IOSR-JAP   Volume-7 ~ Issue-5 ~ Sep-Oct 2015

ABSTRACT: A nuclear softness model with weaken parameter is introduced for the first time to describe the structure of superdeformed (SD) bands in A~190 mass region. The data set includes fourteen SD bands in Hg-Tl-Pb nuclei. For each band the model parameters and the unknown bandhead spin are deduced by fitting the calculated transition energies𝐸𝛾𝑐𝑎𝑙with the recent experimental ones 𝐸𝛾𝑒𝑥𝑝. A computer simulated search program depending on iteration procedure has been used in the fitting. The excellent agreement between 𝐸𝛾𝑐𝑎𝑙 and𝐸𝛾𝑒𝑥𝑝presents reasonable support of the model.The calculated level spins I, rotational frequencies ℏ𝜔, the kinematic 𝐽 1 and dynamic 𝐽 2 moments of inertia are examined.

[1]. P.J. Twin et al, Phys.Rev.Lett.57 (1986)811.
[2]. B.Singh et al, Nuclear Data Sheets 97 (2002) 241.
[3]. E.Idguchi et al, Phys.lett. B86 (2010)18.
[4]. NNDC (National Nuclear Data Center), Brookhaven National Laboratory (Cited on June 2012) Downloaded fromhttp://www.nndc.bnl.gov/chart/
[5]. E.F.Moore et al, Phys.Rev.Lett. 63 (1989) 360.
[6]. D.Ye et al, Phys.Rev. C41 (1990) R13.

ABSTRACT: The total electron content (TEC) is an important parameter to monitor for possible space weather impacts. The radio waves that pass through the earth's ionosphere travel more slowly than their free space velocity due to group path delay of the ionosphere. This group path delay is directly proportional to the TEC of the ionosphere. Using dual frequency GPS receiver at low latitude stations of Ile-Ife (7.52oN, 4.28oE), Addis Ababa (9.04oN, 38.77oE) and Bangalore (13.03oE, 77.57oE), all located within 0 - 15oN of the equatorial anomaly region, the measurement of ionospheric TEC for 2012 has been carried out. The data from the three stations were used to study the diurnal, monthly and seasonal variations of TEC. The diurnal variations maximize between 10:00 – 16:00UT, 08:00 – 14:00UT and 06:00 – 12:00UT for Ile-Ife, Addis Ababa and Bangalore stations respectively. The diurnal variations showed wave-like pertubation during disturbed and quiet periods at Bangalore and Addis Ababa stations.

[1]. Rama Rao, P. V. S., Gopi Krishna, S., Niranjan, K., & Prasad, D. S. V. V. D., Temporal and spatial variations in TEC using simultaneous measurements from the Indian GPS network of receivers during the low solar activity period of 2004–2005, Ann. Geophys., 24, 3279–3292, http://www.ann-geophys.net/24/3279/2006/, 2006.
[2]. Ariyibi, E.A., Doherty, P., Coster, A.J. and E.O. Joshua, E.O., Diurnal variation of ionospheric TEC and S4 index, during the period of low geomagnetic activity at Ile-Ife, Nigeria, Arab. J. Sci. Eng., 2013a.
[3]. Ariyibi, E.A., E.O. Joshua, and B.A. Rabiu, Studies of Ionospheric Variations During Geomagnetic activities at the Low-Latitude Station, Ile-Ife, Nigeria, ActaGeophysica,61(1), 2013b, 223 – 239, Doi: 10.2478/s11600-012-0039-3
[4]. Chuahan, V., Singh, O. P. &Birbal, S., Diurnal and Seasonal variation of GPS – TEC during a low solar activity period as observed at a low latitude station Agra, Indian J. Radio Space Phys., 40, 26. 2011.
[5]. Bolaji, O. S., Adeniyi, J. O., Radicella, S. M. & Doherty, P. H., Variability of Total Electron Content over an equatorial West African station during low solar activity, Radio sci. (USA), 47, doi: 10.1029/211RS004812, 2012.

ABSTRACT: It is strongly believed that the speed of the light (c) is constant. Two more constants also never change, and they are gravitational constant (g) and Planck's constant (h). They are the basic concepts that built our Universe. When the understanding of the speed of light is so strong, here is a simple submission to the scientific world that there must be an unknown radiation which travels the infinite distances instantly, at the doubling speed of the preceding speed, at the every unit of 300,000 km per second of light. It is explained through a Thought experiment, which is one way to prove a new concept in Science.

Keywords: Everything, light, speed, space, thought experiment..

[1]. Albert Einstein (1916), Relativity – The Special and the General Theory, General Press, New Delhi.
[2]. Sharad Nalawade (2012), The Speed of Time, WORDIZEN Books, India.
[3]. Stephen Hawking (2005), A Briefer History of Time, Bantam Press, London.
[4]. Stephen Hawking (2006), The Theory of Everything, Phoenix Books, USA.
[5]. Stephen Hawking (2010), The Grand Design, Bantam Press, London.
[6]. Walter Issacson (2007), Einstein, His life and Universe, Simon & Schuster, UK Ltd., London.

ABSTRACT: Dirac-Maxwell equations are generalized by introducing electric scalar field and magnetic scalar field in order to obey second order differential equations by both scalar fields and vector fields without implementation of Lorentz condition on them. It makes the electric charges and magnetic charges timedependent generating scalar field and magnetic scalar field respectively. These scalar fields further contribute to the electric vector field and magnetic vector field. They are further responsible to produce longitudinal components of electric vector field wave and magnetic vector field wave in addition to their transverse components as usual.
Keywords: Generalized Dirac-Maxwell's equations, Lorentz Gauge, Electric scalar field, Magnetic scalar field, Poynting vector.

[1]. P.A.M. Dirac, "Quantized Singularities in the Electromagnetic Field", Proceedings of the Royal Society, A133, (1931), 60-72.
[2]. Dirac P. A. M., Phys. Rev., 74, (1948) 817.
[3]. Brau Charles A., (2004), Modern Problems in Classical Electrodynamics, Oxford University Press. ISBN 0-19-514665-4.
[4]. Shnir Yakov M., (2005), Magnetic Monopoles, Springer-Verlag. ISBN 3-540-25277-0.
[5]. Sturrock P. A. Astrophys. J., 164, (1971), 529–556.
[6]. Ruderman M. A. & Sutherland P. G., Astrophys. J., 196, (1975), 51-72.
[7]. Cabibbo N. and Ferrari E., Nuovo Cimento, 23 (1962) 1147.