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1334 articles for “Rats”
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Algorithms Used for D-STATCOM to Achieve Compensation Current Detection
Abstract: Now a day’s power electronic based equipments are used in industrial and domestic purpose. Passive filter has been used traditionally for mitigating the distortion due to harmonic current in industrial power systems. But they have many drawbacks such as resonance problem, dependency of their performance on the system impedance etc. To overcome of such problem active power filters is introduced. It has no such drawbacks like passive filter. They inject …
Published in International Journal of Analog Integrated Circuits · Vol. 3, Issue 2, 2017 · pp. 7–19 Read article
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Laser-induced Phosphorescence Photobleaching Anemometer for Microfluidic Technology Instruments
Abstract: In this article, we have established a new, non-intrusive flow velocity calculation approach focused on photobleaching of a fluorescent dye for micro-fluidic systems. The time of existence of the fluorescent dye in the laser beam depends on the flow rate which roughly relates to the time of decay of the photobleaching of the dye in the laser beam. The time of residency is inversely proportional to the speed of flow. …
Published in International Journal of Analog Integrated Circuits · Vol. 6, Issue 2, 2020 · pp. 11–20 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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Performance Analysis of MIMO-FBMC Transceivers in Multi-Path Fading Channels
Abstract: Multiple-input multiple-output (MIMO) technology has become an integral part of wireless communication systems, enabling high data rates and improved spectral efficiency. Filter bank multi-carrier (FBMC) modulation is another promising technique that offers several advantages over traditional orthogonal frequency division multiplexing (OFDM) in terms of spectral efficiency and robustness to frequency-selective fading channels. In this paper, we investigate the performance of MIMO-FBMC transceivers in multi-path fading channels. We first review the …
Published in International Journal of Broadband Cellular Communication · Vol. 8, Issue 2, 2022 · pp. 1–8 Read article
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State Wise Covid-19 Case Forecasting Based on Machine Learning by Using SEIR and Time Series Models
Abstract: Forecasting mechanisms based on machine learning have proved to be significant to anticipate in peri-operative outcomes that improve decision-making in the future. Applications where it is necessary to identify risk factors with a negative impact have used machine learning models. To solve problems with forecasting, many prediction techniques are applied. The COVID-19 virus, which is active and is currently regarded as a serious threat to humanity, is shown in this …
Published in International Journal of Broadband Cellular Communication · Vol. 9, Issue 1, 2023 · pp. 1–9 Read article
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Logarithmic Companding using Firefly Algorithm for PAPR Reduction in OFDM System
Abstract: Orthogonal Frequency Division Multiplexing (OFDM) is a digital transmission method developed to meet the increasing demand for higher data rates in communications which can be used in both wired and wireless environments. However OFDM is handicapped with a major problem of high peak-to-average power ratio (PAPR), which gives rise to non-linear distortion, inter-symbol interference and out-of-band radiation. Several PAPR reduction techniques have been devised over the last few decades in …
Published in International Journal of Digital Communication and Analog Signals · Vol. 1, Issue 1, 2015 · pp. 1–8 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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BER Analysis of Digital Modulation Schemes for OFDM System
Abstract: The growth in the field of communication and the requirement of high-speed and secured data transmission are increasing day by day. Orthogonal frequency-division multiplexing modulation technique is a new technique which supports high-speed data transmission. It is a method of signal modulation that divides a high data rate modulating stream into several slowly modulated narrowband close-spaced subcarriers, and in this way, it is less sensitive to frequency-selective fading. The present …
Published in International Journal of Digital Communication and Analog Signals · Vol. 4, Issue 1, 2018 · pp. 15–23 Read article
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Virtual Reality and Its Contribution in Mediation and Psychological Treatment
Abstract: Nowadays we are surrounded by blends of technologies, there is a rainbow of various technologies in our everyday lives. Increasingly these technologies are getting integrated to provide us with the best of abilities and services which are more efficient than in the past. Virtual Reality ear (computer generated reality) is a developing innovation that is winding up progressively common with time. Its uses for well-being and entertainment rehearses are underwhelming. …
Published in International Journal of Digital Communication and Analog Signals · Vol. 9, Issue 2, 2023 · pp. 13–21 Read article
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A Novel Buck-Boost Converter with an Enhanced Negative Output Voltage
Abstract: This paper proposes the theoretical design of a novel buck-boost converter with an enhanced negative output voltage than conventional converters. It is beneficial for applications that require a wide range of conversion ratio. The steady-state as well as power-loss analyses of the proposed converter operating in continuous conduction mode are examined. Comparison with typical negative output converters like the buck-boost converter, self-lift Luo converter and hybrid buck-boost converter is also …
Published in International Journal of Electrical Power System and Technology · Vol. 4, Issue 1, 2018 · pp. 48–60 Read article
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Creating energy system resilience through stand-alone hybrid solar PV-wind energy system - a case study in India
Abstract: A grid-independent hybrid energy system consisting of commercially available solar photovoltaic panels of 250 W peak power rating and micro wind turbines of 30–40 kW power rating has been considered for electricity production at a selected location in India as a case study. The energy system configuration that leads to lowest levelized electricity cost at that location has been identified through parametric analysis. The configuration has been found to have …
Published in International Journal of Electrical Power System and Technology · Vol. 6, Issue 2, 2020 · pp. 1–21 Read article
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Wind Power: Voltage and Power Quality Control System
Abstract: Power quality is a critical issue in a power system. The nonlinear nature of loads causes the majority of the pollution problems in the power system. Wind power, in general, does not contribute to voltage regulation in grids due to the large amount of non-linear equipment, impact, and fluctuating loads. Wind power is also frequently a source of voltage sag or swell. Power systems are frequently regarded as insufficient because …
Published in International Journal of Electrical Power System and Technology · Vol. 7, Issue 2, 2021 · pp. 21–26 Read article
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Circular Head-Shape Slotted Circularly Polarized Microstrip Antenna
Abstract: In this paper, one of the important parameter a is circular polarization. The design consists of square microstrip patch antenna using circular head-shape slot in second quadrant of the patch. Microstrip patch antenna is low profile, low cost antenna. A design of coaxial feed circular polarized, square shape microstrip antenna is presented and simulated by using CST 2010 and 4.4 relative permittivity law cost FR-4 (lossy) substrate are used. The …
Published in International Journal of Microwave Engineering and Technology · Vol. 3, Issue 1, 2017 · pp. 18–22 Read article
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Power Quality Enhancement in 3P4W Distribution system with Design of Υ/Δ and Zig/ZagTransformer Based DSTATCOM
Abstract: Abstract: - Power quality is solitary of the foremost issues within the gift epoch. With power quality tribulations utility distribution networks, industrial hundreds, sensitive hundreds etc. square measure suffered. Power quality improvement is a crucial issue in respect of accelerating application for nonlinear hundreds. This paper presents the simulation style of a Υ/Δ and Zig/Zag Transformer based mostly DSTATCOM for power quality improvement & performance of distribution system underneath linear …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 3, Issue 1, 2017 · pp. 6–17 Read article
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Study of Modeling and Simulations of Permanent Magnet Synchronous Motor
Abstract: The modeling of permanent magnet synchronous motor field-oriented control is used for the operationof the drive. The simulation includes all realistic components of the system. This enables the calculationof currents and voltages in different parts of the inverter and motor under transient and steadyconditions. The losses in different parts are calculated, facilitating the design of the inverter. Closedloop control system with a proportional integral (PI) controller in the speed loop …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 7, Issue 1, 2021 · pp. 29–37 Read article
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Optimization of Relay Selection Techniques in FSO with PSO Algorithm
Abstract: ABSTRACTFree Space Optics (FSO) is a communique technology that makes use of mild propagating in free space to transmit records among two factors. The technology is useful wherein the physical connections by using the method of fiber optic cables are impractical due to excessive prices or different concerns. It has attracted the attention of researches in the last decade due to its low cost, high data rate and security. In …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 5, Issue 2, 2019 · pp. 36–41 Read article
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Structural and Elastic Properties Calculation of CdX (X= S, Se, Te) Semiconductors from First-Principles
Abstract: First-principle calculations have been performed to calculate the structural and elastic properties of wurzite (wz) CdX(X= S, Se, Te) chalcogenides semiconductor using the plane wave pseudo-potential method within the projected augmented wave approximation (PAW),which works directly with full all electron (AE) wavefunctions and AE potentials. The values of lattice constant (a) and (c), internal parameter (u), Bulk modulus (B), and reduce pressure derivative bulk modulus ( ) using equation of …
Published in International Journal of Applied Nanotechnology · Vol. 3, Issue 2, 2017 · pp. 8–15 Read article
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Synthesis of White Light Emitting Water-soluble CdZnS Quantum Dots at Room Temperature
Abstract: Water-soluble alloyed CdZnS quantum dots (QDs) have been successfully prepared at room temperatures by reacting a mixture of Cd(CH3COO)2 and Zn(CH3COO)2 with Na2S using thiolactic acid (TLA) as a surface capping agent. The photoluminescence (PL) spectra of the alloyed QDs are determined on the basis of the Cd2+/Zn2+ molar ratio, reaction pH, intrinsic Cd2+and Zn2+reactivities toward Na2S and the concentration of capping agent. A systematic blue shift in emission wavelength …
Published in International Journal of Energetic Materials · Vol. 7, Issue 1, 2021 · pp. 32–39 Read article
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Corrosion Protection of Rebar steel in Ocean Atmosphere
Abstract: Rebar is an important engineering metal. It is used in construction of housing, bridge and other infrastructures works. It is surround with concrete for strengthen building block components. The concentration of chloride ions in ocean atmosphere is higher so it produces hostile environment for rebar steel. The lots of porosities are available on the outer surface area of concrete so chloride ions enter inside by osmosis or diffusion process. It …
Published in International Journal of Energetic Materials · Vol. 8, Issue 1, 2022 · pp. 1–11 Read article
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A Conductive Polymer Based Electrode in Asymmetric Supercapacitor
Abstract: Most applications and devices in today's smart world rely on electricity to function. In this circumstance, energy storage and energy conservation are critical practices for delivering excellent service. In terms of energy efficiency, rotational stability, and charging and discharging time, supercapacitors exceed batteries. It can withstand a lot more power than standard capacitorsand batteries. In asymmetric designs, this paper looked at how to achieve the high voltage window and high …
Published in International Journal of Energetic Materials · Vol. 8, Issue 2, 2022 · pp. 36–50 Read article