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1067 articles for “Investigation”
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Assessment of the Physiochemical Parameters of Aluu Crude Oil Polluted Soil Environment in Niger Delta.
Abstract: Investigation was carried out to examine the effect of Crude oil contamination of Aluu soil and some of the physiochemical parameters. The physiochemical parameters studied were temperature, pH value, electrical conductivity and available phosphorus. The result obtained revealed the significant effect of the crude oil contamination on the physicochemical parameter investigated. The statistical analyses used were analysis of variance (ANOVA) and regression analysis. The time has effect on temperature and …
Published in International Journal of Environmental Chemistry · Vol. 5, Issue 2, 2019 · pp. 30–37 Read article
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Experimental-based Study of Justicia carnea and Moringa oleifera Extract on Crude oil Remediation of Contaminated Loamy Soil
Abstract: This study was carried out to investigate the comparison of the performance of Justicia carnea and Moringa oleifera plants extract treated with direct sunlight and the absence of sunlight on the bioremediation process of crude oil contaminated loamy soil. Total petroleum hydrocarbon degraded,total microbial count, pH, amount of nitrogen, phosphate, and potassium, soil total organic carbon, total soil organic matter were examined. Twenty one (21) batch reactors were used for …
Published in International Journal of Environmental Chemistry · Vol. 7, Issue 2, 2021 · pp. 7–23 Read article
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Preparation and Characterization of Ce-Si-SBA-15 Modified With Iron
Abstract: Recently environmental concerns have driven the development of specialized catalysts to prevent polluting substances from being released into the environment. New technologies have improvised our understanding of catalytic functions as well as selectivity in order to save the energy and chemicals. Today, catalysis is the workhorse in the chemical industry with approximately >90% of the products produced in catalytic processes. In addition, life cannot exist without catalysis, as virtually all …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 2, Issue 1, 2016 Read article
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Antiaging Effect of BSF-Cream on the Skin of Human Being
Abstract: The most innovative and promising areas of aging treatment are primarily found in dermatology, cosmetics, and biological applications. Numerous changes that accompany the aging process of the skin are caused by a confluence of exogenous (toxins, chemicals, pollutants, and UV radiation) and endogenous (gene mutation, cellular metabolism, and hormonal variables). Decline the efficiencies of the body and metabolic activities soon after reaching the stage of maturity are associated with the …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 9, Issue 2, 2023 · pp. 21–31 Read article
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Monitoring the Operation of Mobile Air Compressor Component of Filters Using Reliability Analysis Concepts
Abstract: The performance of filter component was monitored in a mobile air compressor operating in a gas plant facility located in Rivers State. The investigation covers the monitoring of the numbers of failure, downtime, and computation failure rate, mean time between failure, reliability, unreliability, availability and unavailability. In this study, it was experienced that the failures occur due to over usage as well as presence of particles in the cooling fluid …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 9, Issue 1, 2023 · pp. 18–22 Read article
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Examination of Root Cause of Fuel Tanker Truck Accident in Nigeria: The Concept of Reliability of Non-Human Factor
Abstract: The non-human factor in terms of fuel tanker truck accident in some area of Nigeria was investigated to know the root cause as well the contributing factors and to project the way forward to mitigate the menace, because at the end human life are lost. This investigation was addressed by applying the concepts of reliability, probability and relative accident consequence, in which the mean time between accident, accident rate and …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 9, Issue 1, 2023 · pp. 1–10 Read article
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Examination of conversion of Ethanol into Diethyl – Ether Product
Abstract: Investigation was conducted to examine the rate of diethyl-ether production from ethanol using the approach of vapour-phase dehydration. The following functional parameters were examined to determine the significance on the production of diethyl-ether from ethanol on the concept of vapour-phase dehydration. The functional parameters are space time, space velocity, heat generated per unit volume, reactor length, weight of catalyst and fractional conversion. The result obtained from the investigation demonstrates the …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 5, Issue 1, 2019 · pp. 10–18 Read article
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THERMODYNAMICS OF HEAVY METALS (Hg2+, Cd2+, Fe2+AND Ni2+) ADSORPTION USING BOILER FLY ASH
Abstract: The effect of temperature on the adsorption of heavy metals, Hg2+, Cd2+, Fe2+ and Ni2+ using unactivated boiler fly ash (an agricultural waste) was investigated. The results showed that Hg2+ and Cd2+ ions were mostly affected by increase in temperature because their sorption rate decreased at high temperature. At the temperature of 273 K and 383 K, the amount of Hg2+ adsorbed (mg/g) by the unactivated boiler fly ash was …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 6, Issue 2, 2020 · pp. 25–34 Read article
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Effect of Temperature on Particle Size Mixed Ratio on Petroleum Hydrocarbon Treatment in Packed Bed Unit using Adsorbent
Abstract: The significance of temperature on the potential characteristics of the adsorbent performance in treatment of polluted water medium was monitored by using both room and sun dried bioadsorbent. The research furthermore showcases the effect of particle size of the bioadsorbent in the treatment process and obtained result revealed that the particle size is a contributing factor to the efficiency and the potential in which the rate of Total Petroleum Hydrocarbon …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 9, Issue 2, 2023 · pp. 1–12 Read article
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Performance of Temperature on Compressive and Shear Strength of High Strength Fiber Reinforced Concrete
Abstract: ABSTRACT This paper presents the results of the experimental investigation of various strengths at elevated temperature of high strength fiber reinforced concrete (HSFRC). Variables considered in the research work are various strengths, temperature and fiber volume fractions. Various strengths considered for investigation are compressive strength, shear strength. Concrete mix of M60 grade and crimped steel fibers with aspect ratio 50 are used. The fiber volume fraction is varied from 1 …
Published in International Journal of Construction Engineering and Planning · Vol. 3, Issue 1, 2017 · pp. 13–23 Read article
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Compressive Strength, Water Absorption and Temperature Effects on Partial Replacing Cement with GGBS, Micro Silica and Fly Ash
Abstract: Widespread research work for decades also in development throughout the globe in concrete technology in finding substitute materials which can incompletely change Pozzolonic Portland Cement (PPC) and which can also meet the necessities of the strength and durability performance of industrial by products like micro silica, ground granulated blast furnace slag, fly ash, etc. now termed as complimentary cementations materials (CCM) are quite promising. The increased quest for sustainable and …
Published in International Journal of Construction Engineering and Planning · Vol. 4, Issue 2, 2018 · pp. 30–37 Read article
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Application of Grouted Mechanical Couplers in Accelerated Bridge Construction
Abstract: This paper presents two research projects that investigated the performance of the grouted coupler connection details developed for accelerated bridge construction applications. The goal of the first project was to conduct laboratory test and evaluation of the grouted rebar coupler connections similar to those utilized on the Keg Creek Bridge on US Highway 6, the first replacement bridge in Iowa constructed entirely with modular and accelerated bridge construction technologies. The …
Published in International Journal of Construction Engineering and Planning · Vol. 8, Issue 1, 2022 · pp. 32–48 Read article
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Study of Durability Properties of Bagasse Ash Concrete and Its Behaviour when Exposed to Elevated Temperatures
Abstract: The major driver for the economic growth and social progress of any country is its construction sector. In India, it is estimated that construction contributes 8% to 9% to GDP and this share is likely to increase in coming years. High-performance concrete made from ordinary Portland cement (OPC) and various supplementary cementitious materials (SCM) are alarmingly finding their use in construction worldwide. Bagasse ash (BA), one such SCM, the agro-industrial …
Published in International Journal of Construction Engineering and Planning · Vol. 8, Issue 2, 2022 · pp. 51–62 Read article
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Fresh and Hardened Properties of High Performance Concrete with Weld Slag as Fine Aggregate
Abstract: This research centers on the incorporation of welding slag, the residue remaining after the welding process, as fine aggregates in the production of high-performance concrete with a compressive strength of 70 MPa. The chemical and physical characteristics of welding slag aggregates (WSA), such as chemical compositions, specific gravity, SEM images, XRD, and EDS analysis, were investigated. Additional investigations were carried out by substituting welding slag with standard sand at varying …
Published in International Journal of Construction Engineering and Planning · Vol. 9, Issue 2, 2023 · pp. 29–36 Read article
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Modulus of Elasticity of Steel Fiber Reinforced Concrete with Metakaolin
Abstract: In this paper the attempt has been made to study the results of an experimental investigation using steel fiber (SF) and metakaolin (MK) on the properties of structural concrete. Crimped steel fibers of aspect ratio 85 and MK were used in this investigation. The effects of these fiber and MK on workability, density, and on various strengths of M60 grade concrete are studied. Fiber content varies from 2.5% to 10% …
Published in International Journal of Concrete Technology · Vol. 3, Issue 2, 2017 · pp. 50–59 Read article
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Regration Analysis of Compressive Strength of Recycled Aggregate Concrete with Ground Granulated Blast-Furnace Slag and Fly Ash
Abstract: In this research work presents the compressive strength of recycled aggregate concrete (RAC) with recycled coarse aggregate (RCA) that coming from single source and the results of an investigation on the influence of recycled coarse aggregate (RCA) on compressive strength of recycled concrete are accessible. Natural aggregates concrete cubes were cured in normal water for 28-days obtain virgin and RCA. The properties of natural coarse aggregate (NCA) and (RCA) and …
Published in International Journal of Concrete Technology · Vol. 8, Issue 1, 2022 · pp. 9–16 Read article
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Analytical study of CFST Columns at different Temperatures under Monotonic loading using Abaqus Software (CC & LWC infill)
Abstract: This paper presents, Behaviour of Conventional & Lightweight Concrete-Filled Steel Tube under monotonic loading at different temperatures is investigated using finite element method (Abaqus version 6.13.0.). The parameters chosen for the study are the geometry of the specimen – circular section, different L/D ratios, different grades of conventional & lightweight concrete infill and different temperatures (30°C, 60°C, 90°C, and 120°C). The study includes an analytical investigation into a total of …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 5, Issue 1, 2019 · pp. 43–52 Read article
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Strength of Soil below RC Frame Subjected to Seismic Forces
Abstract: Present study focusses on the dynamic behavior of Soil below reinforced concrete frames considering soil structure interaction by performing linear static and dynamic analysis. A reinforced concrete frame having G+10 storey was considered. The investigation on the behavior of RC frame is carried out by using dynamic analysis i.e., Response Spectrum method. The modeling of RC frame is carried out by using finite element-based computer program i.e., STAAD.Pro. The investigation …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 7, Issue 2, 2021 · pp. 35–42 Read article
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Watershed Management of Karha Basin by Using Geohydrological, Geomorphological and Geophysical Data
Abstract: The present work deals with the existing water structures available in the upper and lower Karha river basin of Purandar taluka, Pune District. Analysis of the existing structures, understanding the actual condition in upper and lower Karha river basin is carried out and the detailed investigations are countered. Geophysical investigation is carried out by Wenner method. Use of geophysical data has given the actual geology in the sub-surficial region of …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 8, Issue 1, 2022 · pp. 43–54 Read article
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Behaviour of Micropiles Groups Subjected to Vertical Loads
Abstract: Micropiles are used to reinforce soils and to support foundations. It may be installed in several directions through existing foundations so as to increase the bearing capacity of the soil and to reduce the settlement. The group effects of micropile groups subjected to vertical loads in granular soils have been investigated by many research workers. However the findings have been found to be inconsistent indicating contradictory group effects. Group behaviour …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 8, Issue 2, 2022 · pp. 1–13 Read article