ABSTRACT The paper presents an X slot rectangular microstrip patch antenna with quarter wave feed technique that operates in wireless local area network applications. Microstrip antenna with X slot is proposed to achieve circular polarization, reduce the size and widen the bandwidth. The antenna is operated at 3.5 GHz. The impedance bandwidth (VSWR < 2) […]

ABSTRACT The purpose of this paper is to reduce the machining time of a crankshaft machined in a small scale industry where most of the work is done manually. The systematic stop watch time study is applied in the methodology on various processes of operation performed in the machining unit and total time is calculated […]

ABSTRACT Project management discipline has showed its impact on software industry and has been now established as core concept for organizing, innovative as well as strategic endeavors. Software development organization follows some process when developing a software product. Software Methodology plays a key role software development process on which the process is based. The particular […]

 ABSTRACT This article proposed a new single switch control based single phase inverter using dynamic evolution controller. Single switch control technique reduces the losses which is occurs during switching operation of an inverter and also minimize the cooling equipment cost for control switches. An inverter is a non-linear time invariant system; hence DEC makes it […]

ABSTRACT This paper presents the concept of ring oscillator design using CMOS thyristor techniques. They generate extremely low frequency signals. They are implemented in 180nm technology with 1.8 volt (or) 2.5 volt power supply and 0.8pF load capacitance. Conventional CMOS ring oscillator generates the frequency of the order of MHz. In order to generate low […]

ABSTRACT This paper presents a novel method for inspecting the interior surface of pipes using laser-optics.  The variation in the local curvature of a laser ring projected onto the pipe’s surface is measured via an image taken by an omnidirectional camera, hence the name omnidirectional laser optics.  There will be sharp changes in the curvature […]

ABSTRACT In this paper, design of compact Microstrip patch antenna using parasitic technique for line of sight communication is proposed, having hexagonal shape ground plane. The proposed antenna has slots in the patch to achieve wideband. The antenna model is simulated using Finite element method at the frequency 4.65 GHz to 5.25 GHz. The antenna […]

ABSTRACT The smart antennas are widely used for wireless communication, because it has a ability to increase the coverage and capacity of a communication system. Smart antenna performs two main functions such as direction of arrival estimation (DOA) and beam forming. Using beam forming algorithm smart antenna is able to form main beam towards desired […]

ABSTRACT In this paper, the effect of tool rake, tool shape, tool radius and tool material on the cutting forces was investigated when machining mild steel work piece material. The machining tests were carried out on a shaper. For cutting force measurement, a test setup that was designed and constructed for cutting force measurement was […]

ABSTRACT Designing an optimized hybrid power system model is considered to be one of the most challenging areas in Electrical Engineering stream. The hybrid model which is developed should be of cost effective and environmental friendly. To accomplish this task, it is of utmost importance to carry out optimization process with the help of dedicated […]