Results 91 to 100 of about 27,562 (297)

Dynamics of solid dispersions in oil during the lubrication of point of contacts. Part 2: Molybdenum disulfide [PDF]

open access: yes
A Hertzian contact consisting of a steel ball in contact with a glass disk is lubricated with MoS2 dispersions and observed by optical microscopy at various slide/roll conditions. In general the behavior of MoS2 and graphite are similar.
Cusano, C., Sliney, H. E.
core   +1 more source

Synthesis of trimethylolpropane trioleate by using stannous oxalate catalyst

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract This study was conducted to synthesize trimethylolpropane trioleate (TMPTO) using a stannous oxalate catalyst and investigate the dependence of the esterification rate on reaction variables. The highest esterification rate of approximately 99% was achieved at a 2.75:1 oleic acid/trimethylolpropane, 1.5% catalyst amount, 180°C reaction ...
Oguzhan Ilgen, Sumeyye Bilgic
wiley   +1 more source

Nanodispersed magnetic oil: relationship between liquid phase composition and tribological characteristics

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов
The use of nanodispersed magnetic oil for lubricating plain bearings of modern high-tech equipment allows to increase its durability and performance. The paper assesses the effect of the dispersion medium, nanodispersed magnetic phase, antiwear additives
A.N. Bolotov   +2 more
doaj   +1 more source

Emerging research directions in nanoparticle‐based foam control for bioprocessing: a bibliometric approach

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract Overfoaming remains a critical challenge in industrial bioprocesses, compromising mass transfer, operational stability, and downstream efficiency in bioreactors and wastewater treatment systems. This study provides a bibliometric and scientometric assessment of nanoparticle‐enabled foam control to map technological trends and identify research
Antonio Átila Menezes Ferreira   +6 more
wiley   +1 more source

The Possibilities of Using Ecological Liquids in Tribological Gliding Systems with a Selected Surface Created by the Radial Welding Technology

open access: yesActa Technologica Agriculturae, 2019
Presented paper deals with the issue of lubricating tribological systems formed by a double pair operating under mixed conditions of mixed friction before and after experimental tests, which were conducted in accordance with the selected methodology ...
Tóth František   +4 more
doaj   +1 more source

Bearings use dry self-lubricating cage materials [PDF]

open access: yes, 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.   +2 more
core   +1 more source

A Methodology to Integrate Closed‐Cycle Heat Pumps into Batch Distillation Columns

open access: yesChemie Ingenieur Technik, EarlyView.
Batch distillation often cannot use vapor recompression due to contamination risks in food and pharma. This study proposes a design for integrating closed‐loop heat pumps using natural fluids. Results show significant energy savings, offering a sustainable alternative to traditional setups.
Philipp Dorn   +5 more
wiley   +1 more source

A Comparison Study On Engine Oil Properties For Bi-Fuel Motorcycle [PDF]

open access: yes, 2002
All mechanical equipment must be lubricated in order to reduce friction and wear between the touching surfaces. For four-stroke motorcycle engine, the function of the engine oil play critical roles since the oil does not burn along with fuel in ...
Mohd. Adnan, Yahya   +2 more
core  

Box–Behnken optimization and ANN‐ANFIS integrated modelling for transesterification using thermally activated basic oxygen furnace slag catalyst

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Global energy demand and environmental concerns have intensified the search for renewable and sustainable energy sources. This study thus, focuses on optimizing the transesterification process of waste cooking oil (WCO) using thermally activated basic oxygen furnace slag catalyst calcined at 850°C (BOF 850). The optimization and modelling were
Johra S. Ali, Hillary L. Rutto
wiley   +1 more source

EFFECT OF FOAMING ON THE ANTIWEAR PROPERTIES OF LUBRICATING OILS [PDF]

open access: yes, 2012
Sklonost pjenjenju mazivih ulja predstavlja ozbiljan problem u sustavima kao što su zupčaničke transmisije s velikim brzinama, pumpanje kod visokih volumena i kod podmazivanja prskanjem.
Anđelko Lepušić   +1 more
core   +1 more source

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