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218 articles for “labor.”
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Comparison of Theoretical and Experimental Approach to Predict Crude Oil Spreading Rate in Niger Delta Area, Nigeria
Abstract: Theoretical and Experimental approach was employed to examine the rate of crude oil characteristics upon the influence of transport and spreading, using Niger Delta raw crude oil. The major raw crude oil used for this investigation are Escravos crude oil, Brass blend and Bonny light and the rate of transport and spreading was monitored based on the laboratory set – up experiment. Mathematical model was developed to monitor, predict and …
Published in International Journal of Chemical Engineering and Processing · Vol. 4, Issue 2, 2018 · pp. 27–37 Read article
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Vapor Liquid Equilibrium Study of Propylene Carbonate-water and its Comparison with Various Thermodynamics Models Using Dwsim Simulation Software and Group Contribution Method
Abstract: In present study, green solvents that are environment friendly in nature were considered because it will reduce the environment pollution by replacing the petroleum derived solvents. Solvent used in chemical industry were mostly derived from the petroleum crude oils. Solvent emission increases the environment pollution. With the use of green solvents, closed carbon cycle will reduce the environment pollution drastically. Bio-derived solvents are the recent replacement of petroleum solvents that …
Published in International Journal of Chemical Engineering and Processing · Vol. 9, Issue 2, 2023 · pp. 1–8 Read article
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Nanocoating and Electrospraying Techniques Used for Corrosion Mitigation of Aluminum in Nitrogen dioxide Environment
Abstract: Nitrogen gas absorbs moist air to produce nitric acid. It develops acidic medium for aluminum. It forms a corrosion cell on the surface of aluminum. The formation of corrosion cell is written as: Al|Al+3||H+|H2 thus Corrosion reactions accelerate on aluminum surface and Al is oxidized into Al+3 and the H+ ions is reduced into H2. This acid produces various forms of corrosion in aluminum like galvanic, pitting, stress, crevice, blistering, …
Published in International Journal of Environmental Chemistry · Vol. 6, Issue 2, 2020 · pp. 20–31 Read article
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Fundamentals of Mass Transfer Operations
Abstract: Mass transfer operation is one of the most important subjects in chemical engineering. It contains concepts of diffusion, mass transfer coefficient and interface mass transfer. Also important unit operations such as distillation, absorption, extraction, crystallization, drying, humidification and dehumidification are covered in mass transfer operation. We come across these unit operation in our domestic applications and day to day life. These unit operations can be intensified to improve the cost …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 6, Issue 1, 2020 · pp. 15–18 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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Determination Of Soil Bearing Capacity for a Proposed 3-Storey Agricultural Engineering Complex
Abstract: At the course of the research work, bore- holes were dug at the proposed site and soil samples were collected at depth 1m, 2m, and 3m for geotechnical analysis to determine the suitability of the site for 3-storey Agricultural Engineering complex construction. The laboratory analysis performed yielded the results listed below; It was discovered that the soil's natural moisture content ranged from 11.69% to 13.01%. All samples had an exact …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 9, Issue 2, 2023 · pp. 35–41 Read article
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Corrosion Protection of Copper Metal by Nanocoating in Nitrogen dioxide Environment
Abstract: Nitrogen dioxide is an acidic gas. It absorbs moisture to produce nitric acid. It creates corrosive medium for copper metal. It forms corrosion cell on the surface of copper and accelerate corrosion reactions. The corrosion cell formation is written as: Cu|Cu2+||H+|H2 thus corrosion reactions start and copper is oxidized into Cu2+surface and it is oxidized into Cu2+ whereas H+ ion is reduced into H2. Nitric acid environment copper exhibits galvanic, …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 8, Issue 1, 2022 · pp. 1–11 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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Study of the Effect of Water Retarding Concrete Admixtures on the Properties of Concrete
Abstract: Water retarding concrete admixtures and super plasticizer are extensively utilized to recover the structural and mechanical properties of fresh and hardened concrete. These admixtures are more regularly used in pre-stressed concrete, slim components with overfilled and densely filled reinforcement, beams and slabs pre-cast basics and long slender column. In current decades, marvelous success has been attained in the progression of chemical admixtures for Portland cement. Most efforts have concentrated on …
Published in International Journal of Construction Engineering and Planning · Vol. 4, Issue 1, 2018 · pp. 10–14 Read article
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Identification of KPIs in Construction Industry: A Review
Abstract: The success of any construction project depends on project performance. Construction industry contains large number of parties, i.e. clients, stakeholders, shareholders, consultants, contractors, regulators and others. The factors that affect the performance of construction projects result in disputes, claims, failures and delays in construction. Through performance measurement, organizations can improve their productivity and also compare it with their competitors, as well as identifying their weakness. The main aim of this …
Published in International Journal of Construction Engineering and Planning · Vol. 5, Issue 1, 2019 · pp. 28–38 Read article
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Study on Rural Infrastructure availability and wellbeing in Karisalkulam Village
Abstract: Rural development is the process of developing rural areas through improving the quality of living for rural people. Development not only means technology and education but also gaining and accepting ability of culture to adopt the new era to compete with the outer world. The planning and strategies for rural development are mainly concerned with Gram Panchyats, schools, higher educational institutes, industries and labor needs. The aim of this study …
Published in International Journal of Construction Engineering and Planning · Vol. 6, Issue 1, 2020 · pp. 25–34 Read article
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Outcome-based Education for Engineering Education: Challenges and Implementation Strategies in Nigerian Context
Abstract: Outcome-based education (OBE) is the way forward for coping with the rapid pace of globalization,effective technological development, effective lecture delivery, sustainable engineering practice, andhandling educational issues in Nigeria. This paper examined the challenges and implementationstrategies of OBE in the Nigerian context. The methodical approach of this paper involves checkinglecture delivery, research output, equipment of engineering faculties, and the quality of graduates inNigeria. Literature was reviewed especially on civil engineering education. …
Published in International Journal of Construction Engineering and Planning · Vol. 7, Issue 1, 2021 · pp. 6–13 Read article
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Risk Map For Delay Causes in Construction Projects in Palestine: Contractors' Perspective
Abstract: This study is conducted to identify the main risks in construction projects in Palestine from contractors’ perspective. Questionnaire survey is the tool used to achieve the objectives of the study. 41 critical risk factors in projects associated with project duration were identified and classified as external and internal factors. The risk map for the investigated causes created based on their perceived severity and frequency of occurrence. The findings reveaeled 29 …
Published in International Journal of Construction Engineering and Planning · Vol. 9, Issue 1, 2023 · pp. 46–56 Read article
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Improving Durability of Asphalt Pavement Wearing Course Submerged in Water Using Candle Wax as Water Proofing Agent: An Assessment Using RSI, FDI and SDI
Abstract: Asphalt pavements are designed and constructed to meet mostly stability and durability requirements during its design life. However, durability of asphalt pavements also heavily depends on other physical parameters as good drainage facility apart from having good material mix and structural designs. In the wake of asphalt pavements not supported by good drainage measures it is very likely that these pavements will fail sooner than later. On this basis, the …
Published in International Journal of Concrete Technology · Vol. 3, Issue 2, 2017 · pp. 1–10 Read article
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An Investigation on Aggregate Distribution in Concrete
Abstract: Falling behavior is generally studied by mathematicians. The first study is conducted by Comte de Buffon with name “Falling needles experiment” and is widely known. Buffon researched the falling needle behavior finding the fall of needles in relation with Pi. However, although aggregates are fallen to the mould in cement paste, falling behaviour of concrete is rarely studied considering the statistical parameters of the fall.Accordingly, an experimental study is conducted …
Published in International Journal of Concrete Technology · Vol. 7, Issue 2, 2021 · pp. 1–8 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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Study the effect of single and double layers of welded mesh & percentages of steel fiber on different sample
Abstract: Ferrocement is a thin composite structure made a rich mortar mix based on cement with relatively different type of wire mesh. The main objective of this research paper is to constructed a low cost insulation resistance residential building system for urban as well as for ruler development. Ferrocement technologies reduced cost, time and structural load at least 30% to 50%. It is long-lasting and cost-effective due to locally available material …
Published in International Journal of Concrete Technology · Vol. 8, Issue 2, 2022 · pp. 22–30 Read article
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Compressive Strength and Chloride penetration on Semi-Lightweight Concrete Made Up of Artificial Aggregates
Abstract: This paper deals with the properties of semi-Light weight concrete prepared by using Light weight wood ash pellets as coarse aggregates. It can be prepared by varying the cement content from 300 to 450 kg/m3. Optimum design mix can be finalised by studying the engineering properties such as compressive strength, split tensile strength, young’s modulus and rapid chloride penetration test. Various trial mixes have been attempted in the laboratory by …
Published in International Journal of Concrete Technology · Vol. 9, Issue 2, 2023 · pp. 14–25 Read article
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Evaluation of Soil Reinforcement Potential of Grass Variety
Abstract: Reinforcement potential of plant root is studied by many researches across the globe. This work aims to analyze the effect of grass root in the improvement of engineering properties of soil. Plant roots being a natural material help in enhancing the shear strength of soil. Field and laboratory studies were conducted on a grass variety (Co-4) and the soil reinforcement potential of the plant is studied. It is found that …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 1, Issue 1, 2015 · pp. 14–18 Read article
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Application of Suitable Admixtures (Lime and RHA) for Improvement of Pavement Subgrade
Abstract: Abstract The quality of a pavement depends on the strength of its sub-grade. The present investigation has been carried out with easily available materials like lime and rice husk ash mixed individually and in combinations with different proportions. The different percentages of lime with respect to weight of dry soil were 2%, 4%, 6%, 8% 10% and for rice husk ash (RHA) were 3%, 6%, 9% and 12%. In each …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 1, Issue 2, 2015 · pp. 14–31 Read article