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18 articles for “power fraction”
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Optimization of a Hybrid Core Photonic Crystal Fiber for THz Applications
Abstract: Despite several real-life applications, the development of low-loss terahertz waveguide is still a challenge for long-distance applications due to its low confinement and high propagation loss. In this paper, an octagonal waveguide structure has been optimized for minimum propagation loss in the THz frequency band. The optimized structure has a core diameter of 300 um with an operating frequency of 1.1 THz. From the optimized structure, we found optimized power …
Published in Trends in Opto-electro & Optical Communication · Vol. 9, Issue 2, 2019 · pp. 18–24 Read article
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Experimental Investigation of Dilution Control Using Advanced Gas Metal Arc Welding Process
Abstract: This work investigates the amount of reduction in dilution by using Advanced Gas Metal Arc Welding (AGMAW) process. Dilution is the ratio of area of the base metal melted to the total area of weld bead measured across a given weld bead cross section. Dilution is one of the most important factors governing the success of any surfacing operation and is expressed in percentage. The AGMAW is a self-coined word …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 1, Issue 3, 2014 · pp. 1–7 Read article
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The Emergence of REM Detection Algorithm
Abstract: The objective is to use these EEG features for developing a simple algorithm capable ofdetecting REM stage epochs. Both these objectives ultimately aid the development of a sleepstaging algorithm that could be used as part of a truly wearable sleep system. Spectral edgefrequency (SEF) is the frequency below which a certain fraction of the signal powerKeywords: EEG, EEG channel, REM, Spectral edge frequency, SEFd, signal
Published in Trends in Electrical Engineering · Vol. 10, Issue 1, 2020 · pp. 43–49 Read article
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PSO Based Design and Analysis of Hybrid Optimization Technique using DC-DC converter with MPPT Technique
Abstract: The power voltage trademark curve of photovoltaic (PV) exhibits has several tops under fractional circumstances; The PV model worked at most extreme power gives more effectiveness. With the goal that the MPPT is used. The current Greatest Limit Point Following (MPPT) control strategies might neglect to work. However, the particle swarm optimization (PA) algorithm is more suitable for solving many serious optimization problems. Then this paper proposes a new algorithm …
Published in Journal of Power Electronics and Power Systems · Vol. 12, Issue 3, 2022 · pp. 9–18 Read article
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Assembly Process and Performance of A Micro Steam Power Plant
Abstract: Energy is an indispensable component of modern society, driving everything from industrial processes to household appliances, among the various sources of energy, steam power, a form of heat energy has played a pivotal role in the development of human civilization, paving the way for the Industrial Revolution and subsequent technological advancements. This study focused on the assembly and performance evaluation of a 5 kW steam power plant. The components of …
Published in International Journal of Industrial and Product Design Engineering · Vol. 2, Issue 2, 2024 · pp. 38–48 Read article
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Thermal Management of Different Composites Materials Using a Convergent and Straight Vortex Tube
Abstract: The present study focuses on an in-depth and meticulous exploration into the intricate realm of thermal management in three distinct yet widely utilized composite materials—namely, Liquid Crystal Polymer (LCP) Composites, Glass Fiber Reinforced Polymers (GFRPs), and Aramid Fiber Composites (Kevlar). This investigation employs an innovative counter-flow vortex tube system, meticulously analyzing and comparing the thermal efficiency of these materials under different intake configurations. Specifically, two distinct geometrical intake designs—a straight …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 252–266 Read article
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Fuel Cell Technologies for Automotive Applications
Abstract: About 175 years have passed since the invention of the Fuel Cell by Schoenbein und Grove, however, fuel cell-based automobiles have received increased attention in the last few years due to growing public concern over urban air pollution and consequent environmental problems. Direct combustion of fuel for transportation accounts for over half of greenhouse gas emissions and a significant fraction of air pollutant emissions. Fuel cell power systems for automotive …
Published in Journal of Power Electronics and Power Systems · Vol. 12, Issue 1, 2022 · pp. 1–15 Read article
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Neural Network Based Fractional Order PID Controller for Harmonic Mitigation of Induction Motor Drive System
Abstract: Torque produced in IM (induction Motor) is collected fundamental torque, however, due to core saturation, air gap irregularity, and winding distribution; stator and rotor slotting harmonics torque are produced. This reduces the quality of the power system, life span, and performance of the motor and the controller device. In this paper, a neural network, based fractional order proportional integral derivative (NNFOPID) controller is designed to compensate the harmonics of the …
Published in International Journal of Electrical Power and Machine Systems · Vol. 1, Issue 1, 2023 · pp. 23–41 Read article
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Performance Improvement of DFIG using Fractional Order PI Controller
Abstract: Abstract: In this paper integer order and fractional order PI controller is designed to enhance the performance of the DFIG used in wind power plants. In DFIG, pitch angle control at high wind speed certainly experiences some issues in terms of performance. In this regard, the pitch angle is controlled by increasing the wind speed above the middle speed (12 m/s) to limit the DFIG active power and rotor speed. …
Published in Journal of Microcontroller Engineering and Applications · Vol. 6, Issue 1, 2019 · pp. 6–11 Read article
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A Simulation Model to Predict the Performance of Ethanol- Gasoline Blend (E15) in a Spark Ignition Engine
Abstract: Usage of biofuels like bio-ethanol as a fuel in IC Engines is becoming prominent day by day due to their positive characteristics like biodegradability, nonpolluting, renewability, homegrown etc. Conducting experiments on real engine to establish the suitability of biofuels to IC Engines is very time consuming and expensive. Computer based simulation helps in addressing these problems. In this work an attempt is made to simulate performance and emission of SI …
Published in Journal of Industrial Safety Engineering · Vol. 7, Issue 3, 2020 · pp. 13–22 Read article
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Analysis of VLSI Circuits Designed with Single and Dual Channel Strained Silicon MOSFETs in Nanoregime
Abstract: In this paper, performance of the VLSI circuits designed with strained silicon MOSFETs is analysed andcompared with bulk MOSFET. Emphasis is being given on the evaluation of speed, power and noisecharacteristics. An inverter circuit designed with single channel and dual channel biaxial strained MOSFETsof 40 nm channel length and 0.3 germanium mole-fraction is being taken to evaluate the performance throughsimulation. The device design and circuit simulation is done in Sentaurus …
Published in Journal of VLSI Design Tools and Technology · Vol. 1, Issue 1-2-3, 2011 · pp. 15–20 Read article
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Maximum Power Point Tracking for Solar PV System
Abstract: There is an ever increasing demand for energy in today's world. The photovoltaic (PV) systems are the suitable options for satisfying an ever increasing need for energy and thus are being used widely around the globe. Some special methods are required for extracting the maximum available power out of PV systems because they are nonlinear in nature. The nonlinear characteristic of the IV curve of PV module has a unique …
Published in Journal of Electronic Design Technology · Vol. 7, Issue 1, 2016 · pp. 14–21 Read article
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Stress Analysis of Two-Dimensional Functionally Graded Thick Rotating Disks by Element Based Material Grading
Abstract: The present study reports the stress and deformation analysis of thick rotating disks made of two-dimensional functionally graded materials (FGMs). The analysis is carried out using element based gradation of material properties in radial and axial direction over the discretized domain. Material properties are distributed according to power law distribution and the governing equations are derived using principle of stationary total potential (PSTP). The resulting deformation and stresses are evaluated …
Published in Journal of Experimental & Applied Mechanics · Vol. 8, Issue 1, 2017 · pp. 28–36 Read article
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Influence of Polypropylene fibres in mechanical properties of fly ash concrete
Abstract: The abundant production of fly ash from coal-based thermal power plants as waste products becoming the problem for their disposal and it is also hazardous to the environment. The inclusion of fly ash in concrete reduces environmental pollution and improves the workability and durability properties of concrete. The present work has been carried out to find mechanical properties such as compressive, split tensile and flexural strength polypropylene fly ash-based concrete …
Published in Journal of Polymer & Composites · Vol. 7, Issue 1, 2019 · pp. 54–64 Read article
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Mannan-Rich Fractions in Poultry Nutrition: A Sustainable and Defensive Strategy against Antimicrobial Resistance
Abstract: Antimicrobial resistance (AMR) has evolved to be a significant global threat, menacing worldwide health and food security. Its proliferation in poultry farming has spurred the search for sustainable, non-antibiotic alternatives. One promising alternative is Mannan-Rich Fractions (MRFs), which is derived from Saccharomyces cerevisiae. These bioactive compounds not only support poultry health but also aid in suppressing pathogenic bacteria without contributing to resistance. This review brings together current studies highlighting how …
Published in Recent Trends in Infectious Diseases · Vol. 3, Issue 2, 2026 · pp. 1–16 Read article
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Comparison of Models of Machine Learning and Hyperparameter Optimization Methods on Various Datasets
Abstract: The most likely phase in achieving powerful and robust machine learning models is probably the hyperparameter tuning step. The traditional exhaustive methods of search (grid search and others) ensure that the search space is covered, but are computationally inexpensive; random search is less expensive and can still miss good regions; and lastly, the modern model-based and population-based methods (Bayesian optimization, tree-structured Parzen estimator (TPE), genetic algorithms) are thought to provide …
Published in Recent Trends in Programming languages · Vol. 13, Issue 1, 2026 · pp. 35–42 Read article
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Fabrication and characterization of Tensile properties ofaluminium 5083/silicon carbide/fly ash composites for advanced engineering applications
Abstract: The present work includes the fabrication of hybrid Metal Matrix Composite materials by consolidating the attractive traits of Metals, Ceramics and byproducts of combustion in power plants. More often than not, when no less than two reinforcements are introduced into the matrix phase, it is known as a hybrid composite and current research focuses on fabrication and characterization of composite materials. Aluminum Metal Matrix Composites with Silicon carbide reinforcements are …
Published in Journal of Polymer & Composites · Vol. 6, Issue 2, 2018 · pp. 6–9 Read article
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The Evolution and Impact of Numbers: From Ancient Tallies to Quantum Computing: Review Article on Numbers
Abstract: Numbers are among the most fundamental constructs in human civilization, serving as the backbone of mathematics, science, technology, and virtually every aspect of daily life. They represent not only quantities and measures but also relationships, structures, and patterns that underpin the fabric of human understanding. From the earliest tallies etched on bones by prehistoric humans to the sophisticated numerical systems embedded in today’s artificial intelligence and quantum computing, the evolution …
Published in Research & Reviews: Discrete Mathematical Structures · Vol. 12, Issue 3, 2025 · pp. 15–19 Read article