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The plant model is developed and an appropriate optimality criterion is selected to maintain strain, strain rate and temperature. Key words: MAntibacterial assay, eco-friendly, nanoparticles, silver nanoparticles, zone of inhibition Reference [1] Kim, S. The standard Arrehenious equation of 0.3% carbon steel is utilized to obtain an optimal deformation path such that the percentage of volume fraction recrystallization should be 1. Xia,"Microstructure and property of a medium carbon steel processed by equal channel angular pressing", materials forum volume 32 –2008, Edited by J. The presence of zone of inhibition clearly indicated the antibacterial activity of silver nanoparticles. Atomic Absorption Spectrometer(AAS) was used to determine the chemical composition, while other established processes were used to determine other insulating properties like particle size distribution, specific gravity, bulk density, solid density, water absorption, apparent porosity, permeability to air, refractoriness, thermal shock resistance, modulus of rupture, linear shrinkage and thermal conductivity. The chemical analysis showed that all the samples had high percentages of silica and alumina, thereby classifying them as Alumino-silicates. Journal of the clay mineral society Volume 51 number 1 8. U.(2004) An investigation into the use of local clays as a high temperature insulator for electric cookers. IEE (1992) Wiring regulation requirement for electrical installation BS7671 , 15th Edition , A Mclay and co. Meng thesis , Department of mechanical Federal University of Technology Akure, Nigeria. Li Zaigeng and Zhou Ningsheng (2001) Technological advancement in the preparation and application of monolithic refractories. Mahmoud S., Ayman H and Mousa A (2003) Pretreatment effects on the catalytic activity of Jordanian bentonite . Apparent porosity averaged 13% with 0% saw dust and 17% with 40% addition of saw dust bringing them closer to the acceptable range of 20-80%. When comparing the responses, the PID controller provides better performance compared with LQR.

while thermal conductivity averaged 0.493W/mo k with 0% saw dust and 0.134W/mo k with 40% saw dust thereby improving their insulating properties. Resulting tabulated performance indices showed a considerable improvement in settling time besides reducing steady state error. Kirk: Optimal Control Theory: An Introduction, Prentice-Hall Inc., Englewood Cliffs, NJ, 1970, pp.

The values for specific gravity, bulk density, solid density and apparent porosity averaged 2.75, 2.04 g/cm3 , 3.18 g/cm3 , and 13% respectively and they were within the internationally accepted range.

The values for linear shrinkage, permeability to air and thermal shock averaged 8.57% 69.4, and 29 respectively and these also were within the accepted limits.

This approach is applied to obtain the desired percentage of volume fraction recrystallization of '1' from an initial value of '0'. Antibacterial assay of synthesized Ag NP was carried out in solid (Nutrient Agar) growth medium against J., Interaction of silver nanoparticles with biological surfaces of Caenorhabditis elegans.

'Investigation and Improvement of Ejector Refrigeration System Using Computational Fluid Dynamics Technique' Energy Conversion and Management 2007; 56–64. Experimental investigation of a novel steam ejector refrigerator suitable for solar energy applications. In this Paper, a new approach for controlling microstructure development during hot working process by percentage of volume fraction recrystallization is proposed. One of the approaches is based on the Optimal Control theory and involves the developing of state space models to describe the material behavior and the mechanics of the process. The elemental composition of synthesized sample was confirmed by EDS analysis.

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