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Road-traffic congestion is becoming a serious concern in developing countries and impacts the economy of countries gravely. Increasing congestion on urban roads presents a genuine threat to the economic growth and livability of city regions. Most traffic congestions are caused due to unplanned road networks, high volumes of vehicles and presence of critical congestion areas. Traffic congestions not...
A two-dimensional analytical method for the performance evaluation of axial flux permanent magnet (AFPM) machine has been presented in this paper. The method computes the electromagnetic torque, magnetic field distribution, cogging torque and back EMF of the machine using quasi-3D modeling. Fourier Transform is used for the solution of Maxwell's equations in different regions of the AFPM machine....
The remote is the widely used technology for monitoring the different resources available on earth surface from remote location. It is very important to interpret the different resources with the help of the satellite images. So, the purpose of this research paper is to classify the 1RS P-6 LISS-III satellite image using the artificial neural network. The artificial neural network uses the supervised...
This paper deals with dynamic simulation of a directly driven Permanent Magnet Synchronous Generator (PMSG) with a full scale converter interfaced to the grid. A comparative assessment of two control strategies is the main focus of this paper. The first is the SVM based voltage oriented control strategy and the second is the hysteresis current control strategy. Maximum power point tracking and pitch...
The paper compares performance parameters such as flux density distribution, average torque, etc. of an 8-slot 6-pole Permanent Magnet Brushless (PMBL) motor with surface mounted (SMPM), surface inset (SIPM), and interior PM (IPM) rotor topologies using Finite Element Analysis (FEM). Successful operation of Permanent Magnet (PM) motors with cogging/ripple free torque depends on sinusoidal flux density...
In this paper, we propose a total variation (TV) based filter adapted to the statistics of quantum noise which follows Poisson distribution, for the enhancement and restoration of the digital mammographic images. The proposed method is developed in a variational framework which reduces to a minimization problem. The proposed model consists of two terms viz. data fidelity term and regularization function...
TEM horn antennas are widely used in ultra wide band (UWB) radar and UWB communication applications due to its wide bandwidth and non-dispersive characteristic. Linearly tapered constant impedance TEM horn is most commonly used variation of TEM horn due to its simplicity and ease of fabrication. In many practical systems cylindrical sections are added at the aperture of TEM horn to improve its low...
Events give important information about the behavior of a system in a summarized form. In the past, events have played an important role in breaking the functional requirements of the system in the ??event partitioning approach??. Our previous work has shown that events can be a starting point in object-oriented analysis of requirements. Every event triggers a use case in the system, hence should...
This paper presents a multiobjective optimization framework based electricity portfolio allocation model for generating companies (GenCos) in deregulated electricity market. Since, it is competing and conflicting multi-objective optimization problem, this paper applies a multi-objective particle swarm optimization (MOPSO) based meta-heuristic technique to provide Pareto frontier in a single simulation...
Use Case has been one of the popular ways to start object-oriented analysis (OOA). But several problems have been cited with use case in the literature. Our previous work has shown that domain requirements can be broken in terms of events. We have documented events derived from requirements as Event Pattern/Template and proposed an event meta-model. This paper describes a detailed process to show...
It is well known that the images, often used in variety of computer applications, are difficult to store and transmit. One possible solution to overcome this problem is to use a data compression technique where an image is viewed as a matrix and then the operations are performed on the matrix. In this paper, image compression is achieved by using singular value decomposition (SVD) technique on the...
There are available several watermarking techniques used for data security. Digital media normally assures fairly high quality, nevertheless can be easily reproduced in a perfect form. This perfect reproducibility takes an advantage from certain point of view, while it produces an essential disadvantage, since digital media is frequently copied illegally. A solution of this problem is to embed digital...
The motivation for our work is to identify a space for silicon carbide (SiC) devices in the silicon (Si) world. This paper presents a detailed experimental investigation of the switching behaviour of silicon and silicon carbide transistors (a JFET and a cascode device comprising a Si-MOSFET and a SiC-JFET). The experimental method is based on a clamped inductive load chopper circuit that puts considerable...
This paper presents, a domain independent tool, developed in JAVA that automates the process of extraction, analysis and classification of events from textual requirements, expressed in English as a natural language. A study on various existing event extraction tools shows that they are either domain specific or take events as actions that occur at a particular time. There is no tool which extracts...
We consider the min-cost multicast problem (under network coding) with multiple correlated sources where each terminal wants to losslessly reconstruct all the sources. This can be considered as the network generalization of the classical distributed source coding (Slepian-Wolf) problem. We study the inefficiency brought forth by the selfish behavior of the terminals in this scenario by modeling it...
This paper presents a framework for multi-biometric match score fusion when non-ideal conditions cause conflict in the results of different classifiers. The proposed framework uses belief function theory to effectively fuse the match scores and density estimation technique to compute the belief assignments. Fusion is performed using belief models such as transferable belief model (TBM) and proportional...
A pulse power system (1 MV, 5 0kA, and 100 ns) based on dual polarity charged Marx generator and Blumlein pulse forming line (PFL) was built to generate high power microwaves. This paper describes the inherent prepulse present with the Blumlein configuration and the mitigation strategies adopted. Further, a qualitative attempt to verify the generation of high power microwave output on the system is...
Automatic fingerprint identification systems use level-1 and level-2 features for fingerprint identification. However, forensic examiners utilize inherent level-3 details along with level-2 features. Existing level-3 feature extraction algorithms are computationally expensive to be used for identification. This paper presents a novel algorithm for fast level-3 feature extraction and identification...
Ancillary services (AS) are essential for secure, stable and economical operation of the power system. Moreover, AS plays a vital role in free and fair trade of electricity in emerging competitive power market. Hence, the AS procurement is a major operational function for the independent system operator (ISO) in the electricity market. Spinning reserve (SR) is one of the most important AS required...
This paper proposes distributed traffic monitoring and controlling model using sensors and dedicated traffic servers. This model is described as basic role-oriented processes communicating though primitive interaction protocols. The model is aimed to provide an enabling communications framework upon which multi-agent system models can be organized and built to be used for an simulation of an road...
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