Results 51 to 60 of about 594,060 (358)

Experimental and Optimization Design of Offshore Drilling Seal

open access: yesPolish Maritime Research, 2017
Three-cone bit is the key equipment in the exploration of the oil in offshore drilling and exploration, the bearing system and the seal system are the critical components for the bit.
Zhang Yi   +3 more
doaj   +1 more source

High speed, self-acting shaft seal [PDF]

open access: yes, 1975
A high-speed, self-acting circumferential type shaft seal for use in turbine engines is disclosed. One or more conventional circumferential ring seals having a central aperture are mounted in a housing.
Hady, W. F., Ludwig, L. P.
core   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Modelling of Static and Dynamic Elastomer Friction in Dry Conditions

open access: yesLubricants
Understanding the tribological behavior of elastomers in dry conditions is essential for sealing applications, as dry contact may occur even in lubricated conditions due to local dewetting.
Fabian Kaiser   +2 more
doaj   +1 more source

Seals Research at Texas A/M University [PDF]

open access: yes, 1991
The Turbomachinery Laboratory at Texas A&M has been providing experimental data and computational codes for the design seals for many years. The program began with the development of a Halon based seal test rig.
Morrison, Gerald L.
core   +1 more source

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai   +2 more
wiley   +1 more source

Des phoques et des âmes, évolution de la place des phoques dans la vision du monde des pêcheurs artisans pêcheurs islandais

open access: yesVertigO
This article is a translation of Of seals and souls: Changes in the position of seals in the world-view of Icelandic small-scale fishermen, published in 1990 in volume 3, number 2 of Maritime Anthropological Studies.
Niels Einarsson
doaj   +1 more source

Improved circumferential shaft seal [PDF]

open access: yes, 1974
Comparative tests of modified and unmodified carbon ring seals showed that addition of helical grooves to conventional segmented carbon ring seals reduced leakage significantly.
Ludwig, L. P., Strom, T. N.
core   +1 more source

Emergence of Fatal Avian Influenza in New England Harbor Seals

open access: yesmBio, 2012
From September to December 2011, 162 New England harbor seals died in an outbreak of pneumonia. Sequence analysis of postmortem samples revealed the presence of an avian H3N8 influenza A virus, similar to a virus circulating in North American waterfowl ...
S. J. Anthony   +15 more
semanticscholar   +1 more source

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira   +4 more
wiley   +1 more source

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