Microbeam analysis of yellow sand dust particles

Microbeam Analysis of Yellow Sand Dust Particles

Synchrotron X-ray Fluorescence Analysis of Dust Particles

Introduction: Synchrotron x-ray fluorescence (SXRF) studies carried out on a microprobe endstation allow non-destructive analysis of both major and trace element abundances in particles only microns in size. The technique has been applied to IDPs captured in the stratosphere to study atmospheric entry effects such as stratospheric contamination and frictional heating [1, 2]. SXRF will also be a...

Wake pairing of dust particles

In the sheath region, the ion flow to the electrode provides a distinctive direction, with the plasma properties different in the direction parallel or perpendicular to the flow. The ion flow is responsible for the generation of the wake potential for a test dust particle, which in the linear approximation is within the Mach cone for supersonic ion velocities. The bottom dust particle appearing...

Saltation of Non-Spherical Sand Particles

Saltation is an important geological process and the primary source of atmospheric mineral dust aerosols. Unfortunately, no studies to date have been able to precisely reproduce the saltation process because of the simplified theoretical models used. For example, sand particles in most of the existing wind sand movement models are considered to be spherical, the effects of the sand shape on the...

Effects of asian sand dust, Arizona sand dust, amorphous silica and aluminum oxide on allergic inflammation in the murine lung.

The aggravating effects of Asian sand dust (SD) and related minerals on the allergic inflammation were examined in the murine lungs. The toxic materials adsorbed onto Asian SD, Arizona SD were inactivated by heat-treatment. ICR mice were administered mineral samples (0.1 mg/mouse) and/or ovalbumin (OVA) (1 microg/mouse) - normal saline (control), Asian SD, Arizona SD, SiO2, Al2O3, OVA, OVA + As...