前面
发表于 2025-3-23 11:48:39
Nonradiative Transitions,iative return, i.e. a return without emission of radiation. Nonradiative processes will always compete with radiative processes. Since one of the most important requirements for a luminescent material is a high light output, it is imperative that in such a material the radiative processes have a much higher probability than the nonradiative ones.
Anticlimax
发表于 2025-3-23 14:41:05
Energy Transfer,diatively and nonradiatively, respectively. In this chapter another possibility to return to the ground state is considered, viz. by transfer of the excitation energy from the excited centre (S*) to another centre (A): . (Figs 1.3 and 1.4).
对手
发表于 2025-3-23 20:59:19
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陈腐的人
发表于 2025-3-24 00:29:37
Cathode-Ray Phosphors,pes, electron microscopes, etc. Cathode rays are a beam of fast electrons; the accelerating voltage in a television picture tube is high (> 10 kV). Figure 7.1 presents a schematic picture of such a tube. The electron beam can be deflected by a magnetic field.
古董
发表于 2025-3-24 03:59:39
X-Ray Phosphors and Scintillators (Integrating Techniques),equires a powder screen, and the term scintillator when a single crystal is required. The physical processes in the luminescence of these two types of materials is, however, in principle the same and comparable to that in cathode ray phosphors (Chapter 7).
paleolithic
发表于 2025-3-24 08:41:53
SE 3 and PHASE 4. The group with normal optic nerve head was the only one included in the HYPERTENSIVE PERIOD of the disease. Borderline, Phase 1 and Phase 2 were included in the PREPERIMETRIC PERIOD, and Phase 3 and Phase 4 were included in the PERIMETRIC PERIOD of this disease. .: Confocal tomogra
Abduct
发表于 2025-3-24 12:12:19
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Fierce
发表于 2025-3-24 18:33:07
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委派
发表于 2025-3-24 21:00:30
G. Blasse,B. C. Grabmaiering temperature and exposure time on stress thermal relaxation and the influence of compressive stress on the stress intensity factor of hole-edge cracks by high strain rate laser shock processing are also analyzed. A new type of statistical data model to describe the fatigue cracking growth with li
小平面
发表于 2025-3-25 02:38:22
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