Results 31 to 40 of about 46,783 (309)

Determinação de metais em óleos lubrificantes, provenientes de motores de ônibus urbano, utilizando a FAAS

Química Nova, 2010
This work proposed a procedure to examine ashes produced in burning lubricating oils used in public transportation, in Teresina PI. Sulphanilic acid was added to the oil samples, which were burned at 550 °C for three hours and 650 °C for two hours.
Eva Lúcia Cardoso Silveira, Ronaldo Cunha Coelho, José Machado Moita Neto, Carla Verônica Rodarte de Moura, Edmilson Miranda de Moura   +4 more
doaj   +1 more source

Control of Initiation, Rate, and Routing of Spontaneous Capillary-Driven Flow of Liquid Droplets through Microfluidic Channels on SlipChip [PDF]

, 2012
This Article describes the use of capillary pressure to initiate and control the rate of spontaneous liquid–liquid flow through microfluidic channels.
Ismagilov, Rustem F., Karymov, Mikhail A., Platt, Carol E., Pompano, Rebecca R.   +3 more
core   +3 more sources

Eco-friendly utilization of chitosan from shrimp shells for used lubricating oil cleaning

Results in Surfaces and Interfaces
A study on using chitosan as a cleaning agent for used lubricant oil has been successfully conducted. Chitosan, a derivative of chitin derived from abundant crustacean shell waste, has notable properties that make it suitable for applications in various ...
Muhammadin Hamid, Indri Dayana, Dewi Sholeha, Muhammad Fadlan Siregar, Indra Roza, Junaidi, Martha Rianna, Hadi Wijoyo   +7 more
doaj   +1 more source

Extraction and tribological investigation of top piston ring zone oil from a gasoline engine [PDF]

, 2006
With tightening emission regulations, increased expected fuel economy, and longer drain intervals impacting on lubricant formulation, greater understanding of how oil degrades in an automotive engine is becoming ever more important.
Chung, S., Lee, P.M., Lindsay-Smith, J.R., Priest, M., Stark, M.S., Taylor, R.I., Wilkinson, J.J.   +6 more
core   +1 more source

Refining and Reuse of Waste Lube Oil in SI Engines: A Novel Approach for a Sustainable Environment

Energies, 2021
The protection of the environment and pollution control are issues of paramount importance. Researchers today are engrossed in mitigating the harmful impacts of petroleum waste on the environment.
Muhammad Usman, Muhammad Kashif Jamil, Fahid Riaz, Haris Hussain, Ghulam Hussain, Muhammad Haris Shah, Muhammad Abdul Qyyum, Chaudhary Awais Salman, Moonyong Lee   +8 more
doaj   +1 more source

Optimisation of the Topping-Up Process of Lubricating Oil in Medium-Speed Marine Engines

Polish Maritime Research, 2021
In this paper, we examine the problem of optimising the process of topping up lubricating oil in medium-speed marine engines. This process is one of the methods that can be applied to improve the properties of lubricating oil.
Młynarczak Andrzej, Rudzki Krzysztof
doaj   +1 more source

Novel Tailoring of Ternary ZnS‐MXene‐TiO2 Nanocomposite Heterojunction and Its Tunable Electrochemical Properties With Enhanced Photocatalytic Degradation

Advanced Engineering Materials, EarlyView.
ZnS‐MXene‐TiO2 nanocomposite heterojunction for photocatalytic decomposition of this methylene blue dye (MB) greatly improves light absorption, charge separation, and active site area. Two‐dimensional MXene forms nanocomposites by easily combining them with 0D (quantum dots), 1D (tube and wire), 2D (plane and sheet), and 3D (particle and lamellar ...
Latiful Kabir, Dohyun Kim, Minho Song, Jae Doc Na, Young Jun Joo, Kwang Youn Cho, Karna Wijaya, Won‐Chun Oh   +7 more
wiley   +1 more source

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +2 more
wiley   +1 more source

Reclamation of Spent Automobile Engine Lubricating Oil

Fountain Journal of Natural and Applied Sciences (FUJNAS), 2013
In this study, some of the property reclamation methods for spent lubricating oil (SLO) were demonstrated. Firstly, 3.5 L of SLO was subjected to physical methods such as natural settling, sedimentation, magnetisaton and filtration to remove all forms ...
R. U. Owolabi, K. A. Alabi, O. B. Oke
doaj   +1 more source

Analysis of selected results of engine oil tests [PDF]

MATEC Web of Conferences, 2019
The study presents selected results of viscosity tests performed for different temperatures of lubricating oil with viscosity marked as 5w30. Viscosity tests of new oil and oil right after being used have been compared.
Landowski Bogdan, Baran Monika
doaj   +1 more source