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1389 articles for “S/N ratios”
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Heterocyclic Substituted Flavones: Bridging Natural Products and Medicinal Chemistry
Abstract: Heterocyclic substituted flavones represent a unique and promising class of flavonoid derivatives, gaining significant attention in recent years due to their diverse and enhanced biological activities. These compounds are characterized by the incorporation of heterocyclic moieties such as quinoline, pyridine, thiazole, imidazole, oxazole, and pyrazole into the flavone structure, which significantly alters and often enhances their bioactive properties. This structural modification has made heterocyclic flavones particularly appealing as candidates for …
Published in International Journal of Tropical Medicines · Vol. 2, Issue 1, 2025 · pp. 23–30 Read article
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Risk Factors of Neonatal Deaths Among Asphyxiated Neonates in Ayder Referral Hospital, Mekelle, Ethiopia: A Case Control Study
Abstract: In the globe about 4 million babies die during neonatal period every year and 99% of these deaths occur in low-income and middle-income countries. Out of these, almost one-fourth of them lose their lives due to birth asphyxia. The main objective of this study was to assess risk factors of neonatal death among asphyxiated neonates in Ayder Referral Hospital, Mekelle City. Institution-based unmatched case-control study was conducted from December 1st …
Published in Research and Reviews: A Journal of Medicine · Vol. 5, Issue 3, 2015 · pp. 16–26 Read article
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Analyzing the Impact of Offer Load, Mobility and Energy Related Issues on Simulation Areas of Reactive and Proactive Routing Protocols in MANETS
Abstract: MANETS is a collection of independent mobile nodes that can communicate through each other via radio waves. The mobile nodes that are in radio range can directly communicate whereas others need the aid of intimidate node to route the packets. These networks are fully disturbed and can work with any place without the help of any infrastructure. This property makes these networks highly flexible and robust. In this project, the …
Published in Journal of Mobile Computing, Communications & Mobile Networks · Vol. 1, Issue 2, 2014 · pp. 17–21 Read article
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Descartes Foundationalism: An Answer to the Skeptics’ or a Way Out?
Abstract: The phenomenon of knowledge is a fundamental issue in epistemology as a main branch of philosophy concerned with knowledge-related problems. Over time, epistemologists attempted to give us or provide clues as to what reality actually is, that is the question of the certainty of knowledge has always been topical in any epistemic enterprise. The search for knowledge becomes more cumbersome when one considers the challenge of the skeptics and sophists …
Published in OmniScience: A Multi-disciplinary Journal · Vol. 9, Issue 3, 2019 · pp. 29–34 Read article
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Catalyst: Free Synthesis of Bioactive Molecules via Green Chemical Principles
Abstract: This study explores the catalyst-free synthesis of bioactive molecules, emphasizing the application of green chemical principles. Traditional synthetic methods often rely on hazardous reagents, solvents, and metal catalysts, which can pose significant environmental and health risks. In contrast, the catalyst-free approach leverages benign reaction conditions, such as solvent-free systems, ambient temperature, and pressure, to achieve efficient and selective transformations. We present a comprehensive investigation into various bioactive molecule syntheses, including …
Published in Journal of Catalyst & Catalysis · Vol. 11, Issue 1, 2024 · pp. 17–21 Read article
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Evaluation of Abrasive Grinding Parameters in Crankshaft Manufacturing
Abstract: Grinding is a metal cutting operation performed by means of rotating abrasive tool, called “Grinding wheel”. Grinding is done o surface of almost all conceivable shapes and materials of all kinds. In grinding it is possible to achieve very accurate dimensions and smoother surface finish in a very short time and it is only a method after Harding. High temperature to the tune of the 1000 degree Celsius to 1400 …
Published in Trends in Machine design · Vol. 7, Issue 1, 2020 · pp. 28–33 Read article
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Prescribing Patterns of Analgesics in Surgical Departments in a Tertiary Care Hospital
Abstract: Analgesics are routinely employed in the management of pain in surgical departments. Drug utilization studies evaluate the present trends of drug usage, drug expenditures, appropriateness of prescriptions and adherence to evidence-based recommendations. The Objectives were to study the prescribing pattern, approval status, inclusion in World Health Organization (WHO) essential medicines list/National List of Essential Medicines (NLEM), cost and rationality of analgesics prescribed in surgical departments. Data were collected from records …
Published in Research and Reviews: A Journal of Pharmacology · Vol. 4, Issue 1, 2014 · pp. 9–16 Read article
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Photonic Design of Two Input XOR Gate at 50 Gbps Data Rate
Abstract: This manuscript explores the photonic design of two input XOR gate at 50 Gbps data rate. In the photonic circuit, each component exercised supports for the light wave propagation. The performance of optical XOR gate is alike to their digital variant. The key constituents utilized in designing of this photonic network are 2×2 optical coupler and semiconductor optical amplifier. The proposed design is executed by the igniting the nonlinear attributes …
Published in Journal of Microelectronics and Solid State Devices · Vol. 4, Issue 2, 2017 · pp. 32–39 Read article
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Maximizing Output: An Overview of Loss Analysis in Grid-Connected Solar Photovoltaic Systems
Abstract: The use of solar energy is growing in importance globally, but particularly in India. Since there aren't manysolar plants operating in India right now, there isn't any historical data. It is crucial to investigate how wellsolar power plants operate. Acquiring knowledge about solar power plant performance will lead to wiseinvestment choices. In this work, we address the different aspects that affect solar power plant performance,including age-related deterioration, inverter efficiency, design, …
Published in Journal of Nuclear Engineering & Technology · Vol. 13, Issue 2, 2023 · pp. 53–61 Read article
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Design of Steel Plate Shear Wall with Opening for Steel Building
Abstract: Steel plate shear walls have been used more and more in the steelstructures to resist earthquake and wind forces. This system offersseveral advantages as compared to the other usual lateral load resistingsystems. Steel saving, speed of erection, reduced foundation cost, and increased usable space in buildings are some apparent advantages ofthe steel plate shear walls. Steel plate shear walls also provide majorstiffness against building drift for the hi-rise buildings.This paper …
Published in Journal of Structural Engineering and Management · Vol. 1, Issue 3, 2014 · pp. 23–30 Read article
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Quality of Surface and Ground Water Around Machenahalli Indutrial Estate Between Bhadravathi and Shimoga Cities, Karnataka, India
Abstract: This study is done to analyse the physic-chemical properties of surface and ground water around Machenahalli industrial area. About seven surface water and nine ground water samples were collected and analysed for physico-chemical parameters like pH, EC (Electrical conductivity), Ca, TH, Mg, Na, K2O, SO4, CO3, HCO3 Cl and TDS (Total dissolve solid). And these results were compared with the drinking water standards of ISI (2003) and WHO (2004).For the …
Published in Journal of Water Resource Engineering and Management · Vol. 7, Issue 1, 2020 · pp. 36–40 Read article
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Computation of Electromagnetic Energy Flux Due to various Distributions of Oscillating Electric Dipoles
Abstract: AbstractThe authors have discussed about the effects of cell phone radiations, its applications along with its adverse effects. In this work we have computed the energy flux received at some specified point (say the human head) due to some simple distributions of dipoles by computing the relevant electric, magnetic fields and finally the Poynting vector. We have shown that although for a symmetric distribution of emitters the energy flux vanishes …
Published in Journal of Communication Engineering & Systems · Vol. 3, Issue 3, 2013 · pp. 17–25 Read article
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Feature Extraction to Detect Diabetic Retinopathy and Glaucoma in Fundus Image
Abstract: Visual impairment due to various eye-related diseases can be largely prevented through regular fundus colour image screening. Large scale screening of the retinal image in the early stages is crucial to disease diagnosis. It is reported that the number of ophthalmologist ratios is very low. Hence, the computer-aided screening is required where the diagnosis of disease from an image is done from the main features of the fundus image. In …
Published in Research and Reviews : A Journal of Medical Science and Technology · Vol. 7, Issue 1, 2018 · pp. 9–12 Read article
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Fatigue Detection using Artificial Intelligence to Prevent Accident
Abstract: Each year many people lose their lives due to road accidents around the world. Major accidents are due to drowsy driving. Fatigue and micro sleep of the driver are often the root cause of serious accidents. However, initial signs of tiredness can be detected before a critical situation arises. The method used to detect drowsiness are based on behavioral aspects while some are intrusive and may distract drivers, while some …
Published in Journal of Image Processing & Pattern Recognition Progress · Vol. 7, Issue 2, 2020 · pp. 1–6 Read article
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Analysis of Color and Particulate Depolarization Ratio Profiles for Aerosols using CALIPSO Level 2 Data
Abstract: Aerosols have an important impact on Earth’s climate system by absorbing, scattering and modifying cloud properties. There are many sources of aerosols; both natural and resulting from human activities with widely varying distribution both in space and time. In addition to aerosol columnar spatio-temporal variation, the vertical profile temporal studies provide valuable inputs to various climatic models and radiative transfer studies. This study focuses on the analysis of color ratio …
Published in Journal of Remote Sensing & GIS · Vol. 6, Issue 2, 2015 · pp. 1–5 Read article
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Numerical Study on Thermal Performance Assessment of a Compact Heat Exchanger Equipped with Two Broken Twisted Strips
Abstract: Twisted strips are a widely used technique for heat transfer enhancement. In the present study, it proposed that two broken twisted strips aiming at achieving good thermohydraulic performance. Effects of the two broken twisted strips (BTS) on the heat transfer, friction factor and thermal performance factor behaviours in a heat exchanger are reported along with smooth duct. The computations are based on the finite volume method with the SIMPLE algorithm …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 2, Issue 2, 2015 · pp. 22–30 Read article
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The study on the isolation, culture, differentiation and transplantation of neural stem cells from brain of crossbred white rat in the neonatal period
Abstract: We have studied for isolating neural stem cells from brain tissue of neonatal crossbred white rat, culturing and transplanting into local cerebral ischemic reperfusion model rat. We performed digestion of brain tissue, primary culture and subculture of segregated cells, measured number of neurosphere and growth index and ratio of cell survival, and identified expression of nestine from cultured cells, investigated engraftment of NSCs into ill brain tissue after transplantation of …
Published in Research and Reviews: A Journal of Medicine · Vol. 12, Issue 2, 2022 · pp. 13–19 Read article
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Wind’s Influence on Tall Buildings with Different Aspect Ratios
Abstract: Skyscrapers and other large buildings are being constructed worldwide these days. Because wind is so dynamic, it plays a major part in the design of these towering structures. The placement and height of such structures have a major impact on how wind affects them. The comparable static approach is used in this work to evaluate wind loads on structures with variable aspect ratios attained by altering the number of bays. …
Published in Journal of Offshore Structure and Technology · Vol. 11, Issue 2, 2024 · pp. 34–43 Read article
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Cyclic Nanoindentation and Nano-scratch Behaviour of CaCO3/PMMA Nanocomposite
Abstract: The calcium carbonate surface modified with γ-methacryloxypropyltrimethoxysilane was carried out to prepare poly (methyl methacrylate) based composite. The grafting of PMMA increased as the weight ratio between MMA and n-CaCO3 increased, while the grafting efficiency of PMMA decreased. Transmission electron micrograph showed that MPTMS modified n-CaCO3 covered with PMMA was formed by emulsion polymerisation. The scratch resistance of n-CaCO3/PMMA nanocomposites are highly influenced by reinforcement’s type. The effects of n-CaCO3 …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 10, Issue 2, 2020 · pp. 25–36 Read article
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Economical Analysis of Lime and Fly Ash Stabilized Flexible Pavements
Abstract: India is experiencing tremendous growth in infrastructure including road network and highways. Roads are to be designed with good reliability to fulfill the long-term performance during the design period. Most of the time flexible pavements in India need to be constructed on problematic subgrade soil. Such subgrades have low California bearing ratio which leads to more pavement thickness. Decrease in availability of suitable sub-base and base course materials for highway …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 1, 2016 · pp. 36–44 Read article