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488 articles for “transformation”
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Symmetrical 7-Level Multilevel Inverter with RV Topology
Abstract: A multilevel inverter is a power electronic device which is capable of providing desired alternating voltage level at the output using multiple lower level DC voltages as an input. Multilevel inverter is widely used for high-power high-voltage applications. It can eliminate the need for the step-up transformer and reduce the harmonic content and lower EMI and higher dc link voltages. However, it has some disadvantages such as increased number of …
Published in International Journal of Analog Integrated Circuits · Vol. 1, Issue 1, 2015 · pp. 27–34 Read article
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A Review of Different Iris Recognition Systems
Abstract: Recognition of a person based on the iris structure has become a trending authentication method. Iris recognition systems have many advantages as compared to other authentication methods such as accuracy, reliability and uniqueness and hence it is used in many applications. The main applications are, access control in laboratories and factories, identification for Automatic Teller Machines (ATMs), banks etc., border control in airports and harbors. This paper deals with the …
Published in International Journal of Analog Integrated Circuits · Vol. 4, Issue 2, 2018 · pp. 16–22 Read article
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Hybrid Best Phase Selector
Abstract: The use of renewable resources like the solar energy and various other clean sources of energy has been on an increase in demand in the recent years due to their ease in availability and low cost. This project work is on the design and construction of automatic hybrid best phase selector and changeover switch for three-phase power supply. It provides a means of switching from one-phase of AC mains to …
Published in International Journal of Analog Integrated Circuits · Vol. 5, Issue 1, 2019 · pp. 38–46 Read article
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SOFT COMPUTING A NEW USE OF SOFT COMPUTING, ARTIFICIAL INTELLIGENCE, FUZZY LOGIC & GENETIC ALGO-RITHM IN BIOINFORMATICS
Abstract: Abstract:Soft registering is make a few dormant in bioinformatics, particularly by producing minimal effort, low exactness (rough), great arrangements. Bioinformatics is an interdisciplinary research zone that is the edge between the natural and computational sciences. Bioinformatics settlement with calculations, databases and data frameworks, web innovations, man-made reasoning and delicate registering, data and calculation hypothesis, basic science, programming building, information mining, picture preparing, demonstrating and recreation, discrete arithmetic, control and framework …
Published in International Journal of Analog Integrated Circuits · Vol. 6, Issue 1, 2020 · pp. 12–26 Read article
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Modified Multiple Sub-blocking PTS Technique for Reduction in PAPR in OFDM System
Abstract: OFDM (Orthogonal frequency division multiplexing) is a multi-carrier modulation technique which provides better bandwidth efficiency at high data rate but the problem is it increases the PAPR. This increase in PAPR leads to loss of signal and in order rectify it cost of amplifiers has to be increased. Therefore, peak-to-average power reduction (PAPR) reduction is an important issue which is required to be solved. PAPR can be reduced by using …
Published in International Journal of Broadband Cellular Communication · Vol. 4, Issue 2, 2018 · pp. 23–29 Read article
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Prepaid Electricity Billing and Fuse Monitoring System Using GSM
Abstract: ABSTRACTThe trend of the time has always been in favor of that technology which finally become cost effective as well as an elegant one. Traditional meter reading is performed by the human operator, this requires an extra variety of hard work operator and long working hour to achieve the complete area data reading and billing. Due to the increase in the development of. Residential building and commercial building the meter …
Published in International Journal of Broadband Cellular Communication · Vol. 5, Issue 2, 2019 · pp. 17–26 Read article
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Detecting COVID_19 in X-ray images using artificial neural network
Abstract: In this paper, we propose a method for detecting COVID-19, which is most important for now days in lowering mortality rates. COVID-19 had a rapid impact on our daily lives, businesses, and global trade and transportation. Chest CT scans and CT x-rays reveal particular radiographic abnormalities in people with COVID-19 by means of faster and more efficient representation of the patient's lung that enables for the detection of viral phenomena. …
Published in International Journal of Broadband Cellular Communication · Vol. 8, Issue 1, 2022 · pp. 32–38 Read article
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A Technical Review on Comparison of Speech Enhancement Algorithms
Abstract: The use of mobile speech communication devices has increased by manifold. Mobile communication technology is providing us the mobility and exhibility to communicate irrespective of place and time. The result is that the mobile voice communication systems are often used in high acoustic background noise environment. In such circumstances speech communication suffers from lack of pleasantness and/ intelligibility. To make voice communication intelligible and pleasant in such noisy environments, we …
Published in International Journal of Digital Communication and Analog Signals · Vol. 2, Issue 1, 2016 · pp. 31–39 Read article
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Review – An approach to steganography technique
Abstract: Steganography is the technique that provides the base for secure communication. It is the art of hiding information in some other means of false medium for making a possible secure communication. The information to be hidden can be of any form such as text, image and video etc. and so the cover medium. Unlike cryptography, in steganography after the data is successfully hidden it is not even visible to the …
Published in International Journal of Digital Communication and Analog Signals · Vol. 2, Issue 2, 2016 · pp. 10–16 Read article
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Particle Swarm Optimization to enhance Low Resolution Images
Abstract: In digital image processing enhancement of low resolution images is always a priority field. Construction of high resolution image from low resolution images by using discrete wavelet transform (DWT) to decompose the input low resolution image into several sub band images. The resolution of surveillance video frames can be improved by interpolation between pixels to generate a moderate enhancement. A hybrid novel method is used to enhance low resolution images …
Published in International Journal of Digital Communication and Analog Signals · Vol. 2, Issue 2, 2016 · pp. 17–21 Read article
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Image Processing and Restoration Through a Base Image – A Review
Abstract: ABSTRACTDigital imaging systems had been widely used for many applications including customer photography, microscopy, aerial images, astronomical imaging, and many others., their output photographs/movies frequently suffer from spatially various blur caused by lens, transmission medium, publish processing algorithms, and digicam/item motion. Measuring the amount of blur globally and regionally is a critical problem. it can assist us in getting rid of the spatially various blur and enhancing the visual of …
Published in International Journal of Digital Communication and Analog Signals · Vol. 5, Issue 2, 2019 · pp. 1–8 Read article
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A Hybrid BPS-DCT Based Digital Image Watermarking Technique
Abstract: In this paper a hybrid algorithm using Bit Plane Slicing (BPS) and Discrete Cosine Transform (DCT) for digital image watermarking is proposed. There are two main requirements for digital image watermarking: imperceptibility and robustness. Imperceptibility is measured by Peak Signal to Noise Ratio and robustness is obtained by correlation between original and extracted watermark image. In this algorithm an image and watermark is first sliced into its bit planes using …
Published in International Journal of Digital Communication and Analog Signals · Vol. 7, Issue 2, 2021 · pp. 31–40 Read article
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Performance Assessment of SCADA based Wind Turbine: Condition Monitoring Approaches
Abstract: This paper is a Review paper .Condition monitoring is nothing but health assessment of equipment. Like human being, the equipments also need a doctor for periodic check of health in order to keep their health in good condition . Diagnostic is a term with regard to identify disease of human being. The same term is used in industry with respect to find any disorder in any equipment .Overhauling and retrofitting …
Published in International Journal of Electrical Power System and Technology · Vol. 1, Issue 2, 2015 · pp. 1–9 Read article
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Power quality Enhancement & Mitigating Neutral current in 3P4W Distribution System with DSTATCOM Using TIES
Abstract: Three-Phase four-wire distribution systems face severe power quality issues like poor voltage regulation, high reactive power and harmonics current burden, load unbalancing, excessive neutral current, etc.This creates excessive neutral current each of elementary and harmonic frequency and also the neutral conductor gets full. By integration section shifting into an especially low zero section sequence electric resistance electrical device with single or multiple outputs, substantial reduction of triplen, fifth and seventh …
Published in International Journal of Electrical Power System and Technology · Vol. 3, Issue 1, 2017 · pp. 1–15 Read article
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Power Quality Enhancement in 3P4W Electrical Distribution System by using DCMLI-DSTATCOM-TIES with Reliability Study
Abstract: The Quality of the output power from the utilities has become a serious concern of the trendy industries. These power quality associated issues area unit voltage sag, surge, flicker, voltage imbalance, interruptions and harmonic issues. These power quality issues might cause issues to the industries starting from haywire of kit to finish plant close up. It’s been known that power quality will be degraded each owing to utility aspect abnormalities …
Published in International Journal of Electrical Power System and Technology · Vol. 3, Issue 1, 2017 · pp. 16–33 Read article
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Modelling of Distance Relays and Impact of TCSC on the Protection of Long Distance Transmission Lines
Abstract: Power system protection is one of the most important and exciting topics, which has been attracting the attention of both academic institutions and utilities ever since the power systems came into being. For the proper operation of the power system, an effective, efficient and reliable protection scheme is desirable. The power system components, which include synchronous machines, bus bars, transformers, transmission lines, distribution systems consisting of complex as well as …
Published in International Journal of Electrical Power System and Technology · Vol. 4, Issue 1, 2018 · pp. 1–15 Read article
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THD Comparison of 5, 7, 9, 11, 13, 15 and 17 Level Cascaded H-Bridge Multilevel Inverters
Abstract: In this paper, we simply compare the total harmonic distortion (THD) of different levels of cascaded H-bridge multilevel inverter. The major drawback of any inverter is THD. In this paper, comparison of THD is carried out for 5, 7, 9, 11, 13, 15 and 17 level inverters using MATLAB Simulink. In this paper, we use level-shifted multicarrier modulation, and also we show how THD is reduced as we increase the …
Published in International Journal of Electrical Power System and Technology · Vol. 4, Issue 2, 2018 · pp. 39–68 Read article
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A Critical Review of Harmonics and Mitigation Techniques in Power Systems
Abstract: The application of nonlinear loads in electrical power systems has increased significantly in recent years. These include variable speed drives (VSDs), uninterruptible power supplies (UPS), industrial rectifiers, welding machines, fluorescent lighting systems (Electronic ballast), computers, electronic appliances and other equipment with switched mode power supplies (SMPS) all of which have nonlinear voltage-current characteristics and produce harmonic distortions on the power system. Power system reliability and normal operation of electrical equipment …
Published in International Journal of Electrical Power System and Technology · Vol. 5, Issue 1, 2019 · pp. 1–15 Read article
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Analysis of Buck-Boost DC-DC converter Controlled SPRS using PWMVSI with Voltage and Current Control Techniques
Abstract: Slip power recovery scheme (SPRS) employing semiconductor technology has a considerable role in the progress of variable speed slip ring induction motor drive (SRIMD). SPRS utilizing the various configurations of pulse width modulated (PWM) inverters are current source inverters, voltage source inverters (VSI) with voltage and current control techniques, while the choppers are buck, boost, and buck-boost configurations. The PWMVSI with chopper controller allows the reactive power and speed control …
Published in International Journal of Electrical Power System and Technology · Vol. 8, Issue 1, 2022 · pp. 8–22 Read article
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Design and Fabrication of Shock Absorber for Electric Power Generation Using Rack & Pinion
Abstract: A variation automotive suspension system called a regenerative shock absorber uses endless power, like electricity, to transform parasite discontinuous mechanical power and vibration. In a simple shock absorber, excess potential is simply released as heat. In our research, we make use of an alternator, rack and pinion system, and suspension system. A spring being strained as the shock absorber effect develops. Because of rack is meshing with the axle and …
Published in International Journal of Electrical Power System and Technology · Vol. 8, Issue 1, 2022 · pp. 57–61 Read article