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1373 articles for “S/N ratios”
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Design and Analysis of Bootstrap Sample and Hold Circuit
Abstract: This paper describes the design and implementation of open-loop sample and hold-circuit using bootstrap technique, which can be used as front end sampling circuit for high-speed analog-to-digital converters. Different design criteria, viz., speed, power, resolution, linearity, noise and harmonic analysis have been dealt with. Both theoretical analysis and simulation results are carried out. The bootstrap circuit is designed and then compared in a 0.18 and 0.35 μm CMOS process. It …
Published in Journal of Electronic Design Technology · Vol. 5, Issue 3, 2014 · pp. 7–14 Read article
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Comparison Between Theoretical, Analytical and Experimental Vibration Analysis Method and Different Circular Tile Cutter by Using FFT and ANSYS
Abstract: Circular cutters with uniform radial cracks are extensively used in the cutting processes. Unwanted noise, vibration and accidental failure associated with the cutting process have become an important economic and technological problem in the industry. The knowledge of natural frequencies of components is of great interest in the study of response of structures to various excitations. Hence, it is important to study a circular tile cutter with central hole, which …
Published in Journal of Mechatronics and Automation · Vol. 2, Issue 3, 2015 · pp. 31–42 Read article
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Heat Transfer and Exergy Analysis of Methane-Air Flame Impinging on Plane Surfaces
Abstract: Exergy and heat flow have been numerically investigated for flame impinging on flat circular plates. The maximum work available when the system is brought to thermodynamic equilibrium state with its surrounding is known as the exergy of a system. This state of equilibrium of the system depends on the pressure, temperature, and composition of environment. Efficiency based on exergy is otherwise known as the second-law efficiency which measures the usefulness …
Published in Recent Trends in Fluid Mechanics · Vol. 9, Issue 1, 2022 · pp. 13–24 Read article
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Estimation of Population Mean Using Ratio cum Product Imputation Techniques in Sample Survey
Abstract: In this paper, three generalized classes of ratio cum product compromised imputation techniques in single phase sampling scheme and its properties have been studied. Their mean square error (MSE) expressions and percentage relative efficiency (PRE) are compared with the sample mean, ratio, compromised and Ahmed method of imputation in case of missing data, and necessary conditions are derived. Further, theoretical results have been verified through empirical studies with the help …
Published in Research & Reviews : Journal of Statistics · Vol. 7, Issue 1, 2018 · pp. 38–49 Read article
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Evaluation of Mechanical Property and Optimization of the Dry Sliding Wear Behavior of Carbon Black-Alumina-Epoxy-Glass Composite by using Design of Experiments
Abstract: The research work is mainly focused on investigating the effects of wear parameters: filler content (0%, 4% CB, 4% Al2O3,and 2% CB + 2% Al2O3), applied load (4.905, 9.810, 14.710, and 19.62 N), sliding distance (20, 30, 40, and 50 mm) by using Design of Experiments (DOEs) approach. The experimental results were analyzed using MINITAB V16 scientific graphical and data analysis software. Signal-to-Noise (S/N) ratio, analysis of variance (ANOVA) proved …
Published in Journal of Materials & Metallurgical Engineering · Vol. 4, Issue 2, 2014 · pp. 21–31 Read article
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Ground Based Study of the Effect of Open and Close Chamber Condition on Banana Ripening Process
Abstract: Normal 0 false false false IN X-NONE X-NONE Level of O2 and CO2 plays an important role on ethylene biosynthesis during ripening of the climacteric fruit. Low level of O2 and high level of CO2 will affect ACS and ACO enzyme activities and will impede ethylene production. Thus, reduce ethylene level will eventually delay fruit ripening process. Pre-climacteric banana fruits (Musa sp.) were chosen based on ripening level, size, shape, …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 2, Issue 2, 2012 · pp. 16–25 Read article
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Morphological and Biomass Performance of Indigenous Agroforestry Tree Species Seedlings under Different Provenances at Nursery Level, in Central Ethiopia
Abstract: Multipurpose trees are significantly important for climate change resistance in such a way that they contribute to both climate change adaptation and mitigation. In addition, they have important economic and social benefits for the livelihoods of farmers and also have a considerable effect on the GDP of the country. Therefore, to improve species’ adaptation in specific, site genetics fitness is an important factor. Therefore, the objective of the research was …
Published in Research & Reviews : Journal of Botany · Vol. 11, Issue 3, 2022 · pp. 47–58 Read article
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Utilizing Machine Learning to Evaluate the Connection between Poisson's Ratio and the Petrophysical Properties of Reservoir Rocks
Abstract: The Poisson's ratio is a crucial cornerstone, illuminating our understanding of geomechanical behaviour in wells during the dynamic drilling process and the inspiring recovery journey. This research rigorously employs machine learning methods to analyse the significant impact of geophysical parameters on the Poisson ratio in hydrocarbon reservoirs found in oil fields. The analysis utilized data from multiple oil and gas fields, highlighting the crucial relationships between the Poisson ratio, the …
Published in Journal of Petroleum Engineering & Technology · Vol. 15, Issue 2, 2025 · pp. 33–43 Read article
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Modelling and Simulation of a Combined System Geothermal Binary Plant and Parabolic Solar Concentrator
Abstract: The present work describes a new prototype that uses the concentrated solar radiation to improve the performance of geothermal power plants. Current methods of heat recovering have been used to reduce the amount of fossil fuel used to produce vapor or to increase gas pressure and temperature, depending on the type of system; however, concentrated solar energy is an unknown resource that may help to increase vapor production at a …
Published in Journal of Thermal Engineering and Applications · Vol. 8, Issue 1, 2021 · pp. 23–46 Read article
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The Use of Satellite Imagery in Estimating Aboveground and Belowground Biomass of Aquatic Vegetation, The Food Source of Waterfowl
Abstract: 800x600 In this research we studied the possibilities to estimate the biomass of aquatic vegetation in a shallow lake using IKONOS image. IKONOS-2 image, with one infrared and three visible bands, was obtained on the 19th of August 2005. The study was carried out in the Lauwersmeer (The Netherlands) that Bewick’s swans use as an autumn staging site to forage on the belowground biomass of fennel pondweed. This research gave …
Published in Journal of Remote Sensing & GIS · Vol. 6, Issue 2, 2015 · pp. 33–40 Read article
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A Review on Corticosteroids: A Controversial Role in COVID-19
Abstract: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the known causative agent of coronavirus disease 2019 (COVID-19) which emerged first in Wuhan Province of China has caused catastrophic health, social, and economic crisis worldwide. Several drug therapies were used with corticosteroids being one of them, believing to exert an effect in controlling the ARDS. Use of corticosteroids in patients with COVID-19 is common in clinical practice, but the efficacy and role …
Published in Research and Reviews: A Journal of Health Professions · Vol. 12, Issue 2, 2022 · pp. 11–16 Read article
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A Suboptimal Nonlinear Duty-cycle Modulation Scheme
Abstract: The DCM (duty-cycle modulation) technique is increasingly used in industrial electronics applications, including instrumentation systems, interfacing drivers and signal transmission chains. However, in existing research works related to new applications of DCM technique, the linear approximation policy is used for the sake of structural simplicity and low implementation cost, at the expends of rigorous analysis and low approximation errors. In this paper, a suboptimal nonlinear DCM scheme is developed. It …
Published in Journal of Electronic Design Technology · Vol. 7, Issue 1, 2016 · pp. 22–31 Read article
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Polymer Nanocomposite for Electronic Applications
Abstract: Polymer matrix nanocomposites are studied in this topic to understand commercial application in batteries, capacitor, sensing, radio frequency apparatus, antennas, non-resonant device, high quality filters, and solar cells. Act of substrate and fillers contribute interlinked electro-optic transduction ratio. Ceramic nano-composers are CuZnFe2O4, ZnO, and graphene oxide. Different polymerization techniques applied to produce compositions on conducting polymer. Polymer nanocomposites used to apply at electrochemical storage of energy. Bio-safe characteristics of biopolymer …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 22, Issue 3, 2020 · pp. 16–20 Read article
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Rheological behaviour analysis of prepared nano-cutting fluids from Al2O3 and TiO2
Abstract: In this research paper, an attempt has been made to characterize and analyse the rheological properties of two samples of nano-cutting fluids. Nanoparticles of Al2O3 and TiO2 were characterized by SEM and EDS. The high peaks showed the respective presence of aluminium, oxygen for alumina and titanium and oxygen for titanium dioxide. The two samples of nano-cutting fluids were prepared. Alpha alumina, α-Al2O3 nanoparticles were used for the preparation of …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 329–338 Read article
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Suitability of Crushed Ceramic Tiles as Fine Aggregates in Cement Mortar
Abstract: Recycled aggregates shall make a vital contribution towards the reuse of construction demolition waste which is otherwise dumped indiscriminately. The technical feasibility of utilization of crushed waste ceramic tiles as fine aggregates in cement mortar isstudied.Physical characterization and comparison of the ceramic fine aggregates (CFAs) with natural fine aggregates(NFAs) was carried out and strength properties of cement mortar with ceramic fine aggregate were studied.The result was promising for a replacement …
Published in Recent Trends in Civil Engineering & Technology · Vol. 4, Issue 1, 2014 · pp. 33–37 Read article
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Optimization of Machining Parameters for Titanium Alloy (Grade-5) Using CBN Tool Insert with Different Nose Radius Using Taguchi Technique
Abstract: In this research paper, focus is on the machinability study of titanium (grade-5) alloy using the CBN cutting tool inserts having nose radius of 0.4 mm and 0.8 mm. Taguchi method provides a simple, systematic and efficient methodology for optimization of the cutting parameters. Taguchi design of experiment approach has been used for planning the experiments and analysis of experimental data obtained. An orthogonal array L27 (313), the signal-to-noise (S/N) …
Published in Trends in Mechanical Engineering & Technology · Vol. 2, Issue 2, 2012 · pp. 17–31 Read article
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Effect of Barrel Radius on the Billet in the Upsetting Process
Abstract: Upsetting is of significance for hypothetical and experimental studies in a metal forming procedure. The need of friction between the dies and the work piece leads to cylinder barreling and lateral expansion of the specimen is at extreme at equatorial section and least at the end. This work utilizes Taguchi method with the up gradation of the procedure parameter in charge of the non-uniform hardness distribution inside the tube shaped …
Published in Recent Trends in Fluid Mechanics · Vol. 3, Issue 3, 2016 · pp. 23–30 Read article
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Quantitative Mass Balance Modelling for the Synthesis and Production of Ten High-Volume Insecticides
Abstract: This study presents a detailed quantitative mass balance analysis for the industrial synthesis and production of ten high-volume insecticides: acequinocyl, acetamiprid, acynonapyr, alpha-cypermethrin, benzpyrimoxan, bifenazate, bifenthrin, bistrifluron, broflanilide, and bromofos, focusing on material flows, process efficiencies, and environmental implications. These compounds, spanning diverse chemical classes like neonicotinoids, pyrethroids, and meta-diamides, are essential for crop protection but pose challenges due to resource-intensive syntheses and waste generation. For each insecticide, standardized manufacturing …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 16, Issue 3, 2025 · pp. 36–55 Read article
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Fabrication and Characterization of Copper Nanowires: An Overview
Abstract: Copper (Cu) is one of the most important metals in modern electronic technology. Keeping in view its role in nanoelectronics, we have fabricated copper nanowires of diameters 100 and 200 nm using Anodic Alumina and polymer membranes as templates. Template-based growth of copper nanowires has been realized using conventional electro deposition technique in an electrochemical cell designed in our laboratory. Fabrication of copper nanowires is one of the most important …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 1, Issue 1, 2011 · pp. 1–16 Read article
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Linear Stability in the Restricted Three-Body Problem with Oblate Primaries
Abstract: We present a study of the linear stability which is based on numerically we find that the critical mass ratio of the primaries forms a smooth surface and absence that c decrease as oblate parameter increase. In the restricted three-body problem the collinear points are unstable and equilateral triangular points are stable for the mass ratio . The numerical calculations give a thorough explanation of how changes in …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 15, Issue 2, 2026 Read article