Simplified asymptotic models are developed to investigate tropical– extratropical interactions. Two kinds of interactions are illustrated in the model: (i) MJO initiation through extraction of energy from the barotropic Rossby waves and (ii) MJO termination via energy transfer to extratropical Rossby waves. A new feature, in comparison to previous simplified models, is that here these waves int...

An experiment tested the hypothesis that water exposed to distant intentions affects the aesthetic rating of ice crystals formed from that water. ?1 Over three days, 1,900 people in Austria and Germany focused their intentions towards water samples located inside an electromagnetically shielded room in California. Water samples located near the target water, but unknown to the people providing ...

BACKGROUND The disinfectant monochloramine minimizes the formation of potentially hazardous and regulated byproducts, and many drinking water utilities are shifting to its use. CASE PRESENTATION After a drinking water utility serving 2.4 million people switched to monochloramine for residual disinfection, a small number of residents complained of dermatitis reactions. We interviewed 17 people...

Infrastructure systems of many U.S. cities are in poor condition, with many assets reaching the end of their service life and requiring significant capital investments. One primary requirement to optimize the allocation of investments in such systems is an effective assessment of the physical condition of assets. This paper addresses the physical condition assessment of drinking water distribut...