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218 articles for “labor.”
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Study on Hazardous Explosives
Abstract: The Mining sector uses explosives to extract ore and discover orebodies, according to the Canadian Explosives Research Laboratory. Oil and gas companies use them to construct pipelines, the forest business uses them to construct roads, and the construction industry uses them to construct infrastructure. Explosives are required by the aerospace sector to power the rockets that launch satellites into orbit. Among other things, explosives are necessary for the rocket fuel …
Published in International Journal of Energetic Materials · Vol. 7, Issue 2, 2021 · pp. 26–33 Read article
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Corrosion Protection of Rebar steel in Ocean Atmosphere
Abstract: Rebar is an important engineering metal. It is used in construction of housing, bridge and other infrastructures works. It is surround with concrete for strengthen building block components. The concentration of chloride ions in ocean atmosphere is higher so it produces hostile environment for rebar steel. The lots of porosities are available on the outer surface area of concrete so chloride ions enter inside by osmosis or diffusion process. It …
Published in International Journal of Energetic Materials · Vol. 8, Issue 1, 2022 · pp. 1–11 Read article
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Analysis of Mechanical and Corrosion Properties of AISI50110 (EN31) Steel With and Without Heat Treatment
Abstract: The mechanical properties of steel decide its applicability for a particular condition. Heat treatment processes are commonly used to enhance the required properties of steel. The material was machined to ASTM standards and then different tests like microstructure analysis, hardness test, impact test, etc. were carried out after the heat treatment processes. All the tests were carried out in the mechanical workshops and laboratories under the supervision of their respective …
Published in International Journal of Metallurgy and Alloys · Vol. 1, Issue 1, 2015 · pp. 24–41 Read article
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Potential Applications of Titanium Dioxide in Diverse Fields
Abstract: Metal oxide semiconductors, such as TiO2 nanoparticles are frequently used as photocatalyst due to non-toxicity, chemical stability, and the ability to possess relatively high photocatalytic activity of TiO2. Laboratory studies have demonstrated that organic compounds such as alcohols, carboxylic acid, phenolic derivatives, and chlorinated aromatics can be readily mineralized by TiO2 into harmless carbon dioxide, water and simple mineral acids, using molecular oxygen as the primary oxidant. Keywords: environmental pollution, …
Published in International Journal of Metallurgy and Alloys · Vol. 3, Issue 2, 2017 · pp. 8–10 Read article
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Taguchi based validation of wear prediction for Zirconium dioxide particulate reinforced Aluminium 7068 composites
Abstract: The current work emphasis on the tribological characterization of Zirconium dioxide (Zirconia, ZrO2) particulates reinforced Aluminium 7068 metal matrix composites for different process variables established following design of experiments methodology and consequent taguchi based validation techniques for wear prediction. The pin on disc wear test is carried out on specimens fabricated enroute ultrasonic assisted stir casting with controlled dispersion of 12 Wt.% of ZrO2 and subsequent machining of the castings …
Published in International Journal of Metallurgy and Alloys · Vol. 4, Issue 1, 2018 · pp. 37–50 Read article
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Study the Corrosive Effect of Greenhouse Gases on Metallic and Non-metallic Materials
Abstract: Carbon dioxide is a major corrosive pollutant for building materials. It enters inside materials by diffusion or osmosis process and in presence of moisture it produces H2CO3 which decrease the pH value and accelerates chemical and electrochemical reaction with building materials. The carbonation reaction produces deterioration inside and outside of building materials. It produces corrosion reaction with metallic bar and disbanding with concrete. CO2 reacts with Ca (OH)2 and Mg(OH)2 …
Published in International Journal of Metallurgy and Alloys · Vol. 7, Issue 2, 2021 · pp. 17–28 Read article
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Nanocoating and Electrospray Techniques Use to Mitigation Corrosion Sculptures
Abstract: The most sculptures of the world are created by the brass, bronze, iron, silver, gold and metalloid. They come in contact of corrosive pollutants to produce chemical, electrochemical and biochemical reactions and develop various form of corrosion like uniform corrosion, galvanic corrosion, pitting corrosion, stress corrosion and crevice corrosion. The corrosive gases CO2, NO2 and SO2 concentrations increase in atmosphere rapidly after industrialization. The major contributors of these gases are …
Published in International Journal of Metallurgy and Alloys · Vol. 8, Issue 2, 2022 · pp. 1–11 Read article
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A Review on Green Inhibitors to Corrosion of Steel
Abstract: Traditions of green corrosion inhibitors are described to elucidate soybean oil derivatives, Spondias cytherea leaves, Rosmarinus officinalis L. leaves, Chrysophyllum albidum; Tridax procumbens L. leaves, roasted coffee, Jatropha curcas leaves, Propolis, Manilkara zapota fruit peel, avocado, Canna indica flower. Green inhibitors are ever praised due to environmentally friendly usage. Industrial feasibility is studied from laboratory simulations. Carbonated drink corrosion of steel is most acceptable to use green inhibitors. Corrosion in …
Published in International Journal of Composite and Constituent Materials · Vol. 5, Issue 1, 2019 · pp. 12–21 Read article
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Experiments on the Passive Capillary Flow of Aqueous Ethanol in Sudden Expansion Microchannels towards the Applications in Nanofluidics and Nanoelectromechanical Systems
Abstract: In this work, total three individual sudden expansion microchannels are designed and fabricated by maskless lithography, hot embossing lithography and direct bonding technique inside the cleanroom laboratory. Polymethylmethacrylate (PMMA) is used as the selected polymer to fabricate these microchannels. Aqueous ethanol (15% ethanol, 85% dyed water) is prepared and used as dyed working liquid. Surface-driven (passive) capillary flow of prepared working liquid is recorded by a CMOS camera corresponding to …
Published in International Journal of Composite and Constituent Materials · Vol. 6, Issue 1, 2020 · pp. 15–22 Read article
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Evaluation of Antimicrobial Efficacy of Photogenic Iron Nanoparticles Against Xanthomonas campestris
Abstract: This study investigates the antimicrobial efficacy of photogenic iron nanoparticles (FeNPs) against Xanthomonas campestris, a notorious plant pathogen causing bacterial spot disease in various crops. The synthesis of FeNPs was achieved through a facile and eco-friendly green synthesis approach, utilizing a plant extract as a reducing and capping agent. The resulting photogenic FeNPs were characterized using various analytical techniques, confirming their size, morphology, and composition. The antimicrobial activity of the …
Published in International Journal of Composite and Constituent Materials · Vol. 9, Issue 2, 2023 · pp. 37–54 Read article
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A Mini Review on Properties and Application of Composite Materials
Abstract: This study demonstrates the need of composite materials over common materials. Using different molding methods, composite components are manufactured in different sectors. The primary advantage of composite is lightweight, relative stiffness and strength properties. The key concepts of composites are its physical properties, material properties, tooling, design, inspection and repair. Military vehicles, such as airplanes, helicopters, and rockets, placed a premium on high-strength, light-weight materials. While the metallic components that …
Published in International Journal of Composite Materials and Matrices · Vol. 3, Issue 1, 2017 · pp. 1–8 Read article
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Combine Effect of Dry and Decomposed Raffia Palm in the Bioremediation of Oil-based Drill Cutting
Abstract: This study determines the effect of dry substrate and decomposed raffia palm for degradation of oil- based drill cuttings bioremediation. The remediation process was effectuated using dry and decomposed raffia palm. The experiment was carried out at the research Centre located at Agricultural and Environmental Engineering departmental workshop in Rivers State University, Port Harcourt. Samples of oil-based drill cuttings were bulked in eleven reactors with four replications (T1, T2, T3-T11). …
Published in International Journal of Composite Materials and Matrices · Vol. 9, Issue 1, 2023 · pp. 21–29 Read article
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Experimental Demonstration on Polymer based Microfluidics
Abstract: In this experimental work, a single polymer based gradual expansion microchannel is designed. This microchannel is fabricated by the maskless lithography, hot embossing lithography and direct bonding technique inside the cleanroom laboratory. Dyed water is the prepared working liquid in this work. The surface-driven (passive) microfluidic flow of dyed water is recorded in the fabricated device using a CMOS camera catching 25 frames per second with a corresponding time-scale resolution …
Published in International Journal of Polymer Science and Engineering · Vol. 7, Issue 1, 2021 · pp. 23–26 Read article
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Fabrication of Grain Cleaning Machine
Abstract: Agriculture plays a significant role within the Indian economy. Indian agriculture is on the horizon and one in every of the foremost challenges is to reverse the decline in agriculture. The post-harvest cereals contain various amounts of non-grain (MOG) materials like stone, pod, trunk and trash. MOG classification is very important to boost the standard of the food. The development of the grain separation machine produces a review of previous …
Published in International Journal of Mechanics and Design · Vol. 6, Issue 1, 2020 · pp. 17–20 Read article
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Software Simulation of Thermoelectro-Mechanical Systems: A Review
Abstract: Energy assumes a fundamental part in our current circumstance. Regular another exploration comes to use the hopeless cause. In our power plant and cars loads of nuclear power delivered into air, which is squandered and produces a worldwide temperature alteration. To upgrade this cycle and for the use of energy, electro-mechanical gadgets are utilized. Electro-mechanical gadgets use the nuclear power of the exhaust nuclear power and converts it into electrical …
Published in International Journal of Mechanics and Design · Vol. 7, Issue 1, 2021 · pp. 1–7 Read article
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Tensile Strength of Welded Buttly Joints by Different Types of Welding
Abstract: In this study, an experimental method for the selection of optimal welding for joining metals there areseveral methods which they are used for joining metals, that it includes using welding brazing, MetalInert Gas (MIG) Welding and Gas Metal Arc Welding is an arc welding process, in which the weld isshielded by an external gas (Argon, helium, CO2, argon + Oxygen) or other gas mixtures is one of thewidely used techniques …
Published in International Journal of Mechanics and Design · Vol. 7, Issue 2, 2021 · pp. 30–34 Read article
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Enhancing the Heat Transfer in the Thermal Chimney by Attaching the Fin under CFD Analysis
Abstract: The primary and secondary heaters in heat exchangers were numerically evaluated at nominal temperatures of 140°C for the primary heaters, 100°C for the secondary heaters, and 20°C for the ambient temperature in order to validate the design idea for enhancing the air temperature. The “convective heat transfer” of air in a thermal chimney built to laboratory size using two different types of electrical heaters and a rectangular cross-section of constant …
Published in International Journal of Mechanics and Design · Vol. 9, Issue 2, 2023 · pp. 9–26 Read article
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Development of VMC Fixture for End Cap of TFO Twister Machine to Reduce Setup Time
Abstract: In industries, different types of fixtures are used to hold and support the workpiece according to requirements to ensure dimensional accuracy during machining. This paper presents the solution for an industrial problem to develop a single fixture for machining of an end cap of a two-for-one (TFO) twister machine. Currently, two different fixtures are used for performing different operations on the end cap in a horizontal and vertical position on …
Published in International Journal of Manufacturing and Materials Processing · Vol. 6, Issue 1, 2020 · pp. 24–30 Read article
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A Review on Reduction of Scrap in Foundry by Using of Quality Control Tools
Abstract: Casting is one of the oldest manufacturing processes and is a primary manufacturing process. Products originating from castings are the input for many manufacturing processes such as forging, machining, rolling, wire drawing, extrusion, and welding. Therefore, the product made from casting should be a good quality product without defects or with minimum defects. Indeed, the quality of the products reduces as a reason of many process parameters such as molten …
Published in International Journal of Manufacturing and Materials Processing · Vol. 6, Issue 1, 2020 · pp. 6–17 Read article
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Fabrication of Mechanical Raking Beach Cleaner with Offset Tine
Abstract: In the rapidly changing world &swift urbanization, cleaning and maintainingclean beaches are of equal importance.Beaches are a natural resource that in recentyears has been turned into Garbage Dump.Termed as "Beach Pollution" it mainlyoccurs due to the human activities along thecoastline and inland which threatens thevery human existence & Marine health.Such pollution is generally categorized intoLitter/Trash, Seaweed, Oil spill, Stone/shell& many more. In the same context, we havedeveloped the method to …
Published in International Journal of Manufacturing and Materials Processing · Vol. 8, Issue 1, 2022 · pp. 1–5 Read article