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1109 articles for “loss”
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PSO-DFFP Technique Used for Optimal Network Reconfiguration with Dispersed Generation
Abstract: Dispersed Generation and Network Reconfiguration have been generally engaged to maintain voltage level with permissible limit and decrease the energy losses in the Distribution Systems. In this article, a Partial Swarm Optimization with Distinctive Feed Forward Propagation (PSO-DFFP) controller is developed to minimize the power losses in Dispersed Generation and network reconfiguration. Different scenarios are used to analyze the performance of developed method. The designed and developed method is effectively …
Published in Journal of Control & Instrumentation · Vol. 13, Issue 2, 2022 · pp. 1–8 Read article
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Machine Learning Classification of Normal Versus Age-Related Macular Degeneration OCT Images
Abstract: The macula is a small area of the retina which is especially very important for good eyesight. The age related macular degeneration (AMD) is a type of visual impairment that can cause central vision blur or even loss of visionblindness or even loss of eyesight. AMD was a dangerous and progressing chronic disease which affects people over the age of 60. One of the most common symptoms of this condition …
Published in Journal of Control & Instrumentation · Vol. 13, Issue 3, 2022 · pp. 1–8 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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Injection of Air Bubbles and its Effects into A Shell and Coiled Heat Exchanger: A Review
Abstract: The purpose of this research is to investigate the effects of air bubble injection on the performance of a horizontal helical shell and coiled tube heat exchanger in an experimental setting. The effects of air bubble injection with varied air flow rates on the number of thermal units (NTU), exergy loss, and efficacy are examined. In present review, a shell and snaked tube heat exchanger has been numerically considered. The …
Published in Journal of Experimental & Applied Mechanics · Vol. 12, Issue 3, 2021 · pp. 40–47 Read article
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Optimum Circumscribing Circle Division Method for Getting Maximum Fill Factor in Transformer Core
Abstract: As far as the optimum design of transformer is concerned, researchers generally concentrate on minimizing cost, no load and load losses etc. by choosing K-factor, Flux density, Current density etc. as design variables. But, the design of core has remained an unexplored area. Transformer manufacturing industry uses traditional technique to find out the core design dimensions. However, in that method, the fill factor for the desired number of steps is …
Published in Journal of Electronic Design Technology · Vol. 6, Issue 2, 2015 · pp. 13–17 Read article
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Design of a Microstrip Patch Antenna with an Array of Circular SRR Using Left-Handed Metamaterial
Abstract: In this paper, the design of a patch antenna with a metamaterial composed of circular SRR is proposed. The proposed antenna design is fabricated on FR4 substrate and the experimental results obtained are in good agreement with the simulated results. By using the circular SRR structure the return loss of the conventional patch antenna has been improved from -11.5dB to -18.5dB. influence of metamaterial designed on another layer characteristics of …
Published in Journal of Electronic Design Technology · Vol. 3, Issue 1-3, 2012 · pp. 24–28 Read article
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Microstrip Planar Broadband Yagi-Uda Antenna for X-Band Communication
Abstract: In this paper, a planar Yagi-Uda antenna based on classic Yagi-Uda dipole antenna is accessible which is very useful for microwave wireless applications. This antenna provides relatively high gain and more directive radiation pattern at X frequency band with proper impedance matching. This antenna has been developed at supporting dielectric constant of 4.4, supported substrate thickness of 1.6 mm and loss tangent of 0.02. The proposed antenna is completely compatible …
Published in Journal of Electronic Design Technology · Vol. 3, Issue 1-3, 2012 · pp. 60–63 Read article
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Slope stability and factor of safety analysis on different region of soil by using geo studio slope/w software
Abstract: The one of the main trouble in the industry of construction is on account of topography nature and the weather conditions is Slope stability . Excavations, hill roads, railway lines, embankments, earth dams, open-cut mines, reservoirs and coastal slope stability these type of applications can come under the consideration of slope engineering. One of the frequent disaster is Slope failure which can generate great loss in property and life. The …
Published in Journal of Geotechnical Engineering · Vol. 7, Issue 3, 2020 · pp. 13–23 Read article
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Assessment of Acoustic Noise Generated from Machines in a Mechanical Workshop Using 1-Octave Band Frequency Analysis
Abstract: Acoustic noise is one of the prominent occupational health hazards, particularly in manufacturing and process industries. Prolonged exposure to loud noise can cause noise induced hearing loss of the exposed personnel. Limiting the exposure to noise intensity within its permissible exposure limit is adopted as one of the administrative control measures to reduce the risk of hearing loss. However, frequency specific assessment of occupational noise exposure is limited. Here, we …
Published in Journal of Industrial Safety Engineering · Vol. 8, Issue 1, 2021 · pp. 10–14 Read article
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A Watch E-cut shape Textile Antenna for WB Application
Abstract: AbstractIn this article, a Watch E-cut shape Microstrip textile antenna has been simulated under CST Software using bending material i.e. Jeans. The dielectric constant of Jeans material is 1.7. For antenna to be wearable Jeans substrate is used. The return loss of Watch E-cut shaped antenna is -54 dB at 6.3 GHz resonant frequency. It covers the bandwidth from 5 GHz to 7 GHz. In this paper simulated results like …
Published in Journal of Microwave Engineering and Technologies · Vol. 5, Issue 1, 2018 · pp. 29–32 Read article
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Two Parabolic Shape Microstrip Patch Antenna for Single Band Application
Abstract: AbstractIn this article, a two parabolic shape Microstrip textile antenna has been simulated under CST Software using bending material i.e. Jeans. The dielectric constant of Jeans material is 1.7. For antenna to be wearable, Jeans substrate is used. The return loss of Two Parabolic shaped patch antenna is –43 dB at 7.618 GHz resonant frequency. It covers the bandwidth from 5.386 to 8.971 GHz. In this paper, simulated results like …
Published in Journal of Microwave Engineering and Technologies · Vol. 5, Issue 1, 2018 · pp. 33–36 Read article
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Design of a Multiband Antenna with Rectangular and Circular Slots for 5G Mobile Technology
Abstract: AbstractThis paper presents a microstrip patch antenna for 5G mobile communication. Requests for mobile communication arise because of rapid growth in mobile users. So, users need more features like high data rate, good communication and reduced traffic on their mobile phones. These requirements can be met using 5G technology. 5G technology offers very high bandwidth, reduced latency, broadband spectrum, improved QoS and a better capacity. 5G operates from 24 GHz …
Published in Journal of Microwave Engineering and Technologies · Vol. 7, Issue 2, 2020 · pp. 30–34 Read article
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A CPW Fed Inverted E-Shape Microstrip Patch Antenna for Multi Band Applications
Abstract: In this paper a CPW fed multi band monopole antenna with inverted E-shape micro strip patch is presented for radar/satellite applications. Ansys soft HFSS simulator is used to simulate the antenna in this paper. The proposed antenna consists of inverted E shape patch including finite ground CPW feeding. The antenna is fabricated on 1.5 mm FR4 substrate which has dielectric constant of 4.4 and loss tangent of 0.02. The operating …
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 3, 2015 · pp. 26–35 Read article
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A Compact Design of Dual Band Micro Strip Antenna for WLAN/WiMax Applications
Abstract: In this paper compact dual wide band micro strip antenna has been designed with line feed technique. The return loss bandwidth achieved is 12.34% (1.398–1.582) GHz and 21.56% (2.395–2.974) GHz with a maximum return loss –44.89 dB at resonant frequency 2.656 GHz by using Zeland IE3D software. The fabricated line feed patch antenna is tested and measured by using spectrum analyzer.
Published in Journal of Microwave Engineering and Technologies · Vol. 1, Issue 3, 2014 · pp. 1–6 Read article
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Effect of Chemical Treatment of Coir Dust on the Dielectric Behavior of Bio-waste Reinforced Polymer Composites
Abstract: The present work is focused on analyzing the effect of the chemical treatment of coir dust fibers on the dielectric properties of epoxy polymer matrix composites. Coir dust is a spongy, peat-like residue obtained from the processing of coconut husk for coir fiber .The coir dust was washed and sun dried. The dried coir dust was treated with chemicals such as HCl, CH3COOH, KOH and NaOH. An untreated and treated …
Published in Journal of Materials & Metallurgical Engineering · Vol. 2, Issue 1-3, 2012 · pp. 84–96 Read article
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Optimization of dry sliding wear behaviour of AA6061 (as cast) and AA6061 (HT) aluminium alloy using design of experiment approach
Abstract: The dry sliding wear behaviour of AA6061 (as cast) and AA6061 (HT) aluminium alloy has been optimized using Taguchi Orthogonal array design. Experiments were conducted to study the influence of various parameters like, load(N), sliding speed(m/sec) and sliding distance on the dry sliding wear behaviour of both AA6061(as cast) and AA6061(HT) aluminium alloy using L9 orthogonal array design. The experiments were carried out to determine the significant controlling parameter affecting …
Published in Journal of Materials & Metallurgical Engineering · Vol. 9, Issue 2, 2019 · pp. 1–6 Read article
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Comparison of Central Inverter and String Inverter for Solar Power Plant: Case Study in Vietnam
Abstract: AbstractSolar power technology is developing rapidly in Vietnam and investors are interested in developing the solar power plant. Comparison of the choice of grid-tie inverter technology between central inverter and string inverter can affect the change of investment cost, operation and maintenance costs, and operation efficiency of solar power plants in the real condition. However, most of solar power plants in Vietnam are currently in the design stage, so experience …
Published in Journal of Nuclear Engineering & Technology · Vol. 9, Issue 3, 2019 · pp. 11–23 Read article
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Case Study on Determination of Thermal Efficiency of Industrial Furnace by Direct & Indirect Method
Abstract: Abstract:Since few years there has been great demand for energy Audit as energy as become one of the most important factor for any industry. There has been constant efforts to minimize energy losses and energy audits are proper way to manage energy consumption of any industry. Energy Audit plays an important role as energy wastage is major issue in industries (energy spending accounts for ~ 10% of the average manufacturer's …
Published in Journal of Nuclear Engineering & Technology · Vol. 10, Issue 2, 2020 · pp. 19–25 Read article
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Modelling and Simulation of Urban Smart Micro Grid Operation
Abstract: The project is aimed at the development of a new protocol that enhances the operation of urban micro grid operation. The new protocol improves the capacity of management as well as the energy efficiency of the smart grid as an entire system. The modelling considers the interconnectivity between sources of energy and consumption centers, the daily hourly power generation by the different sources, and the hourly energy demand profile. The …
Published in Journal of Nuclear Engineering & Technology · Vol. 11, Issue 3, 2021 · pp. 5–28 Read article
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Dielectric Responses of Hybrid Polymer Matrix Composites at 2–3 GHz Microwave Frequencies
Abstract: AbstractMeasurement of dielectric properties of polymeric materials in the 2–3 GHz frequency region is very important for strategic applications such as communication electronics, rapid prototyping, and radiation assisted heating. As per international standards for industrial, scientific and medical applications (ISM) 0.9, 2.45 and 5.8 GHz microwaves can be used both for heating and communication purposes, of this 2.45 GHz is most widely used frequency, hence it is important to characterize …
Published in Journal of Polymer & Composites · Vol. 3, Issue 1, 2015 · pp. 1–11 Read article