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591 articles for “Particles”
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An Overview of Heavy-ion Collisions
Abstract: AbstractA large number of experiments have been performed to explore the heavy-ion collisions dynamics using accelerator facilities available in India. The experimental results have revealed that in reactions induced by nucleons or light particles at energies of the order of a few tens MeV, the great majority of the processes one observes are of statistical nature though they cannot be interpreted as a consequence of the decay of a fully …
Published in Journal of Nuclear Engineering & Technology · Vol. 9, Issue 2, 2019 · pp. 8–23 Read article
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ISOLATION OF CELLULOSIC NANOPARTICLES FROM COIR FIBRE FOR THE PREPARATION OF NATURAL RUBBER COMPOSITES
Abstract: Coir fibre and natural rubber are renewable and sustainable agro-resources that can be harnessed for the production of finished rubber articles on industrial scale. In this research, coir fibres extracted from coconut husk were subjected to alkaline-peroxide delignification. The delignified fibres were further transformed into coir fibre cellulosic nanoparticles (CFNP) with particle size distribution of 68–311 nm and a polydispersity index (PDI) of 0.371 through friction homogenization. These particles were …
Published in Journal of Polymer & Composites · Vol. 6, Issue 1, 2018 · pp. 9–16 Read article
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Chemical Synthesis, Spectral Characterization and Electrical Conductivity Behavior of Poly(2-Methoxyaniline-Co-2-Chloroaniline) and its CuO Nanocomposite and Polypropylene Glycol Blend
Abstract: AbstractCopolymerization of 2-chloro aniline and 2-methoxy aniline was achieved chemically by oxidative polymerization technique using ammonium persulphate as the oxidizing agent in acidic medium in the presence of sodium lauryl sulphate, an anionic surfactant. Copolymerization was also carried out in the absence of the surfactant to study the effect of surfactant on the thermal stability and electrical conductivity. The copolymer composite with CuO nano particles and blend with poly propylene …
Published in Journal of Polymer & Composites · Vol. 6, Issue 3, 2018 · pp. 1–13 Read article
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Studies in Effect of Methyl Methacrylate to Butylacrylate Ratio on the Properties of TiO2/poly(methyl methacrylate-co-butylacrylate) Core–Shell Composite Nanoparticles Prepared by Microemulsion Polymerization
Abstract: AbstractTitanium dioxide, as a core, was coupled with the poly(methyl methacrylate-co-butyl acrylate) using amino propyltriethoxy silane as a coupling agent. A two-stage semi-continuous microemulsion polymerization method was used for the synthesis of these core–shell nanoparticles. Ratio of methyl methacrylate to butyl acrylate was varied in the shell of the nanoparticles and the prepared core–shell composite nanoparticles were characterized by Fourier transform infrared spectroscopy, X-ray diffractometer, differential scanning calorimetry, scanning electron …
Published in Journal of Polymer & Composites · Vol. 1, Issue 3, 2013 · pp. 32–39 Read article
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Influences of Silica Fume to Engineering Properties of High Volume Fly Ash Concrete (HVFC)
Abstract: High volume fly ash concrete (HVFC) is one kind of the most promising concrete materials in the 21st century. HVFC has special properties such as high flowability, mechanical strength meets the requirements of contruction standards, low permeability, high durability, and others. Furthermore, HVFC is able to continuously develop strength during long time because the high activity alumina-silicates in the fly ash particles are dissolved slowly and prolong. Therefore, this study …
Published in Journal of Polymer & Composites · Vol. 9, Issue 3, 2021 · pp. 33–44 Read article
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An Optimize Formulation to Synthesis of size Controlled Hydrophobic Starch Acetate Nanoparticles using Box-Behnken Design
Abstract: The best way to improve the overall performance of native starch is by chemical modification. In recent years, hydrophobically modified starch has attracted considerable attention for the design and manufacture of novel nanoparticulate drug delivery carriers. The purpose of this research was to synthesize hydrophobic starch nanoparticles (NPs) and to optimize process factors through the use of response surface methodology (RSM). The corn starch acetate (CSA) NPs was synthesized using …
Published in Journal of Polymer & Composites · Vol. 10, Issue 1, 2022 · pp. 32–54 Read article
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Enhancement in Surface Properties of Magnesium Alloy after Electroless Ternary Alloy Nano Composite Coating
Abstract: AZ91 Magnesium alloys have exceptional rigidity, low density, and electromagnetic protection properties, making them ideal for usage in numerous industrial components. But Magnesium alloys specially AZ91 have a significant disadvantage in terms of corrosion and hardness, which restricts their practical uses. One of the most recent ways for improving the corrosion and hardness of Mg alloys is electro-less nano-coating. This study investigates the hardness and corrosion properties of AZ91 Magnesium …
Published in Journal of Polymer & Composites · Vol. 10, Issue 2, 2022 · pp. 8–13 Read article
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Application of Accelerated PSO and ANN for Optimal Scheduling of Hydrothermal System
Abstract: A short range problem of hydrothermal scheduling of hydrothermal system with cascaded is analyzed in this paper. The net head, water discharge rate and water transport delay between connected reservoirs is considered in the problem. The developed algorithm is demonstrated on a test system consisting one thermal plant and four cascaded hydro plants. The results obtained by the APSO technique are compared to PSO and conventional technique. It is found …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 3, 2016 · pp. 42–52 Read article
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A State-of-the-Art Strategy for Guesstimate of Reliability of Cumbersome Radial Distribution Structure
Abstract: Reliability assessment of an engineering system or systems or component or element is very important in order to forecast its availability or unavailability and other important indices related to the component or system as a whole. Reliability is the floating which tells about the availability or unavailability of the component under proper working conditions for a given period of time. A lot many research papers have been reported for reliability …
Published in Journal of Power Electronics and Power Systems · Vol. 11, Issue 3, 2021 · pp. 9–16 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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Characterization and Stability Analysis of Crude Oil-in-Water Emulsions
Abstract: AbstractProduced water in the form of oil-in-water emulsion is the largest waste stream generated during the oil and gas production. Characterizations of oil-in-water emulsion in terms of stability study with respect to oil droplet size distribution, oil content, total dissolved solids, salinity with respect to time and rheological property have been investigated in the present work. Particle size distributions of freshly prepared oil-in-water emulsion of different crude oil concentration and …
Published in Journal of Petroleum Engineering & Technology · Vol. 5, Issue 3, 2015 · pp. 1–10 Read article
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Nano-additives in Concrete: Present Scenario and Challenges
Abstract: This research work reviews on nanomaterials in concrete. Now, the conventional concrete properties of nanomaterial utilization have been introduced various attentions to increase. Ultimately, as an introduction, nanomaterial is increasing the strength and durability of the concrete. The nanomaterial is defined as the material that includes the particle size which smaller than 200 nm. Nanomaterials must be at least 500 nm in size. During the research of concrete in the …
Published in Recent Trends in Civil Engineering & Technology · Vol. 9, Issue 3, 2019 · pp. 11–20 Read article
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Effect of Size of Crushed Ceramic Tiles as Fine Aggregates in Cement Composites
Abstract: Recent studies have shown marked upsurge of waste production where ceramic contributes to 30% waste production in ceramic industry. Research on ceramic waste as partial substitute for fine aggregate has not been fully exploited. A focused investigation is made to check whether the ceramic waste having particle size same and lesser than fine aggregates as partial substitute in cement mortar and concrete. Ceramic waste collected is crushed into required sizes …
Published in Recent Trends in Civil Engineering & Technology · Vol. 5, Issue 3, 2015 · pp. 46–53 Read article
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Three-phase Squirrel Cage Induction Generators (SCIG) Connected to Grid: An Overview
Abstract: The induction generators associated with non-conventional energy systems like wind, mini/micro hydro are gaining popularity day by day as they are generating clean energy. The induction generators may be operated in two modes: isolated and grid connected. Further the grid connection can be done by using squirrel cage induction generators or doubly fed induction generators. In this paper detailed study of grid connected Squirrel cage induction generator is done, discussing …
Published in Trends in Electrical Engineering · Vol. 3, Issue 2, 2013 · pp. 29–35 Read article
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Adaptive Selective Harmonic Elimination Method for Quasi Z-Source Cascaded Multilevel Inverters in Varying DC Voltage Condition
Abstract: AbstractIn this paper, a new control method for adaptive selective harmonic elimination in a quasi Z-source cascaded multilevel inverter (QZS-CMI) is proposed. According to real condition, the DC sources feeding the inverter are considered to be varying in time. In this condition, the switching angle and shoot-through duty ratio for each module are obtained off-line for different DC source values using particle swarm optimization (PSO) algorithm. The off-line data set …
Published in Trends in Electrical Engineering · Vol. 4, Issue 3, 2014 · pp. 1–9 Read article
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Comparative Performance Analysis of Swarm and Intelligent Evolutionary Techniques for Optimal Design of Distribution Transformer
Abstract: This paper addresses the method of optimal design of a three phase distribution transformer using Genetic Algorithms (GA), Particle Swarm Optimization (PSO) and Teaching-Learning-Based-Optimization Algorithm (TLBO). The design and analysis programs have been developed for constrained optimal design with cost as the objective function. The active part cost of the transformer has been minimized keeping in view BEE (Bureau of Energy Efficiency) standards and constraints. A design example on a …
Published in Trends in Electrical Engineering · Vol. 5, Issue 3, 2015 · pp. 46–58 Read article
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Design Optimization of Three Phase Induction Motor: A Technological Review
Abstract: This paper is intended to review the significant development in design optimization of electrical motors in last decay. Contents in this review paper starts with introduction of induction motor and its role in the industry. Different optimization methods which can be applied to get best suited optimal design of induction motor to achieve best performance of machines are discussed. Genetic algorithm (GA) and particle swarm optimization (PSO) are two latest …
Published in Trends in Electrical Engineering · Vol. 6, Issue 1, 2016 · pp. 1–9 Read article
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Estimation of Power System Stabilizer Parameters Using Swarm Intelligence Techniques to Improve Small Signal Stability of Power System
Abstract: Interconnection of the power system utilities and grids presents a formidable challenge in front of design engineers. With the interconnections, power system has emerged as a more complex and nonlinear system. In recent years, small signal stability issues have gained much importance along with the conventional transient stability issues. Transient stability of the power system can be achieved with high gain and fast acting automatic voltage regulators (AVRs). However, AVRs …
Published in Trends in Electrical Engineering · Vol. 6, Issue 2, 2016 · pp. 16–25 Read article
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Smart Carburetor (A New Technology/Methods to Convert All Fuels into Useful Energy/Shaft power/ Engine Power, in Automobiles)
Abstract: The combustion of fuels is and will be in the nearest future a basic way of acquiring the energy, the work of non-materials are used in this equipment or design that transform all fuels into usable energy or shaft power to improve the performance of that particular vehicle. here simply convert all fuels into a homogeneous mixture (which is a little non-homogeneous in chemical nature) and turn all fuel particles …
Published in Trends in Mechanical Engineering & Technology · Vol. 11, Issue 3, 2021 · pp. 19–23 Read article
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Need of Standardization of Habb: A Unani Medicine
Abstract: Habb (pill) is a solid dosage form for oral administration of drugs in the human body. The present challenge for Unani scholars is to validate the claims made in the classical texts by applying scientific methodologies on this important dosage form. These claims need to be validated and the drugs need to be standardized on more precise scientific parameters. In order to have a good coordination between the quality of …
Published in Journal of AYUSH: Ayurveda, Yoga, Unani, Siddha and Homeopathy · Vol. 6, Issue 2, 2017 · pp. 37–45 Read article