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320 articles for “Defect”
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Static and Dynamic Analysis for Optimum PZT Positioning and Optimum Voltage in a Delaminated Smart Composite Beam
Abstract: This paper conducts a comprehensive static and dynamic analysis of a delaminated composite beam with and without a piezoelectric layer making use of the principle of minimum potential energy. A new finite element model for composite laminate with delamination defect using cohesive zone method is developed using ANSYS APDL. A lead zirconate titanate (PZT) patch is embedded over the delaminated model following the results obtained from static analysis. The work …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 13–27 Read article
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Electrochemical Exfoliation of Graphene Oxide (GO) and Thermally Reduced Graphene Oxide (TrGO) Using Ecofriendly Reducing Agent as Cow Urine
Abstract: The Graphene oxide (GO), the reduced form of GO i.e. (rGO) with thermally reduced graphene oxide (TrGO), have concerned significant interest in various fields with their exceptional properties. We investigate the electrochemical exfoliation processes of GO and rGO to understand their structural and electrochemical behavior of GO and TrGO through various characterization techniques. The electrochemical exfoliation method offers a versatile and scalable approach for the mass fabrication of the materials …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 89–100 Read article
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Total Quality Management Initiatives for Enhancing the Performance of Manufacturing Companies: An Empirical Investigation
Abstract: Total quality management is the industrial management approach of reducing defects by improving the processes. This study has been carried out in SMEs of northern India which have implemented TQM initiatives and faced different barriers in its successful implementation. Questionnaire survey has been performed followed by Qualitative and Quantitative modeling including interpretive structural modeling, fuzzy set theory, and structural equation modeling. Results of investigation recommended that resistance from employees is …
Published in Journal of Production Research & Management · Vol. 9, Issue 3, 2019 · pp. 41–55 Read article
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To Optimize the Efficiency of Bottle Sleeving Machine by Reducing Systematic Errors
Abstract: Bottle sleeving machines are the machines use to label and sleeving the caps to the bottle. To gain the mass production and to improve the efficiency of this machine our team decided to change the parameters and proper alignment of few parts in machine. Previously, there were several errors include like systematic errors. Firstly, we change the sensors positioning to get successive operation of sleeves to the bottle. There were …
Published in Journal of Production Research & Management · Vol. 12, Issue 2, 2022 · pp. 23–29 Read article
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Industrial wagon tippler to scheme and scope materials handling
Abstract: This article is study about tippler to discharge bulky materials of various plants on conveyor transit system. Tippler is used for emptying loaded wagons by tipping it. Clamp devices have been inclusive to tippler so as to retain wagon from top as well as from side. Wagon tipplers have equipped with track stops, wheel grippers and different type of limit switches. Geometry of fabrication has categorized wagon tipplers by either …
Published in Journal of Production Research & Management · Vol. 12, Issue 1, 2022 · pp. 1–7 Read article
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Lean Production using Casting Simulation to Promote FTR Approach
Abstract: When the talk is about the green production, then intention is to develop a product with first-time-right approach. Foundry desperately needs such production system, as it provides wide range of products. Even the small errors in the inputs (concept, design, raw material, process, etc.) can lead to wasted outputs [1], and invite unwanted cost of reworking. Thus, it is of extreme importance to develop the castings with FTR (first time …
Published in Journal of Production Research & Management · Vol. 3, Issue 2, 2013 · pp. 23–29 Read article
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Numerical Simulation and Parameter Analysis for Pentacene based Organic thin Film Transistor with HfO2 Gate Dielectric
Abstract: This paper explains 2D numerical simulation and Characterization of Electrical parameter of Pentacene (Organic semiconductor) based Organic thin film transistor (OTFT) devices with HfO2 as a gate dielectric and Electrical parameters including; Threshold Voltage (Vt), Mobility (µ),Ion/Ioff, and Transconductance (gm), Sub threshold slope (SS) are extracted. The numerical simulation includes model for defect density of state and field dependent mobility model.
Published in Journal of Semiconductor Devices and Circuits · Vol. 6, Issue 2, 2019 · pp. 28–34 Read article
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Advances and Challenges in the Development of High-performance Silicon Carbide (SiC) Power Devices
Abstract: Due to its distinct features, silicon carbide (SiC), a wide-bandgap semiconductor material, has attracted a lot of attention lately. SiC has superior electrical characteristics compared to silicon, making it an attractive material for high-performance power electronic devices. SiC-based devices can operate at higher temperatures, higher voltages, and higher switching frequencies, which can result in increased power density and efficiency. Recent advances in SiC device technology have led to the development …
Published in Journal of Semiconductor Devices and Circuits · Vol. 9, Issue 3, 2022 · pp. 15–20 Read article
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Literature Review on Space Structure Connection
Abstract: AbstractThe performance of structural connections of all types has been the subject of intensive research during the last two decades. In connection system for the space structure, considering structural and geometrical requirements, many researches have provided different types and forms of connectors. Modern research from Luciano Mendes Bezerra, Cleirton André Silva de Freitas, William Taylor Matias, Yosiaki Nagato (increasing load capacity of end-flattened connections, 2009), Seyed Amin Mostafavian, Mohammad Reza …
Published in Journal of Structural Engineering and Management · Vol. 5, Issue 2, 2018 · pp. 1–8 Read article
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Corrosion of Reinforcement in Concrete and Steel: Review Paper
Abstract: Present paper review about all the aspects of corrosion of reinforcement. Like methods for controlling the corrosion, Alternatives materials, numerical modelling for predicting the corrosion rates. Different admixtures used for controlling corrosions. Epoxy materials compared to conventional cementite materials shows very small shrinkage defect. For damage prediction rate of corrosion is very crucial input parameters. Corrosioninfluencing factors such as cover cracking, resistivity, concrete quality and cover depth should be incorporated …
Published in Journal of Structural Engineering and Management · Vol. 3, Issue 2, 2016 · pp. 43–50 Read article
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Synthesis and Characterization of In2S3 Nanoflake Thin Film for Photosensor Applications
Abstract: Indium sulphide (In2S3) thin films in the form of nanoflakes are synthesized by using chemical vapour deposition method on glass substrate with the intension to test its photosensor applications. These as deposited nanoflake thin films are characterized for physicochemical properties using X-ray diffraction (XRD) pattern, energy dispersive X-ray (EDAX) analysis,scanning electron microscopy (SEM) while optoelectronic properties were studied using optical and electrical characteristics obtained through UV-Vis transmission spectroscopy and I-V …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 4, Issue 3, 2017 · pp. 21–26 Read article
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Effect of Dry Carbon Fibers on the Mechanical Properties of G801 Carbon Fiber Reinforced Composites
Abstract: The field of fiber-reinforced composite materials has progressed quickly in the last two decades, mainly due to the extreme lightness and superior properties of it, when compared to conventional materials. These materials are progressively being utilized as a part of aviation, automotive, electronics, sporting goods, and numerous other modern applications. In this work, we have fabricated carbon fiber reinforced composites by lay-up procedure in different sequences. This work aims to …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 4, Issue 2, 2017 · pp. 1–7 Read article
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Evolution of Graphene Oxide : A Survey
Abstract: Graphene, first isolated in 2004, is the 2D material that captivated researchers’ attention due to its extraordinary properties. These extraordinary properties motivated researchers to keep on searching better ways for synthesis of Graphene oxide (GO) and reduced graphene oxide (rGO). Several synthesis(oxidation-reduction) mechanisms are available in literature such as: Staudenmaier’s(ST), Hofmann’s (HO), Hummers’ (HU), Modified Hummer’s (MHU), improved Hummers’(IHU) and Mild Oxidation(MO) methods for oxidation and thermal, chemical, hydrothermal and …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 5, Issue 2, 2018 · pp. 31–39 Read article
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Effect of Welding Parameters on Microstructure and Mechanical Properties of Friction Stir Welded AA6061-T6 Joints
Abstract: Friction stir welding is a solid state joining process capable of joining similar and dissimilar materials, initially developed for joining of aluminium alloys. In the present work, the effect of friction stir welding parameters on the microstructure and mechanical properties of aluminium joints is studied. An attempt has been made to investigate the weldability of Al6061-T6 alloy using high speed steel tool in friction stir welding machine. Dye penetration test …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 6, Issue 1, 2019 · pp. 10–16 Read article
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Survey of System-on-Chip Modular Test Approach
Abstract: The advancement in semiconductor technology over the past few decades has enabled the industry to develop new design and reuse methodologies referred as System-on-chip (SoC) design. These typically integrate heterogeneous mix of various complex analog and digital cores, with all their necessary electronic circuitry. The recent advancements have led to the use of the 3D structures (3D-SOCs) that brought along the benefits of higher performance, minimum average interconnect length, reduced …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 3, 2016 · pp. 56–70 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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An Assessment of Structural Safety of Cement Mortar Lined Irrigation Water Pipeline by Hydrostatic Test
Abstract: Structural safety of cement mortar-lined water pipeline is a matter of great concern primarily due to weld defects, fabrication deficiency and assessment of pressure shared by lining. The verification of structural design of such pipeline and assessment of safety is generally carried out by conducting prototype hydrostatic test. The present paper is based on one such type of study conducted by CWPRS, Pune, for Guthpha Lift Irrigation Scheme, Nizamabad, Andhra …
Published in Journal of Water Resource Engineering and Management · Vol. 1, Issue 1, 2014 · pp. 1–5 Read article
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Mechanical Performance Analysis of PET based Fibre Reinforced Concrete: A Review
Abstract: AbstractConcrete is characterized by various kinds of defects which include low tensile strength, low ductility, heavy weight and low energy absorption among others. Use of plastic wastes in concrete will result in safe, eco-friendly disposal as well as enhancement of certain physical and mechanical properties of concrete. Due to its certain user friendly and desirable properties such as low density, high tensile and impact strength, fabrication capabilities, long life, light …
Published in Recent Trends in Civil Engineering & Technology · Vol. 8, Issue 1, 2018 · pp. 41–46 Read article
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Detection of Eccentricity Fault for Induction Motor
Abstract: The study shows that 80% of faults are because of eccentricity in induction motors, advancing numerous research endeavors still gave to the eccentricity in these motors. In this paper, an asynchronous motor under static and dynamic eccentricities with various load levels is modeled utilizing using finite element method (FEM) as FEM is utilized as an intense numerical technique for analysis of defective induction motors. The simulation outcomes demonstrate that due …
Published in Trends in Electrical Engineering · Vol. 8, Issue 2, 2018 · pp. 19–32 Read article
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A COMPREHENSIVE DESIGN OF STANDING WHEEL CHAIR
Abstract: Walking is a basic ability of human beings.It enables independendency.One can imagine for people with a leg disability standing on their own feet and walking can be very difficult and mostly requires a walker.In the present scenario of market most mechanical or mechanical-electrical walkers available today come with different kinds of defects and fail to offer satisfactory and proper movement support. This paper aims to provide a complete overview of …
Published in Trends in Machine design · Vol. 5, Issue 2, 2018 · pp. 29–33 Read article