Wyniki wyszukiwania dla: TRANSITION%20CURVE

• Smoothed transition curve for railways

  Publikacja

  • W. Koc

  - Przegląd Komunikacyjny - Rok 2019

  The work draws attention to the existing situation in the area of transition curves used in the geometric layouts of the railway track. Difficulties in the practical implementation and maintenance of very small horizontal ordinates of the transition curve and the ordinates of the gradient due to cant in the initial section, appearing on smooth transition curves, were indicated. The main reason for this situation was the excessive...

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• Extending transition curve in analytical design method

  Publikacja

  • W. Koc

  - Przegląd Komunikacyjny - Rok 2016

  The paper presents the problem of extending the transitional curves, using for this purpose an analytical design method. The basis for the analysis of numerical calculations were carried out for a wide set of parameters characterizing the standard geometric system. We considered an importance of the size of radius of the circular arc and return angle of route on the obtained results after the formulation of appropriate theoretical...

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• New transition curve adapted to railway operational requirements

  Publikacja

  • W. Koc

  - JOURNAL OF SURVEYING ENGINEERING-ASCE - Rok 2019

  The paper points to the limited possibilities of improving the existing situation in the area of transition curves used in geometrical layouts of the railway track. Difficulties in the practical implementation and maintenance of very small horizontal ordinates of the transition curve and the ordinates of the gradient due to cant in the initial section, appearing on smooth transition curves, were indicated. The main reason for this...

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• Transition curve with smoothed curvature at its ends for railway roads

  Publikacja

  • W. Koc

  - Current Journal of Applied Science and Technology (British Journal of Applied Science & Technology) - Rok 2017

  In the paper, in view of a railway ballasted track, a new concept of transition curve of linear form of curvature along its length and smoothed extreme regions is presented. For this purpose use has been made of an original, universal method for identifying transition curves by means of differential equations. Some general curvature equations for three regions investigated have been determined to be followed by appropriate parametric...

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• Transition

  Czasopisma

  ISSN: 0041-1191 , eISSN: 1527-8042

• Asia in Transition

  Czasopisma

  ISSN: 2364-8252 , eISSN: 2364-8260

• PHASE TRANSITIONS

  Czasopisma

  ISSN: 0141-1594 , eISSN: 1029-0338

• Translation

  Czasopisma

  ISSN: 2169-074X , eISSN: 2169-0731

• Navier number and transition to turbulence

  Publikacja

  • P. Ziółkowski
  • J. Badur

  - Journal of Physics : Conference Series - Rok 2014

  The motivation behind this article is to explain a role of the Navier number (Na -dimensionless slip-length) in prediction of closures for laminar to turbulent transition undergoing via eddies detachment from the slip layer in nano-cannals. Additionally the role of the Navier number Na in universal modeling of phenomenon of enhanced mass flow rate reported in micro- and nano-channels has been explained. The Na number should be...

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• Directions of Energy Transition of Uzbekistan

  Publikacja

  • K. Gomółka
  • P. Kasprzak

  - Rok 2022

  The aim of the paper is to present the changes in the Uzbekistan energy market over the past few years. Uzbekistan is self-sufficient in terms of energy resources, the exploitation of which will last for many years. In 2019, the government adopted the "Concept Note ensuring electricity supply in Uzbekistan in 2020-2030" strategy, which announced the modernization of gas and coal power plants and the construction of new energy facilities,...

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