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165 articles for “loss factor”
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Review on Unconstrained Layer Damping Treatment and Its Applications
Abstract: The unconstrained layer damping is also called as free layer damping. It is formed by applying a damping material on the surface of a structure. This treatment was used to reduce and control the vibrations and noise in structures. This paper presents a review on unconstrained layer damping treatment on beams using different damping materials. The objective is to present various aspects and relative merits of unconstrained damping treatment use …
Published in Journal of Experimental & Applied Mechanics · Vol. 11, Issue 1, 2020 · pp. 16–19 Read article
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Comparison of Central Inverter and String Inverter for Solar Power Plant: Case Study in Vietnam
Abstract: AbstractSolar power technology is developing rapidly in Vietnam and investors are interested in developing the solar power plant. Comparison of the choice of grid-tie inverter technology between central inverter and string inverter can affect the change of investment cost, operation and maintenance costs, and operation efficiency of solar power plants in the real condition. However, most of solar power plants in Vietnam are currently in the design stage, so experience …
Published in Journal of Nuclear Engineering & Technology · Vol. 9, Issue 3, 2019 · pp. 11–23 Read article
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Dielectric Properties of Reduced Graphene Oxide with Nickel Cobalt Ferrite and Nickel Zinc Ferrite Epoxy Nanocomposites
Abstract: In this work, two systems of the composite were prepared using NiCoFe and NiZnFe with reduced graphene oxide(rGO) epoxy and the samples were subjected to electrochemical impedance spectroscopy (EIS). The Quality factor and loss tangent values of the composite was found out as a function of frequency. The modified ferrite-graphene-epoxy blends show dielectric loss and Quality factor values at low frequency. The incorporation of graphene aims to improve electrical conductivity, …
Published in Journal of Polymer & Composites · Vol. 11, Issue 11, 2023 · pp. 28–37 Read article
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Analysis of Losses in Geostationary Intersatellite Optical Wireless Communication Links
Abstract: The effective method to create a link between satellites is inter-satellite communication. Data is transmitted from one side to the other via a laser in this groundbreaking method. Optical networks, which offer continuous data transport over vast distances, are networks with high bandwidth efficiency. Inter-satellite optical wireless communication (Is-OWC) is a common method to transfer high-speed data between various satellites in free space. Is-OWC networks have undoubtedly innovated satellite communications …
Published in International Journal of Satellite Remote Sensing · Vol. 2, Issue 2, 2024 · pp. 1–18 Read article
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Solutions to Overcome SQ Limits for Modelling Efficient Solar Cell and Introduction to Novel QD-MJSC Design
Abstract: AbstractHarnessing the solar power with maximum energy conversion efficiency can fulfill every electrical demand of the world. Depending on the designing of models, the commercial solar cell is being tested. To harness the entire energy on optimum cost, the material is selected in such a way that the overall outcome become beneficiary. In recent market available solar cell, there are still more criteria to be taken care of to improve …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 10, Issue 3, 2019 · pp. 37–46 Read article
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Mechanical Performance Degradation of Naturally Aged Nitrile Butadiene Rubber in Low Frequency Range...
Abstract: For good mechanical design, damping is often still an invisible requirement. Nitrile Butadiene Rubber (NBR) has a wide range of applications as a damping and sealing material. To offer the long-term service of NBR, it is important to estimate the degradation of modal properties under complex mechanical and environmental loading. The present work aims to correlate the experimental data with generalized higher-order Maxwell models and curve fitting techniques to find …
Published in Journal of Polymer & Composites Read article
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Power loss by blade deflection in flexible rotor wind turbines
Abstract: Effects of deflection onto the performance of small wind turbines with flexible rotor-blades have been studied and analysed. The goal of the study has been the evaluation of the wind turbine output power loss due to angular deflection because of bending effects caused by gravity. Wind turbine blades have been deformed under constant load at the tip of the blade for periods up to 40 days. Deformation process has been …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 12, Issue 3, 2021 · pp. 13–29 Read article
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Piezo in Implant Surgery: A Literature Review
Abstract: Dental Implants are Titanium cylinders that are widely used by dentists as prosthesis to replace damaged or lost tooth. The process where the implant locks and attaches itself with the bone is termed as osseointegration. Factors like bone quality and quantity, primary stability of implant, surface characteristics of implant are some of the factors that determine osseointegration of the implant.Acceleration of osseointegration may depend on the removal of negative tissue …
Published in Research and Reviews: A Journal of Dentistry · Vol. 14, Issue 2, 2023 · pp. 17–20 Read article
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Biodiversity Loss and Its Impact on Dietary Land Diversity and Nutritional Status: A Comprehensive Review
Abstract: Habitat destruction, climate change, overexploitation, and agricultural intensification contribute to the current predicament in global food systems: Loss of biodiversity means less plant and animal species to be utilized. This study examines and synthesizes the available literature in PubMed and Scopus on how losses in biodiversity adversely affect people’s diets and nutritional status, especially in the case of malnutrition and missing key micronutrients of certain demographic cohorts. Principal factors are …
Published in International Journal of Land · Vol. 2, Issue 2, 2025 · pp. 25–30 Read article
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A Study of Diabetic Retinopathy using Convolutional Neural Networks
Abstract: This paper focuses on study of rapid detection of retinopathy, since prompt therapy can help decrease as well as possibly eliminate loss of eyesight. Furthermore, automatically locating portions of the optic picture which may include lesions could aid professionals in their identification function. Retinopathy is a frequent diabetic condition that comprises changes in the retinal blood capillaries. Such changes may lead capillaries to rupture as well as release fluid, causing …
Published in Journal of Instrumentation Technology & Innovations · Vol. 12, Issue 2, 2022 · pp. 1–6 Read article
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Design and Performance Analysis of Silicon Photonic Waveguides for High-Speed Optical Communication
Abstract: The exponential growth of data traffic in data centers and high-performance computing systems necessitates a paradigm shift from conventional electrical interconnects to high- speed, low-power on-chip optical interconnects. Silicon Photonics (SiP) is the leading platform for this transition due to its compatibility with CMOS manufacturing and the high- index contrast between silicon (Si) and silicon dioxide (SiO 2 ). This paper details the design, simulation, and comprehensive performance analysis of …
Published in International Journal of Optical Innovations & Research · Vol. 3, Issue 2, 2025 · pp. 29–37 Read article
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A New Approach for Optimal Rating and Location of Substations
Abstract: This paper is based upon the software developed using genetic algorithm for optimal location of Sub-station regarding its place and size. Developed method is applied on practical network and the results obtained. In this paper an attempt has been made to solve the problem of the distribution network and developing an appropriate plan to trace the optimal location for placing new substation. A GA program has been developed and implemented …
Published in Journal of Power Electronics and Power Systems · Vol. 3, Issue 2, 2013 · pp. 1–7 Read article
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Design of Lowpass Filter with Improved Roll Off Factor using Coin Shape Fractal DGS
Abstract: This paper presents the design of lowpass planar filter with improved roll of factor. To improve the performance figures of filter such as return loss, roll off factor, compactness, etc. coin shape fractal defected ground structure (DGS) has been embedded in the ground plane of the filter. The proposed filter gives improvement of roll off factor about 5 times as compared to traditional filter design technique. Laboratory prototypes of all …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 7, Issue 1, 2019 · pp. 1–9 Read article
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Optimization of dry sliding wear behaviour of AA6061 (as cast) and AA6061 (HT) aluminium alloy using design of experiment approach
Abstract: The dry sliding wear behaviour of AA6061 (as cast) and AA6061 (HT) aluminium alloy has been optimized using Taguchi Orthogonal array design. Experiments were conducted to study the influence of various parameters like, load(N), sliding speed(m/sec) and sliding distance on the dry sliding wear behaviour of both AA6061(as cast) and AA6061(HT) aluminium alloy using L9 orthogonal array design. The experiments were carried out to determine the significant controlling parameter affecting …
Published in Journal of Materials & Metallurgical Engineering · Vol. 9, Issue 2, 2019 · pp. 1–6 Read article
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Revolutionizing EV Battery Charging: Enhancing Power Factor with Modified Bridgeless Landsman Converter
Abstract: The work focuses on the design and implementation of an innovative battery charger for electric vehicles (EVs) with a significant improvement in the power factor at the front end. The existing EV chargers often suffer from poor power factor, leading to increased losses and reduced efficiency. An altered Landsman power factor correction (PFC) converter is used in place of the traditional diode bridge rectifier (DBR) in order to solve this …
Published in Journal of Power Electronics and Power Systems · Vol. 14, Issue 2, 2024 · pp. 12–20 Read article
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Optimum Circumscribing Circle Division Method for Getting Maximum Fill Factor in Transformer Core
Abstract: As far as the optimum design of transformer is concerned, researchers generally concentrate on minimizing cost, no load and load losses etc. by choosing K-factor, Flux density, Current density etc. as design variables. But, the design of core has remained an unexplored area. Transformer manufacturing industry uses traditional technique to find out the core design dimensions. However, in that method, the fill factor for the desired number of steps is …
Published in Journal of Electronic Design Technology · Vol. 6, Issue 2, 2015 · pp. 13–17 Read article
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Feasibility Analysis of Advanced Modulation Techniques for FSO in Different Weather Conditions
Abstract: AbstractIn recent times, the ever increasing demand of higher bandwidth and more data rate had led researchers to explore new dimensions in wireless technology. One of the most promising fields is that of free-space optics (FSO). Light is used to carry information through space with the physical medium being the air. This paper investigates the effect on Q-factor and power loss for various advanced modulation schemes under different weather conditions. …
Published in Trends in Opto-electro & Optical Communication · Vol. 6, Issue 2, 2016 · pp. 1–7 Read article
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Review on Hair Cosmetics on Flaxseeds
Abstract: Worldwide cultivation of flaxseed (Linum usitatissimum), a significant medicinal oil seed crop, is practiced. Flaxseed belongs to the Linaceae family.Because of its biologically active components, which include lignans, dietary fiber, and alpha-linolenic acid, flaxseed has garnered interest as a functional food ingredient recently.Worldwide, Flaxseed is cultivated not only for its oil and fiber but also for its nutritional and potential therapeutic benefits. The dietary fiber present in flaxseed supports overall …
Published in Research and Reviews : A Journal of Ayurvedic Science, Yoga and Naturopathy · Vol. 12, Issue 2, 2025 · pp. 38–46 Read article
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Evaluating the Mechanical Attributes of Flexible Polyurethane Foam Produced at Various Pressures
Abstract: This study explores the impact of different pressures (1atm and 0.75atm) on the mechanical characteristics of flexible polyurethane foam, employing varied compositions (0 - 40ppw) of CaCO3. Foam production occurred under two distinct pressure conditions: vacuum pressure and atmospheric conditions. Mechanical properties, including durability, compression set, resilience, support factor, elongation, hysteresis loss, bounce characteristics (including number of bounces), hardness, thickness loss value, elongation percentage, and tear resistance strength, were quantified …
Published in Journal of Polymer & Composites · Vol. 12, Issue 2, 2024 · pp. 59–74 Read article
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Study Analysis of Decisive Cost and Quality
Abstract: In this article, we discuss the beneficial level of a machine according to its features. Here, two methodologies are used to take decision according to some internal features and external aspects. First use analytical hierarchy process method for survey. Generally, parameters generated by analytical hieratical process (AHP) is preferred by consumers. Nowadays quality is most preferable parameter (in cutting machine use 46% approximate). Second one is productivity (33% approximate); we …
Published in Journal of Production Research & Management · Vol. 9, Issue 2, 2019 · pp. 20–28 Read article