Search
109 articles for “HARMONICS”
-
Harmonic Elimination in Photovoltaic (PV) Systems Using Various Multilevel Inverter Topologies
Abstract: The increasing penetration of photovoltaic (PV) systems into modern power grids necessitates advanced power electronic interfaces capable of delivering high-quality electrical power with minimal harmonic distortion. Multilevel inverters (MLIs) have emerged as an effective solution due to their ability to synthesize near-sinusoidal output voltages with reduced switching losses and electromagnetic interference. This study presents a comprehensive investigation of harmonic elimination in grid-connected PV systems using 5-level, 7-level, and 11-level multilevel …
Published in Trends in Electrical Engineering · Vol. 16, Issue 1, 2025 · pp. 01–18 Read article
-
Harmonization For Medical Device Regulation In Asia: A Vital Need
Abstract: The Medical Device area is one of the most perplexing and testing business portions of the medical services industry with a close joint effort between science and design. Notwithstanding the way that Asia has 60% of the world populace giving enormous market potential, Asian medical care consumption comprises just 15% of the worldwide medical services consumption. The sped-up maturing populace and expanding pervasiveness of ongoing infection are the key drivers …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 15, Issue 1, 2024 · pp. 31–37 Read article
-
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
-
Flexural Vibration of Non-Uniform Beam on Bi-Parametric Foundation Under Harmonic Moving Load with Non-Classical Boundary Conditions
Abstract: The dynamic response to harmonically varying moving loads of non-uniform elastic beam resting on bi-parametric foundation with non-classical boundary condition, time dependent in particular is examined in this paper. Here, the beam is considered non-uniform, with the moment of inertia and the distributed mass varying continuously along the span L as functions of the position 𝑥. In order to guarantee a more stable structure and a reduce risk of resonance, …
Published in International Journal of Mechanical Dynamics and Systems Analysis · Vol. 3, Issue 2, 2025 · pp. 28–42 Read article
-
Detection and Classification of Brain Tumor from MRI And CT Images using Harmony Search Optimization and Deep Learning
Abstract: Primary brain tumor detection and classification are critical factors in ensuring effective treatment and, ultimately, improving patient well-being. This paper describes a novel method for detecting and classifying brain tumors with the help of magnetic resonance imaging (MRI) and computed tomography (CT) images. The suggested method combines harmony search optimization (HSO) and Convolution Neural Networks (CNN) based on deep learning techniques, yielding an impressive accuracy rate of 99.13% for both …
Published in Journal of Artificial Intelligence Research & Advances · Vol. 11, Issue 3, 2024 · pp. 31–49 Read article
-
Harmonizing Foam and Function: Clubhouse Design in Apartment Complexes
Abstract: The increasing demand for urban living has led to the proliferation of apartment complexes, where common spaces like clubhouses play a pivotal role in fostering community and enhancing residents' quality of life. However, many existing clubhouses fail to harmonize form (aesthetic design) and function (practical usability), resulting in spaces that are visually appealing but underutilized or, conversely, highly functional but lacking in ambiance. This research addresses the critical issue of …
Published in International Journal of Architectural Design and Planning · Vol. 2, Issue 2, 2024 · pp. 38–57 Read article
-
Harmonically Varying Moving Load on Time-Dependent Uniform Beam Resting on Pasternak Foundation
Abstract: In this paper, we investigated elastic beam whose properties does not varies with spatial coordinate but constant along the span L of the beam. The moving load considered in this work is harmonically varying moving load with non-classical boundary conditions, time dependent boundary conditions in particular. Also, considered in this work is two parameters foundation which are Winkler and Pasternak foundations. Closed form solutions in plotted form are obtained using …
Published in International Journal of Electro-Mechanics and Material Behaviour · Vol. 3, Issue 2, 2025 · pp. 38–47 Read article
-
Comparative Study of Uniform and Non-Uniform Beams Resting on Bi-Parametric Foundation Under Harmonic Load with Time Dependent Boundary Conditions
Abstract: In this study, we investigated uniform and non-uniform damped and time-dependent elastic beams resting on bi-parametric foundation subjected to harmonically varying moving load. The beam properties, including moment of inertia and mass per unit length, were assumed to be either constant or varying with position along the beam span in this study. The solution methods were based on Mindlin-Goodman method, Fourier sine transformation, weighted residual method, integral transformation, and theory …
Published in International Journal of Mechanical Dynamics and Systems Analysis · Vol. 4, Issue 1, 2026 · pp. 33–50 Read article
-
A Review on Solar Multilevel Inverter for the Production of Free Energy Due to the Structure with Long-life Feature
Abstract: Multilevel inverters play a major role in medium voltage, high power and renewable applications. It is also used in certain applications where high switching frequency, and high output voltage gain are required. The switching transient period of a MOSFET should be minimal because a high dv/dt rate could result in permanent damage to the MOSFET. The harmonics present could cause many problems and so it has to be minimized. The …
Published in Journal of Nuclear Engineering & Technology · Vol. 14, Issue 1, 2024 · pp. 13–18 Read article
-
Total-internal-reflection-based optical rotation quasi-phase-matching for efficient second-harmonic generation in Cadmium Germanium Arsenide crystal
Abstract: This study investigates a total-internal-reflection (TIR)-based optical rotation quasi-phase-matching (ORQPM) approach for second harmonic generation within a cadmium germanium arsenide crystal slab. The crystal is coated with a thin film of yttrium oxide to facilitate precise control over phase shifts between p- and s-polarized light upon reflection at the slab-film interface. By leveraging the interplay between TIR- induced optical rotation and fractional QPM effects at designated bounce points, the configuration …
Published in International Journal of Crystalline Materials · Vol. 3, Issue 1, 2026 Read article
-
Harmony Through Ayurveda: A Holistic Guide to Optimal Health Through Diet and Lifestyle
Abstract: Ayurveda is an eternal system of medicine that delineates conventional methods to treat the diseased conditions and encourage perseverance of optimal health, thus maintaining a healthy life. This objective of health maintenance can be achieved with the help of affirmative food and lifestyle alterations in harmony with the quotidian cycle and respective seasons. Ahara and vihara have pivotal role in governing the healthy state of body and mind. In the …
Published in Journal of AYUSH: Ayurveda, Yoga, Unani, Siddha and Homeopathy · Vol. 13, Issue 2, 2024 · pp. 54–60 Read article
-
Creating a More Peaceful, Harmonious, and Compassionate World Through Raj Yoga Meditation
Abstract: Mental health and inner peace are very useful and essential for everyone. They are highly treasured by most people, but few possess them. However, each one can develop them. All individuals seek contentment and wish to be happy, but happiness is very much interrelated with social, physical, and mental health. Mental health affects physical health. Downbeat psychological states, such as distress, depression, and anxiety have been found to be related …
Published in Research and Reviews : A Journal of Ayurvedic Science, Yoga and Naturopathy · Vol. 12, Issue 2, 2025 · pp. 1–4 Read article
-
Volunteering and Community Connection: Benefits of Community Volunteering to Connect People Together Through School Children and Build Harmonious Community
Abstract: Unlike traditional forms of volunteering, modern volunteering has new purposes and outcomes. It is now recognized as a legitimate way for individuals to formally participate in local affairs through community level action. In many countries, volunteers have a nationally legislated institutional structure and set of principles, and rights and responsibilities, which is collectively agreed upon to be adhered to and safeguarded by all volunteers and the organizations and programs they …
Published in International Journal of Children · Vol. 3, Issue 1, 2026 · pp. 43–51 Read article
-
Thermo-Mechanical Vibration Analysis of Simply Supported Laminated and Flat Plates Under Harmonic Loading
Abstract: This paper delves into a numerical exploration of the vibration characteristics and frequency response of two types of plates: a simply supported rectangular laminated plate and a simply supported flat plate. These plates are subjected to concentrated harmonic forces within a thermal environment. The determination of the critical buckling temperature guides the assessment of thermal load effects. Analytical formulations, incorporating first-order shear deformation theory (FSDT) to consider shear deformation and …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 1519–1530 Read article
-
Enhancing Power Quality and Harmonics Control via Integration of PV, Wind, and Battery Systems with Three-level Inverter in DC Micro grid Management
Abstract: The primary goal of this research is to develop a multi-level inverter-based energy management approach for a smart DC-micro grid. An electric micro grid is created in this project by combining photovoltaic (PV), wind, and batteries. Solar and wind power can be efficiently extracted, and the quality of power can be improved by using FOPID control for source-side converters (SSC) and load-side converters controlled by multilevel inverters. To make the …
Published in Journal of Power Electronics and Power Systems · Vol. 14, Issue 1, 2024 · pp. 18–27 Read article
-
Harmonizing Philosophies: An In-Depth Exploration of Homeopathic Case Management through the Lenses of Dr. Boenninghausen, Dr. Kent, and Dr. Boger
Abstract: This article examines the distinct yet converging philosophies of three pivotal figures in homeopathy: Dr. Boenninghausen, Dr. James Tyler Kent, and Dr. Cyrus Maxwell Boger. Each of these practitioners has significantly influenced homeopathic practice through their unique approaches to case management, symptom evaluation, and remedy selection. By analyzing a case of membranous dysmenorrhea drawn from Dr. Kent's archives, we applied methodologies from each of these pioneers, revealing how their philosophical …
Published in Research & Reviews : A Journal of Unani, Siddha and Homeopathy · Vol. 11, Issue 3, 2024 · pp. 6–12 Read article
-
A Role of Ergonomics in Advanced Manufacturing Systems: A Harmonious Blend of Human and Machine
Abstract: The integration of human and machine elements in advanced manufacturing systems (AMS) necessitates a careful consideration of ergonomic principles to ensure the well-being and performance of the workforce. This paper explores the critical role of ergonomics in AMS, focusing on physical, cognitive, and organizational aspects. By optimizing the interaction between humans and technology, ergonomics aims to reduce musculoskeletal disorders, improve worker satisfaction, and enhance overall system efficiency. The paper delves …
Published in International Journal of Manufacturing and Production Engineering · Vol. 3, Issue 1, 2025 · pp. 1–7 Read article
-
Intelligent Power Quality Enhancement Strategies for PV-Integrated Smart Distribution Networks: A State-of-the-Art Review
Abstract: The rapid integration of photovoltaic (PV) systems into modern power distribution networks has introduced significant challenges related to power quality. Issues such as voltage fluctuations, harmonic distortion, flicker, and reactive power imbalance arise due to the intermittent and nonlinear nature of solar energy generation. This paper presents a concise literature review of various power quality enhancement techniques employed in PV-integrated networks. Key approaches include the use of active power filters …
Published in International Journal of Electrical Power and Machine Systems · Vol. 4, Issue 1, 2026 · pp. 30–53 Read article
-
Improved Unified Power Quality Conditioner Design and Numerical Simulation for Power Quality Improvement
Abstract: Harmonic currents can distort the waveform voltage, resulting in a weak signal. There is also an increase in the number of loads requiring enough sinus tension to function properly. As electronic devices become more power-sensitive, people are becoming increasingly interested in power conditioning solutions. Therefore, if the amount of electricity being generated falls below a certain threshold, some type of compensation must be provided. Unified Power Quality Controller (UPQC) is …
Published in Journal of Microwave Engineering and Technologies Read article
-
Power Quality Improvement in Grid-Connected PV Systems using TCSC
Abstract: Power quality issues such as voltage sags, swells, and harmonic distortions pose significant challenges to the stability and efficiency of grid-connected systems. This study presents a simulation and analysis of a Thyristor-Controlled Series Capacitor (TCSC) for mitigating voltage sags and swells, thereby enhancing overall power quality. A grid-connected photovoltaic (PV) system integrated with a TCSC is modelled and simulated using MATLAB/Simulink to evaluate its performance under diverse operating conditions. The …
Published in Trends in Electrical Engineering · Vol. 14, Issue 3, 2024 Read article