Gas sensor registers the presence of ammonia gas (NH3). It registers gases the best while they are in the liquid form, but since we cannot find them in that state that often, it measures a good ...

American Electric Power Co. Inc.-1.49% $52.13B ...

this integrated structure makes the sensor smaller and also reduces the loss and interference during the transmission of electrical signals. Ammonia sensing technology demonstrates potential for a ...

High ammonia levels are toxic and cause symptoms such as headache, confusion, disorientation, excessive sleepiness, and difficulty concentrating. These symptoms reflect ammonia’s dangerous effect on ...

Poscierre: January 31 at 7:41:58 PM EST Loading Chart for XEL ...

After hours: January 31 at 6:40:37 PM EST Loading Chart for XELB ...

The time when Xcel's 1.5 million electric customers pay most for electricity is going to change. The question is how much of the evening will be at the higher rate. Xcel and the Public Utilities ...