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This paper proposes and analyses a method that will increase the number of voltage level of any existing topology, only thing is load should be connected across H-bridges. In order to verify the proposed cell, various existing topologies have been simulated and analyzed. The purpose of the circuit proposed is to reduce the use of IGBT switches and hence improving the Total Harmonic Distortion.
Recently, within the family of FACTS, the distributed power flow controller is an additional device. This paper highlights on voltage sag mitigation which is one of the burgeoning power quality issues. It deals with the working concept of distributed power flow controller for compensating unbalanced three phase line currents in the transmission system. The single phase series converters of DPFC are...
A variety of health and behavioral states can potentially be inferred from physiological measurements that can now be collected in the natural free-living environment. The major challenge, however, is to develop computational models for automated detection of health events that can work reliably in the natural field environment. In this paper, we develop a physiologically-informed model to automatically...
In this paper we propose a novel method for face recognition on frontal faces. In our method the coarse level shape information of the face is captured by Radon transform as it captures the shape information efficiently. A feature descriptor for each face is computed by applying local binary patterns (LBP) on Radon transform coefficients and computing the histogram of LBP. LBP is used due its computational...
This paper focuses on controlling synchronous dynamic random access memory (SDRAM) higher data transfer rates when multiple locations in internal memory array are accessed successively. The controller is designed to interface DDR memory modules and memory ICs with low cost FPGAs and high clock frequency of 674.491 MHz at 28nm technology on Kintex 7 FPGA device with less logic utilization. The DDR...
Very Fast Transient Overvoltages (VFTOs) which are caused mostly due to disconnector operations in Gas Insulated substations (GIS) impose several problems on the insulation of the system and also to the connected high voltage equipment. Therefore, it is important to do a VFTO study in GIS. In this paper, VFTO for switching operations in a 420kV GIS with different trapped charges are estimated. The...
The increasing trend for use of nonlinear loads in power system results in generation of more harmonics and hence deterioration of power quality. This calls for accurate estimation of harmonics in power system so that more effective compensation measures are designed. However, accurate computation of all the harmonics is a challenging problem in power system. Even though many algorithms have been...
Web has grown enormously and is still growing rapidly day by day. With this huge amount of information in the web it has become difficult for the search engines to retrieve the required and relevant information efficiently. Web mining techniques, using different approaches, have contributed a lot in providing the relevant information to the user query. This paper introduces a new method for prioritizing...
To simulate an efficient Intrusion Detection System (IDS) model, enormous amount of data are required to train and testing the model. To improve the accuracy and efficiency of the model, it is essential to infer the statistical properties from the observable elements of th e dataset. In this work, we have proposed some data preprocessing techniques such as filling the missing values, removing redundant...
With growing internet using demands, the need of services at various scales of Quality of Service (QoS) has made appropriate classification of these types of services mandatory. Therefore, the Differentiated Services Architecture has been proposed for service differentiation at various scales of services. DiffServ network is based on traffic classification mechanism. To measure the measurement of...
This paper proposes a Pipeline Monitoring system using the technology of Wireless Sensor Networks. This research involves the development of a Remote Condition Based Monitoring application for Oil and Gas pipelines using over 100 Wireless Sensor Network Motes. This paper describes the research methodology and a step-wise system development procedure. It starts with the description of an application...
Software testing approaches are mainly divided into three types i.e. code based testing, specification based testing and model based testing. In model based testing, the testing can be started from the design process at the beginning phase. So, early detection of faults can be achieved by using this approach. An approach for the generation of test cases from UML (Unified Modelling Language) activity...
Efficient handoff is an important issue in wireless cellular networks in order to provide Quality of Service (QoS) to the users and to support users' mobility. A related important issue in the cellular networks is the call admission control (CAC). The design of the call admission control schemes is especially challenging given the limited resources, and the mobility of users encountered in such networks...
Vehicle speed detection is used to estimate the velocity of the moving vehicle using image and video processing techniques. Without any camera calibrations video is captured and analyzed for speed in real time. By employing frame subtraction and masking techniques, moving vehicles are segmented out. Speed is calculated using the time taken between frames and corner detected object traversed in that...
Thermosonic wire bonding is a well-known process which combines heat, ultrasonic energy and force to bond small wires to complete an electrical path from a metalized surface on a microchip to another metalized surface on the substrate of the circuit and the bonding occurs through the process of atomic diffusion. The bonding wire materials presently used in the industries are primarily gold (Au) and...
Gas Insulated Substations (GIS) have found wide use in the past few decades. They offer several advantages over traditional Air Insulated Substations (AIS) which include superior dielectric strength, limited space requirements. Gas Insulated Busbar (GIB) is a critical part in a GIS since it serves as a component for tapping power for subsequent distribution to various interconnected components. Its...
Gas insulated substation (GIS) reliability has been proven for more than forty years, yet some failures has been reported. Some of the failures are due to the presence of metallic and non metallic particles inside the GIS compartment. The defect can be generated in GIS during production, maintenance, installation and due to ageing of the component. The particle can give rise to field nonuniformities,...
In this paper we propose a novel JL transistor with triple metal gate structure (JLTM). The DC, analog and RF performance parameters of the proposed JLTM have been compared with one standard JL transistor with single metal structure (JLDM). The DIBL and SS of JLTM reported are 0.0059 and 61.838 mV/dec respectively. Analog performance parameters gm, gm/Id, gm/gd has also been reported to be improved...
The field of signal processing is a host of mathematical tools, such as linear system theory and Fourier transform, which are used extensively in optics for the description of the optical filtering. This paper provides the mathematical analysis of optical filtering techniques. Analysis shows the detailed derivation and implementation of optical filtering techniques by Mach-Zehnder interferometer,...
Conventional MOSFETs has reached to their scaling limits due to the physical limitations, so alternative transistor structures and use of suitable materials is the subject of current research. In this paper, the analog and RF performance of Double Metal Double Gate (DMDG) MOSFETs are investigated for its suitability to be used for analog and RF applications. The different analog parameters like output...
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