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This paper presents a CPW-fed antenna for WLAN application. This Antenna satisfies the licensed frequency band (2.4 to 2.480GHz) having return loss lower than -10 dB. This antenna is designed on a substrate with dielectric constant εr =4.4. With a size 27.8mm×27mm×1.6mm the antenna operates for WLAN application. The effects of shape, length, size, and location of feeding point, substrate and their...
This paper presents a compact novel CPW-fed antenna for WLAN/RFID applications. This Antenna satisfies the licensed frequency band (5.15 to 5.95 GHz) for WLAN and (5.725-5.875) GHz for RFID having return loss lower than -10 dB. The antenna is designed on a substrate with dielectric constant εr=4.4.With two different substrate thickness the antenna can be used for different applications. The effects...
The central idea of this paper is to propose an innovative watermarking scheme for digital image authentication which withstands common image processing attacks. Some pixels are randomly selected from original image, so that all of them have a valid 3 × 3 neighborhoods. A binary sequence is constructed from those pixels by comparing them against average values of neighborhoods. The binary sequence...
The field of object searching and recognition systems is an increasingly popular area of focus for industry and research labs alike. Object searching mechanism is a challenging task. The proposed system makes use of computer vision techniques. Real time object search poses many difficulties in recognizing objects. These difficulties can be overcome by Triangular Matrix Search Algorithm and Real Time...
Tannery effluent (sludge, wastewater) is treated by natural way. The waste sludge has been taken for the following two experiments, namely Neutralization process and Ferric alum treatment process. The alkali chemicals neutralized by pyroligneous acid which is obtained by pyrolysis process of wood. This sludge is sent out for drying. The dried sludge contains some biological waste and other organic...
The face recognition problem is made difficult by the great variability in head rotation and tilt, lighting intensity and angle, facial expression, aging, partial occlusion (e.g. Wearing Hats, scarves, glasses etc.), etc. In this paper two multi scale techniques Discrete Cosine Transform and Discrete Wavelet Transform are used. Discrete Cosine Transform is applied by retaining various levels of DCT...
This paper proposes an application of Fast Voltage Stability Index (FVSI) to Reactive Power Planning (RPP) using Evolutionary Programming (EP). FVSI is used to identify the weak buses for the RPP problem which involves experimental process of voltage stability analysis based on the load variation. The point at which FVSI close to unity indicates the maximum possible connected load and the bus with...
Voltage references are essential components of analog VLSI circuits. A reference source is expected to remain constant against temperature and supply voltage fluctuations. First order bandgap voltage references show variation in terms of 'mV against temperature, which may not be adequate for some high precision applications. Curvature corrected bandgap reference(BGR) is an attempt to improve stability...
This paper presents comparison of the time specification performance between two controllers for an inverted pendulum system. The objective is to determine the control strategy that delivers better performance with respect to pendulum's angle and cart's position. The inverted pendulum represents a challenging control problem, which continually moves toward an uncontrolled state. The problem is to...
In this paper, two dimensional Photonic Crystal square lattice circular ring resonator based Bandpass Filter (BPF) is designed by coupling in-line quasi waveguides and resonant cavity. The output efficiency of the circular ring resonator is investigated by varying size of the cavity. The normalized transmission spectra of circular Photonic Crystal Ring Resonator (PCRR) have been studied by using the...
In this paper, an improved technique for evolving wavelet coefficients refined for compression and reconstruction of fingerprint images is presented. The FBI fingerprint compression standard uses the cdf 9/7 wavelet filter coefficients. Lifting scheme is an efficient way to represent classical wavelets with fewer filter coefficients. Here Genetic algorithm (GA) is used to evolve better lifting filter...
A planar Sierpinski fractal antenna for multiband applications is proposed, designed, simulated and tested. The slotted ground plane and the perturbed Sierpinski fractal patch are employed to achieve the desired wideband characteristics. The implemented antenna including the ground plane has a total 3 dimension of 24×14×0.8mm3. The measured 10-db return loss bandwidth is 2.55-2.8GHz(54%), 4.95.3GHz(56%),6...
A Sierpinski carpet edge-fed microstrip patch antenna is proposed for size reduction of rectenna of Wireless Power Transmission (WPT) System. The conventional patch antenna is designed based on transmission line model with the characteristics impedance of 50 Ω. The fractal geometry for the conventional antenna is generated up to second iteration and simulated. The results shows that the maximum of...
In the video on demand system, user waiting time and bandwidth allocation are major challenges for the video broadcasting in mobile ad hoc environment. There are many broadcasting schemes which provide efficient bandwidth allocation and optimal user waiting time. In our work we divide channel into two groups (Regular Channel and Sub Channel) and video data into segments and sub-segments. Broadcasting...
The objective of the present study is to examine whether a simple affine-linear model of autonomous nervous activities would be able to reproduce the characteristic features of MAP regulation observed over long periods of time. In this study, we approach the problem first by constructing a modified nonlinear model for the human ABP regulation system. By simulating with various gain combination values,...
A novel method to diagnose the bearing fault is presented. The proposed method is based on the analysis of the bearing vibration signals using Singular Spectrum Analysis (SSA). SSA is a non-parametric technique of time series analysis that decomposes the acquired bearing vibration signals into an additive set of time series to extract information correlated with the condition of the bearing. Information...
The basic objective of economic dispatch of electric power generation is to schedule the committed generating unit outputs so as to meet the load demand at minimum operating cost while satisfying all unit and system equality and inequality constraints. Due to increasing concern over the environmental considerations, society demands adequate and secure electricity not only at the cheapest possible...
It is often required to view details about hardware and software components installed in our system, for example, versions and publishers of installed software applications, tracks and sectors on the disk drive, total capacity of disk drive, MAC addresses of network adapters, list of port connectors, PNPDevicelDs of peripherals, etc. These details may be required for various reasons, for example,...
Data/image compression is a significant application of linear algebra. The need to minimize the amount of digital information stored and transmitted is an ever growing concern in the modern world. Singular Value Decomposition (SVD) is an effective tool for minimizing data storage and data transfer. The proposed work explores image compression through the use of SVD on image matrices. The performance...
In the design of electrical machinery, direct search methods of conventional optimization techniques are widely used. In the recent years, Genetic Algorithm (GA) has been successfully applied to the design optimization of electromagnetic devices and electrical machinery. In this paper, an optimal design method to optimize the cost of three phase Induction Motor (IM) is presented. The motor design...
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