The recovery of a water switch has been studied by means of Schlieren diagnostics. it was found that a vapor bubble which begins to expand 2 /spl mu/s after the electrical breakdown and decays after 1 ...

In this paper, we investigate the design of a water level sensor device that is able to detect and control the level of water in a certain water tank or a similar water storage system. The system ...

Impacted neighborhoods include Chevy Chase DC, Friendship Heights, Tenleytown, AU Park, Spring Valley, Cleveland Park, Woodley Park, Van Ness, and more.