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1974 articles for “6-(4-chlorophenyl)-1” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Eco-friendly Corrosion Inhibitors for N80 Steel in Hydrochloric Acid
Abstract: An important method of protecting metallic materials against deterioration due to acid corrosion is by the use of corrosion inhibitors. In the present investigation, corrosion inhibition study of two compounds,1-(2-hydroxyethyl)-2-ethylimidazoline(Inh I) and 1-(2-hydroxyethyl)-2-decylimidazoline (Inh II) have been performed for oil-well tubular steel (N80) in 15% HCl using weight loss, electrochemical polarization, AC impedance and SEM. The inhibition efficiencies of the inhibitors follow the sequence, Inh II > Inh I. The …
Published in Journal of Materials & Metallurgical Engineering · Vol. 2, Issue 1-3, 2012 · pp. 71–83 Read article
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Utilization of Sugarcane Bagasse as Biopolymer Adsorbent for Arsenic (III) Removal from Aqueous Solutions
Abstract: The present study focuses on the removal of the heavy metal As(III) from aqueous solutions using the low cost adsorbent, sugarcane bagasse. The effect of contact time (10, 20, 30, 40, 50, 60, 70, 80, 90 min), adsorbent dosage (0, 0.25, 0.5, 0.75, 1 gm) and metal concentrations (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 ppm) on the adsorption were studied and the optimum conditions were …
Published in Journal of Polymer & Composites · Vol. 9, Issue 2, 2021 · pp. 30–44 Read article
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IMPACT OF HYDRATED LIME AND SBS ON HMA MOISTURE SUSCEPTIBILITY
Abstract: Abstract In recent years, many of the newly built asphalt and concrete roads in Baghdad and other Iraqi cities have broken down too soon. This has hurt the country's economy and public safety. One of the main reasons why these newly built roads break down is because of water damage. Leaking water weakens the bond between the aggregate and the asphalt, which makes it more likely that sidewalks will fall …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 81–93 Read article
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Performance Step-up of Nuclear Greater Power Grid by HVAC-3HVDC Line
Abstract: This research work is done for performance step-up of nuclear greater power by HVAC-3HVDC line when load disturbance occurs in power grid-1. Three types of tie lines, HVAC-3HVDC, HVAC-2HVDC and HVAC-1HVDC parallel tie lines are applied for performance step-up of 12-area two interconnected nuclear greater power grids. For synchronizing purpose of nuclear greater power grid, this research work proves that HVAC-3HVDC parallel tie line is better as compared to the …
Published in Journal of Power Electronics and Power Systems · Vol. 9, Issue 1, 2019 · pp. 1–14 Read article
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Small Scale Horizontal Axis Wind Turbine
Abstract: In this work, the performance analysis of a designed small scale horizontal axis wind turbine (HAWT) has been presented and optimized by varying span length and chord length. The HAWT blades are shaped to generate maximum power from the wind at minimum cost. The blades are designed by using QBlade software and simulated in blade element method (BEM).The values of tip speed ratio and power coefficient have been obtained as …
Published in Journal of Power Electronics and Power Systems · Vol. 4, Issue 3, 2014 · pp. 26–32 Read article
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Post COVID-19 Impact on Agriculture and Food Security
Abstract: The Coronavirus COVID-19 pandemic is a global health crisis that is already having devastating impacts on the world’s economy. The challenges and vulnerabilities related to food security in these countries are further exacerbated by the current coronavirus (COVID-19) global pandemic. As a quick response strategy to reduce the spread of the coronavirus, countries have imposed various types of movement restrictions, both locally and globally, which have therefore been affected. Agricultural …
Published in Journal of Production Research & Management · Vol. 12, Issue 1, 2022 · pp. 8–13 Read article
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Different Compressor Adders
Abstract: AbstractMultipliers are one of the main blocks which decide the circuit performance as well as computation speed. In multiplication, addition of partial products contributes most to the circuit delay, power, and area. In this project, compressor adders are used to reduce this delay. Hence, compressors are a major part of the multiplier circuit that decides the overall speed of the system. For high-speed processing and higher systems, a huge number …
Published in Journal of Semiconductor Devices and Circuits · Vol. 5, Issue 2, 2018 · pp. 19–26 Read article
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Building Behaviour on Sloping Ground With & Without Diaphragm: Earthquake Zone-IV
Abstract: The period 1996 to 2015, 7,056 disasters recorded worldwide. 1.35 million People killed by natural hazards over the past 20 years, more than half died in earthquakes. The poorest nations paid the highest price in terms of the numbers killed per disaster and per 1,300,000 populations. Earthquake load is major effect on buildings especially on sloping grounds. Earthquake zone-IV is twice times more dangerous compare with zone-III. In the present …
Published in Journal of Structural Engineering and Management · Vol. 7, Issue 2, 2020 · pp. 47–55 Read article
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Experimental Investigation on Ferrocement Slab Using Steel Fibres and Different Sands
Abstract: Ferrocement is defined as wire mesh reinforcement impregnated with mortar to produce elements of small thickness. An experimental study has been carried out to study the effect of different compositions of cement mortar using 10% fly ash and different percentage of 6–8% silica fumes with two types of sands such as Badarpur sand and river sand and show the effect of load versus deflection curve and flexural strength of ferrocement …
Published in Journal of Structural Engineering and Management · Vol. 4, Issue 2, 2017 · pp. 27–30 Read article
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Optical Filters From Silicon Dioxide Doped Dyes
Abstract: In this work silicon dioxide powder of high purity 99.5% imported from china was used to fabricate optical filters by doping the SiO2 with green and red phenol dyes with different concentrations of 0.25,0.5,0.75 and 1 in terms of mg, four samples of red SiO2 doped phenol filters and four samples of green SiO2 doped phenol filters were produced by pressing the mixture of silicon dioxide powder doped with the …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 7, Issue 1, 2020 · pp. 39–48 Read article
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Pipeline Integrity Optimal Maintenance Techniques and Its Reliability
Abstract: This study is aimed at determining the optimal maintenance model for utilizing both preventive and corrective costs control system. It was assumed that operating conditions and pipeline diameters were uniform following the cumulated results and computational analysis. The research included an estimation which shows that the average cost for the installation and of course the maintenance of a healthy and operational pipeline is within $1,989,992 per km. Considering the failure …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 9, Issue 1, 2022 · pp. 23–29 Read article
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Comparative Analysis of High Speed Comparator for A to D Converters
Abstract: In this paper dynamic comparator along with the output buffer stage has been introduced. The simulation is carried out in 130 and 90 nm technologies. The supply voltage for 130 nm is 1.3 V and for 90 nm is 0.9 V. Different analyses for various characteristics of the comparator such as ICMR, delay, offset voltage and power dissipation is carried out in 130 and 90 nm CMOS technology. The comparator …
Published in Journal of VLSI Design Tools and Technology · Vol. 5, Issue 2, 2015 · pp. 4–10 Read article
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ENGINEERING ASSESSMENT OF WATER TREATMENT METHODS FOR PUBLIC HEALTH IN OGUN STATE, SOUTH-WESTERN NIGERIA
Abstract: Water and sanitation are important determinant of public health and there is a need to evaluate it. Method used was a descriptive qualitative assessment of sanitation and water handling practices in some rural areas of Ogun State Nigeria was conducted. Results: The results obtained showed that about 30% do not have toilet facility while 55.6% had pit latrine. Only 20.8% had a closed dustbin, open dustbin (37.2%) while 42.0% had …
Published in Journal of Water Resource Engineering and Management · Vol. 5, Issue 3, 2018 · pp. 8–16 Read article
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HEC-HMS Based Estimation of Rainfall Runoff Relationship in Central Highlands of Ethiopia, a Case Study in Beressa Watershed
Abstract: Rainfall and runoff are the most frequently used events in hydrology. Calculating of a flow at the outlet of river is vigorous for a number of hydrologic studies like water resource management and flood forecasting. This study supported out to estimate rainfall-runoff relation in Beressa watershed. HEC-HMS model is used to pretend rainfall-runoff process and to apply the rainfall-runoff analysis by using SCS_CN method in Beressa Watershed. A physical based …
Published in Journal of Water Resource Engineering and Management · Vol. 8, Issue 3, 2021 · pp. 40–63 Read article
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Durability Study of Lightweight Aggregate Concrete using Pumice Aggregate as Replacement of Coarse Aggregate
Abstract: Lightweight concrete has less dead load as compared to the normal concrete. Most of the buildings are made in India using light weight aggregate/materials. In this experimental work, we need to focus on the light weight concrete using pumice aggregate and assessment of the result of compressive strength and reduction in dead load of the concrete. Four concrete mixes of M1, M2, M3 and M4 were prepared with the different …
Published in Recent Trends in Civil Engineering & Technology · Vol. 7, Issue 2, 2017 · pp. 1–4 Read article
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Lumped Construction Sequence for Column Shortening Analysis in High Rise Building with Outrigger System
Abstract: The exact value of column shortening is not a straightforward task. Various parameters are affected on column shortening results like rate of construction sequence and reinforcement ratio. The building should stand with high stiffness and must be able to resist lateral deformation without having discomfort to the user. The excessive drift is controlled by using outrigger system. In high rise buildings, the construction sequence analysis and conventional sequence analysis are …
Published in Recent Trends in Civil Engineering & Technology · Vol. 11, Issue 3, 2021 · pp. 23–30 Read article
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A Study on Strength and Durability of Fly Ash–Metakaolin Blended Geopolymer Concrete
Abstract: Production of cement causes 8% of the total carbon dioxide emissions in the world. Finding a right alternative to cement is the need of the hour, to eliminate environmental pollution caused by cement production. A substitute for conventional concrete can be industrial waste products like GGBS, Flyash, Metakaolin, and so on, these mineral admixtures can be used to fully replace cement with some activators this mix of mineral admixtures and …
Published in Recent Trends in Civil Engineering & Technology · Vol. 12, Issue 3, 2022 · pp. 51–59 Read article
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Prediction of Mix Ratios for Grade 30 Superplasticized Concrete Using Osadebe’s Regression Model
Abstract: This study developed a model for estimating the compressive strength of grade 30 super-plasticized concrete. The regression model was built using a total of 15 experimental mix ratios. The results of compressive strength at 28 days from the concrete cubes were used for model development. Two cubes (150 mm × 150 mm × 150 mm) were produced per mix ratio, totaling 30 cubes for the 15 trial mix ratios. Osadebe’s …
Published in Recent Trends in Civil Engineering & Technology · Vol. 13, Issue 2, 2023 · pp. 1–10 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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Investigate the effect of TIG welding process parameters on weld distortion of AA6061 - A Technical review
Abstract: TIG welding, also known as Gas Tungsten Arc Welding, is a process that uses heat orpressure to join metal pieces. The electrodes and weld pools are covered with inert gas. Toachieve high-quality weld connections, superior alloys such as stainless steel, aluminium, andmagnesium alloys must be employed. The aluminium metal was invented and produced in 1825.This project uses the 6061 aluminium alloy, which is one of nine different varieties of aluminium …
Published in Trends in Mechanical Engineering & Technology · Vol. 12, Issue 1, 2022 · pp. 31–38 Read article