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664 articles for “active techniques”
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A Comparative Study of ANN and Traditional Control Techniques based Active Shunt Power Filter for 400 Hz Aircraft Electric Power System
Abstract: Sinusoidal current control strategy for extracting reference current for shunt active power filters have been modified using artificial neural network (ANN) and its performances have been compared too. The acute analysis of comparison of the compensation capability is based upon THD, speedwell and recommendations will be given for the choice of technique to be used. The simulated results using MATLAB model are shown in this paper, and they will undoubtedly …
Published in Trends in Electrical Engineering · Vol. 6, Issue 1, 2016 · pp. 42–49 Read article
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Survey of Advanced Control Techniques for Active Power Filters in Grid Integration
Abstract: Active power filters (APFs) can increase power quality, dependability, and stability on power utilities by compensating for harmonic and reactive current components in power supplies. The performance and stability of active power filters are greatly enhanced by the control strategies used with them. When these two crucial elements start to compete, it is impossible to achieve both unity power factor (UPF) and flawless correction of current harmonics. A systematic review …
Published in Current Trends in Signal Processing · Vol. 13, Issue 3, 2023 · pp. 24–34 Read article
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Detection of Image Tempering: An Exhaustive Survey
Abstract: In modern technology, the manipulation of the digital image is very easy and common. An image can be tampered simply by photo editing software like Photoshop in a very advanced way. The motive of this research is to detect and confront the validness of the image, and if the image has been produced or altered at that point recognizing the altered locale of the image. Here we are utilizing different …
Published in Journal of Open Source Developments · Vol. 5, Issue 3, 2018 · pp. 1–10 Read article
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Performance Evaluation of Neural Network and Conventional Control Techniques Based Shunt Active Power Filter for Constant Frequency Aircraft Power System
Abstract: Synchronous reference frame strategy for extracting reference currents for shunt active power filters have been modified using artificial neural network and its performances have been compared. The acute analysis of comparison of the compensation capability based on THD and speed will be done, and recommendations will be given for the choice of technique to be used. The simulated results using MATLAB model are shown, and they will undoubtedly prove the …
Published in Journal of Aerospace Engineering & Technology · Vol. 6, Issue 1, 2016 · pp. 1–9 Read article
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Signal Feature Extraction and Machine Learning Techniques for Human Activity Recognition
Abstract: Human Activity Recognition (HAR) has emerged as a critical field of study with diverse applications in healthcare, fitness tracking, smart homes, and human-computer interaction. The aim of this research is to create an efficient HAR system through advanced techniques characterized by signal feature extraction and machine learning algorithms. The MEMS sensors are used appropriately during data mining to extract time-domain, frequency-domain, and statistical features, which are subsequently passed to the …
Published in Journal of Mobile Computing, Communications & Mobile Networks · Vol. 12, Issue 1, 2025 · pp. 24–41 Read article
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Comparison of Control Strategies using Soft Computing Techniques for Shunt Active Power Filters in Aircraft Power Utility of 400 Hz
Abstract: Three different control strategies for extracting reference currents for shunt active power filters optimized using adaptive tabu search and genetic algorithm have been compared and their performance has been evaluated under different load conditions. The compensation ability of different control strategies will be compared and suggestion will be given for optimum strategy to be used under different loads. Simulation results using MATLAB have been included.Keywords: Active power filter (APF), constant …
Published in Journal of Aerospace Engineering & Technology · Vol. 4, Issue 1, 2014 · pp. 9–21 Read article
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Comparative Critical Analysis of Control Techniques Optimized using ATS Algorithm and Conventional Control Techniques Applied in Shunt Active Power Filter for Total Harmonic Reduction for Power Electronic Converters in High Frequency (400 Hz) Aircraft Sys
Abstract: Three different conventional control strategies used for extracting reference currents for shunt active power filter and optimization of these strategies using Adaptive Tabu Search have been compared and their performances have been evaluated under different balanced and unbalanced loads connected together. The compensation ability of different control strategies will be compared, and suggestion will be given for optimum. Simulation results using MATLAB have been included. Keywords: Active powers filter (APF), …
Published in Journal of Aerospace Engineering & Technology · Vol. 5, Issue 3, 2015 · pp. 44–52 Read article
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Application of AI Techniques in Three-phase Shunt Active Power Filter in Unbalanced and Distorted Supply Conditions
Abstract: This paper deals with a new improved model of the shunt active power filter having the control scheme using Artificial Neural Networks (ANN) technique in unbalanced and distorted supply system. In this paper, three soft computing techniques viz; Genetic algorithm, Fuzz logic, neural network are used. The simulation results using MATLAB model confirm that combination of these algorithms together create an optimum system, which clearly proves the effectiveness of the …
Published in Journal of Power Electronics and Power Systems · Vol. 3, Issue 3, 2013 · pp. 15–26 Read article
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Testing for Shielding and Estimation of Linear Absorption Coefficient Using Gamma Irradiation of Polymer Composites
Abstract: The polymer composites were developed for the application of shielding material in a radiation environment. To determine the linear absorption coefficient of the developed materials for neutrons; an experiment was carried out using an Am-Be neutron source of strength ~3 × 107 n/s. The composites of Epoxy polymer were filled with different three fillers; Graphite, Lead, and Boron Nitrided Nanopowder prepared with the same filler content. Transmitted neutrons were detected …
Published in Journal of Polymer & Composites · Vol. 10, Issue 3, 2022 · pp. 59–68 Read article
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Face Recognition using Genetic Algorithm with Self-Organizing Mapping based Dimensionality Reduction Technique
Abstract: The contribution of this work is to develop a face recognition technique where Genetic Algorithm has been used. Here facial features are extracted using Active Appearance Model (AAM) and Kohonen Self-Organizing Mapping (SOM) technique has applied to reduce the dimension of the extracted features. Efficient image pre-processing techniques are used to prepare the face for the proposed system. Finally, Genetic Algorithm has been used to classify the facial features. In …
Published in Journal of Multimedia Technology & Recent Advancements · Vol. 2, Issue 1, 2015 · pp. 22–26 Read article
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Effectiveness of Contract Relax Antagonist Contraction Technique and Muscle Energy Techniques to Improve Hamstring Muscles Flexibility in Collegiate Females
Abstract: Background: Flexibility is an essential element of normal biomechanical functioning in daily life. The hamstring muscles are important to control the human movement and are thus involved in activities such as running, jumping and a range of postural actions. The hamstring muscle tightness produces decreased range of motion and reduced flexibility of the pelvis, hip and knee joints. Muscle stiffness of the lower extremities and the subsequent decrease in joint …
Published in Research and Reviews: A Journal of Neuroscience · Vol. 7, Issue 2, 2017 · pp. 16–21 Read article
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Selection and Mechanism of using active gas in GTAW Process – A review
Abstract: Gas tungsten arc welding process is known for its good quality welds. However, the lack of penetration of the process leads to low productivity. Many techniques have been implemented in the past to improve the joint penetration and thereby the productivity of GTAW process. In one of the technique, active gas like Carbon dioxide, Nitrogen or Oxygen is used in some proportion along with the inert gas. This addition of …
Published in Journal of Materials & Metallurgical Engineering · Vol. 8, Issue 1, 2018 · pp. 49–61 Read article
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Changing Classrooms Learning In This Constructivistic World
Abstract: The constructivist view of learning clicks in our mind a variety of different teaching practices. It encourages students to use active techniques (i.e. projects, experiments, real-world problem solving etc.) to create new construction of knowledge. It shows and talks about their own process of constructing and understanding. The teacher ensures he/she understands the students' preexisting conceptions, and guides the activity to address them and then build on them. This paper …
Published in OmniScience: A Multi-disciplinary Journal · Vol. 5, Issue 1, 2015 · pp. 1–4 Read article
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Qualitative and Quantitative Effects of Non-Thermal Atmospheric Pressure Plasma and ErCr: YSGG Laser Activation on Surface Remineralization and Fluoride Release of Three Different Fluoride Varnishes
Abstract: Dental caries remains a prevalent oral health concern worldwide, prompting ongoing research into innovative approaches for caries prevention and management. This experimental investigation endeavors to conduct a comparative assessment of the bioactivity, fluoride release kinetics, shear bond strength, and compressive strength of glass ionomer cement (GIC) augmented with three distinct types of inorganic bioactive nanoparticles. Bioactive nanoparticles have garnered interest in dental materials for their potential to enhance material properties …
Published in Journal of Polymer & Composites · Vol. 12, Issue 5, 2024 · pp. 292–303 Read article
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Breakup Fusion of 18O with 144Sm
Abstract: Excitation function measurements have been done for the evaporation residues populating in the system 18O+144Sm. For this purpose, the stacked foil activation technique has been used subsequently accompanied by offline γ-ray spectrometry. The analysis of the experimental cross section of three evaporation residues 158Tm(p3n), 157Tm(p4n), and 155Ho(ap2n) has been done in the light of theoretical code PACE-4. Current findings demonstrate that the experimental cross sections of evaporation residues formed via …
Published in Journal of Polymer & Composites · Vol. 11, Issue 7, 2023 · pp. 53–59 Read article
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Development and Analysis of Novel Silver Ion-Conducting Glass-Polymer Electrolytes
Abstract: The development of efficient and stable solid electrolytes is crucial for advancing energy storage technologies such as solid-state batteries and electrochemical devices. In this study, a novel series of silver ion-conducting glass–polymer electrolytes (GPEs) based on the composition (1–x) PEO: x[0.75AgI:0.25(Ag₂O:WO₃)] with x ranging up to 50 wt.% was synthesized and thoroughly analyzed. Unlike conventional techniques such as solution casting or sol–gel methods, these GPEs were fabricated using an innovative …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 600–605 Read article
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Solution of Different Problems Related to Active Power Filter Design Using Python
Abstract: ABSTRACTThere are a variety of problems that lead to problems of rising losses and degradation in power quality in AC due to harmonic distortions, voltage sag, voltage spike, flicker, voltage swell, voltage fluctuations, noise and voltage imbalance. In this paper, different problems are analysed and based on their circuit type, input and output value of voltage and current VSI circuit is designed to increase performance in the system. In AC …
Published in Journal of Microelectronics and Solid State Devices · Vol. 9, Issue 3, 2022 · pp. 1–8 Read article
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Harmonic Compensation in Grid Interconnected DG Units by Closed Loop Control
Abstract: This paper deals with improvement of power quality problem namely harmonic problem using distributed generation as their source of electricity. The harmonics occur in such a system because of the nature of loads connected. There are many power quality problems; out of which harmonics normally caused by nonlinear loads like variable frequency drives, fluorescent lightning, office computers etc. have adverse effects on the power quality. Also, harmonic detection and prediction …
Published in Journal of Power Electronics and Power Systems · Vol. 7, Issue 1, 2017 · pp. 9–17 Read article
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Synthesis, characterization, and antibacterial activity of silver nanoparticles with expired minocycline as reducing agent: proposed as a recycling technique.
Abstract: In this research, expired minocycline, a broad-spectrum tetracycline antibiotic, was employed as both a reducing and stabilizing agent for the eco-friendly synthesis of silver nanoparticles. This sustainable method avoids the use of toxic chemical reducing agents, providing a greener alternative for nanoparticle production. The synthesized silver nanoparticles were analyzed using several characterization techniques, such as UV-Vis’s spectroscopy, scanning electron microscopy, transmission electron microscopy, and Edex analysis, to assess their structural, …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 16, Issue 1, 2026 · pp. 30–43 Read article
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Simulation Results of Harmonic Compensation by Using PQ Based PI Controller for Grid Connected Current Controlled DG Unit
Abstract: With the development of new technologies and electronic devices, one of the main topics of special concern is the aspect of power quality, amongst which control and prediction of harmonics are of utmost importance. The presence of harmonics caused by nonlinear loads which are common in industrial plants and large scale office buildings means a threat to the sensitive equipments like that of computers, adjustable speed drives, power electronics load …
Published in Trends in Electrical Engineering · Vol. 6, Issue 2, 2016 · pp. 64–72 Read article