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1652 articles for “soil-gas geochemistry”
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Managed Pressure Drilling for Improved Well Control: A Cross-Case Comparative Study (2015–2025)
Abstract: Managed Pressure Drilling (MPD) has matured over the past decade from a specialist technique applied to challenging wells into a mainstream drilling capability spanning ultra-HPHT exploration, deepwater development, unconventional tight-gas multi-well campaigns, and naturally fractured sour-gas reservoirs. Despite this maturation, the operational question of which MPD variant should be applied to a given well has been addressed in the literature case-by-case rather than through structured comparative synthesis. This paper presents …
Published in Journal of Petroleum Engineering & Technology · Vol. 16, Issue 2, 2026 · pp. 07–12 Read article
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Assessment of Agricultural Potentials and Constraints of Natural Resources Management for Research Implementation in Gedeo Zone South Ethiopia Region
Abstract: This study aimed at assessing agricultural potentials and constraints of natural resources management for research implementation in Gedeo zone south Ethiopia Region. The result indicates that the use of organic and inorganic fertilizers was not efficient and the crop yield was decreasing from year to year. Use of organic fertilizer is for only high value crops of enset and coffee without determined rate. Farmers were not practiced organic fertilizers like …
Published in Research & Reviews : Journal of Agricultural Science and Technology · Vol. 15, Issue 2, 2026 · pp. 82–93 Read article
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Experimental Study on Effect of Recycled Epoxy Powder Reinforcement on Tensile Behavior of Acrylonitrile Butadiene Styrene
Abstract: Thermosetting plastic found wider application in the field of Aerospace, Aircraft, Wind Turbines, Marine and construction due to their long life, light weight and high strength. Among thermosets, epoxy is the major contributor. The world epoxy resin usage is almost 3.6 million tons in the year 2022 and it may cross 5.91 million tons by 2029. At their end of life most of it goes to land filling which leads …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 306–315 Read article
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Evaluating the Environmental Impact of Mining: Procedures, Outcomes, and Sustainable Remediation
Abstract: Mining is necessary for economic growth and getting resources, yet also has a big impact on the environment. This article looks at the different ways that mining affects the environment, such as land degradation, deforestation, water pollution, air pollution, and loss of biodiversity. Mining on the surface and underground can cause soil erosion, damage ecosystems, and pollute groundwater and surface water with heavy metals and harmful compounds. Furthermore, the emission …
Published in International Journal of Minerals · Vol. 2, Issue 2, 2025 · pp. 12–24 Read article
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Development and Performance Evaluation of a Multi-Purpose Power Tiller for Small-Scale Farming Applications
Abstract: This project outlines the development and testing of a multi-purpose power tiller tailored for small-scale farmers. Designed to reduce labor and enhance productivity, the machine integrates features for ploughing, seedbed preparation, and lightweight transportation. Key parameters including depth of tillage, working width, and fuel consumption were evaluated during field trials and benchmarked against manual operations. Results highlight its efficiency and potential for improving rural agricultural practices. Along with its primary …
Published in Journal of Automobile Engineering and Applications · Vol. 13, Issue 2, 2026 · pp. 14–19 Read article
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Analysis of Thermoelectric Generator for Automotive Exhaust Energy Recovery
Abstract: Utilizing waste heat from thermodynamic systems has shown to be a successful tactic for reducing environmental emissions and improving overall energy efficiency. About 40% of the chemical energy generated during fuel combustion is rejected by exhaust gases in internal combustion engines. It is possible to increase vehicle fuel efficiency and lower greenhouse gas emissions by harvesting this otherwise lost heat energy and turning it into useable electrical power. A viable …
Published in Trends in Mechanical Engineering & Technology · Vol. 16, Issue 2, 2026 · pp. 21–33 Read article
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Understanding the Role of Remote Sensing Techniques in Monitoring Air Quality for Effective Adherence to Environmental Impact Assessment Practices in Nigeria
Abstract: The paper reviews the Nigerian Environmental Impact Assessment (EIA) Act, outlining the established air quality thresholds and emission caps for stationary sources. The standard applies to; common pollutants like sulphur dioxide, carbon monoxide, ozone, particulate matter and nitrogen oxides; toxic metals such as arsenic, nickel, cadmium and mercury; as well as volatile organic compounds, ammonia, antimony, zinc, formaldehyde and radon.It also describes the major classifications of remote sensing applications, including …
Published in International Journal of Satellite Remote Sensing · Vol. 4, Issue 2, 2026 Read article
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Formation, Analysis and Characterization of Wood Pyrolysed Oil
Abstract: Pyrolysis of wood is the possible path for converting biomass to higher valuable products such as bio-oil, bio-char and bio-gas. Bio-oil or liquid bio-fuels have higher heating values, so it can store and transport more conveniently the by-products bio-char and bio-gas, which can be used to provide heat required in the process. This work is focused on the formation, analysis and characterization of bio-oil which was obtained from the mixed …
Published in Emerging Trends in Chemical Engineering · Vol. 3, Issue 2, 2016 · pp. 36–41 Read article
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Excess Enthalpy of Mixing for Binary and Ternary System – A Review
Abstract: The thermodynamic properties of the mixtures containing hydrocarbon and ether are of significant attention in view of the fact that ethers are used as oxygenating agents in gasoline blending technology. Several oxygenated compounds are added to gasoline to enhance the octane number and to reduce air pollution. Excess enthalpy of mixing data of both binary and ternary system can be obtained by using various equipment and experimental procedures are reviewed. …
Published in Emerging Trends in Chemical Engineering · Vol. 1, Issue 1, 2014 · pp. 57–69 Read article
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Reduction of Pollutant for SI Engine Using Argon and Oxy-hydrogen
Abstract: Reducing the emission associated with oil combustion is gaining increasing interest worldwide. Due to their dangerous effects on human health, vegetation and climate, various pre-combustion, in-cylinder and post combustion techniques have been tried for their abatement. The combustion of a hydrocarbon fuel with air produces mainly carbon dioxide(CO2) and Water(H2O). However, internal combustion engines are not perfectly efficient, so some of the fuel is not burned, which results in the …
Published in Journal of Automobile Engineering and Applications · Vol. 2, Issue 2, 2015 · pp. 29–34 Read article
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Design Analysis of Safety Airbags for Electric Vehicles
Abstract: Airbag is one of the most important and crucial safety feature for a passenger in a collision scenario travelling in a vehicle. This feature becomes more important when the vehicle is electricity driven. The airbag must be fully inflated in less than 100 milliseconds that requires a spontaneous reaction of Guanidine Nitrate. In this research experiments on a standard Airbag Deployment Apparatus were conducted, results on effect of different pressure …
Published in Journal of Automobile Engineering and Applications · Vol. 10, Issue 3, 2023 · pp. 1–8 Read article
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Harnessing Solar Energy to Supply Power to Far Flung Areas and Challenges
Abstract: AbstractIncrease in land and air pollution during the conversion of energy sources of fossil fuel such as oil, coal and natural gas have their adverse effects on environment and ecology. Depleting quality of these sources raises the question of sustainability in the long run, there by compelled humanity to go in search of the other alternatives. In this context, the solar sources of energy have attracted the global attentions and …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 8, Issue 3, 2017 · pp. 50–58 Read article
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Building a Resilient Climate Regulatory Ecosystem for Nigeria
Abstract: Terrestrial ecosystems, which store more carbon than the atmosphere, are vital to influencing carbon dioxide-driven climate change. Climate and land-use change are critical and interlinked components of the Carbon budget in human-dominated landscape, using the InVEST model maps of land use and stocks in four Carbon pools (aboveground biomass, belowground biomass, soil, dead organic matter) are used to estimate the amount of Carbon currently stored in the landscape and the …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 11, Issue 2, 2020 · pp. 46–62 Read article
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Low cost method for fuel production from Plastic waste
Abstract: There is a huge problem of plastic waste remaining bulbous, eventhough many solutions are put forth. The production of synthetic plastic has reached 400 million tons worldwide, from which 50% is thrown in landfills or recycled; 15 million tons reach seas and oceans.Inceneration and other waste management methods have many limitations, which includes hazards of secondary pollutants. And moreover, there is no more land filling space for waste accumulation. Land …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 12, Issue 3, 2021 · pp. 41–47 Read article
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Recovery of Liquid Hydrocarbon Fuels from Polypropylene Waste Plastics via Catalytic Pyrolysis
Abstract: Process of pyrolysis is a thermo-chemical method conducted at high temperatures and usually in presence of catalysts. Dissimilar type of natural and synthetic catalysts are used for alteration of organic wastes into cherished fuels. The aim of this work is conversion of waste production of liquid fuel using catalyst that produced from rice husk ash. Waste plastic was pyrolyzed at temperature range 430-470oC and obtained products were liquid fuel, gas …
Published in Journal of Catalyst & Catalysis · Vol. 7, Issue 1, 2020 · pp. 33–48 Read article
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Application of flux cored arc welding (fcaw) without pre-heating for heavy structures in ship building fabrication & construction of heavy offshore structural steels
Abstract: In fusion welding processes, the reason often given to explain the need for preheating, controlling the inter pass temperature (in multi-pass welds), and post-weld heat treatment (PWHT) is to reduce the risk of residual stresses and it can be removed by heating weldment in the heat affected zone (HAZ). Cold cracking is a hydrogen embrittlement phenomenon, often referred to as hydrogen induced cracking or HAZ cracking. During the construction and …
Published in Journal of Construction Engineering, Technology & Management · Vol. 10, Issue 1, 2020 · pp. 20–28 Read article
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An Overview Study on CO2 Absorption in High-strength Concrete
Abstract: Today, global warming is a major issue facing all over the world. The main reason behind an increase in the effect of greenhouse gas. The emission of carbon dioxide (CO2) from the construction industry contributes 9% to increasing greenhouse gas therefore it is our responsibility to work on the reduction of CO2. In this paper, we study CO2 absorption by using zeolite powder in concrete as a partial replacement for …
Published in Journal of Construction Engineering, Technology & Management · Vol. 12, Issue 3, 2022 · pp. 11–17 Read article
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A Comparative Analysis of the Automotive Parts Using the Electre Method
Abstract: The engine one of the most important components of a vehicle and the performance of the vehicle depends on it. Every It is the heart of the vehicle. It's a complex an engine that converts heat from burning gas into power Designed to change turn road wheels.The automobile gave people more personal freedom and provided access to jobs and services. This is Better roads and transportation led to growth. For …
Published in Journal of Control & Instrumentation · Vol. 13, Issue 3, 2022 · pp. 16–27 Read article
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Automatic Irrigation System Utilizing Internet of Things
Abstract: In this paper, we show how the Internet of Things (IoT) may be effectively used in conventional agriculture. The number and quality of agricultural goods are both increased by this new approach. This study utilized the Internet of Things (IoT) with the help of a few sensors, including a soil moisture sensor to determine the amount of moisture in the soil, a temperature and humidity sensor to monitor changes in …
Published in Journal of Control & Instrumentation · Vol. 13, Issue 3, 2022 · pp. 9–15 Read article
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An Application of PARETO Chart for Investigation of Defects in FNB Casting Process
Abstract: Casting is one of the widely used manufacturing processes consisting of melting and pouring the metal into the mould to get the desired shape. Furan no-bake system is a binder system consisting of furan resin and acid catalyst. It is a fast growing system due to its excellent surface finish and dimensional accuracy. Although having high dimensional accuracy, many defects arise in FNB casting such as sand inclusion, gas porosity, …
Published in Journal of Experimental & Applied Mechanics · Vol. 9, Issue 1, 2018 · pp. 33–39 Read article