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2000 articles for “effect” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Mathematical Modelling of the Effect of Functional Parameters of Temperature on Biodegradation of Petroleum Hydrocarbons
Abstract: Mathematical model was developed to examine the effect of functional parameters of temperature on biodegradation of petroleum hydrocarbons. The developed model was related to Monod’s equation and the microbial growth rate was monitored, predicted and simulated with variation on the functional parameters. The result obtained revealed increase in the microbial growth rate with increase in the functional parameter values. The maximum specific microbial growth rate was constant as well as …
Published in International Journal of Analytical and Applied Chemistry · Vol. 7, Issue 2, 2021 · pp. 21–27 Read article
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Effect of polymer architecture on the gas separation performance of PIM-1 membranes
Abstract: Molecular simulations are used to demonstrate the effects of chain architectureson the gas separation performance of PIM-1 membranes. Four different architectures(linear, H-shape, star, and dendritic) were considered to investigate the transport propertiesof four industrially relevant gases (CO2, CH4, O2, and N2). The results obtainedfor the linear PIM-1 agree well with the available experimental data. The simulationsindicate that it is indeed possible to tune the free volume morphology of PIM-1 membranesby …
Published in International Journal of Chemical Separation Technology · Vol. 6, Issue 2, 2020 · pp. 35–56 Read article
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Effect of Activation on the Physicochemical Parameters and Characteristics of Ethanol Production
Abstract: This research demonstrates the effectiveness of activators used to monitor the yield of ethanol production and the role of the physicochemical parameters. The activators used in this study is Morign oleifera and NPK fertilizer as well as the process enhancing microbial activities in the bioreactor for the production of ethanol. The experimental result reveals that the physicochemical parameters enhance the effectiveness of increase in ethanol production, because the physicochemical parameters …
Published in International Journal of Chemical Separation Technology · Vol. 8, Issue 2, 2022 · pp. 1–8 Read article
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Treatment of Petroleum Hydrocarbon: The Concept of Dissolved Oxygen and Iron Characteristics using Adsorbent and Temperature Effect
Abstract: The treatment of petroleum hydrocarbon was monitored by considering the characteristics of dissolved oxygen and iron concentration on the impact of temperature variation on the performance of the adsorbent used. The research revealed that increase in the potential performance of the adsorbent in petroleum hydrocarbon removal enhanced variation in the characteristics of the dissolved oxygen and iron content in the packed bed unit for the treatment of water medium contaminated …
Published in International Journal of Chemical Separation Technology · Vol. 9, Issue 2, 2023 · pp. 13–19 Read article
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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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Air Pollution – Its Effects on Health and Environment
Abstract: Air pollution can harm us when it accumulates in the air in high enough concentrations. Millions of Americans live in areas where urban smog, particle pollution, and toxic pollutants pose serious health concerns. People exposed to high enough levels of certain air pollutants may experience Irritation of the eyes, nose, and throat, wheezing, coughing, chest tightness, and breathing difficulties, Worsening of existing lung and heart problems, such as asthma and …
Published in International Journal of Environmental Chemistry · Vol. 1, Issue 1, 2015 · pp. 1–9 Read article
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Studies on the Effect of Coal Mining on the Water Quality Parameters of Lilagar River Passing Through Dipika Coal Field Area
Abstract: Lilagar river is a perennial water resource which is the biggest tributary of river Mahanadi in Chhattisgarh Lilagar river originates from Urta village near Pali in Korba district. The river flows through forest land, cropland and density populated rural areas. Mining of coal also causes pollution. Coal mine water is acidic in nature and dissolves the toxic elements like Cd, Pb and Al. water from river, pond and other sources …
Published in International Journal of Environmental Chemistry · Vol. 1, Issue 2, 2015 · pp. 1–3 Read article
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Hazardous Effect of Radioactive Pollution on Environment and Their Possible Preventive Measures
Abstract: Radioactive pollution is the release of radioactive substances or high-energy particles into the air, water, or earth as a result of human activity, either by accident or by design. Radioactive contamination, also called radiological contamination, is the deposition of, or presence of radioactive substances on surfaces or within solids, liquids or gases (including the human body), where their presence is unintended or undesirable (from the International Atomic Energy Agency - …
Published in International Journal of Environmental Chemistry · Vol. 3, Issue 2, 2017 · pp. 19–25 Read article
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Modeling and Simulation of Effectiveness of Stripper and Absorber in the Desulphurization and Deammonization of Sour Water
Abstract: The models for the effectiveness of stripper and absorber for the desulphurization and deammonizationof sour water were presented. The data obtained showed reliability during simulation of models. The results of simulation showed that ammonia was properly stripped off in the stripper than the other components of the sour water as the overall mass transfer coefficients were 4.0 S-1 when glycol was used as solvent and 3.0S-1 when water was used …
Published in International Journal of Environmental Chemistry · Vol. 7, Issue 1, 2021 · pp. 27–37 Read article
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Effective Utilization of Agricultural Waste for Removal of Heavy Metals from Waste Streams
Abstract: The progress of industrialization and urbanization poses a great threat to the comfort of people's lives. The production and disposal of large amounts of toxic pollutants have severely polluted our environment. The most hazardous contaminants in soils and surface waters include some organic compounds, like synthetic dyes (SD) and toxic substances (heavy metals). It is of great interest worldwide due to its toxicity to many organisms. An important topic is …
Published in International Journal of Environmental Chemistry · Vol. 8, Issue 2, 2022 · pp. 1–11 Read article
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Effects of Compatibilizer and Paper Sludge Content on the Performances of Thermoplastic Polymer Composites
Abstract: One of the environmental issues affecting third-world countries is the economic use of lignocellulose waste, which is now being researched. Paper sludge (PS) composites will allow for the effective use of a waste material that is currently burned or buried, as well as the ability to lower the cost of the composite that is created. In this study, the mechanical and thermalcharacteristics of environmentally friendly composites constructed from PS-reinforced recycled …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 8, Issue 2, 2022 · pp. 10–21 Read article
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Effect of Pressure on Insulation Failure and Pipe Leakage in Natural Gas Transmission Pipeline Using Simulation Software
Abstract: Effect on insulation failure and pipeline leakage in natural gas transmission line using simulation software known as EXTENDSIM9 SUIT was applied to monitor, predict and simulate the variation in pressure in a pipeline system. The computational fluid dynamics parameters for the flow of compressible gas in a pipeline includes density and pressure which changes along the transmission line due to frictional resistance, and may lead to fogging/ hydrate formation or …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 5, Issue 1, 2019 · pp. 24–37 Read article
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Simulation of Heat Generated on Crude Oil Degradation upon the Effect of Temperature in Bacteria Growth Kinetics in a Bioreactor
Abstract: Model was established to simulate the heat generated by bacteria with the interaction of substrate (crude oil) degradation in a bioreactor upon the influence of temperature. The model was predicted by simulating the characteristics of bacteria interaction with substrate at temperature of 15oC, 30oC, 45oC, 60oC, 75oC, 90oC, 105oC and 120oC and heat generated is within the range of -1.0 to 7.1kcal/hr for bacteria in fresh water medium whereas for …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 8, Issue 2, 2022 · pp. 39–54 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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Investigating Effects of Pressure on Discharge Velocities of Different Sizes Fluid Jet
Abstract: This paper aims to investigate the effect of pressure on the discharge velocities of different sizes water jet. To fulfil the above aim, the study selected two different diameters such as 6 mm and 4.5 mm water jet which discharges water from variable water head, H. The measured and calculated discharge velocities for each water jet were determined based on travel time theory and flow equation respectively. In addition, an …
Published in International Journal of Water Resources Engineering · Vol. 8, Issue 2, 2022 · pp. 1–5 Read article
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Effects of Introducing Slots in Rectenna
Abstract: Wireless power is turning out to be a promising technology in near future. This would not only be an alternative to batteries and wired supply, but also protect our environment from the harmful effects of batteries. In this paper analysis of introducing slots in the rectenna is studied. An experimental RF energy harvesting system to transmit wireless powers using microwaves is designed and then effects of slot loading on the …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 1, Issue 1, 2015 · pp. 32–38 Read article
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Effect Of Capping Agents And Annealing On The Optical Properties Of (Cd0.8-Zn0.2)S And (Cd0.8-Zn0.2)S:Eu Films Prepared By CBD Technique
Abstract: Thin films of (Cd0.8-Zn0.2)S and (Cd0.8-Zn0.2)S:Eu are prepared by Chemical Bath Deposition (CBD) technique on glass substrates at 60ºC temperature by adding Mercaptoethanol and Methanol as capping agents(CA). The films were annealed at 400°C for two minutes and their optical properties were studied. The effect of the presence of capping agents and annealing was investigated. The optical constants such as refractive index, extinction coefficient, optical and electrical conductivity, real and …
Published in International Journal of Applied Nanotechnology · Vol. 2, Issue 1, 2016 · pp. 1–7 Read article
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Effect of Calcium doping on Structural and Morphological properties of YBCO Superconductor
Abstract: In this paper, we have reported the effect of Ca doping in YBCO superconductors with an aim of understanding the effect of novel local nano distortions on the superconducting properties of YBCO. Solid state reaction method is used to prepare the samples. X-Ray diffraction pattern shows that the samples are polycrystalline and having orthorhombic structure while Resistivity measurement shows that Tc decreases with increase in Ca-doping.Morphological studies reveals clear evolution …
Published in International Journal of Applied Nanotechnology · Vol. 6, Issue 1, 2020 · pp. 6–10 Read article
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Effects of Industrial Waste Filler Content and Compatibilizer on the Performance of Thermoplastic Polymer Composites
Abstract: In this study, we examine the physico-mechanical characteristics of waste filler-thermoplastic polymer composites in relation to the industrial waste filler mixing ratio and compatibilizer concentrations. Three degrees of coupling agent (Epolene E-43) content and four levels of waste filler to thermoplastic polymer mixing ratios were used in the experiment to examine the physical and mechanical characteristics of the composite. As was to be predicted, composite density grew as waste filler …
Published in International Journal of Applied Nanotechnology · Vol. 9, Issue 2, 2023 · pp. 12–21 Read article
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Effects of Gate Oxide Thickness and Its Dielectric Strength in WS2 Based TMDFET
Abstract: This paper presents the numerical simulation of transition metal dichalcogenide based field effect transistor (TMDFET). Here we have studied the transfer characteristic, ION/IOFF ratio, subthreshold slope of TMDFET by varying oxide thickness and its dielectric strength dependence performance. The channel material used for field effect transistor is tungsten disulfide (WS2). To calculate the transfer (input) characteristics, we use Non Equilibrium Greens Function (NEGF). Results are achieved by solving the Poisson’s …
Published in International Journal of Energetic Materials · Vol. 5, Issue 1, 2019 · pp. 14–20 Read article