منابع مشابه
Properties of Oh/ir Stars with the Iras Lrs Spectra
1607 OH/IR stars associated with IRAS sources are assembled and the IRAS LRS spectra of 980 OH/IR stars are examined in this paper. The nature of the circumstellar dust for these sources is classiied. The distributions of these subgroups of OH/IR stars in the IRAS color{color diagram and the period{color diagram are interpreted with their evolutionary status. The Galactic and the velocity distr...
متن کاملInclusive B-decay Spectra and Ir Renormalons
B-decay physics is gradually turning into a field of precision phenomenology. Inclusive decay measurements provide some of the most robust tests of the standard model. Classical examples are the rate of B̄ −→ Xsγ decays [1] and constraints on the unitarity triangle through the measurement of Vub from charmless semileptonic decays [2]. The advantage of inclusive measurements over exclusive ones i...
متن کاملThe Fourier Transform IR Spectra of C1F and BrF
Fourier transform infrared spectra o f C1F and BrF have been measured with a resolution o f 0.04 cm -1 in the region o f the fundamental and First overtone with an accuracy o f 2 and 4 x 10-3 c m '1, respectively. The rotational structure was resolved up to J" = 58/62 (ClF/BrF), and v’o values have been obtained from rotational analyses o f the v 1 <0, 2 «1, 2 <0 and. in part, 3 «1 and 3 <0 vib...
متن کاملCarbamic acid: molecular structure and IR spectra.
Infrared absorption spectra of mixed H2O, NH3 and 12CO2/13CO2 ices subjected to 1 MeV proton irradiation were investigated. The results of analyses of the spectra suggest formation of carbamic acid at low temperatures. The stability of this compound in the solid phase is attributed to intermolecular hydrogen bonding of the zwitter-ion (NH3+ COO-) structure.
متن کاملIR spectra and IR spectral maps of individual normal and cancerous cells.
The IR microspectra for individual normal and cancerous cells are reported at a spatial resolution that permits a distinction between the nuclear and cytoplasmic regions. The observed spectra reveal large differences in the spectral contributions of RNA, DNA, and phospholipids: metabolically inactive cells show spectral patterns of proteins only, whereas actively dividing cells also show spectr...
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ژورنال
عنوان ژورنال: Bulletin of the Chemical Society of Japan
سال: 1981
ISSN: 0009-2673,1348-0634
DOI: 10.1246/bcsj.54.1693