IOSR-JAP   Volume-2 ~ Issue-1 ~ Sep–Oct 2012

Abstract: We have carried out some statistical tests of relativistic beaming and radio source orientation scenarios using optical class, apparent jet speed (βapp) and redshift (1+z) of a sample from Kellermann et al (2004) as orientation indicators. The final compilation consists of 96 sources. 11 FRII radio galaxies and 85 radio-loud quasars were used for the analyses. Our results show that quasars have higher apparent jet speed than galaxies with the respective mean values as 6.833 and 1.209. This result is consistent with the simple relativistic beaming and orientation-based unification hypotheses in which quasars are the beamed counterparts of powerful radio galaxies which form the isotropic parent population. In order to further test the unification scheme for these objects, correlation analysis of the observed parameters for the two optical classes was performed. The result shows strong evidence that FRII radio galaxies and quasars are intrinsically the same but appear different due to relativistic beaming and orientation effects.

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Abstract: It has always been a topic of interest whether Universe is expanding or collapsing, if anyone of them is happening then whether the phenomena is accelerating or decelerating. This paper is a fiction supported by the basic principles of physics and Nebula hypothesis.
Keywords: Nebula Theory, Supernova, Gravity.

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Abstract: We suggest a new purpose of a security scheme by employing the nonlinear behaviors of temporal dark and bright solitons amongst a micro-ring resonator system for signal security application. The chaotic signal is generated, where the required bright soliton pulse can be recovered and discovered by an add/drop filtering device. By using the reserve ring parameters, simulation results obtained have demonstrated that the soliton conversion can be performed. In application, the chaotic signal is generated and formed by the dark soliton inside a nonlinear micro-ring device. The different temporal soliton response time can be seen, the response times of 169 and 84 ns are mentioned for temporal dark and bright solitons, respectively, which can also be used to figure the security key. The technique of optical conversion can be use to improve the optical communication network systems.
Keywords: microring resonator, nonlinear medium, chaotic signals, add/drop filter, dark-bright conversion

[1] A. Afroozeh, I.S. Amiri, M. Kouhnavard, M. Jalil, J. Ali, and P. Yupapin. Optical dark and bright soliton generation and
amplification. Enabling Science and Nanotechnology (ESciNano) Conference 2010. Malaysia: IEEE Explore.
[2] I.S. Amiri, A. Afroozeh, I. Nawi, M. Jalil, A. Mohamad, J. Ali, and P. Yupapin, Dark Soliton Array for Communication Security,
Procedia Engineering, 8, 2011, 417-422.
[3] M. Bahadoran, I.S. Amiri, A. Afroozeh, J. Ali, and P.P. Yupapin, Analytical Vernier Effect for Silicon Panda Ring Resonator, in
National Science Postgraduate Conference, NSPC 2011: Universiti Teknologi Malaysia.
[4] I.S. Amiri, K. Raman, A. Afroozeh, M. Jalil, I. Nawi, J. Ali, and P. Yupapin, Generation of DSA for Security Application,
Procedia Engineering, 8, 2011, 360-365.
[5] N. Suwanpayak, S. Songmuang, M. Jalil, I.S. Amiri, I. Naim, J. Ali, and P. Yupapin. Tunable and storage potential wells using
microring resonator system for bio-cell trapping and delivery. Enabling Science and Nanotechnology (ESciNano) Conference.
2010: IEEE Explore.
[6] P. Yupapin, M. Jalil, I.S. Amiri, I. Naim, and J. Ali, New Communication Bands Generated by Using a Soliton Pulse within a
Resonator System, Circuits and Systems, 1, 2010.
[7] A. Afroozeh, M. Bahadoran, I.S. Amiri, A.R. Samavati, J. Ali, and P.P. Yupapin, Fast Light Generation Using GaAlAs/GaAs
Waveguide, Jurnal Teknologi, 57, 2012, 7.
[8] A. Afroozeh, I.S. Amiri, M.A. Jalil, M. Kouhnavard, J. Ali, and P.P. Yupapin, Multi Soliton Generation for Enhance Optical
Communication, Applied Mechanics and Materials, 83, 2011, 136-140.
[9] I. Amiri, A. Afroozeh, and M. Bahadoran, Simulation and Analysis of Multisoliton Generation Using a PANDA Ring Resonator
System, Chinese Physics Letters, 28(10), 2011, 104205.
[10] I.S. Amiri, J. Ali, and P. Yupapin, Enhancement of FSR and Finesse Using Add/Drop Filter and PANDA Ring Resonator Systems,
International Journal of Modern Physics B, 26(04), 2012.