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704 articles for “transmissivity”
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Optimal Allocation of STATCOM FACTS Controller for Loss Reduction and Voltage Stability Enhancement in a Nine Bus Power System
Abstract: It is being a huge concern about the complexity and severity of recent days’ power system. The main objective of the power system concern is the flexibility and fast control characteristics of power transmission between generating station to distribution grid. So, in order to have a reliable and quality power transmission, FACTS (flexible AC transmission system) controllers are introduced. Here, a shunt type of FACTS controller such as STATCOM (Static …
Published in Journal of Control & Instrumentation · Vol. 8, Issue 3, 2017 · pp. 12–16 Read article
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Frozen Waves: Double T-Shape Patch Antenna Sensor for Precise Ice and Snow Measurement
Abstract: To design a Micro strip patch antenna with double T shaped slots at operating frequency 2.4GHz was developed for ice detection and measurement application. Detection was performed by monitoring the resonance frequency and amplitude of the transmission coefficient between the antenna sensor and a broadband receiver. The patch antenna sensor is also capable of distinguishing between ice and water, respectively when compared to the bare sensor. The antenna was also …
Published in Journal of Control & Instrumentation · Vol. 14, Issue 3, 2023 · pp. 15–20 Read article
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Implementation and Verification of Dual Port RAM for High-speed Applications
Abstract: It is important to have an appropriate medium for transmitting data among parallel running processes in multi-processor-based applications. Multi-processor systems are used to handle complex tasks that require a lot of processing power, and they rely on parallel running processes to achieve this. However, one of the major limitations of these systems is the slow transmission of data among parallel running processes. This is due to the fact that in …
Published in Journal of Electronic Design Technology · Vol. 14, Issue 2, 2023 · pp. 37–41 Read article
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UPFC based Power System
Abstract: AbstractUnified Power Flow Controller (UPFC) is one of the most versatile FACTS controller for the regulation of voltage and power flow in a transmission line, which can control power system parameters such as terminal voltage, line impedance and phase angle. Therefore it can be used not only for power flow control, but also for power system stabilizing control. Unified Power Flow Controllers are able to direct reactive and real power …
Published in Journal of Instrumentation Technology & Innovations · Vol. 8, Issue 3, 2018 · pp. 21–26 Read article
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The Electromagnetic Transients in Mixed Power Networks with Partial Undergrounding
Abstract: This paper deals with the electromagnetic transients in partially undergrounded mixed high voltage power networks. These networks can include several cable sections replacing parts of the overhead transmission lines. The analysis yields the transient voltage and current distributions along the normal and the partially undergrounded lines. Moreover, the results can indicate eventually existing localized voltage and current concentrations within the network. The study suggests an exact direct analytical distributed parameter …
Published in Journal of Power Electronics and Power Systems · Vol. 7, Issue 2, 2017 · pp. 1–13 Read article
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Development of a Soft Computing-Based Island Detection System and Performance Analysis
Abstract: There has been an overestimation of the global energy consumption in the last few years. Distributed Generators are being propelled forward by the motivation provided by the absence of suitable transmission capacity, exaggerated transmission and distribution mishaps, and the release of power marketing (DGs). It's a distributed age unit (DG slash hack expansion) and regional units linked to distribution that power the system, which has yet to have hundreds of …
Published in Journal of Semiconductor Devices and Circuits · Vol. 8, Issue 3, 2021 · pp. 1–15 Read article
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Number of Laser Pulses Influence on Optical Properties of Pulse Laser Deposited ZnS Thin Films
Abstract: In present work four samples of ZnS thin films deposited on glass substrate using pulse laser deposition method with different number of laser pulses, the effect of the number of laser pulses on the optical properties of ZnS thin films was studied. Q-Switched Nd: YAG laser with the fundamental wavelength 1064 nm, laser pulse energy of 100 mj with fixed pulse repetition rate of 2 Hz were used, and varied …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 6, Issue 1, 2019 · pp. 1–9 Read article
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BER Performance Analysis for Digital Modulation Techniques in AWGN Channel of FSO Communication System with Low Attenuation Coefficient
Abstract: BER is a potential methodology for examining digital transmission systems by providing a measurable and useful indication of system performance. If the BER rises within limit then the system performance will be obviously satisfactory. The paper represents BER performance of FSO communication system for a few number of digital modulation techniques: BPSK, QPSK, 4-QAM and 16-QAM in AWGN channel by exploiting the Matlab simulated BER versus SNR graphs. The numerical …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 1, Issue 3, 2014 · pp. 12–19 Read article
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Single Bit Low-Power High-Speed Full Adder
Abstract: This paper presents a high-speed low-power full adder cells that lead to have a reduced power-delay product (PDP). A comparison against other full-adder structure as having low PDP, in terms of speed, power consumption and area of cells is carried out. This paper contains, a hybrid 1-bit full adder design employing both complementary metal-oxide semiconductor (CMOS) and transmission gate logic styles. First implemented was the design for 1 bit then …
Published in Journal of VLSI Design Tools and Technology · Vol. 7, Issue 3, 2017 · pp. 55–60 Read article
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Single Bit Low-Power High-Speed Full Adder
Abstract: This paper presents a high-speed low-power full adder cells that lead to have a reduced power-delay product (PDP). A comparison against other full-adder structure as having low PDP, in terms of speed, power consumption and area of cells is carried out. This paper contains, a hybrid 1-bit full adder design employing both complementary metal-oxide semiconductor (CMOS) and transmission gate logic styles. First implemented was the design for 1 bit then …
Published in Journal of VLSI Design Tools and Technology · Vol. 7, Issue 2, 2017 · pp. 55–60 Read article
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Optimal Size and Location of Capacitor Bank for Reactive Power Compensation Using Genetic Algorithm
Abstract: Power system operators are always faced with the dilemma of how to reduce the transmission loss. There are many ways to attain this target. In this thesis, new method for optimal capacitor placement for transmission loss minimization is planned. Proposed methods are based on the optimal capacitor placement formulations, which allow the cost benefit analysis and multi-objective optimization consideration of reactive power support investment. For better design of proposed methods, …
Published in Journal of VLSI Design Tools and Technology · Vol. 9, Issue 2, 2019 · pp. 28–34 Read article
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A Real Time Analysis Of Wireless Power Transfer Coil Design For Electric Vehicle
Abstract: Wireless Power Transmission is a process that uses a vacuum or an atmosphere to transmit electrical energy. It is commonly used in the medical, industrial, and transportation sectors. However, its reliability and quality are often affected by the range and efficiency of the transmission. Electric Vehicles (EVs) have the potential to achieve better efficiency and lower emissions than internal combustion engines. However, their limited range makes them a major barrier …
Published in Recent Trends in Electronics Communication Systems · Vol. 9, Issue 2, 2022 · pp. 19–24 Read article
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Evaluations with RZ/NRZ Optical-CDMA Link
Abstract: AbstractThis article presents the proposed novel design for hierarchical asynchronous optical code-division multiple-access scheme; performance was investigated for numerous key parameters. With single active user, the RZ_ON_OFF ramp OCDMA scheme performance is better than other schemes over shorter reach; NRZ_OCDMA scheme is better for longer reach, depicted BER is in the range of 10-100 to 10-42 with three users and 10-28 to 10-12 with 32 active users over the randomly …
Published in Trends in Opto-electro & Optical Communication · Vol. 7, Issue 2, 2017 · pp. 12–40 Read article
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Effects of Variation of Injection Current on Characteristics of a 1550 nm Semiconductor Laser
Abstract: AbstractThis work represents the prototype of both the analytical and the simulation based study on high speed communication system particularly high speed data transmission through optical fiber using 1550 nm InGaAsP/InP laser. In recent years, Vertical Cavity Surface Emitting Lasers (VCSELs) are prerequisites for future ultrahigh data-rate systems. This paper represents an overview on high speed performance of the 1550 nm VCSEL. Using MATLAB simulation tool the characteristics of the …
Published in Trends in Opto-electro & Optical Communication · Vol. 3, Issue 2, 2013 · pp. 1–6 Read article
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A Case Study of Free Space Optic Performance Using Simulation Tools – OptSim
Abstract: ABSTRACTFree space optics (FSO) has received a great deal of attention lately both in the military and civilian information society due to its potentially high capacity, rapid deployment, portability and high security from deception and jamming. A proper understanding of optical signal propagation in different atmospheric conditions has become essential, and thus there arises the need to rationalize the effects of atmospheric channel on terrestrial FSO links. This paper studies …
Published in Trends in Opto-electro & Optical Communication · Vol. 1, Issue 1-3, 2011 · pp. 1–7 Read article
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Simulative Investigation of RoF and FSO Based Hybrid Network with Different Types of Fibers
Abstract: Free-Space Optics (FSO) is a communication network in which free space work as a channel between transceivers and uses line-of-sight technology and it uses a laser to deliver optical bandwidth association. At present, the FSO system is able for transmission of data, audio and video messages through the environment, permission for optic connectivity not having need of fiber optic cable or protecting spectrum licenses. FSO network can operate over distances …
Published in Trends in Opto-electro & Optical Communication · Vol. 9, Issue 2, 2019 · pp. 1–8 Read article
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Rectenna Design with Defect Ground Structure at 2.16 GHz
Abstract: AbstractThis paper presents the rectenna design for Wireless Power Transmission. The design would receive and convert microwave of 2.16 GHz to DC. Proposed rectenna is a combination of microstrip patch antenna, followed by stepped impedance filter and then matching circuit and rectifier circuit. A low-pass filter (LPF) at the input port of the rectifying circuit is used to suppress the high order harmonics. The IE3D software is used for the …
Published in Journal of Communication Engineering & Systems · Vol. 3, Issue 1, 2013 · pp. 16–18 Read article
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Li-Fi’s Marketplace in the Future
Abstract: In this work, we are describing our project on the Li-Fi system. The full form of Li-Fi is “light fidelity”. It is the forerunner of Wi-Fi. Li-Fi is a type of data transmission technology that will be used in the future because of its causes and benefits. Wi-Fi and Li-Fi are not similar to each other. There are many differences between them in every aspect. In terms of speed, Li-Fi …
Published in Journal of Communication Engineering & Systems · Vol. 12, Issue 3, 2022 · pp. 1–5 Read article
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Empirical Method of Designing a Coaxial Line
Abstract: AbstractThis paper is meant to give a concise and correct method to design a coaxial cable using standard design formula. Simulation is done using empirical methods designing of coaxial transmission line. The coax is designed with a cut-off frequency of 1 GHz in TEM mode. The characteristic impedance of the coax is 50Ω. The aim here is to help the reader design a correct coaxial cable at the port of …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 8, Issue 3, 2020 · pp. 33–36 Read article
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Wireless Power System: Its Challenges and Issues
Abstract: Abstract: Wireless technology is a more reliable. The purpose of this paper is mainly to reduce without human interfacing, the transmission and distribution losses. It is a two-way communication; the cost for the power will be reduce for the consumer. Thus, it reduces the cost of transmission and distribution. As in this paper, we will discuss about the methods used recently in the wireless power transmission. We can research on …
Published in Journal Of Network security · Vol. 7, Issue 3, 2019 · pp. 41–43 Read article