transition region

transition region

(tran-zish -ŏn) See Sun. See also chromosphere.

transition region

[tran′zish·ən ‚rē·jən]
(astronomy)
A layer of the solar atmosphere only a few hundred miles thick between the chromosphere and the corona across which the temperature rises rapidly from a few times 104K to the order of 106K.
(solid-state physics)
The region between two homogeneous semiconductors in which the impurity concentration changes.
References in periodicals archive ?
Movement elements at other side of transition region, as shown in figure (12).
We' re close enough now that we' re just starting to see Pluto' s geology," said New Horizons program scientist Curt Niebur, "It' s a unique transition region with a lot of dynamic processes interacting, which makes it of particular scientific interest.
The region between snow on one side and rain on the other spans distances from a few kilometers to a few hundred kilometers and is referred to by several names including precipitation-type transition region (used here), transition region, rain-snow boundary, and transition zone.
That is the case even in the vicinity of the high-shear-rate transition region, affirming that only the viscosity values near the wall have to be accurate.
The Bank's economists also issue a stark warning, "Permanently higher military spending in the transition region over the medium term, in response to the renewed geopolitical risks, could erode the peace dividend from the dissolution of the Soviet Union.
12 ft) represents the transition region where disturbances begin to receded and airflow stream lines begin to stabilize and fill the entire duct cross-sectional area.
The EBRDas economists see growth in the transition region of a modest 2.
It was found [19,20] that the X(5) predictions cannot be exactly reproduced by any point in the two parameter space of the IBM, whereas best agreement is obtained for parameters corresponding to a point close to, but outside, the shape phase transition region of the IBM.
The 97 papers here explore such areas as the solar interior and dynamo, the transition region and corona, flares and magnetic helicity, the three-dimensional structure of the outer atmosphere, solar wind and the interplanetary space, and possible anomaly in the current solar cycle.
Regardless of any variable -- fitness level, height, weight, leg length, the amount of time they were given for the trip, whether they were indoors or out -- all the students employed a mixture of walking and running when they were moving at speeds within the transition region.
As a comparison, SDO generates as much data in a single day as our Transition Region and Coronal Explorer (TRACE) instrument - launched in 1998 - produces in five years," said Dr.

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