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1886 articles for “amanyaster@gmail.com (Amanuel Afeto)” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Combining Co-operative Diversity in Wireless Communication
Abstract: Wireless devices cannot employ Multiple Input Multiple Output (MIMO) due to hardware or size limitation. Wireless device should replicate their single antenna virtually to act like MIMO system for better performance. This process is possible through a new system known as co-operative communication. In this system, the terminal or nodes combined to transmit the signals to follow an antenna array and form the diversity. Diversity is nothing but transfer of …
Published in Current Trends in Signal Processing · Vol. 3, Issue 1, 2013 · pp. 1–7 Read article
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A Comparative Study of Value Added of Selected Indian Automobile Companies
Abstract: The purpose of this research paper is to evaluate the performance of five selected automobile companies by comparing their Value Added. The Value Added of the selected automobile companies from 2011-12 to 2020-21 is calculated based on the audited annual reports. The investigation aims to shed light on the relative competitiveness and performance of the selected companies in the Indian automotive sector by comparing key performance indicators like revenue, profitability, …
Published in Journal of Automobile Engineering and Applications · Vol. 10, Issue 3, 2023 · pp. 9–14 Read article
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Metal Matrix Composites: Materials with the best property combination
Abstract: AbstractMetal matrix composites have been emerging out to be the most sought after materials in the field of Metallurgy and Materials Engineering. The basic driving force behind their wide applications is the fusion of ductile nature of metallic constituent and strong ceramic phases. This combination would always yield a structure with good toughness and longer service life. Aluminum-Silicon Carbide (SiC/Al) is a metal matrix composite that combine the properties of …
Published in Journal of Materials & Metallurgical Engineering · Vol. 8, Issue 3, 2018 · pp. 13–18 Read article
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Comparison of Bond Strengths of Nano and Microhybrid Flowable Composites for Orthodontic Bonding: An Invitro Study
Abstract: Introduction: When the orthodontic brackets are bonded to the etched enamel, the ideal orthodontic adhesive should have optimal bond strength and be able to withstand masticatory forces as well as orthodontic forces. At the same time, when the treatment is completed, the bracket should debond without causing any damage to the enamel. There have been many recent advances in composites in general and their applications in orthodontic use is questionable. …
Published in Journal of Polymer & Composites · Vol. 10, Issue 3, 2022 · pp. 1–8 Read article
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Fabrication and Surface Modified Non-woven Calotropis gigantea Fiber Mat Reinforced Polypropylene Composites by Film Stacking Method
Abstract: Nowadays, there is a growing environmental consciousness and awareness about the need for sustainable development, which has led to growing interest in using natural fibers as reinforcement in polymer composites for synthetic fiber substitution. The current work deals with the effects of Calotropis gigantea fiber (CGF) content and chemical modification of CGF mats by treatment with sodium dodecyl sulfate (SDS) and SDS-pretreated benzoyl chloride on the fundamental properties of CGF-filled …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 9, Issue 1, 2022 · pp. 10–22 Read article
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Performance Comparison of FBG as Dispersion Compensator with Different Apodization in an Optical Fiber Link
Abstract: AbstractNowadays, optical communication is a popular technique to transmit the data. In daily life, we share our useful data by using optical network but dispersion is the main performance limiting factor. However, the compensation of dispersion by dispersion compensating fiber (DCF) and fiber Bragg grating (FBG) can boost the system significantly. This proposed work investigates and analyzes the performance of optical transmission system at 1550 nm using FBG as dispersion …
Published in Trends in Opto-electro & Optical Communication · Vol. 8, Issue 2, 2018 · pp. 6–12 Read article
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Analysis of Dispersion Compensation System for PON using Different Schemes
Abstract: In this paper, dispersion compensation techniques are discussed for better communication. Different schemes like pre-compensation, post- compensation and symmetrical compensation of DCF with NRZ and Manchester modulation format. To compensate the dispersion of fiber, DCF is used. Simulations have been analysed by using OptiSystem 7.0 simulator. Results are compared in terms of BER, Q-factor and total received power.Keywords: Dispersion Compensation, Dispersion Compensation Fiber (DCF), Passive Optical Network (PON), Q-factor, BER.Cite …
Published in Journal of Communication Engineering & Systems · Vol. 9, Issue 3, 2019 · pp. 28–34 Read article
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Artificial Intelligence and Constitutive Modeling Equations for Predictive Design of High-Performance Polymer Composites
Abstract: Growing polymer composite applications demand accurate mechanical prediction, yet complex interactions and conventional constitutive models limit predictive capability and require extensive calibration. To report these challenges, this research recommends a combined Artificial Intelligence (AI) and constitutive modeling approach based on an Enhanced Tasmanian Devil Optimizer-tuned Residual Neural Network with Multilayer Perceptron (ETDO-ResNet-MLP) for the predictive design of high-performance polymer composites. The study uses a publicly available Polymer Composite Property Dataset …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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Development and Multiscale Characterisation of a Sustainable Hybrid Polymer–Cementitious Composite
Abstract: The development of sustainable polymer–cementitious composites has gained increasing attention as a strategy for reducing virgin resource consumption while improving the mechanical and functional performance of cement-based materials. This study investigates a hybrid composite incorporating sugarcane bagasse ash (SCBA), distilled sewage water (DSW), styrene–butadiene rubber (SBR), and polypropylene (PP) fibres. Four mixtures, namely C0–C3, were developed by progressively increasing SCBA from 0 to 15%, DSW from 0 to 20%, SBR …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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An Approach to Design a Compiler in Context of Lexical Analyzer (Scanner) and Parser Generation (Parser) Followed by Non-optimized Intermediate Code Generation using Compiler Construction Tools
Abstract: It is very tedious and lengthy task to write a compiler. To realize the various phases of compilers we can use some specific tools. These tools are called compiler construction tools. Furthermore, we call it as compiler-compiler, compiler-generators, or translator writing system. A mixture of compiler building tools are Scanner generator —it generates lexical analyzers. The patterns specified to these generators are in the type of regular expressions. The LINUX …
Published in Journal of Advances in Shell Programming · Vol. 1, Issue 1, 2014 · pp. 1–8 Read article
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Comparative Study on Various Security Algorithms in Cloud Computing
Abstract: Cloud computing is a model for enabling, convenient, network access to a shared pool of configurable computing resources that can be rapidly provisioned and released with minimal management effort or service provider interaction. It is often provided "as a service" over the Internet, remote access server typically in the form of infrastructure as a service (IaaS), platform as a service (PaaS), or software as a service (SaaS). This paper deals …
Published in Recent Trends in Programming languages · Vol. 2, Issue 1, 2015 · pp. 1–6 Read article
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Comparative Analysis of Vapour Compression Mini Ice Cream Plant by Using Different Size Capillary Tubes
Abstract: Abstract An experimental set up is made for comparative analysis of vapour compression mini ice cream plant by applying different size capillary tubes. The experiments were performed and results were recorded for comparing the best unit. The capillary tube was formed in coil shape having different inner diameters such as 0.79 and 1.12 mm. The pressure at suction and discharge of capillary were recorded to evaluate the cycle COP, power …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 3, Issue 3, 2016 · pp. 30–34 Read article
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Estimation of Oxygen and Carbon Dioxide Compositions in Coal Combustor: CFD Approach
Abstract: The present work is based on the software ANSYS FLUENT Workbench 15.0. This approach aims to provide an improved estimation of O2 and CO2 compositions from combustion of pulverized coal when the coal was injected pneumatically. This paper presents state of art in the field of pulverized coal combustion using computational fluid dynamic (CFD) approach. The mathematical models used for the combustion of pulverized coal includes realizable K-ɛ model for …
Published in Recent Trends in Fluid Mechanics · Vol. 2, Issue 3, 2015 · pp. 51–55 Read article
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Mechanical Characterization of Glass Fiber Reinforced Polyester Composites Modified with Silane Treated Alumina Nanofibers
Abstract: Alumina nanofibers pristine and vinyl silane treated are used as nanofillers in polyester matrix reinforced with woven glass fibers at loading levels of 0.25 w%, 0.5 wt%, 0.75 wt%, and 1.00 wt% and the static mechanical properties are evaluated. The effect of silane treatment on the mechanical behavior, interface damage behavior for these composites is compared. The tensile strength of composites increased with addition of alumina nanofibers and a consistent …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 25, Issue 1, 2023 · pp. 1–19 Read article
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Dust Acoustic Solitary Waves in a Five Component Plasma-Application to Comets
Abstract: We have studied the characteristics of the Dust Acoustic Solitary Wave (DASW) in a five component cometary plasma composed of two components of electrons (one hotter and one colder), hydrogen ions and a pair of oppositely charged dust particles (heavier ions). The Korteweg – deVries wave equation has been derived for the system and its solitary wave solution obtained. The dust acoustic solitary wave amplitude is almost a constant with …
Published in Research & Reviews : Journal of Physics · Vol. 8, Issue 2, 2019 · pp. 44–51 Read article
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Competency of Natural Fiber Based Eco-Friendly Friction Lining Composites Over the Conventional Friction Material
Abstract: The Braking system is important system of automobiles and is responsible for providing better performance and safety. A Millions of automobiles are frequently decelerated and stopped at heavy traffic zone. Overall performance of vehicle braking system depends on braking conditions and brake material. All friction based application releases wear products; either gaseous form or particulate matter form and braking system is prime source of non exhaust particulate matter emission. The …
Published in Journal of Polymer & Composites · Vol. 9, Issue 4, 2021 · pp. 57–65 Read article
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Advancements in graphene reinforced metal matrix composites: A comprehensive review
Abstract: The Present pollution norms insist automobile manufacturers to make use of ultra-high specific strength materials i.e., materials ahead of conventional metal matrix composites (MMCs) with micro-sized reinforcements. With the advent of nanomaterials, nanocomposites are being developed with properties that overcome the limitations for metals or composites with micro-sized reinforcements. In recent years, the family of graphene-based materials, in particular, graphene nanoplatelets (GNPs) reinforced MMCs offering promising solutions to revolutionize the …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 177–189 Read article
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Organometallic Osmium Compounds in Cancer Therapy
Abstract: The exploration of organometallic complexes with osmium as potential anticancer agents was indeed an area of ongoing research. These complexes were being investigated for their unique properties and mechanisms of action against cancer cells. However, it’s essential to note that the field of scientific research is dynamic, and new findings may have emerged since then. Organometallic complexes with osmium can be designed to exhibit specific features that make them promising …
Published in International Journal of Advance in Molecular Engineering · Vol. 1, Issue 2, 2023 · pp. 01–25 Read article
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Study on Cloud Computing’s Deployment Models
Abstract: Cloud computing represents a significant technological advancement in the information technology industry. It is one of the fastest-growing technologies, where computing resources are managed and allocated across the globe via the internet. Today, cloud computing is a key topic in many computer science curricula due to its extensive impact on various computing domains, particularly big data, which would be impossible without cloud computing. Cloud computing is an internet-based technology that …
Published in Current Trends in Information Technology · Vol. 14, Issue 3, 2024 · pp. 26–33 Read article
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Hybrid Approach for Community Detection Using Deep Learning Techniques
Abstract: Community detection in complex networks is a fundamental problem with applications across diverse domains, ranging from social networks to biological systems and beyond. Traditional methods based on graph theory have been widely used for identifying communities within networks. However, the intricate and evolving nature of modern networks demands more sophisticated approaches. This research work proposes a hybrid approach that combines the strengths of deep learning techniques with traditional community detection …
Published in Recent Trends in Electronics Communication Systems · Vol. 11, Issue 3, 2024 · pp. 18–26 Read article