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1980 articles for “MEC” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Low-frequency Vibration-assisted Welding: A Review of Recent Developments
Abstract: Low-frequency vibration-assisted welding is a promising technique for improving the quality of welds. This article provides a comprehensive review of recent developments in this field. The basic principles of low-frequency vibration-assisted welding is introduced, and the advantages and limitations of thistechnique are discussed. Various types of low-frequency vibration-assisted welding methods are presented, including ultrasonic vibration-assisted welding, mechanical vibration-assisted welding, and electromagnetic vibration-assisted welding. The effects of low-frequency vibration on the …
Published in Journal of Experimental & Applied Mechanics · Vol. 13, Issue 3, 2022 · pp. 1–17 Read article
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Effect of Hardfacing on Mechanical Properties
Abstract: A metal working process in which a harder alloying elements are deposited to a softer material the process is called hardfacing or hard surfacing. The life of that part which is hardfaced increases with this process. The present investigation discusses the effects of FeCr, FeV, FeMo, FeMn, C and Ni addition applied on mild steel having carbon content 0.27 using the submerged arc welding process.The effect of these alloying elements …
Published in Journal of Experimental & Applied Mechanics · Vol. 13, Issue 3, 2022 · pp. 18–27 Read article
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Investigations on Mechanical Properties of Al 8011 Reinforced with Micro B4C/Red Mud by Stir Casting Method
Abstract: Aluminium metal matrix composites are emerging as the most versatile material for unique automotive, aviation, aerospace, defense, marine applications and other structural applications due to their excellent mixture of properties. In the present investigation, a hybrid composite of Al8011 aluminium alloy reinforced with B4C and red mud was fabricated by stir casting method. Red mud is one of the major waste material extracted from the bauxite ore of alumina during …
Published in Journal of Electronic Design Technology · Vol. 7, Issue 1, 2016 · pp. 32–38 Read article
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Mechanical Properties of Geopolymer Concrete Paver Block
Abstract: Geopolymer concrete (GPC) is an innovative material and a real alternative to conventional Portland cement concrete. It relies on minimally processed natural materials or industrial by-products to significantly reduce its carbon footprint. However, the development of this material is still in its infancy, and a number of advancements are still needed. This paper focuses on the production of geopolymer concrete paver block (GPCPB) without using sodium hydroxide and investigates the …
Published in Journal of Geotechnical Engineering · Vol. 3, Issue 1, 2016 · pp. 51–55 Read article
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Advancements in Robotic Arm Design: Analyzing Gripping and Grasping Mechanisms
Abstract: The main objective of this project is to design and build a child-sized prosthetic hand that can passively adapt to a grasp. The ability of the fingers to adapt to the shape of an object grasped in the hand is known as an adaptive grip. Four fingers and the thumb flex inward and individually adjust to the contour of the object being grabbed as the hand closes around it. When …
Published in Journal of Instrumentation Technology & Innovations · Vol. 13, Issue 1, 2023 · pp. 09–16 Read article
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Mechatronics Robot Navigation using Machine Learning through Prolog Programming Language
Abstract: A basic decision-making system is developed in this paper using Neural Network in Machine learningto explore a robot in concealed condition. The robot can move out of explicit labyrinths effectivelythrough modifying its bearing and speed persistently via the neural system model for machinelearning. Over the past several years, navigation tasks for mobile robots have been widely studied.There have been many attempts to introduce the usage of machine learning algorithms. Excellentperformance …
Published in Journal of Mechatronics and Automation · Vol. 8, Issue 1, 2021 · pp. 39–47 Read article
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Short Review on the Probability of Carbon Nanotube Based Nanofluidics in Fluid Mechanics
Abstract: In this short review, author has briefly introduced the subject named as nanofluidics. Also, author has provided a short review on passive (surface-driven) capillary flow related to microfluidics. The effects of channel aspect ratio, surface wettability, liquid viscosity, effective viscosity, centrifugal force, and bend angle, are described to control the passive capillary flow in microfluidic devices and systems. Author has demonstrated the difference between leaky-device and non-leaky device in microfluidics. …
Published in Journal of Microwave Engineering and Technologies · Vol. 7, Issue 3, 2020 · pp. 14–17 Read article
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Evaluation of Mechanical Property and Optimization of the Dry Sliding Wear Behavior of Carbon Black-Alumina-Epoxy-Glass Composite by using Design of Experiments
Abstract: The research work is mainly focused on investigating the effects of wear parameters: filler content (0%, 4% CB, 4% Al2O3,and 2% CB + 2% Al2O3), applied load (4.905, 9.810, 14.710, and 19.62 N), sliding distance (20, 30, 40, and 50 mm) by using Design of Experiments (DOEs) approach. The experimental results were analyzed using MINITAB V16 scientific graphical and data analysis software. Signal-to-Noise (S/N) ratio, analysis of variance (ANOVA) proved …
Published in Journal of Materials & Metallurgical Engineering · Vol. 4, Issue 2, 2014 · pp. 21–31 Read article
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Structural, Mechanical, Electrical and Magnetic Properties of Mn–Zn Substituted Ca-hexaferrites
Abstract: In the present investigation, the samples with chemical composition Ca(CoTi)0.5(MnZn)x/2Fe11–xO19 with (x = 0 to 1.0) have been synthesized using perfect stoichiometric proportions of reacting oxides by standard ceramic technique. The pellets of 15 mm diameter were prepared and sintered at 1313 K in air atmosphere for 106 h and characterized by using XRD and SEM. XRD studies of the samples showed hexagonal magnetoplumbite (M) structure with unit cell dimensions …
Published in Journal of Materials & Metallurgical Engineering · Vol. 1, Issue 1-3, 2011 · pp. 99–111 Read article
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Weldability of Aluminium Alloy Using Tungsten Inert Gas Welding Process for Mechanical Properties: A Review
Abstract: Metal components are joined using heat or pressure in TIG welding, sometimes referred toas Gas Tungsten Arc Welding. Pulsed current welding utilises inert gas for enclose the weld pools and electrodes. The intricate welding procedure known as TIG welding uses tungsten inert gas. It switches and forth between high and low level amps. Here, the weld quality and power output improve when the current is increased. Pulsed current TIG welding …
Published in Journal of Materials & Metallurgical Engineering · Vol. 13, Issue 1, 2023 · pp. 15–26 Read article
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Mechanisms and Applications of Lyoluminescence
Abstract: When strongly energized halide or organic crystals are dissolved in а liquid solvent like water, light is emitted as an end result of а recombination process. This emission of light is known as Lyoluminesсenсe0. The emitted light intensity, called the Lyoluminescent intensity, depends on а class of factors like radiation doses, probability of radiative recombination, rate of dissolution inside the solvent, etc. The effect is enhanced when the materials have …
Published in Journal of Nuclear Engineering & Technology · Vol. 12, Issue 1, 2022 · pp. 1–6 Read article
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To explore the effect of polyethylene glycol additive on mechanical and gas permeation properties of polyvinyl alcohol membranes
Abstract: Polyvinyl alcohol (PVA) membranes were prepared by solution casting and blended with Polyethylene glycol (PEG) in de-ionized water which led to the formation of porous and flexible membranes. Extensive experimentation were performed, in order to find out that at what composition of PEG pores will be generated in the PVA membranes. The PVA polymer is a hard and crystalline thermoplastic so high concentrations of PEG were used, i.e. 40 wt%, …
Published in Journal of Polymer & Composites · Vol. 7, Issue 1, 2019 · pp. 27–33 Read article
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Studies on Mechanical Properties of Ultra High Molecular Weight Poly Ethylene (UHMWPE)-Basalt Fiber Reinforced Hybrid Polymer Matrix Composites
Abstract: Composite materials have become a preferred material now days because of their strength and also they are light. An additional material can be produced by a combination of matrix and reinforcement. The connections also give the flexibility of the design, because many of them can be formed in complex shapes. The economic significance of composite materials is now illustrious. There is strong indication far and wide that this importance will …
Published in Journal of Polymer & Composites · Vol. 7, Issue 3, 2019 · pp. 8–19 Read article
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Effect of Length and Tenor of the Introduction of Sansevieria cylindrica Fibers on the Mechanical Performance of Natural Fiber Composites
Abstract: The substitution of synthetic fillers, such as carbon black, with biobased ones in natural rubber (NR) is a trend of interest in view of increased sustainability and exploitation of agroforest waste in the materials sector. In this work, NR was filled with short fibers extracted from Sansevieria cylindrica (SC) leaves of various length (10, 20, 30, or 40 mm) and in different amounts (3, 6, or 10 g per 100 …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 94–101 Read article
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Firefly Algorithm and its Applications to Mechanical Engineering- A Review.
Abstract: The firefly algorithm (FA) is one of the Nature-inspired algorithms which is inspired by the flashing behavior of fireflies. This algorithm appeared about five years ago in 2008, and its literature has expanded with diverse applications. In this, randomly generated solutions will be considered as fireflies, and brightness is depending on their performance on the objective function. This algorithm is based on a formula of light intensity I that decreases …
Published in Journal of Production Research & Management · Vol. 9, Issue 1, 2019 · pp. 9–16 Read article
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Experimental Investigation on Mechanical Properties of Concrete Replacing of Steel Slag as Coarse Aggregate
Abstract: The basic objective of this study was to identify alternative source of good quality aggregate which is depleting very fast due to the fast pace of construction activities. This paper describes the optimum level of replacement of Energy Optimized Furnace (EOF) steel slag by weight of coarse aggregate for a mix proportion of M20 grade concrete to find out the optimum ratio of steel slag. Civil Engineers have been challenged …
Published in Journal of Structural Engineering and Management · Vol. 4, Issue 2, 2017 · pp. 44–49 Read article
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Evaluation of Mechanical Properties of Hybrid Fibers in Concrete
Abstract: Engineering Cementitious Composites (ECC) is an advanced growing method to increase the longevity of the structure in all behaviour aspects. ECC consist of cement, fine aggregate, fiber and water.High performance, ductility and durability of cementitious matrix can be achieved by addition of fiber. Nowadays, the member of fibers play a vital role to increase the overall structural behaviour of concrete matrix. In that, synthetic-based fibers are used in various applications. …
Published in Journal of Structural Engineering and Management · Vol. 2, Issue 1, 2015 · pp. 1–5 Read article
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Mechanical Behaviour of Conventional Concrete Using Fly Ash and Steel Fibre
Abstract: Concrete that area unit victimization with the waste materials, recycled materials etc. could be a revolutionary topic at this time of concrete business. This kind of concrete that resembles the traditional concrete, however the assembly or utilization of such concrete needs minimum quantity of energy and causes least hurt to atmosphere. This kind of concrete absorbs the waste product that is additionally useful for atmosphere aspects [1]. Some SCMs area …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 4, Issue 1, 2017 · pp. 18–23 Read article
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A Review on Mechanization of Process Planning for Automated Fiber Placement
Abstract: Process planning is a crucial phase of the Automatic Fiber Placement (AFP) workflow. It creates valuable and effective system processes centered on working material, composite architecture and manufacturing tools. The existing state of process planning needs a large degree of involvement from the process manager and may benefit significantly from improved automation. A collection of main stages and roles is then drawn up to define the most complex and time-consuming …
Published in Journal of VLSI Design Tools and Technology · Vol. 10, Issue 3, 2020 · pp. 9–15 Read article
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Mechanical Properties of High Performance Glass Fibre Reinforced Concrete with Super Plasticizer
Abstract: High performance concrete (HPC) has been used in various structures all over the world since last two decades. Glass Fibre Reinforced Concrete (GFRC) is a relatively new type of building material and it is being increasingly used in different countries. Glass-fibre reinforced concrete (GRC) is a material made of a cementitious matrix composed of cement, sand, water and admixtures, in which short length glass fibres are dispersed. The usage of …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 11–16 Read article