Abstract Lightweight concretes are increasingly being used in the construction industry, either for overall lightweighting of structure itself, reducing material consumption and thus CO 2 emissions, or specific reasons such as improving thermal insulation properties acoustic properties. Today, lightweight with expanded aggregates (expanded clay, agloporite) most commonly used. This paper deals ...

The present study investigates extrusion processing of unfoamed and foamed cocoa butter (CB) crystal-melt suspensions (CMSs) with varying crystal volume fraction ΦSFC. Capillary rheometry derived flow curves were fitted the Herschel–Bulkley–Papanastasiou (HBP) model, yield stress to wall shear ratio τ0/τw CB CMSs was compared for various Foamed behaved fluidlike ΦSFC≤11.9% according a brittle p...

introduction: viral hepatitis is one of the causes of premature death in world peoples, according to who reports, five percentage of people are carrier, lethal from this disease is 1%, therefore about 1-1.5 million people each year die from complications of this disease. this disease varies from an acute to chronic illness. the aim of this study was to determine the level of anti-hbs ag (hepati...