transition region

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transition region

A zone in a seed plant where the vascular tissue of the root changes into the vascular tissue of the stem.

transition region

1. The area in a seed-bearing plant where the vascular tissue of the root changes into the vascular tissue of the stem. In eudicotyledons, the roots have a solid cylinder of vascular tissue surrounded by cortex. The vascular tissues gradually branch apart and reorient themselves in the stem around a central pith.

2. The thin layer of the solar atmosphere that separates the chromosphere from the corona. In the transition region, temperatures increase from a relatively cool 20,000°K in the chromosphere to the 1,000,000°K and higher temperatures of the corona. Transition region chemistry involves the ionization of hydrogen and other elements; the light produced by this region comes from ionized forms of carbon, oxygen, and silicon.

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junction			Some people call the beginning of the transition region by DSC or DMA the softening point, but this may or may not give a value similar to a true softening point, which itself is dependent on the load applied and the heating rate. Coatings Clinic: glass transition, minimum film forming temperature ... by Schoff, Clifford K. / JCT CoatingsTech The transition region is very wide in this material, covering from nearly 20 to 140[degrees]C, showing the maximum at 77[degrees]C. Polyurethanes from tung oil: polymer characterization and composites by Mosiewicki, M.A.; Casado, U.; Marcovich, N.E.; Aranguren, M.I. / Polymer Engineering and Science Transition regions were more narrower than the FS series, and secondary transitions were not observed in storage modulus data. Control of functional site location for thermosetting latexes by Soucek, M.D.; Pedraza, E. / JCT Research			transistorized transit transit area transit bearing transit camp Transit circle Transit compass transit declinometer Transit duty transit instrument transit line transit lounge transit passage transit passenger transit route transit theodolite Transit trade transit visa transit zone transition transition altitude transition element transition layer transition level transition point transition region Transition rocks transition temperature Transition zone transitional transitionally Transitionary transitive transitive verb transitive verb form transitively transitiveness transitivise transitivity transitivize Transitorily Transitoriness transitory transitory action Transjordan Transkei Transkeian translatable translate translating program translation			Transition point transition points transition points Transition Policy and Care Coordination Transition Power and Maintenance Shelter Transition probabilities Transition probabilities Transition probabilities transition probability Transition Probability Geostatistical Software Transition probability matrix Transition probability matrix Transition probability matrix Transition probability matrix Transition Processing Transition Program Transition Program Execution Plan Transition Protein 1 Transition Protein 3 Transition Protein 4 Transition Protein-2 Transition Quarter Transition Radiation and Ionization Calorimeter Transition Radiation Array for Cosmic Energetic Radiation Transition radiation detector Transition radiation detector Transition Radiation Detector Analog Transition radiation detectors Transition Readiness Assessment Tool Transition Redundancy transition region Transition Region and Coronal Explorer Transition Region and Coronal Explorer Transition Region and Coronal Explorer Transition Region and Coronal Explorer Transition Region and Coronal Explorer Transition Region Camera Transition Register Transition Relevant Place Transition Research Institute Transition Research Projects Transition rocks Transition Season Transition Section Computer Transition Services Integration Model Transition Squadron Process Action Team Transition stage Transition stage Transition state Transition state Transition State Analog Transition state theory Transition State Theory-Collinear Exact Quantum Transition Task Force Transition Technologies transition temperature transition temperature transition temperatures transition temperatures Transition time Transition Time Length

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