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1679 articles for “over- sampling”
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Evaluation of Anti-Oxidant Properties of Lemon Grass Essential Oil in Inhibiting Corrosion of Mild Steel
Abstract: Lemon grass (Cymbopogon citratus) essential oil was extracted by hydrodistillation method, using all glass Clevenger apparatus. The essential oil obtained was used as inhibitor (anti-oxidant) to inhibit the corrosion of mild steel in acid and alkaline media. Samples of mild steel were exposed to acid and alkaline media in the absence of inhibitor and their corrosion rates were evaluated. Subsequently, other samples of the same mild steel were exposed to …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 3, Issue 1, 2016 · pp. 36–41 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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Optimization Study by Response Surface Methodology and Artificial Neural Network on the Culture Parameters of Citric Acid Bioproduction from Sweet Potato Peels
Abstract: In the cause of this research work, two steps enzymatic hydrolysis of sweet potato peel was carried out respectively. The effect of α-amylase dose, reaction time, and reaction temperature and biomass weight on glucose concentration was investigated carefully. The response surface methodology (REM) predicted the highest reducing sugar concentration at liquefaction to be 74 g/L, at the following optimized conditions; temperature of 45°C, α-amylase dose 0.7 %v/v, biomass weight 22.345 …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 9, Issue 1, 2022 · pp. 30–38 Read article
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Circular Retiming technique to design Optimized Least Mean square architecture for adaptive filter
Abstract: Circular retiming improves performance and power consumption of the Least Mean Square (LMS) adaptive filter. It is implemented for weight updated block and error computational block to minimize the adaptive filter error without violating the functional equivalence output. Here, filter multiplication block is updated in a circular convolution format and is retimed to reduce the dynamic power consumption. Additional retime flip-flops shows better performance result compared with the existing state-of-the-art …
Published in Journal of VLSI Design Tools and Technology · Vol. 8, Issue 3, 2018 · pp. 1–9 Read article
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Implementation and Simulation of High-Speed Dynamic Latch Comparator for ADC
Abstract: As per emerging issues in analog-mixed signal (AMS) design towards high-speed and low power, limits the performance of high-speed applications. Circuit complexity, speed, offset voltage and resolutions are essential parameter of comparator that affects the analog-to-digital converter (ADC) performance. Based on specifications, to achieve lower offset voltage and higher load drivability of latched comparator is presented. Moreover, the circuit is able to reduce power dissipation as the topology is based …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 2, 2016 · pp. 99–103 Read article
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Study of Signal Processing Using Applications of Fourier Series
Abstract: This essay discusses the use of the Fourier series in the field of signal processing. It will include the results of various tests performed on the variable and the results it produces in the form of graphical diagrams. In order to acquire the right information exchange, we have observed a variety of distinct frequency pattern graphs. Also, the stated graph of filtered signal provides unique pattern that may find application …
Published in Journal of VLSI Design Tools and Technology · Vol. 12, Issue 3, 2022 · pp. 35–43 Read article
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A Review on Assessment of Groundwater Quality for Irrigation and Domestic Purposes
Abstract: AbstractWater is the basic need without which life does not exist in the earth. It is well known that major portion of the earth is occupied by water, out of it only few amounts are fresh water and meant for drinking and other purposes like agriculture, industries, etc. Water occurs in the earth in different forms like surface water, groundwater, glaciers and seawater. Among which the groundwater serves the majority …
Published in Journal of Water Resource Engineering and Management · Vol. 5, Issue 1, 2018 · pp. 33–38 Read article
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River Water and Soil Analysis in Noyyal River, Tirupur
Abstract: Tirupur is famous for its textile industries. Because of this, the rate of water pollution is also very high. The generation of waste water from the industries is the main reason for the waste water problems to the environment. Some industries are not adopting any proper treatment methods to avoid this pollution, because of the high treatment cost. Without giving proper treatment the waste water is dumping in to the …
Published in Journal of Water Resource Engineering and Management · Vol. 1, Issue 1, 2014 · pp. 20–23 Read article
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Quality Assessment of Underground Water in Summer Season of Rewa City, Madhya Pradesh, India
Abstract: This paper presents the quality assessment of underground water and seasonal variation in physical and chemical properties of underground water in a summer season of Rewa district, Madhya Pradesh state, India. The variable data of samples are within prescribed limits as suggested by the world health organization (WHO), Indian standard (ISI) and BIS desirable limit for drinking water for drinking purpose. Yearly variation in physical and chemical parameters like temperature, …
Published in Journal of Water Resource Engineering and Management · Vol. 3, Issue 1, 2016 · pp. 34–41 Read article
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Defluoridation of Water using Corn Cobs Powder: An Effective Risk Reducing Agent
Abstract: The presence of a unique chemical called fluoride in water, has a major impact on human health. In many places, ground waters are the primary source of water and is found to be with high concentrations of fluorides. Most of the adsorbents used for the removal of fluoride from drinking water are activated carbon-based materials and is found to be most expensive. There is a need for an alternative, effective, …
Published in Journal of Water Resource Engineering and Management · Vol. 8, Issue 2, 2021 · pp. 25–34 Read article
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Engineering Hydrology for Flood Control, Adequate Water Resources and Sustainable Environment in Nigeria
Abstract: Life is dependent upon water, and the knowledge of hydrology must be deployed to tackle issues related to floods, water scarcity, and environmental and climate change. This article examines engineering interventions through hydrology for flood control, adequate water resources, and a sustainable environment in Nigeria. The methodology adopted includes a literature review, survey-based studies, and systematic sampling with basic random sampling. Findings revealed that excess precipitation has serious negative effects …
Published in Journal of Water Resource Engineering and Management · Vol. 10, Issue 2, 2023 · pp. 1–10 Read article
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PRICE CONCESSION ON AKURE RESIDENTIAL PROPERTY MARKET
Abstract: This research work examined the price concession on vacant land and developed residential property market in Akure, Nigeria. The data for the study was collected through structured questionnaire administered on the 20 Estate Surveying and Valuation practising firms in Akure as contained in the, 2018 register of the Heads of firms of the Nigerian Institution of Estate Surveyors and Valuers, Ondo State Branch. The records of the past sales transactions …
Published in Recent Trends in Civil Engineering & Technology · Vol. 8, Issue 3, 2018 · pp. 46–54 Read article
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Comparative study on defluoridation by adsorption using rice husk ash, tamarind seed powder and activated
Abstract: In the present study, the ability and suitability of low cost adsorbents such as rice husk ash (RHA), tamarind seed powder (TSP) to adsorb fluoride ions was investigated in jar test apparatus and results were compared with that of commercially available activated charcoal powder (ACP). The major parameters such as pH, concentration of F- ions, stirring rate, contact time and different adsorbent dosages were studied and optimized. The maximum removal …
Published in Recent Trends in Civil Engineering & Technology · Vol. 10, Issue 1, 2020 · pp. 25–32 Read article
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Experimental and Behavioral Study on Fly Ash Along with Lime to Make Bricks for Low Cost Housing Techniques
Abstract: Fly ash is the waste material which is usually dump or used in concrete today as admixture and also replace by cement in concrete proportion and give equivalent strength to structure. A lot of research has been carried out for effective use of fly ash. As we know today fly ash bricks overcame to normal clay burnt bricks in all parameters like compressive strength, water absorption, durability, mortar profit, finishing …
Published in Recent Trends in Civil Engineering & Technology · Vol. 5, Issue 2, 2015 · pp. 30–41 Read article
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Self-Compensation of Commutation Phase Error for Brushless DC Motor
Abstract: BLDC motors are synchronous motors powered by DC electricity via an inverter which produces an AC electric current to drive each phase of the motor via a closed loop controller. Electronic commutation is the on-and-off of the semiconductor switches at appropriate time to turn stator windings. Commutation phase ripple is generated due to the different exchange rate between outgoing phase current and incoming phase current of inverter during commutation period. …
Published in Trends in Electrical Engineering · Vol. 8, Issue 3, 2018 · pp. 72–81 Read article
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Fabrication and Evaluation of Mechanical Properties of Banana Fiber Reinforced Epoxy Composites
Abstract: Natural fiber reinforced composites are gaining attention in recent days due to eco-friendly nature, sustainability, low cost and easy availability. The natural fibers are enriched with favorable mechanical properties which diversify artificial fibers are bio-degradable, nonhazardous, light weight. In this submission, specimens of the banana fiber reinforced epoxy composites are developed to evaluate the mechanical properties. The composite sample specimens are designated with different fiber orientations using the hand lay-up …
Published in Trends in Mechanical Engineering & Technology · Vol. 10, Issue 1, 2020 · pp. 37–47 Read article
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EFFECT OF EXPOSURE OF CEMENT ON THE COMPRESSIVE STENGTH OF CONCRETE
Abstract: Concrete has become the bedrock of infrastructural civilization in Nigeria as over 75% of the infrastructures in Nigeria have to do with concrete. Most times, Engineers design for a particular grade of concrete and Post-construction checks shows that concrete is defective of this strength and exposure of cement is observed to be one of the causative factors. In this study, the effect of exposure of cement on the compressive strength …
Published in Trends in Transport Engineering and Applications · Vol. 6, Issue 1, 2019 · pp. 34–44 Read article
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UTILIZATION OF INDUSTRIAL AND MUNICIPAL WASTE MATERIALS IN SOIL STABILIZATION OF RURAL ROADS: A REVIEW
Abstract: In India, the growth of rural sector directly depends on the road connectivity, which provides the platform and sustainability for economic activities in rural areas. However, difficult topography and unstable geology make the rural road constructions hard. Therefore, the locally available waste materials can be utilized to improve the soil characteristics and can promote the low cost road construction. The present Study is aimed to review the improvement of engineering …
Published in Trends in Transport Engineering and Applications · Vol. 6, Issue 2, 2019 · pp. 40–44 Read article
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Feasibility of Using Nondestructive Testing (NDT) in Roller Compacted Concrete Quality Assessment
Abstract: Roller compacted concrete is a no slump, heavy duty concrete usually used in pavement constructed of roadway, parking lots, in areas of frozen environment or aired region where there is shortage of water for curing, and when other paving alternatives do not satisfy the pavement design requirements regarding heavy loading, and nonstandard wheel configuration. The traditional testing e slab samples have been prepared in the laboratory using two types of …
Published in Trends in Transport Engineering and Applications · Vol. 2, Issue 3, 2015 · pp. 30–39 Read article
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Influence of Microcrack Healing on Interface Bond Shear Strength of Asphalt Concrete
Abstract: The flexible pavement layers are susceptible to cracks throughout its service life under the repeated loading and environmental impact. However, microcracks can heal itself through rest period and variation in temperature. In this investigation, the influence of microcrack healing on the interface shear strength of asphalt concrete was assessed. Two types of tack coat (rapid curing cutback RC-70 and cationic medium setting emulsion CMS) and three application rates have been …
Published in Trends in Transport Engineering and Applications · Vol. 7, Issue 2, 2020 · pp. 18–28 Read article