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296 articles for “fabrication”
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Electroforming Technology for Advanced Metal Fabrication
Abstract: Electroforming technology is a highly specialized process for fabricating a metal part by electro deposition in a plating bath over a base form or mandrel which is subsequently removed. On a mandrel, also known as a mold or matrix, which is removed, metal is electrodeposited. As a result, the coating turns into the product. Intricate parts made of nickel, copper, gold, and silver, such as molds, dies, waveguides, nozzles, and …
Published in International Journal of Manufacturing and Materials Processing · Vol. 10, Issue 1, 2024 Read article
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Silicon Wafer Cleaning: A Fundamental and Critical Step in Semiconductor Fabrication Process
Abstract: silicon is the most interesting and useful semiconductor material in fabrication of numerous semiconductor devices. In semiconductor device fabrication, the various processing steps fall into four general categories i.e. deposition, removal, patterning and modification of electrical properties. In every steps, wafer cleaning is the primary and principle step for developing semiconductor based electronic devices. cleaning process is the removal of chemical and particle impurities without altering or damaging the wafer …
Published in International Journal of Applied Nanotechnology · Vol. 5, Issue 1, 2019 · pp. 8–13 Read article
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Assessing the Physical and Psychological Problems of Workers in Cotton Fabric Industry at Nagercoil in Kanyakumari District, Tamil Nadu, India
Abstract: A study was conducted to assess the physical and psychological problems of workers in the cotton fabric industry at Nagercoil. The following objectives were set for the study:• To assess the physical problems of workers in the cotton fabric industry • To assess the psychological problems of workers in the cotton fabric industry • To correlate the physical and psychological problems of workers in the cotton fabric industry • To …
Published in International Journal of Neurological Nursing · Vol. 7, Issue 2, 2021 · pp. 6–12 Read article
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Thermodynamic Explanation on Surface-Driven Capillary Flow of Working Liquids in the Microfluidic Devices Fabricated by Polymers
Abstract: In this experimental work, total 100 individual microfluidic devices are fabricated by polymers using author’s own hands-on completely. A set of straight microchannels, gradual expansion microchannels, sudden expansion microchannels and sudden contraction microchannels are fabricated by SU-8 using the maskless lithography and indirect bonding technique. Another set of straight microchannels, gradual expansion microchannels, sudden expansion microchannels and sudden contraction microchannels are fabricated by PMMA using the maskless lithography, hot embossing …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 6, Issue 1, 2020 · pp. 45–70 Read article
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PERFORMANCE COMPARISON OF SIMULATED AND FABRICATED WIDEBAND MINIATURIZED WPD
Abstract: In this paper comparison of result of simulation and fabricated miniaturized Wilkinson Power Divider is proposed. The decay in performance of Wilkinson Power Divider during fabrication process is discussed in detail. Equal splitter Wilkinson Power Divider is designed by using CST MWS software which is very excellent as comparison to other RF design software in present scenario. The fabrication process is adopted by using PCB technology due to ease of …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 3, Issue 1, 2017 · pp. 10–14 Read article
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Technical Yarns from Newly developed Indigenously Fabricated Folding Unit
Abstract: A small machine was developed indigenously with a new concept for the manufacturing of different kinds of technical yarn. This prototype machine is only for the production of coarser counts and it gives the core-sheath yarn structure. The yarn obtained from this machine can be comparable with yarn produced on DREF spinning. Any type of core material, like cut selvedge produced from modern looms, metallic wires, and the filament yarns …
Published in International Journal of Composite and Constituent Materials · Vol. 2, Issue 2, 2016 · pp. 3–7 Read article
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Review on the Hot Embossing Technology to Fabricate the Polymer based Microfluidic Devices in Mechanical Engineering
Abstract: Polymers are suitable materials to fabricate the microfluidic devices in mechanical engineering. Hot embossing technology is useful to fabricate these polymer based microfluidic devices. Both of the lithography and direct bonding can be performed by hot embossing technology to fabricate these polymer based microfluidic devices. Polymer microfluidic devices fabricated by the hot embossing technology are useful in multifarious bioengineering applications according to the available literatures. Keywords: Hot embossing, Polymer, Microfluidics, …
Published in International Journal of Polymer Science and Engineering · Vol. 4, Issue 1, 2018 · pp. 34–37 Read article
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Short Report on the Polymer based Microfluidic Device Fabricated by Lithographic Techniques
Abstract: In this experimental work, a single microfluidic device is fabricated by maskless lithography, hot embossing lithography and direct bonding technique inside the cleanroom laboratory. Microchannel bend is the selected design to fabricate the microfluidic device. Dyed ethanol is selected and prepared as working liquid. The surface-driven capillary flow of dyed ethanol is recorded in the fabricated microchannel bend using a CMOS camera inside the materials-science laboratory. Effect of centrifugal force …
Published in International Journal of Polymer Science and Engineering · Vol. 6, Issue 2, 2020 · pp. 17–20 Read article
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Passive Capillary Flow of Dyed Ethylene Glycol in the SU-8 based Glass Microfluidic Devices Fabricated by Microfabrication Technologies
Abstract: In this work, total 4 individual SU-8 based glass microfluidic devices are fabricated by the steps of maskless lithography and indirect bonding technique using author’s own hands-on completely. Dyed ethylene glycol (80% red dye, 20% ethylene glycol) is prepared as working liquid. The CMOS camera catching 25 frames per second with a corresponding time-scale resolution of 0.04 second is used to record the surface-driven capillary flow of dyed ethylene glycol …
Published in International Journal of Chemical Engineering and Processing · Vol. 5, Issue 1, 2019 · pp. 37–42 Read article
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Artificial neural network based classification of varieties of thin and thick fabric images
Abstract: Abstract: The proposed work focuses on classification of varieties of thin and thick fabric materials from images. The morphological operations such as erosion and dilation are performed. Morphological features namely, avg_moments, average_area, roundness, max_area, average_perimeter, average_eccentricity, circularity and average_equivalent_diameter are extracted. The prediction is carried out using artificial neural network. The classification rates of 84.84% and 90.90% are obtained for thin and thick fabric images. The classification rates for varieties …
Published in International Journal of Image Processing and Pattern Recognition · Vol. 4, Issue 1, 2018 · pp. 31–41 Read article
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COMPARISON OF FABRICATED WIDEBAND COMPACT BLC AND MINIATURIZED WPD USING PCB TEHNOLOGY
Abstract: In this paper comparison of fabricated Wilkinson Power Divider and Branch Line Coupler is proposed while one is three port passive device and another is four port passive device respectively. It shows the basic difference along fabricated divider and coupler which is very rarely mentioned in another papers. The proposed design is working along wide band i.e. 0-3 GHz and also single layer technique is discussed which is very effective …
Published in International Journal of Analog Integrated Circuits · Vol. 3, Issue 1, 2017 · pp. 1–6 Read article
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Surface-Driven Microfluidic Flow of Dyed Water for Nano-Scale Application towards the Fabrication of Nanofluidic Sensors
Abstract: In this experimental work, a single SU-8 based glass microfluidic device is fabricated by maskless lithography and indirect bonding technique. Dyed water is prepared and used as working liquid. A CMOS camera is used to record the surface-driven microfluidic flow of dyed water in the fabricated SU-8 device. Leakage-free surface-driven microfluidic flow of dyed water is recorded. Nanofluidics is the next level of fluid mechanics after microfluidics towards miniaturisation of …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 7, Issue 1, 2021 · pp. 19–22 Read article
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Experimental Demonstration on the Recording of Capillary-Filled Microfluidic Devices Fabricated by Polymeric Material
Abstract: In this present experimental work, total 52 individual PMMA microfluidic devices are fabricated by maskless lithography, hot embossing lithography and direct bonding technique in a cleanroom laboratory. The selected working liquids are dyed water, dyed aqueous ethanol and dyed aqueous isopropyl alcohol and are prepared in a materials-science laboratory. Fabricated microfluidic devices are tested by the prepared aqueous working liquids, and each capillary-filled device after the surface-driven microfluidic flow is …
Published in International Journal of Polymer Science and Engineering · Vol. 5, Issue 2, 2019 · pp. 31–41 Read article
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Experimental Studies on the Surface-Driven Microfluidic Flow of Dyed Working Liquids in Sudden Expansion Microchannels Fabricated by Polymer
Abstract: In this experimental work, the sudden expansion microchannels are fabricated by maskless lithography, hot embossing lithography, drilling, direct bonding technique and chip separation technique using own hands-on of author completely. Total 15 individual sudden expansion microchannels are fabricated in this work using polymethylmethacrylate (PMMA) as optically transparent polymer. Effects of channel aspect ratio, surface wettability and liquid viscosity on surface-driven microfluidic flow are experimentally studied in the fabricated sudden expansion …
Published in International Journal of Polymer Science and Engineering · Vol. 6, Issue 1, 2020 · pp. 44–59 Read article
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Design and Fabrication for Power Generation using Maglev Turbine
Abstract: This study represents about the history and global scenario of development of power generation. Indian scenario of power generation explained through tables and graph. Brief discussion about the Maglev turbine. Methodology and selection of turbine also discussed and presents the designs and fabrication of Maglev Turbine which is further used for power generation. In this paper, it is explained that miniature maglev turbine is divided in different sections to understand …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 4, Issue 1, 2018 · pp. 40–52 Read article
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Mechanical Characterization using Finite Element Analysis of Jute and E-Glass Fabric Reinforced Epoxy Composite Materials
Abstract: Recently, there has been a greater inclination towards natural fiber reinforced plastics composites (NFRPC) because these are environmentally friendly and cost-effective to synthetic fiber reinforced composites. The availability of natural fibers and ease of manufacturing have tempted researchers worldwide to try locally available inexpensive fibers and to study their feasibility of reinforcement purposes and to what extent they satisfy the required specifications of good reinforced polymer composite for tribological applications. …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 6, Issue 2, 2020 · pp. 21–39 Read article
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Synthesis of mixed metal oxides CuO-SnO, composite nano material for the study ofefficiency of textile fabrics as UV-absorbers
Abstract: In the present study we report the synthesis and characterization of nanosized copper oxide,tin oxide and composite of copper and tin oxide and their application on cotton fabrics forUV shielding. The CuO-SnO nanocomposite material prepared under different temperature90 0 - 150 °C by using water and 1,2-ethanediol as a solvent. Copper oxide, tin oxide andcomposite of copper and tin oxide nanoparticles were then applied to cotton sample to impartsunscreen activity …
Published in International Journal of Composite and Constituent Materials · Vol. 11, Issue 2, 2025 · pp. 1–5 Read article
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Studies on Functionalized Nonwoven Polypropylene Fabric for Antibacterial & Antiviral Properties
Abstract: Nonwoven polypropylene (NWPP) fabric is a versatile material used predominantly in medical field for hygiene products and for PPE applications. The application of NWPP is limited in disinfectant area due to lack of antimicrobial properties and its non-polar nature. The coating of antimicrobial agents on NWPP fibre is expected to lower down the intensity of communicable microbial infections. The present study involves the surface functionalization of NWPP fibre via plasma …
Published in International Journal of Polymer Science and Engineering · Vol. 11, Issue 1, 2025 · pp. 24–34 Read article
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One-Step Fabrication of Superomniphobic Pvdf-HFPSiO2Membrane for Long-Term CO2 Absorption inMembrane Gas Absorption System
Abstract: Membrane pore wetting is one of the major challenges for membrane gas absorption, especially when low surface tension liquid absorbents such as amine absorbents are utilized. To minimize diffusion resistance across the membrane, maintaining a non-wetted operating mode in membrane gas absorption is crucial. In this study, a superomniphobic polyvinylidene fluoride-cohexafluoropropylene membrane was fabricated by adding silica nanoparticles (SiO2) in an ethanol coagulation bath through non-solvent-induced phase separation. The surface …
Published in International Journal of Composite Materials and Matrices · Vol. 10, Issue 2, 2024 · pp. 35–44 Read article
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Leakage-Free Microfluidic Flow of the Dyed Aqueous Ethanol in a single SU-8 based Glass Microfluidic Device Fabricated by the Selected Microfabrication Technologies
Abstract: In this work, a single SU-8 based glass microfluidic device is fabricated by the maskless lithography and indirect bonding technique. A CMOS camera catching 25 frames per second with a corresponding time-scale resolution of 0.04 second is used to record the surface-driven microfluidic flow. Dyed aqueous ethanol (80% dyed water, 20% ethanol) is prepared to be used as working liquid. A surface-driven microfluidic flow of the prepared working liquid is …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 4, Issue 2, 2018 · pp. 13–17 Read article