The reasons which cause the defects have been analyzed,and afterwards,the measures to prevent and cure weft direction defects have been introduced from points of view of yarn property,loom condition and technique.

The mass transfer rate at the forward stagnation point of the droplet is derived to show the effect of electrostatic forces on the collection of submicron particles.

After reviewing the history of the research on bias and the perception of bias in this paper,we explained the experimental research on “bias blind spot” and “introspection illusion” and analyzed the theoretical interpretation of the perception of bias.

Analytical prediction of radial dryout point for thin film evaporation in heat pipes with micro-groove evaporator;