Krypton evolution

The TF and modified methods based on average shell effects does not reproduce fairly closely local properties like p(0). It diverges with TF and TFD and only after introducing gradient corrections, can we obtain at least a finite value. In the present work we have obtain results quite close to HFvalues (Table 1). As an example, in Table 2 we present the evolution of this value through the different theories in the case of Krypton. The improvement by the present approach is found to be large. 

He found that both the melting curves (Figure 2.1a) and the densities (Figure 2.1b) for xenon and krypton are well above the estimated temperature and density of the lower mantle. One might then suppose that Xe and Kr are in solid form in the lower mantle. If this is indeed the case, implications on noble gas degassing from the mantle and hence on the evolution of the atmosphere would be far-reaching (cf. Section 6.9). However, the formation of solid Xe or Kr seems to be unlikely because of its... 

Besides their presence due to in situ radioactive decay within a given solid sample, radiogenic " He, " Ar, Xe, Pu-fission xenon (and krypton), and likely also U-fission xenon, are also prominent or observable constituents of planetary atmospheres, and their abundance is important in constraining models for planetary atmosphere evolution (see Chapter 4.12). 

Dreibus G, Wanke H (1985) Mars, a volatile-rich planet. Meteoritics 20 367-381 Dreibus G, Wanke H (1987) Volatiles on Earth and Mars A comparison. Icarus 71 225-240 Dreibus G, Wanke H (1989) Supply and loss of volatile constituents during the accretion of terrestrial planets. In Origin and Evolution of Planetary and Satellite Atmospheres. Atreya SK, Pollack JB, Matthews MS (eds) University of Arizona Press, Tucson, Arizona, p 268-288 Eugster O, Eberhardt P, Geiss J (1967) The isotopic composition of krypton in imequilibrated and gas-rich chondrites. Earth Planet Sci Lett 2 385-393... 

Depending on the cited evolution of other gas lasers such as argon, krypton, and heHum-cadmium lasers. In addition to the development of dye lasers whereby the user becomes free from the wavelength limitation and of laser output power, that is, of... 

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