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88 articles for “Extraction efficiency”
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Grid-Tied PV System with Small DC-Link Capacitor and Low-Frequency Ripple-Free Maximum Power Point Tracking
Abstract: This paper proposes a grid-tied cascaded multilevel inverter (CMI) PV system based on current-fed dual-active-bridge DC–DC converters using small dc-link capacitors. The CMI has many advantages, such as modularity, low harmonic spectra, high ac voltage application with low device rating, and low electromagnetic interference. In addition, distributed maximum power point tracking (MPPT) terminal for segmented photovoltaic (PV) arrays can be achieved by CMI PV converter. The low-frequency ripple-free MPPT is …
Published in International Journal of Electrical Power System and Technology · Vol. 4, Issue 1, 2018 · pp. 39–47 Read article
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Role of Bioactive Compounds on Protein Utilization in Ruminants: A Review
Abstract: Insufficient nutrition is the primary drive of low productivity by ruminants. These insufficiencies can be corrected by supplementation with high-density feeds and locally available tree legumes. These tree legumes contain various types of bioactive compounds, which can be defined as secondary plant metabolites (PSM) that are extra nutritional substances having pharmacological or toxicological effects in man and animals. Besides the primary biosynthetic, the secondary metabolites are also produced within the …
Published in International Journal of Animal Biotechnology and Applications · Vol. 4, Issue 1, 2018 · pp. 21–26 Read article
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Liquid-Liquid Extraction Strategies for the Isolation of Bioactive Heterocyclic Compounds
Abstract: Liquid-liquid extraction (LLE) is a widely employed technique for the isolation of bioactive heterocyclic compounds from natural products, fermentation broths, and synthetic mixtures. The efficiency of LLE depends on several factors, including solvent selection, pH manipulation, salting-out effects, and temperature control. Conventional solvent systems, such as water-organic solvent pairs, are commonly used, while advanced strategies, including ionic liquids (ILs), deep eutectic solvents (DESs), ultrasound-assisted extraction (UAE), and microwave-assisted extraction (MAE), …
Published in International Journal of Chemical Separation Technology · Vol. 11, Issue 1, 2025 Read article
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Revolutionizing Nanoparticle’s Synthesis Through Green Chemistry: A Brief Review
Abstract: Abstract Nanotechnology has experienced remarkable strides in response to the pressing need for environmentally friendly synthesis routes, with a paramount focus on minimizing deleterious by-products. This paradigm shift has galvanized researchers to delve into green biotechnology alternatives, harnessing the potential of plant extracts to reduce metal ions efficiently and yield green nanoparticles. These resultant nanoparticles not only showcase significant potential as antimicrobial agents but also hold profound implications for advancements …
Published in International Journal of Green Chemistry · Vol. 9, Issue 2, 2023 · pp. 26–37 Read article
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Detailed survey on detection of Dirtiness of PV panels using different approaches
Abstract: The accumulation of dust, dirt, bird droppings, pollen, and other environmental contaminants on photovoltaic (PV) panels significantly reduces their power generation efficiency and increases operational and maintenance costs. Therefore, timely and accurate detection of the cleanliness condition of solar panels is essential for maintaining optimal energy production, improving system reliability, and extending the operational lifespan of PV installations. In recent years, considerable research interest has been directed toward automated soiling …
Published in International Journal of Electrical Power System and Technology · Vol. 12, Issue 2, 2026 Read article
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Depression Detection System
Abstract: Traditionally, depression was identified through in-depth clinical interviews, during which the psychologist would analyze the subject’s responses to ascertain his or her mental condition. With the prevalence of depression increasing, some automated and trustworthy methods of depression recognition are needed. Our Objective it to design a model that can extract relevant features automatically as an input using efficient machine learning algorithms and further detect the depressive state of the user …
Published in International Journal of Embedded Systems and Emerging Technologies · Vol. 9, Issue 1, 2023 · pp. 28–37 Read article
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Continuous Counter-current Liquid–Liquid Extraction in a Packed Column: Experiments and Simulations using Aspen Plus
Abstract: The liquid–liquid two-phase mass transfer in a packed column was examined by varying acetic acid concentrations in the feed, solvent to feed flow rate S/F ratio using random packing. The overall volumetric mass transfer coefficient, percentage extraction, Number of Transfer Units were determined quantitatively. Simulation results were validated with experimental data and optimization of number of stages was done by using Aspen Plus. From the results obtained in the packed …
Published in International Journal of Chemical Engineering and Processing · Vol. 7, Issue 2, 2021 · pp. 1–9 Read article
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Modeling and Simulation of n-ZnO/i-ZnO/Si p-i-n Heterojunction Solar Cell
Abstract: This paper presents 2D numerical simulation of n-ZnO/i-ZnO/p-Si p-i-n heterojunction solar cell using commercial device simulation software ATLAS from Silvaco Inc. This work deals with the design and performance optimization of p-i-n heterojunction solar cell using two dimensional computer aided design (TCAD) tool ATLAS from Silvaco Inc. The device has been simulated and analyzed with respect to the I-V characteristics of the device in dark and illuminated condition. Further figure …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 2, Issue 2, 2016 · pp. 1–7 Read article
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Treatment of Dyeing Waste Water by Using Garlic Extract as a Natural Coagulant
Abstract: Coagulation is the process of removal of very fine particles by forming bigger flocs in the water. But this process is not much efficient in waste water treatment as in the treatment of drinking water. This is because of adding chemical coagulant for the treatment of waste water. Use of chemicals in treatment of dyeing waste water causes formation of non-biodegradable sludge. To avoid this we made an attempt in …
Published in International Journal of Water Resources Engineering · Vol. 1, Issue 1, 2015 · pp. 23–30 Read article
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Waste Water Treatment by Using Garlic Extract as a Natural Coagulant
Abstract: Coagulation is the process of removal of very fine particles by forming bigger flocs in the water. But this process is not much efficient in waste water treatment as in the treatment of drinking water. This is because of adding chemical coagulant for the treatment of waste water. Use of chemicals in treatment of dyeing waste water causes formation of non-biodegradable sludge. To avoid this we made an attempt in …
Published in International Journal of Water Resources Engineering · Vol. 2, Issue 2, 2016 · pp. 24–31 Read article
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A Comprehensive Review of AES-Integrated DWT Watermarking Techniques for Image and Video Authentication
Abstract: The exponential growth of digital media production, distribution, and online sharing has intensified the need for reliable mechanisms that ensure image and video authenticity. With the rise of advanced editing tools and deepfake technologies, safeguarding multimedia content from tampering, unauthorized replication, or malicious manipulation has become a critical research challenge. Traditional cryptographic solutions provide confidentiality but fail to maintain post-decryption integrity, whereas watermarking techniques ensure persistent ownership verification but often …
Published in International Journal of Embedded Systems and Emerging Technologies · Vol. 12, Issue 2, 2026 Read article
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Studies on Extraction, Modelling and Purification of Quercetin from Peel of Allium cepa
Abstract: ABSTRACT Quercetin is an anti-oxidant, which very efficiently scavenges highly reactive biological species such as peroxynitrite and hydroxyl radical. Quercetin belongs to the flavonoid’s family. The present studies on optimization of physico-chemical parameters like effects of different solvents, different solvent percentages, particle size, pH and extraction time for the extraction of quercetin was studied. The highest quercetin concentration for optimized conditions was 38 µg/ml. In the soxhlet extraction process, the …
Published in International Journal of Plant Biotechnology · Vol. 4, Issue 1, 2018 · pp. 3–11 Read article
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Green and Nanotechnology Approaches for the Determination of Tungsten (VI): A Modern Analytical Perspective
Abstract: The determination of tungsten (VI) has gained increasing importance due to its extensive industrial applications and growing environmental relevance. Tungsten is widely used in alloys, catalysts, electronics, and energy systems, leading to its release into environmental matrices such as water, soil, and biological systems. Accurate monitoring of tungsten at trace and ultra-trace levels is therefore essential for environmental assessment and industrial quality control. Conventional analytical techniques, including inductively coupled plasma …
Published in International Journal of Analytical and Applied Chemistry · Vol. 12, Issue 1, 2026 · pp. 26–35 Read article
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Beyond Words: Exploring the Boundaries of Text-to-Speech Technology
Abstract: This work presents a novel, effective, and economical method for turning text graphics into audio information in real-time. This method enables visually challenged individuals to efficiently interact with computers through a voice interface. Text extraction from color photographs is a tough computer vision task. Text-to-speech conversion uses OCR technology to convert English alphabets and numbers in images into voices. Of course! The main goal of real-time speech-to-text translation is the …
Published in International Journal of Broadband Cellular Communication · Vol. 9, Issue 2, 2023 · pp. 1–5 Read article
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Studying the Effects of Extracts that Prevent Corrosion on Sheet Metal in an Acidic Condition
Abstract: The prevention of corrosion in steel materials in acidic conditions is summarized in this paper. There are many accelerated corrosion preventives for acidic solutions available. High temperatures, lowgrade steels, and HCl solutions are the main focus points. The creation of corrosion inhibitor compositions which combine corrosion inhibitors with surfactants, solvents, and expressions to increase the potency of single compounds at extreme temperatures is another focus of this analysis. This review’s …
Published in International Journal of Metallurgy and Alloys · Vol. 8, Issue 1, 2022 · pp. 22–26 Read article
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Performance and Emission Analysis of Water HyacinthBiodiesel with TiO2 Nano-Additives Over Diesel Engine
Abstract: AbstractThis research work is related to performance and emissions analysis of diesel in combination with thewater hyacinth biodiesel with TiO2 as a nano-additive. This study also proposes water hyacinthbiodiesel (WHB) as a possible alternative energy source because the species is extensively dispersed infreshwater, marine, and aquatic ecosystems worldwide. Investigation is performed comparing TiO2nano-additive blended with water hyacinth biodiesel and diesel at various engine loads. WHB wasmixed with petroleum diesel fuel …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 11, Issue 1, 2025 · pp. 26–37 Read article
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Solar-Powered Electric Vehicle Charging Station with Smart Load Scheduling
Abstract: The rapid rise in EV usage has increased demand for environmentally friendly and cutting-edge charging infrastructure. This paper outlines the creation and deployment of a solar-powered EV charging station that incorporates a smart load scheduling system aimed at optimizing energy consumption, minimizing reliance on the grid, and improving charging efficiency. To guarantee practical feasibility and scalability, the proposed system encompasses thorough design work, modelling, and performance assessment. A bidirectional converter …
Published in International Journal of Electrical Power System and Technology · Vol. 12, Issue 1, 2026 · pp. 7–14 Read article
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Local Binary Patterns and Its Extended Variants
Abstract: ABSTRACTThis paper focuses on the Local Binary Patterns and its various important variants. LBP is a non-parametric descriptor and used to extract, analyze, recognize and classify the different modality images. It summarizes the local patterns of image characteristics efficiently. LBP and its many extended versions have been extensively used in numerous applications of computer vision, image processing, pattern recognition and biomedical field in recent years. Very discriminative and computationally efficient …
Published in International Journal of Image Processing and Pattern Recognition · Vol. 6, Issue 2, 2020 · pp. 13–25 Read article
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Optimizing Dyeing Processes for Nylon: A Study onUltrasonic and Natural Dye Application
Abstract: This study focuses on the application of natural dyes, specifically those derived from onion (Allium cepa) extracts, for dyeing nylon fabric, while assessing the impact of different mordants, including potassium dichromate, copper sulfate, and alum. The research explores the effectiveness of High Temperature High Pressure dyeing techniques to enhance dye uptake and color fastness. Natural dyes, traditionally viewed as less effective than synthetic counterparts, are being reevaluated for their eco-friendly …
Published in International Journal of Green Chemistry · Vol. 10, Issue 2, 2024 · pp. 9–15 Read article
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Nanomaterials via Green Synthesis: Insights into Biocompatibility and Biotechnological Applications
Abstract: This review critically examines recent advances in the green synthesis of nanomaterials (NMs) and their diverse biological applications, with a focus on antimicrobial, antioxidant, anticancer, and anti-inflammatory properties. The reviewed studies evaluated key characteristics of green-synthesized NMs, including their size, shape, and concentrations, as assessed in both in vitro and in vivo biological models. Compared to traditional chemical methods, green synthesis demonstrated superior efficacy, enhanced biocompatibility, and reduced toxicity. For …
Published in International Journal of Green Chemistry · Vol. 11, Issue 1, 2025 · pp. 1–16 Read article