A sway brace fitting clamp is used for lateral bracing of sprinkler or other types of pipe to a structure, to prevent movement of the service pipe perpendicular to the axis of the pipe relative to the structure to which it is attached. The once-through, dry process can advantageously introduce the sorbent and sorbent doping agent dry or preferably as a slurry to enable uniform treatment. The cell is programmed by charging the floating gate with electrons by means of hot electron injection from the channel into the floating gate. A second short-period fiber grating is positioned about the core and at a distance along the long axis with respect to the first short-period fiber grating. These cross-sectional flow areas include a first cross-sectional flow area and a second cross-sectional flow area.