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1510 articles for “surface”
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Optimization of Multiple Performance Characteristics Using Desirability Function Analysis (DFA)
Abstract: In present days the manufacturers are facing many challenges in setting of optimal process parameters while machining in order to achieve multiple performance characteristics. The present work is to investigate the effect of the drilling process parameters on the multiple responses of Volume of material removal rate (VMRR) and surface roughness (Ra). The experiments were carried out on AA6082 material using taguchi’s L16 Orthogonal array with carbide twisted drills. The …
Published in Journal of Production Research & Management · Vol. 8, Issue 2, 2018 · pp. 23–29 Read article
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Parallel Conwip for a High-mix Multi-stage Production System with the entrance of rework
Abstract: In a complex production environment, more than one type of pull systems is often used to regulate the processesof different products. In literature, performance studies appertaining to multiple pull systems co-existed in aproduction environment are rare. The present paper evaluates the performances of parallel CONWIP (PC)systems in a high-mix production system with the entrance of rework. The production comprises three stages ofshared-machine facilities. Reject parts produced by the first stage …
Published in Journal of Production Research & Management · Vol. 1, Issue 1-2-3, 2011 · pp. 21–44 Read article
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Different Aspects to Achieve the Hole Quality in Gun Drilling Machining
Abstract: The manufacturing industry is always trying to fulfill the requirement of various industries and developing facilities to manufacture the designed parts. Many applications for various industries demand for deep drill where the ratio of depth of the hole to the diameter is greater than twenty. Gun drilling, B.T.A. drilling and ejector drilling are the three drilling processes to make deep holes. In the gun drilling process the pressurized oil is …
Published in Journal of Production Research & Management · Vol. 6, Issue 1, 2016 · pp. 34–38 Read article
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Thin fluoropolymer coating on cotton textile to achieve hydrophobicity
Abstract: We report a simple novel procedure to prepare hydrophobic cotton textiles by admicellar polymerization on the cotton surface. By in situ introducing fluoropolymer on cotton fibers to generate a dual-size surface roughness, followed by hydrophobization with a little amount of fluoromonomer Octafluoropentamethyl methacrylate (OFPM) with short time, normally hydrophilic cotton has been easily turned in to hydrophobic. Hydrophobic cotton textile exhibits a static water contact angle of 135° for a …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 5, Issue 1, 2018 · pp. 15–22 Read article
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Design, Analysis and Experimental Study of Worm and Worm Gear Pair for Plug Valve Application
Abstract: The present work deals with the design procedure, load carrying capacity, mathematical modelling,analysis of worm and worm gear for plug valve application. The plug valves are used in various fluidservices applications. It performs well in slurry applications. It is also used in air, gaseous servicesand oil piping systems and a like applications. In plug valve the main and important function of theworm gear drive is to reliably transmit torque and …
Published in Trends in Machine design · Vol. 8, Issue 1, 2021 · pp. 11–20 Read article
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Measurement of Defects in Car Bearings and Its Effect on Ultrasonic Waves
Abstract: As one of the defects of roller bearings due to intermittent coupling forces and external impact loads,surface cracks due to corrosion or wear may have many defects for rotating machines. Surfacecracking on the bearing or its ball is one of the important factors in the efficiency of the bearing andits opening. It is useful to study these cracks and identify the type and size of these cracks for bearingsused in …
Published in Trends in Mechanical Engineering & Technology · Vol. 11, Issue 1, 2021 · pp. 44–49 Read article
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Fatigue Failure Analysis of a Railway Wheel Using FEA
Abstract: In a railway transportation system, the railway wheel is the hardest and most critical component. Technological developments in the manufacturing of railway wheels in industries have made it possible to significantly extend the fatigue life of wheels. The manufacturing industries perform three tasks: aiding in train movement, supporting the carloads and also acts brake drum in the vehicle. The serious problems in railway engineering are fatigue design of a wheel …
Published in Trends in Mechanical Engineering & Technology · Vol. 11, Issue 2, 2021 · pp. 22–30 Read article
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Water Simulation Phenomenon for Porous Asphalt Pavement with Used Local Materials
Abstract: The paper describes the performance of open graded asphalt pavement with benefit of local materials aggregate and asphalt that suitable to use in hot environment. A rainfall simulation phenomenon 1.5 1.0 0.65 m length, width and height respectively, steel box was constructed to develop relationships between the surface runoff and the infiltration volume from a porous asphalt pavement surface. The 5 cm bedding course, 30 cm reservoir course …
Published in Trends in Transport Engineering and Applications · Vol. 4, Issue 1, 2017 · pp. 36–47 Read article
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Communication at High Data Rate with VCSEL Over MMF and Investigations
Abstract: AbstractThis paper presents performance evaluation for the high data rate proposed communication network with VCSEL and multi-mode optical fiber. Numerous numerical evaluations have been carried out for key parameters over the span of multi-mode fiber. It showed wide eye opening over the selected length of fiber. It depicted good performance for line width of 10, lower normalizer average power, with temperature value of 40 degree centigrade. Overall performance over 2km …
Published in Journal of Communication Engineering & Systems · Vol. 9, Issue 1, 2019 · pp. 14–21 Read article
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Triboelectric Charge Density Enhancement in Zinc Oxide Decorated Polymer Nanogenerators for Energy Harvesting Systems
Abstract: The growing need for wearable electronics, wireless sensor networks, and IoT devices has pushed research on triboelectric nanogenerator for long-term energy harvesting. However, traditional polymer-based TENGs' low triboelectric charge density restricts their energy conversion efficiency and practical performance. This research presents a zinc oxide (ZnO)-decorated polymer triboelectric nanogenerator designed to enhance surface charge density and improve electrical output. ZnO nanoparticles were synthesized using a hydrothermal method and uniformly deposited onto …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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Short Review on the Flow and Filtration of Polystyrene Microparticles in Micron-Scale Fluid Mechanics towards the Applications related to fluidic Microelectromechanical Systems
Abstract: Maskless lithography, hot embossing lithography and direct bonding technique are useful to fabricate the polymethylmethacrylate (PMMA) microfluidic devices. Also, maskless lithography and indirect bonding technique are useful to fabricate the SU-8 based glass microfluidic devices. In this work, a short review on microfluidic flow and microfluidic filtration of microparticles is provided by author related to the micron-scale fluid mechanics. This review may be useful to perform the blood filtration in …
Published in Journal of Microelectronics and Solid State Devices Read article
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Advancements in Earth Observation Satellites: A Case Study of ISRO’s Missions
Abstract: Earth observation satellites are an essential tool for monitoring and understanding the Earth's environment, weather patterns, and natural resources. The Indian Space Research Organisation (ISRO) has launched several earth observation satellites over the years, contributing significantly to this field. ISRO's earth observation satellites include the Resourcesat series, Oceansat, Cartosat, and ScatSat. These satellites are equipped with various sensors and instruments, such as multispectral cameras, microwave radiometers, and scatterometers, which provide …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 13, Issue 1, 2024 · pp. 37–48 Read article
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Properties of ZnO Thin Film deposited on Flexible Substrate using RF Sputtering
Abstract: Semiconductor materials demand is increased in recent years, due to new emerging technologies. There is need to find the alternate for silicon in electronics industry, as silicon is brittle in nature and has low efficiency, which makes it unsuitable for transparent and flexible device. Zinc oxide (ZnO) is emerging as popular choice of researchers due to its wide range of properties, abundancy and non-toxicity. This work explores the properties of …
Published in Journal of Polymer & Composites · Vol. 12, Issue 4, 2024 · pp. 50–56 Read article
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Gelatin-EiO2 (Ei = Si/Ti/Zr) Based Mesoporous Nano-hybrids: Synthesis and Characterization
Abstract: The hybrid materials are mostly prepared by combining the organic or bio-organic part to the inorganic building blocks and are used in many applications. Gelatin as one of the main component of hybrid materials is an attractive option. It is biodegradable; biocompatible; non-toxic; bio-adhesive and contains many active groups such as –NH2, –COOH, in the biopolymer backbone makes these hybrid materials important in various technological applications. The synthesis of a …
Published in Journal of Materials & Metallurgical Engineering · Vol. 14, Issue 3, 2024 · pp. 30–58 Read article
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Enhancing Chatter Resistance in Deep Hole Boring Through Modified Tool Design: A Study on Impact of Length-To-Diameter (L/D) Ratio
Abstract: Deep hole boring is a specialized machining process crucial for creating precise bores with high length-to-diameter (L/D) ratios, particularly vital in aerospace, automotive, and oil and gas industries. The L/D ratio is pivotal for stability and performance. Chatter, a detrimental vibration phenomenon, is a significant concern in deep hole boring, influenced by the L/D ratio. Higher L/D ratios increase chatter, leading to poor surface finish and reduced tool life. Longer …
Published in International Journal of Machine Systems and Manufacturing Technology · Vol. 2, Issue 2, 2024 · pp. 24–33 Read article
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The Onset of Rayleigh-Bénard-Marangoni Convection in a Ferromagnetic Fluid Layer
Abstract: This study examined the implications of magnetic boundary conditions, which are vertical in nature, on buoyancy and surface tension–driven ferrothermal convection (FTC) in a ferrofluid layer. While the upper surface is stress-free and susceptible to general thermal boundary issues, the bottom surface is stiff and insulating against temperature changes. The eigenvalue issue is solved analytically using the regular perturbation method and numerically using the Galerkin technique. According to analysis, raising …
Published in Journal of Experimental & Applied Mechanics · Vol. 16, Issue 1, 2025 · pp. 1–9 Read article
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Effectiveness of PTFE-Based Nano-coatings in Improving Corrosion and Wear Resistance of Stainless Steel
Abstract: Polytetrafluoroethylene (PTFE) has emerged as a highly effective material for enhancing the durability and performance of metal surfaces, particularly in environments requiring superior corrosion resistance and low friction. This study investigates the application of PTFE coatings on various metallic substrates, with a focus on stainless steel and carbon steel, to improve their corrosion resistance, wear protection, and tribological performance. Utilizing advanced deposition techniques such as sol-gel and plasma spray, PTFE …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 2, Issue 2, 2024 · pp. 32–38 Read article
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Quasi-Static Thermal Stress Analysis in a Thin Circular Cylinder Due To Internal Heat Generation Under Transient Temperature Conditions
Abstract: This paper is concerned with inverse quasi-static thermal stress analysis in a thin circular cylinder due to internal heat generation under transient temperature conditions. The internal heat generation is modeled as a cylindrical surface heat source located in the annular region along the axial length of the cylinder. This source is placed concentrically inside the cylinder and begins releasing heat spontaneously at a specific point in time. The thin circular …
Published in Recent Trends in Fluid Mechanics · Vol. 12, Issue 2, 2025 · pp. 17–28 Read article
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Dental Implant Analysis Using the Wear and Hardness Testing Method
Abstract: We will compare the number of implants from the manufacturer using either an analytical approach or a software-based approach using Minitab software regarding structural dental implants. Several factors influence a dental implant, and new bone grows. The implant surface is one of the elements that have a major impact on the quality of osteointegration. Various techniques and resources have been employed to modify an implant's surface to encourage osseointegration along …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 Read article
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AI-Assisted Defect Detection in Polymer Composite Insulators Using an Optimised Ensemble Deep Learning Framework for Structural Health Monitoring
Abstract: Polymer composite insulators, particularly those made from silicone rubber and epoxy resins, are increasingly adopted in high-voltage transmission systems due to their superior electrical insulation, lightweight design, hydrophobicity, and environmental durability. Despite their advantages, these materials are susceptible to surface degradation, mechanical cracking, and flashover under prolonged exposure to environmental pollutants, thermal stress, and electrical aging. Accurate, real-time condition assessment of these composite insulators is critical for ensuring operational safety, …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 253–261 Read article