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413 articles for “SREP-60”
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Market Assessment of Polymer Matrix Composites
Abstract: Polymeric composition compound with a plasticizer or very low proportion of pigment or processing aids are nonordinary consider as a composition the goal is to improve strength stiffness or toughness or dimensional stability by embedding particles in matrix or binding phase. Polymer-matrix composites are valued in the aerospace industry for their stiffness, lightness, and heat resistance. They are fabricated materials in which carbon or hydrocarbon fibres (and sometimes metallic strands, …
Published in International Journal of Composite Materials and Matrices · Vol. 3, Issue 1, 2017 · pp. 16–22 Read article
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Status of Composite Materials in Automobile Sector
Abstract: Composite materials may someday have big advantages over steel in automobile manufacturing. Composites are being considered to make lighter, safer and more fuel-efficient vehicles. A composite is composed of a high-performance fiber (such as carbon or glass) in a matrix material (epoxy polymer) that when combined provides enhanced properties compared with the individual materials by themselves. Carbon-fiber composites weigh about one-fifth as much as steel, but are as good or …
Published in International Journal of Composite Materials and Matrices · Vol. 3, Issue 1, 2017 · pp. 27–30 Read article
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Fabrication of a Novel and Efficient Radiation Grafted Functionalized Polymer Adsorbent and Investigation of its Applicability in the Adsorptive Removal of Cr (VI) Ion from Aqueous Solution
Abstract: The grafting of glycidyl methacrylate (GMA) onto non-woven polyethylene (PE) fabric was accomplished using a radiation-initiated grafting technique. The grafted textiles were allowed to react using triethylamine to create functioning amine groups. Upon bond formation yield, the impact of grafting intensity has been examined. Utilizing the appropriate technologies, such as FTIR, TGA, and SEM, the adsorbents were rigorously examined. There was evidence of GMA grafting and diamines according to FTIR, …
Published in International Journal of Polymer Science and Engineering · Vol. 8, Issue 1, 2022 · pp. 1–15 Read article
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Identification of Axial Air-Foil Bearings and Radial Air-Foil Bearings
Abstract: Air-foil bearings (AFBs) are self-acting hydrodynamic bearings, a shaft is supported by a compliant, spring-loaded foil journal lining. Once the shaft is spinning fast enough, the working fluid (usually air) pushes the foil away from the shaft so that there is no contact. The shaft and foil are divided by air's high pressure which is produced by the rotation which pulls gas into the bearing via viscosity effects. AFBs provide …
Published in International Journal of Mechanics and Design · Vol. 3, Issue 1, 2017 · pp. 1–8 Read article
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To Analyze and Study CNC Lathe in Turning Machining Parameters
Abstract: Metal matrix composites (MMCs) consists an important class of design which have weight-efficient structural materials that are inspiring every field of engineering applications. There has been an increasing interest in composites containing low density and low-cost reinforcements. Among various discontinuously dispersed solids used, alumina is one of the most inexpensive and low-density reinforcement available in large quantities as solid waste by-product during combustion of coal in thermal power plants. Hence, …
Published in International Journal of Mechanics and Design · Vol. 3, Issue 2, 2017 · pp. 24–29 Read article
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Optimization of Process Parameters of GMAW for Penetration, Toughness and Tensile Strength by using Taguchi Method
Abstract: Aluminum and its alloys are having variety of applications in Aircraft, food processing etc. Moreover; the use of Aluminum and its alloys are increasing day by day due to its specific properties, like light weight, high strength, and excellent corrosion resistance. However; the present study is planned to analyze and optimize the aluminum weld joint characteristics like tensile strength, penetration and toughness by using Gas Metal arc welding (GMAW) welding. …
Published in International Journal of Mechanics and Design · Vol. 5, Issue 1, 2019 · pp. 1–9 Read article
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Solar passive building cooling - Recent trends and novel approaches
Abstract: Global warming is one of the major threats that mankind faces in the 21th century. About 40% of global energy consumption and Green House Gas (GHG) emissions are accounted by buildings and they play a vital role in global warming. Estimates show that their damaging influence will grow by 1.8% per year through 2050, which specifies that future usage and emissions will be worse than today. Therefore, the necessity of …
Published in International Journal of Mechanics and Design · Vol. 5, Issue 1, 2019 · pp. 10–23 Read article
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Experimental Investigation of MRR and Surface Finish Using Abrasive Jet Machining of Aluminum Alloy 7475
Abstract: In this thesis, different experiments are performed on aluminum alloy 7475 by varying various parameters such as pressure, sand feed, transverse speed and standoff distance, i.e. nozzle-to-work-piece distance to determine material removal rates and surface finish. Optimization is done using L9 orthogonal array by Taguchi technique to determine better parameters to obtain maximum removal rates and minimum surface roughness. The parameters considered are transverse speed 50, 100, 150 mm/min; standoff …
Published in International Journal of Manufacturing and Materials Processing · Vol. 4, Issue 1, 2018 · pp. 20–31 Read article
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A Study on Evaluation of Mechanical Properties of Reinforced Composite Developed Using Corn Husk and Glass Fibre
Abstract: With the increasing demand for the disposal of polymer wastes and environmental waste from agriculture/ farming, this research aims to develop composite materials by using glass fibre and corn husk fibres by hand lay-up technique. The fibre from the maize husk was extracted and then overlapped on glass fibre cloth films in regular or irregular orientations. The reinforcement is done with the epoxy resin. The reinforcement and harden matrix are …
Published in International Journal of Manufacturing and Materials Processing · Vol. 5, Issue 1, 2019 · pp. 32–36 Read article
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Electrochemical Etching on Copper Surfaces to Achieve Superhydrophobicity
Abstract: In the present study, an attempt has been made to create superhydrophobicity on copper substrate by etching the surface at different parameters (current density and time). Etching time was varied from 30 to 240 minutes. Untreated copper surface exhibited contact angle of 91.4°. The best etched surface exhibited a maximum contact angle of 142.1° for a current density of 0.01A/cm2 and etching time of 60 minutes. The structure–property relationship of …
Published in International Journal of Manufacturing and Materials Processing · Vol. 5, Issue 1, 2019 · pp. 27–31 Read article
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Thermal Management Of Cylindrical Lithium-Ion Battery Using A Wavy Tube
Abstract: To maintain a proper temperature range and eliminate local temperature disparities, thermal management is required for lithium-ion batteries in electric vehicles. A wavy tube is presented for a liquid cooling cylindrical lithium-ion battery module in this research. On the suggested battery module, three-dimensional transient simulations were run, and numerical improvements were made by changing the wavy contact angle of the wavy tube. The heat dissipation efficiency and temperature field homogeneity …
Published in International Journal of Manufacturing and Materials Processing · Vol. 9, Issue 2, 2023 · pp. 10–22 Read article
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Case Study of a Typical Underperformed Waste Heat Recovery Power Plant and Remedial Measures
Abstract: With the development of technology, the efficiency of combined-cycle gas turbine (CCGT) has crossed the barrier of 60%. In this paper, a typical problem of low-output generation of a CCGT plant is analysed. During 1st four months of operation of the plant, the sustainable steam turbine power output was between 36 and 36.5 MW against the design output of 37.2 MW. This marginal drop is acceptable considering the degradation factor …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 3, Issue 1, 2017 · pp. 47–57 Read article
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A Comprehensive Combustion Kinetics Modeling Study of Iso-Octane and Air Mixtures
Abstract: The oxidative behavior of the iso-octane (2,2,4-trimethylpentane) has been studied in a range of experimental facilities in order to investigate the relatively unexplored combustion chemistry of the title species and to provide combustor relevant experimental data. The ignition of iso-octane/air and iso-octane/O2 mixtures was studied at temperatures of 600–1300 K, pressures of 1–50 atm, and equivalence ratio 0.5 to 2. This study has been conducted analytically using a kinetic scheme …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 4, Issue 2, 2018 · pp. 30–38 Read article
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TurbochargedTwo-Stroke SI Engine as Back-up Range Extender for Battery Electric Vehicles
Abstract: Installation studies indicates that a compact single-cylinder two stroke Spark Ignited (SI)-engine with a swept volume of 400-500 cc is small enough to install in the heavy-duty Battery Electric Vehicle (BEV) application considered here. Four-stroke engines of similar power to the two-stroke engine would need additional installation volume because of the larger cylinder heads, bulky oil pans and the need for more cylinders to create the same number of power-pulses …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 7, Issue 1, 2021 · pp. 31–57 Read article
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Development and Modification of 2-Stroke IC Engine
Abstract: Today world is concerned more about saving the environment, everywhere precautionary measures have been taken up to reduce pollution. Major amount of air pollution is caused by mechanical animals running on roads; they contribute to most of the air pollution, hence, engineers today to focus on how to build an eco-friendly engine which can reduce the pollution caused by vehicles. A compressed air engine works on air as fuel to …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 7, Issue 1, 2021 · pp. 8–11 Read article
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A study on effects of mass flow rate and compressor pressure ratio on gas turbine cycle performance
Abstract: Gas turbines are rotating machines that work based on the energy of gases from combustion. Each gas turbine includes a compressor to compress air, a combustion chamber to mix air with fuel and ignite it, and a turbine to convert the energy of the hot, compressed gases into mechanical energy. Gas turbines have many advantages over steam turbines, such as small volume, quick installation, quick start-up, easy operation and the …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 8, Issue 2, 2022 · pp. 1–8 Read article
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Production of Composite Biodiesel from Pongamia & Simarouba oil and Comparison of Performance of Composite Biodiesel with Diesel
Abstract: Pongamia oil and simarouba oil are mixed in equal volume to prepare the composite oil. The composite oil is processed through two stage transesterification process to produce composite biodiesel. The composite biodiesel blends are prepared by mixing neat biodiesel with diesel by 5%, 10% and 20% volume respectively. The engine control factors viz., injection pressure, injection timing and fuel preheating temperature are considered for evaluating the performance of composite biodiesel …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 9, Issue 2, 2023 · pp. 1–9 Read article
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Flutter study of a solar powered high-altitude long endurance UAV
Abstract: This paper presents an aero-elastic flutter analysis on a high altitude long endurance unmanned air vehicle. Numerical finite element analysis (FEA) based simulations for flutter have been carried using the commercial FEA package ANSYS. Analytical flutter analysis is performed to verify the FEA results. The analytic flutter analysis gives the divergence speed to be 32.7 m/sec. The numerical flutter analysis of the rudder shows the bending and torsional modes for …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 2, 2016 · pp. 01–09 Read article
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Investigation On Behavior Of Cold Formed Steel In Beam Column Connections
Abstract: Cold form steel structures are used for numerous purposes in construction industry. An attempt has been made in this study to check the behavior of beam column connections by using self-tapered screw in cold form steel section theoretical, experimentally and analytically. Finally, the experimental results are compared with analytical results. This study aims at the following objective by test performed on cold formed steel section to check the behavior connections. …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 1, 2016 · pp. 66–70 Read article
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Effectiveness of deep breathing exercise to reduce stress among intradialytic patients admitted in tertiary care hospital, Belagavi; Karnataka
Abstract: Background: Chronic renal failure is one of the never-ending medical condition and a progressive loss in kidney function over a period of months of years. Hemodialysis is one of the medical management usually do for CRF patients. Stress is one of the common psychological symptoms experienced by the patients during dialysis. This study focuses on aim to evaluate the effectiveness of deep breathing exercise on reducing stress among intradialytic patients. …
Published in International Journal of Cardiovascular Nursing · Vol. 2, Issue 2, 2016 · pp. 10–13 Read article