After a decade which has spawned an ever-enlarging zoo of innationary models (see 1] for a recent review), we are now entering an era where observational advances will be suuciently rapid as to impose signiicant constraints, with the possibility that innationary models may be excluded more quickly than new ones devised. The most important constraints on innationary models arise from the perturb...

Adaptive Histogram Equalization (AHE) often introduces artifacts, for example at the edges of relatively homogeneous regions. In this contribution we propose a variation of global histogram equalization, that avoids these artifacts. The method which is called Interactive Histogram Equalization (IHE) is based on a simpler calculation than AHE. IHE can be a serious competitor for the established ...

In#ation uncertainty is introduced into a basic EOQ model and its potential to make mischief is explored. Among other things, it is shown that even when the expected rate of in#ation is less than the marginal cost of capital, the appropriate discount rate to use in computing a discounted expected total inventory cost will not necessarily be negative. Therefore, the classic EOQ square-root formu...