Results 11 to 20 of about 308,569 (263)

Dynamic Response Analysis of the Bi-Tandem Axial Piston Pump with Dual-Loop Positive Flow Control under Pressure Disturbance

open access: yesActuators, 2023
The bi-tandem axial piston pump is an indispensable powerhouse in high-pressure and high-power engineering hydraulic systems, with its output flow response characteristics under pressure disturbance exerting a significant influence on the working process
Zhiyuan Sun   +3 more
doaj   +1 more source

A hydrate blockage detection apparatus for gas pipeline using ultrasonic focused transducer and its application on a flow loop

open access: yesEnergy Science & Engineering, 2020
This paper introduces a novel apparatus and the analyzing method for hydrate blockage detection in natural gas pipeline using the ultrasonic focused testing technique.
Xingbo Li   +6 more
doaj   +1 more source

THE DESIGN OF THE ARTERIOVENOUS VASCULAR LOOP DOES NOT AFFECT ITS PATENCY: EXPERIMENTAL STUDY [PDF]

open access: yesActa Ortopédica Brasileira, 2020
Objective: To evaluate the effect of the design of a femoral vascular loop with anastomosis in the femoral artery of rabbits on the presence of flow (patency) after seven days.
MATEUS SAITO   +5 more
doaj   +1 more source

Erosion-corrosion behavior of L80 steel under high velocity wet gas condition by flow loop method

open access: yes工程科学学报, 2018
With the continuous petroleum extraction from deep-water subsea gas fields, many long distance offshore natural gas pipelines have been constructed. The design parameters directly affect the gas flow velocity in pipelines, which may introduce high wall ...
LIU Guo-zhang   +7 more
doaj   +1 more source

The Effect of Impingement Velocity and Angle Variation on the Erosion Corrosion Performance of API 5L-X65 Carbon Steel in a Flow Loop

open access: yesMetals, 2018
Erosion corrosion performance of API 5L-X65 carbon steel was investigated at three different impingement velocities (3, 6 & 12 m/s), five different angles (15, 30, 45, 60, & 90°), and with/without solid particles (average particle size of 314
Ihsan UlHaq Toor   +3 more
doaj   +1 more source

Research on the flow-induced vibration characteristics based on heat–fluid–structure coupling in natural gas loop

open access: yesAIP Advances, 2023
To research the flow-induced vibration characteristics of the natural gas loop, unsteady numerical simulation is carried out on the loop calculation model under different ambient temperatures and different flow rates, and the influence of different flow ...
Yilong Qiu, Jia Ren, Xi Zhang, Siyu Chen
doaj   +1 more source

Wilson loop renormalization group flows [PDF]

open access: yesJournal of High Energy Physics, 2011
The locally BPS Wilson loop and the pure gauge Wilson loop map under AdS/CFT duality to string world-sheet boundaries with standard and alternate quantizations of the world-sheet fields. This implies an RG flow between the two operators, which we verify at weak coupling. Many additional loop operators exist at strong coupling, with a rich pattern of RG
Polchinski, Joseph, Sully, James
openaire   +2 more sources

Experimental investigation of two-phase natural circulation loop as passive containment cooling system

open access: yesNuclear Engineering and Technology, 2021
In this study, we experimentally investigate of a two-phase natural circulation loop that functions as a passive containment cooling system (PCCS).
Sun Taek Lim   +4 more
doaj   +1 more source

Thermal-hydraulic simulation and evaluation of a natural circulation thermosyphon loop for a reactor cavity cooling system of a high-temperature reactor

open access: yesNuclear Engineering and Technology, 2020
The investigation into a full-scale 27 m high, by 6 m wide, thermosyphon loop. The simulation model is based on a one-dimensional axially-symmetrical control volume approach, where the loop is divided into a series of discreet control volumes.
R. Swart, R.T. Dobson
doaj   +1 more source

Controlling heat ratchet and flow reversal with simple networks

open access: yesPhysical Review Research, 2023
We investigate ratcheting heat flow in simple networks consisting of a one-dimensional nonlinear chain with a self-coupled loop when the average thermal bias is zero.
Shuan Wang   +4 more
doaj   +1 more source

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