Results 1 to 10 of about 355,339 (195)
Tribology Online, 2022 The herringbone-grooved oil-film-lubricated mechanical face seals were experimentally studied on aspects of the leakage and thermal features. The outer-diameter pressured test assembly was utilized to measure the leakage and the stator temperature of the
Yongfan Li +4 more
doaj +1 more source
Machines, 2023 The reliability and stability of the seal at the fuel-supply end of a rocket-engine turbopump are important factors in determining safety. Conventional single-stage floating rings used for the isolation-sealing of cryogenic media are highly susceptible ...
Zifeng Song +5 more
doaj +1 more source
Carbon Footprint vs. Handprint of Dynamic Sealing Systems
Tribology Online, 2023 In the future, sustainability and CO2 neutrality requirements will come from both customers and regulatory compliance. Each company should provide the greatest possible transparency regarding its sustainability efforts.
Eberhard Bock, Ruth Bieringer
doaj +1 more source
Remarks on Modeling the Oil Film Generation of Rod Seals
Lubricants, 2021 The oil film generation of a U-cup rod seal and the oil film thickness on the rod after outstroke were analyzed analytically, numerically, and experimentally. The analyzed sealing system consists of an unmodified, commercially available U-cup, a polished
Oliver Feuchtmüller +3 more
doaj +1 more source
SEAL: Sealed-Bid Auction Without Auctioneers [PDF]
IEEE Transactions on Information Forensics and Security, 2020 We propose the first auctioneer-free sealed-bid auction protocol with a linear computation and communication complexity O(c), c being the bit length of the bid price. Our protocol, called Self-Enforcing Auction Lot (SEAL), operates in a decentralized setting, where bidders jointly compute the maximum bid while preserving the privacy of losing bids.
Samiran Bag +3 more
openaire +3 more sources
Friction, 2023 MXene possesses great potential in enriching the functionalities of hydrogels due to its unique metallic conductivity, high aspect ratio, near-infrared light (NIR light) responsiveness, and wide tunability, however, the poor compatibility of MXene with ...
Pengxi Wu +5 more
doaj +1 more source
PREVENTION AND TREATMENT OF CARIES AND ITS COMPLICATIONS IN TEMPORARY TEETH IN A DENTAL CLINIC
Український стоматологічний альманах, 2023 Damage to the hard tissues of the teeth is most common among children. This applies to both temporary and permanent bite. Untimely prevention and treatment of caries leads to the progression of the process in the tissues of the tooth, the occurrence of ...
L.F. Kaskova +3 more
doaj +1 more source
Self-aligned 0-level sealing of MEMS devices by a two layer thin film reflow process [PDF]
, 2003 Many micro electromechanical systems (MEMS) require a vacuum or controlled atmosphere encapsulation in order to ensure either a good performance or an acceptable lifetime of operation. Two approaches for wafer-scale zero-level packaging exist.
Gunn, R. +3 more
core +5 more sources
Energies, 2022 Proton-exchange membrane fuel cells (PEMFCs) are regarded as promising alternatives to internal combustion engines (ICEs) to reduce pollution. Recent research on PEMFCs focuses on achieving higher power densities, reducing the refueling time, mitigating ...
Hossein Pourrahmani +6 more
doaj +1 more source
Sealing of micromachined cavities using chemical vapor deposition methods: characterization and optimization [PDF]
, 1999 This paper presents results of a systematic investigation to characterize the sealing of micromachined cavities using chemical vapor deposition (CVD) methods.
Liu, Chang, Tai, Yu-Chong
core +1 more source