Category: Uncategorized

A Review on Maximum Power Point Tracker (MPPT) for Photovoltaic (PV) Systems

ABSTRACT Maximum Power Point Tracking (MPPT) is a modified feedback Technique where operating point of power converter connecting source to load is constantly dithered by a small amount. In general, the output impedance of energy harvesting sources varies with input level, temperature, often input frequency, and other parameters. Matching the resulting impedance deterministically is virtually […]

Unsteady Flows of Low Concentrated Aqueous Polymer Solutions Through a Planar Channel with Wall Slip

ABSTRACT The objective of this paper is to investigate unsteady flows of a low concentrated aqueous polymer solution through a planar channel under Navier-type slip boundary conditions. We obtain analytical formulas for the calculation of the time-dependent velocity field. We also show the existence of a unique solution for the corresponding initial-boundary value problem in […]

Design of Fast Floating Point Multiply Accumulate Unit using Ancient Mathematics for DSP Applications

ABSTRACT Digital Signal processing became an application to create high speed data processing systems like 3D rendering, 4G mobile internet, etc., we need best processors with high performance data path units and there is a growing need for research on alternative methods for signal processing hardware implementation. In most systems using digital signal processing Multiply-Accumulate […]

Optimal Joint Maximum Likelihood based Estimator for Discrete Nonlinear Dynamic Systems

ABSTRACT The Joint Maximum Likelihood (JML) criterion is used to derive the optimal recursive-iterative estimator for discrete nonlinear dynamic systems. For linear systems this approach constitutes, in its recursive form, the structure of the Kalman Filter.  The JML approach to estimation of nonlinear systems can be solved by batch formulas at the cost of extensive […]

Study and Analysis of Dielectric Behavior of Fertilized Soil at Microwave Frequency

ABSTRACT This paper reports the experimental results of the dielectric behaviour of mixture of different types of fertilizers and soil at L, S and C frequency bands. A simple and rapid measurement method using microwave free-space transmission technique is used for measuring the dielectric constant. The variations in dielectric constant of soil with different concentration […]

A survey on Energy-Aware Cloud

ABSTRACT The Cloud computing has enabled businesses and individuals to utilise the potential infrastructure in the Cloud without dealing with the cost and complexities associated with large computations. It saves businesses the initial setup, updates and maintenance cost. And individuals are provided by the physical resources they might need for a time they need them. […]

Finite Element Method Analysis of Hydrodynamic Journal Bearing

ABSTRACT The analysis and design of hydrodynamic journal bearings has a great attention to the engineers. Emphasis has been given to design those bearings  so as to avoid metal-to-metal contact .To design these elements, few important characteristics, like load-carrying capacity, maximum pressure and their location lubricant flow requirement between mating surfaces and so on  are […]