منابع مشابه
Firebrands and spotting ignition in large-scale fires
Spotting ignition by lofted firebrands is a significant mechanism of fire spread, as observed in many largescale fires. The role of firebrands in fire propagation and the important parameters involved in spot fire development are studied. Historical large-scale fires, including wind-driven urban and wildland conflagrations and post-earthquake fires are given as examples. In addition, research o...
متن کاملSpot fires : Fuel bed flammability and ignition capability of firebrands 2
Running head title: 1 Spot fires: Fuel bed flammability and ignition capability of firebrands 2 Anne Ganteaume ; Corinne Lampin-Maillet, Mercedes Guijarro, Carmen Hernando , Marielle Jappiot; 3 Teresa Fonturbel, Pedro Pérez-Gorostiaga and José A. Vega 4 5 : Cemagref UR EMAX, 3275 Route de Cézanne, CS 40061, 13182 Aix-en-Provence, France 6 : Centro de Investigación Forestal, Instituto Nacional d...
متن کاملThe outcome of pregnancy following the cerclage
Background: Cervix insufficiency is diagnosed based on a previous history of pregnancy loss in the second trimester, followed by painless cervical dilatation or premature rupture of the fetal membranes. Abnormal cervical tissue structural appears to be the cause of this complication. There are no diagnostic methods for cervical insufficiency before pregnancy, but magnetic resonance imaging (MRI...
متن کاملOn the Use of a Firebrand Generator to Investigate the Ignition of Structures in Wildland-urban Interface (wui) Fires
An experimental apparatus has been constructed to generate a controlled and repeatable size and mass distribution of glowing firebrands. The present study reports on a series of experiments conducted in order to characterize the performance of this firebrand generator. Firebrand generator characterization and subsequent structural ignition experiments were performed at the Fire Research Wind Tu...
متن کاملModelling firebrand transport in wildfires using HIGRAD/FIRETEC
Firebrand transport is studied for disc and cylindrical firebrands by modelling their trajectories with a coupled-physics fire model, HIGRAD/FIRETEC. Through HIGRAD/FIRETEC simulations, the size of possible firebrands and travelled distances are analysed to assess spot ignition hazard. Trajectories modelled with and without the assumption that the firebrands’ relative velocities always equal th...
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ژورنال
عنوان ژورنال: Science
سال: 2020
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.370.6518.806-g