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375 articles for “working concentration”
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E-Waste Toxicity and Its Environmental Impact, Challenges, and Solutions for Sustainable Waste Management in India
Abstract: Introduction: E-waste describes any electronic component that is obsolete or no longer functional. The ever-increasing public concern of e-waste in India stems predominantly from the aggressive expansion of the electronics industry along with insufficient recycling and disposal practices. Lead, mercury, and cadmium in e-waste pose serious risks to human health and the environment by polluting air, soil, and water. Informal recycling methods further exacerbate these hazards through unsafe practices. This …
Published in Research and Reviews: A Journal of Toxicology · Vol. 15, Issue 2, 2025 · pp. 1–11 Read article
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Investigating the Influence of Process Parameters on Photochemical Machining of Phosphor Bronze Alloy Microchannels
Abstract: Microchannels are widely employed in microfluidic devices, biomedical systems, and compact heat exchangers, where their functional efficiency depends strongly on surface finish, dimensional control, and edge quality. Traditional machining techniques often face limitations in producing such features with the required precision, prompting the use of advanced micromachining methods. In the present work, photochemical machining (PCM) has been applied to fabricate serpentine-shaped microchannels in phosphor bronze. The study systematically investigates the …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 837–846 Read article
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Development of Cotton and Cotton Gauze Fabric Coated with Swietenia microphylla Bark as a Wound Contact Layer
Abstract: The present work discusses the development of cotton and cotton gauze-based bandage using mahogany. The biological properties of mahogany bark extract have been identified. The 25% concentration of mahogany extract have been treated directly and kept at room temperature for conditioning. Further the antibacterial activity of mahogany-treated samples have been evaluated against wound infecting pathogens (AATCC- 147) Escherichia coli, Bacillus subtilis, Pseudomonas aeruginosa, Klebsiella pneumoniae, Serratia marcescens and Staphylococcus aureus. …
Published in Research and Reviews: A Journal of Toxicology · Vol. 4, Issue 2, 2014 · pp. 1–4 Read article
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Experimental Investigation on Performance of Vapor Compression Refrigeration System using Nanorefrigerant (R134a+Al2O3) with/without Evaporative Condenser
Abstract: In traditional refrigeration system the main focus of researchers is always to improve its performance by reducing work of compression and enhancing the heat transfer rate in different heat exchangers and this can be achieved by adopting suitable technique. In this research work experiment is carried out on vapor compression refrigeration test rig using nanorefrigerant of R134a as base refrigerant and nanoparticles of aluminium oxide Al2O3 in different concentration so …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 7, Issue 3, 2020 · pp. 1–8 Read article
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Optimization Study by Response Surface Methodology and Artificial Neural Network on the Culture Parameters of Citric Acid Bioproduction from Sweet Potato Peels
Abstract: In the cause of this research work, two steps enzymatic hydrolysis of sweet potato peel was carried out respectively. The effect of α-amylase dose, reaction time, and reaction temperature and biomass weight on glucose concentration was investigated carefully. The response surface methodology (REM) predicted the highest reducing sugar concentration at liquefaction to be 74 g/L, at the following optimized conditions; temperature of 45°C, α-amylase dose 0.7 %v/v, biomass weight 22.345 …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 9, Issue 1, 2022 · pp. 30–38 Read article
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Mechanical Characterization of Adhesive in Lap Joint Under Tensile Load
Abstract: The present work gives details of adhesive characterization in lap joints under quasi static tensile failure load. Rivets are major threat for an aircraft structure because of high stress concentration at lesser area ease to failure and also causes drag in aerodynamic perspective. Researchers are searching for a different method to avoid the stress concentrations in lesser area. The use of adhesives instead of rivets is most feasible solution for …
Published in Journal of Polymer & Composites · Vol. 11, Issue 13, 2023 · pp. 96–103 Read article
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Green Renewable Synthesis of Iron Oxide Nanoparticles Embedded in a Polymer-Enzyme Composite for Wastewater Treatment in Hail, Saudi Arabia
Abstract: Effective wastewater treatment through green and sustainable approach is one of the primaries concerning issue of the Kingdom of Saudi Arabia (KSA) to resolve water scarcity. KSA has witnessed massive industrial development over the last four decades alongwith majorly generate wastewater pollution. Therefore, sustainable wastewater treatment is among primary research goal of KSA and current study is also targeted in this direction. Henceforth, The objective of the present study is …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 297–305 Read article
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Interfacial Engineering of Carbon Fiber/Epoxy Laminates Using Functionalized Graphene Nanoplatelets: Experimental and Numerical Study
Abstract: Current research work studies the influence of amines(–NH₂) and carboxyl(–COOH) functionalized graphene nanoplatelets on the mechanical and thermomechanical behavior of unidirectional hybrid composite. Composites having different graphene concentration from 0 to 0.7 wt% were fabricated, characterized and analyzed for multiple testing - tensile testing, dynamic mechanical analysis (DMA) and Fourier transform infrared spectroscopy (FTIR). Tensile testing indicates better elastic modulus and tensile strength due to efficient load transfer between nanoparticles …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 61–77 Read article
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Performance Analysis of Speech Performance Analysis of Speech Recognition using Advanced Algorithm
Abstract: In this paper, the authors have worked on a speech processing technique wherein they took audio speech as input signal from user and by recognition process, they perceived recorded word. Specifically, the authors concentrated on the amplitude and zero cross of speech signal, and two of the most important and useful terms, namely MFCC and Mahalanobis distance, for the purpose of getting an efficient outcome. The authors evaluated the proposed …
Published in Current Trends in Signal Processing · Vol. 3, Issue 1, 2013 · pp. 20–25 Read article
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Comparison of Hazard Potential of LPG Handling Units in GCU using Consequence Analysis
Abstract: The scope of this work was to quantitatively assess the risks involved in a section of a chemical process plant where LPG is produced using various consequence analysis models. The Gas Concentration Unit (GCU) was considered for the analysis as it produces a major portion of the LPG in a Petroleum Refinery. The Debutanizer, Stripper and HP (high pressure) Receiver, the three units which handle LPG, were considered for consequence …
Published in Journal of Industrial Safety Engineering · Vol. 2, Issue 3, 2015 · pp. 34–48 Read article
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Study of Nickel Toxicity and Recovery in Freshwater Major Carp Catla catla
Abstract: The present work was carried out to examine the hazardous effects of chronic intoxication of nickel ions in Catla catla, a fresh water major carp. Fingerlings were exposed to sublethal concentrations of nickel sulphate solution (5 ppm and 10 ppm) for 21 days and histotoxicity in liver, brain and intestine was studied periodically. Normal architecture of hepatocytes was disrupted. The histopathological manifestations observed in the liver were congestion of hepatocytes, …
Published in Research and Reviews: A Journal of Toxicology · Vol. 1, Issue 1-3, 2011 · pp. 63–73 Read article
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Numerical Investigation of Slip Conditions in Nanofluid Flow Induced by a Nonlinearly Stretching Sheet: A bvp4c Approach
Abstract: The present work describes a numerical analysis of the steady, laminar flow over a nonlinear stretching sheet in a nanofluid medium. Slip conditions in terms of velocity, temperature, and concentration have been introduced into the mathematical model to capture the impact of interfacial mass transfer on the stretching surface. The problem is modeled to include nanoparticle transportation in terms of Brownian diffusion and thermophoresis, thereby affecting the temperature and concentration …
Published in Recent Trends in Fluid Mechanics · Vol. 13, Issue 2, 2026 · pp. 34–51 Read article
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OFDM Receiver Design Based on Adaptive Modulation and Channel Estimation for Underwater Acoustic Communication
Abstract: Submerged or under water acoustic communication (UWAC) is an intriguing area in communication research where we can expect to get a high information rate, a high throughput and a low latency which frequently is an exceptionally difficult assignment. In this work, we outline an OFDM receiver system that is reasonable for submerged acoustic communication in view of adaptive modulation and Kalman filter based channel estimation. We have concentrated on the …
Published in Recent Trends in Electronics Communication Systems · Vol. 4, Issue 1, 2017 · pp. 7–16 Read article
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Review on Recent Automotive Experimental Applications of Nano Coolants
Abstract: An automotive car radiator consists water and ethylene glycol as conventional coolants for many years Water and ethylene glycol are heat transfer fluids, which have low thermal conductivity and these techniques comes under nanotechnology and with ages of advancement these fluid are known as “nanofluids” which has the speciality higher thermal conductivity than conventional coolants. The mentioned article is highlighted on the research and numeric carried out from pre- researchers …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 9, Issue 1, 2019 · pp. 1–10 Read article
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Fitness and Aesthetics Hostel Gym Management
Abstract: Fitness & Aesthetics’ mission is to help people achieve their fitness objectives by offering training regimens and healthy living plans, as well as assistance with managing a club. By automating the current manual method with the use of digitized equipment and comprehensive computer software, it will provide the information of the Trainer, Gym, Facility, Workout Routines, and Time Slot and proceed into the administrative position, satisfying their requirements, in order …
Published in International Journal of Computer Science Languages · Vol. 1, Issue 1, 2023 · pp. 21–27 Read article
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Eco-friendly drilling fluid water loss controlling agents
Abstract: The water loss from the drilling fluid with the addition natural additives like bagasse, natural sugar, natural rubber was studied. The entire study is focused on improving the quality of controlling fluid loss with effect of natural additives. The concentrations of the additives were changed to achieve the desired reasonable value of fluid loss with the help of high pressure and high temperature (HPHT) filter press which worked at the …
Published in Journal of Petroleum Engineering & Technology · Vol. 9, Issue 2, 2019 · pp. 14–16 Read article
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Eco-friendly Drilling Fluid Water Loss Controlling Agents
Abstract: AbstractThe water loss from the drilling fluid with the addition natural additives like bagasse, natural sugar, and natural rubber was studied. The entire study is focused on improving the quality of controlling fluid loss with effect of natural additives. The concentrations of the additives were changed to achieve the desired reasonable value of fluid loss with the help of high pressure and high temperature (HPHT) filter press which worked at …
Published in Recent Trends in Fluid Mechanics · Vol. 5, Issue 3, 2018 · pp. 19–21 Read article
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The role of Ethylacetate fractions of Parkinsonia aculeata and Newbouldia laevis against Carbon Tetrachloride Toxicity in Rats
Abstract: This research work studied the preventive effect of ethylacetate fractions of Parkinsonia aculeata and Newbouldia laevis using carbontetrachloride (CCl 4 ) model to induce toxication in rats. Increased (p<0.05) serum concentrations of enzymes and non-enzymes biochemicalparameters such as lactate dehydrogenase, gamma glutamyl transferase, alkaline phosphatase, alanine and aspartate transaminases andtotal bilirubin, were seen in group of rats administered only carbon tetrachloride. However, groups that received 100 to 200mg/kg of thetwo …
Published in Research & Reviews: A Journal of Drug Design & Discovery · Vol. 9, Issue 2, 2022 · pp. 39–50 Read article
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Calcareous Soil as a Promising Adsorbent to Remove Fluoride from Aqueous Solution: Equilibrium, Kinetic and Thermodynamic Study
Abstract: Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 In this work, the feasibility of employing calcareous soil to remove fluoride ions from its aqueous solutions was investigated under batch mode. The influence of solution pH, sorbent dose, initial fluoride concentration, contact time, stirring rate and temperature on the removal process were investigated. The equilibrium adsorption data were analyzed using Langmuir, Freundlich and Temkin isotherm models. The kinetics of fluoride …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 3, Issue 3, 2012 · pp. 1–21 Read article
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Eddy Current Imaging Technique for Quantitative Analysis of Defects in Aircraft Components
Abstract: Aircraft industry’s concern is primarily in the area of safety of components and structures and it is extremely important to constantly evaluate and monitor the structures and systems for defects and anomalies noninvasively, thereby preventing unplanned outages and shutdowns as also catastrophes. To accomplish this, different nondestructive testing techniques have been in use since decades. Each technique is unique by itself and has its associated advantages and limitations; a suitable …
Published in Journal of Aerospace Engineering & Technology · Vol. 2, Issue 1, 2012 · pp. 1–5 Read article