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Groundwater resources development for a sustainable water supply in developing countries: A case study of Ghana
Published 2025-12-01“…Poor selection and application of geophysical methods, shallow drilling depths above productive fractured zones, complete reliance on thin shallow aquifers, poor construction of drilled boreholes, lack of maintenance of mechanized boreholes, and limited aquifer recharge in some parts of the country are some of the potential causes of frequent borehole drilling failure, low borehole yields, and drying up of hand-dug wells and some boreholes during the dry seasons. …”
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102
Versatile Gyroinclinometer Based on a Single Axis Angular Rate Sensor
Published 2023-10-01“…To develop an inexpensive versatile GI that maintains a balance between shock resistance and accuracy (com[1]parable to fiber-optic ARS) based on a single-axis vibrating ring gyroscope (VRG) with an induction-type resonator made using MEMS technology.Materials and methods. The method of multi-position compassing with a single uniaxial ARS was implemented by transition from simultaneous biaxial measurements to uniaxial measurements in five successive positions of the frame (through 90°) along the toolface angle. …”
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103
Search for oil deposits in YuS2–3 formations of the Southern part of the Priobskoye field based on a seismogeological model using exchroma<sup>SG</sup> technology
Published 2024-11-01“…The results were validated during implementation of the exploration drilling program in 2021—2022. …”
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104
The Influence of Active Breaks on Neck Pain Relief in Office Settings: A Systematic Review
Published 2025-06-01“…This literature review aims to synthesise current evidence on the effectiveness of active or exercise-based breaks in reducing NSNP among office-based populations. Methods. A literature review was conducted using databases including PubMed, Scopus, ScienceDirect, Google Scholar, and PEDro. …”
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An experimental study on the yield strength of cement grout for grouting in the limestone area of a coal seam floor
Published 2025-04-01“…Objective and MethodsIn recent years, regional grouting through ground directional drilling has become the preferred technique for water disaster prevention and control in floor limestones in a coal mining area. …”
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Formation permeability estimation using mud loss data by deep learning
Published 2025-04-01“…This current research focuses on the application of mud loss data and deep learning to estimate the formation’s permeability. To implement and validate our methodology, it is considered pilot cases including reservoir and drilling parameters values (depth, formation type, formation thickness, mud density, mud viscosity, and formation permeability). …”
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Advancements and future prospects in the fundamental theories of rock blasting research Ⅳ — Damage evaluation
Published 2025-04-01“…Drilling and blasting methods employ mechanical drilling and explosive detonation to fragment rocks. …”
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108
Research on Two-Stage Data Compression at the Acquisition Node in Remote-Detection Acoustic Logging
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109
Novel approach for modelling low enthalpy geothermal in deep sedimentary aquifers: a case study of 40 years of production data in the Dogger formation
Published 2024-12-01“…Abstract Geothermal energy in the Paris urban area has been exploited since the early 1970s. Deep drilling in the Paris sedimentary basin has targeted hot brine in the Dogger formations from a mid-Jurassic carbonate rocks series. …”
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Effect of the competency-based Helping Mothers Survive Bleeding after Birth (HMS BAB) training on maternal morbidity: a cluster-randomised trial in 20 districts in Tanzania
Published 2019-03-01“…We conducted a cluster-randomised two-arm trial in Tanzania to assess the effect of a 1-day competency-based training ‘Helping Mothers Survive Bleeding after Birth (HMS BAB)’ followed by eight weekly drills on postpartum haemorrhage (PPH)-related morbidity and mortality.Methods Twenty districts in four purposefully selected regions in Tanzania included 61 facilities. …”
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111
Analysis of some error-causing factors in two-dimensional geoelectrical studies and providing a solution to minimize them
Published 2024-10-01“…Nowadays with the introduction of newer technologies such as automatic electrode switching geoelectric equipment and also switch boxes, the suggested optimal method can be implemented more easily. Geoelectrical surveys with this method (n=1 and intermittent increase of the electrode distance) may reduce the speed of the operation and be less economical for contractors, but the results of the geoelectrical studies conducted with this method are much more reliable Figure 6. shows one of the case studies in which authors used above suggested method and the results were excellent and RMS was very low. …”
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Identifying the Causes of Vulnerability and Assessing the Needs of Disabled People Before, during and After Flood and Earth-quake: Thematic Scoping Review
Published 2025-06-01“…Conclusion: Enhancing awareness and implementing preparedness drills can be the most effective strategies to reduce the vulnerability of this population…”
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113
HYGIENIC ASSESSMENT OF WORKING CONDITIONS AND OCCUPATIONAL RISK IN COAL INDUSTRY WORKERS
Published 2023-05-01“…Factors of the labor process were assessed on the basis of SanPiN 1.2.3685-21; classes of working conditions were determined in accordance with Guideline P 2.2.2006-05; occupational risks were calculated according to the method of Mikhailuts A.P. et al. Results. A significant excess of the permissible noise level was detected at the workplaces of excavator and drilling rig operators, bulldozer operators, drivers of auxiliary equipment and dump trucks. …”
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114
Critical technologies and geology-engineering integration practices for deep CBM production in the Yanchuannan CBM field
Published 2025-01-01“…Objective and Methods This study introduces the adjustments for coalbed methane (CBM) production in the Yanchuannan CBM field‒the first deep CBM field in China. …”
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115
Technology of cavity completion in surface cluster wells for assisting rock cross-cut coal uncovering in high outburst coal seam
Published 2025-05-01“…The number of boreholes for in the test site has decreased by 24%, and the drilling length has decreased by 21%. The technical method described here can be further expanded to form the “coal-gas co-extraction method with borehole”, which is expected to achieve synergistic and efficient co-extraction of coal and gas in difficult to extract coal seams.…”
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Testing of wells with horizontal completion in the conditions of terrigenous deposits of the Vietnamese shelf
Published 2025-01-01“…A set of works to reduce risks in terms of wellbore wall stability, drilling and optimization of the horizontal section completion scheme has been developed and implemented. …”
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Technology and application of coal and CBM co-mining in east fifth panel of sihe mine
Published 2025-03-01“…At the same time, because the underground usually only rely on drilling for negative pressure extraction, the lack of coal seam anti-reflection means and transformation methods leads to insufficient gas extraction. …”
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Assessing the efficacy of adaptive capacity-building strategies in earthquake-prone communities
Published 2024-12-01“…This study uses the importance-performance analysis (IPA) method to assess the efficacy of adaptive capacity-building strategies in earthquake-prone communities. …”
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