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Asian Transactions on Basic & Applied Sciences
Volume: 01, Issue: 06, January 2012
ISSN 2221-4291
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Title:
The Distribution of Non-Dipole Part of Earth's Magnetic Field
Authors:
Loay E. George, Bushra M. Ibrahim
Digital Object Identifier:
ATBAS-90118060
Pages:
1 - 7
Abstract:
In this paper, the time variation of declination angle of the non-dipole part of geomagnetic field is investigated for the time period (1900-2010). The International Geomagnetic Reference Field (IGRF) model is adopted as geomagnetic data source for generating the non-dipole part. It is noticed that there are many poles associated with the non-dipole part of the main field, and they distributed over all the globe. Also, it is noticed that some of these poles are moving relative to each other, and some of the poles pairs are appeared and others disappeared. A statistical analysis is conducted to find out the time variation of the first order statistical features of the non-dipole part. The analyses indicated that the time change of statistical parameters systematic.
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Title:
A Statistical Investigation of the Magnetic Field of the Planets: Mercury, Jupiter, and Saturn
Authors:
Loay E. George, Bushra M. Ibrahim, Bushra Q. AL-Abudi
Digital Object Identifier:
ATBAS-40121065
Pages:
8 - 28
Abstract:
In this paper, the geographic and statistical distribution of the main part of the magnetic field are studied for three planets, they are: Mercury, Jupiter, and Saturn. It is noticed that the spatial variations of all the components of the planet Mercury are slow. The statistical distribution of the field magnitude of Mercury shows high tendency toward the lower values. Around %0.09 of Mercury's area have negative orientation in the north component. There is asymmetric behavior in the statistical distribution of all field components of Jupiter. The dynamic range of the magnetic field of Jupiter is nearly [297350, 852580] nT, the statistical distribution of the field magnitude shows a tendency around 3 peak values. Around %97 of Jupiter area have negative orientation in the north component. Also, the statistical parameters indicate that there is a tendency toward the negative values in inclination angle. The distribution of Saturn shows highly axisymmetric dipolar field with zero declination. The statistical distribution of the field magnitude of Saturn shows high tendency toward the lower values. The statistical distribution of north component shows that Saturn has negative orientation.
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Title:
GLOBAL RECESSION, OIL SECTOR AND ECONOMIC GROWTH IN NIGERIA
Authors:
S. O. OLADIPO, J. O. FABAYO
Digital Object Identifier:
ATBAS-30107064
Pages:
29 - 41
Abstract:
This study investigates global recession and the oil sector, based on its effects on economic growth in Nigeria. No doubt the global economy has been experiencing some disturbances. Major economies of the world have been affected and so has the major sectors of these economies especially the ones that has a direct bearing with international trade been affected. The oil sector particularly has been one of the hit. For a country like Nigeria whose international trade is majorly in oil, the effect has become an issue. Empirical analysis using the Ordinary Least Square (OLS) reveals that there was a negative relationship between GDP and oil produced (domestic consumption and export) which is significant at 5% lever of significance i.e. (P < 0.05). The result also showed that there exists decline in the oil sector due to the global recession despite all measures given by government to curb it effects. It was recommended that the federal government needs to deregulate the sector for efficient performance, and also come up with more rigorous policies that will reduce this effects on the real sector most especially the oil sector whose contribute the largest portion of income in the Nigerian economy.
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Title:
Charge transfer complexes of o-toluidine and p-toluidine with p-benzoquinone
Authors:
Asmaa A. Ibrahem
Digital Object Identifier:
ATBAS-70105058
Pages:
42 - 52
Abstract:
The charge transfer complexes of o-toluidine and p-toluidine as donors with p-benzoquinone as acceptor have been studied in methanol at room temperature. The complexes have been isolated and investigated using elemental analysis, electronic (UV – Vis) and Infrared spectrophotometry. The chemical analysis data of the resulted complexes, indicated the formation of 1:1 charge transfer complexes. The equilibrium constant, the extinction coefficient and the free energy of the complexes were calculated. The donor (o-toluidine) site involved in CT interaction was the two nitrogen atoms of the amino group but p-toluidine , it has one nitrogen atom forms hydrogen bonding. The electrical conductivity for the solid CT complexes was measured.
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