Results 31 to 40 of about 173,910 (337)

Sealing Performance of Bionic Striped Mud Pump Piston

open access: yesAdvances in Materials Science and Engineering, 2019
The mud pump piston is a key part for providing mud circulation, but its sealing performance often fails under complex working conditions, which shorten its service life.
Qian Cong   +3 more
doaj   +1 more source

Design, fabrication, and testing of micromachined silicone rubbermembrane valves [PDF]

open access: yes, 1999
Technologies for fabricating silicone rubber membranes and integrating them with other processes on silicon wafers have been developed. Silicone rubber has been found to have exceptional mechanical properties including low modulus, high elongation, and ...
Grosjean, Charles   +2 more
core   +1 more source

An Assessment Method of Sealing Performance and Stress Intensity Factors at Crack Tip of Subsea Connector Metal Sealing Rings

open access: yesEnergies, 2022
Subsea connectors are of a critical part for the sealing of subsea production systems. The working environment makes cracks initiate easily on subsea connector sealing rings.
Yingying Wang   +4 more
doaj   +1 more source

Performance analysis of compliant cylindrical intershaft seal [PDF]

open access: yesScience Progress, 2020
To improve the intershaft seal performance of the dual-rotor turbofan engine and extend the life of the intershaft seal, a compliant cylindrical aerodynamic intershaft seal structure is proposed, which avoids the problem of leakage increase after tooth wear of intershaft labyrinth seal.
Guoqiang Hou   +3 more
openaire   +2 more sources

Performance of Worn Labyrinth Seals [PDF]

open access: yesVolume 1: Turbomachinery, 1994
The major sealing device between rotating and static aeroengine parts is still of labyrinth type. Nowadays the fins and the stator may be coated and the running conditions very often cause heavy rubs which leads to severe surface imperfections. This paper investigates the influence of rounded fins and worn coatings on the discharge ...
H. Zimmerman, A. Kammerer, K. H. Wolff
openaire   +1 more source

A Review of Sealing Systems for Proton Exchange Membrane Fuel Cells

open access: yesWorld Electric Vehicle Journal
The sealing technology of proton exchange membrane fuel cells (PEMFCs) is a critical factor in ensuring their performance, impacting driving safety and range efficiency.
Yi Wei   +5 more
doaj   +1 more source

Study on a New Static Sealing Method and Sealing Performance Evaluation Model for PEMFC

open access: yesWorld Electric Vehicle Journal, 2021
The long-term stability and durability of seals are critical for various instruments and types of equipment. For static sealing, an important sealing state, there are currently two representative sealing methods, namely, pre-compressing static sealing ...
Xiaoyu Huang   +4 more
doaj   +1 more source

A novel approach for quality control system using sensor fusion of infrared and visual image processing for laser sealing of food containers [PDF]

open access: yes, 2004
This paper presents a new mechatronic approach of using infrared thermography combined with image processing for the quality control of a laser sealing process for food containers. The suggested approach uses an on-line infrared system to assess the heat
Al-Habaibeh, A   +5 more
core   +1 more source

Thrombolytic proteins profiling: High‐throughput activity, selectivity, and resistance assays

open access: yesFEBS Open Bio, EarlyView.
We present optimized biochemical protocols for evaluating thrombolytic proteins, enabling rapid and robust screening of enzymatic activity, inhibition resistance, and fibrin affinity, stimulation, and selectivity. The outcome translates to key clinical indicators such as biological half‐life and bleeding risk. These assays streamline the development of
Martin Toul   +3 more
wiley   +1 more source

Coupling deformation characteristics and sealing performance of coal-sealing material in borehole sealing section

open access: yesMeitan kexue jishu
The influence of mechanical properties of the sealing material and grouting parameters on the coupling deformation of coal-sealing material in the sealing section of gas extraction borehole is still unclear, which is the main factor restricting the ...
Gang XU   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy