All engineers know resistance is usually bad news. It generates heat. It reduces efficiency. It wears out components and cuts operational lifetimes. However, resistance is not the only kind of ...

Classic techniques like videofluoroscopy, stationary manometry, and ambulatory 24 h pH-metry are routinely used in the clinic to study patients with dysphagia, chest pain and reflux-related symptoms.

The measurement of pH is the predominant modality used to diagnose gastroesophageal reflux (GER) in children. However, pH monitoring provides only part of the answer with respect to whether a child ...

Transformers are very reliable devices and can provide service for a long time if regularly maintained and serviced. They’re also the single most costly item in any substation. To protect against ...

We’ll begin by covering some of the basic mathematical relationships that everyone learns in electrical trade (or engineering) school. Unfortunately, many people seem to forget these basics in the ...

Insulation failure is a leading cause of electrical fires and system downtime, often occurring silently before any visible signs appear. Regular insulation resistance testing helps detect early ...

Please provide your email address to receive an email when new articles are posted on . Increased acid exposure time and symptom-reflux correlation detected by esophageal pH-impedance monitoring ...

Many voltage regulators are of the fixed output variety and include the voltage divider internal to the regulator. There are definite advantages to this approach, which allows active voltage trimming ...

In the second part of this series on the highs and lows of resistance measurements, I illustrated the differences between two-wire and four-wire resistance measurements on an actual low ohmic sample ...