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1970 articles for “3-acetyl-7-bromo-2H-chromen-2-one” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Thermoacoustic Properties of 1-Propanol-n-Hexane and 1-Propanol-Cyclohexane Binary Mixtures: A Comparative Study at 298.15 K
Abstract: This study reports the measurement of ultrasonic velocity (U), viscosity (η), and density (ρ) for the binary liquid mixtures 1-propanol–n-hexane and 1-propanol–cyclohexane at 298.15 K over the full composition range (mole fraction 0.1–0.9). From the experimentally measured data, several important thermodynamic and acoustic parameters, including isentropic compressibility (βₐ), acoustic impedance, intermolecular free length, free volume (Vf), and internal pressure (πᵢ), were systematically derived to assess the magnitude and nature of …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 17, Issue 1, 2026 · pp. 19–31 Read article
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Life Sciences in the 21st Century: New Ideas and Their Effects
Abstract: The life sciences have made huge strides in the 21st century, thanks to quick progress in genomics, biotechnology, and computational biology. New technologies like gene editing, personalised medicine, and synthetic biology have changed the way we think about living systems and changed the way we do things in healthcare, farming, and managing the environment. Combining big data and artificial intelligence has sped up discoveries even further, making it possible to …
Published in International Journal of Bioinformatics and Computational Biology · Vol. 4, Issue 2, 2026 Read article
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Gravitational Wave Astronomy (2015–2026): From Historic Discoveries to Quantum Detection Frontiers
Abstract: Since the landmark detection of GW150914 by the LIGO Scientific Collaboration in 2015, gravitational wave (GW) astronomy has transitioned from a theoretical frontier to a robust observational science. This breakthrough confirmed a major prediction of General Relativity and inaugurated an entirely new method for observing the universe. Over the past decade, continuous upgrades to ground-based interferometers such as LIGO, Virgo Collaboration, and KAGRA have dramatically improved detector sensitivity, enabling the …
Published in International Journal of Universe · Vol. 2, Issue 1, 2026 · pp. 1–5 Read article
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Effect of machining parameters on the tool wear in drilling of 3D PF C/C composite
Abstract: Carbon–carbon (C/C) composites are broadly used in aerospace, defence, shipbuilding, chemical, and nuclear industries owing to their high strength-to-weight and stiffness-to-weight ratios. However, they are brittle, anisotropic and non-homogeneous in nature, making them difficult to machine. Incorrect machining parameters can cause defects such as burrs, delamination, and fibre bundles pullout. This paper aims to study the hole surface and tool wear during drilling of 3D pierced fabric (PF) carbon-carbon (C/C) …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 269–281 Read article
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A Descriptive Cross-Sectional Study to Assess the Knowledge and Practice of Antenatal Mothers Regarding Maternal Diet Including Macronutrients and Micronutrients in Selected Hospitals of Indore (M.P.) in the Year 2022–2023
Abstract: A balanced and adequate diet is most important during pregnancy to meet the mother's increased needs and prevent nutritional stress. Maternal nutrition during pregnancy plays a crucial role in lowering both maternal and infant mortality rates. This study aimed to evaluate the level of knowledge and the dietary practices of antenatal mothers concerning maternal nutrition, including both macronutrients and micronutrients. A descriptive cross-sectional research design was used, involving 100 pregnant …
Published in International Journal of Women's Health Nursing And Practices · Vol. 4, Issue 1, 2026 · pp. 41–46 Read article
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Optimizing Sizes And Locations Of Wind Turbines In Ieee 33-Node Distribution System For Loss Reduction By Using Moutaint Gazelle Algorithm
Abstract: This study applies a novel meta-heuristic, called Moutaint gazelle algorithm (MGO) to determine the optimal sizes and locations of wind turbines to place in distribution networks for loss reduction. The IEEE 33-bus distribution system is a test system for conducting the whole study. The results obtained by MGO are compared to those obtained by another meta-heuristic algorithm, called Artificial Hummingbird Algorithm (AHA). The comparison between the two methods indicated that, …
Published in Journal of Thermal Engineering and Applications · Vol. 9, Issue 3, 2022 · pp. 16–23 Read article
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Efficiency Evaluation and Optimization of a 210 MW Thermal Power Plant: A Comprehensive Energy Audit
Abstract: For methodical decision-making regarding energy management, an energy audit is essential. It entails locating every energy source inside a building and aiming for a balance between energy consumption and inputs. Since India produces a large amount of its electricity through thermal power and loses a large amount of it to inefficiencies, this study investigates the energy efficiency of a 210 MW thermal power plant. The goal of the study is …
Published in Journal of Thermal Engineering and Applications · Vol. 10, Issue 3, 2023 · pp. 1–21 Read article
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32-bit Single Cycle MIPS RISC Processor
Abstract: In this report, I have written a Verilog HDL code for the MIPS 32-bit single-cycle RISC Processor and simulate the same. I have derived the result in four points first in terms of resource utilization, an RTL design view, TTL design view, and perform simulation on emulator using machine code. The topics I have cover the report are how to define instruction set for RISC architecture? Designing of various digital …
Published in Current Trends in Signal Processing · Vol. 12, Issue 1, 2022 · pp. 29–37 Read article
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Multi Response Optimization in Friction Stir Welding Al 7075/SiC/10% Metal Matrix
Abstract: The aim of this investigation is to determine the effect of Friction Stir Welding process parameters such as tool rotational speed, weld speed, tilt angle and tool geometry on Al7075/10%wt./SiC Metal matrix Composite. Composites were prepared by the mechanical stir casting process. L27 orthogonal array was chosen for the experimental design. The response characteristics as tensile strength (UTS ) and hardness (VHN) were measured and optimized with Taguchi based grey …
Published in Journal of Automobile Engineering and Applications · Vol. 5, Issue 1, 2018 · pp. 30–38 Read article
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Mapping the Vulnerabilities of Coastline Cities and Communities in Africa to Adapt to Climate Change: A Study of Lagos-Nigeria
Abstract: The Lagos coastline is active in nature and is located about less than six feet above sea level and houses about half of 15 million people in Lagos state, and is vulnerable to changes in coastline due to flooding and erosion. Climate change has aggravated this; sea-level rise will increase the risk of storm surge flooding, and coastal erosion threatening coastal cities. The annual rainfall along the coastline of Lagos …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 11, Issue 1, 2020 · pp. 44–57 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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Use of Steel Slag in Fly Ash Based Concrete for White Topping
Abstract: The fast growth in industrialization has resulted in tons of by products or waste materials, which can be used as secondary cementitious materials such as fly ash, steel slag etc. The use of these byproducts not only helps to utilize these waste materials but also improves the properties of concrete in fresh and hydrated states. Steel slag and fly ash are the two materials used in concrete. Most concrete produced …
Published in Journal of Construction Engineering, Technology & Management · Vol. 6, Issue 3, 2016 · pp. 63–69 Read article
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Comparison of the Compressive Strength of Concrete Made with Palm Kernel Shell and Gravel as Coarse Aggregates
Abstract: The investigation of alternative materials for the construction, comparison of the compressive strength of concrete made with palm kernel shell as coarse aggregate and concrete made with gravel. A mix proportion of 1:2:4 with water cement ratio of 0.6, ordinary Portland cement, PKS, gravel and sand were used for this research. 24 cubes were cast and tested for compressive strength at 7, A14, 21 and 28 days. The result showed …
Published in Journal of Construction Engineering, Technology & Management · Vol. 12, Issue 1, 2022 · pp. 12–18 Read article
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Influence of Additives and Durability Cycles on the Resilient Modulus of Asphalt Stabilized Soil
Abstract: Asphalt stabilized subgrade soils usually show a nonlinear and time dependent response under traffic loading. The elastic property of asphalt stabilized soil is defined by the resilient modulus to represent the nonlinearity behavior with respect to stress level. The aim of this work is to study the impact of durability cycles and additives on the resilient modulus and plastic parameter of the asphalt stabilized soil. Additive materials such as lime …
Published in Journal of Geotechnical Engineering · Vol. 4, Issue 2, 2017 · pp. 32–39 Read article
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Comparing Consistency Limits of Black Cotton Soil with Cement Waste Dust and Wood Shaving Ash
Abstract: In the field of civil engineering, soil has to play a prime role right from planning a structure to the end of life of that structure. But some of the soils do not offer that service which a civil engineer wants to get. Shrinking in dry state and swelling in wet state, is the well-known proved proverb for black cotton soil. In Saurashtra, southern part of the zone has such …
Published in Journal of Geotechnical Engineering · Vol. 4, Issue 1, 2017 · pp. 31–35 Read article
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Optimization of Process Parameters in EDM Machine with AISI 304 Stainless Steel using TOPSIS
Abstract: The effective solution based on TOPSIS approach to determine the optimal process parameters in die sinking electrical discharge machining. Taguchi L9 orthogonal array is used to gather information regarding the process with less number of experimental runs. Experiments have been conducted using three process parameters such as peak current, gap voltage, pulse on time, with three levels are selected to optimize the multiple objectives. AISI 304 stainless steel as a …
Published in Journal of Industrial Safety Engineering · Vol. 3, Issue 3, 2016 · pp. 33–38 Read article
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RF Energy Harvesting from Wi-Fi Router in 2.45 GHz ISM Band
Abstract: In this paper, an experimental RF energy harvesting system using rectifying antenna (rectenna) to harvest ambient energy from Wi-Fi at 2.45 GHz is presented. The proposed circuit is a combination of RMPA, followed by a third order stepped impedance low-pass filter, matching network and rectifier using Schottky diode for microwave (RF) to DC conversion. The performance of the rectenna is simulated by electromagnetic simulator computer simulation technology (CST) microwave studio. …
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 3, 2015 · pp. 21–25 Read article
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Analysis of Friction Stir Welded Aluminum Alloys 2014 and 8011
Abstract: In this work we investigated friction stir welding of Aluminum Alloy 2014, Aluminum Alloy 8011. The major defects occurring while friction stir welding are tunnel effect, poor tensile strength, uneven material flow. The main causes for these defects are improper selection of welding parameters. The major welding parameters considered in Friction stir welding are spindle rotational speed (rpm), tool travel speed (mm/min) and tool angle (degree).In this work steps are …
Published in Journal of Materials & Metallurgical Engineering · Vol. 5, Issue 1, 2015 · pp. 12–17 Read article
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Effect of Process Parameters on Material Removal Rate of Wire-Cut EDM of AISI EN 31 Tool Steel
Abstract: This paper is an attempt to find the effect of input process parameters on the material removal rate of WEDM of AISI EN 31 tool steel. The parameters taken for this study were pulse on time, pulse off time, peak current. The other process parameters like wire tension, servo voltage, wire feed rate, and spark gap voltage are kept constant. The experiment was designed using Taguchi’s L18 orthogonal array. The …
Published in Journal of Materials & Metallurgical Engineering · Vol. 7, Issue 2, 2017 · pp. 35–41 Read article
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A Two-Dimensional (2D) Analytical Model for Channel Potential and Threshold Voltage of Short Channel Triple Material Gate-Double Halo (TMG-DH) DG MOSFET
Abstract: In the present paper, an analytical model for the channel potential of short channel Triple Material Gate-Double Halo (TMG-DH) DG MOSFET has been presented using parabolic approximation method. Further, the threshold voltage of the device has been calculated using minimum mid channel potential and the result obtained has been compared with the threshold voltage of Triple Material double gate (TMDG) MOSFET in order to show the improvement in the threshold …
Published in Journal of Microelectronics and Solid State Devices · Vol. 6, Issue 2, 2019 · pp. 13–25 Read article