Results 31 to 40 of about 165,058 (340)

Tribological Investigation of the Effect of Nanosized Transition Metal Oxides on a Base Oil Containing Overbased Calcium Sulfonate

Lubricants, 2023
In this study, copper(II) oxide, titanium dioxide and yttrium(III) oxide nanoparticles were added to Group III-type base oil formulated with overbased calcium sulfonate. The nanosized oxides were treated with ethyl oleate surface modification.
Álmos Dávid Tóth, Hajnalka Hargitai, Ádám István Szabó   +2 more
doaj   +1 more source

Structure–Performance Relationship Study of PMA Viscosity Index Improver in New Energy Vehicle Transmission Fluid

Lubricants
This study systematically investigates the structure–performance relationship of PMA (PolyMethacrylate) viscosity index improvers in new energy vehicle (NEV) transmission fluids. We developed an integrated analytical framework combining spectroscopic and
Jinglin Yin, Xiao Shi, Ling Lei, Jingsi Cao, Qianhui Zhao, Haipeng Zhao   +5 more
doaj   +1 more source

Change in Surface Tension and Pin Wear Characteristics of Thin-Film Disks by Heat Treatment and UV Irradiation

Tribology Online, 2010
The lubricant on thin-film disks is a key material for disk durability. Bonded lubricant layer remains on disk surfaces after solvent rinsing which removes mobile lubricant.
Youichi Kawakubo, Masaki Kamijou, Toshihito Hiraide, Osamu Kitamura   +3 more
doaj   +1 more source

Surface Modification of Silica Nanoparticles with Ethyl Oleate for the Purpose of Stabilizing Nanolubricants Used for Tribological Tests

Ceramics, 2023
Long-term sustainability and decreasing amount of fossil oil reserves require a partial or complete transformation of traditional lubricating oils. The use of silica nanoparticles as a lubricant additive has a huge tribological potential, which has ...
Álmos Dávid Tóth, Nóra Mike-Kaszás, Gábor Bartus, Hajnalka Hargitai, Ádám István Szabó   +4 more
doaj   +1 more source

Monitoring of lubricant film failure in a ball bearing using ultrasound [PDF]

, 2006
A lubricant-film monitoring system for a conventional deep groove ball bearing (type 6016, shaft diameter 80 mm, ball diameter 12.7 mm) is described. A high-firequency (50 MHz) ultrasonic transducer is mounted on the static outer raceway of the bearing ...
Anderson, Astridge, Bruce W. Drinkwater, Cameron, Drinkwater, Dwyer-Joyce, Dyson, Glavatskih, Hamrock, Hamrock, Harris, Hill, Jacobson, Jie Zhang, Krautkramer, Miettinen, Miettinen, Pialucha, Rob S. Dwyer-Joyce, Stachowiak, Zhang, Zhang   +21 more
core   +1 more source

Bearings use dry self-lubricating cage materials [PDF]

, 1968
Rolling element bearings in spacecraft mechanical systems use solid lubricant composites of polytetrafluoroethylene in the bearing cage which functions as the lubricant reservoir. The cage spaces the rolling elements equally and provides the lubricant at
Anderson, W. J., Glenn, D. C., Scribbe, H. W.   +2 more
core   +1 more source

Establishment of a humanized patient‐derived xenograft mouse model of high‐grade serous ovarian cancer for preclinical evaluation of combination immunotherapy

Molecular Oncology, EarlyView.
We have established a humanized orthotopic patient‐derived xenograft (Hu‐oPDX) mouse model of high‐grade serous ovarian cancer (HGSOC) that recapitulates human tumor–immune interactions. Using combined anti‐PD‐L1/anti‐CD73 immunotherapy, we demonstrate the model's improved biological relevance and enhanced translational value for preclinical ...
Luka Tandaric, Line Bjørge, Martine Rott Lode, Cecilie Fredvik Torkildsen, Pia Aehnlich, Rammah Elnour, Daniela Elena Costea, Lars Andreas Akslen, Liv Cecilie Vestrheim Thomsen, Emmet McCormack, Katrin Kleinmanns   +10 more
wiley   +1 more source

Study on the Heat Pipe Oxidation Deposits of Ethylene⁃Propylene Copolymer

Shiyou huagong gaodeng xuexiao xuebao
With the continuous rise of energy conservation and environmental protection standards, optimizing the high temperature cleaning performance of lubricating oil and reducing engine piston deposits have become a top priority in the field of lubricating oil.
Hongjun E, AHEBOTA·Bahet, Si WU, Jiajia JIN   +3 more
doaj   +1 more source

Static friction on the fly: velocity depinning transitions of lubricants in motion

, 2007
The dragging velocity of a model solid lubricant confined between sliding periodic substrates exhibits a phase transition between two regimes, respectively with quantized and with continuous lubricant center-of-mass velocity.
A. Vanossi, E. Tosatti, F. Caruso, G. E. Santoro, N. Manini, O. M. Braun   +5 more
core   +1 more source

Sustainable bioplastics manufacturing from renewable sources

FEBS Open Bio, EarlyView.
Bioplastics are manufactured by using polymers from different bio‐based sources. These novel materials not only offer biodegradability but also possess various functional properties that make them suitable for diverse applications. Recent developments in the preparation of bioplastics are reported, highlighting the distinct properties of each type of ...
C. Valeria L. Giosafatto, Marika Avitabile, Michela Famiglietti, Talayeh Kordjazi, Marzieh Moosavi‐Nasab, Odile F. Restaino, Loredana Mariniello   +6 more
wiley   +1 more source