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Theoretical and Applied Climatology - Sowohl das statische elektrische Feld als auch die in der Natur auftretenden Wechselfelder wirken auf physiologische Prozesse und das Verhalten der Organismen.... 相似文献
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The method of conformal mapping is applied to the analysis of transient flow toward parallel periodic drains in a semi-infinite aquifer taking into consideration the non-linear boundary conditions on the free surface. The mapping function is expressed as a power series in time and the seepage domain is mapped onto a domain of an auxiliary complex variable. Mapping is performed in such a manner that the free surface will always remain the real axis. Calculations are carried out for different ratios of drain depth to drain spacing using various drain diameter to depth ratios. 相似文献
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Geza Gyuk & Gilbert P. Holder 《Monthly notices of the Royal Astronomical Society》1998,297(2):L44-L48
We investigate the possibility of using globular clusters as targets for microlensing searches. Such searches will be challenging and require more powerful telescopes than now employed, but are feasible in the near future. Although expected event rates are low, we show that the wide variety of lines of sight to globular clusters greatly enhances the ability to distinguish between halo models using microlensing observations as compared with LMC/SMC observations alone. In particular, the halo core radius and power-law exponent can be determined with good accuracy. 相似文献
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We investigate the implications of a bulk rotational component of the Galactic halo velocity distribution for MACHO mass estimates. We find that for a rotating halo to yield a MACHO mass estimate significantly below that of the standard spherical case, its microlensing must be highly concentrated close to the Sun. We examine two classes of models fitting this criterion: a highly flattened 1/ r 2 halo, and a spheroid-like population the density of which falls off as 1/ r 3.5 . The highly flattened 1/ r 2 models can decrease the implied average MACHO mass only marginally, and the spheroid models not at all. Generally, rotational models cannot bring the MACHO mass implied by the current microlensing data down to the substellar range. 相似文献
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K. Kozyakova R. Rukavischnikov Maria Majewska Lubomír Träger Geza Csapó Reviewer M. Burša 《Studia Geophysica et Geodaetica》1972,16(1):88-96
am mam mauau m amaua aaum CG-2¶rt;u muna No; 174-G, 181-G u 228-G nuu m¶rt;a aa. mama mauau aum, m num mum mm 1. 10–4 u n¶rt;um um a. a a¶rt;a ¶rt; a auum ama uum mauaum m mnam. 相似文献
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