Journal of Ultra Scientist of Physical Sciences - A
Voulume: 30
Issue: 1
Article No. 1
Generalized Convolution of Certain Class of Harmonic Univalent Functions
Assoc. Professor, Department of Mathematics R P Degree College, Kamalganj, Farrukhabad-209601 (U.P.) (India)
2Lecturer Mathematics Sri Radhey Lal Arya Inter College, Aihan, Hathras (U.P.) (India)
Abstract :

The purpose of the present paper is to establish some results generalized convolution for a subclass of harmonic univalent functions

Keyword : Harmonic, Univalent, Convolution, AMS 2010 Mathematics Subject Classifications: 30C45
Paper Download Count : 687
View Count : 1071
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Article No. 2
Optimal Ordering and Replenishment Policies for Deteriorating Items Having a Fixed Expiry Date with Price and Credit Period Sensitive Demand under Trade Credit
Department of Mathematics, Shaheed Heera Singh Govt. Degree College, Dhanapur (Chandauli), (India)
Department of Mathematics, Govt. P.G. College, Fatehabad (Agra), (India)
Abstract :

In this paper, an inventory model for deteriorating items with selling price and credit period sensitive demand is developed. The inventory system deals with products which have a fixed expiry date after which the product cannot be sold. Here, a permissible delay period is allowed by the supplier to the retailer to pay all his dues, but if the retailer doesn’t pay the entire amount at the end of the delay period, an interest will be charged on the remaining dues. The shortages are also allowed and partially backlogged. This paper provides a procedure to develop the total retailer’s profit function per unit time of the system and optimal ordering quantity per cycle for the retailer. Finally, the model is illustrated with numerical examples.

Keyword : Inventory, deterioration, price and credit period sensitive demand, permissible delay period, and expiry date
Paper Download Count : 635
View Count : 1123
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Article No. 3
Effects of heat and mass flux on MHD free convection flow through a porous medium in presence of radiation and chemical reaction
1Department of Mathematics, JECRC University, Jaipur-303905, Rajasthan (India)
Abstract :

The present study deals with thermal radiation effect on two dimensional magnetohydrodynamics (MHD) natural convection boundary layer flow of viscous fluid surrounded by porous vertical surface with heat source, chemical reaction and radiation effect. The governing partial differential equations have been converted into a set of ordinary differential equations using non dimensional quantities. Perturbation technique has been employed to solve the system of partial differential equations. Most of the studies so far have presented the numerical and semi analytical solution for flow velocity and temperature in the form of a series solution. The effects of various parameters on flow variables are illustrated graphically, and the physical aspects of the problem are discussed. It has been observed that the velocity increase with increasement in permeability and radiation parameters and reverse trend has been found with respect to magnetic parameter.

Keyword : Chemical reaction, porous medium, viscous dissipation, boundary layer, MHD, MSC Code: 80A20, 76DXX, 76W05, 76S05
Paper Download Count : 741
View Count : 1006
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Article No. 4
Bayesian Prediction limits for Rayleigh Model when observations are Multiply type II Censored
Govt. P.G. Arts & Science College, Ratlam (India)
Govt. P.G. Arts & Science College, Ratlam (India)
Abstract :

In this article, multiply type II censored observation from Rayleigh model is considered. Using conjugate prior for parameter, predictive pdf, hence and predictive limits are obtained. We also obtained prediction limits for double, mid censoring as well. A Monte Carlo study of 1000 randomly generated sample is performed and prediction limits for different censoring scheme is compared.

Keyword : Rayleigh Model, prior, conjugate prior, posterior, Bayes prediction, Mathematics Subject Classification : 62F15, 62N01, 00A72
Paper Download Count : 601
View Count : 1046
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Article No. 5
Note on Super Radial Signed Graphs
Department of Studies in Mathematics Vijayanagara Sri Krishnadevaraya University Ballari-583 105 (India)
Department of Mathematics Siddaganga Institute of Technology B.H. Road, Tumkur-572 103 (India)
Department of Mathematics Government Science College Hassan-573 201, India
Abstract :

In this paper we introduced a new notion super radial signed graph of a signed graph and its properties are obtained. Also, we obtained the structural characterization of radial signed graphs. Further, we presented some switching equivalent characterizations.

Keyword : Signed graphs, Balance, Switching, Super radial signed graph, 2000 Mathematics Subject Classification: 05C22, 05C12
Paper Download Count : 583
View Count : 1017
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Article No. 6
Design and Simulation of Reconfigurable Logic Circuits using CNTFETs
Department of Electronics, D.D.U. Gorakhpur University, Gorakhpur (India)
Department of Computer Science, DDU Gorakhpur University, Gorakhpur (India)
Department of Electronics, D.D.U. Gorakhpur University, Gorakhpur (India)
Abstract :

In the proposed paper the basic logical cells like inverter, NOR and NAND are realized using n-type and p-type CNTFET. These blocks are used to implement seven function reconfigurable logic blocks. The VHDL code, simulation and synthesized results are generated on Xilinx 9.2 platform. The designed circuit is FPGA programmed on Altera kit.

Keyword : CNTFET, Reconfigurable logic, Xilinx, FPGA, MOSFET
Paper Download Count : 792
View Count : 1209
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Article No. 7
Unsteady MHD Mixed Convection Flow of Jeffrey Fluid Past a Radiating Inclined Permeable Moving Plate in the Presence of Thermophoresis Heat Generation and Chemical Reaction
Dept. of GEBH (Mathematics), Sree Vidyanikethan Engineering College (Autonomous), A. Rangampet, Tirupati-517102, (A.P). (India)
Dept. of GEBH (Mathematics), Sree Vidyanikethan Engineering College (Autonomous), A. Rangampet, Tirupati-517102, (A.P). (India)
Dept. of H.&S., Annamacharya Institute of Science and Technology (Autonomous), Rajampet-516126, Y.S.R. Kadapa (dt) (India)
Dept. of GEBH (Mathematics), Sree Vidyanikethan Engineering College (Autonomous), A. Rangampet, Tirupati-517102, (A.P). (India)
Abstract :

In this manuscript a study of the unsteady magneto-hydrodynamic mixed convection Jeffrey fluid flow over an inclined permeable moving plate in presence of thermal radiation, heat generation, thermophoresis effect and homogenous chemical reaction, subjected to variable suction has been undertaken. The governing equations are solved by using a regular perturbation technique. The expressions for the distributions of velocity, temperature and species concentration are obtained. With the aid of these, the expressions for skin friction, Nusselt number and Sherwood number also have been derived. The influences of various physical parameters involved in the problem on the above mentioned quantities are discussed with the help of graphs and tables. From the significant findings, it has been found that the velocity increases with an increase in Soret number in the presence of permeability. It shows reverse effects in the case of heat absorption coefficient, magnetic parameter, radiation parameter and chemical reaction parameter.

Keyword : Non-Newonian fluid, MHD, Radiation, Incompressible flow, Porous media, Subject Classification codes: 76A05, 76Wxx, 83C30, 76Dxx, 76Sxx, 76E06.
Paper Download Count : 770
View Count : 1021
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Article No. 8
On Srw continuous and Srw-Irresolute Maps in Topological Spaces
Department of Mathematics, Siddaganga Institute of Technology, Tumakuru-03, Affiliated to VTU, Belagavi, Karnataka state (India)
Department of Mathematics, Gopalan College of Engineering and Management, Bangalore-48, Affiliated to VTU, Belagavi, Karnataka state (India)
Abstract :

In this paper, a new class of continuous maps called sαrw-continuous maps in topological spaces are introduced and studied. Also some of their properties have been investigated. We also introduce sαrw-irresolute maps, strongly sαrw-continuous maps, perfectly sαrw-continuous maps and discuss some properties.

Keyword : su03b1rw-closed sets, su03b1rw-open sets, su03b1rw-continuous maps, su03b1rw-continuous maps, 2010 Mathematics Classification: 54A05, 54A10
Paper Download Count : 535
View Count : 1020
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Article No. 9
Determination of Radon Exhalation Rates and Emanation Factor of Some Soil Samples Collected From Southern Seashore of Kerala, India
Department of Physics, Research and Development Centre, Bharathiar University, Coimbatore - 641 046 (India
Department of Physics, Research and Development Centre, Bharathiar University, Coimbatore - 641 046 (India
Centre for Advanced Research in Physical Sciences, Fatima Mata National College, Kollam-691001, (India)
Abstract :

Weathering and erosion of rocks are the main cause for the formation of mineral deposits in beach sand and soil.There are quite a few identified monazite sand-bearing placer deposits causing environmental high radiation area along its long coastline of Kerala and Tamil Nadu in India. The extent and effects of the radioactivity in the regions like Chavara and Neendakara in Kollam, Kerala is well known. Following a pilot study along the southern west coast of Kerala state, India we found certain regions with higher levels of natural radioactivity. Later made a detailed investigation of activity concentration of 226Ra, radon exhalation rates and radon emanating factor of those locations namely Kovalam and Varkala. The results indicates that most of the soil sample shows higher specific activity of 226Ra and there is a linear relation to 222Rn mass exhalation rate. But radon emanation factor is not so linear to the specific activity of Radium in sample analysed.

Keyword : Natural radioactivity, specific activity, mass exhalation rates, emanation factor
Paper Download Count : 752
View Count : 1043
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Article No. 10
Dimensional -Kenmotsu Manifolds with Respect to Schouten-van Kampen Connection
Department of Mathematics, Sidho Kanho Birsha University, Puruliau2013723104, West Bengal (India)
Department of Mathematics, Indira Gandhi National Tribal University, Lalpur, Amarkantak, Anuppur, Madhya Pradesh u2013 484 887 (India)
Department of Mathematics, The University of Burdwan, Burdwan u2013 713104, West Bengal (India)
Abstract :

The object of the present paper is to study 3-dimensional β- Kenmotsu manifolds whose metric is Ricci soliton with respect to Schouten- van Kampen connection. We found the condition for the Ricci soliton structure to be invariant under Schouten-van Kampen connection. We have also showed that the Ricci soliton structure with respect to usual Levi-Civita connection transforms to a η-Ricci soliton structure under D-homothetic deformation. Finally we have shown that if a 3-dimensional β-Kenmotsu manifold admits a Ricci soliton structure with respect to Schouten-van Kampen connection and potential vector field as the Reeb vector field, then the manifold becomes K -contact Einstein.

Keyword : Ricci soliton, u03b2-Kenmotsu manifold, Schouten-van Kampen con- nection, D-homothetic deformation., 2010 Mathematics Subject Classification. 53C15, 53C25
Paper Download Count : 556
View Count : 1000
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