A: Physics & Space Science (178)
GJSFR: A
On the Weight Reduction of Metals due to Temperature Increments
Published In: GJSFR Part: A: Physics & Space Science Volume: 12 Issue: 7
Based on E = mc2, Einstein remarked that an increase of E in the amount of energy must be accompanied by an increase of E/c2 in mass; and thus the increased temperature would lead to an increased weight. However, based on the recently discovered charge-mass interaction, it is predicted instead that a heated up matter would have a reduced weight. Experimentally, Fan, Feng, and Liu found t...
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Authors Dr. C. Y. LoRead Journal Click Here
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Page No. 1 to 13
Assessment of the Effect of Co-Digestion of Chicken Dropping and Cow Dung on Biogas Generation
Published In: GJSFR Part: A: Physics & Space Science Volume: 12 Issue: 7
Biogas production from 5 batch digesters containing varying ratios of mixture of chicken droppings and cow dung was studied for a period of 30 days at ambient temperature. Results from this study show that co-digestion of chicken droppings and cow dung increased biogas yield as compared to pure samples of either chicken droppings or cow dung. The maximum biogas yield was attained with mi...
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Authors Dr. Nnabuchi, M. N., Akubuko, F. O, Augustine, C., G. Z. UgwuRead Journal Click Here
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Page No. 31 to 36
Resolution Limits of Continuous Phase Filters beyond the Diffraction Limit
Published In: GJSFR Part: A: Physics & Space Science Volume: 12 Issue: 6
Based on the series of figures of merit, we have designed the superresolution phaseonly pupil filters to control the irradiance distribution in the focal region of an optical system. The performance of these filters has been examined in terms of two point resolution by applying modified Sparrow criterion. It is observed that the presence of these pupil functions enhancing the resolution ...
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Authors Dr. Andra Naresh Kumar Reddy, Dasari Karuna Sagar, Matta Keshavulu GoudRead Journal Click Here
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Page No. 73 to 79
Analysis of Sintered Metal Powder Preform during Extrusion through an Equilibrium Approach
Published In: GJSFR Part: A: Physics & Space Science Volume: 12 Issue: 6
The extrusion of metal powders at room temperature with subsequent sintering allows manufacturing of final products with unique microstructures and therefore with unique mechanical properties. In this study, the experimental results of extrusion of both aluminium and copper powders under laboratory conditions are presented and analysed. The main objective of the work is to demonstrate th...
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Authors Dr. Arun Ku. Sharma,Abhay Ku. Sharma, R.K. Ranjan, Maneesh ChoubeyRead Journal Click Here
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Page No. 61 to 66
Using Gauss’s Law in Determinating the Width Emitter Extension Region of the Solar Cell Operating in Open Circuit Condition
Published In: GJSFR Part: A: Physics & Space Science Volume: 12 Issue: 6
In this article, we are discussing the Gauss’s law used to determine the width emitter extension region of the solar cell operating in open circuit condition. Taking into account the grain size (g), the grain boundary recombination velocity (Sgb) and the emitter doping density (Nemitter), the Gaussian Law helped us to calculate the width emitter extension region of the s...
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Authors Dr. E. Sow, Dr Senghane Mbodji, B. Zouma, Zoungrana, I. Zerbo, A. Sere, G. SissokoRead Journal Click Here
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Page No. 67 to 72
Influence of Magnetic Field on Electrical Model and Electrical Parameters of a Solar Cell under Intense Multispectral Illumination
Published In: GJSFR Part: A: Physics & Space Science Volume: 12 Issue: 6
In this work we present a 3D modeling of the magnetic field influence on electrical model and electrical parameters (Jph, Vph, Rs, Rsh, C) of a polycrystalline silicon solar cell under intense multispectral illumination. For intense light, the electric field in the base of the solar cell has to be considered; taking into account this electric field and the applied magnetic field in our m...
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Authors Dr. F. Toure, M. Zoungrana, B. Zouma, S. Mbodji, S. Gueye, A. Diao, G. SissokoRead Journal Click Here
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Page No. 51 to 60
Life Origination Hydrate Hypothesis (LOH-Hypothesis): Original Approach to Solution of the Problem
Published In: GJSFR Part: A: Physics & Space Science Volume: 12 Issue: 6
The Life Origination Hydrate hypothesis (LOH-hypothesis) presents a mechanism of living matter origination from simple mineral substances within natural underground or underseabed methane-hydrate matrixes with no external energy. The mechanism is well-founded chemically, thermodynamically, and logically and is applicable to any celestial body where the corresponding temperature and miner...
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Authors Dr. Victor Ostrovskii, Elena KadyshevichRead Journal Click Here
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Page No. 1 to 36
Refraction As A Function Of Molecular Gravitation: Fresh Insights Into The Nature Of Space, Mass And Energy And A New Possibility In The Creation Of Metamaterials
Published In: GJSFR Part: A: Physics & Space Science Volume: 12 Issue: 5
The paper begins by stating and illustrating what it claims as a new discovery, namely, that the refractive index of a substance is a function of the gravitational field set up by its molecules. An interpretation of the discovery leads to revolutionary insights on the nature of refraction and the relationship linking space, mass and energy. A nanotechnology based on this discovery is sug...
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Authors Dr. H M MwangashaRead Journal Click Here
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Page No. 19 to 22
Design, Analysis and Performance Study of a Hybrid PV-Diesel- Wind System for a Village Gopal Nagar in Comilla
Published In: GJSFR Part: A: Physics & Space Science Volume: 12 Issue: 5
In this report, a hybrid power system has been designed considering photovoltaic, wind turbine generator and diesel generator. HOMER software has been used for analyzing the performance of the system. Different performance analysis like feasibility, sensitivity, cost, and sustainability has been done. Environmental and economic analysis is used to discuss the sustainability of a hybrid p...
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Authors Mohammad Mozammel Hoque, I.K.A Bhuiyan, Rajib Ahmed, Abdullah Al Farooque, S.K AdityaRead Journal Click Here
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Page No. 13 to 17
FTIR and Optical Absorption Studies Of New Magnesium Lead Borate Glasses
Published In: GJSFR Part: A: Physics & Space Science Volume: 12 Issue: 4
New magnesium lead borate glasses (10-x) MgO-xMgCl2-40PbO-50B2O3 (x = 0, 1, 2, 3, 4, 5, 6, 7, 8, and 10 mole%) were prepared by melt quenching technique. Fourier transform infrared spectroscopic studies revealed the presence of BO3 trigonal and BO4 tetrahedral structural units in these glasses. The optical energy band gaps, Urbach energies and theoretical refractive index values are repo...
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Authors Dr. G. Ramadevudu, S.Lakshmi Srinivasa Rao, Md. Shareeffuddin, M.Narasimha Chary, M.Lakshmipathi RaoRead Journal Click Here
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Page No. 41 to 46
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Study on Temperature Variation of Densities of Antimony and Bismuth Using Gamma Ray Attenuation Technique
Published In: GJSFR Part: A: Physics & Space Science Volume: 12 Issue: 4
The densitometer was designed and fabricated with the underlying principle of gamma ( ) ray attenuation produced on passing a collimated beam of monochromatic gamma radiation through any material. After standardization, the gamma ray attenuation coefficient (μ) was calculated to determine changes in densities as a function of temperature of Sb and Bi in solid phase. The density of...
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Authors Dr. K. Gopal Kishan Rao, K.Narendar, A.S. Madhusudhan Rao, N. Gopi Krishna, K. Ashoka ReddyRead Journal Click Here
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Page No. 35 to 39
Ab Initio Density Functional Theory Investigation of Structural and Electronic Properties of Double-Wall Zinc Oxide Nanotubes
Published In: GJSFR Part: A: Physics & Space Science Volume: 12 Issue: 6
The electronic properties of double-wall zinc oxide nanotubes (DWZnONTs) are investigated via density functional theory. The DWZnONTs are separated into two categories¸ where the inner and outer nanotubes are armchair-armchairand zigzag-zigzag single-wall nanotubes. The band structure of the DWZnONTs is calculated. Our results show that the interwall coupling diminishes the energ...
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Authors Dr. Sh. Valedbagi, A. Fatehalian, S. M. ElahiRead Journal Click Here
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Page No. 45 to 50
General Relativity – A Theory in Crisis
Published In: GJSFR Part: A: Physics & Space Science Volume: 12 Issue: 4
The black hole, gravitational waves, and the Big Bang cosmology have no valid basis in science. It is demonstrated herein that Einstein’s field equations violate the usual conservation of energy and momentum and are therefore in conflict with experiment on a deep level, so that General Relativity is invalid. This fact alone proves the invalidity of the black hole, gravit...
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Authors Dr. Stephen J. CrothersRead Journal Click Here
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Page No. 27 to 33
Proof of no “Black Hole†Binary in Nova Scorpii
Published In: GJSFR Part: A: Physics & Space Science Volume: 12 Issue: 4
This paper proves in a simple way, with minimal mathematics, that there is no black hole or close black hole binary system in Nova Scorpii, contrary to the published claims of Schmidt et al. (2002). It also consequently proves that the concept of the black hole violates the physical principles of General Relativity and is therefore invalid. ...
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Authors Dr. Stephen J. CrothersRead Journal Click Here
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Page No. 1 to 4
