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607 articles for “RAJA”
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Smart Iron Box with Automatic Cloth Detection and Heat Adjustment
Abstract: Ironing continues to be a lengthy and sometimes monotonous activity in domestic chores; especially among those with busy schedules who need to ensure efficiency and minimize risks of harming delicate fabrics. This document discusses the design and development of an intelligent ironing machine that performs ironing tasks using embedded computing and multi-sensor fabric identification. Unlike traditional irons that depend entirely on the manually chosen temperatures and user discretion, the developed …
Published in International Journal of Electrical and Communication Engineering Technology · Vol. 4, Issue 2, 2026 Read article
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AquaSential: Autonomous UAV-Based Water Quality Monitoring System
Abstract: The increasing occurrence of waterborne health risks and the presence of harmful microorganisms in freshwater environments highlight the need for rapid and continuous water quality monitoring. Traditional laboratory-based testing methods often require significant time and manual sampling, limiting their ability to provide immediate information about changing environmental conditions. This work presents AquaSential, a low-cost, portable, and UAV-ready water quality monitoring system designed for real-time assessment of freshwater bodies. The proposed …
Published in Recent Trends in Sensor Research & Technology · Vol. 13, Issue 2, 2026 Read article
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Characterization of Mechanical and Viscoelastic Properties of Ceramic Nanoparticle-Reinforced Polymer Composites
Abstract: This study examines the mechanical and viscoelastic properties of polymer composites reinforced with ceramic nanoparticles, specifically focusing on enhancing the performance of the material through the incorporation of alumina nanoparticles. The composites were produced by embedding alumina nanoparticles into an epoxy matrix, and their properties were assessed using tensile, flexural, and dynamic mechanical analyses (DMA). The tensile tests showed a remarkable 40% increase in tensile strength and a 35% enhancement …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 71–82 Read article
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Polymer-Based Medical Restraints: Advances in Polymer Chemistry for Enhanced Patient Safety
Abstract: Medical restraints play a crucial role in ensuring patient and staff safety during medical procedures, particularly when dealing with individuals who may be at risk of self-harm or unintentional movement. Traditional restraints, often made from rigid materials or fabric straps, present several challenges, including patient discomfort, pressure injuries, and incompatibility with advanced medical imaging techniques such as MRI and CT scans. Moreover, traditional materials may deteriorate over time, diminishing their …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 153–157 Read article
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A Generative AI Paradigm for a Global Crisis: Redesigning the Sanitary Pad Polymer Lifecycle for Environmental and Public Health in India
Abstract: The sale of disposable sanitary pads, most of which contain non-biodegradable polymers, especially polyethylene (PE), polypropylene (PP) and superabsorbent polyacrylates (SAPs), has led to a souring environmental and population health crisis, especially in India. A linear economic approach of take-make-dispose has resulted in the exponential growth of polymer waste that fully blocks drains, leads to microplastic pollution, and overloads insufficient waste management facilities. Traditional polymers are designed to be permanent …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 1570–1591 Read article
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Synthesis, Characterization, and Biomedical Applications of a Silver Nanoparticle-Coated Chitosan–Fucoidan–Polymer Nanocomposite Loaded with Persea americana Leaf Extract
Abstract: Consuming a natural composite of Persea americana (Avocado) leaf extract and a chitosan and fucoidan form a biodegradable biopolymer matrix–polymer nanocomposite with biomedical applications, this study explored a potential therapeutic method. GC–MS and UV spectroscopy were used to describe the aqueous leaf extract, which was verified by phytochemical screening to contain flavonoids, tannins, phenols, terpenoids, and alkaloids. The chitosan–fucoidan biodegradable polymer matrix served as a biocompatible stabilizing and encapsulating carrier …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 · pp. 130–148 Read article
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Orthostride: An Internet of Medical Things-Enabled Smart Rehabilitation Footwear System for Real-Time Monitor
Abstract: The orthopedic rehabilitation goal of controlled weight bearing, a stable gait progression, and early recognition of hazardous situations for safe mobility is traditionally met through time, scheduled in-clinic observation and clinician induction, and patient report. In this work, Orthostride, a smart rehabilitation footwear prototype intended to augment postoperative and injury-related lower extremity restoration through continuous sensing, embedded decision logic, local feedback, and remote telemetry, is proposed. This system incorporates force …
Published in International Journal of Electronics Automation · Vol. 4, Issue 2, 2026 Read article
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Non-invasive Extraction of Fetal Electrocardiogram and Maternal Electrocardiogram from Mixed Source Signal
Abstract: This paper is to bring in self-regulating methodology to obtain Fetal Electrocardiogram (FECG) and Maternal Electrocardiogram (MECG) from the mixed source signal. The Abdominal Electrocardiogram (AECG) is treated as an input signal to achieve the above-mentioned goal. FECG and MECG can be differentiated according to the power of a signal. FECG are weak signals as compared to that of MECG. But, FECG signals are engrossed in various other interference signals …
Published in Current Trends in Signal Processing · Vol. 6, Issue 3, 2016 · pp. 16–22 Read article
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Implementation and Analysis of Linear Electrical Networks using Interval Arithmetic on FPGA’s
Abstract: Interval arithmetic provides better method for monitoring and controlling errors in scientific calculations. Interval arithmetic can be used to obtain an analysis of linear electrical networks using hardware description language (HDL). In this paper the mean value theorem is used to analyze the circuits and implemented on hardware. The mean value theorem is applied for three different circuits i.e., for first order, second order and third order analog circuits. The …
Published in Current Trends in Signal Processing · Vol. 4, Issue 3, 2014 · pp. 14–21 Read article
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Removal of Blotches and Impulse Noise in Gray Scale Images Using Non-linear Algorithm
Abstract: An image consists of artifact, which appears in an image that is actually not present in the original imaged object. An image artifact (noise) is sometimes the result of improper operation of the imager, and other times a consequence of natural processes or properties of the human body. Blotches (bulk noise) and impulses are the artifacts where blotch can be either bright or dark spots and impulse can be salt …
Published in Current Trends in Signal Processing · Vol. 4, Issue 3, 2014 · pp. 22–27 Read article
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Hand Gesture Detections Using a Force Myography-Based on Wearable Wrist Strap
Abstract: We are familiar with gestures as a nonverbal form of communication and often use it during heated discussions. In this digital word of human-machine interactions, hand gesture is emerged as promising method of interaction. For this interactions, developing a control system for sensing hand gestures would be a primary objective. In this research paper we will be discussing one of such simple yet efficient hand grip and gesture detection method …
Published in Current Trends in Signal Processing · Vol. 11, Issue 2, 2021 · pp. 1–9 Read article
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Theoretical Study of Substituent Effects on Electronic Properties and Polarizability for (2, 5, 24, 27-Tetrahalogen Pentacene) Molecule
Abstract: DFT and semi empirical methods have been carried out studying (2, 5, 24, 27 tetrahalogen pentacen) molecules using the B3LYP functional and the 6-311G (d, p) basis set and AM1 model. Total energy, electronic properties such as; ionization potential, electron affinity, energy gap, dipole moment, polarizability and electronic potential. The calculated ionization potential (6.126 eV) and electron affinity (1.417 eV) of this molecule is in a good agreement with experimental …
Published in Emerging Trends in Chemical Engineering · Vol. 3, Issue 1, 2016 · pp. 1–8 Read article
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TiO2-ZrO2 Supported Nickel Oxide Catalysts for Hydrogenation of Levulinic Acid to -Valerolcatone
Abstract: The Titania-Zirconia (TZ) mixed oxide sample (50:50 wt.% percent) was prepared by a simple coprecipitation method and used as a support for the nickel catalyst. The various loadings of nickel content from 1 to 20 wt.% were synthesized for the production of γ-valerolactone (GVL) from levulinic acid (LA). Among all the tested samples, the 5 wt.% Ni/TZ sample exhibited the 98% conversion of LA and 96% selectivity to GVL and …
Published in Emerging Trends in Chemical Engineering · Vol. 9, Issue 3, 2022 · pp. 35–44 Read article
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Microstructure and Mechanical Properties of Thin Wall Ductile Iron
Abstract: Currently many cast parts are produced in aluminum rather than cast iron, because of the drive to get high strength /weight ratio for application in automobile and aerospace. Ductile Iron casting of approximately 2-3mm section thickness better known as Thin wall ductile iron (TWDI) having high strength /weight ratio and better mechanical properties than Aluminum alloys. The effect of various parameters like, post inoculation, gating and feeding, moulding sand mix …
Published in Journal of Automobile Engineering and Applications · Vol. 4, Issue 2, 2017 · pp. 35–39 Read article
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Mechanical Properties of Al6061-Al2O3 Metal Matrix Composite Using Die Casting Technique
Abstract: 6061Al - Al2O3 Metal matrix composites are applied as conventional materials in the domain of aerospace, automotive and marine applications to enhance the physical properties. The present work aimed to prepare metal matrix composite using 6061Al as the matrix material. Particulates of Al2O3 with 40 µm were reinforced using die casting technique. Further level of reinforcement is being varied from 0-16wt% in steps of 4wt%. Microstructural characterization has been conducted …
Published in Journal of Automobile Engineering and Applications · Vol. 5, Issue 3, 2018 · pp. 11–20 Read article
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Automotive Gearbox Design Based on Reliability
Abstract: A company’s reputation is very closely attached to the reliability of its products. The more reliable a product is, the more likely the company is to have a good reputation. A reliable product may not drastically affect customer satisfaction in a positive manner. However, an unreliable product will definitely attract customer dissatisfaction; thus, high reliability is a quite essential requirement for customer satisfaction. Design for reliability refers to the ability …
Published in Journal of Automobile Engineering and Applications · Vol. 2, Issue 1, 2015 · pp. 44_47 Read article
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Identification of Some Imported Lubricating Oil Additives Used in Libya and Synthesis of the Most Consumed Ones from the Local Raw Materials
Abstract: This paper presents the identified six additives imported under trade names used in the lubricating oil blending factory of A-Zawia-Libya. Their structures have been completely confirmed by examining their physical properties and using modern analytical techniques such as nuclear magnetic resonance spectroscopy (NMR), infra-red (IR), atomic absorption (AAS) and gas chromatography (GC). The synthesis of most important and more consumed additives in lubricating oils in Libyan oil industry from local …
Published in Journal of Catalyst & Catalysis · Vol. 3, Issue 3, 2016 · pp. 10–17 Read article
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A One-Step Selective Oxidation of Benzene to Phenol over CuCr2O4 Spinel Nanoparticles Catalyst with Air as Oxidant
Abstract: in presence of the cationic surfactant, cetyltrimethylammonium bromide and hydrazine. Detailed characterization of the material was carried out by XRD, BET, ICP-AES, SEM and TEM. XRD revealed the exclusive formation of CuCr2O4 spinel phase and TEM showed the formation of 30–50 nm particle size. The catalyst was highly active for selective oxidation of benzene to phenol with air as oxidant. Influence of reaction parameters were investigated in detail. The advantages …
Published in Journal of Catalyst & Catalysis · Vol. 1, Issue 1, 2014 · pp. 1–7 Read article
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Monitoring and Forecasting in Construction Projects Using Time Buffer
Abstract: The key to project management is effective performance monitoring and forecasting. The existing methods using input- output cash flow, earned value, etc. do not differentiate between work done on the critical path and work done on non-critical paths. Such methods mask the real situation and mislead the project team because progress on one path often compensate for the delay in other. The paper proposes a more effective method to facilitate …
Published in Journal of Construction Engineering, Technology & Management · Vol. 6, Issue 2, 2016 · pp. 9–16 Read article
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Strength Characteristics of Recycled Aggregate Concrete Produced with Portland Slag Cement
Abstract: At present, the demand of natural resources is increasing trend because of the rapid growth of the construction industry. The amount of construction and demolition waste is also increasing day by day. This affects the environment very badly. To protect the environment, reuse of the construction and demolition waste (C&DW) is one of the important steps. The aim of this day is to use C&DW as recycled coarse aggregates for …
Published in Journal of Construction Engineering, Technology & Management · Vol. 6, Issue 1, 2016 · pp. 70–77 Read article