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2000 articles for “PE” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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EFFECTS OF THE LABORATORY ASSISTED LECTURE METHODS ON ACADEMIC ACHIEVEMENT OF GRADE 8 STUDENTS IN CHEMISTRY SUBJECT IN FINOTE SELAM WOREDA, AMHARA REGION
Abstract: In Science education, laboratories are considerably important because they provide the opportunity for students to perform various hands-on activities. The aim of this study was to examine the comparative effects of the laboratory assisted and lecture methods on primary school students’ achievements in chemistry subject. With this aim, four research questions and four hypotheses guided the study. Sixty six (66) students (12 male and 11 female in the experimental group …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 4, Issue 2, 2018 · pp. 1–9 Read article
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Chromatographic Techniques with Biological Applications
Abstract: Chromatography is kind of a number of purification performances distinct as differential relocation from a slight preliminary zone. Electrophoresis is another member of this group. In this case, the driving force is an electric field which exerts different forces on solutes of different ionic charge. The resistive force is the viscosity of the nonflowing solvent. The combination of these forces yields ion mobilities peculiar to each solute. Chromatography technique for …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 5, Issue 2, 2019 · pp. 25–29 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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Extraction of Xylanases from Media Based on three Agricolous Co-products by An Aqueous Two-phase System
Abstract: Jonesia denitrificans BN13 grows very well on a medium made out of agricultural byproducts like orange peel, esparto grass, and retam; the relative enzyme activity of these three substrates was 0.662, 0.711, and 0.835 U/ml, respectively First time xylanases were effectively extracted utilising aqueous two-phase system (ATPS) that had 3.5% PEG, 14% KH2PO4/K2HPO4, and 9% KI, The inclusion of cells resulted in much improved output from the system, which is …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 8, Issue 2, 2022 · pp. 7–15 Read article
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Investigation on Stability Analysis of Polanga oil Methyl Ester
Abstract: Biodiesel is a renewable alternative fuel and consists of mono-alkyl esters of the fatty acids. One of the major technical problems associated with the biodiesel is its storage stability and susceptibility to oxidation because of its chemical nature. This nature of the biodiesel is due to unsaturated fatty acid chains in its molecular structure. Also, the presence of the double bond in the molecule of the biodiesel produces a high …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 2, Issue 1, 2016 · pp. 16–23 Read article
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CFD-subset-FVM-based MATLAB-simulation of Heat Transfer in High Grade Cold Storage Augmenting Cryogenic Energy Storage System by Circulating Natural Gas as Working Fluid : Conceptual Review
Abstract: Abstract. Cryogenic Energy Storage (CES) improves power grid with renewable intermittent power sources. In CES, off-peak excess electricity liquefies air or natural gas. Cryogen is stored in large dewar tanks for long periods of time. Whenever electricity need is in peak, work is recovered from cryogen by a power cycle using waste heat. Many researchers focus on liquid air energy storage (LAES). But, natural gas is promising working fluid for …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 5, Issue 2, 2019 · pp. 1–5 Read article
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Algae-in-oil microbe to generate fuel efficiency
Abstract: AbstractAlgae can be converted into biodiesel, bioethanol, bio butanol, bio hydrogen, bio-jet fuel,green gasoline,bio oil and bio methane through bio-chemical and thermo chemical methods from algal biomass.Microbes grow in high quantities within a short period in dirty water, salt water and any unsuitable environments, lying wastages from power plants, and CO2 rich zones without affecting from changing climates. Nano-particle blend accessed higher combustion of bio-fuel. Waxy lipid of micro-algae made …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 6, Issue 2, 2020 · pp. 10–15 Read article
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Catalytic Steam recycle of Bio-Oil Produces Hydrogen
Abstract: The "water-gas shift reaction" is a process that combines the vapour and carbon monoxide to produce carbon dioxide and more hydrogen.Steam reforming of actual bio-oil is a more realisticmethod for producing H2 despite substantial research on the heat reform of model compounds (such as ethanol). With a focus on the creation of catalysts for the procedure, this paper covers current developments in the steam reforming of actual bio-oil. Given its …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 8, Issue 1, 2022 · pp. 25–29 Read article
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Comparative Study on Production and Characterization of Bioethanol from Agricultural Waste Materials
Abstract: Production and characterization of bioethanol from lignocellulosic substrates that include sugarcane bagasse, corn cob and cassava peels were investigated in this research study. The raw materials (sugarcane bagasse, corn cob and cassava peels) were sorted, washed, cleansed to remove dirts and dried to remove moisture contents, and crushed into ground form to increase substrate’s surface area of contacts and sieved through a mesh size of 2 mm. The bioethanol distillates …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 8, Issue 2, 2022 · pp. 1–9 Read article
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Examining the Rate of Change of Some Physicochemical Properties of a Polluted Water Environment as a Result of Crude Oil Spill
Abstract: This study was designed to look at how the physicochemical characteristics of the aquatic environment changed as a result of crude oil spillage. Samples were collected for analysis of physicochemical parameters, Total Dissolved Oxygen, Total Bacteria Counts (TBC) and Total Petroleum Hydrocarbon (TPH) content etc., for a period 84 days at 14 days intervals. Over the course of the analysis, the value of oil & grease varied between sampling points …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 9, Issue 1, 2023 · pp. 29–34 Read article
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Model Analysis of Bacteria Growth Rate in Polluted Stagnant Water Environment
Abstract: The Total Bacteria Count (TBC) analysis was carried out to investigate growth rate of microorganism in the stagnant water media. The analysis was also conducted to ascertain if the polluted water media can favour the growth bacteria, and hence, assist in the degradation Total Petroleum Hydrocarbon (TPH) content in water. The bacteria growth was slow from day 1 up to day 56, but began to increase rapidly between 70th and …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 9, Issue 1, 2023 · pp. 11–17 Read article
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A Review Of Gas Turbine Air Craft Engines
Abstract: Modern Airplanes now routinely use gas turbine engines as their propulsion technology. This research offers a thorough review of the variables influencing the performance analysis of gas turbine aircraft engines. The fundamentals of how gas turbine engines work as well as the variables that impact their efficiency, such as air pressure, humidity, and temperature. The components of gas turbine engines include the compressor, combustor, and turbine,. The techniques for assessing …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 9, Issue 2, 2023 · pp. 22–27 Read article
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Development of Biokinetic Model for Crude Oil Remediation using Neem-Water-Alcohol Root Extracts
Abstract: Model was developed to examine the degradation of crude oil in different soil environment using Neem roots extract subjected in fermentation for a period of one week. The Neem roots extract of 500g and 600g was used in carrying out the research work and both was extracted from fermented Neem roots in alcohol medium. The reaction mechanism was tested using first order rate constant with Neem treatment in both solvent …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 6, Issue 2, 2020 · pp. 1–15 Read article
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Evaluation of Thermodynamic Properties of Helium using Cubic Equation of State based Approach for Energy Industry Applications
Abstract: Equations of state based methods are important techniques for thermodynamic property prediction ofcompounds and mixtures. The Peng-Robinson cubic equation of state is one of the most well-knownformulations for gases and gas mixtures used in the process and energy industries. In this study, it isused to predict pertinent thermodynamic state variables of helium gas for its use in very hightemperature as well as extremely low temperature thermodynamic cycle application for powergeneration …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 7, Issue 1, 2021 · pp. 1–9 Read article
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Design of a Plug Flow Reactor for Production of Refrigerants from Natural Gas Chlorination
Abstract: The design of a plug flow reactor and distillation column for the production of refrigerants from natural gas chlorination, was aimed at achieving high purity volume percent of Methyl Chloride (CH3Cl) and Methylene Chloride as desired products. Aspen HYSYS software was used to simulate the reactor. The reaction was carried out at a temperature of 3000C and 1atm Pressure, Methane to Chlorine ratio was set at 1.5:1 to favour the …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 7, Issue 2, 2021 · pp. 10–22 Read article
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A Study on Mechanical Properties and Fracture Behavior of Chopped Fiber Reinforced Self-Compacting Concrete
Abstract: The development of self-compacting concrete (SCC) is innovatory landmark in the history of construction industry resulting in predominant usage of SCC worldwide nowadays. It has many advantages over normal concrete in terms of enhancement in productivity, reduction in labor and overall cost, excellent finished product with excellent mechanical response and durability. Further, incorporation of fibers enhances its properties specially related to post crack behavior of SCC. Hence, the aim of …
Published in International Journal of Construction Engineering and Planning · Vol. 3, Issue 1, 2017 · pp. 90–122 Read article
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Innovative Concrete Composites: Assessing Mechanical Strength with Fly Ash, Glass, and Granite Waste Incorporation
Abstract: Waste management poses a significant challenge for countries in both current and future contexts. The generation of solid waste from various industries, such as stone, glass, coal, and tires, constitutes a major issue in India, leading to significant environmental and health concerns for the surrounding population. This study addresses these challenges by exploring the utilization of waste granite and glass powder as materials to replace sand and cement, respectively, with …
Published in International Journal of Construction Engineering and Planning · Vol. 9, Issue 2, 2023 · pp. 37–45 Read article
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Abrasion resistance, compressive strength and elasticity modulus of recycled aggregate concrete (RAC) included lower quality recycled aggregate with and without silica fume
Abstract: The usage of recycled aggregate (RA) for concrete works is spreading for gaining wide acceptance around the world, and total amount of RA utilized in concrete industry increases day-by-day. RA is used in many concrete products, such as concrete interlocking blocks, pavements, etc. One of the physical causes of concrete deterioration is surface wear or loss of mass for concrete products which are especially exposed to vehicular traffic (i.e., industrial …
Published in International Journal of Concrete Technology · Vol. 2, Issue 1, 2016 · pp. 1–18 Read article
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Prediction of Compressive Strength of Concrete with Decision Trees
Abstract: In the past few researchers predicted the compressive strength of concrete from its ingredients employing data driven technique like artificial neural network (ANN) and Decision Tree (DT). For Indian concrete records, only one study was available which had employed ANN for prediction. Evaluation of different performance metrics indicated that there was scope of improvement in the prediction performance. In this paper experimental data from the literature was utilized for development …
Published in International Journal of Concrete Technology · Vol. 2, Issue 1, 2016 · pp. 19–29 Read article
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Re-Characterization of Strength Properties of Asphalt Concrete Mixtures Using Non Bituminous Modifier – Candle Wax
Abstract: Improving the performance of asphalt concrete mixtures synonymous with flexible pavement has been a major concern in highway engineering. However, design of flexible pavement begins with proper material characterization to ensure that designs are appropriate. It is also pertinent to say that sometimes if not most times the properties of the individual materials that make up the pavement structure falls short of desired expectations. This has led to exploring techniques …
Published in International Journal of Concrete Technology · Vol. 2, Issue 1, 2016 · pp. 30–36 Read article