Papers

Journal of Ultra Scientist of Physical Sciences - B
Voulume: 21
Issue: 2
Article No. 1
Potentials of Fonio (Digitaria iburua) for production of breakfast meal
Victoria Funmilayo Abioye
Department of Food and Engineering, Ladoke Akintola University of Technology, P.M.B., 4000, Ogbomoso (NIGERIA)
Grace Oluwakemi Babarinde
Department of Food and Engineering, Ladoke Akintola University of Technology, P.M.B., 4000, Ogbomoso (NIGERIA)
Abstract :

This study was carried out to develop a product from fonio, Digitaria iburua, and to evaluate the physical, chemical and sensory attributes of the developed product. Fonio grain was cleaned, steam cooked and drum dried to give a flaking roll. The thickness and the colour of the developed fonio meal was comparable to that of the commercial oat. Proximate composition of the meal indicated a moisture content of 9.02%; protein, 8.44%; fat, 1.49%; ash, 0.56%; carbohydrate, 80.66% and crude fibre, 0.71%. It was also high in calcium (8.14mg/100g), phosphorus (28.40mg/100g) and iron (10.74mg/100g). The amino acid profile was attractive having six of the essential amino acids: lysine (32.26mg/100g), threonine (11.95mg/100g), methionine (6.7mg/100g), leucine (38.89mg/100g), iso-leucine (17.21mg/100g) and tryptophan (4.53mg/100g). In sensory evaluation, the panellists rated the product better than commercial oat meal, but statistical analysis indicated that the difference between the meal and a commercial oat product was not significant (P>0.05).

 

Keyword : Fonio (Digitaria iburua), acha, breakfast meal, traditional food.
DOI : jusps-B
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Article No. 2
Acoustical Studies on Solutions of Surfactant - Polymer in Ethanol
D. Geetha (gee_d72@yahoo.co.in.)
Department of Physics, Physics wing DDE, Annamalai University, Annamalai Nagar- 608 002, Tamil Nadu -(INDIA)
T. Thilagavathi
Department of Physics, Physics wing DDE, Annamalai University, Annamalai Nagar- 608 002, Tamil Nadu -(INDIA)
P.S. Ramesh
Physics wing DDE, Annamalai University, Annamalai Nagar- 608 002, Tamil Nadu -(INDIA)
C. Rakkappan
Physics wing DDE, Annamalai University, Annamalai Nagar- 608 002, Tamil Nadu -(INDIA)
Abstract :

Ultrasonic velocity measurements have been made in an anionic surfactant sodium laureyl sulphate (SLS) with Dextrin (Dx), Hydroxy ethyl cellulose (HEC) and Hydroxy Propyl cellulose (HPC) in ethanol solution as a function of concentration, at a fixed frequency (2MHz). SLS with different polymers are prepared and dissolved in different concentration ratio (1:9 to 9:1). Limiting parameters have been used to explain the salvation of surfactant-polymer molecules.

Keyword : Dextrin, Sodium lauryl sulphate, Hydroxy ethyl cellulose, Hydroxy propyl cellulose.
DOI : jusps-B
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Article No. 3
Anisotropy in supercurrent density in layered cuprate superconductors
Mahipal Singh (dmpsc@rediffmail.com)
Department of Physics, Govt., P.G., College, Bageshwar - 263642, Uttrakhand (INDIA)
Abstract :

Due to layered structure, the electronic conduction in high-Tc cuprate superconductors is highly anisotropic. Therefore, in the present work, we have made an attempt to study the anisotropy in supercurrent density in layered cuprate superconductors likeYBa2Cu3O6+x. We have considered tight binding bilayered Hubbard Hamiltonian. The situation considered here for the bilayered cuprates is similar to a SIS junction. Using Green function technique, we have got the expressions for superconducting order parameters, carrier density and supercurrent densities.The numerical analysis shows that the anisotropy in supercurrent density depends on the temperature and various other microscopic parameters of the model Hamiltonian. The anisotropy in supercurrent density increases with temperature and diverges as system reaches towards the superconducting transition temperature. On increasing the carrier density within the plane, the anisotropy in supercurrent density decreases because around optimal doping region, bilayer system(YBaCuO) behaves like almost isotropic three dimensional superconductors. On increasing the interlayer attractive interaction, the anisotropy in supercurrent density decreases. It is also shown that when interlayer attractive interaction (W) is just equal to the intralayer pairing interaction (U), the anisotropy in supercurrent density vanishes i.e. the bilayer Quasi-2D system becomes almost isotropic(three dimensional) in supercurrent flow in the superconducting state. We have shown, using tight binding bilayer Hubbard model within BCS meanfield formalism, that the anisotropy in supercurrent density depend on various microscopic intra and interlayer interactions as well as on the thermodynamics of superconducting order parameter in an essential way. Finally we have compared our theoretical results of anisotropy in supercurrent density with the existing experimental findings in bilayered cuprate superconductors.

PACS: 74.50.+r, 74.72.Bk, 74.81.Fa.

 

Keyword : High-Tc cuprates, Josephson effects, Anisotropy in supercurrent density
DOI : jusps-B
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Article No. 4
Darlington pair amplifiers in cascade
Satyendra Nath Tiwari
Department of Physics and Electronics, Dr. R.M. L. Avadh University, Faizabad - 224001 (UP) INDIA
Arvind Kumar Dwivedi
Department of Physics and Electronics, Dr. R.M. L. Avadh University, Faizabad - 224001 (UP) INDIA
SachchidaNand Shukla (sachida_shukla@yahoo.com,)
Department of Physics and Electronics, Dr. R.M. L. Avadh University, Faizabad - 224001 (UP) INDIA
Abstract :

Qualitative analysis of two-stage Darlington pair amplifier is carried out. Enhancement in voltage and current gain is observed with distinct behaviour of bandwidth. This two-stage amplifier may be quite useful for amplification of small signals of mili-volts range and suitable for various analog electronics and communication applications.

 

Keyword : Small Signal amplifiers, Darlington amplifiers, Electronic Circuit Simulation
DOI : jusps-B
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Article No. 5
Fault-related geohazards in Iran
Ghodrat Torabi (Torabighodrat@yahoo.com)
Department of Geology, University of Isfahan Isfahan (IRAN)
Abstract :

Geologically, Iran is the land of faults. Except in northern part, the Iran is an arid region and for the centuries the Iranians selected the place of springs for living and village or city establishing. But most of these places are fault-related and faults supply the groundwaters. There are different geohazards in Iran that are in relation with faults: 1- Earthquake, 2- Ophiolites and asbestos minerals, 3- Radioactive, toxic, and heavy metal elements mineralization, 4- Radon and CO2 releasing.

 

 

Keyword : Geohazard, Fault, Water, Earthquake, radioactive, toxic, Iran
DOI : jusps-B
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Article No. 6
Optical Binding Between Dielectric Particles Through Millimeter Wave Propagation
K.B. Singh
Govt., Polytechnic. Darbhnga (INDIA)
Mukesh Kumar
B.R.A., Bihar University, Muzaffarpur (INDIA)
Abstract :

We show that the optical binding between dielectric particles through millimeter wave propagation at 30-50 GHz having bulk mixture of two dielectric bodies at different sizes. We suppose the dielectric particles having dimensionless than the wavelength of the interacting light under millimeter wave propagation. An optimum increase in binding energy was noted for all cases. This study further indicates the suitability of this technique for construction of two or three-dimensional arrangement of objects. The observed dependence of the separation of optically bond particles on millimeter wave propagation is in good agreement with earliest theoretical predictions.

 

 

 

Keyword : Optical Binding, Dielectric Particles, Through Millimeter Wave Propagation
DOI : jusps-B
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Article No. 7
Kinetics of oxidation of mixture of glycine + anthranilic acid by chromic acid in presence of sulphuric acid
RAJEEV KUMAR SAHU
Department of Chemistry, S.S.L. Jain P.G. College, Vidisha - 464001 (INDIA)
B .K. MISHRA
Department of Chemistry, Crescent College of Technlogy, Bhopal - 462 038 (INDIA)
N.K. THAPALIYAL
Department of Chemistry, S.S.L. Jain P.G. College, Vidisha - 464001 (INDIA)
D.P. SINGH
Department of Chemistry, Govt. Geetanjali Girls P.G. College, Bhopal - 462038 (INDIA)
Abstract :

Kinetics of oxidation of mixture of glycine + anthranilic acid by chromic acid in presence of sulphuric acid have been studied. The probable products are benzoic acid, formaldehyde, ammonia and carbon dioxide. The rate of oxidation increase with increase in the concentration of sulphuric acid. Ostwald isolation method is used for study the rate of the reaction. The rate of reaction with respect to hydrogen ion is one. Kinetics of oxidation of mixture of glycine + anthranilic acid by chromic acid shows first order reaction. The kinetic parameters such as energy of activation, catalytic constant, temperature coefficient are calculated.

Keyword : mixture of glycine, anthranilic acid, sulphuric acid
DOI : jusps-B
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Article No. 8
Study of giant oscillations of thermoelectric power of the normal metal in the presence of magnetic field using electronic topological transition (ETT)
S.B. Mahto
H.O.D., Department of Physics, S.K.M. University, Dhumka (Santhal Praggana) Jharkhand (INDIA) Department f Physics, K.B. College, Bermo (Bokaro) 824113 Jharkhand (INDIA)
J.P. Mahto
H.O.D., Department of Physics, S.K.M. University, Dhumka (Santhal Praggana) Jharkhand (INDIA) Department f Physics, K.B. College, Bermo (Bokaro) 824113 Jharkhand (INDIA)
S.R. Pandit
Department f Physics, Govt. Polytechnic, Bhagalpur, P.O. + P.S., - Barari, Bhagalpur - 812 002 BIHAR (INDIA)
Abstract :

Using the theoretical model developed by Ya. M. Blanter et. al. (Nuovo Cemento 12, 1900 (1900). We have studied the giant oscillations of thermoelectric power of the normal metal in the presence of magnetic field. This is achieved because of electronic topological transition (EET). Our theoretically evaluated result indicates the anharmonical behaviour of the thermoelectric power in the region .

Keyword : giant oscillations, thermoelectric power, normal metal,, field using electronic topological transition
DOI : jusps-B
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Article No. 9
Chemical reaction Effects on Transient MHD Free Convection and Mass Transfer Flow of Dissipative Fluid with Heat Generation and Thermal Diffusion past an infinite vertical plate
V. RAJESH (v.rajesh.30@gmail.com)
Sr. Asst. Professor, Dept,of Mathematics, Narayana Engineering College, Nellore - 524004 (A.P.) INDIA
CH. SRIDEVI
Astt., Professor, Dept of Mathematics, Bramaiah College, of Engineering, Nellore (Dt.), A.P. (INDIA)
S. VIJAYA KUMAR VARMA
Professor, Dept. of Mathematics, S.V. University, Tirupati - 517502 (A.P.) INDIA
Abstract :

The effects of chemical reaction on transient MHD free convection and mass transfer flow of dissipative fluid past an infinite vertical porous isothermal plate in the presence of heat generation, thermal diffusion and viscous dissipation is studied numerically. The Problem is governed by a coupled nonlinear system of partial differential equations. This system is solved numerically by applying explicit finite difference method. The effect of chemical reaction parameter (K) in the presence of Heat generation parameter (H) and Soret number (S0) is examined on Velocity, Temperature and Concentration. The numerical values of the skin friction, the rate of heat transfer and the rate of mass transfer are entered in tables. It is found that chemical reaction parameter K decreases velocity and concentration in the presence or no presence of Heat source parameter H and Soret number S0. Further, it has no effect on temperature.

Keyword : Transient MHD free convection flow, Dissipative fluid, infinite vertical porous isothermal plate, Chemical reaction, Explicit finite difference method.
DOI : jusps-B
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Article No. 10
Study of Electron relaxation time in the vicinity of Electronic Topological Transition (ETT) in the presence of magnetic field
S.B. Mahto
H.O.D., Department of Physics, S.K.M. University, Dumka (Santhal Pragana), Jharkahdna (INDIA), Department of Physics, K.B., College, Bermo (Bokaro) - 824 113 (Jharkhand) (INDIA)
J.P. Mahto
Department of Physics. Govt. Polytechnic, Bhagalpur P.O.+P.S. (Barari)
S.R. Pandit
Department of Physics. Govt. Polytechnic, Bhagalpur P.O.+P.S. (Barari)
Abstract :

Kinetic phenomena in the vicinity of electronic topological transition predicted by Lifshitz have been widely studied both theoretically and experimentally. Using one electron Green's function in the framework of temperature diagrammatic technique developed by Ya. M. Blantr et. al. Nuovo Cimento vol. 12, 1900 (1990), we have studied the relaxation time for EET transition. Our result shows that there is an influence of magnetic field of EET relaxation time .

Keyword : Electron relaxation, Electronic Topological Transition, presence of magnetic field
DOI : jusps-B
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