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Warman

Hazzon, M. J. and E. A. Warman, 1986, A Rational Approach to Emergency Planning AMS 1 ranee, November. [Pg.480]

Sowinski M. Warman, Lead Salts of Trinitro Phenols. I. Preparation and Properties of Methoxy Picric Acid and Lead Methoxy Picrate , PATR 3344(1966)... [Pg.758]

Remmers M, Neher D, Griiner J, Friend RH, Gelnick GH, Warman JM, Quattrocchi C,... [Pg.221]

Grozema FC, Siebbeles LDA, Gelinck GH, Warman JM (2005) The Opto-Electronic Properties of Isolated Phenylenevinylene Molecular Wires. 257 135-164 Guiseppi-Elie A, Lingerfelt L (2005) Impedimetric Detection of DNA Hybridization Towards Near-Patient DNA Diagnostics. 260 161-186 Guo Y, see Coleman AW (2007) 277 31-88... [Pg.259]

Warman JM, de Haas MP, Rupprecht A (1996) Chem Phys Lett 249 319... [Pg.122]

Schuddeboom W, Jonker SA, Warman JM, Leinhos U, Kiihnle W, Zachariasse KA (1992) Excited-state dipole moments of dual fluorescent 4-(dialkylamino) benzonitriles. Influence of alkyl chain length and effective solvent polarity. J Phys Chem 96 10809-10819... [Pg.302]

Mozumder and Magee, 1967), the success of the geminate pair model in kinetics (Warman et al., 1969 Rzad et al, 1970) and in free-ion yield determination (Hummel and Allen, 1966 Freeman, 1963a, b) has been rationalized on the basis that in multi-ion pair spurs all but the final e-ion pair would quickly neutralize due to intense internal coulombic interaction. Therefore, emphasis is laid in this section on the geminate pair with two caveats ... [Pg.230]

In a microwave cavity containing an ionized gas, the resonant frequency shifts in proportion to the electron density n (Slater, 1946). This effect has been used by Warman and Sauer (1970, 1975) to measure n as a function of time... [Pg.250]

The determination of electron concentration by the frequency shift method is limited to time resolution greater than a few hundred nanoseconds and is therefore not applicable to liquids. The microwave absorption method can be used virtually down to the pulse width resolution. Under conditions of low dose and no electron loss, and assuming Maxwellian distribution at all times, Warman and deHaas (1975) show that the fractional power loss is related to the mean electron energy (E) by... [Pg.251]

Here the left-hand side is the ratio of power loss at time t, when the mean electron energy is (E), to that at thermalization, and C and n are determinable constants. This idealized equation is not expected to be valid in presence of the Ramsauer effect, but Warman and deHaas apply it anyway to N2, Ar, and He at atmospheric pressure. The method relates the gradual decrease of collision frequency to an increase in conductivity, which finally rides to a plateau interpreted to be the thermal conductivity. The time needed to reach 90% of the thermal conductivity is called the thermalization time (see Table 8.1). [Pg.251]

The method is also applicable to liquids and solids (Sowada and Warman, 1982 Sowada et at, 1982) for the condensed rare gases, a correction is needed for recombination. Sowada et at (1982) obtained the following values of thermalization times, within 20% accuracy, given here in parenthesis as (phase, temperature... [Pg.251]

Shimamori and Hatano (1976) describe a Febetron-injected microwave cavity apparatus for measuring electron concentration following pulse irradiation. Its application to thermalization in Ar and CH4 is similar to the method of Warman and Sauer (1975). In a related experiment, Hatano et al. (private communication) measure the electron collision frequency directly. [Pg.252]

Sowada and Warman (1982) have described a dc conductivity method for Ar gas at 295 K and 45 atm. Following a 20-ns pulse of irradiation, the conductivity rises to a peak at -50 ns, due to the Ramsauer effect, before settling to a plateau, which is ascribed to thermal conductivity since the collecting field is very low. Since there is little electron loss, the conductivity profile is proportional to the mobility profile this in turn can be considered a kind of image of collision frequency as a function of electron energy. The time to reach the conductivity plateau, -150 ns, is the measure of thermalization time in the present case. At a density of -9 X 1021 cm-3, the conductivity maximum vanishes, indicating the disappearance of the Ramsauer minimum according to Sowada and Warman. [Pg.253]


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See also in sourсe #XX -- [ Pg.330 ]

See also in sourсe #XX -- [ Pg.305 ]




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