Wyniki wyszukiwania dla: mean transport stratum response time

• Traffic Model of IMS/NGN Architecture with Transport Stratum Based on MPLS Technology

  Publikacja

  • S. Kaczmarek
  • M. Kosek
  • M. Sac

  - International Journal of Electronics and Telecommunications - Rok 2013

  Growing expectations for a fast access to information create strong demands for a universal telecommunication network architecture, which provides various services with strictly determined quality. Currently it is assumed that these requirements will be satisfied by Next Generation Network (NGN), which consists of two stratums and includes IP Multimedia Subsystem (IMS) elements. To guarantee Quality of Service (QoS) all NGN stratums...

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• Simulation Model of IMS/NGN with Transport Stratum Based on MPLS Technology

  Publikacja

  • S. Kaczmarek
  • Ł. Łuczaj
  • M. Sac

  - Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne - Rok 2016

  In the paper we continue our research on traffic modelling in the Next Generation Network (NGN) architecture, which includes the IP Multimedia Subsystem (IMS) elements. A simulation model of a single NGN domain with transport stratum based on the Multiprotocol Label Switching (MPLS) technology is proposed, which allows evaluation of mean response time of this stratum. The simulation model is applied to verify the results obtained...

• Analytical Traffic Model for a Multidomain IMS/NGN Network Including Service and Transport Stratum

  Publikacja

  • S. Kaczmarek
  • M. Sac
  • M. Cieśliński

  - Rok 2022

  This paper addresses the problem of modelling call processing performance (CPP) in a multidomain Next Generation Network (NGN) architecture including the elements of the IP Multimedia Subsystem (IMS) in service stratum and based on the Multiprotocol Label Switching (MPLS) technology in transport stratum. An analytical traffic model for such an architecture is proposed by integrating the formerly implemented submodels of service...

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• Performance Evaluation of a Multidomain IMS/NGN Network Including Service and Transport Stratum

  Publikacja

  • S. Kaczmarek
  • M. Sac

  - Applied Sciences-Basel - Rok 2022

  The Next Generation Network (NGN) architecture was proposed for delivering various multimedia services with guaranteed quality. For this reason, the elements of the IP Multimedia Subsystem (IMS) concept (an important part of 4G/5G/6G mobile networks) are used in its service stratum. This paper presents comprehensive research on how the parameters of an IMS/NGN network and traffic sources influence mean Call Set-up Delay (E(CSD))...

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• Design of a Multidomain IMS/NGN Service Stratum

  Publikacja

  • S. Kaczmarek
  • M. Sac

  - Rok 2018

  The paper continues our research concerning the Next Generation Network (NGN), which is standardized for delivering multimedia services with strict quality and includes elements of the IP Multimedia Subsystem (IMS). A design algorithm for a multidomain IMS/NGN service stratum is proposed, which calculates the necessary CSCF servers CPU message processing times and link bandwidths with respect to the given maximum values of mean...

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• Implementation of IMS/NGN Transport Stratum Based on the SDN Concept

  Publikacja

  • S. Kaczmarek
  • M. Sac
  • K. Bachorski

  - SENSORS - Rok 2023

  The paper presents the development and verification of software and a testbed aiming to demonstrate the ability of two telecommunication network concepts—Next Generation Network (NGN) and Software-Defined Networking (SDN)—to cooperate. The proposed architecture includes components of the IP Multimedia Subsystem (IMS) in its service stratum and of the SDN (controller and programmable switches) in its transport stratum, providing...

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• Extensions of ETSI performance measurements methodology for statistical results analysis =Rozszerzenia metodologii pomiarów wydajności zaproponowanej przez ETSI przy statystycznej analizy wyników

  Publikacja

  • S. Kaczmarek
  • M. Młynarczuk
  • M. Narloch
  • M. Sac

  - Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne - Rok 2012

  Next Generation Network (NGN) architecture was proposed by International Telecommunication Union Telecommunication Standardization Sector (ITU-T) to deliver telecommunication services satisfying the needs of modern society for an access to information. The core of NGN service stratum are IP Multimedia Subsystem (IMS) elements acting as service controls units. To assess performance of IMS components, European Telecommunications...

• Simulation Model for Application of the SDN Concept in IMS/NGN Network Transport Stratum

  Publikacja

  • S. Kaczmarek
  • M. Sac
  • J. Adrych

  - Rok 2024

  The paper presents a simulation model allowing examination of cooperation between two currently used telecommunication networks concepts: IP Multimedia Subsystem/Next Generation Network (IMS/NGN) and Software-Defined Networking (SDN). Application of the SDN architecture elements in IMS/NGN networks will enable unified control and management of transport resources for various transport technologies and equipment manufacturers. However,...

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• Dedicated scheduling of tasks to minimize mean flow time

  Publikacja

  • K. Giaro
  • M. Kubale
  • M. Małafiejski
  • K. Piwakowski

  - LECTURE NOTES IN COMPUTER SCIENCE - Rok 2002

  This paper investigates the complexity of scheduling biprocessor tasks on dedicated processors to minimize mean flow time. Since the general problem is strongly NP-hard, we assume some restrictions on task lengths and the structure of associated scheduling graphs. Of particular interest are acyclic graphs. In this way we identify a borderline between NP-hard and polynomially solvable special cases.

• Travel Time of Public Transport Vehicles Estimation

  Publikacja

  • K. Jamroz
  • K. Birr
  • W. Kustra

  - Transportation Research Procedia - Rok 2014

  Effective prediction of speed is central to advanced traveler information and transportation management systems. The speed of public transport vehicles is affected by many external factors including traffic volume, organization and infrastructure. The literature presents methods for estimating travel time on sections of a transport network and vehicle arrival at stops, often making use of the AVL (automatic vehicle location). The...

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• ADAPTIVE IDENTIFICATION OF TIME-VARYING IMPULSE RESPONSE OF UNDERWATER ACOUSTIC COMMUNICATION CHANNEL

  Publikacja

  • I. Kochańska

  - HYDROACOUSTICS - Rok 2015

  The transmission properties of underwater acoustic communication channel can change dynamically due to the movement of acoustic system transmitter and receiver or underwater objects reflecting transmitted signal. The time-varying impulse response measurement and estimation are necessary to match the physical layer of data transmission to instantaneous channel propagation conditions. Using the correlative measurement method, impulse...

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• On time-dependent nonlinear dynamic response of micro-elastic solids

  Publikacja

  • M. Malikan
  • V. Eremeev

  - INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE - Rok 2023

  A new approach to the mechanical response of micro-mechanic problems is presented using the modified couple stress theory. This model captured micro-turns due to micro-particles' rotations which could be essential for microstructural materials and/or at small scales. In a micro media based on the small rotations, sub-particles can also turn except the whole domain rotation. However, this framework is competent for a static medium....

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• Reliability Testing of Wind Farm Devices Based on the Mean Time to Failures

  Publikacja

  • S. Duer
  • M. Woźniak
  • J. Paś
  • K. Zajkowski
  • A. Ostrowski
  • M. Stawowy
  • Z. Budniak

  - ENERGIES - Rok 2023

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• Medical transport of ambulances. Analysis of travel time

  Publikacja

  • R. Pniewski
  • D. Pietruszczak
  • M. Ciupak

  - Autobusy. Technika, Eksploatacja, Systemy Transportowe - Rok 2018

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• The time spent sitting does not always mean a low level of physical activity

  Publikacja

  • E. Matusiak-Wieczorek
  • A. Lipert
  • E. Kochan
  • A. Jegier

  - BMC PUBLIC HEALTH - Rok 2020

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• Using Statistical Methods to Estimate The Worst Case Response Time of Network Software Running on Indeterministic Hardware Platforms

  Publikacja

  • J. Kiciński
  • K. Nowicki

  - Journal of Computer Science and Software Application - Rok 2014

  In this paper we investigate whether the statistical Worst Case Execution Time (WCET) estimation methods devised for embedded platforms can be successfully applied to find the Worst Case Response Time (WCRT) of a network application running on a complex hardware platform such as a contemporary commercial off-the-shelf (COTS) system. Establishing easy-to-use timing validation techniques is crucial for real-time applications and...

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• Reliability Testing of Wind Farm Devices Based on the Mean Time between Failures (MTBF)

  Publikacja

  • S. Duer
  • M. Woźniak
  • J. Paś
  • K. Zajkowski
  • D. Bernatowicz
  • A. Ostrowski
  • Z. Budniak

  - ENERGIES - Rok 2023

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• DETERMINING THE TIME CONSTANT USING TWO METHODS AND DEFINING THE THERMOCOUPLE RESPONSE TO SINE EXCITATION OF GAS TEMPERATURE

  Publikacja

  • P. Puzdrowska

  - Journal of Polish CIMEEAC - Rok 2016

  This paper describes the two methods of determining the time constant of type K thermocouple, for two construction solutions: the exposed weld and the mantle fillet weld. This is an important parameter indicating the response time of the thermocouple on the recorded signal. The first method consists of determining the value of τ in the way of numerical simulation of heat exchange between the thermocouple and the current of gas...

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• CMOS Low-Dropout Regulator With Improved Time Response

  Publikacja

  • G. Blakiewicz

  - Rok 2011

  Przedstawiono nową konfigurację regulatora o obniżonym spadku napięcia, w którym wykorzystano stopień wyjściowy z równoległym sprzężeniem napięciowym. Dzięki obniżonej rezystancji wyjściowej stopnia, uzyskano poprawę odpowiedzi impulsowej regulatora na szybką zmianę prądu wyjściowego.

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• Autonomous Sensory Meridian Response (ASMR): The time perception approach

  Publikacja

  • S. Seifzadeh

  - Rok 2019

• Assessment of the mean time in the therapeutic INR range and the SAME-TT2R2 score in patients with atrial fibrillation and cognitive impairment

  Publikacja

  • P. Gorzelak-Pabiś
  • S. Zyzak
  • Ł. Krewko
  • M. Broncel

  - Polish Archives of Internal Medicine - Rok 2016

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• Optimization of the efficiency of braking energy recovery in rail transport by changing arrival time

  Publikacja

  • M. Urbaniak
  • E. Kardas-Cinal

  - Problemy Kolejnictwa - Rok 2018

  The article refers to the previous work of the authors, in which the model of traffic organization of cooperating trains including the optimization of the use of energy returned to the catenary was presented. In the presented article, the model was modified by changing the main control variable, which affects the efficient use of energy. Departure time was changed for the arrival time of the train to the stop or station. The optimization...

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• Influence of Analyte Flow Rate on Signal and Response Time of the Amperometric Gas Sensor with Nafion Membrane

  Publikacja

  • J. Gębicki
  • B. Chachulski

  - ELECTROANALYSIS - Rok 2009

  W publikacji przedstawiono rezultaty badań nad wpływem zmian objętościowego natężenia przepływu gazu na sygnał i czas odpowiedzi prototypowego czujnika ditlenku siarki z membraną nafionową. Porównywano właściwości czujników różniących się materiałem elektrody pracującej oraz składem roztworu elektrolitu wewnętrznego. Zastosowano elektrody pracujące wykonane z napylonych próżniowo na powierzchnię membrany nafionowej złota i platyny....

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• A fault diagnosis method for analog parts of embedded systems based on time response and identification curves in the 3-D space

  Publikacja

  • Z. Czaja

  - Rok 2005

  Przedstawiono nową wersję 3-D nowej metody diagnostycznej części analogowych w mieszanych sygnałowo systemach wbudowanych bazujących na mikrokontrolerach. Bazuje ona na krzywych identyfikacyjnych w przestrzeni 3-D i pomiarze próbek napięcia odpowiedzi układu badanego na pobudzenie impulsem prostokątnym. Zalety metody: pomiary są wykonywane wyłącznie za pomocą urządzeń peryferyjnych popularnych mikrokontrolerów, procedura diagnostyczna...

• Response to the letter to the Editor regarding the article “Vaccine versus infection - COVID-19-related loss of training time in elite athletes”

  Publikacja

  • J. Krzywański
  • T. Mikulski
  • H. Krysztofiak
  • A. Pokrywka
  • T. Sobierajski
  • M. Młyńczak
  • A. Piechuta
  • E. Kuchar

  - JOURNAL OF SCIENCE AND MEDICINE IN SPORT - Rok 2023

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• Rola nowego tramwaju wodnego w Gdańsku

  Publikacja

  • E. Miszewska

  - Logistyka - Rok 2014

  Streszczenie Tramwaj wodny – środek miejskiej komunikacji zbiorowej czy jednostka przewozów turystyczny? Identyfikacja, zestawienie i analiza czynników transportu nowopowstałej usługi przewozowej z komunikacją miejską i przewozem turystycznym tj. :cennik biletów, sposobu dystrybucji biletów, czasu przejazdu dostępności, przebieg trasy i częstotliwości kursowania. Wskazanie funkcji przewozowej tramwaju wodnego w Gdańsku.

• Andrzej Chybicki dr inż.

  Osoby

  Katedra Systemów Geoinformatycznych

  Z wykształcenia informatyk, absolwent Wydziału Elektroniki, Telekomunikacji i Informatyki Politechniki Gdańskiej, doktor nauk technicznych w dziedzinie informatyka specjalizujący się w przetwarzaniau danych przestrzennych w rozproszonych systemach informatycznych. Ukierunkowany na wykorzystywanie osiągnięć i wiedzy zakresu prowadzonych badań w przemyśle. Współpracował z szeregiem podmiotów przemysłu informatycznego, geodezyjnego...

• Performance of ASON/GMPLS architecture in condition of wavelength conversion and without wavelength conversion

  Publikacja

  • S. Kaczmarek
  • M. Młynarczuk
  • K. Szałajda

  - Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne - Rok 2016

  The paper regards the problem of ASON/GMPLS performance in condition of wavelength and without wavelength conversion. The authors present influence analysis in condition of wavelength and non-wavelength conversion on the ASON/GMPLS control plane performance represented by mean Connection Set-up Time E (CST) and request loss probabilities. The offered traffic to the transport layer and request intensity have been changed for evaluation...

• SiC coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #B37/#A35

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of SiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, SiC over SiC . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 3 min.Secimen...

• TiC coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #A39/#B41

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of TiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiC over TiC . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 3 min.Secimen...

• SiC coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #A35/#B37

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of SiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, SiC over SiC . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 3 min.Secimen...

• CrN coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #B21/#A21

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of CrN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, CrN  over CrN . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 25 min....

• TiN coating in ring-on-ring sliding with distlled water lubrication 5MPa, 0.1m/s specimn. #A45/#A47

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. distilled water lubrication

  Wear tests in sliding friction of TiN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiN over TiN. Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: DISTILLED WATER. Tribometer: PT-3. Overall test time till coating penetration  20 min. The test...

• TiN coating in ring-on-ring sliding with distlled water lubrication 5MPa, 0.1m/s specimn. #A45/#B45

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. distilled water lubrication

  Wear tests in sliding friction of TiN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiN over TiN. Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: DISTILLED WATER. Tribometer: PT-3. Overall test time till coating penetration  90 min. The test...

• Reliability And Safety As An Objective Of Intelligent Transport Systems In Urban Areas

  Publikacja

  • J. Oskarbski
  • K. Jamroz

  - Journal of KONBiN - Rok 2015

  Technologies that use transport telematics offer tools for strengthening urban transport systems. They rationalise the use of the existing infrastructure and transport management systems, increase their reliability and safety and improve the transport behaviour of residents, while reducing the operating costs of transport. The main reason for using Intelligent Transport Systems (ITS) is the need to implement measures to reduce...

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• TiN coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #B48/#A45

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of TiN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiN over TiN . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 12 min....

• TiC coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #B41/#A39

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of TiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiC over TiC . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 9 min....

• CrN coating in ring-on-ring sliding with distlled water lubrication 5MPa, 0.1m/s specimn. #A23/#B22

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. distilled water lubrication

  Wear tests in sliding friction of CrN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, CrN  over CrN . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: DISTILLED WATER. Tribometer: PT-3. Overall test time till coating penetration 12 min. The...

• TiC coating in ring-on-ring sliding with distlled water lubrication 5MPa, 0.1m/s specimn. #B39/#A41

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. distilled water lubrication

  Wear tests in sliding friction of TiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiC over TiC . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: DISTILLED WATER. Tribometer: PT-3. Overall test time till coating penetration  3 min. The test...

• SiC coating in ring-on-ring sliding with distlled water lubrication 5MPa, 0.1m/s specimn. #B34/#A33

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. distilled water lubrication

  Wear tests in sliding friction of SiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, SiC over SiC. Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: DISTILLED WATER. Tribometer: PT-3. Overall test time till coating penetration  3 min. The test...

• TiN coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #A45/#B48

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of TiN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiN over TiN . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 12 min....

• TiC coating in ring-on-ring sliding with distlled water lubrication 5MPa, 0.1m/s specimn. #A41/#B39

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. distilled water lubrication

  Wear tests in sliding friction of TiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiC  over TiC . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: DISTILLED WATER. Tribometer: PT-3. Overall test time till coating penetration  3 min. The...

• CrN coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #A25/#B21

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of CrN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, CrN  over CrN . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 9 min....

• CrN coating in ring-on-ring sliding with distlled water lubrication 5MPa, 0.1m/s specimn. #B22/#A23

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. distilled water lubrication

  Wear tests in sliding friction of CrN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, CrN over CrN. Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: DISTILLED WATER. Tribometer: PT-3. Overall test time till coating penetration  6 min. The test...

• SiC coating in ring-on-ring sliding with distlled water lubrication 5MPa, 0.1m/s specimn. #A33/#B34

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. distilled water lubrication

  Wear tests in sliding friction of SiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, SiC  over SiC. Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: DISTILLED WATER. Tribometer: PT-3. Overall test time till coating penetration  3 min. The test...

• Wydajność przetwarzania żądań usług uwarunkowanych czasowo realizowanych w sieci IMS/NGN

  Publikacja

  • M. Sac

  - Rok 2022

  W rozprawie dokonano przeglądu stanu implementacji koncepcji IMS/NGN, a także modeli systemów obsługi z oczekiwaniem pod kątem zastosowania dla serwerów i łączy w modelu analitycznym wielodomenowej sieci IMS/NGN. Przedstawiono założenia dla tego modelu oraz metodologię obliczeń i analizy wyników: średnich czasów E(CSD) zestawiania i E(CDD) rozłączenia połączenia dla scenariuszy połączeń zakończonych sukcesem. Opisano założenia,...

• Evaluation of ASON/GMPLS Connection Control Servers Performance

  Publikacja

  • S. Kaczmarek
  • M. Młynarczuk
  • M. Narloch
  • M. Sac

  - Rok 2011

  Performance aspects have always been very important in telecommunications, especially in control elements. That problem also regards ASON/GMLPS network, which is one of the propositions for Next Generation Network (NGN) transport stratum. In this paper we investigate performance of ASON/GMPLS Connection Control Servers (CCSs) in laboratory testbed, which architecture and operation are also described. In order to evaluate the performance...

• Grzegorz Szwoch dr hab. inż.

  Osoby

  Katedra Systemów Multimedialnych

  Grzegorz Szwoch urodził się w 1972 roku w Gdańsku. W latach 1991-1996 studiował na wydziale Elektroniki Politechniki Gdańskiej. W roku 1996 ukończył studia w Zakładzie Inżynierii Dźwięku (obecnie Katedra Systemów Multimedialnych), broniąc pracę dyplomową pt. Modelowanie fizyczne wybranych instrumentów muzycznych. W tym samym roku dołączył do zespołu badawczego Katedry jako uczestnik Studium Doktoranckiego. Od stycznia 2001 roku...

• Development of trolleybus public transport in Gdynia as part of sustainable mobility strategy

  Publikacja

  • K. Grzelec
  • K. Birr

  - Zeszyty Naukowe Politechniki Śląskiej. Seria: Transport - Rok 2016

  In many EU cities trolleybuses are experiencing a period of revitalization. New lines, new and modern trolley-buses, the use of auxiliary propulsion battery, eco-logical values and others, create great opportunities for that kind of public transport as an effective tool to shape transport policy in accordance with the principles of sustainable mobility. Gdynia is one of three cities in Poland with trolleybuses public transport...

  Pełny tekst do pobrania w portalu

• Call Control Evaluation in ASON/GMPLS Architecture

  Publikacja

  • S. Kaczmarek
  • M. Młynarczuk

  - Rok 2013

  The Automatically Switched Optical Network (ASON) utilizing Generalized Multi–Protocol Label Switching (GMPLS) protocols named as ASON/GMPLS is one of the propositions of Next Generation Network. The basic assumption of ASON control plane is a separation of call control from connection control. The control plane is divided into call control and connection control components. Presented work regards the problem of call control evaluation...