| || Concentration and Grist size spectrum of Airborne dust during operation of earth moving machineries of Alluvial soil
Author : Ganguli, S.C. ;Datta Gupta, B.K. ;Gupte, R.D.
Source : Defence Science Journal ; Vol:13(1) ; 1963 ; pp 115-122
Subject : 551.51 Atmospheric Physics;551.5 Meteorology;551 Geology
Keywords : Spectrum ;Earth ;Dust ;Alluvial ;Soil ;Airborne
Abstract : Concentration and grist size spectrum of airborne dust generated by heavy earth moving machinery while operating on alluvial soil on the Indogangetic plain at Roorkee (29.52DegreeN, 77.53DegreeEN) has been determined.
| || Interaction of Explosive Shocks with Airborne Cylindrical Targets of Elliptical cross section
Author : Singh, V.P.;Singh, S.K.
Source : Defence Science Journal ; Vol:40(3) ; 1990 ; pp 231-242
Subject : 629.7 Aeronautics
Keywords : Cylindrical target;Airborne
Abstract : A theoretical model to find pressure-space history around a cylindrical target of elliptical cross-section has been presented for assessing the damage by warheads exploding in the vicinity of an airborne vehicle. The energy hypothesis has been used to find the attenuation law from a point explosion. The Whitham-Bryson and Gross theory for shock interaction has been modified to take into account the finite strength of incident shock. The theoretical results have also been compared with Heilig's experimental results.