The article presents the types of aphids that develop and cause damage to maize sunflower crops in conditions Karakalpakstan, developing type each species, period coming field, it causes, criterion economic damage. biological effectiveness natural predator, eaters, golden-eyed entomophagus cultivated biolaboratories was determined controlling aphids, technology using this predator studied. KEYW...

Abstract The present work aimed to develop a semi-empirical criterion able describe impact events on GFRP and CFRP (glass carbon fiber reinforced polymers) composite thin laminates: these are generate large damages involving multiple mechanisms such as matrix cracking, failure and, above all, delamination. Main purpose of this research was obtain an accurate numerical description the region in ...

Terrorist attacks on vulnerable structures and their individual structural members may cause considerable damage and loss of life. However, the research work on response and damage analysis of single structural components, for example, a slab to blast loadings, is limited in the literature and this is necessary for assessing its vulnerability. This study investigates the blast response and dama...

In sheet metal forming processes with complex strain paths, a part is subjected to large plastic deformation. This severe plastic deformation leads to high plastic strain localization zones and subsequent accumulation of those strains. Then internal and superficial micro-defects and in other words ductile damage is created. This damage causes quality problems such as fracture. Therefore, design...