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1927 articles for “fine/course mobile signal” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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A Review On A Compact Dual Polarized Antenna Array
Abstract: A compact dual-polarized antenna array for low-cost millimeter-wave (mm Wave) applications is proposed in this article. Utilizing a patch antenna with two orthogonal feeds positioned horizontally and vertically, a dual linear polarization antenna can be created. Two ports—a vertical port and a horizontal port—make up the suggested design. The antenna produces horizontal polarization by stimulating the horizontal port. The antenna produces vertical polarization by stimulating vertical port. With the higher …
Published in Journal of Microwave Engineering and Technologies · Vol. 9, Issue 2, 2022 · pp. 46–50 Read article
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BER Performance Analysis of MIMO With and Without Beamforming and Relaying Techniques
Abstract: The exponential surge in data traffic within contemporary communication systems has given rise to a challenge: a shortage in system information rates. To address these pressing issues, large-scale multiple-input multiple-output (MIMO) techniques have emerged as a promising solution. These advanced techniques not only enhance energy efficiency but also optimize spectrum performance, positioning themselves as a pivotal cornerstone for the forthcoming evolution of wireless communication systems. In wireless communication systems, fading …
Published in Journal of Microwave Engineering and Technologies · Vol. 10, Issue 2, 2023 · pp. 1–7 Read article
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Evaluation of Mechanical Property and Optimization of the Dry Sliding Wear Behavior of Carbon Black-Alumina-Epoxy-Glass Composite by using Design of Experiments
Abstract: The research work is mainly focused on investigating the effects of wear parameters: filler content (0%, 4% CB, 4% Al2O3,and 2% CB + 2% Al2O3), applied load (4.905, 9.810, 14.710, and 19.62 N), sliding distance (20, 30, 40, and 50 mm) by using Design of Experiments (DOEs) approach. The experimental results were analyzed using MINITAB V16 scientific graphical and data analysis software. Signal-to-Noise (S/N) ratio, analysis of variance (ANOVA) proved …
Published in Journal of Materials & Metallurgical Engineering · Vol. 4, Issue 2, 2014 · pp. 21–31 Read article
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Behaviour of NINL Blast Furnace with 100% Calibrated Lump Iron Ore
Abstract: A relation between sinter usages in burden and productivity are well established. Now a day, almost all blast furnace usages a sinter in its burden charge. The percentage of sinter in blast furnace is depending upon the availability of fines & sinter machine. But some time, due to non-availability of fine or sinter machines, or both, only calibrated iron ore lump are used as a source of iron in charge …
Published in Journal of Materials & Metallurgical Engineering · Vol. 1, Issue 1-3, 2011 · pp. 28–36 Read article
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`Lining Pains and Lance Strains-A Case Study to Competing Productivity
Abstract: A relation between sinter usages in burden and productivity are well established. Now a day, almost all blast furnace usages a sinter in its burden charge. The percentage of sinter in blast furnace is depending upon the availability of fines & sinter machine. But some time, due to non–availability of fine or sinter machines, or both, only calibrated iron ore lump are used as a source of iron in charge …
Published in Journal of Materials & Metallurgical Engineering · Vol. 1, Issue 1-3, 2011 · pp. 48–60 Read article
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Photonic Design of Two Input XOR Gate at 50 Gbps Data Rate
Abstract: This manuscript explores the photonic design of two input XOR gate at 50 Gbps data rate. In the photonic circuit, each component exercised supports for the light wave propagation. The performance of optical XOR gate is alike to their digital variant. The key constituents utilized in designing of this photonic network are 2×2 optical coupler and semiconductor optical amplifier. The proposed design is executed by the igniting the nonlinear attributes …
Published in Journal of Microelectronics and Solid State Devices · Vol. 4, Issue 2, 2017 · pp. 32–39 Read article
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Implementation of 16-Bit Qam Using Texas Instruments
Abstract: In this paper, an implementation of 16-bit QAM is performed where there is a high use of Digital Video Broadcasting Cable (DVB-C), as there is increase in the usage the bandwidth requirement for each user is mutually increasing. Due to this, there is spectral congestion caused and drastic improvements have been taken in the field of communications. QAM multilevel modulation can offer an attractive solution to current bandwidth restriction in …
Published in Journal of Microelectronics and Solid State Devices · Vol. 2, Issue 2, 2015 · pp. 14–20 Read article
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Design Simulation and Assessment of Image De-noising through Improved Median Filters Based Sub band Decomposition
Abstract: The quality of an image sequence can degrade due to a number of causes, such as noise in the recording, transmission, or scanning. Additionally to enhancing the visual appeal, filtering offers the advantage of facilitating subsequent image processing tasks like coding, interpretation, or analysis. While attempting to restore a perfect image from a faulty copy, noise reduction is a top concern. Because of this, there isn't a single strategy that …
Published in Journal of Microelectronics and Solid State Devices · Vol. 9, Issue 2, 2022 · pp. 9–21 Read article
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Design Simulation and Implementation of a Microcontroller Based Electronic Notification System for Disease Surveillance
Abstract: Infectious disease outbreaks have been a challenge in the public health sector, and developing countries like Nigeria are not an exception; the rate of such outbreaks has risen within recent years. The recent re-emerging and new infectious disease outbreaks in Nigeria, including the Ebola virus disease and other epidemic-prone diseases, necessitate a rapid public health response. As a result, it becomes necessary to improve the current system for notifying and …
Published in Journal of Microelectronics and Solid State Devices · Vol. 9, Issue 2, 2022 · pp. 42–52 Read article
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Impact of UPI on Spending Patterns of Consumers
Abstract: Modalities of digital payment Mobile holdalls have brought simplicity and speed to our lives. The inconvenience, risk, and restrictions of carrying cash can all be removed with the use of widely accessible digital payment services. Discounts, cashbacks, and waivers: Benefits and savings for users of digital payment apps and mobile wallets There are many online payment banks that provide good cash-back deals. As a result, customers cease using cash. However, …
Published in Journal of Microelectronics and Solid State Devices · Vol. 10, Issue 3, 2023 · pp. 22–30 Read article
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Three-stage Decimation Filter Design with CIC and FIR Filters: A Review
Abstract: In this paper the design of decimation filter with three stages are considered and presented using the FDA tool of MATLAB. The decimation filter reduces the sampling rate of the signal while preserving the required data. The single stage filter is very difficult to implement because it requires more coefficients which results in bad frequency response so three stages of filters are considered, and further decimation is done. In filter …
Published in Journal of Nuclear Engineering & Technology · Vol. 13, Issue 1, 2023 · pp. 30–36 Read article
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A Study on the Sintering Behavior of Al2O3/Y2O3 Doped ZrO2 Composites
Abstract: AbstractZirconia ceramics are widely used as cutting tools due to their very high hardness, excellent fracture toughness, flexural strength, and wear-resistance properties. Tetragonal zirconia exhibits better mechanical properties due to the transformation toughening of zirconia. The superior mechanical properties in zirconia are mainly due to higher density and controlled microstructure. In the present work, an attempt has been made to prepare near full-dense zirconia bodies with controlled microstructure by optimizing …
Published in Journal of Polymer & Composites · Vol. 2, Issue 1, 2023 · pp. 1–8 Read article
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Design of a Wireless Protection Scheme for Smart-Grid-Based Industrial Systems
Abstract: This paper illustrates the design of an alternative current measuring method which can be used for the protection of electrical machines, especially generators and motors, used in oil and gas industry. A comparison is made between the use of Hall effect sensors and current transformers for fault current detection. Also, different wireless communication methods that can be used in accordance with Hall effect sensors for detecting faulty conditions are discussed. …
Published in Journal of Power Electronics and Power Systems · Vol. 7, Issue 3, 2017 · pp. 30–37 Read article
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No Cost Energy Conservation Measures (NCECM) Leads to Energy Saving: A Fad or Truth
Abstract: World known fossil fuel reserve is limited and expected to last until the end of this century if we continue to use it at the present rate. In order to maintain the ever-rising energy demand, we need to reduce the demand while increasing the generation besides looking for alternative energy sources including renewable energy. Conducting the energy audit to identify No Cost Energy Conservation Measures (NCECM) and implementation of the …
Published in Journal of Power Electronics and Power Systems · Vol. 8, Issue 1, 2018 · pp. 53–59 Read article
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Wireless Annunciator Window for Substation Application with GSM Facility
Abstract: The work aim is to understand and design of wireless communication between annunciator window and circuit breaker, relay, transformers etc. located in switchyard of power substation. The wireless communication methods are more reliable, convenient, economical, and faster as compared to the actual wire communication system. In this paper, we have used a GSM system for sending wireless signal to the annunciator window. GSM system supports to transfer the information over …
Published in Journal of Power Electronics and Power Systems · Vol. 7, Issue 1, 2017 · pp. 22–27 Read article
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Simulation of Sub-synchronous Resonance (SSR), and Mitigation of SSR by Static Synchronous Series Compensator with Lead Lag Compensator
Abstract: This research work presents a narrative method of alleviating the SSR problem using a static synchronous series compensator (SSSC). This method is based on using the SSSC to inject unbalanced series quadrature voltages and unbalanced shunt reactive currents in transmission line just after clearing faults. When the sub-synchronous oscillations drive unsymmetrical phase currents, the developed electromagnetic torque will be lower than the condition when three-phase currents are symmetrical. The unsymmetrical …
Published in Journal of Power Electronics and Power Systems · Vol. 2, Issue 1, 2012 · pp. 18–23 Read article
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Design a Patch Antenna with Metamaterial for Electromagnetic Interference Sensor
Abstract: This paper proposes a design of a patch antenna by using pentagonal shaped metamaterial for Electromagnetic interference sensor. Pentagonal shaped metamaterial is used to increase bandwidth of patch antenna. Metamaterial possesses properties such as negative permittivity and negative permeability. It reduces return loss of antenna and increases the directivity. Two identical rectangular patch antennas have designed for transmitting and receiving purpose. This proposed antenna has been simulated at 2GHz frequency …
Published in Journal of Power Electronics and Power Systems · Vol. 3, Issue 1, 2013 · pp. 18–21 Read article
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Investigation of FPGA based PWM Control Technique for AC Motors
Abstract: This paper proposes a Random Frequency PWM synchronized for a three phase inverter implemented with use of Field Programmable Gate Array (FPGA) and applied to a 1-hp induction motor drive system for the reduction of harmonics and improvement of fundamental peak voltage. For providing alternating output voltage with a specific magnitude and frequency to industrial applications, three-phase inverter is preferred. The gating signals to the inverter are produced by means …
Published in Journal of Power Electronics and Power Systems · Vol. 3, Issue 2, 2013 · pp. 16–22 Read article
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Voice based Control of Appliances using LabVIEW
Abstract: A voice based control of appliances for home and office automation become increasingly important and interesting. Automation with the voice provides better time management. These also improve the quality of our lives by automating some of the electrical home appliances such as light source, A/V equipment, computer, security device, etc. In this paper a voice based control of devices using LabVIEW is implemented. User can input the control command through …
Published in Journal of Power Electronics and Power Systems · Vol. 4, Issue 1, 2014 · pp. 53–58 Read article
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Performance Evaluation of Brushless DC Motor during Sinusoidal and Trapezoidal Back-EMF Waveform
Abstract: Due to increasing popularity and wide application in the drive system BLDC motor is widely used. An undesirable signal in the brushless dc motor is a ripple in torque, which is in challenging motor control and some machine tools. This article represents the performance evolution of BLDC motor by using the sinusoidal and trapezoidal back EMF waveform for getting the efficient operation of BLDC motor drives. In sinusoidal back EMF …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 3, 2016 · pp. 14–22 Read article