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983 articles for “DRA”
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Surface Characterization of Heat Treated Tool Steel after W-EDM
Abstract: In order to meet the increasing demands of performance and reliability of sophisticated components, quality of a machined surface plays an important role. In this research paper, it has been tried to investigate the effect of heat treatment on the surface quality of AISI D2 tool steel after Wire-Electro Discharge Machining (W-EDM). The test specimens were prepared by milling and then carrying out hardening and tempering in different ways and …
Published in Journal of Materials & Metallurgical Engineering · Vol. 2, Issue 1-3, 2012 · pp. 178–184 Read article
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Establishing Empirical Relationships to Predict Grain Size and Hardness of Pulsed Current Microplasma Arc Welded Inconel 625 Sheets
Abstract: Nickel alloys have gathered wide acceptance in the fabrication of components, which require high temperature resistance and corrosion resistance, such as metallic bellows used in expansion joints in aircraft, aerospace and petroleum industry. In case of single pass welding of thinner sections of this alloy, pulsed current microplasma arc welding was found beneficial due to its advantages over the conventional continuous current process. The paper focuses on developing mathematical models …
Published in Journal of Materials & Metallurgical Engineering · Vol. 1, Issue 1-3, 2011 · pp. 37–47 Read article
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Adoption of Heat Recovery Technology in Sintering Process to Reduce Carbon Imprint
Abstract: India is the second largest steel producer in the world after China. The 2017 National Steel Policy of India set out the ambitious plan of 250 MT steel production and per capita consumption to around 160 kg by 2030. The dominant iron-making route is blast furnace (BF), which is an energy-intensive process based on fossil fuel consumption. The steel industry contributes around 7% of all greenhouse gas (GHG) emissions. India …
Published in Journal of Materials & Metallurgical Engineering · Vol. 12, Issue 3, 2022 · pp. 38–44 Read article
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Computer Modeling of Organic Thin Film Transistors (OTFTs) using Verilog-A
Abstract: AbstractOrganic electronics has drawn considerable attention of the researchers with organic thin film transistors (OTFTs) as key components for various applications. Compared to the silicon industry where public models are well defined and commonly used to provide designers with a relative good description of any process, organic devices are still lacking for their complete device models that can fully describe their electrical characteristics. Therefore, compact model development for OTFTs is …
Published in Journal of Microelectronics and Solid State Devices · Vol. 5, Issue 1, 2018 · pp. 1–7 Read article
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Implementation of FIR Filter with Reverse Converter based RNS Kogge–Stone Adder
Abstract: AbstractLow power very large scale integration (VLSI) circuits are pertinent for designing of steep overall performance and adjustable devices. In current technology VLSI plays a vital role to reduce power consumption and delay. In analog to digital converter process, adder plays a crucial role. The authority of nonviolent issue is increasing regularly because of changing that a way, packaging and cooling cost, transportable route of motion and reliability. This freebie …
Published in Journal of Microelectronics and Solid State Devices · Vol. 5, Issue 2, 2018 · pp. 34–43 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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Implementation of 16-Bit Qam Using Texas Instruments
Abstract: In this paper, an implementation of 16-bit QAM is performed where there is a high use of Digital Video Broadcasting Cable (DVB-C), as there is increase in the usage the bandwidth requirement for each user is mutually increasing. Due to this, there is spectral congestion caused and drastic improvements have been taken in the field of communications. QAM multilevel modulation can offer an attractive solution to current bandwidth restriction in …
Published in Journal of Microelectronics and Solid State Devices · Vol. 2, Issue 2, 2015 · pp. 14–20 Read article
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Scope of Micro Embedded Sensors in Mobile Technology
Abstract: This study mainly deals with the importance of Micro Embedded Sensors that are used in our day-to-day life. The study initially gives the information of application, working principle, uses of sensors in specific fields and its further advancement in technology. Since there is a drastic change in the technology used by people in their routine, the main reason was by reducing the size of the techno products used by them, …
Published in Journal of Microelectronics and Solid State Devices · Vol. 8, Issue 1, 2021 · pp. 9–13 Read article
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A Novel Genetic Algorithm For Biomolecular Interaction Studies
Abstract: The examination of recent developments in genetic algorithms is covered in this work. The genetic algorithms chosen for analysis are those that the scientific community finds to be of considerable interest. The fresh and demanding researchers will benefit from this review's ability to provide a broader perspective on genetic algorithms. The popular algorithms' benefits and drawbacks, as well as how they are implemented, are presented. In order to aid novice …
Published in Journal of Microelectronics and Solid State Devices · Vol. 9, Issue 2, 2022 · pp. 22–28 Read article
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Atomic Reactors and Use of Heat Pipes
Abstract: AbstractNuclear power and coolant purpose in passive space power systems have evaluated PWC – 11 niobium base alloys (Nb – 1Zr – 0.1 C) to be one of suitable alloy system. High temperature resistant but easy to oxidize alloy have considered to be important from comparatively higher strength as observed in various heat treatments. Oxygen availability in space has contaminated from material associated to construction. Design compatibility and versatile use …
Published in Journal of Nuclear Engineering & Technology · Vol. 9, Issue 2, 2019 · pp. 24–32 Read article
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Experimental Testing and Ply Wise Strength 0°-45°-0° Investigation of Multi-orientation Carbon Fiber Specimen by Using FEA and UTM
Abstract: Synthetic composites have higher strength to weight ratio and are extensively used in industrialapplications. Carbon fibers have extensively high tensile strength. Most of the composites haveorthotropic properties and their strength varies as per orientation. Laminar having differentply orientations have different properties and strengths. Hence, to enhance strength of carbonfiber specimen reducing layer wise damage becomes up most important. It is unimaginable toexpect to examine the layer insightful harm of each …
Published in Journal of Nuclear Engineering & Technology · Vol. 10, Issue 3, 2020 · pp. 29–37 Read article
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Application of Bloch Analysis to Evaluate Activation of Energy of Irradiated Polyacrylonitrile
Abstract: AbstractPolyacrylonitile is one of the important polymers of technical and scientific importance. During its usage, the polymer is exposed to different types of radiations, limiting its use. In order to investigate the processes involved in radiation effect in PAN, various efforts have been made. In this context, the authors have also made an attempt to investigate radiation induced process in PAN by electron spin resonance (ESR) technique. ESR spectra of …
Published in Journal of Polymer & Composites · Vol. 4, Issue 2, 2016 · pp. 25–28 Read article
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Potential of Midrib of Cocos nucifera Leaf for Reinforcement of Plastics
Abstract: AbstractCoconut palm (Cocos nucifera) is an abundant crop of tropical areas. In the present work, mechanical properties of midrib of coconut palm leaf as tensile strength, tensile modulus, flexural strength, flexural modulus impact strength and elongation at break is experimentally determined and compared with other fibers. Single-fiber pull-out test is conducted to determine critical embedded length and interfacial adhesion between fiber and matrix for reinforcement in polyester resin. Tensile test …
Published in Journal of Polymer & Composites · Vol. 3, Issue 1, 2015 · pp. 25–32 Read article
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A Review on Metal Additive Manufacturing Techniques and its Applications
Abstract: Additive manufacturing is a manufacturing technique that focusses on producing the parts from the computer aided engineering drawings obtained from detailed modelling. The advances in additive manufacturing has led to the development of essential technological innovations with state of the art research prospectus which facilitates the development of parts that are complex to manufacture using other manufacturing technologies. The current paper aims to provide a review of the process characteristics …
Published in Journal of Polymer & Composites · Vol. 7, Issue 3, 2019 · pp. 24–31 Read article
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Influence of FEF (N550) Carbon Black on Rheological and Physico-mechanical Properties of SBR Vulcanizate for Tyre Application
Abstract: This study aims to investigate the synergistic effect of Fast extrusion furnace black on the rheological, surface morphological and physico-mechanical properties such as tensile strength, hardness and specific gravity of styrene-butadiene synthetic rubber composite. SBR is an elastomer which is an important sort of synthetic rubber. It is a copolymer whose molecular structure primarily consists of organic compound styrene and butadiene chain. Fast extrusion furnace black and high abrasion furnace …
Published in Journal of Polymer & Composites · Vol. 10, Issue 3, 2022 · pp. 48–58 Read article
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Closed Loop Control of Multi Level Inverter Tied with 415 V AC Source Using SV-PWM for Renewable Energy
Abstract: In this work, 415 V AC source is interfaced with three-level diode clamped inverter in which renewable energy source is used as a DC source, solar energy is used which is most popular renewable energy source. The obtained DC from the solar irradiation is fed to MPPT (Maximum Power Point Tracking) to utilize voltage at maximum power (DC). The perturb and observe technique is used in this work to track …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 1, 2016 · pp. 55–65 Read article
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Design and Simulation of Phase-Integral Switching Control
Abstract: The Class of ac power controllers consists of switching regulator which connects and disconnects the load to the supply according to the required power. The two voltage control techniques for regulating the power flow in a.c. voltage controllers are Phase Control and Integral Cycle Control (ICC). Phase control undergoes the limitation of harmonic injection while integral cycle control provides control in integral values only. In the proposed method, both the …
Published in Journal of Power Electronics and Power Systems · Vol. 2, Issue 3, 2012 · pp. 8–13 Read article
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Software and Hardware Implementation of Quasi z Source Inverter in DC-DC Converter with DC Motor as Load
Abstract: DC/DC power converters are employed in applications like telecom, industrial, automotive, military, aerospace and motor drives. The dc/dc converter market is forecast to grow at a strong rate to $ 4.3 billion by 2016. The primary factor limiting the widespread application of low voltage producing renewable energy sources to motor load is interfacing of converter system. The traditional voltage source inverter (VSI) cannot be dealt without overrating of inverter because …
Published in Journal of Power Electronics and Power Systems · Vol. 5, Issue 3, 2015 · pp. 97–107 Read article
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Design and Simulation of Fuzzy Logic Based Speed Control for an SPWM Inverter-fed Induction Motor Taking Core Loss and Stray Load Losses into Account
Abstract: Speed and torque of an induction motor need to be controlled in order to achieve smooth control application. Field oriented control aids this factor and enables independent control of speed and torque by establishing an independent relationship between motor parameters. This complex relationship is developed due to consideration of core loss and stray load loss while modeling an induction motor. These two negligible but important parameters are neglected in most …
Published in Journal of Power Electronics and Power Systems · Vol. 5, Issue 3, 2015 · pp. 17–24 Read article
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Detecting Winding Movement by Fuzzy Logic for Frequency Response of Power Transformer
Abstract: Power transformers are basically one of the most efficient devices that are used in Power Plant or in any substation. Its maintenance is bit some tedious but has to be done to diagnose any severe fault that may damage the transformer. Sweep Frequency Response Analysis (SFRA) is used to detect any winding or core deformation in transformer that would arise during transportation, due to severe short circuits or due to …
Published in Journal of Power Electronics and Power Systems · Vol. 5, Issue 3, 2015 · pp. 25–34 Read article