Results 41 to 50 of about 187,953 (335)

Sliding Friction Characteristics of MAC Greases under Vacuum Condition

open access: yesTribology Online, 2006
Even though solid lubricants or low-volatile greases are used for lubrication of mechanical equipments in space satellites, the life of grease is longer than that of solid lubricants because of the hydrodynamic effects and replenishment. New grease using
Yasuo Yoshii, Hitoshi Hattori
doaj   +1 more source

Treatment of biodiesel wastewater using ferric chloride and ferric sulfate [PDF]

open access: yes, 2017
The production of biodiesel through the transesterification method produces a large amount of wastewater that contains high level of chemical oxygen demand (COD) and oil and grease. In this study, coagulation was adopted to treat the biodiesel wastewater.
Abd Kadir, Aeslina   +7 more
core   +2 more sources

An experimental study on the key fretting variables for flexible marine risers [PDF]

open access: yes, 2018
This paper presents an experimental investigation into the effects of contact conformity, contact pressure and displacement amplitude on the gross-slip fretting behaviour grease-lubricated cylinder-on-flat contacts in the context of flexible marine riser
Harte, A.M.   +3 more
core   +3 more sources

Adaptive Twisting Metamaterials

open access: yesAdvanced Materials, EarlyView.
This work introduces torque‐controlled twisting metamaterials as a transformative platform for adaptive crashworthiness. By combining multiscale predictive modeling with experimental validation on additively manufactured gyroids, it demonstrates tunable stiffness, collapse stress, and energy absorption.
Mattia Utzeri   +6 more
wiley   +1 more source

Evaluation of Property Difference between Traction Oil and Traction Grease

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2009
In this paper, the characteristics of traction grease are evaluated. The difference in film formation ability between traction oil and traction grease is focused on, and the state of film formation and the traction coefficient of traction oil and two ...
Masashi YAMANAKA   +3 more
doaj   +1 more source

High Stability of Diketopyrrolopyrrole Polymer Transistors Under Aqueous Condition Toward Biosensing Platform

open access: yesAdvanced Materials Technologies, EarlyView.
We are reporting the first‐time investigation of DPP‐based Organic Field‐Effect Transistor (OFET) devices with high‐stability of signal response in both of ambient and aqueous conditions with PBS solution. ABSTRACT Diketopyrrolopyrrole (DPP)–based conjugated polymers show strong promise for electronic applications, including bioelectronic gas sensors ...
Chattarika Khamhanglit   +6 more
wiley   +1 more source

Teknologi pengambilan lemak dari sisa fleshing

open access: yesMajalah Kulit, Karet, dan Plastik, 2006
The aim of this research was to recover the fat from fleshing in order it could be useful for many kinds of industries such as soap, oil/grease for tanning manufactures, etc.
Sri Sutyasmi, Ignatius Sunaryo
doaj   +1 more source

On the Flow Dynamics of Polymer Greases

open access: yesLubricants, 2022
In this paper, the flow dynamics of polymer greases was investigated using micro-particle image velocimetry. Polymer greases have a different thickener structure, compared to widely used lithium-based greases, and they have the well-known ability to ...
Josep Farré-Lladós   +4 more
doaj   +1 more source

Ductility Tuning via Cluster Network Characteristics of Porous Components

open access: yesAdvanced Materials Technologies, EarlyView.
Network optimization via cluster characteristics induced by interaction of stress concentration is proposed, demonstrating increased cluster size and dispersion in non‐uniform porous components. The optimized structures exhibit, for the first time, that enhanced ductility and damage progression is controllable through zigzag cluster network designed by
Ryota Toyoba   +4 more
wiley   +1 more source

Sealing of Dry Particles with Grease-Filled Non-Contacting Sealing Systems

open access: yesLubricants, 2017
There is no wear and no friction with non-contacting sealing systems. Because of this, there is in principle no lifetime-limit. However, this does not apply for grease-filled labyrinth seals.
Florian Bosch, Werner Haas
doaj   +1 more source

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