Wyniki wyszukiwania dla: ROOF BRACING

• Multipath Complex Root Tracing

  Publikacja

  • S. Dziedziewicz
  • M. Warecka
  • R. Lech
  • P. Kowalczyk

  - Rok 2022

  The problem of multipath root tracing is being addressed in this communication. The self-adaptive complex root tracing algorithm, which was previously utilized for the investigation of various propagation and radiation problems, is analyzed here for the cases when the traced characteristic bifurcates. A procedure of multiroute detection is proposed and demonstrated on the coaxially loaded cylindrical waveguide example.

• Efficient Complex Root Tracing Algorithm for Propagation and Radiation Problems

  Publikacja

  • P. Kowalczyk
  • W. Marynowski

  - IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION - Rok 2017

  An efficient complex root tracing algorithm for propagation and radiation problems is presented. The proposed approach is based on a discretization of Cauchy’s Argument Principle and its generalization to the C × R space. Moreover, an engagement of the tracing process with a global root finding algorithm recently presented in the literature is performed. In order to confirm a validity and efficiency of the proposed technique, a...

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• A Self-Adaptive Complex Root Tracing Algorithm for the Analysis of Propagation and Radiation Problem

  Publikacja

  • S. Dziedziewicz
  • R. Lech
  • P. Kowalczyk

  - IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION - Rok 2021

  An improved complex root tracing algorithm for radiation and propagation issues is proposed. The approach is based on a self-adaptive discretization of Cauchy’s argument principle for a C × R space and requires a reduced number of function calls in comparison to other procedures presented in the literature. A few different examples concerning propagation and radiation problems have been considered to verify the validity and efficiency...

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• Acidity trace pollutants of urban rain and roof runoff from selected roof coverings

  Publikacja

  • Ż. Polkowska

  - International Journal of Environmental Sciences - Rok 2010

  W pracy przedstawiono dane dotyczące chemizmu opadów atmosferycznych i wód spływnych pobranych na terenie dużej aglomeracji miejskiej. Oznaczane były: pH, aniony - chlorki, azotany i siarczany oraz metale ciężkie - cynk, ołów, miedź, kadm. Próbki były pobierane na terenie Trójmiasta i w Dąbrówce Tczewskiej koło Gdańska z budynków pokrytych nowymi i starymi pokryciami. Badania prowadzono od kwietnia do czerwca 2006.

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• Membrane-hanging roof analysis: an example

  Publikacja

  • A. Ambroziak

  - TASK Quarterly - Rok 2006

  Artykuł przedstawia analizę konstrukcji membranowo cięgnowej poddanej obciążeniom klimatycznym. Analizowano wstępny wariant nowoprojektowanego przekrycia Opert Leśnej w Sopocie. Dyskutowane są również podstawowe równania modelu sieci gęstej wykorzystanego w opisie zachowania się tkaniy technicznej.

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• Impact of the glazed roof on acoustics of historic interiors

  Publikacja

  • A. Kulowski

  - Rok 2018

  The paper discusses the adverse acoustic phenomena occurring in the semi-open interiors (courtyards, yards) covered with a glass roof. Particularly negative is the rever-beration noise, which leads to the degradation of the utility functions of the resulting spaces. It involves the drastically reducing the intelligibility of speech, loss of natural sounding of music, problems with the sound system, as well as disturbances in the...

• Stability of roof trusses stiffened by corrugated sheets

  Publikacja

  • P. Iwicki

  - Rok 2010

  The present parametric study is devoted to the stability analysis of a set of trusses stiffened by decking of corrugated steel sheets. For different parameters of corrugated sheets the critical loading of the roof is calculated. In the parametrical analysis the threshold bracing condition of the roof is obtained. Then the geometrically non-linear analysis of trusses braced by corrugated sheets was conducted. As a results of non-linear...

• Grey Room

  Czasopisma

  ISSN: 1526-3819 , eISSN: 1536-0105

• Plant Root

  Czasopisma

  ISSN: 1881-6754

• SHM System of the Roof Structure of Sports Arena “Olivia”

  Publikacja

  • K. Wilde
  • M. Miśkiewicz
  • J. Chróścielewski

  - Rok 2013

  The paper presents a structural health monitoring system of the Sports Arena “Olivia” in Gdansk, Poland. The system was installed because of doubts about the roof stability due to observed buckling of the steel truss members. The SHM system was based on nonlinear FEM models used for detection of type of near failure modes of the roof. The application of detailed FEM model in current state updated on data from in situ loading testes...

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