the removal of fine particles less than 2.5 μm in diameter generated from industrial plantsrepresents a serious challenge in air pollution abatement. these particles can penetrate deeply into the lungs and are difficult to remove by cyclones, electrostatic precipitators, and other conventional separation devices. in this paper, the influence of acoustic waves on removing aerosol particles from ...

Abstract Nowadays, the use of waste materials in concrete production is crucial for a clean environment and less cost. This study aimed to enhance some mechanical properties utilizing integral waterproof (IWP) admixture using ceramics as fine aggregate with finer particles improve compressive strength modulus elasticity absorption studied. Studies indicate increase by IWP only also reduction ce...

Limnodrilus hoffmeisteri Claparede, 1862 is a cosmopolitan Oligochaeta widely used as indicator of organic pollution in water bodies. Previous contributions have shown the effects of organic matter and temperature on the life history of the species, although very little is known about the factors that influence its reproduction. This study aimed 1) to test whether the larger weight of individua...

By using the samples of fine sand in Shanghai’s seventh layer, creep tests were performed to investigate deformation characteristics under different groundwater table change. It was revealed that is closely related change: when effective force caused by change smaller than pre-consolidation force, mainly elastic. When bigger compression large and rebound small; viscoelastic plastic equal stress...

A vertical pendulum apparatus has been used to experimentally investigate the impulse and pressure applied by the impact of wet synthetic sand upon the flat surface of a back supported solid aluminum test block. The transferred impulse and maximum pressure applied to the sample were both found to decrease with increasing standoff distance between the bottom of the sand layer and the impact face...

Rendering of sand is an interesting problem that has been addressed at various times in the past. Most efforts have been in the direction of rendering moving sand grains, which are handled as particles rendered with motion-blur. More recently, there have also been efforts at rendering slow moving and static sand particles. In such cases, accurate sampling and rendering of particles becomes impo...

Compounds from the odour-producing glands of the fox Vulpes vulpes were collected. This complex mixture of compounds was used to stimulate the `ascoid' olfactory organs of female sand ̄ies in single sensillum and gas chromatography-linked single sensillum recordings. Sixteen of these compounds were identi®ed using gas chromatography-linked mass spectrometry and amounts present were determined. T...