High Frequency Spectra of the

Moseley FI G J 1913 The high-frequency spectra of the elements Phil. Mag. 26 1024-34... 

Moseley5), in his paper on the high-frequency spectra of the elements, expressed the frequencies of the AMines which he had measured by the approximate equation... 

Moseley publishes his papers on The High Frequency Spectra of the Elements. ... 

Moseley, The high frequency spectra of the elements, Part 1, Phil. Mag. XXVI, 102 (1913) Part 2, XXVII, 107 (1914) also cited in J.R. Partington, A Short History of Chemistry, 3rd ed., p. 360, Dover Publications, New York (1989). 

Henry Moseley, The High Frequency Spectra of the Elements Part I and Part II, Philosophical Magazine 26 (1913) 1024ff, and 27 (1914) 703ff. 

The species S3 (absorbing at 420 nm) and S4 (absorbing at 530 nm) have been detected by reflection spectra in the condensate but the formation of S4 is unexplained [16]. S3 and SO2 have also been observed by Raman spectroscopy in such samples [15] (the expected S4 Raman line at 678 cm was probably obscured by the SS stretching mode of S2O at 673 cm but a shoulder at the high-frequency side of the S2O line indicates that some S4 may have been present). While the reddish colors turn yellow on warming at about -120 °C, the sulfur radicals could be observed by ESR spectroscopy up to 0 °C [10]. If the condensation of S2O gas is performed very slowly at -196 °C the condensate is almost colorless and turns red only if the temperature is allowed to increase slowly. Hence, it has been suspected that S2O is actually colorless like SO2. 

The nitrogen ENDOR spectra of high-spin Mb-F and Hb-F" are very similar to the spectrum of aquo-Mb245). The two high-frequency peaks of the histidine nitrogen described by Aj/2 + 3/2 vN are reported to be about 0.5 MHz lower in frequency... 

Another approach to smoothing involves several segments of the sample, averaging their spectra, and applying the inverse transformation to their mean (ref. 17). Eliminating the high-frequency part of the spectrum, both approaches are also called low-pass filtering. 

Fia. 2. High frequency region of the infrared spectra of naphihazarin A, solution in carbon tetrachloride B, solid, mulled in hex chlorobutadiene (dotted line deuterated) ... 

Measurements of the wave-lengths of lines in the high frequency spectra of iodine and tellurium by the primary ray method have given... 

This paper discusses the impact of wind action on natural-draft cooling towers. The structure of the wind load may be divided into a static, a quasistatic, and a resonant part. The effect of surface roughness of the shell and of wind profile on the static load is discussed. The quasistatic load may be described by the variance of the pressure fluctuations and their circumferential and meridional correlations. The high-frequency end of the pressure spectra and of the coherence functions are used for the analysis of the resonant response. It is shown that the resonant response is small even for very high towers, however, it increases linearly with wind velocity. Equivalent static loads may be defined using appropriate gust-response factors. These loads produce an approximation of the behavior of the structure and in general are accurate. 11 refs, cited. 

The P-Khb values of some nitriles are mentioned in Table 16. The infrared spectra show only one symmetrical v(OH ) absorption and high-frequency shifts of the v(C=N)... 

Hamada et al. 1992 Saito et al. 1992), this increase of absorption is caused by high-frequency conductivity of the free carriers in metallic nanotubes. Relative intensities of the spectra of Fig. 11.7 we have found as a result of the diffuse reflection measurements of powders at low wavenumbers. The discussed above Drude approximations of the low-energy part of the absorption spectra are shown by dashed curves in Fig. 11.7. Comparison of the spectra 1 and 2 shows that hydrogenation decreases high-frequency conductivity of the SWNTs by one order of magnitude. 

Further details concerning the H NMR spectra of kreysigine, floramultine, and multifloramine (1) have been published. (98) The high frequency absorption of the AT-methyl protons (<5 3-0) in [135], isolated... 

In Raman spectra the most essential changes are observed for the G mode. For SWNT with pyrene or naphthalene the high-frequency component of the G mode becomes narrower and the maximum of the band is shifted to the low frequency, the intensity of the low-frequency component of the G mode is decreased. 

One of the advantages of the Fourier transform spectra is the ease with which they can be expanded (or, for that matter, manipulated in many different ways). When the high-frequency portion of the Raman spectra of NMP, KMP and NMA is made comparable in intensity, it becomes apparent that broad and structured bands, similar to those found in the infrared spectra, are present in the Raman spectra of all three investigated compounds as well (Fig. 6). The spectral picture is somewhat less rich in detail than that in the case of the infrared spectra but is, nevertheless, essentially identical in the two cases. 

For the measurement of differential absorption spectra in the visible and ultraviolet spectral region, a light modulation technique was introduced over two decades ago [7]. The principle of this measurement also governs the measurement of infrared VCD. This technique involves the high frequency modulation of the exciting beam between left and right circular polarization states via a photoelastic modulator, and measuring the differential absorption with a lock-in amplifier tuned to the modulation frequency. 

Fig. 37. Impedance spectra obtained by means of microelectrodes on a Fe-doped SrTiC>3 polycrystal at 585 K. (a) Spectrum measured with microelectrodes on one and the same grain demonstrating that only a bulk semicircle occurs, (b) Spectrum measured across a grain boundary, (c) Spectrum measured across another grain boundary there is a pronounced shoulder at the high frequency part of the grain boundary arc. (d) Bulk arc of spectrum (c) indicating the loop due to capacitive coupling to the ground.

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