Wyniki wyszukiwania dla: WALFISCH-IKEGAMI MODEL

• Statistical Tuning of Walfisch-Ikegami Model for the Untypical Environment

  Publikacja

  • S. J. Ambroziak

  - Rok 2014

  The Walfisch-Ikegami model has been investigated in terms of mobile radio systems designing in the untypical environment such as the maritime container terminal. The measurement equipment and procedures have been described as well as characteristics of investigated environment. Results of the statistical tuning in terms of path loss estimation in such environment have been analysed. The analysis has proved improvement of the path...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Statistical Tuning of Walfisch-Ikegami Model for the Untypical Environment

  Publikacja

  • S. J. Ambroziak
  • R. Katulski

  - Rok 2014

  The Walfisch-Ikegami model has been investigated in terms of mobile radio systems designing in the untypical environment such as the maritime container terminal. The measurement equipment and procedures have been described as well as characteristics of investigated environment. Results of the statistical tuning in terms of path loss estimation in such environment have been analysed. The analysis has proved improvement of the path...

• An Empirical Propagation Model for Mobile Radio Links in Container Terminal Environment

  Publikacja

  • S. J. Ambroziak
  • R. Katulski

  - IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY - Rok 2013

  In this paper, a novel empirical propagation model for mobile radio links in a container terminal environment is presented. Measurement propagation research carried out in the Deepwater Container Terminal (DCT) in Gdańsk, Poland is described, and the investigated environment is characterized. The results of the statistical evaluation of the new model are discussed. In addition, statistical tuning of the Walfisch–Ikegami model for...

  Pełny tekst do pobrania w portalu

• Path Loss Modelling in the Untypical Outdoor Propagation Environments

  Publikacja

  • S. J. Ambroziak
  • R. Katulski

  - Rok 2014

  In the paper three ways of path loss modelling in the untypical outdoor environments are presented. The exemplary untypical outdoor environment is analyzed. The investigated environment is characterized, and the measurement campaign are shortly described. The following models have been analyzed: the COST231 Walfisch-Ikegami model, the modified COST231Walfisch-Ikegami model tuned on the basis of empirical data, and the empirical...

• Reduced model of gyroscopic system

  Publikacja

  • C. Orlikowski
  • R. Hein

  - Rok 2008

  The paper presents the method of model reduction for the system with gyroscopic interactions. Two methods were used to obtain the approximate discrete models of the continuous structure: the modal decomposition method and the rigid finite element method. The first approach is used for this part of a system for which it is easy to formulate orthogonality conditions, meanwhile the second one is used for other part. The method enables...

• JOz Model AiR

  Kursy Online

  • B. Ozimek
  • U. Kamińska
  • I. Mokwa-Tarnowska
  • J. Wielgus
  • E. Wawoczna

• User satisfaction model

  Publikacja

  • M. Sikorski

  - Rok 2007

  Raport techniczny - opis metody ''User Satisfaction Methods'' wykorzystywanej w projektowaniu komunikacji człowiek-komputer oraz doskonaleniu interfejsu użytkownika.

• A simple model of circular hydraulic pump

  Publikacja

  • J. Mikielewicz
  • D. Mikielewicz

  - INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER - Rok 2008

  Rozpatrzono warunki powstawania osiowosymetrycznego uskoku hydraulicznego. Przedstawiono model, w którym rozpatrzono obecność dodatkowych strat w równaniu Bernoulliego. Przyczyniają się one do powstawania dodatkowego wiru w miejscu uskoku. Porównanie z wynikami badań eksperymentalnych potwierdza słuszność przyjętych tez.

  Pełny tekst do pobrania w portalu

• Spirometry measurement model - the diagnostic purpose support

  Publikacja

  • J. Szklanny
  • W. Słomiński
  • K. Kuziemski

  - Biocybernetics and Biomedical Engineering - Rok 2008

  the paper presents a new model of respiratory mechanism based on the spirometry measurements. the spirometry test assesses the efficiency of the lung ventilation. the respiratory system functioning is based on the ventilation mechanism. thus the quality of the lung depends on the quality of lung ventilation. modelling of the respiratory system supports a diagnostic process. the model parameter estimates are obtained on the basis...

• Reliability model of the crankshaft-piston assembly

  Publikacja

  • P. Bzura

  - Journal of KONES - Rok 2012

  The laws that govern the durability of crankshaft-piston assembly friction nodes can be proved or at least derived or justified in an intuitive way. Operation of all the friction nodes is disturbed by external factors occurring with randomly changing intensity and also appearing at random. As the crankshaft-piston assembly friction nodes have a series structure and effects of those disturbances accumulate, their fitness for use...

  Pełny tekst do pobrania w portalu