In this paper, an investigation for the enhancement strategy of bandwidth performance and analysis of different types of losses associated with reflectarray antennas was carried out. Studies are carried out using different commercially available dielectric materials with dielectric permittivity values.…

It is widely agreed that the radio waves are more complex in confined environments, such as coal mine tunnels and buildings. In this paper tried to interpret propagation characterists of radio wave in the confined environments of mine tunnel. We…

System error measurement is the essential step in actuator frequency characteristic testing and is studied to provide qualified results for system error compensation. We explored the approaches using swept sine and fast Fourier transform. We found that digital smoothing is…

In this paper, we designed a controller for an interval system and fixed cost function. The closed-loop system stability and cost function is guaranteed to be no more than a certain upper bound with all admissible uncertainties as well as…

IN-SITU Al2O3 SiC C having 20 wt%, 25 wt%, 30 wt% and 35wt% of powdered particulate were fabricated by liquid metallurgy (stir cast) method. The composite specimens were machined as per test standards. The specimens were tested to know the…

TCR-FC (Thyristor Controlled Rectifier with Fixed Capacitor) is a well known combination to improve voltage stability. Supplementary signals such as variation in reactive power, variation in frequency is used to enhance the dynamic response of the system. In this paper…

Photoelastic stress analysis is a technique that provides us with a complete (full-field analysis) stress distribution over an entire object/structural member of interest. It is based on the property of some transparent materials to exhibit colorful patterns when viewed with…

In this research we present and analyzed the mathematical model for achieving equal humanity factor. The model revolves around human class, Information technology class and Philanthropy. The relative analysis of proposed mathematical model for humanity leads to expose several stable…

Solar stills of four different capacities were fabricated and tested for water distillation. The distilled water production rate performance (PRP) was analyzed. The highest rate of PRP was recorded between 11.30 am and 12.30 noon in all the solar stills…

Information security is a mandatory issue in current information technology world. A secure overlapping method is proposed in this paper whose key functionality is to distribute the key words at different places inside an image. It requires the extraction of…