The Family Handyman on MSN

How To Winterize Your Sprinkler System

Close any open drain valves or test cocks. Open the sprinkler water supply valve. Do this slowly to avoid pressure spikes. Turn the controller back on and run each zone manually to check for leaks, ...
Abstract: In this paper, the implementation of coherent beam combining a seven-channel fiber laser is presented. Channel phase alignment is achieved using a two-stage stochastic parallel gradient ...