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1247 articles for “thero-chemical”
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A Review on Metal Inert Gas Welding of Dissimilar Steels
Abstract: Joining of dissimilar metals has found its use extensively in power generation, electronic, nuclear reactors, petrochemical and chemical industries due to environmental concerns, energy saving, high performance, cost saving and so on. However efficient welding of dissimilar metals has posed a major challenge due to difference in thermal, mechanical and chemical properties of the materials to be joined under a common welding condition. This causes a steep gradient of the …
Published in Journal of Materials & Metallurgical Engineering · Vol. 10, Issue 1, 2020 · pp. 1–15 Read article
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Depolymerization of Polypropylene: A Systematic Review
Abstract: AbstractPolypropylene have become an indispensable ingredient of human life and most widely used thermoplastic in commodity applications. Polymerization of propylene is carried out by using Ziegler-Natta or Metallocene catalysts, which results in high molecular weights and crystalline polypropylene which are not required for several applications. Reduction in molecular weight of polypropylene in conventional reactors is uneconomical and complicated. Therefore to overcome this problem researchers and technologists proposed a post reactor …
Published in Journal of Polymer & Composites · Vol. 4, Issue 2, 2016 · pp. 1–16 Read article
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Investigation of Jute Mat with Waste Fish Net by Varying Matrices in Hybrid Composites
Abstract: AbstractIn this study the low cost material of multi filament waste fish net and jute fibres were incorporated as the main reinforcing materials with epoxy resin and polyester resin as the matrix in order to increase the strength of the hybrid composites. The samples were fabricated using hand layup technique. The nylon fibre of waste fish net possesses high impact strength, elasticity property and highly resistant to abrasion of chemicals …
Published in Journal of Polymer & Composites · Vol. 3, Issue 3, 2015 · pp. 27–34 Read article
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Electrochemical Exfoliation of Graphene Oxide (GO) and Thermally Reduced Graphene Oxide (TrGO) Using Ecofriendly Reducing Agent as Cow Urine
Abstract: The Graphene oxide (GO), the reduced form of GO i.e. (rGO) with thermally reduced graphene oxide (TrGO), have concerned significant interest in various fields with their exceptional properties. We investigate the electrochemical exfoliation processes of GO and rGO to understand their structural and electrochemical behavior of GO and TrGO through various characterization techniques. The electrochemical exfoliation method offers a versatile and scalable approach for the mass fabrication of the materials …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 89–100 Read article
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Dodecahedron Methane Hydrate Cage Structure – An Ab initio Study
Abstract: Comparative study of 512clathrate hydrate cage having different numbers of methane guest molecules encapsulation is carried out by calculating interaction energy, encapsulation energy and thermo-chemical stability parameters using density functional theory-based calculation with B3LYP functional and 6-31G(d) basis set. Nuclear magnetic resonance spectroscopy(NMR), Infrared spectroscopy (IR spectroscopy) and Raman spectroscopy of empty and methane encapsulated 512clathrate hydrate cages, change in Gibbs free energy and methane hydrate formation enthalpy are predicted …
Published in Journal of Petroleum Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 51–64 Read article
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Recycling of Waste Generator Oils by Different Treatment Methods
Abstract: Engine oils with wide range of viscosities are used to lubricate an engine’s moving parts in different industrial units. Used engine oils are considered hazardous wastes because of their high content of pollutant ,thermal degradation products from the base oil and additives and combustion products from fuel and lubricant. The used oil still contains a large proportion of valuable base oil that may be used to formulate new lubricants if …
Published in Journal of Petroleum Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 103–115 Read article
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Formation of Reaction Bubbles in FCC Riser Reactor
Abstract: For modeling FCC unit, art of defining undefined hydrocarbon misxtures in conjunction with application of two different specialized fields of Chemical Engineering–Chemical Reaction Engineering (CRE) and Computational Fluid Dynamics (CFD) are required. CRE needs elaboarte and appropriate definition of undefined mixture and their chemical kinetics, whereas CFD needs solution of more regorous differential equations to define fluctuating and turbulent flow. Most of the reported works in available literature seems to …
Published in Journal of Petroleum Engineering & Technology · Vol. 1, Issue 1-3, 2011 · pp. 16–27 Read article
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Development and Synthesis of Graphene Based Gas Sensor
Abstract: AbstractGraphene has become a promising material for many different applications, such as nano electronic devices, physical, chemical and biochemical sensors, transparent conductive films, clean energy scavenging and storage devices and nano composite formulation. Recently gas sensing as a critical application intelligent system, is receiving increasing attention in both industry and academia. Sensing application using graphene sheets as transducer have experienced surge of activities in recent years, especially for gas sensing …
Published in Journal of Semiconductor Devices and Circuits · Vol. 7, Issue 2, 2020 · pp. 13–19 Read article
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Evolution of Graphene Oxide : A Survey
Abstract: Graphene, first isolated in 2004, is the 2D material that captivated researchers’ attention due to its extraordinary properties. These extraordinary properties motivated researchers to keep on searching better ways for synthesis of Graphene oxide (GO) and reduced graphene oxide (rGO). Several synthesis(oxidation-reduction) mechanisms are available in literature such as: Staudenmaier’s(ST), Hofmann’s (HO), Hummers’ (HU), Modified Hummer’s (MHU), improved Hummers’(IHU) and Mild Oxidation(MO) methods for oxidation and thermal, chemical, hydrothermal and …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 5, Issue 2, 2018 · pp. 31–39 Read article
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Biomaterials, Colloid and Surface Chemistry
Abstract: Colloids and colloidal systems are crucial in a variety of commercial and industrial settings. They function in everyone’s cell- Blood, Blood fluid, intracellular fluids also known as “Humours”. Colloidal science, on the other hand, is a nascent field with a small number of certified professionals compared to other fields of study. Furthermore, most colloidal research has been limited to industrial operations. Agriculture, the concrete industry, horticulture, the floral business, mining, …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 8, Issue 3, 2021 · pp. 22–27 Read article
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Application and Limitation of Metal Thermochemical Processing
Abstract: The technically intriguing and monetarily feasible technique for enhancing the surface layer of materials is surface engineering. The aim is to establish a vast scope of useable attributes that are separate from the core substrate, together with physical, chemical, electrical, electronic, magnetic, or mechanical, even though the material surface monitors the operational life throughout many implementations. The thermochemical intervention, a type of surface engineering, uses heat diffusion to incorporate non-metal …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 9, Issue 3, 2022 · pp. 25–29 Read article
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Effect of Annealling on Optical Band Gap of Fe2O3 Thin Films on Amorphos Transparent Glass Substrate by Spray Pyrolysis Method
Abstract: The Fe 2 O 3 thin film has widely used photo-electrochemical cells. In this paper, the optical properties like band gap of thin films is depend on annealed temperature at 100 o C and 200 o C was discussed. The optical property of Fe 2 O 3 are studied by UV- Vis spectroscopy .The optical band gap decreased after increasing annealing temperature. The refractive index of Fe 2 O 3 …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 10, Issue 2, 2023 · pp. 25–29 Read article
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Comparative Analysis of MOSFET, CNTFET and NWFET for High Performance VLSI Circuit Design: A Review
Abstract: Nanowires are inimitable materials for considering phenomenon in nanoscale regime. Nanowires development exhibits ample of applications by controlling their, structure, composition as well as their electrical properties. This paper review diverse types of nanowires, nanowire field-effect transistor (NWFET) structure and their comparison with novel devices. Firstly, this paper describes different types of nanowires and nanowire heterostructure that shows nanowire heterostructures eliminates various factors that limit the performance of homogeneous nanowire …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 2, 2016 · pp. 19–32 Read article
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Urban Storm Water Management through Artificial Recharge for Smart Cities
Abstract: AbstractThe storm water during rainy season causes drainage problem and often roads are damaged by rainfall runoff. This problem is serious in big cities and number of industries, where most of the open area is covered by roads or some concrete structures without proper drainage. The water on roads during rains remains stagnant for hours together due to poor storm water management and results into erosion of roads. Our major …
Published in Journal of Water Resource Engineering and Management · Vol. 4, Issue 3, 2017 · pp. 10–14 Read article
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PHYSIOCHEMICAL ANALYSIS OF WASTE WATER COLLECTED FROM THREE MAJOR RIVERS IN MONSOON SEASON FROM PALAKKAD
Abstract: Various waste management techniques were implemented in India have failed due to various reasons, the major reasons are industrial growth and urbanization. The pollution impacts on aquatic communities can be observed directly to the industrialized centres, which discharges series of chemical pollutants to effluent systems.. These wastes mainly encompasses a broad range of contaminants such as petroleum hydrocarbons, chlorinated hydrocarbons and heavy metals, various acids, alkalis, dyes and other chemicals …
Published in Journal of Water Resource Engineering and Management · Vol. 5, Issue 2, 2018 · pp. 51–55 Read article
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River Water and Soil Analysis in Noyyal River, Tirupur
Abstract: Tirupur is famous for its textile industries. Because of this, the rate of water pollution is also very high. The generation of waste water from the industries is the main reason for the waste water problems to the environment. Some industries are not adopting any proper treatment methods to avoid this pollution, because of the high treatment cost. Without giving proper treatment the waste water is dumping in to the …
Published in Journal of Water Resource Engineering and Management · Vol. 1, Issue 1, 2014 · pp. 20–23 Read article
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Quality Assessment of Underground Water in Summer Season of Rewa City, Madhya Pradesh, India
Abstract: This paper presents the quality assessment of underground water and seasonal variation in physical and chemical properties of underground water in a summer season of Rewa district, Madhya Pradesh state, India. The variable data of samples are within prescribed limits as suggested by the world health organization (WHO), Indian standard (ISI) and BIS desirable limit for drinking water for drinking purpose. Yearly variation in physical and chemical parameters like temperature, …
Published in Journal of Water Resource Engineering and Management · Vol. 3, Issue 1, 2016 · pp. 34–41 Read article
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Hydrochemical Characterization and Evaluation of Groundwater Quality of Delhi Region
Abstract: A hydrochemical study was conducted in Delhi to identify the chemical composition of ground water and water quality with respect to drinking purpose. 22 groundwater samples from various locations in Delhi region were investigated. The various physic-chemical parameters such as pH, total dissolved solids, total hardness, calcium, magnesium, total alkalinity, chloride, fluoride, nitrate, sulphate, sodium and iron were determined. Piper diagram and water quality index were used to determine hydrochemical …
Published in Journal of Water Resource Engineering and Management · Vol. 3, Issue 2, 2016 · pp. 32–41 Read article
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Preliminary Investigation on Steel Slag: Production, Processing and Cementitious Properties
Abstract: Steel slag is glass-like by-product left over from the conversion of iron to steel in a basic oxygen furnace, or from the melting of scrap to make steel in an electric arc furnace. This paper reviews the production, processing, and cementitious properties of steel slag, and its use as a cementing component in different cementing systems. The chemical composition of raw ore and cooling of molten steel slag have a …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 17–22 Read article
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Utilization of Agricultural Waste for Defluoridation of Water: A Review
Abstract: Fluoride is an essential micronutrient for human health which can be obtained from food items. Excess fluoride is one of the anionic, inorganic contaminants, found predominantly in ground water due to weathering of rocks, geochemical reactions or anthropogenic activity such as disposal of industrial wastewaters, because of which removal of excess fluoride is mandatory. Among various methods used for defluoridation of water, adsorption is widely used. It is more remarkable …
Published in Recent Trends in Civil Engineering & Technology · Vol. 5, Issue 2, 2015 · pp. 23–29 Read article