Under poor weather conditions (rain, fog, etc.), both the contrast and color of an image will be degraded. To reverse these effects, spatially adaptive algorithms have previously been developed to improve images under these conditions. Due to the scattering of light, the degradations of an image will be proportional to the distance from the point where the image was taken -this requires de-weat...

We show that the presence of an anomalous UA(1) factor in the gauge group of string-derived models may have the new and important phenomenological consequence of allowing the vanishing of StrM2 in the “shifted” vacuum, that results in the process of cancelling the anomalous UA(1). The feasibility of this effect seems to be enhanced by a vanishing vacuum energy, and by a “small” value of StrM2 i...