混合,搀杂
发表于 2025-3-25 04:54:26
,Beta″ Alumina: A Solid Electrolyte as a Solid-State Laser Host,ivalent and trivalent cation motion permits optically active ions to be introduced in the structure by low temperature ion exchange techniques. The synthesis, structure and optical properties of Nd. exchanged B″ alumina are reviewed in this paper. The material exhibits interesting optical properties
Tidious
发表于 2025-3-25 11:28:23
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Ambiguous
发表于 2025-3-25 15:03:27
Excited State Absorption of Cr3+ in Low Ligand Field Hosts,cific case of Cr., a single configurational coordinate model is developed to predict the ESA consequences of a .T. (low ligand field) or (high ligand field) lowest excited state. Pulse-probe ESA measurements are conducted for Cr. in a fluoride elpasolite (K.NaScF.) and in two oxide garnets (GSGG and
Melanoma
发表于 2025-3-25 15:58:07
Spectroscopy of Post-Transition Metal Ions, very well understood and it is worthwhile to give a synthesis of the main results. We will show how important is the role played by the metastable level .Alu (.Po) for T1.- like ions or T1. for Cu.-like ions. Particular attention will be devoted to certain application such as the scintillator Bi.Ge.O. and to the development of solid-state lasers.
brassy
发表于 2025-3-25 22:04:50
Optical Spectroscopy of Color Centers in Ionic Crystal,lattice defects in the alkali halides, the alkaline earth halides and oxides and a miscellany of diverse ionic crystals. In this article I discuss some aspects of color center physics which are subsequently important in the development of color center lasers.
心神不宁
发表于 2025-3-26 02:18:49
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拘留
发表于 2025-3-26 06:15:18
5. This meeting was organized by the International School of Atomic and Molecular Spectroscopy of the "Ettore Majorana" Centre for Scientific Culture. The objective of the course was to present and examine the recent advances in spectroscopy and theoretical modelling relevant to the interpretation o
ostrish
发表于 2025-3-26 08:29:11
miting the system‘s expressive power; and by restricting our attention to systems of Acyclic Horn Defaults. These acyclic theories can encode inheritance hierarchies of the form examined by Touretzky, but are strictly more general..This analysis suggests several directions for future research: findi
Ophthalmologist
发表于 2025-3-26 15:46:12
R. G. Pappalardoance of a more general problem which we call the .. In this paper, we provide a preliminary definition of the knowledge independence problem; we leave to future work further development of the obvious connections with statistical independence. Using our preliminary definition, we show how to represe
ADAGE
发表于 2025-3-26 20:15:34
B. Di Bartoloc (a refinement of Moore‘s autoepistemic logic), in which revision of both the speaker‘s and hearer‘s attitudes can be adequately described. As a collateral benefit, efficient automatic reasoning methods for the formalism exist. The theory has been implemented and is now being employed by an utteran