Wyniki wyszukiwania dla: horizontal markings

• Horizontes Antropologicos

  Czasopisma

  ISSN: 0104-7183

• Natural convection from horizontal conic.

  Publikacja

  • S. Leble
  • W. Lewandowski

  - Rok 2003

  Przedstawiono rozważania teoretyczne konwekcji swobodnej od powierzchni bocznej poziomego stożka.

• Lightning impulse efficiency of horizontal earthings

  Publikacja

  • S. Wojtas

  - Przegląd Elektrotechniczny - Rok 2012

  System uziemień współczesnych obiektów jest zwykle bardzo rozległy, a na łączenie poszczególnych elementów uziemiających za pomocą głównej szyny wyrównania potencjałów uwzględnia także uziemienia stacji transformatorowej. Ocena przydatności takiego systemu uziemień do celów ochrony odgromowej nie jest prosta, bo tylko jego część określana, jako długość efektywna bierze udział w odprowadzaniu do gruntu prądu piorunowego. Praca zawiera...

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• Analysis of the Application of Horizontal Directional Drilling

  Publikacja

  • M. Bratnikow

  - World Scientific News - Rok 2019

  Construction works are often considered to be very intrusive for the environment. Project designers assume deep excavations, or a complete replacement of the ground within the investment, which sometimes changes the initial conditions drastically. The problem started to appear in places, where the terrain is complicated and the excavation is burdensome. Some of state authorities...

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• 3D buckling analysis of a truss with horizontal braces

  Publikacja

  • M. Krajewski

  - Rok 2012

  The present research is devoted to the study of out-of-plane buckling of a truss with horizontal braces. The truss is a model of real roof truss scaled by factor ¼. A linear buckling and a non-linear analysis with geometric and material nonlinearity were carried out. The truss buckling and limit load for different stiffnesses and number of braces are found. Numerical analysis are verified by experiment. Threshold bracing stiffness...

• 3D Buckling Analysis of a Truss with Horizontal Braces

  Publikacja

  • P. Iwicki
  • M. Krajewski

  - Mechanics and Mechanical Engineering - Rok 2013

  The present research is devoted to the study of out–of–plane buckling of a truss with horizontal braces. The truss is a model of real roof truss scaled by factor 1=4. A linear buckling and a non–linear analysis with geometric and material non–linearity were carried out. The truss buckling and limit load for different stiffnesses and number of braces are found. Numerical analysis are verified by experiment. Threshold bracing stiffness condition...

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• Design of horizontal axis wind and water turbines

  Publikacja

  • T. Koronowicz
  • J. Szantyr

  - Rok 2016

  The basic hydrodynamic principles of horizontal axis turbines are presented. Computational methods based on vortex theory for design of such turbines and for calculation of their hydro or aerodynamic characteristics are described in detail. These methods are applicable both to wind and water turbines. The influence of detailed turbine geometry on its characteristics is presented. Several practical computational examples of different...

• Assessing vehicle restraint systems on horizontal curves

  Publikacja

  • M. Budzyński
  • D. Bruski

  - MATEC Web of Conferences - Rok 2018

  Horizontal curves, an element of road infrastructure, have a statistically high number of accidents. Considering that horizontal curves in the last ten years have had app. 10% of all road accidents representing app. 14% of all fatalities on Polish roads, the issue is serious and requires more research and proper road safety treatments. Data for 2007 - 2016 show that in the case of accidents on horizontal curves app. 45% of the...

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• Free Convection Heat Transfer from Horizontal Cylinders

  Publikacja

  • J. Cieśliński
  • S. Smoleń
  • D. Sawicka

  - ENERGIES - Rok 2021

  The results of experimental investigation of free convection heat transfer in a rectangular container are presented. The ability of the commonly accepted correlation equations to reproduce present experimental data was tested as well. It was assumed that the examined geometry fulfils the requirement of no-interaction between heated cylinder and bounded surfaces. In order to check this assumption recently published correlation equations...

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• Wettability of Horizontal Stainless Steel Tube by Nanofluid Droplets

  Publikacja

  • J. Cieśliński
  • K. Ronewicz

  - Rok 2013

  The goal of the present work was the experimental determination of the contact angle of three nanofluids, i.e. water-Al2O3, water-Cu and water-TiO2 on horizontal stainless steel tube of 1.6 mm OD. Of particular interest was the effect of nanoparticle concentration (0.01%, 0.1%, and 1% by weight) on droplet contact angle.