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1570 articles for “Point”
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A Novel Technique for Improved Recovery of Mg-Analysis of the Microstructure and Physical Properties
Abstract: Aluminium-Magnesium alloys are used widely in industrial applications as well as for the preparation of metal matrix composite because of their low density and high specific strength. Magnesium has a low boiling point and the recovery of magnesium is poor when it is added in pure form particularly as cheaply available turnings to the liquid metal. Magnesium is added to aluminium for increasing its wettability and thus helping in uniformly …
Published in Journal of Materials & Metallurgical Engineering · Vol. 3, Issue 1, 2013 · pp. 1–7 Read article
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Development of New Castable Al-Alloy-TiB2 Metal Matrix Composites
Abstract: There has been a constant drive for replacing monolithic aluminum alloys by aluminum-based metal matrix composites (MMCs) in many industrial applications where high stiffness and high strength to weight ratio are required. The present paper describes a cost-effective route to produce Al-Alloy-10 wt % TiB2 metal matrix composites by in situ molten flux assisted reaction synthesis. In Situ LM25-TiB2 composite material prepared by reaction synthesis was cast into thick as …
Published in Journal of Materials & Metallurgical Engineering · Vol. 2, Issue 1-3, 2012 · pp. 65–70 Read article
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Recovery of Iron Values from Waste Iron Ore Slime
Abstract: Iron ore slime is a waste material generated after beneficiation of iron ores. Due to limited iron ore resources and fast depleting of high-grade iron ore, iron ore producers are emphasizing on recovery of iron values from iron ore slime. Different beneficiation techniques such as hydrocyclone, Wet High Intensity Magnetic Separator (WHIMS), Dispersion-flocculation, and Flotation are some options to recover the lost iron value from the waste. In the present …
Published in Journal of Materials & Metallurgical Engineering · Vol. 6, Issue 3, 2016 · pp. 25–31 Read article
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Investigation of Local Weighting Materials as a Substitute To Barite In Drilling Mud Formulation
Abstract: Weighting materials are important components needed to increase the density of drilling mud in order to provide enough hydrostatic pressure to balance abnormalpore pressures. In Nigeria, millions of dollars are spent annually in importing barite to serve this purpose. However, there exists large reserves of weighting materials such as barite, hematite, dolomite, calcite, ilmenite in Nigeria hence the need to investigate the suitability of these materials as substitute for imported …
Published in Journal of Materials & Metallurgical Engineering · Vol. 10, Issue 1, 2020 · pp. 39–48 Read article
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Heavy Fermions to the Scheme from Semimetals
Abstract: This article is a study about heavy Fermions to scope strange and unknown features of scattering accounted to conduction electrons in the metal. Nucleons generated by heavy metal compounds are named heavy fermions. These generate from magnetic impurities that are present in the matter as unusual distribution in particulate forms. Parameter of quasi-crystal lattice instability of these compounds has significance in response to behave as non-Fermi liquids affected under magneto-transport. …
Published in Journal of Materials & Metallurgical Engineering · Vol. 11, Issue 2, 2021 · pp. 15–22 Read article
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Analysis of Heavy Metal in Industrial Soil Through Atomic Absorption Spectroscopy and its Relationship with Some Soil Properties
Abstract: The disease of soil is a premise of peril to the strength of individuals at diverse stages as well as towns and urban areas. Overwhelming metals unconstrained as poisonous effluents from smelters are dumped into close by biological system and are connected with wellbeing danger. Modern industrialization is main root to release different overwhelming metals which spreads to the dirt as aero soils, particulate issue, residue, effluents and strong waste. …
Published in Journal of Materials & Metallurgical Engineering · Vol. 11, Issue 2, 2021 · pp. 29–37 Read article
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Design conceptualization and computational analysis of cryogenic engine nozzle -ABYOM
Abstract: The main purpose of this paper is to design a cryogenic engine nozzle with specified dimensions using CATIA V5 software and analyze the nozzle using ANSYS software. The realizable k-ε viscous model was used for calculation and the Hydrogen (H2) had retained as an ideal gas. The CFD simulations were done on the nozzle to find the pressure, density, velocity, and temperature. In the graph, there are 500 points streamlined …
Published in Journal of Materials & Metallurgical Engineering · Vol. 12, Issue 2, 2022 · pp. 14–23 Read article
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A Study of Flyback Microinverter Topologies for Photovoltaic Applications
Abstract: AbstractThe microinverter system plays an imperative role in photovoltaic applications. Nowadays a central inverter system is substituted by a microinverter. The flyback inverter has the following advantages such as transformer separation, high voltage step-up ratio, low volume, high reliability, and provides high efficiency and relatively simple control. This paper proposes a collation of different flyback inverter topologies operating under various control schemes. A single phase current source inverter with hybrid …
Published in Journal of Microelectronics and Solid State Devices · Vol. 5, Issue 2, 2018 · pp. 1–10 Read article
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Influence of Graded Channel on Performance of Symmetric Double Material Gate Insulator FDSOI MOSFET
Abstract: Abstract: In this paper, we investigate the effect on the linearity, analog and RF performance of graded channel in case of hetero-gate-dielectric FDSOI MOSFET with higher doping at source end and low doping at drain end. The major figure of merits (FOMs) studied are on-state drive current (ION), transconductance (gm), total gate capacitance (Cgg), cut-off frequency (fT), higher order derivative of transconductance (gm’, gm’’), intermodulation distortion (IMD3) and third- order …
Published in Journal of Microelectronics and Solid State Devices · Vol. 6, Issue 1, 2019 · pp. 12–17 Read article
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Fuzzy Based Power Flow Control in Grid Connected Hybrid PV-PEMFC Microgrid System
Abstract: This paper evaluates the performance of a fuzzy based power flow control of grid connected hybrid system. The hybrid system composed of a Photovoltaic (PV) array and a Proton exchange membrane fuel cell (PEMFC) is considered. The photovoltaic (PV) array normally uses a maximum power point tracking (MPPT) technique to continuously deliver the highest power to the load when there are variations in irradiation and temperature occur, which make it …
Published in Journal of Microelectronics and Solid State Devices · Vol. 3, Issue 1, 2016 · pp. 20–29 Read article
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Human Mouse Based on MEMS
Abstract: The increase in human machine communications in our daily lives has made user crossing point technology with time more important. Physical gesticulations as intuitive terminologies will greatly ease the communication process and empower humans to more naturally grasp computer or machines. Gesture recognition has been a research area which established much courtesy from many research communities such as human computer interaction and image processing.
Published in Journal of Microelectronics and Solid State Devices · Vol. 2, Issue 3, 2015 · pp. 8–15 Read article
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Speed Control of DC Motor with High Accuracy
Abstract: The aim of developing this project is to control the speed of DC motor. The main advantage in using a DC motor is that the speed-torque relationship can be varied to almost any useful form. To achieve the speed control an electronic technique called pulse width modulation (PWM) is used which generates high and low pulses. These pulses vary the speed in the motor. For the generation of these pulses …
Published in Journal of Microelectronics and Solid State Devices · Vol. 2, Issue 3, 2015 · pp. 29–37 Read article
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Criticality Risk Assessment during Transportation and Storage of MTR Spent Fuel Elements
Abstract: Abstract This study aims to evaluate the criticality condition during transporting the spent fuel elements from the temporary storage to the permanent storage by using a Latin American cask. The cask was developed to transport the material testing reactor (MTR) fuel element type. MCNP5 code was used to calculate the criticality, expressed in terms of the neutron multiplication factor (k-effective), for normal and accidental situations using 21 fresh fuel elements. …
Published in Journal of Nuclear Engineering & Technology · Vol. 9, Issue 1, 2019 · pp. 1–6 Read article
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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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Worker Radiation Exposure during Transportation of Irradiated LEU Targets in a Typical MTR Reactor
Abstract: The paper estimates the radiation dose exposure for the worker in the second Egyptian research reactor ETRR-2 during the process of transporting the irradiated low enriched uranium LEU plates from the core to the hot cell. The aim of estimating the radiation doses distribution is determining the exposure dose for the worker during the transportation process as a safety point of view. In order to estimate irradiated LEU plates radiation …
Published in Journal of Nuclear Engineering & Technology · Vol. 10, Issue 3, 2020 · pp. 48–51 Read article
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Execution of a Large Engineering Project in an R&D Institution- Some Experiences
Abstract: Steam Generator Test Facility (SGTF) was set up mainly to validate the design of the steam generator of the Prototype Fast Breeder Reactor (PFBR). PFBR is a power reactor of 500 MWe after the successful Fast Breeder Test Reactor (FBTR). FBTR was built in collaboration with French Atomic Energy Commission (CEA). It was similar to the 40 MWt Rapsodie reactor but had SG modules of the Phenix reactor design in …
Published in Journal of Nuclear Engineering & Technology · Vol. 12, Issue 3, 2022 · pp. 27–35 Read article
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Power Generation using Photovoltaic System with MATLAB Simulink
Abstract: The issues of decreasing natural resources, the ensuing environmental repercussions, and the increasing demand for new energy resources have been actively investigated in recent years [13], partly because energy resources and their use will be a key concern of this century.Over the past ten years, grid-connected photovoltaic (PV) power systems have experienced phenomenal growth. Growing public awareness of climate change, tax advantages and rebates, and the falling cost of solar …
Published in Journal of Nuclear Engineering & Technology · Vol. 13, Issue 3, 2023 · pp. 36–42 Read article
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Numerical Prediction of Shear Modulus of Multi-Layer PUF Cored Sandwich Composites
Abstract: The present numerical investigation was mainly concerned with the evaluation of apparent shear modulus (Gc) of multi-layered polyurethane foam cored sandwich beams using a novel approach through the medium of general purpose program i.e. FEM/ANSYS. Aiming to the goal, three-point bending analysis was performed on sandwich beam models made up of composite face sheets and multi-layer polyurethane foam cores of different layer densities. Finite element models of sandwich beams were …
Published in Journal of Polymer & Composites · Vol. 5, Issue 3, 2017 · pp. 53–61 Read article
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A Review on Hole Making in Carbon Fiber Reinforced Plastic Laminates
Abstract: AbstractThe existence of fiber reinforced plastic (FRP) laminates in the world since 1940s, and its application is till date growing continuously. The research papers published in this field focused on the manufacturing of laminates to its final uses. The FRPs can be manufactured by various processes, but its assembly of laminated product required a hole. Hole in laminate may be produced by means of conventional or unconventional machining. Major attention …
Published in Journal of Polymer & Composites · Vol. 4, Issue 2, 2016 · pp. 44–51 Read article
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Simulation and Experimental Studies on the Effect of Injection Moulding Parameters on Tensile Properties of ABS Thermoplastic Specimen
Abstract: AbstractThe injection moulding process is the most widely used method of manufacturing Engineering thermoplastics. Thermoplastic blends and composites are suitably replacing metals and ceramics in most circumstances. This trend is mainly due to the versatility and compatibility of the injection moulding process. However, the injection moulding conditions has a significant impact on the aesthetic and functional characteristics of the final product as the flow induces substantial variation in the properties …
Published in Journal of Polymer & Composites · Vol. 3, Issue 2, 2015 · pp. 1–10 Read article