International Journal of Engineering & Mathematical Sciences
  (Print) 2319 - 4537
(Online) 2319 - 4545
  List of Volumes
Volume 1(2012)
 Issue: 1(January - June), 2012
Volume 2(2012)
 Issue: 1 (July - Dec), 2012
Volume 3(2013)
 Issue : 1(January - June), 2013
Volume 4(2013)
 Issue : 1 (July - Dec.) 2013
Volume 5(2014)
 Issue : 1 (January - June), 2014
Volume 6 (2014)
 Issue : 1 (July - Dec.) 2014
Volume 7 (2015)
 Issue : 1 (January - June), 2015
Volume 8 (2015)
 Issue : 1 (July - Dec.) 2015
Volume 9 (2016)
 Issue : 1 (January - June), 2016
Volume 10 (2016)
 Issue : 1 (July - Dec.) 2016
Volume 11 (2017)
 Issue : 1 (January - June), 2017
Volume 12 (2017)
 Issue : 1 (July - Dec.) 2017
Volume 13 (2018)
 Issue : 1 (January - June), 2018
Volume 14 (2018)
  Issue : 1 (July - Dec.) 2018
Volume 15 (2019)
 Issue : 1 (January - June), 2019
   International Journal of Engineering & Mathematical Sciences
IJEMS,Volume 4(2013), Issue : 1 (July - Dec.) 2013    Collapse all | Expand all
1. Some Inequalities on Class of Matrices and Statistical Harmonic Summability
Author : T.A. Chishti
Keyword : Density, statistical convergence, statistical summability.

Volume: 4,Issue: 1,PP: 1 - 7,Year:(2013)
In this paper we define the matrices, and which are natural analogues of matrices, and respectively and we establish some inequalities related to the concept of statistical (H, 1)-summability.
2. Study on Energy Saving in Residential Building Using Life Cycle Cost Analysis
Author : Subhash Mishra, J A Usmani and Shri Bhagman
Keyword : Degree-Days, Energy Saving, Life Cycle Cost Analysis, Optimum Insulation Thickness

Volume:4,Issue:1,PP: 8 - 17,Year:(2013)
In this paper, we discussed about the energy saving in different type of building walls by selecting a proper insulation material and optimum insulation thickness. The building sector consumes more energy as compared to other sector like industrial sector, transportation or agriculture. At optimum insulation thickness, the energy saving is maximum. So it is essential to save the energy by using optimum insulation thickness and proper building material. An energy saving of 53.51% is obtained by using light weight concrete wall as compared to stone. In this paper, the optimum insulation thickness and payback period for the different types of wall (Brick, Light Weight Concrete and Stone) was calculated. Loss of heat is calculated by using Degree-Days method. Glass Wool (GW) is selected as an insulation material. Optimization is based on life cycle cost analysis. Generalized charts for selecting the optimum insulation as a function of Degree-Days and wall thermal resistance are prepared.
3. Effect of Mass Transfer on Unsteady Free Convention Flow of Visco-elastic Fluid through Porous Medium on a Stretched Vertical Plate with Constant Heat Flux
Author : K. K. Kaanodiya and Radhey Shyam
Keyword : Free convection, Unsteady, Visco-elastic parameter, Non-Darcian Porous medium

Volume: 4,Issue:1,PP: 18 - 24,Year:(2013)
In this paper, we study on unsteady free convection flow of an incompressible viscoelastic fluid on a continuously moving vertical plate embedded in a non-Darcian porous medium is reported. Forchheimer extension is considered in the flow equations. The governing equations are solved numerically using an implicit finite difference technique. A parametric study is performed and the effect of mass diffusion, porosity and viscoelastic parameter are presented and discussed graphically.
4. Reliability and Cost Analysis of a Stand by Redundant System with Critical Human Errors
Author : Ravindra Pratap Singh and G. K. Dubey
Keyword : Standby system, Human error, Parallel redundancy, Reliability.

Volume: 4,Issue:1,PP: 25 - 33,Year:(2013)
This paper deals with the reliability, availability, M.T.T.F. and Cost analysis of a system having two identical unit in parallel redundancy. Both the units can suffer three modes of failures e.g. major, minor and critical human errors. Minor failure brings the unit into degraded state while a unit fails completely due to a major failure and a human failure. The repair is given only when the system is in degraded or failed state. All the failures are exponentially distributed or failed states, where as all repairs are distributed generally. Using Laplace technique various problems are evaluated. Some particular cases are dealt along with graphical representation.
5. Study of Charged Particle scattering in Presence of Laser Field
Author : J. Shukla, S. K. Varshney and K. S. Varshney
Keyword : Laser Field, Charged Particle.

Volume: 4,Issue: 1,PP: 34 - 38,Year: (2013)
We report application of the scattering variational principle with waves as a trial basis set. Differential cross sections are obtained for stable negative ion with a binding energy less than 50 meV. Both studies reported the binding energy for the 4s2 4p to be close to 45 meV.
6. An Improved Blind Signature Scheme
Author : Kimmi Gupta and Seema Verma
Keyword : Blind Signature, Digital Signature, Discrete Logarithm Problem.

Volume: 4,Issue: 1,PP: 39 - 44,Year: (2013)
Blind Signature is a modification of Digital Signature. The conception of blind signature is that the requester enables to derive the signature but the signer disables to link a pair of signatures. This study proposes an improved blind signature scheme with high security and improved performance.
7. Algorithm to prevent Wormhole attack on AODV protocol in MANET
Author : Richa Jha and Shikha Pandit
Keyword : MANET, AODV, Worm hole, Ad Hoc on demand Distance Vector, Routing Protocol.

Volume: 4,Issue: 1,PP: 45 - 49,Year: (2013)
In MANET, nodes communicate through a wireless link. Each node in MANET can work as a sender, receiver as well as router. Communication between nodes or network depends upon the trust on each other. Wormhole attack is one of the serious routing attacks on MANET. In wormhole attacks, one malicious node tunnels packets to the other malicious node. If source node chooses this route, malicious nodes have the option of delivering the packets or dropping them. In this paper, the impact of wormhole attack is analyzed on AODV Routing protocol in MANET and an algorithm to prevent wormhole attack. This paper would be a great help to understand wormhole attack and how to prevent wormhole on AODV of MANET.
8. Elastic Properties, of La1.86Sr0.14 CuO4 High Temperature Superconductor
Author : Kamal Kant Paliwal and K. S. Varshney
Keyword : Elastic Properties, High Temperature Superconductor

Volume: 4,Issue: 1,PP: 50 - 52,Year: (2013)
The expressions for the second order (SOE) and third order (TOE) elastic constants for the high temperature superconductor La1.86 Sr0.14 CuO4 (LSCD) having tetragonal Structure have been derived using the finite deformation theory. The derived expressions have been used to compute the values of (SOE) and (TOE) constants of La1.86 Sr0.14 CuO4 material are being presented for the first time.
9. Study of Molecular Interaction Furfuryl Salicylate with Butanol and Pentanol
Author : Shakti Singh and R.K. Arya
Keyword : ultrasonic velocities, binary liquid mixture, Salicylate with Butanol and Pentanol.

Volume:4,Issue:1,PP: 53 - 56,Year:(2013)
The ultrasonic velocities in binary liquid mixtures of furfural Salicylate with Butanol and Pentanol have been measured at entire mole fraction range at 35C, using ultrasonic interferometer of frequency 2Mhz. Isentropic Compressibility (s), deviations of s from ideal mole fraction mixture law. The values of acoustic parameters are explainable considering by the varying extent of molecular interactions and the difference in free volumes between unlike molecules. The measurements of ultrasound velocity density & other acoustic parameters and other excess values are evaluated. From the excess values of parameters, the nature and extent of the interactions in these binary systems are discussed.
10. MHD Flow of a Dusty Visco-Elastic Fluid through Porous Medium Induced By an Impulsively Started Vertical Plate with Velocity Decreasing Exponentially With Time and Thermal Diffusion
Author : Santosh Kumar Srivastava and R. K. Khare
Keyword : MHD, Porous Medium and Dusty Visco-Elastic Fluid, Thermal Diffusion.

Volume:4,Issue:1,PP: 68 - 76,Year:(2013)
In the present paper, the MHD flow of a dusty visco-elastic fluid through porous media induced by an impulsively started vertical plate with velocity decreasing exponentially with time and thermal diffusion in the presence of uniform heat and mass flux at the plate is presented. The expressions for velocity distribution of the dusty fluid, dust particles, temperature & concentration distribution are obtained. The effects of various different parameters are discussed graphically.
11. Analysis of Reliability and MTTF of a Complex System with Effects of Connection and Disconnection
Author : Kavita Soni
Keyword : Steady state availability, time dependent availability system reliability down.

Volume:4,Issue:1,PP: 77 - 83,Year:(2013)
In this paper, we study of the reliability and MTTF analysis of a Complex system in which the failed unit should disconnected for the smooth functioning of the other unit in a reduced efficiency state. The effect of human error on the system is also studied. The graphs of reliability and MTTF are given to highlight the importance of the results obtained.
12. Hydromagnetic Heat and Mass Transfer Flow with Time Dependent Suction and Porous Medium In Rotating System
Author : Vinod Kumar
Keyword : free convection, mass transfer, unsteady flow, porous medium.

Volume: 4,Issue: 1,PP: 84-98,Year: (2013)
In this paper, we study of the free convection and mass transfer effects in the unsteady flow of an incompressible, electrically-conducting, viscous liquid in a porous medium past an infinite porous vertical plate with time dependent suction in a rotating system in the presence of uniform magnetic field applied perpendicular to the flow region is studied. The effects of magnetic parameter rotation parameter, Grashof number, heat source parameter, Prandtl number permeability parameter, modified Grashof number and Schmidt number on primary velocity and secondary velocity for cooling case and the effects of the above stated parameters on primary velocity and secondary velocity for heating case are discussed with the help of graphs while the effects of these parameters on skin-friction are discussed with the help of tables. The rate of heat transfer and the rate of mass transfer are also discussed with the help of tables.
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