The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Automatic gender detection through facial features has become a critical component in the new domain of computer human observation and computer human interaction (HCI). Automatic gender detection has numerous applications in the area of recommender systems, focused advertising, security and surveillance. Detection of gender by using the facial features is done by many methods such as Gabor wavelets,...
An exhaustive method for verifying & optimizing the performance of high frequency mirror inverter for induction heater is presented here. Heating coil of the induction heater is made of litz wire which controls the skin effect and proximity effect of conductor operating at high frequency. With the calculated optimum values of inductance and resistance at a particular operating frequency, HF mirror...
The AGC of reheat interconnected two area power systems are characterized by non-linearity and uncertainty. A hybrid neural network and fuzzy control is proposed for automatic generation control in power systems. Recurrent neural network is employed to forecast controller and system's future output, based on the current Area Control Error (ACE) and the predicted change-of-ACE. The Control Performance...
Economic Load Dispatch is one of the major functions of modern Energy Management System (EMS), which determines the optimal real power settings of generating units with an objective of minimizing the total fuel cost. All industrial practice, the fuel cost of generators can be treated as a quadratic function of real power generation. In fact, valve point loading effect in thermal power plants calls...
Today in the world of cloud and grid computing integration of data from heterogeneous databases is inevitable. Virtual Database Technology (VDB) is one of the effective solutions for integration of data from heterogeneous sources. This will become complex when size of the database is very large. MapReduce is a new framework specifically designed for processing huge datasets on distributed sources...
Mobile devices like PDAs or mobile phones have become widespread. Similarly network functionality like GSM, Bluetooth or WLAN has become a standard. Nevertheless, not many applications take mobility into account. An application and its communication component are tightly coupled and the applications assume that network behavior does not change. Here in this project we propose and implement a new component...
Wireless sensor networks can provide low cost solution to variety of real-world problems. As sensors have limited power, any security mechanism for the sensor network must be energy efficient. In this work we propose an energy efficient secure routing for wireless sensor networks based on dynamic key cryptography. We propose a Weight Based AODV protocol for the routing process in which the weight...
In this paper we are given concept of our WiMAX (Worldwide Interoperability for Microwave Access) network performance for QoS monitoring and optimization solution for BS (Base Station) with multimedia application. In the communication sector, the optimal objective is to equate quality and cost. Due to its large coverage area, low cost of deployment and high speed data rates. WiMAX is a promising technology...
Although many approaches for face recognition have been proposed in the past, none of them can overcome the main problem of lighting, pose and orientation. For a real time face recognition system, these constraints are to be a major challenge which has to be addressed. In this proposed work, a methodology is adopted for improving the robustness of a face recognition system based on two well-known...
Face recognition technology has evolved as a popular identification technique to perform verification of human identity. By using the feature extraction methods and dimensionality reduction techniques in the pattern recognition applications, a number of facial recognition systems has been produced with distinct measure of success. Various face recognition algorithms and their extensions, have been...
A new discrete Fractional Fourier transform based Kaiser-window design technique has been adopted in this paper for the synthesis of a band-pass filter (BPF) in finite impulse response (FIR) form. The filter design is attempted with the aim of efficient power feedback with the measured sensor data, to the regulating system of nuclear reactors. The ill effects of integer and fractional order noise...
Nowadays SiGe HBTs are surpassing even the fastest III-V production devices in the high-speed orbit. In this paper a comprehensive course of action to model the power gain of High Frequency 100 nm SiGe HBT is depicted with the help of S and Y- parameters. In this effort, the issues entailed in simultaneous optimization of fmax are addressed as well as measurements of power-gain are carried out. This...
Edge of image is one of the most fundamental and significant features. Edge detection is always one of the classical studying projects of computer vision and image processing field. It is the first step of image analysis and understanding. With the continuous improvement of remote sensing image, especially the appearance of Digital Aerial Image, edge detection is necessary step to extract information...
The necessity of Intellectual Properties (IP) reuse to shorten the design time and the complexity makes the large scale System On Chip (SoC) more challenging. An efficient bus protocol for the core communication between IP block is OCP. Open Core Protocol (OCP) defines the only non-proprietary, openly licensed, core centric protocol with high-performance, bus-independent interface between IP cores...
This paper presents a joint timing and carrier frequency offset estimation scheme for Orthogonal Frequency Division Multiplexing (OFDM) over an Additive White Gaussian Noise (AWGN) channel, flat fading and frequency selective fading (Rayleigh channel). Estimating the correct Carrier frequency offset (CFO) minimizes the inter carrier interference (ICI). Orthogonality is maintained by using Maximum...
Local minimum is incorporated problem in neural network (NN) training. To alleviate this problem, a modification of standard backpropagation (BP) algorithm, called BPCL for training NN is proposed. When local minimum arrives in the training, the weights of NN become idle. If the chaotic variation of learning rate (LR) is included during training, the weight update may be accelerated in the local minimum...
The Dynamic Voltage Restorer (DVR) provides an advanced and economical solution for both voltage sag and swell problems. The voltage-restoration process involves real-power injection into the distribution system. The Interline DVR (IDVR) proposed in this paper provides a way to compensate the voltage deviation caused in a feeder. The IDVR consists of several DVRs connected to different distribution...
Switched reluctance motors have drawn attention in the field of aerospace and special industrial applications. Majority of the papers are confined to radially laminated rotors. Axially laminated rotors enhance the electromagnetic torque than with radially laminated rotors. This makes it suitable for applications like gears, blowers etc .Doubly excited motors solve the energy circulation problems which...
The interactions between input/output variables are a common phenomenon and the main obstacle encountered in the design of multi-loop controllers for interacting multivariable processes. In this paper, a method for controlling multivariable processes is presented. The controller design is divided into two parts: firstly, a decoupling matrix is designed in order to minimize the interaction effects...
This paper deals with simulation and implementation of the soft switched self driven synchronous rectified push-pull converter. External driven implementation of synchronous rectification is considered. This converter has advantages like reduced switching losses, stresses and EMI. The 48V DC is efficiently reduced to 12V DC using a DC to DC converter at 20 KHz switching. Input DC is converted into...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.