Results 11 to 20 of about 618,566 (256)

Research on the Volumetric Efficiency of 2D Piston Pumps with a Balanced Force

open access: yesEnergies, 2020
Axial piston pumps with high rotational speeds are required in many fields to increase the power-to-weight ratio. However, three main sliding friction pairs in the pump restrict the increase in rotational speed.
Yu Huang   +4 more
doaj   +1 more source

Leakage control for a flat flange model with a gap based on sealing liquid viscosity

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2021
Flat flanges are sealed using a gasket, used to prevent leakage between the static surfaces. Gaskets comprise synthetic materials such as rubber, copper alloys, and plastic and they are inserted between two planes to strengthen the sealing performance ...
Song GAO, Toshiharu KAZAMA
doaj   +1 more source

Laboratory Investigation of the Leakage Characteristics of Unburied HDPE Pipes [PDF]

open access: yes, 2015
In this research work, the leakage characteristics of the viscoelastic material HDPE is investigated and compared to other materials like uPVC which is elastic and galvanised steel which is rigid in nature. Under no axial loading, the deformation in HDPE
King, R.T.F. Ah   +6 more
core   +1 more source

Enhancing the Lifetime of the Pneumatic Cylinder in Automatic Assembly Line Subjected to Repeated Pressure Loading

open access: yesMetals, 2021
This study demonstrates the application of parametric accelerated life testing (ALT) as a procedure to identify design deficiencies and correct them in generating a reliable quantitative (RQ) specification.
Seongwoo Woo   +2 more
doaj   +1 more source

Changes on optical coherence tomography angiography and fluorescein angiography in eyes with neovascular age-related macular degeneration [PDF]

open access: yesInternational Journal of Ophthalmology, 2022
AIM: To evaluate the changes on optical coherence tomography angiography (OCTA) and fluorescein angiography (FA) and their correlation in neovascular age-related macular degeneration (nAMD) before and after intravitreal aflibercept injections (IAIs ...
So Min Ahn   +4 more
doaj   +1 more source

A Method to Construct Early-Warning and Emergency Response System for Sulfur Hexafluoride Leakage in Substations

open access: yesIEEE Access, 2020
Sulfur hexafluoride (SF6) gas leakage in populous urban areas, once occurring, can cause death from suffocation if its concentration largely exceeds 1000ppm and oxygen concentration is low than 19 vol-%.
Chunrui Liu   +3 more
doaj   +1 more source

Leakage Effect on the Transmission Properties of a Duct Loaded with a Helmholtz Resonator

open access: yesApplied Sciences, 2022
The characteristics of transmitted acoustic field have important significance to the leakage detection and the acoustic metasurface technology. When the additional leak holes are present, the conventional single neck Helmholtz resonator will naturally ...
Yang Ou, Yonghui Zhao
doaj   +1 more source

Frequency Dependent Model of Leakage Inductance for Magnetic Components [PDF]

open access: yes, 2012
Theoretical methods for the calculation of winding losses with respect to frequency have been well documented, but the variation in leakage inductance of magnetic components due to frequency has been less well addressed. In this paper Dowell’s well-known
Wilcock, Reuben   +5 more
core   +1 more source

Investigation on leakage and solidification characteristics of fluorides in molten salt reactor

open access: yesHe jishu, 2021
BackgroundThe high temperature molten salt is generally used as the heat transfer medium in molten salt reactor (MSR), and the molten salt leakage accident is a crucial issue for the safety of reactor operation.PurposeThis study aims to investigate the ...
WANG Yun   +3 more
doaj   +1 more source

A Computationally Efficient Hybrid Leakage Model for Modeling Leakage in Positive Displacement Compressors [PDF]

open access: yes, 2012
An empirical frictional correction factor to the isentropic nozzle model has been developed for application to leakage modeling in scroll, rotary and other similar compressors. This correction factor is derived by calculating the leakage mass flow with a
Groll, Eckhard A.   +3 more
core   +1 more source

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