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Optimizing Invasive ECT Sensor Dimensions for Conducting Pipe: A Simulation Study
Published 2025-01-01“…Various sensor dimensions are tested in a 150 mm length steel pipe, with a sinusoidal waveform source of 25 Vpp and a frequency of 400 kHz applied to the model in both homogeneous and non-homogeneous dielectric media conditions. …”
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Study on the Key Technology of Controlling the Instability of Deep High-Stress Coal and Rock Mass and Relieving the Danger
Published 2021-01-01“…In order to solve the problem of stress concentration and gas overrun in the process of uncovering high gas and thick coal seam, combined with the occurrence characteristics of coal seams in Wuyang Coal Mine, the measures of “hydraulic and mechanical cavity making + steel screen pipe + surrounding rock grouting” are adopted to establish a method for mutual verification of multiple effect test indexes of residual stress, residual gas content, coal seam moisture content, and microseismic signal characteristics, and the three-dimensional accurate analysis of the influence range of hydraulic cavitation is effectively realized. …”
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5410
Influence of the Transducer-Mounting Method on the Radiation Performance of Acoustic Sources Used in Monopole Acoustic Logging While Drilling
Published 2025-01-01“…The radiated acoustic pressure signal was unaffected by a steel protective cover (thickness = 0.5 mm). Conversely, increasing the cover thickness reduced the energy of the radiated acoustic signal. …”
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Analysis on Influence Factors of Roadway Instability in High-Stress, Steeply Inclined Extra-Thick Coal Seam
Published 2021-01-01“…Through the experiment, it is concluded that the FRP bolt with a diameter not less than 27 mm is the first choice for the side support of the working face in the mining roadway, then ribbed steel bolt with a diameter not less than 20 mm for the nonworking face, and the length of the anchor rod not less than the range of the loose circle. …”
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Cooperative Preparation of Glass-ceramics by Blast Furnace Slag and Low-carbon Chromium Iron Alloy Slag
Published 2024-12-01“…In order to make high-value utilization and harmless treatment of bulk industrial solid waste, CaO-MgO-Al2O3-SiO2-Cr2O3 system glass-ceramics were prepared by melting method with Baotou Steel blast furnace slag, low-carbon chromium iron alloy slag and quartz sand as the raw materials. …”
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Flexible Bench-Scale Recirculating Flow CPC Photoreactor for Solar Photocatalytic Degradation of Methylene Blue Using Removable TiO2 Immobilized on PET Sheets
Published 2016-01-01“…CPC reflectors are made of stainless steel 304. The prototype was mounted on a platform tilted at 30°N local latitude in Cairo. …”
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5419
Water Model Study on Alloy Melting and Mixing in RH Refining Process
Published 2025-01-01“…[Purposes] At different stages of RH refining process, a large weight of alloys are added to adjust the composition of steel. The motion, melting, and mixing of alloy in RH determine the production rate of refining process. …”
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