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1978 articles for “Al 7075 + 7.5%SiC” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Optical and Microstructural Changes in 5(6)-Carboxyfluorescein Doped PVA
Abstract: AbstractThe effect of 5(6) Carboxyfluorescein dye on microstructural and optical properties of a Poly(vinyl alcohol) (PVA) have been studied by using FTIR and UV-Visible absorption techniques. FTIR spectral result shows the possible interaction between the dye and PVA. The UV-Visible spectra shows three absorption bands (around 227nm, 310nm and 450nm) and from the observed optical band edges in the UV-Visible spectra, three optical band gaps and three activation energies for …
Published in Journal of Polymer & Composites · Vol. 4, Issue 3, 2016 · pp. 45–51 Read article
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Effect of High-Shear Mixing on Alignment of Carbon Nanofiber/Epoxy Nanocomposites
Abstract: AbstractOne of the major technological issues limiting widespread use of epoxy polymer nanocomposites containing carbon nanofibers is processability, where the dispersion or alignment of the nanofibers is crucial to performance of the composite. Poor dispersion of the nanofibers can lead to deterioration in properties, while aligning them affords the opportunity to maximize properties in a given direction. The authors have recently investigated the effect of high-shear mixing as a potential …
Published in Journal of Polymer & Composites · Vol. 2, Issue 1, 2023 · pp. 9–18 Read article
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Mud Acid Effect on Fines Migration Problem Using a Newly Developed Al/Zr-Based Clay Stabilizer (A): Mitigation Can Happen
Abstract: Sandstone reservoirs exhibit severe fines migration problems subsequent to conventional mud acid (HCl: HF) treatments. The acid treatment proved to be effective for a relatively short period of time, with a sudden production decline owing to either that mud acid spent rapidly in close proximity to the wellbore, causing clays to migrate into the acidized area and re-plug the formation; or that the mud acid system actually weakens the structure …
Published in Journal of Petroleum Engineering & Technology · Vol. 5, Issue 3, 2015 · pp. 11–29 Read article
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Fitting Relative Permeability’s Curves Based on Laboratory Production Data for A Thermal Composite Core Flooding Experiment
Abstract: Numerical simulators are effective tools for an adequate understanding of models geological and dynamic properties under which enhanced oil recovery techniques are investigated. Core flooding experiments are usually conducted for calibrating simulated rock and fluid properties against actual test results at micro-scales, and for further scaling up processes to the reservoir scale. In this paper, laboratory experiments data were used as input for a numerical simulator to study the effect …
Published in Journal of Petroleum Engineering & Technology · Vol. 9, Issue 3, 2019 · pp. 41–56 Read article
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Polystyrene Plastic Waste into Liquid Fuel Using Silica-Alumina Catalyst, Extracted from Rice Husk
Abstract: Catalytic Pyrolysis of Polystyrene (PS) into fuel like products using silica alumina catalyst that was extracted from rice husk was investigated over temperature range of 430–470°C. The output of catalytic pyrolysis was liquid oil, solid residues (char) and gaseous fraction. The product yields as a function of temperature, time and catalyst amount were studied. High conversion of liquid (48.8%) was achieved at 430 and 450ºC in the presence of 12.5 …
Published in Journal of Petroleum Engineering & Technology · Vol. 10, Issue 3, 2020 · pp. 15–31 Read article
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Operation of isolated DFIG with Modified P&O MPPT Algorithm
Abstract: AbstractThis paper demonstrates validation of modified control algorithm for MPPT (Maximum Power Point Tracking) for Doubly Fed Induction Generator (DFIG) based WECS (Wind Energy Conversion System). The main objective is maximizing the wind energy by optimizing the losses. MPPT algorithm implementation is done by performing control of duty cycle of DC to DC boost converter. This method establishes effective system for wind energy utilization and reduces rating for control. The …
Published in Journal of Semiconductor Devices and Circuits · Vol. 7, Issue 1, 2020 · pp. 29–33 Read article
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A Systematic Review of IoT-based Heart Attack Detection Algorithms and Techniques
Abstract: Body temperature has an impact on heart rate, making it a crucial signal that should be watched in order to identify any abnormalities early enough to receive treatment. There is requirement for a small, portable gadget that can be used for monitoring and controlling key indicators on a daily basis. The purpose of this project is to create a device that continuously monitors vital signs while also taking temperature and …
Published in Journal of Semiconductor Devices and Circuits · Vol. 10, Issue 1, 2024 · pp. 1–7 Read article
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Studies on the Electrical Characteristics of AlGaAs/GaAs High Electron Mobility Transistors
Abstract: AbstractIn this work, total 5722 individual simulation outputs are reported. The effects of drain voltage, gate voltage, aluminium mole fraction, and gate length on drain current are studied in AlGaAs/GaAs high electron mobility transistors (HEMTs). The linear region and saturation region are prominent in each drain characteristic curve. The drain current reduces in the structure of larger gate length. This work is useful to fabricate the HEMT based biomedical sensors. …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 5, Issue 3, 2018 · pp. 30–40 Read article
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Applications of Shape Memory Alloys: A Review
Abstract: Shape memory alloys (SMAs) impart a potential application in a wide range in micro- and nano-industrial world. Classic properties such as free recovery or pseudo-elasticity still needed further specifications in smart materials or micro-actuators applications. Nowadays, a primary goal is achieved that these materials offer a price-competitive advantage compared to other functional materials design. Among all types of functional SMAs, NiTi-based SMA attracted much attention in the rapidly growing field …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 2, Issue 2, 2015 · pp. 1–7 Read article
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Deposition of Antimony Trioxide on the Composite Surface to Increase Its Flame Retardancy
Abstract: In the present work, the preparation method of antimony trioxide and its thermal properties were extracted, as well as identified the manufacturing method to form an insulation layer from this oxide as a thickness of the covering layer (2 mm), deposited on the composite material consisting of unsaturated polyester resin and glass fiber which acts as a paste and take for the material to the insulation and flame retardant oxide. …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 2, Issue 1, 2015 · pp. 1–3 Read article
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Corrosion Inhibition Effect of 1-(4-Methoxy-phenyl)-3-(5-phenyl-1,3,4-oxadiazol-2-yl) propan-1-one Inhibitor for Mild Steel in 1 M HCl Solution
Abstract: The environmental friendly 1-(4-Methoxy-phenyl)-3-(5-phenyl-1,3,4-oxadiazol-2-yl) propan-1-one (A1) inhibitor is synthesized and their corrosion inhibition for Mild Steel in a 1 M HCl solution was studied using weight loss methods, electrochemical measurements, and the surface morphology of mild steel with and without inhibitor were studied using scanning electron microscopy (SEM) analysis. As the concentration of the inhibitor was increased the inhibition efficacy of 1-(4-Methoxy-phenyl)-3-(5-phenyl-1, 3, 4-oxadiazol-2-yl) propan-1-one was also enhanced and on …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 8, Issue 2, 2021 · pp. 31–37 Read article
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Comparative Analysis of Different SRAM Cells Architecture at 70 nm
Abstract: There are severe constraints which affect the real time operation of SRAM cells. With increasing demand of device scaling, the performance parameters of SRAM cells are affected. Our main purpose is to maintain performance of memory cells in real time operation. Here, we considered three basic parameters stability, leakage current and delay for compression of various SRAM cell architectures. In this paper, we considered conventional 6T, asymmetric 7T, asymmetric 8T …
Published in Journal of VLSI Design Tools and Technology · Vol. 8, Issue 2, 2018 · pp. 33–41 Read article
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Area and Power Improvement with New Initial Ordering Method Combined with Sift Algorithm for BDD Mapped Circuits
Abstract: Digital circuits are the important elements in almost every electronic design. As the size of electronic ICs are shrinking rapidly, the minimization of the circuit elements and power consumption became more focused area of VLSI research. In this paper, we have introduced a new method for reduction of area and power of binary decision diagram mapped circuits. Binary decision diagrams are used to represent digital functions in VLSI CAD. It …
Published in Journal of VLSI Design Tools and Technology · Vol. 8, Issue 2, 2018 · pp. 67–71 Read article
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Implementation of Edge Detection Algorithm on FPGA using Hardware Software Co-simulation
Abstract: Image processing is one of the most booming research areas in modern days. Every modern device incorporates image processing in one or the other way. Most of the image processing algorithms start with basic edge detection. The performance of the edge detection can be improved using state of art FPGA devices. Implementation using field programmable gate arrays (FPGA) speeds up the processing of edge detection algorithms. The paper discusses the …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 1, 2016 · pp. 55–61 Read article
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Design of FPGA Based ALU Using Reversible Logic Gates
Abstract: Reversible or information misfortune less circuits has applications in computerized signal handling, correspondence, PC design and nanotechnology. Reversible technique is utilized to minimize heat that happens in traditional circuits by keeping the loss of data. This paper proposes a reversible configuration of an ALU. This ALU comprises of eight operations, five are of arithmetic category and three are from logical category operations. An arithmetic operations incorporate add, sub, increase by …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 3, 2016 · pp. 15–21 Read article
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Drinking Water Problems and Possible Alternatives in Coastal Region of Bangladesh: A Case Study
Abstract: Safe drinking water for the coastal areas of Bangladesh has become a big challenge. Arsenic adulteration and salinity intrusion in surface water body has accelerated the scarcity of water in the coastal region. As situation ameliorating and also investment for water-borne diseases is decreasing, it becomes the major threat for a third-world country like Bangladesh. There are lots of alternatives for water supply but there are also a huge number …
Published in Journal of Water Resource Engineering and Management · Vol. 1, Issue 3, 2014 · pp. 24–34 Read article
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Finding optimal solutions for an economic load dispatch problem considering thermal, solar and wind power plants by using salp swarm and northern goshawk optimization algorithms
Abstract: This paper proposes a new variant of the traditional economic load dispatch (NELD) problem. Unlike traditional economic load dispatch (TELD), generating sources in NELD are diversified with different types, including thermal, wind, and solar power plants. The reduction of total fuel consumption from thermal power plants is the main objective of this study. The Salp swarm algorithm and Northern Goshawk optimization are utilized to find the optimal solution for NELD. …
Published in Recent Trends in Electronics Communication Systems · Vol. 9, Issue 3, 2022 · pp. 1–11 Read article
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Optimal Selection of Control Factors in Abrasive Water Jet Cutting of Titanium Grade 5
Abstract: The Technique for Order Preference by Similarity Ideal Solution (TOPSIS) approach was used to carry out optimization studies on an abrasive water jet (AWJ) cutting process with multiweapon characteristics based on Multi Criteria Decision Making Methodology (MCDM). The process parameters water jet pressure, traverse rate and standoff distance are optimized with multiresponse characteristics, including the depth of penetration (DOP) smooth zone (SR) . The optimized results obtained from this approach …
Published in Recent Trends in Fluid Mechanics · Vol. 9, Issue 1, 2022 · pp. 38–42 Read article
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Minimization of Energy Utilization in Wireless Sensor Network using Nature-Inspired Algorithm to maximize the overall network lifespan: A Review
Abstract: Wireless Sensor Networks is the most driving innovation in the world which makes it conceivable to collect the installed frameworks which can be typically carried in the pocket with the comparative capability of a Desktop Computer. It comprises of self-supervising battery controlled gadgets referred to as hubs which go about as a transducer. The hubs are sufficiently canny to detect, figure and transfer the information. While the hubs are battery …
Published in Recent Trends in Sensor Research & Technology · Vol. 8, Issue 2, 2021 · pp. 30–35 Read article
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Comparative Study of Machining Parameters on Electrical Discharge Machining of Inconel 718 using Copper and Copper-Tungsten Electrode
Abstract: The present scenario in all the manufacturing industries is to make a priority list to cope up the challenges imposed by the superior materials like alloys, ceramics and composite materials which have difficulty in machining. In this study, comparison of experimental results which is found by optimization of machining parameters on material removal and tool wear rate along with two different electrodes material such as copper and copper tungsten for …
Published in Trends in Electrical Engineering · Vol. 8, Issue 2, 2018 · pp. 46–53 Read article