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141 articles for “Rock”
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Use of Geohydrological Controls to Tackle Geogenic Arsenic Contamination of Hard Rock Aquifer: A Case Study from Central India
Abstract: AbstractArsenic poisoning of potable groundwater is considered one of the most severe health hazard in recent years. Reporting of high geogenic arsenic contamination in groundwater is increasing day by day within the country. The hydrothermal phase following the batholithic intrusion is responsible for sulfide mineralization and related enrichment of Arsenic (As) concentration in the granite-meta rhyolite rocks along the Kotri lineament of central India. Isolated clusters of high As groundwater …
Published in Journal of Geotechnical Engineering · Vol. 3, Issue 2, 2016 · pp. 23–29 Read article
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Lithological Characterization and Reservoir Characteristics by Computerized Tomography Assisted Micro Density Log of the Rock
Abstract: Lithological characterization of the unconsolidated rock from heavy oil field has been attempted using X-ray computerized tomography imagine techniques. A micro density log is generated to obtain the hidden information of such variations along the depth at microlevel, which normally is not available through conventional log. Useful exploratory leads have been obtained through characterization of the nature of reservoir using simple petro-physical techniques on conventional cores by defining reservoir grade, …
Published in Journal of Petroleum Engineering & Technology · Vol. 7, Issue 1, 2017 · pp. 9–11 Read article
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DURABILITY ASSESSMENT OF SELF COMPACTING, SELF CURING CONCRETE INCORPORATING CRUSHED ROCK POWDER AND MINERAL ADMIXTURES
Abstract: Curing plays a crucial role in achieving the desired strength, characteristics, and durability of concrete. Negligent curing practices can lead to adverse effects on hydration and mechanical properties of concrete. In recent times, self-curing concrete has gained significant attention due to its potential in reducing water loss through the use of self-curing agents. The Present Research study focus on investigation on durability characteristics of self-curing self-compacting concrete using crushed rock …
Published in Journal of Polymer & Composites · Vol. 11, Issue 10, 2023 · pp. 25–35 Read article
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Investigation of Rock Dust Suitability as Improvement Material of Subgrade and Sub-base Laterite Material of Elerinjare, Kwara State, Nigeria, in Pavement Construction
Abstract: The current study involves the improvement of laterite soil by addition of granite dust. The laterite and dust used for the study were collected at Elerinjare town, Ilorin. The analyses were done in a laboratory. The tests are compaction test, specific gravity, California bearing ratio (CBR) (soaked and unsoaked), Atterberg's limit, Sieve analysis, and bulk density. In this investigation, an attempt was made to stabilize lateritic soil using quarry dust …
Published in Journal of Geotechnical Engineering · Vol. 10, Issue 2, 2023 · pp. 41–57 Read article
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The Effects of Hydro Confining Pressure on the Flow Properties of Sandstone and Carbonate Rocks
Abstract: There is a significant effect of the hydro confining pressure of the core holder on the flowing properties of the formation rocks. This effect is caused due to the mechanical elastic deformation of the core when carrying out laboratory studies of the water shutoff and polymer compositions. Consequently, this deformation will cause changing in the permeability and voids storage capacity of the studied core samples. Therefore, under the laboratory conditions …
Published in Journal of Petroleum Engineering & Technology · Vol. 7, Issue 1, 2017 · pp. 44–47 Read article
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Estimation of Dulling Rate and Bit Tooth Wear Using Drilling Parameters and Rock Abrasiveness
Abstract: Optimisation of the drilling operations is becoming increasingly important as it can significantly reduce the oil well development cost. One of the major objectives in oil well drilling is to increase the penetration rate by selecting the optimum drilling bit based on offset wells data, and adjust the drilling factors to keep the bit in good condition during the operation. At the same time it is important to predict the …
Published in Journal of Petroleum Engineering & Technology · Vol. 9, Issue 3, 2019 · pp. 1–20 Read article
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Separation of harmful solids from fuel liquid in the tank of rocket engine and liquids in the life-support system of automatic spacecraft in the conditions of space flight.
Abstract: The paper presents the developed methods of harmful solids separation from fuel liquid in the fuel tank of rocket engine and liquids in the life-support system of automatic spacecraft using the action on the liquid of gravitational force (g - Factor) change or combined vibration and DC (Direct Current) electric field effect on the liquid that are simple on their of construction, economically highly effective and productive, mobile, and can …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 6, Issue 1, 2019 · pp. 23–32 Read article
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Groundwater Investigation Using Remote Sensing and GIS in Hard Rock Terrain
Abstract: A large amount of rainwater is lost through run off, In order to ensure a judicious use of groundwater proper evaluation is required. In the present study, an integrated Remote Sensing and GIS based methodology was developed for the investigation of groundwater and selection of artificial recharge sites in a hard rock terrain. Main objectives of these studies are delineation of groundwater potential zones in the area, carry out trend …
Published in Journal of Water Resource Engineering and Management · Vol. 5, Issue 3, 2018 · pp. 17–24 Read article
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Study on the Rocking Phenomenon of Parachute Rope
Abstract: With the constant development of computer technology and the development of numerical simulation techniques, the simulation of the dynamics of the parachute is becoming increasingly accurate. To eliminate the effects of large deformation of the grid in the conventional parachute simulation, we chose the parachute model using the smooth particle hydrodynamics method and performed a steady-state fluid-solid coupling numerical simulation, which is in good agreement with the calculated gas power …
Published in Trends in Mechanical Engineering & Technology · Vol. 15, Issue 2, 2025 · pp. 1–7 Read article
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Experimental Investigations of Mass Flow Rate on Regression Rate of Hybrid Rocket
Abstract: A number of practical hybrid propulsion systems developed for booster and upper stage application,at different Centers across the globe. The regression rate of hybrid fuel plays an important role ondevelopment of viable hybrid propulsion system. In the present investigation an effort has been madeto study the regression rate behavior of PVC-DBP((C 2 H 3 Cl) n )-DBP(C 16 H 22 O 4 ) hybrid fuel burning inthe stream of gaseous …
Published in Journal of Experimental & Applied Mechanics · Vol. 12, Issue 2, 2021 · pp. 31–51 Read article
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Comparison of Several Clinical Scoring Systems in Predicting the Outcome of Variceal Bleeding
Abstract: Background: Stratification of variceal bleeding patients into high-risk and low-risk group is very important to guide them through the suitable clinical pathway and to save the medical costs. We purposed to find out the best scoring system in the prediction of rebleeding and death after variceal bleeding by comparing four clinical scoring systems(clinical Rockall score, complete Rockall score, AIMS65 score, Child-Pugh score) which seemed to be applicable and simple. Method: …
Published in Research and Reviews: A Journal of Medicine · Vol. 15, Issue 2, 2025 Read article
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Isolation and Evaluation of Aspergillus Niger : A Fungi Implicated in Infectious Diseases and its application as potential Biofertilizer
Abstract: In the quest to improve the agronomic effectiveness of Rock Phosphate (RP), a widely available and cost-effective phosphate fertilizer, this study aimed to overcome its limited solubility by isolating fungal strains capable of solubilizing rock phosphate. Soil samples were collected from Garhmukteshwar, Hapur, for the isolation process. Among several isolates, three strains exhibited the highest rock phosphate solubilization within a seven-day timeframe, coinciding with a significant decrease in soil pH. …
Published in Recent Trends in Infectious Diseases · Vol. 1, Issue 2, 2024 · pp. 29–34 Read article
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Spectral Signatures to Achieve Accuracy
Abstract: AbstractSignature of spectrum is data convert appearances those to make for least accuracy variation by generalization and extension in place of expansion. Pixel form has subjected to change from multi-spectra issued to hyperspectral formation after issue of spectroscopic forms. Spectral signatures perform have scaled to measure from agronomy to metallurgical element detecting prosecution. Optimism appeared in species differentiation between coconut and palm oil plantation. Updating forms from spectroscopic hyper-spectra have …
Published in Recent Trends in Electronics Communication Systems · Vol. 6, Issue 3, 2019 · pp. 26–31 Read article
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Cretaceous–Tertiary Rift Basins of Northwestern Kenya: Tectonics, Stratigraphy, and Petroleum Implications
Abstract: This study looks at the potential for oil and gas in northwest Kenya, giving a broad overview of the geology, tectonic (earth movement) features, and underground rock layers in four main basins from the Cretaceous to Tertiary periods: Lotikipi, Lake Turkana, Lokichar–Kerio, and Chalbi. These are part of the larger East African Rift System. Recently, important signs of oil and gas structures have been found in the Lokichar Tertiary Basin …
Published in Journal of Geotechnical Engineering · Vol. 13, Issue 1, 2026 · pp. 25–54 Read article
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Solutions to Problems Faced in Well Log Analysis in fractured metamorphic Reservoir Systems Due To Multiple Porosities and Lithology’s
Abstract: Metamorphic rocks are the most bottomless non-terrigenous sedimentary rock and are made essentially out of transformative minerals. Most metamorphic rocks shape from calcareous stores that collect in marine conditions running from salt marshes to reefs to profound sea bowls. Unmistakable and one of a kind parts of transformative rocks are their dominatingly intrabasinal starting point, their essential reliance on natural exercises for their constituents and their powerlessness to change by …
Published in Journal of Petroleum Engineering & Technology · Vol. 9, Issue 1, 2019 · pp. 36–42 Read article
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Stable control of the motion of gas bubbles dissolved in a vibrating fluid in microgravity conditions
Abstract: Previous theoretical and experimental studies of the effect of vibration on gas bubbles, dissolved in a fluid, permitted to establish the localization and stable position of a “swarm” of gas bubbles at a certain level of fluid in the vessel corresponding to a certain frequency and vibration acceleration, aswell as to the volume of a swarm of gas bubbles. The control of a “swarm“ of gas bubbles in a fluid …
Published in Recent Trends in Fluid Mechanics · Vol. 8, Issue 1, 2021 · pp. 34–44 Read article
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Probable Causes of Cracks on selected Buildings at Akrowa in Afigya Kwabre District, Ghana
Abstract: This work evaluated the nature of the foundation soils and cracks on twelve representative buildings at Akrowa, in the Afigya Kwabre District near Kumasi in Ghana. Age, material used whether clay/concrete, dimensions of cracks on the buildings and tests for geotechnical parameters of foundation soils such as moisture content, bulk density, specific gravity, particle size distribution, Atterberg limit and direct shear were carried out on soils from four pits dug …
Published in Journal of Geotechnical Engineering · Vol. 10, Issue 3, 2023 · pp. 29–39 Read article
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A Study on the Low Salinity Waterflooding (LSW) in a Part of a Depleted Oilfield of Upper Assam Basin
Abstract: Maximizing the hydrocarbon recovery from depleted oilfields is the biggest challenge now a days which becomes an opportunity for advanced EOR technologies. One of such EOR technology that can promote the oil recovery efficiency from such fields is the low salinity waterfloofing (LSW) which gains the attention of many researchers due to its easiness to use implications, less cost and environment-friendly nature. Different studies have shown that fines migration, pH …
Published in Journal of Petroleum Engineering & Technology · Vol. 5, Issue 3, 2015 · pp. 30–38 Read article
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Estimation of Dolomite Resources in South Central Part of Anantapur District, Andhra Pradesh, India, Using Geospatial Techniques
Abstract: Dolomite CaMg (Co3)2, is the common rock forming mineral and composed of the carbonates of calcium and magnesium with an equivalent proportion. Dolomite is the primary integral of the sedimentary rock called dolostone and the metamorphic rock called as dolomitic marble. Our method is allowing to confidently determine the location and their boundaries of local geological structures that are likely to contain dolomite resources in the study area of Anantapur, …
Published in Journal of Remote Sensing & GIS Read article
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Molluscan distribution in and around Munroe Island, Kollam, Kerala
Abstract: The current investigation endeavors to comprehend the variation of Molluscan species, specifically gastropods, at Munroe Island in the Kollam district of Kerala. Munroe Island, is a traditional backwater village positioned at the meeting point of the Ashtamudi backwater and the Kallada River system. Comprising of eight small islands, it covers a combined area of 13.4 km2.The primary lithology of the island consists of sedimentary rocks on the mainland and low-lying …
Published in International Journal of Marine Life · Vol. 1, Issue 1, 2024 · pp. 1–7 Read article