Passive aeration units are units that operate without the need for electric energy.
Another device used by aircraft, a passive infrared unit sometimes called forward-looking infrared (FLIR), provides night vision.
The device contains a radiofrequency (RF) transmitting primary, a 15mm air gap and a passive secondary unit that produces the required direct current waveform.
The ability to follow echolocating bats with the microphone greatly enhanced call quality and hence identifications, while moving between available microhabitats improved chances of detecting bat species not flying in the vicinity of the fixed location passive monitoring unit.
A single passive GPS unit may be place anywhere in the engine compartment where the heat will not damage it.
Results for biophysical indicators showed a steady improvement in water quality with passage through campus dams, emphasising a need to regard the impoundments as part of a treatment chain, rather than as passive storage units.
The official, Gholamreza Jalali, who is the director of Iran's Passive Defense Organization, a unit of the Islamic Revolutionary Guards Corps, did not cite a particular threat or specify when the relocation might take place.
mean ± standard deviation Muscle tightness, defined as the change in passive tension per unit change in length, is an indication of a muscle's passive tension to length change.
Smart technologies, specifically a 'lifeline' unit, passive infrared detectors, flood detectors, heat sensors, and smoke detectors were installed in 1,950 newly built housing developments designed to offer housing with care with an onsite staff team for those who could not manage in their own homes.
Two more three-unit passive town houses are in the design phase, and construction is scheduled to start in the Ivy City neighborhood of Northeast Washington in the spring.
