Results 11 to 20 of about 2,878,311 (299)
Pressure-Enhanced Penetration with Shaped-Charge Perforators [PDF]
Abstract Computational analysis demonstrates that the penetration of a shaped charge jet can be enhanced by at least 25% by imploding the liner in a high pressure light gas atmosphere. The gas pressure helps confine the jet on the axis of penetration in the latter stages of formation.
Lewis A. Glenn, Glenn, L. A.
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In real-world water injection applications, an in-line injection facilitates a pressure differential that boosts the current flow. A pressure differential created by the injection of a pressurized flow into the mainline of flow is derived from the momentum transfer equation.
Prashant Unnikrishnan Nair
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Arc pressure and weld metal fluid flow whilst using alternating shielding gases Part 1 : arc pressure measurement [PDF]
As part of an ongoing process to fully evaluate the effects of an alternating shielding gas supply on gas shielded welding processes, a comparison between the arc pressures generated using argon, helium, alternating shielding gases and pulsed GTAW has ...
Campbell, Stuart +2 more
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Derivation of forces acting on the liquid weld metal based on arc pressure measurements produced using alternating shielding gases in the GTAW process [PDF]
As part of an ongoing process to fully evaluate the effects of an alternating shielding gas supply on the gas tungsten arc and gas metal arc welding processes, a comparison between arc pressures produced using argon, helium, alternating gases and GTAW-P ...
Campbell, Stuart +2 more
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Simulation of CPT penetration in sensitive clay [PDF]
This paper presents the results from numerical simulations of CPTu penetration in a natural clay combining the SCLAY1S constitutive model with a large deformation Finite Element framework including a coupled deformation and porewater pressure formulation.
Dijkstra, Jelke, +7 more
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Melt Pool and Keyhole Behavior Analysis for Deep Penetration Laser Welding [PDF]
One usually defines the main characteristic of the welding performances of a given laser system by its “penetration curve” that corresponds to the welding depth as a function of the welding speed Vw for a given set of operating parameters.
R Fabbro, Fabbro, R, FABBRO, Rémy
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End fittings are essential components in marine flexible pipe systems, performing the two main functions of connecting and sealing. To investigate the sealing principle and the influence of the temperature on the sealing performance, a hydraulic-thermal ...
Liping Tang +3 more
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Liquid‐Assisted Single‐Layer Janus Membrane for Efficient Unidirectional Liquid Penetration
Unidirectional liquid penetration plays an important role in many fields, such as microfluidic devices, biological medical, liquid printing, and oil/water separation.
Zhihong Zhao +8 more
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Intraocular Pressure Following Penetrating Keratoplasty
American Journal of Ophthalmology 68 (1969) 835-844.
Department of Ophthalmology, University of Florida College of Medicine, Gainesville, FloridaDepartment of OphthalmologyUniversity of Florida College of MedicineGainesvilleFlorida ( host institution ) +2 more
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Penetration of a glass-faced transparent elastomeric resin by a lead-antimony-cored bullet [PDF]
The penetration of the lead antimony-cored 7.62 mm × 51 mm bullet into a glass- faced polyurethane elastomeric polymer resin has been studied. The resulting craters in the resin contained elongated bullet core material that had a significant amount of ...
Hazell, P.J. +5 more
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