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53 articles for “roughness”
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Controlled Texture of Magnetron Sputtered Transparent Conducting ZnO: Al Films for Solar Cell Applications
Abstract: Textured transparent and conducting ZnO:Al films were prepared by rf-magnetron sputtering on glass substrate at a temperature 3500C under Ar and Ar+O2 gas ambient. ZnO:Al thin films shows a minimum electrical resistivity of (~8.210-4 Ω-cm), and high optical transmittance (T~86–90% average) in visible region. With increasing of oxygen concentration ZnO:Al films become more compact, stoichiometric and becomes more electrically resistive. ZnO:Al shows hexagonal wurtzite polycrystalline structure with strong (002) orientations. …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 1, Issue 2, 2015 · pp. 12–19 Read article
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Roller Burnishing Process on Surface Hardness
Abstract: Roller burnishing is the procedure which produces a fine surface finish by the planetary rotation of hardened roils over a bored or turned metal surface. Roller burnishing involves plastic deformation of the surface of the work piece to improve surface structure. The most important parameter describing surface integrity is surface roughness. A detailed experimental program was used in this study where specimens were subjected to various levels of feeding speed …
Published in International Journal of Mechanics and Design · Vol. 3, Issue 1, 2017 · pp. 14–17 Read article
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Optimization of Machining Parameters for Nylon 6 Composite in CNC Lathe Using PCA-Based TOPSIS
Abstract: This work investigates the parametric optimization of CNC turning operation for Nylon 6 with principal component analysis (PCA) and technique for order preference by similarity to ideal solution (TOPSIS) based on Taguchi approach. Taguchi’s L16 orthogonal array takes 16 experimental runs to execute the design matrix of turning parameters through PCA coupled with TOPSIS, utilizing relevant experimental data as obtained through experimentation. Turning speed (TS), feed rate (FD) and depth …
Published in International Journal of Manufacturing and Materials Processing · Vol. 4, Issue 1, 2018 · pp. 36–47 Read article
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A Comparative Study of JWT and Web Authn for Password less Authentication in MERN Stack Applications
Abstract: More than 80% of web application breaches are rooted in credential compromise, yet password-based login continues to be the default choice in most MERN stack deployments. This paper reports on a side-by-side implementation of JSON Web Token (JWT) and Web Authentication (WebAuthn) within a shared MERN reference application built on React 18, Express.js 4.18, Node.js v20 LTS, and MongoDB Atlas M10. The JWT branch uses bcrypt at cost factor 12 …
Published in International Journal of Electrical Power System and Technology · Vol. 12, Issue 2, 2026 Read article
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Evolution of Mobile Wireless Generations and the Architectural Foundations of AI-Integrated 6G Networks
Abstract: Wireless communication has moved through five complete technology generations in roughly four decades, and each transition has reshaped how societies exchange information, run businesses, and design cities. This paper is the first instalment of a two-part review and concentrates on the historical arc of that journey, tracing the defining traits, benefits, and shortcomings of 1G through 5G before turning to the architectural groundwork on which sixth-generation (6G) networks are being …
Published in International Journal of Digital Communication and Analog Signals · Vol. 12, Issue 2, 2026 Read article
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AI-Based Deepfake Voice Detection Model for Hindi Language
Abstract: Most current research on deepfake voice detection focuses heavily on English or Mandarin, creating a significant security gap for Hindi speakers. To address this, we developed a detection framework specifically tailored for the Hindi language using a lightweight approach: Mel-Frequency Cepstral Coefficient (MFCC) feature extraction paired with an XGBoost classifier. We trained the system on a large dataset comprising over 99,000 real voice samples and roughly 3,800 synthetic samples, each …
Published in International Journal of Image Processing and Pattern Recognition · Vol. 12, Issue 2, 2026 Read article
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Interfacial Engineering and Performance Optimization of Jute-Fiber-Reinforced Epoxy Laminates
Abstract: The increasing environmental concerns associated with synthetic fiber reinforced polymer composites have driven substantial research interest toward naturally derived, biodegradable fiber alternatives. This study presents a comprehensive mechanical and thermal characterization of jute fiber reinforced epoxy composites fabricated via hand lay-up followed by compression molding. Jute fibers were subjected to alkali treatment using 5 wt% sodium hydroxide (NaOH) solution for 4 hours at ambient temperature to enhance fiber–matrix interfacial bonding …
Published in International Journal of Polymer Science and Engineering · Vol. 12, Issue 1, 2026 · pp. 52–64 Read article
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Synthesis, Spectral Study, SEM Analysis and Antibacterial Study of New Indole Azo Ligand and Complexes
Abstract: Azo ligands have developed significantly in recent decades due to their fundamental role in the coordination chemistry of transition elements. Their rapid response to coordination bonding in ligand and complex chemistry, particularly with divalent ions, is a key factor. The azo-bridged bond has played a well-established role in the formation of cobalt, nickel, and copper complexes. In this study, we prepared a novel ligand, an indole derivative bonded to an …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 12, Issue 1, 2026 · pp. 1–10 Read article
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Microstrip Line Fed Capacitively Coupled Patch Antenna for Wireless Application
Abstract: In order to increase the impedance bandwidth for wireless local area network (WLAN) applications, aunique design of a microstrip line-fed, capacitively coupled, corner-truncated microstrip patch antenna isput forth, examined, and optimized in this research. The low profile, light weight, ease of manufacture,and compatibility with printed circuit technologies of microstrip patch antennas are well known.Conventional patch antennas' intrinsically small impedance bandwidth, however, is a significantdisadvantage that reduces their usefulness in broadband …
Published in International Journal of Microwave Engineering and Technology · Vol. 11, Issue 2, 2025 · pp. 1–9 Read article
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Synthesis of Groundnut Shell Composites: Exploring Chemical Reactions for Particle Treatmentand Modification
Abstract: The utilization of groundnut shell particles as a sustainable and economical filler in composite materials has garnered significant interest in recent years. This manuscript presents an in-depth analysis of the chemical processes involved in synthesizing groundnut shell-based composites, with a focus on the treatment and modification of the particles to enhance their compatibility and functional properties. The study investigates various chemical reactions, including acid and alkali treatments, aimed at altering …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 10, Issue 2, 2025 · pp. 27–32 Read article
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Morphology and Elemental Composition of Carbon Fibers†
Abstract: Carbon fibers, owing to their unique property of high specific strength, find immense utility in almost all sectors of human activity, ranging from aeronautics, astronautics, geonautics, aquanautics, industry, catalysis, smart materials, defence, and many more. The production, properties, and applications of carbon fibers and related materials are a fertile and fast-growing research area drawing wide attention of researchers worldwide. The key feature of this original research paper is to study …
Published in International Journal of Composite Materials and Matrices · Vol. 11, Issue 1, 2025 Read article
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Revolutionizing Steel Production: A Pathway to Low-Carbon Direct Reduction Iron (DRI)
Abstract: The steel industry, a cornerstone of modern infrastructure, is a significant contributor to global CO2 emissions, accounting for roughly 11% of industrial carbon output. To mitigate this impact, breakthrough technologies and decarbonization strategies are essential, especially as extreme weather events highlight the urgency of addressing climate change. Potential routes to a low-carbon future for steelmaking are provided by advancements in carbon capture, utilization, and storage (CCUS), hydrogen-based steel manufacturing, and …
Published in International Journal of Metallurgy and Alloys · Vol. 10, Issue 2, 2024 · pp. 11–15 Read article
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Enhancing Geopolymer Concrete Properties Through Processed Fly Ash and Alccofine Integration
Abstract: Abstract Geopolymer concrete (GPC) is gaining attention as a sustainable alternative to ordinary Portland cement (OPC) due to its potential to reduce the environmental impact of cement production, which accounts for roughly 7% of global CO2 emissions. This study investigates the use of processed fly ash and alccofine as key ingredients in GPC to improve its workability and compressive strength. Experimental tests were conducted to evaluate the effects of different …
Published in International Journal of Construction Engineering and Planning · Vol. 10, Issue 2, 2024 · pp. 1–8 Read article
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Investigations into the Features and Attributes of Low-Density Polyethylene/Thermoplastic Sago Starch Composites
Abstract: Low-density polyethylene, the material used to make most plastic shopping bags, has a considerable negative impact on the environment. It is enough intriguing for a substance to decay, develop for whatever reason (hydrolysis, Pseudomonas aeruginosa, etc.), and be exposed to the elements. Sodium trimetaphosphate was used in this experiment to treat sago starch. Using additives (glycerol/urea, 1% benzophenone, and epolene wax) in the same amount of starch, sago starch was …
Published in International Journal of Composite and Constituent Materials · Vol. 10, Issue 1, 2024 · pp. 10–23 Read article
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Smart Monitoring of Vibration in CNC Turning Tool Holders: Arduino-Based Sensor Interface
Abstract: Vibrations are a common problem in CNC turning operations, affecting the machine tool's overall performance and productivity. The geometrical accuracy and surface quality are reduced as a result of repeated vibrations, reducing tool life. Vibrations can now be sensed and responded, thanks to new advancements in electronic technology. The goal of this research work is to use a 3D accelerometer(sensor) to measure vibrations and determine the value of vibration and …
Published in International Journal of Computer Aided Manufacturing · Vol. 10, Issue 1, 2024 · pp. 7–27 Read article
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Analytical Modeling and Simulation of Helical Gear Systems for Improved Load Distribution
Abstract: An analytical modeling and simulation methodology to improving load distribution in helical gear systems is presented in this research study. Fundamental parts of many mechanical systems, helical gears provide the benefits of smooth engagement, lower noise levels, and increased weight bearing capability. However, retaining lifespan and dependability in gear systems requires establishing regular load distribution throughout the gear teeth. This work explores the parameters influencing load distribution and suggests strategies …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 10, Issue 1, 2024 · pp. 1–10 Read article
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Certificate Issuing and Verification Application Using Blockchain
Abstract: With roughly a million students graduating each year, both those seeking further education and those entering the workforce rely on verifiable certificates. However, traditional paper certificates are vulnerable to counterfeiting, leading to frequent forgeries. To address this concern, this paper proposes a secure and reliable system utilizing blockchain technology for issuing digital certificates. This system creates tamper-proof digital certificates by calculating unique hash values for each electronic certificate and storing …
Published in International Journal of Software Computing and Testing · Vol. 10, Issue 1, 2024 · pp. 21–28 Read article
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A Comparative Study to Assess the Knowledge Regarding Drug Abuse and its Impact on Health Between Urban and Rural Adolescents in Selected High Schools of Gokak Taluk with a View to Develop an Information Booklet
Abstract: Background of the Study: Adolescence represents a crucial and dynamic stage in the human life cycle. Roughly 18–20% of the Indian population falls within the age range of 10–20 years. This demographic, comprising future citizens, faces a significant vulnerability to early initiation into drugs and other psychoactive substances. Nurses have an important role in assessing their knowledge regarding drug abuse in schools, and also in community area regarding drug abuse. …
Published in International journal of Nursing Science Practice and Research · Vol. 10, Issue 1, 2024 · pp. 30–52 Read article
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Literature in Activity of Bacteria
Abstract: Bio- activity (pharmacological activity ) pronounces the advantageous or antagonistic possessions of a drug on living matter. While a drug is a multifaceted chemical blend, this activity is used by the substance's active ingredient or pharmacophore nevertheless canister be adapted thru the other voters. Amongst the several properties of chemical combinations, pharmacological or biological activity theatres a crucial character subsequently it proposes customs of the amalgams in the medical solicitations. …
Published in International Journal of Analytical and Applied Chemistry · Vol. 5, Issue 1, 2019 · pp. 11–14 Read article
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A Study on the Effect of Current Density on Electrocatalytic Behavior of Ni–Co Alloy
Abstract: Active, stable and more efficient electrocatalysts are the requirements for water splitting applications. In this direction, the present paper presents the experimental results on electrolytic development of Ni–Co alloy coatings, and their application as electrode material for hydrogen evolution reactions (HER) and oxygen evolution reactions (OER). The Ni–Co alloy coatings were electrodeposited on copper substrate from a sulfate bath, using the glycerol as additive. The deposited coatings were then tested …
Published in International Journal of Chemical Engineering and Processing · Vol. 3, Issue 1, 2017 · pp. 9–23 Read article