quality of supply voltage on bus bars of the ship's electrical power system's main switchboard in different states of ship exploitation. The attached dataset contains the results of a harmonic distortion analysis expressed by the total harmonic distortion (THD) coefficient of voltage waveforms recorded...

• Karol Żarski mgr inż.

  Osoby

  Katedra Inżynierii Transportowej

• Study on AR Application Efficiency of Selected iOS and Android OS Mobile Devices

  Publikacja

  • M. Zamłyńska
  • A. Lasota
  • G. Debita
  • P. Falkowski-Gilski

  - Rok 2022

  Currently, the number of scenarios for using AR (Augmented Reality) tools grows every year. Yet, there are still some open performance issues associated with this technology, related with the efficiency of the mobile device itself, including build-in components or the operation system. The purpose of this study was to investigate available augmented reality engines for mobile platforms. First, a review of current graphics and AR...

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• PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING

  Czasopisma

  ISSN: 0954-4070 , eISSN: 2041-2991

• Numerical analysis of high temperature minichannels heat exchanger performance

  Publikacja

  • J. Wajs
  • T. Kura
  • D. Mikielewicz
  • E. Fornalik-Wajs
  • J. Mikielewicz

  - Rok 2020

  Nowadays, the most difficult technological challenge in energy sector is connected with the gas micro-CHP units, dedicated to the distributed power generation. They are expected to be of high efficiency and at the same time of compact in size. Regarding the first reason, significant increase in microturbine efficiency can only be achieved by increase in the engine operating temperature. Therefore, one of the critical elements in...

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• Analysis and assessment of the acoustic emission suitability for determination of the energy states of a tribological system in the form of a four-ball tester friction node

  Publikacja

  • P. Bzura

  - Journal of Polish CIMEEAC - Rok 2008

  The present operating safety and cost reduction requirements of the compression ignition engines make it necessary to search for new methods of detecting their defects, e.g. by the analysis of acoustic emission signals coming from the slide bearings. The paper presents non-destructive measurements of acoustic emission (AE) in order to obtain information on the processes taking place in a tribological system under the continuously...

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• Using contextual conditional preferences for recommendation taska: a case study in the movie domain

  Publikacja

  • A. Karpus
  • T. Di Noia
  • P. Tomeo
  • K. Goczyła

  - Studia Informatica Pomerania - Rok 2016

  Recommendation engines aim to propose users items they are interested in by looking at the user interaction with a system. However, individual interests may be drastically influenced by the context in which decisions are taken. We present an attempt to model user interests via a set of contextual conditional preferences. We show that usage of proposed preferences gives reasonable values of the accuracy and the precision even when...

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• Analiza danych typu Big Data 2022/23

  Kursy Online

  • P. Weichbroth
  • W. Waloszek

  The aim of the course is to familiarize students with the methods of storing and analysis of big data. Practical tools for these tasks are presented.

• Analiza danych typu Big Data 2023/24 KOPIA

  Kursy Online

  • W. Waloszek

  The aim of the course is to familiarize students with the methods of storing and analysis of big data. Practical tools for these tasks are presented.

• Electrohydrodynamic flow patterns and collection efficiency in narrow wire-cylinder type electrostatic precipitator

  Publikacja

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

  - JOURNAL OF ELECTROSTATICS - Rok 2013

  Recently, narrow electrostatic precipitators (ESPs) have become a subject of interest because of their possible application for the cleaning of the exhaust gases emitted by diesel engines. Diesel engines emit fine particles, which are harmful to human and animal health. There are several methods for decrease particulate emission from a diesel engines, but up to now, these methods are not enough effective or very expensive. Therefore,...

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• Weronika Daszkowska engineer

  Osoby

• ENGLISH FOR ENGINEERS [2021/22]

  Kursy Online

  • K. Mazurowska

• Management and economic of engineer projects

  Kursy Online

  • A. T. Wiśniewska

• ENGLISH FOR ENGINEERS [2020/21]

  Kursy Online

• Management and economic of engineer projects

  Kursy Online

  • A. Ossowska

  Lectures  - 05 October-30 November, 2023 1. Project management: Engineers, projects, management, planning and scheduling, personnel and organizational, team building, project control, estimating and ordering. 2. Team building: personality types, team effectiveness. 3. Project management: WBS, Gantt, Earned Value Method, critical path, risk management. 4. Economic Engineering: Establishing economic equivalence, Interest: cost...

• Adam Dąbrowski dr inż.

  Osoby

  Adam Dąbrowski uzyskał stopień doktora nauk inżynieryjno-technicznych w dyscyplinie inżynieria mechaniczna na Politechnice Gdańskiej oraz ukończył studia II stopnia na kierunku mechatronika na Technische Universität Hamburg a także double degree Engineering and Management of Space Systems na Hochschule Bremen. Posiada doświadczenie przemysłowe (Instytut Lotnictwa w Warszawie, SICK AG w Hamburgu, Blue Dot Solutions w Gdańsku, Niemieckie...

• Utilising IT-based systems in regatta management

  Publikacja

  • P. Oleksiak

  - Rok 2016

  The development and increasing accessibility of new technologies has brought changes to the management of sailing regattas. Organisational and promotional difficulties faced by the organisers are now being tackled with software-based systems. This article considers various information technology (IT) systems, designed to support the organisation and presentation of sailing regattas and explores how they are perceived by regatta...

• Dynamic ranking of cloud providers

  Publikacja

  • P. Czarnul

  - Rok 2012

  The paper focuses on how to create an effective dynamic ranking service for IaaS,PaaS and SaaS cloud providers. It considers building of a quality model for thispurpose along with definition of quality measurement procedures. The paper discussesseveral techniques known from already existing price comparison engines that couldbe modified and adopted for comparison of cloud providers. Furthermore, a tech-nique for filtering measured...

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• Structural analysis of a wheeled tractor oriented towards damage diagnostics

  Publikacja

  • R. Michalski
  • J. Gonera
  • M. Janulin
  • R. Arendt

  - Rok 2012

  This study analyses the structure of a wheeled tractor whith the aim of evaluating the available options for diagnosing four types of defects affecting the vehicle's functions, exhaust gas emissions, engine performance and safety.

• PERS - QUIET ROAD SURFACE FOR URBAN AREAS

  Publikacja

  • J. Ejsmont
  • B. Świeczko-Żurek
  • S. Taryma

  - Rok 2013

  Traffic noise is one of the most important environmental problems in densely populated urban areas. At low speeds the tyre/road interaction dominates all other sources. It is anticipated that when electric and hybrid vehicles gain dominance in city traffic, the importance of tyre/road noise will still increase as electric engines are much less noisy than combustion engines. On the other hand, electric and hybrid urban vehicles...

• Jan Sierzputowski mgr inż.

  Osoby

  Jan Sierzputowski is a student at the Doctoral School of the Gdańsk University of Technology. His main interests are designing sailing yachts, improving the design process and human-centred design. In his professional work, he deals with sails, masts, rigging, deck equipment and its optimization for the end user. He graduated from engineering and master's studies at the Gdańsk University of Technology at the Faculty of Shipbuilding...

• Jacek Tomków dr hab. inż.

  Osoby

  Instytut Technologii Maszyn i Materiałów

  Wykształcenie:1. 2018 r.Doktor inżynier - Politechnika Gdańska, Wydział Mechaniczny, Inżynieria Materiałowa,rozprawa doktorska: Wpływ warunków spawania pod wodą na skłonność do tworzenia pęknięć zimnych w stalach o podwyższonej wytrzymałości 2. 2012 r.Magister inżynier - Politechnika Gdańska, Wydział Mechaniczny, Mechanika i Budowa Maszyn, specjalność: Technologia Maszyn i Komputerowe Wspomaganie Produkcji,praca magisterska: Badania...

• Projekt stanowiska badawczego do wyznaczania charakterystyki ogólnej silnika spalinowego ZS przy wykorzystaniu hydraulicznego układu odbioru mocy

  Publikacja

  • O. Wysocki
  • J. Czyżewicz
  • J. Kropiwnicki

  - Autobusy. Technika, Eksploatacja, Systemy Transportowe - Rok 2017

  Przedstawiono projekt stanowiska badawczego służącego do wyznaczania charakterystyki ogólnej silnika pojazdu ciężarowego, wykorzystując przystawkę odbioru mocy do napędu układu hydraulicznego generującego obciążenie silnika w różnych punktach jego pracy. Przedstawiono założenia projektowe oraz ograniczenia konstrukcyjne. Omówiono zasadę działania stanowiska i metodę wyznaczania charakterystyki. Opisano układ hydrauliczny oraz układ...

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• A decision-making system supporting selection of commanded outputs for a ship's propulsion system with a controllable pitch propeller

  Publikacja

  • K. Rudzki
  • W. Tarełko

  - OCEAN ENGINEERING - Rok 2016

  The ship's operators have to make decisions regarding the values of commanded outputs (commanded engine speed and pitch ratio) which ensure maximum vessel speed and minimum fuel consumption. Obviously, the presented decision problems are opposed. Therefore, there is a need for a compromise solution that enables more flexible vessel voyage planning. This paper deals with development of a computer-aided system supporting selection...

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• Sylwester Kaczmarek dr hab. inż.

  Osoby

  Katedra Sieci Teleinformacyjnych

  Sylwester Kaczmarek ukończył studia w 1972 roku jako mgr inż. Elektroniki, a doktorat i habilitację uzyskał z technik komutacyjnych i inżynierii ruchu telekomunikacyjnego w 1981 i 1994 roku na Politechnice Gdańskiej. Jego zainteresowania badawcze ukierunkowane są na: sieci IP QoS, sieci GMPLS, sieci SDN, komutację, ruting QoS, inżynierię ruchu telekomunikacyjnego, usługi multimedialne i jakość usług. Aktualnie jego badania skupiają...

• Adaptive system for recognition of sounds indicating threats to security of people and property employing parallel processing of audio data streams

  Publikacja

  • K. Łopatka

  - Rok 2015

  A system for recognition of threatening acoustic events employing parallel processing on a supercomputing cluster is featured. The methods for detection, parameterization and classication of acoustic events are introduced. The recognition engine is based onthreshold-based detection with adaptive threshold and Support Vector Machine classifcation. Spectral, temporal and mel-frequency descriptors are used as signal features. The...

• Symbiosis of Art and Technology – From Renaissance to Interactive Art,

  Publikacja

  • J. Buczkowski
  • K. Życzkowska

  - Rok 2018

  The article presents the mutual relations between art and technology from the Renaissance to the interactive art of today. It indicates important factors influencing the possibilities of imaging and interpreting reality by artists, ranging from the development of oil painting techniques, linear perspective, the invention of printing and photography, to achievements related to the development of information technologies (computers,...

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• Analytical progress on symmetric geometric discord: Measurement-based upper bounds

  Publikacja

  • A. Miranowicz
  • P. Horodecki
  • R. Chhajlany
  • J. Tuziemski
  • J. Sperling

  - PHYSICAL REVIEW A - Rok 2012

  Quantum correlations may be measured by means of the distance of the state to the subclass ofstates having well defined classical properties. In particular, a geometric measure of asymmetricdiscord [Daki´c et al., Phys. Rev. Lett. 105, 190502 (2010)] was recently defined as the Hilbert-Schmidt distance of a given two-qubit state to the closest classical-quantum (CQ) correlated state.We analyze a geometric measure of symmetric...

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• Effect of psoriasis activity and topical treatment on plasma epidermal growth factor (EGF) and its soluble receptor (sEGFR)

  Publikacja

  • M. Szterling-Jaworowska
  • A. Baran
  • H. Myśliwiec
  • I. Flisiak

  - JOURNAL OF DERMATOLOGICAL TREATMENT - Rok 2018

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• Influence of lubricating oil improvers on performance of crankshaft seals

  Publikacja

  • P. Bzura

  - Polish Maritime Research - Rok 2018

  This paper presents an original method for checking influence of lubricating oil improvers on performance of crankshaft seals of combustion piston engine. Crankshaft seals were tested with the use of a modified friction node of T-02 four- ball apparatus in laboratory conditions. The tests were conducted according to a worked-out algorithm. Their results confirmed usefulness of the method for determining „harmful” performance...

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• Electric Machines [Energy Technologies][2022/23]

  Kursy Online

  • F. Kutt
  • A. Wilk
  • M. Michna
  • G. A. Kostro
  • R. Ryndzionek
  • Ł. Sienkiewicz

  Fundamentals of elektromechanical energy conversion. Bachelor/Engineer in Energy Technologies, 4th semester, undergraduate, full-time.

• Electric Machines [Energy Technologies][2023/24]

  Kursy Online

  • F. Kutt
  • A. Wilk
  • M. Michna
  • R. Ryndzionek
  • Ł. Sienkiewicz

  Fundamentals of elektromechanical energy conversion. Bachelor/Engineer in Energy Technologies, 4th semester, undergraduate, full-time.

• Przemysław Krata dr hab. inż.

  Osoby

  Instytut Budowy Okrętów

• Performance Analysis of Convolutional Neural Networks on Embedded Systems

  Publikacja

  • Ł. Grzymkowski
  • T. Stefański

  - Rok 2020

  Machine learning is no longer confined to cloud and high-end server systems and has been successfully deployed on devices that are part of Internet of Things. This paper presents the analysis of performance of convolutional neural networks deployed on an ARM microcontroller. Inference time is measured for different core frequencies, with and without DSP instructions and disabled access to cache. Networks use both real-valued and...

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• Adaptive Algorithm for Interactive Question-based Search

  Publikacja

  • J. Rzeniewicz
  • J. Szymański
  • W. Duch

  - Rok 2012

  Popular web search engines tend to improve the relevanceof their result pages, but the search is still keyword-oriented and far from "understanding" the queries' meaning. In the article we propose an interactive question-based search algorithm that might come up helpful for identifying users' intents. We describe the algorithm implemented in a form of a questions game. The stress is put mainly on the most critical aspect of this...

• AN ENERGY APPROACH TO THE FATIGUE LIFE OF SHIP PROPULSION SYSTEMS

  Publikacja

  • Z. Korczewski
  • J. Rudnicki

  - Rok 2015

  The conducted research investigations aimed to carry out an identification of the constructional materials fatigue state of the ship propulsions’ rotational mechanical units for diagnostic purposes. The fatigue cracks of the elements transmitting mechanical energy streams from the propulsion engines to the ship propellers or to the generators of the ship’s electric power station stand for a primary reason for the secondary, usually...

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• THE VIBRATION BASED DIAGNOSTICS OF SHIP PROPULSION SYSTEMS

  Publikacja

  • Z. Korczewski
  • J. Rudnicki

  - Rok 2015

  The article has been worked out on the basis of the report devoted to the conducted diagnostic investigations of the ship main propulsion unit’s mechanical system. Gdansk University of Technology has been ordered with such investigations by the repair Shipyard carrying out the ship’s overhaul. Diagnostic tests involved measurements and analyses of the vibration signals generated in selected constructional kinematic pairs of the...

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• Tadeusz Stolarski prof. dr hab. inż.

  Osoby

• EMISJA AKUSTYCZNA JAKO SYGNAŁ DIAGNOSTYCZNY ODWZOROWUJĄCY ZMĘCZENIOWE ZUŻYCIE WARSTW ŚLIZGOWYCH PANWI ŁOŻYSK GŁÓWNYCH I KORBOWYCH SILNIKÓW O ZAPŁONIE SAMOCZYNNYM

  Publikacja

  • J. Girtler

  - Journal of Polish CIMEEAC - Rok 2019

  W artykule przedstawiono wyniki badań laboratoryjnych, z których wynika, że emisja akustyczna (EA) może być uznana za sygnał diagnostyczny, przydatny do identyfikacji stanu technicznego łożysk głównych i korbowych okrętowych silników o zapłonie samoczynnym. Wykazano w nim bowiem, że parametry emisji akustycznej takie jak: czas rejestracji, energia sygnału, amplituda sygnału, ilość przekroczeń poziomu dyskryminacji, czas narastania,...

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• The instantaneous frequency rate spectogram

  Publikacja

  • K. Czarnecki

  - MECHANICAL SYSTEMS AND SIGNAL PROCESSING - Rok 2016

  An accelerogram of the instantaneous phase of signal components referred to as an instantaneous frequency rate spectrogram (IFRS) is presented as a joint time-frequency distribution. The distribution is directly obtained by processing the short-time Fourier transform (STFT) locally. A novel approach to amplitude demodulation based upon the reassignment method is introduced as a useful by-product. Additionally, an estimator of energy...

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• Centrifugal magnetic fluid seals

  Publikacja

  • L. Matuszewski
  • N. Canter

  - TRIBOLOGY & LUBRICATION TECHNOLOGY - Rok 2018

  Seals perform an important and at times overlooked function in a lubricant system. They prevent or minimize the movement of the lubricant between two surfaces and also minimize the level of contamination in the system. Seals are divided into static and dynamic types. Static seals operate in systems where the mating surfaces do not move relative to each other. In contrast, dynamic seals operate under conditions where the mating surfaces...

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• ENGLISH FOR ENGINEERS II [2020/21]

  Kursy Online

  • M. Śliwiński
  • J. Zalewski
  • K. Mazurowska

• ENGLISH FOR ENGINEERS II [2020/21]

  Kursy Online

• Summer course English for Future Engineers

  Kursy Online

  • M. Strach-Drabina