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791 articles for “Ratings”
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Effect of Elephant Grass for the Remediation of Contaminated Swampy and Clay Soils Environment
Abstract: The research on the effect of Elephant grass and effectiveness to enhance remediation of crude oil polluted soil environment was studied. The experiment carried out in order to ascertain the performance of the locally sourced braw material for remediation of the contaminated soil. The physiochemical parameters of the contaminants such as crude oil, as well as the elephant grass in powdered form, swampy and clay soils were determined in terms …
Published in International Journal of Chemical Engineering and Processing · Vol. 9, Issue 1, 2023 · pp. 25–30 Read article
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Suitability of Methyldiethanolamine (MDEA) and Piperazine (PZ) for Improving CO2 Absorption Efficiency Using Rotating Packed Bed (RPB) Technology: A Modeling and Simulation Study
Abstract: Carbon dioxide (CO2) capture and storage (CCS) is an essential technology for reducing atmospheric CO2 emissions and mitigating climate change, especially in fossil-fuel power generation. However, the high cost of CCS technologies has hindered their widespread adoption. In this study, we modeled CO2 removal using a rotating packed bed (RPB) technology using Visual Fortran and Aspen Plus software. We made use of a blended amine solution including different molar concentration …
Published in International Journal of Chemical Engineering and Processing · Vol. 9, Issue 2, 2023 · pp. 9–15 Read article
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Critical Examination on Aluminum Corrosion in Marine water Media Environment
Abstract: Investigation into the critical examination on aluminum corrosion in marine water media environment of Niger Delta in Nigeria was monitored using experimental and theoretical approach. Weight loss was experienced with increase in the period of exposure indicating the occurrence of corrosion of aluminum in both fresh and salt water body. The weight loss and corrosion rate characteristics of the aluminum in the river water media environment was further examine using …
Published in International Journal of Environmental Chemistry · Vol. 4, Issue 1, 2018 · pp. 29–43 Read article
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Effect of Temperature on Fungi Concentration in Crude Oil Remediation in an Aerated Bioreactor
Abstract: This research work was conducted to demonstrate the significance of temperature on the characteristics of fungi growth of crude oil degradation in fresh and salt water media. Comparison of fresh and salt contaminated water media was examined, the effect of temperature on crude oil degradation and the characteristics of total heterotrophic bacteria and fungi action. For Total Heterotrophic Fungi (THF) were Aspergillus niger, Aspergillus flavus, mucor sp, penicillium sp, Aspergillus …
Published in International Journal of Environmental Chemistry · Vol. 8, Issue 2, 2022 · pp. 12–21 Read article
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Spectrophtometric Study of Catalysed Oxidation of Some Cyclic Alcohols by N-bromophthalimide
Abstract: The spectrophotometric kinetic investigation of cyclohexanol and cycloheptanol catalysed by Keggin type anion [PW12O40]3- with N-bromophthalimide have been carried out in 30% acetic acid medium in absence of mercuric(II) acetate and in presence of sulphuric acid. The observed kinetic data was used for the justification of Beer-Lambert law. The reactions follow a fractional-order with respect to cyclic alcohols, PTA catalyst and first-order with respect to oxidant NBP. The added H+ …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 5, Issue 1, 2019 · pp. 44–50 Read article
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Experimental Study on Synthesis of Shear Thickening Fluid
Abstract: A novel class of nanosuspension material called shear thickening fluids (STFs) are created by dispersing micro- and nanoparticles in a dispersant. It is an intelligent material with excellent performance. When a modest shear rate is used, STFs are easily distorted. A material with noticeably improved characteristics is produced by this mixture (STF) of flowable and rigid components at a certain composition. Silica nanoparticles dispersed in a liquid polymer solution were …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 8, Issue 2, 2022 · pp. 1–6 Read article
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Effect of Compression Pressure on the Strength and Fuel Properties of Maize Cob Briquettes
Abstract: Biomass can be densified under a high compression pressure or a low compression pressure. The type of raw material, moisture level, particle size, and form typically all influence how much pressure should be used. This study utilized maize cobs and waste paper pulp to produce briquettes which are seen as alternative fuels. The goal was to determine how compression pressure affected the strength and fuel characteristics of the briquettes that …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 8, Issue 1, 2022 · pp. 16–24 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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Kinetics of oxidation of Isonicotinic Acid Hydrazide by Iron (III)-2,2ı-Bipyridyl complex-Micellar effect of Sodium DoDecyl Sulphate
Abstract: The kinetics of oxidation of Isonicotinic Acid Hydrazide (INH) using Iron (III) -2,2ı-Bipyridyl complex was studied spectrophotometrically in acidic medium. The stoichiometry of the reaction between INH and Iron (III) - 2,2ı-Bipyridyl complex was found to be 4:1. The rate of the reaction is enhanced by increasing [acid]. The reaction obeys first order kinetics with respect to iron (III) and 2, 2’Bipyridyl.The rate of the reaction is markedly accelerated in …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 4, Issue 1, 2018 · pp. 51–56 Read article
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Tetrahydro-dibenzo[a,d][7]annulene-5,11-dihydrazone and Magnesium oxide Used to Control the Corrosion of Aluminium in Chloride ions Environment
Abstract: Chloride ions interact with aluminium in marine atmosphere to form corrosion cell. Due to this corrosion reaction occurs on their surface, aluminium is oxidized into Al3+. The corrosion reaction accelerates deterioration in metal and it produces galvanic, pitting, stress, crevice, intergranular corrosion. Chloride ions decrease internal and external strength of aluminium metal. It is a very important metal so used in different appliances for e.g. road, water, air transports, housing, …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 6, Issue 2, 2020 · pp. 35–48 Read article
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Investigation of Mass Transfer Coefficient and Gas Hold Up and Bubble Size Distribution in Novel Design of Stirred Tank Reactor
Abstract: Stirred tanks are commonly used in chemical industries for reaction and separation. Large-scale reactors include many impellers to improve mixing performance. Agitator plays an important role during the gas-liquid contact in two phase flow. And it is very necessary to know for the understanding of any gas-liquid system. So, in this study my motto is to study which parameters affects in the mixing of gas inside the liquid. The parameters …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 8, Issue 2, 2022 · pp. 5–12 Read article
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Evaluation of Challenges to Women Participation in the Nigeria Construction Industry
Abstract: Construction industry is a mobile industry which always has its production site wherever contract is given. Participation of women in the profession is not being encouraged as there male counterpart. This paper is to assess the barriers to women participation in the construction industry in Nigeria. The cause for this was reviewed through the consultation of literatures and the used of questionnaires. Some factors are identified as challenges and at …
Published in International Journal of Construction Engineering and Planning · Vol. 2, Issue 2, 2016 · pp. 5–13 Read article
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Monitoring Fungi Transport Influenced by Heterogeneous Porous Sand Gravel Formation in Coastal Area of Port Harcourt
Abstract: This paper monitors the transport of fungi concentration in sand gravel formation, the formation were observed to develop heterogeneity in porous deposited strata, the migration process of fungi were observed from the simulation values through graphical representation, fluctuation of fungi concentration were experienced on the process of migration in exponential phase, the deposition of micronutrients were found to be under fluctuation in the soil thus affect the growth rate of …
Published in International Journal of Construction Engineering and Planning · Vol. 4, Issue 1, 2018 · pp. 49–57 Read article
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Analytical approach of design LIFE BAND for human
Abstract: This idea promises to provide a whole new infrastructure for the security of citizens of a particular city by bridging the gap between them and cops/police in case of danger situations, with the help of a life Band that can be worn on wrists which is going to be connected to a central city server. It’s a kind of a device connected to a central cloud server which will look …
Published in International Journal of Distributed Computing and Technology · Vol. 3, Issue 2, 2017 · pp. 41–44 Read article
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Implementation of OFDM System Using 256 Point IFFT and FFT
Abstract: OFDM is a special case of multicarrier transmission, where a single data stream is transmitted over a number of lower rate subcarriers. The main reason to use OFDM is to increase the robustness against the selective fading or narrowband interference. A large number of closely spaced orthogonal sub-carrier signals are used to carry data on several parallel data streams or channels. Each sub-carrier is modulated with a conventional modulation scheme …
Published in International Journal of Broadband Cellular Communication · Vol. 2, Issue 1, 2016 · pp. 26–29 Read article
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Power control in wireless cellular network using QOS constrained convex optimization
Abstract: For wireless cellular network with different QoS (Quality of service) constraints , a variety of power control problems with different objective functions and constraints can be formulated as non linear optimization. With the use of convex optimization they can accommodate realistic QoS constraints e.g. data rate, outage probability, throughput and SIR. In the high SIR regime these properties can be solved by converting into convex optimization problems in the form …
Published in International Journal of Broadband Cellular Communication · Vol. 3, Issue 2, 2017 · pp. 19–25 Read article
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Implementation of OFDM Using MATLAB and VHDL
Abstract: Orthogonal Frequency Division Multiplexing (OFDM) could be a digital transmission technique developed to fulfil the growing demand for higher information rates transmission of voice and video signals, which might be utilized in each wired and wireless environments. During a basic communication system, the information is modulated onto one carrier frequency. The obtainable information measure is then completely occupied by every symbol. This sort of system will result in inter-symbol-interference (ISI) …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 2, Issue 2, 2016 · pp. 6–16 Read article
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Study of Balanced Energy Absorbing Material for Structural Applications.
Abstract: The ballistic execution of "smart-sized" S2-glass fiber fortified epoxy was assessed in correlation with network perfect, framework semi-good and lattice contradictory estimated materials. The smart size is a detailing intended to give rate-subordinate conduct. The brilliant estimated material was appeared to show rate subordinate changes in interlaminar shear quality and mode I interlaminar break sturdiness testing; the ballistic execution of the material was enhanced just marginally over perfect measured materials. …
Published in International Journal of Energetic Materials · Vol. 4, Issue 2, 2018 · pp. 34–42 Read article
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Comparative Study of Machining Parameters on Electrical Discharge Machining of Inconel 718 using Copper and Copper- Tungsten Electrode.
Abstract: The present scenario in all the manufacturing industries is to make a priority list to cope up the challenges imposed by the superior materials like alloys, ceramics and composite materials which have difficulty for machining. In this study, comparison of experimental results which is found by optimization of machining parameters on material removal and tool wear rate along with two different electrodes material such as copper and copper tungsten for …
Published in International Journal of Metallurgy and Alloys · Vol. 4, Issue 1, 2018 · pp. 1–8 Read article
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Performance Calculation of a Gas Plant Compressor Unit
Abstract: This research was centered on calculating the performance of a gas plant compressor unit which was achieved using Tunu Booster Station facility. The results shows that the ability of the compressor, isentropic efficiency and coefficient of performance of the compressor gave values of 33899kw, 0.83 and 1.2. The deviations from the existing plant values were 35.6%, 31.7% and 20% respectively. Other parameters that were considered and evaluated include the failure …
Published in International Journal of Polymer Science and Engineering · Vol. 8, Issue 2, 2022 · pp. 13–24 Read article