Scanning 322 • INDEX

MicroRN A/MicroRN A T ools S oft ware/ MicroRNA Target Scan/index.html 45-47... 

Iterative deconvolution Recursive deconvolution Subtractive deconvolution Positional scanning/indexing Mutational surf other methods... 

ITERATIVE DECONVOLUTION RECURSIVE DECONVOLUTION SUBTRACTIVE DECONVOLUTION POSITIONAL SCANNING/INDEXING MUTATIONAL SURF OTHER METHODS... 

ICRS particularly alerts novel reactions and syntheses, and the relevant abstracts can be found by searching the tapes or by scanning Index Chemicus. The first stage of the process is to isolate all the WLNs given for the relevant abstract and to display the structures with relevant CROSSBOW connection table information. 

The PE data was obtained by repeating the scanning of the object, now measuring the received echo at Transducer 1. For every position, (x, y), an A-scan was obtained from which we extracted the back wall echo by means of a time gate. This back wall echo is denoted s(x, y). Note that s x, y) is a time signal that can be written s(f, x, y) where t is the time index. One example of such a back wall echo is shown in Figure 2. 

Vacha M, Yokoyama N, Tokizaki T, Furuki M and Tani T 1999 Laser scanning microscope for low temperature single molecule and microscale spectroscopy based on gradient index optics Rev. Sc/. Instrum. 70 2041-5... 

Thin-layer chromatography (TLC) is used both for characterization of alcohol sulfates and alcohol ether sulfates and for their analysis in mixtures. This technique, combined with the use of scanning densitometers, is a quantitative analytical method. TLC is preferred to HPLC in this case as anionic surfactants do not contain strong chromophores and the refractive index detector is of low sensitivity and not suitable for gradient elution. A recent development in HPLC detector technology, the evaporative light-scattering detector, will probably overcome these sensitivity problems. 

Figure 27.4 shows a charge curve for the cell when it was charged over a period of 12 hours from 3.0 to 5.2 V. During the charge, 16 XRD scans were collected continuously. The time at which each spectrum was acquired is shown in Fig. 27.4. The time for each scan was about 45min. The corresponding spectra are shown in Fig. 27.5. Four hexagonal phases, HI, H2, Ola, and Ol, were observed and their Bragg peaks were indexed in Fig. 27.5. The phase transition from HI to H2 started in scan 4 and...

For the application of QDs to three-dimensional biological imaging, a large two-photon absorption cross section is required to avoid cell damage by light irradiation. For application to optoelectronics, QDs should have a large nonlinear refractive index as well as fast response. Two-photon absorption and the optical Kerr effect of QDs are third-order nonlinear optical effects, which can be evaluated from the third-order nonlinear susceptibility, or the nonlinear refractive index, y, and the nonlinear absorption coefficient, p. Experimentally, third-order nonlinear optical parameters have been examined by four-wave mixing and Z-scan experiments. 

Figure 9.2 Normalized transmittance measured by the Z-scan with and without the collecting aperture for CdTe QDs with the diameter of 4.1 nm excited at 803 nm (0.4 pj pulse ). The open aperture Z-scan corresponds to the nonlinear absorption and the closed aperture Z-scan to the nonlinear refractive index.

The qualitative voltammetric behavior of methanol oxidation on Pt is very similar to that of formic acid. The voltammetry for the oxidation of methanol on Pt single crystals shows a clear hysteresis between the positive- and negative-going scans due to the accumulation of the poisoning intermediate at low potentials and its oxidation above 0.7 V (vs. RHE) [Lamy et al., 1982]. Additionally, the reaction is also very sensitive to the surface stmcture. The order in the activity of the different low index planes of Pt follows the same order than that observed for formic acid. Thus, the Pt(l 11) electrode has the lowest catalytic activity and the smallest hysteresis, indicating that both paths of the reaction are slow, whereas the Pt( 100) electrode displays a much higher catalytic activity and a fast poisoning reaction. As before, the activity of the Pt(l 10) electrode depends on the pretreatment of the surface (Fig. 6.17). 

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