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pro vyhledávání: '"Poorna C. Pal"'
Autor:
Poorna C. Pal, Sarkis Joseph Khoury
Publikováno v:
American Journal of Economics and Sociology. 59:119-131
POORNA C. PAL [*] ABSTRACT. We analyze the own-source revenues of California state and local governments relative to the State's personal income in order to examine the extent to which the growth in non-tax revenues has circumvented the reduction in
Autor:
Poorna C. Pal
Publikováno v:
GEOPHYSICS. 56:1259-1266
The integration of resistivity logs and soundings data, essential for resolving the problems of ambiguity and nonuniqueness ubiquitous in the interpretation of electrical resistivity soundings, is generally difficult because the former contain far mo
Autor:
Poorna C. Pal
Publikováno v:
Journal of geomagnetism and geoelectricity. 43:409-428
The correlation of long-term trends in the geomagnetic field's strength and polarity stability is re-examined using all the available palaeointensity data. The Phanerozoic virtual dipole moments decrease systematically with age, whereas the Precambri
Autor:
Poorna C. Pal
Publikováno v:
Physics of the Earth and Planetary Interiors. 64:279-289
The palaeomagnetic palaeointensities, natural remanent magnetic intensities of ocean-floor basalts and MAGSAT anomalies over the central Pacific and North Atlantic oceans suggest that the geomagnetic field was appreciably stronger during the ∼ 35 M
Autor:
Poorna C. Pal
Publikováno v:
Nature. 303:513-516
Reconstructions of past continental configurations help our understanding of the evolution of planetary surface morphology and impose valuable constraints on the models for planetary dynamics. The problem is that although well established palaeogeogr
Autor:
Paul H. Roberts, Poorna C. Pal
Publikováno v:
Nature. 331:702-705
Palaeomagnetically observed reversals so far provide the strongest evidence1 that reversals originate from processes of core magnetohydrodynamics (MHD), thus furnishing a crucial constraint for geomagnetic dynamo modelling. The long-term variations i
Autor:
Poorna C. Pal
Publikováno v:
Geophysical & Astrophysical Fluid Dynamics. 44:189-205
The geomagnetic field and its frequent polarity reversals are generally attributed to magnetohydrodynamic (MHD) processes in the Earth's metallic and fluid core. But it is difficult to identify convincingly any MHD timescales with that over which the
Autor:
Poorna C. Pal
Publikováno v:
GEOPHYSICS. 50:1179-1182
The inclined thick dike extending infinitely in the direction of its dip, a common geometric approximation in geophysics, has been used in a variety of magnetic inversion techniques. However, in space techniques (Johnson, 1969, Won, 1981) and frequen
Autor:
K. M. Creer, Poorna C. Pal
Publikováno v:
Nature. 320:148-150
The possibility that the observed 26–32-Myr periodicity in the records of extinction events1 and astrobleme ages2 was caused by periodic episodes of physical bombardment of the planetary surface has raised the likelihood that such an astronomical c
Autor:
Poorna C. Pal
Publikováno v:
Geomagnetism and Palaeomagnetism ISBN: 9789401068963
The geomagnetic field and its reversals are usually attributed to magnetohydrodynamic (MHD) processes in the Earth’s fluid and metallic outer core. But changes in. the reversal frequency perhaps result from thermal or velocity perturbations at the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9598305f0805899b52fcc9fa4e50dec
https://doi.org/10.1007/978-94-009-0905-2_24
https://doi.org/10.1007/978-94-009-0905-2_24