Results 31 to 40 of about 22,862 (300)

Impact of Purge Injection on Rim Seal Performance

open access: yesApplied Sciences
One of the most critical challenges in gas turbine design is preventing the ingestion of hot mainstream gases into the disk space between the stator and rotor disks.
Matteo Caciolli   +4 more
doaj   +1 more source

Unsteady Numerical Investigation on the Sealing Effectiveness and Flow Field in Different Rim Seal Geometries [PDF]

open access: yes, 2022
A rim seal is often used to prevent the ingress of high-temperature gas into the turbine disk cavity and protect the turbine disk from damage. Based on the overlapping rim seal (Seal-A), this paper proposes two more composite sealing structures (Seal-B ...
Jingzhou Zhang   +3 more
core   +1 more source

Influence of high pressure pulsating excitation on pipe joint sealing based on multiscale contact analyses

open access: yesAIP Advances, 2022
Most of the leakage faults in hydraulic pipeline systems occur in the pipe joint. The research on the high-pressure sealing and reliability of the pipe joint is very important in the application of civil aircraft parts.
Jie Tang   +3 more
doaj   +1 more source

Dynamic Sealing Using Magnetorheological Fluids [PDF]

open access: yes, 2018
Micropumps are microfluidic components that are widely used in applications such as chemical analysis, biological sensing, and microrobots. However, one obstacle in developing micropumps is the extremely low efficiency relative to their macroscale ...
Jose R. Alvarado   +7 more
core   +1 more source

Crack Sealing and Filling: Best Practices [PDF]

open access: yes, 2015
This study investigated the current state of practice for crack sealing/filling. In addition, the INDOT crack sealing/filling practice was experimentally evaluated for the effectiveness of crack sealing/filling, the effectiveness of routing, the ...
Hastak, Makarand   +2 more
core   +5 more sources

Investigation on the Effect of a Chromium-Free Sealing Treatment for the Corrosion Resistance of AA2198-T851 after Tartaric Sulphuric Anodizing (TSA)

open access: yesCorrosion and Materials Degradation, 2023
The AA 2198-T851 is a third-generation Al-Li alloy developed for use in the aircraft industry. Al-Li alloys are susceptible to localized corrosion due to their complex microstructure resulting from the used thermomechanical treatment. In order to prevent
Fernanda Martins Queiroz   +4 more
doaj   +1 more source

Performance evaluation of shield tail brushes based on compression and grease escape tests

open access: yesYantu gongcheng xuebao, 2023
The failures of shield tail sealing have occurred from time to time, which may result in water and sand-gushing accidents in severe cases. This phenomenon has attracted great attention from the engineering and academic circles.
ZHU Weibin 1, LIU Chang 2, ZHONG Xiaochun 2, YOU Zhi 2, ZHU Nengwen 3
doaj   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

Cost/Benefit Analysis of the Effectiveness of Crack Sealing Techniques [PDF]

open access: yes, 2019
Crack sealing is an important preventive treatment in the pavement preservation program. To achieve a cost-effective crack seal, it is important to select a proper crack sealing method.
Munch, Jared   +2 more
core  

Failure Analysis of Novel BOSS Structures for Type IV Hydrogen Storage Vessels

open access: yesEnergies, 2023
This study focuses on the critical connection area between type IV hydrogen storage vessels and external valves, which is commonly referred to as the BOSS structure. The novel BOSS structures were proposed to further ensure the safety of pressure vessels.
Jiqi Zhu   +4 more
doaj   +1 more source

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