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Intensity compositional dependence

The first, and to this writing still only case of a ketone a-cleavage-recombi-nation sequence in the steroid field was reported by Butenandt, who found that 17-ketones epimerize at C-13. Ultraviolet irradiation of either stereoisomer produces an equilibrium mixture in which the thermodynamically more favored 13a-compound cf. (15)] with cw-fusion of rings C and D predominates at room temperature. As ultraviolet absorption energies and intensities of the two isomeric ketones are practically identical, the equilibrium composition depends largely on the rate of the competing recombination process from (14). For further examples of the photoisomerization at C-13 of 17-ketosteroids, see ref. 8, 12, 15 and 43. [Pg.296]

Protein-rich wastewaters have been reported in the food industry [108] and dairy industry [109]. The amino acid rich wastewaters have been reported in the amino acid producing industry [110]. Most literature references, up to date, deal with the treatment of dairy wastewater(s). Dairy wastewaters are produced at different rates and with different composition depending on the type of dairy product and the intensity ot the production campaign [109]. Physical, chemical, and biological parameters of the dairy wastewaters change from one plant to another and in between individual production batches and also depend on the technology used in production [111]. [Pg.379]

We return now to a problem introduced in section 9.26, namely the dynamics of excitation by a very short pulse laser of high intensity. This has been studied [584] by two different theoretical approaches. First, quantum calculations plotted frame by frame at different times during the laser pulse reveal how the composition of the eigenstates varies and how the system may re-emerge either in an excited state or return to the original composition depending on the laser parameters (see figs. 10.14 and 10.15). [Pg.397]

The major proportion of weathered material is transported from the continents into the oceans by rivers as dissolved or suspension load, i.e. in the form of solid particulate material. Depending on the intensity of turbulent flow suspension load generally consists of particles smaller than 30 microns, finer grained than coarse silt. As the mineral composition depends on the type of parent... [Pg.3]

Whereas the free energy of mixing Gm is an extensive property and is a function of N and N2 (and of course p and T), the free energy density of mixing gm is an intensive property depending only on the composition of the mixture besides p and T. Equation (6.12) can then be written as... [Pg.213]

The fact that the pi are intensive properties implies that they can depend only on other intensive properties such as temperature, pressure, and intensive composition variables such as the mole ratios, or the mole fractions. Since the pi depend on the mole numbers only through intensive composition variables, an important relation is easily derived. [Pg.223]

Fig. 4.27 Composition dependence of the relative intensity of CD for poly(C), poly(C) + s-SPG, poly(A), and poly(A) + s-SPG. Fig. 4.27 Composition dependence of the relative intensity of CD for poly(C), poly(C) + s-SPG, poly(A), and poly(A) + s-SPG.
It shows the main paths of polar function groups (carboxyl, hydroxyl, and carbonyl) formation, what stipulate change properties of a surface. The composite dependence with an extreme character between intensity of processing and change of properties of a surface is observed. As an example on Figure 11 are given the test data of adhesion of ink to a surface of PE, treated by a flame of the propane at it different dose (the air delivery was constant) [56]. [Pg.106]

Blends of PPO and copolymers in the narrow composition range between 67.8 and 68.6 mole % pClS exhibit phase separation as evidenced by the detection of two glass transitions however, these transitions are not as well defined as those of the incompatible PpCIS/PPO, PoClS/PPO, and higher pClS copolymer/PPO blends. They are considerably broadened, diminished in intensity (AC ), and shifted in temperature when compared to the correspondiSg unblended components. This intermediate character of these "transitional" blends is illustrated by the Tg-composition dependence of... [Pg.217]

Furthermore, FE has considerable potential as a probe of the locus of fracture in a multi-component system such as a composite. The intensity, time dependence, and species emitted appear to be sensitive to where fracture has occurred. For example, FE may be useful for determining when delamination has occurred and to what degree. In conjunction with acoustic emission, the failure mechanisms may be better understood (perhaps at the molecular level) through studies of FE. [Pg.195]


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See also in sourсe #XX -- [ Pg.229 , Pg.230 , Pg.231 , Pg.232 ]




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Composition dependence

Intensity dependence

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