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1977 articles for “Responses” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Experimental Investigation of Process Parameters While Milling of AA8011 Using MCDM/MADM Method-TOPSIS
Abstract: This paper presents in-depth and comprehensive approach for optimizing the machining parameters in milling of wrought alloy AA8011 using a MCDM/MADM method called TOPSIS. The present work is carried out in three phases; in the first phase the orthogonal array L27 design is prepared using Minitab software by considering various milling parameters such as speed, feed and depth of cut at three different levels. In the second phase, milling operations …
Published in Journal of Mechatronics and Automation · Vol. 5, Issue 1, 2018 · pp. 11–16 Read article
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Optimizing Fusion Zone Grain Size, Hardness and Tensile Strength of Micro Plasma Arc Welded Titanium (Ti-6Al-4V) Alloy Using Grey Relational Analysis
Abstract: In the present work, Titanium (Ti-6Al-4V) alloy sheet of 0.5 mm thick is butt welded using Micro Plasma Arc Welding. Welding input parameters like peak current, base current, pulse rate and pulse width are considered and output responses like fusion zone grain size, hardness and ultimate tensile strength of the welded joint are considered. Taguchi L25 orthogonal matrix is adopted by considering four factors and five levels of weld input …
Published in Journal of Mechatronics and Automation · Vol. 5, Issue 2, 2018 · pp. 21–33 Read article
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Optimization of WEDM Process Parameters Using a Hybrid Multi-Criteria Decision Making Approach
Abstract: The effectiveness of the manufactured parts is typically measured by more than one performance characteristics. Hence the manufacturing engineers frequently experience the difficulty in optimizing the multiple responses at a time. The present work is to explore the effect of wire electrical discharge machining (WEDM) process parameters in machining of Aluminum metal matrix composite (AMMC). The multiple performance characteristics of material removal rate (MRR) and surface roughness (Ra) are optimized …
Published in Journal of Mechatronics and Automation · Vol. 5, Issue 3, 2018 · pp. 24–30 Read article
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Introduction to Multiphysics Simulation for Integrated PCB Design and Operation AI Environment Analysis on Behalf of EMI/EMC
Abstract: Modern trend of PCB (Print Circuit Boards) designing are highly complex and unpredictable. User requirements make the PCB compact and faster nowadays. To make the PCB compact and faster in nature, multidimensional PCBs are trending nowadays. Although multidimensional PCBs are better in size and speed but also have some irrelevant issues like resonance, crosstalk, power/ground bounce and simultaneous switching noise (SSN). All irrelevant issues are responsible for EMI (Electromagnetic Interference). …
Published in Journal of Mechatronics and Automation · Vol. 6, Issue 1, 2019 · pp. 31–36 Read article
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Optimization of Turning Parameters of EN-36 for Material Removal Rate and Tool Life based on Taguchi and RSM Method
Abstract: In this experimental study the effect of cutting parameters on material removal rate (MRR) and tool wear rate (TWR) during turning of EN-36 material on turning machine is determined. In this work, firstly, all the cutting parameters namely, spindle speed (SS), feed rate (FR) and depth of cut (DOC) are designed by using suitable orthogonal array in Taguchi method. The experimental studies were accompanied under the varying spindle speed, feed …
Published in Journal of Mechatronics and Automation · Vol. 3, Issue 1, 2016 · pp. 14–24 Read article
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Application of RSM on Performance Characteristics in Turning of Hard Porcelain Material
Abstract: This paper presents the effect of cutting parameters on Bending and Voltage during turning of Hard Porcelain Material on CNC turning machine (SINUMERIK802D). In this work, all the cutting parameters namely, Spindle speed, feed rate, angle of cut and depth of cut are modelled using Response surface methodology (RSM). The impact of all the cutting parameters on the Response parameters (Bending and Voltage) is examined. Finally, the result of developed …
Published in Journal of Mechatronics and Automation · Vol. 2, Issue 2, 2015 · pp. 39–49 Read article
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Comparison Between Theoretical, Analytical and Experimental Vibration Analysis Method and Different Circular Tile Cutter by Using FFT and ANSYS
Abstract: Circular cutters with uniform radial cracks are extensively used in the cutting processes. Unwanted noise, vibration and accidental failure associated with the cutting process have become an important economic and technological problem in the industry. The knowledge of natural frequencies of components is of great interest in the study of response of structures to various excitations. Hence, it is important to study a circular tile cutter with central hole, which …
Published in Journal of Mechatronics and Automation · Vol. 2, Issue 3, 2015 · pp. 31–42 Read article
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Design and Analysis of Microstrip Band Stop Filter with Modified Circle and Dumbbell Shape Ground Structure
Abstract: In this proposed paper the performance of Band stop filter with modified ground structure is analyzed in this specific work; the modified ground structure includes a circle and dumbbell etched shapes in ground plane. Parameters of the proposed configuration were calculated at the cut off frequencies of f1=1 GHz, f2=1.62GHz and also proposed designs having substrate height of 1.6 mm, loss tangent of 0.02 and dielectric constant of 4.4. Results …
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 2, 2015 · pp. 26–31 Read article
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Improved Unified Power Quality Conditioner Design and Numerical Simulation For Power Quality Improvement
Abstract: Harmonic currents can distort the waveform voltage, resulting in a weak signal. There is also an increase in the number of loads requiring enough sinus tension to function properly. As electronic devices become more power-sensitive, people are becoming increasingly interested in power conditioning solutions. Therefore, if the amount of electricity being generated falls below a certain threshold, some type of compensation must be provided. Unified Power Quality Controller (UPQC) is …
Published in Journal of Microwave Engineering and Technologies · Vol. 8, Issue 3, 2021 · pp. 52–60 Read article
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Statistical Analysis on Weld Bead Geometry of Pulsed Current Micro-plasma Arc Welded AISI 316Ti Austenitic Stainless Steel Sheets
Abstract: Micro-plasma arc welding (MPAW) uses low amperage to join sheets, where the thickness is low, such that they can be used for manufacturing metal bellows, metal diaphragms etc. In the present work, pulsed current MPAW is used for joining 0.3 mm thick AISI 316Ti austenitic stainless steel sheets. Peak current, base current, pulse rate and pulse width are considered as input parameters and weld bead geometry parameters namely front width, …
Published in Journal of Materials & Metallurgical Engineering · Vol. 6, Issue 2, 2016 · pp. 20–37 Read article
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Prediction and Optimization of Laser Transformation Hardening Parameters of Unalloyed Titanium Using RSM
Abstract: The optimization abilities in Design-expert software were used to optimize the laser phase transformation hardened bead profile parameters, i.e., to maximize hardened bead width (HBW) and to minimize, the heat input (HI), hardened depth (HD) and angle of entry of hardened bead profile (AEHB) in continuous wave (CW) Nd:YAG laser transformation hardening of unalloyed titanium sheet with 1.6 mm thickness. The mathematical models were developed from Response Surface Methodology (RSM) …
Published in Journal of Materials & Metallurgical Engineering · Vol. 5, Issue 1, 2015 · pp. 1–11 Read article
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Al-MMC Foam: Synthesis and Characterisation
Abstract: Aluminium alloy composite foams are produced in the laboratory using TiH2-CaCO3 dual foaming agents. The density of the developed material varied along various cross sections. There exists a more pronounced variation in density along the direction of foaming. Compressive and tensile tests are performed on Aluminium Metal Matrix composite (Al-MMC) specimens of different relative density. The compressive stress-strain response of the material establishes their engineering utility in terms of their …
Published in Journal of Materials & Metallurgical Engineering · Vol. 1, Issue 1-3, 2011 · pp. 18–27 Read article
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Design Simulation and Implementation of a Microcontroller Based Electronic Notification System for Disease Surveillance
Abstract: Infectious disease outbreaks have been a challenge in the public health sector, and developing countries like Nigeria are not an exception; the rate of such outbreaks has risen within recent years. The recent re-emerging and new infectious disease outbreaks in Nigeria, including the Ebola virus disease and other epidemic-prone diseases, necessitate a rapid public health response. As a result, it becomes necessary to improve the current system for notifying and …
Published in Journal of Microelectronics and Solid State Devices · Vol. 9, Issue 2, 2022 · pp. 42–52 Read article
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Parametric Study of Twin Screw Extrusion for Processing Epoxy/Carbon Black Nanocomposites Using Orthogonal Array Technique
Abstract: AbstractThis paper presents the experimental investigation of the influence of process parameters of twin screw extrusion on the dispersion and electrical, thermal and mechanical properties of epoxy/CB nanocomposites. Four factors, namely, loading level of carbon black (0, 2, 4, 6, 8 and 10 wt%) in epoxy, screw speed (75, 100 and 125 rpm), temperature (5 °, 15 ° and 30 °C) and number of passes (5, 10 and 15) were …
Published in Journal of Polymer & Composites · Vol. 1, Issue 2, 2013 · pp. 15–26 Read article
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An Optimize Formulation to Synthesis of size Controlled Hydrophobic Starch Acetate Nanoparticles using Box-Behnken Design
Abstract: The best way to improve the overall performance of native starch is by chemical modification. In recent years, hydrophobically modified starch has attracted considerable attention for the design and manufacture of novel nanoparticulate drug delivery carriers. The purpose of this research was to synthesize hydrophobic starch nanoparticles (NPs) and to optimize process factors through the use of response surface methodology (RSM). The corn starch acetate (CSA) NPs was synthesized using …
Published in Journal of Polymer & Composites · Vol. 10, Issue 1, 2022 · pp. 32–54 Read article
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Thermally Trigged Self-Healing Smart Shape Memory Polymer Composite
Abstract: Temperature-responsive self-actuating PU/MWCNTs composites were prepared with micro-compounder through in-situ polymerization. For making of 1CNTPU composite sample 1 part per hundred multiwall Carbone nanotubes (MWCNTs) were reinforced into the neat polyurethane (PU) base matrix. Surface characterizations for pure and composite have studying by using Atomic Force Microscope (AFM), high resolutions Scanning Electron Microscopy (SEM). Properties like shape recovery, storage modulus, loss modulus, tensile stress, degree of hardness, and flexural stress …
Published in Journal of Polymer & Composites · Vol. 9, Issue 3, 2021 · pp. 10–18 Read article
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Exploring the Dual Functionality of Polypyrrole/Cobalt Sulphide Nanocomposite in Photocatalysis and Gas Sensing
Abstract: Cobalt sulphide nanomaterial was synthesized using the co-precipitation method, and chemical polymerization of polypyrrole (ppy) was performed in the presence of the synthesized cobalt sulphide nanomaterial for the preparation of nanocomposite. The synthesized ppy/cobalt sulphide nanocomposite was characterized by transmission electron microscopy (TEM), selected area electron diffraction (SAED), X-ray powder diffraction (XRD), Fourier transformation infrared spectroscopy, and UV-visible spectroscopy. The TEM micrograph revealed that the generated cobalt sulphide nanoparticles were …
Published in Journal of Polymer & Composites · Vol. 11, Issue 3, 2023 · pp. 72–85 Read article
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The Frequency Characteristics of Transformer Windings Considering the Separation-Dependence of the Inter-Turn Mutual Parameters
Abstract: The paper presents a direct method for the determination of the frequency characteristics of transformer windings. The dependence of both the inter-turn mutual inductances and capacitances on the separation between these winding turns is taken into consideration. From measured data available in the literature, a formula for this dependence is derived. The voltage and current distributions along the winding will be governed by two integro-differential equations in terms of the …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 3, 2016 · pp. 72–81 Read article
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Modeling of Transformer Windings having Non-uniform Inductance Distribution
Abstract: A direct analytical procedure for analyzing power transformer windings with location-dependent series inductance is presented. This dependence is typically introduced in order to take the inter-turn mutual inductive coupling into consideration. The paper addresses the frequency domain analysis conducted in the complex s- or the jω-domains. Results for the frequency-dependent winding’s input impedance with different treatments of the transformer’s neutral point will be available. The frequency characteristics including the resonance …
Published in Journal of Power Electronics and Power Systems · Vol. 4, Issue 3, 2014 · pp. 12–25 Read article
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Efficient Technique for Analyzing Non-Uniform Transformer Windings
Abstract: This paper addresses the electromagnetic transients and the frequency characteristics of non-uniform transformer windings exhibiting inter-winding mutual circuit parameters. The dependence of the winding inductances and capacitances on the location along the winding is incorporated in the governing Kirchhoff’s voltage and current equations with the voltages and currents as unknowns. These unknowns will then be determined through the application of algebraic solution techniques in order to get closed-form analytical voltage …
Published in Journal of Power Electronics and Power Systems · Vol. 11, Issue 3, 2021 · pp. 1–8 Read article