The sun's light thrown back from the moon to the earth and returned from the earth to the moon! It seems never to have occurred to these students of imagination that this so-called earth-light is most intense when the moon is youngest, and therefore illuminates the earth the least.
In the 1980s, vendors and utilities were introduced to more standardized, interactive systems across larger networks, and SCADA use became common at utilities.n the power industry, SCADA is sometimes referred to as part, or all, of an EMS (energy management system). If connected to a power plant, it could be part, or all, of a GMS (generation management system). It also could be swapped with or added to a DMS (a distribution management system).
The use of adhesive skin patches to deliver drugs systemically is a relatively new phenomenon. The first adhesive transdermal delivery system (TDDS) patch was approved by the Food and Drug Administration in 1979 (scopolamine patch for motion sickness). Nitroglycerine patches were approved in 1981.he problem of inter-patient variability in drug absorption by the skin is managed in both systems using a slow rate of drug release from the patch. In the reservoir patch, the membrane limits the rate of drug delivery; in the matrix system, it is the formulation of the drug/polymer matrix.