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Analysis of Sunspot Time Series During the Ascending Phase of Solar Cycle 24 Using the Wavelet Transform
Satish Kumar Kasde,
Deepak Kumar Sondhiya,
Ashok Kumar Gwal
Issue:
Volume 5, Issue 5, September 2016
Pages:
79-86
Received:
6 July 2016
Accepted:
18 July 2016
Published:
17 August 2016
Abstract: The sunspots are widely used to measure the rotational rate of solar surface. We are interested in analysis of the temporal evaluation of the short-term period present in sunspot time series (i.e. sunspot number and area) during the ascending phase of Solar Cycle 24. For the better understanding of variation in solar activity originated at different layers of the solar atmosphere with respect to sunspot cycles, we study the phase relation between sunspot numbers and sunspot areas using cross correlation analysis techniques based on extended wavelet based approaches such as continuous wavelet transform, cross-wavelet transform, and wavelet coherence. In this study we found the short-term periodicity “27 days-rotational rate of Sun” for current solar cycle 24 (January2008-May2013), which suggested that the Solar Cycle24 has minimum solar activity. We have also investigated the correlation between both parameters and identify the unusual conditions in space weather.
Abstract: The sunspots are widely used to measure the rotational rate of solar surface. We are interested in analysis of the temporal evaluation of the short-term period present in sunspot time series (i.e. sunspot number and area) during the ascending phase of Solar Cycle 24. For the better understanding of variation in solar activity originated at differen...
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Statistical Research of Nuclide’s Shell Structure
Issue:
Volume 5, Issue 5, September 2016
Pages:
87-134
Received:
28 August 2015
Accepted:
19 July 2016
Published:
6 September 2016
Abstract: This thesis, after a systematic and in-depth analysis of known nuclides, pro-poses a new model of nuclides’ shell structure and offers a table of the shell structures of 935 nuclides. With this theoretic approach, the thesis studies the shell combination with a bias towards the statistical analysis of nuclide structures. This thesis distinguishes between the basic models of nuclides and gives 7criteria for nuclide binding, the maximal nucleonic number of each shell (Δ
), combination of proton and neutron (p/n) and graphs of the nuclide growth. Based on magnetic moment, it also conducts a quantitative analysis of p/n on the shell. The nuclide structure has the characteristic of a shell and on every shell the combination of proton and neutron features clear regularity. Among the 106 elements from 
H to 
Sg the serial number of the most outside shell in structure is 7, and nuclides 
Ha and Sg are respectively even A and odd A 7 shells. It is not a coincidence but a reflection of the nuclide shell structure. The thesis uses the result of a statistical analysis to confirm the existence of "the magic Number" and reveals the fact that the magic number" is a reflection of p/n on nuclide shell, particularly on the outer shells. The statistical analysis reveals that the nuclide stability and its way of decay are dependent on the nucleonic combination on the most outside shell and the matching between full-filled and semi-full filled p/n, thus unveiling the general law governing the stability and decay of nuclides.
Abstract: This thesis, after a systematic and in-depth analysis of known nuclides, pro-poses a new model of nuclides’ shell structure and offers a table of the shell structures of 935 nuclides. With this theoretic approach, the thesis studies the shell combination with a bias towards the statistical analysis of nuclide structures. This thesis distinguishes b...
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Substantiation of Data Files of JEFF-3.1.2 for Safety Analysis of TRIGA Mark-II Reactor through the Scrutiny of Integral Parameter of Benchmark Lattices TRX and BAPL
Md. Mominul Islam,
Md. Mahbubul Haque,
S. M. Azharul Islam
Issue:
Volume 5, Issue 5, September 2016
Pages:
135-141
Received:
4 August 2016
Accepted:
22 August 2016
Published:
10 September 2016
Abstract: The aim of this analysis is to bear out the nuclear data files of JEFF-3.1.2 for theoretical safety analysis of a 3 MW TRIGA MARK-II research reactor is custom-made at AERE, Dhaka, Bangladesh through the study of integral parameters of benchmark lattice TRX and BAPL of thermal reactor. The basic evaluated nuclear data files of JEFF-3.1.2 are selected for TRIGA reactor and processed by using nuclear data processing code NJOY99.0. Different cross-sections of U-235 and U-238 are computed from the NJOY output of the evaluated nuclear data library. The 69 group cross-section library is engendered from the processed file for reactor code WIMSD-5B. From the generated 69 group cross-section library, the integral parameters of yardstick lattices TRX and BAPL are premeditated by using cell code WIMSD-5B. The calculated integral parameters are compared to the deliberated values as well as the consequences of Monte Carlo Code MCNP. From the assessment it is found that all the integral parameters are in good concurrence with some suspicions. Through benchmarking the integral parameters of TRX and BAPL lattices this analysis reflects the support to the evaluated nuclear data files of JEFF-3.1.2 for safety analysis of TRIGA Mark-II research reactor at AERE, Dhaka, Bangladesh.
Abstract: The aim of this analysis is to bear out the nuclear data files of JEFF-3.1.2 for theoretical safety analysis of a 3 MW TRIGA MARK-II research reactor is custom-made at AERE, Dhaka, Bangladesh through the study of integral parameters of benchmark lattice TRX and BAPL of thermal reactor. The basic evaluated nuclear data files of JEFF-3.1.2 are select...
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A Theory on the Birth, Structure and Ultimate Fate of the Universe
Hitoshi Shibata,
Norio Ogata
Issue:
Volume 5, Issue 5, September 2016
Pages:
142-145
Received:
7 August 2016
Accepted:
26 August 2016
Published:
13 September 2016
Abstract: One major theory stipulates that our Universe was born through a process of fluctuation in a quantum world, the Big Bang and inflation, and is still expanding. However, questions concerning dark energy, dark matter and other major issue remain unanswered. If it is assumed that the quantum world remains outside of the Universe in the same state as before the birth of the Universe, and that the Universe is a space-time bubble created therein with a boundary that is an event horizon similar to a black hole, then it can be proven that the Universe is not expanding but contracting from its boundary, while satisfactorily explaining the observed results of the Universe’s expansion and isotropy. The authors propose this as a new theory.
Abstract: One major theory stipulates that our Universe was born through a process of fluctuation in a quantum world, the Big Bang and inflation, and is still expanding. However, questions concerning dark energy, dark matter and other major issue remain unanswered. If it is assumed that the quantum world remains outside of the Universe in the same state as b...
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Calculations of 2sns+1,3Se, 2snp+1,3P0, 2pnp+1,3De Autoionizing States in Two-Electrons Systems Using a New Wave Function to Four Terms
Boubacar Sow,
Youssou Gning,
Malick Sow,
Alassane Traore,
Ahmadou Wagué
Issue:
Volume 5, Issue 5, September 2016
Pages:
146-153
Received:
1 August 2016
Accepted:
15 August 2016
Published:
23 September 2016
Abstract: In this paper, we calculate energies for 2s3s+1,3Se, 2s4s+1,3Se, 2snp+1,3P0 with n≤6 and 2p3p+1,3De, 2p4p+1,3De autoionizing states of helium-like ions. These calculations are investigated using a new wave function correlated to four terms. Total energies calculations are performed between two electrons in He-isoelectronic series up to Z = 10, base on the Screening Constant by Unit Nuclear charge method in the framework of a variational procedure. The results obtained are in compliance with recent theoretical calculations.
Abstract: In this paper, we calculate energies for 2s3s+1,3Se, 2s4s+1,3Se, 2snp+1,3P0 with n≤6 and 2p3p+1,3De, 2p4p+1,3De autoionizing states of helium-like ions. These calculations are investigated using a new wave function correlated to four terms. Total energies calculations are performed between two electrons in He-isoelectronic series up to Z = 10, base...
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Phase Matched Third Harmonic Generation of a Gaussian Laser Pulse in High-Density Quantum Plasma
Nisha Singh Rathore,
Punit Kumar
Issue:
Volume 5, Issue 5, September 2016
Pages:
154-161
Received:
22 July 2016
Accepted:
10 August 2016
Published:
6 October 2016
Abstract: Third harmonic generation due to linearly polarized Gaussian laser pulse propagating through quantum plasma immersed in transverse wiggler magnetic field is studied using the quantum hydrodynamic (QHD)model. The effects associated with the Fermi pressure, the Bohm potential and the electron spin have been taken into account.Wiggler magnetic field plays both a dynamic role in producing the harmonic current and a kinematical role in ensuring phase-matching. It is shown that the harmonic radiation attain the maximum valueat an instant when the phase matching is satisfied and thereafter decreases at later duration of laser pulse. The quantum effects also add to harmonic generation in the phase-matched case.
Abstract: Third harmonic generation due to linearly polarized Gaussian laser pulse propagating through quantum plasma immersed in transverse wiggler magnetic field is studied using the quantum hydrodynamic (QHD)model. The effects associated with the Fermi pressure, the Bohm potential and the electron spin have been taken into account.Wiggler magnetic field p...
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