evacuated tube

e·vac·u·a·ted tube

(ē-vak'yū-āt-ĕd tūb)
A plastic or glass sealed vacuum tube used to collect a blood specimen obtained through venipuncture.
References in periodicals archive ?
For instance, Mustafa Ali Ersoz [5] studied the effect of six different working fluids on the thermal performance of evacuated tube solar collectors with GAHP, where the air velocity is considered in three different values (and the results showed that the maximum energy transfer is associated with THPETC-Acetone).
Tenders are invited for design, supply, installation, testing and commissioning of evacuated tube collector based solar water heaters at leh depot and kargil depot in the state of j and k under punjab state office.
In addition to the 10 Stokvis DF100-6 Evacuated Tube Collectors - offering a net absorber area 10.
This includes centralised solar water heating for building complexes through an evacuated tube collector system.
The efficiency of evacuated tube collectors is somewhat lower than for flat plate collectors because these absorber coatings in the inner tubes are narrower than the ones for flat tubes.
They used two types of thermal panels: an evacuated tube type and a flat plate type, what Reeve calls "black paint in a box with tubes going through it that heats water.
The glycol solution is heated by a large bank of 60 Apricus evacuated tube collectors.
The system uses an advanced triple layer evacuated tube technology with high absorption and low emission characteristics.
Each evacuated tube consists of a clear glass outer tube and a glass inner tube, which is coated with a dark UV absorbing film.
The air then returned around the outside of the copper tube to the top from where it could flow through a following similar evacuated tube.
Among the topics are the time optimal control of mechatronic systems, an explicit formula for estimating aerodynamic drag on trains running in evacuated tube transportation, the numerical simulation of load optimization in a multi-dimensional vibration test, a phase unwrapping method based on the windowed Fourier transform, the theoretical study of mechanical properties by using the acoustic signature, and effective Internet communication filtering.