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1756 articles for “improvement”
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Next-generation Monitoring: Arduino-based Networking Approach for Underground Cable Fault Detection
Abstract: This study presents a novel approach that makes use of networking technology and Arduino microcontrollers to identify defects in subterranean cables. For electricity distribution networks to continue to be dependable and safe, defects in subterranean cables must be accurately located and detected. An Arduino-based system to concurrently identify defects and determine their lengths in subterranean cables. Through the integration of sensors that are attached to Arduino boards with a networked …
Published in International Journal of Broadband Cellular Communication · Vol. 9, Issue 2, 2023 · pp. 11–17 Read article
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Spectral Analysis of Heart Rate Variability Signals using Stockwell-Transform
Abstract: This paper introduces the use of Stockwell transform (ST) for spectral analysis of heart rate variability (HRV) signals in time-frequency domain. The ST is depicted numerically and compared with well-liked method of wavelet transform known as continuous Morlet wavelet transform (CMWT). The results of this study show that the normalized mean power and total normalized power in VLF (0.004–0.04 Hz), LF (0.04–0.15 Hz) and HF (0.15–0.4 Hz) were improved compared …
Published in International Journal of Digital Communication and Analog Signals · Vol. 1, Issue 2, 2015 · pp. 9–19 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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2D Interpolation technique for Channel Estimation in OFDM Systems
Abstract: The use of interpolation technique with low estimation error is imperative for estimating the channel impulse response at data subcarriers for pilot assisted channel estimation techniques in the Orthogonal Frequency Division Multiplexing (OFDM) systems. In this paper, a novel interpolation technique based on 2 d interpolation is presented. The proposed interpolation technique is based on minimizing the interpolation error and channel noise inherent in Least Square (LS) estimation. A comparative …
Published in International Journal of Digital Communication and Analog Signals · Vol. 3, Issue 1, 2017 · pp. 27–34 Read article
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FIBER BRAGG GRATING- For optimal performance in optical systems
Abstract: In this paper FSO link is analyzed for 650nm wavelength operation. Simulation results provide maximal link range of around 2540 meters using visible light red spectrum. The bit rate obtained for optimized link is 10Gbps. The performance of proposed link can also be improved for sustainability of communication channel in various weather conditions and is evaluated on the basic of parameter like BER, Q factor and eye diagram. For θdiv …
Published in International Journal of Digital Communication and Analog Signals · Vol. 3, Issue 1, 2017 · pp. 20–26 Read article
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Efficient Energy Management in Wireless Sensor Network
Abstract: This paper studies the impact of node heterogeneity of wireless sensor networks that are hierarchically clustered in terms of energy. Some nodes, in this network become cluster head and aggregate the data of fellow clusters and then transmit it to the sink. It is expected that a level of the number of inhabitants in sensor hubs is outfitted with extra vitality assets this is a wellspring of heterogeneity which may …
Published in International Journal of Digital Communication and Analog Signals · Vol. 4, Issue 2, 2018 · pp. 17–23 Read article
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PERFORMANCE EVALUATION COMPARISON OF LMS AND NLMS ALGORITHM FOR AEC IN SPEECH PROCESSING
Abstract: ABSTRACTAn acoustic echo cancellation is a technique used to decrease the acoustic noise in corrupted speech signal. Adaptive filter is using to cancel the acoustic echoes. For better conversation in telecommunication application to achieve the control of acoustic echoes is important and for the proposed acoustic canceller echo algorithm is used to reduce unwanted noise. There is a requirement for more than thousands taps in acoustic echo path so this …
Published in International Journal of Digital Communication and Analog Signals · Vol. 5, Issue 2, 2019 · pp. 9–19 Read article
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TCP Security Action Prediction Algorithm based on Machine Learning: A Review
Abstract: The growing range of applications available on the Internet and continuous technological improvements have led to an increase in network security incidents and cyber-attacks. Consequently, computer network security is becoming more and more important. Network security can be allowed or prohibited by a TCP firewall; a device used for computer network security. When utilising classic firewalls, network managers must periodically choose which packets to admit and prohibit to keep computer …
Published in International Journal of Digital Communication and Analog Signals · Vol. 9, Issue 1, 2023 · pp. 21–26 Read article
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Development of SpendWise Website: A Website to Tracks your Expenses
Abstract: The SpendWise platform has been developed to aid individuals in maintaining an electronic record of their monthly expenditures. The software provides users with the capability to monitor their monthly expenditures and analyze their spending patterns based on several categories. By utilizing this software, individuals could monitor and record their monthly expenditures. The application facilitates adherence to budgetary constraints by offering consumers a comprehensive overview of their expenditures. Diagrams were used …
Published in International Journal of Digital Communication and Analog Signals · Vol. 9, Issue 2, 2023 · pp. 7–13 Read article
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Case Study Of Bus System Under Three-Phase PWM Cycloconverter With MPPT Feedback Control
Abstract: In this paper, we examine a bus system as a load to extract maximum obtainable power on it from three phase PWM cycloconverter module. We also use the concept of Maximum Power Point Tracking (MPPT) control through which the efficiency can be improved. The main objective of this case study is to observe the behavior of given bus system when it is applied as a load in MPPT controlled three …
Published in International Journal of Electrical Power System and Technology · Vol. 2, Issue 1, 2016 · pp. 32–36 Read article
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Application of Fuzzy Controller in Power System and Control System -A Review
Abstract: In today's world there is a rapid increase and advancement in new and innovative technology, fuzzy logic is a practical approach of mathematics into the Logic of Boolean. The practical application of it can be easily seen in the field of engineering and science. In this paper we discussed and review about different applications of fuzzy logic controllers in the field of power system, power electronics and control system. Keywords: …
Published in International Journal of Electrical Power System and Technology · Vol. 2, Issue 1, 2016 · pp. 6–11 Read article
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A Review on Control Methods for Micro-grid based Distributed Generation System
Abstract: To counter the growing demand for energy, improvement in integration of distributed micro-grid based energy is the most promising problem in power system in the near future. The implementation of micro-grid systems offers significant advantages to both power suppliers and end customers. The current emphasis is on a comprehensive review of the control strategies and issues related to micro-grid and various droop control and strategy mode operation. This paper presents …
Published in International Journal of Electrical Power System and Technology · Vol. 2, Issue 2, 2016 · pp. 20–26 Read article
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Hybrid System Modeling and Efficient Enhancement in Smart Village
Abstract: A smart village discerns about its citizens, available resources, schemes and applicable services. It knows what it needs and when it needs. Smart village initiative focuses on improved resource-use efficiency, empowered local self-governance, access to assured basic amenities and responsible individual and community behavior to build a vibrant and happy society. The economic part of the model calculates the fuel consumed, the kilo watt hours obtained per gallon of fuel …
Published in International Journal of Electrical Power System and Technology · Vol. 3, Issue 2, 2017 · pp. 23–27 Read article
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Comparative Analysis of DC–DC Converter for Application in Energy Systems Based on Renewable Energy Resources
Abstract: This paper is a result of comparative study for seeking the better application of DC–DC converters in renewable energy systems when a transformer is employed in it. It is seen experimentally that by employing transformer with the converter, its output can be made ripple free to a great extent and the efficiency of the system is improved. It was also seen that, by using high-frequency switching devices like MOSFETs and …
Published in International Journal of Electrical Power System and Technology · Vol. 4, Issue 1, 2018 · pp. 26–31 Read article
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Intelligent Smart Battery-Based Storage for Wind Generator and Photovoltaic Systems
Abstract: In this paper, an intelligent savvy battery-based storage (BBS) system for wind generator (WG) and photovoltaic (PV) frameworks has been presented. The BBS is made out of an asymmetric cascaded H-bridge multilevel inverter (ACMI) with staircase regulation. The structure is parallel to the WG and PV frameworks, enabling the ACMI to have a decrease in power misfortunes contrasted with the typical solution for capacity associated at the DC connection of …
Published in International Journal of Electrical Power System and Technology · Vol. 4, Issue 2, 2018 · pp. 12–27 Read article
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Design and Testing of Transformer Protection System in Substation
Abstract: This study proposes a methodology and guidelines for distribution engineers to show that by testing and auditing of DTs, a generalized computer program is used to evaluate any given DTs system. This results in improving the stability as well as energy handling capacity of the system at minimum cost. A distribution network is selected for rehabilitation on the basis of certain planning criteria such as voltage drop, power loss equipment …
Published in International Journal of Electrical Power System and Technology · Vol. 5, Issue 1, 2019 · pp. 17–23 Read article
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IoT Based Solar Powered System for Smart Field Irrigation with Real Time Surveillance for Smart Agriculture in Bangladesh
Abstract: Agriculture is the essential source of livelihood for people in Bangladesh. It plays major part in economy of the nation. In Bangladesh about 75% of population depends upon agriculture and one third of the country’s income comes from agriculture. Issues concerning agriculture have been continuously ruining the improvement of the nation. But at present due to movement of individuals from countryside to urban there is obstacle in agriculture. On the …
Published in International Journal of Electrical Power System and Technology · Vol. 6, Issue 2, 2020 · pp. 31–37 Read article
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Analyzing the Probable Solutions of the Effects on Electrical Grid Emerged from EV Charging
Abstract: Electric vehicles are one of the most trending issues in the power system network. Many developed countries have already set their plan to develop corresponding infrastructures to handle the forthcoming huge EV load in the power system. A study has shown that in Britain within 2050, 70% of the vehicles would be converted to electric vehicles. In Bangladesh, electric vehicles are not widely used though, but a good number of …
Published in International Journal of Electrical Power System and Technology · Vol. 6, Issue 2, 2020 · pp. 47–59 Read article
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Implementation of Forward Backward Sweep Method & Loss Minimization Using Local Search Method in Radial Distribution Power Systems
Abstract: Interconnected power systems face several challenges out of which supply voltage fluctuations and line overload capacity have become crucial and challenging problems for engineers. The problem relating with the enhancement of the voltage profile and reduction in power losses in electrical systems is a very important task. This study work, is for a solution with respect to the problems occurred in doing load flow analysis in a radial distribution system, …
Published in International Journal of Electrical Power System and Technology · Vol. 8, Issue 2, 2022 · pp. 27–36 Read article
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MRAC Based Speed Estimation of Three DTC Techniques for Three-phase Inverter Fed IPMSM Drive
Abstract: This paper aims to study three Direct Torque Control (DTC) techniques for an Interior Permanent Magnet Synchronous Machine (IPMSM) using Model Reference Adaptive Control (MRAC). In the conventional DTC technique using a look-up table, gate signals are given to the Inverter that drives IPMSM. Since it is a 6-sector scheme and the operation of the minimum number of voltage vectors, undesired torque and flux ripples are created. Hence the problem …
Published in International Journal of Electrical Power System and Technology · Vol. 9, Issue 2, 2023 · pp. 1–15 Read article