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Experimental study on the effect of impact target distance on coal breaking efficiency of high-pressure gas–liquid two-phase jet [PDF]
The effective impact target distance is one of the key parameters determining whether high-pressure gas–liquid two-phase jet technology can be applied in underground coal breaking and permeability enhancement projects. To investigate the effect of target
Yang Li
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In an offshore operational environment, complex loads such as the hook load, stand load and wind load play a crucial role in the structural strength and reliability of the offshore derrick. Previous studies have mainly focused on the effect of a specific
Zhengbo Tan +5 more
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CO2 drilling is a promising underbalance drilling technology with great advantages, such as lower cutting force, intense cooling and excellent lubrication.
Can Cai +4 more
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In order to determine the construction parameters of the vibrating rod compaction method to treat the collapsible loess foundation, the self-developed vibrating rod compaction method equipment is used to carry out field tests on the collapsible loess ...
ZENG Biao 1, 2, ZHANG Ding-wen 1, 2, LIU Song-yu 1, 2, YANG Yong 3, ZHANG Kun 4, WANG Jia-le 4, DU Guang-yin 1
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Heat-fluid-solid coupling mechanism of supercritical carbon dioxide jet in rock-breaking
Aiming at the synergistic rock-breaking mechanism of supercritical carbon dioxide (SC-CO2) jet pressure and temperature difference, a heat-fluid-solid calculation model of rock-breaking stress was established and verified to be effective, and the ...
Mukun LI +5 more
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Background: In order to reduce the fear and anxiety of injection during root canal procedures, Madajet injection technique was substituted for the first time among the adult patients to obtain its efficacy and to overcome the painful procedure during the
Mahaboob Shahul Hameed +4 more
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The martensitic stainless steel shot with a high number of cycles was applied to the abrasive water jet (AWJ) to study the effect of jet pressures on the surface layer characteristics of 2205 duplex stainless steel.
Jiawei Liu +4 more
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The enhancement in the jet pressure ratio and jet velocity contributes to expanding the control efficiency and control boundary of circulation control airfoil under high subsonic incoming flow. However, because of an excessive jet pressure ratio, the jet
Meng He, Liu Zhang, Chang Li, Lei Zhao
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Chaos in atmospheric pressure plasma jets [PDF]
We report detailed characterization of a low-temperature atmospheric-pressure plasma jet that exhibits regimes of periodic, quasi-periodic and chaotic behaviors. Power spectra, phase portraits, stroboscopic section and bifurcation diagram of the discharge current combine to comprehensively demonstrate the existence of chaos, and this evidence is ...
J L Walsh, F Iza, N B Janson, M G Kong
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High-Pressure Methane Jet: Analysis of the Jet-Obstacle Interaction [PDF]
The study of unplanned high-pressure gas releases is of paramount importance in the industrial safety framework because of the possible large consequences, both in case of flammable and toxic substances leakage. In addition, if an obstacle is involved in the release, it is known that the main effect on the jet behavior is the enhancement of the risk ...
Colombini C., Busini V.
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