Results 51 to 60 of about 302,026 (291)

Effects of Carbon Nanoparticles on Triboelectro‐Induced Surface Defects

open access: yesAdvanced Engineering Materials, EarlyView.
Carbon nanoparticles added to grease modify the electrocontact behavior. The synergy of particle concentration and electric current dominates the surface damage of metals in contact. Electrical surface damage caused by current leakage is a critical challenge in high‐performance applications such as electric vehicle (EV) drivetrains and wind turbine ...
Mohsen Tajedini   +6 more
wiley   +1 more source

Polymers additive for improving the flow properties of lubricating oil

open access: yesEgyptian Journal of Petroleum, 2018
An investigation was conducted for the improvement of the physical properties of Lubricating oil. The copolymer used is ethylene propylene diene monomer (EPDM).
S.I. Shara, E.A. Eissa, J.S. Basta
doaj   +1 more source

Characterization of Nanocomposite Casein-Chitosan with Addition TiO2 Toward Physical Stability, Emulsifying Activity Index, and Microstructure

open access: yesJurnal Ilmu dan Teknologi Hasil Ternak, 2021
The purpose of this research was to determine the characteristic of physical properties and emulsifying activity index with different concentrations (0%, 1%, 3%, and 5% (v/v)) on the viscosity, solubility, turbidity, emulsifying activity index, and ...
Imam Thohari   +2 more
doaj   +1 more source

Radiation Copolymer Addition and Viscosity Index Improvement of Recovery Synthetic Lubricant Oil [PDF]

open access: yes, 2009
In this study, irradiation copolymer of natural rubber latexmethyl methacrylate ( NRL-co-MMA) was added into recovery synthetic and mineral lubricant oil as samples at concentration of 0.25%, 0.70%, 1%, 3%, 5%, 7%, 10%.
Rahmawati, R. (Rahmawati)   +1 more
core  

Interactions between Molten High‐Silicon Electrical Steels and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert   +7 more
wiley   +1 more source

Analysis of complex viscosity and shear thinning behavior in poly (lactic acid)/poly (ethylene oxide)/carbon nanotubes biosensor based on Carreau–Yasuda model

open access: yesResults in Physics, 2019
The complex viscosity of poly (lactic acid) (PLA)/poly (ethylene oxide) (PEO) blends and PLA/PEO/carbon nanotubes (CNT) biosensor as a function of frequency is measured and analyzed by Carreau–Yasuda model.
Yasser Zare   +2 more
doaj   +1 more source

Accelerating universe emergent from the landscape [PDF]

open access: yes, 2007
We propose that the existence of the string landscape suggests the universe can be in a quantum glass state, where an extremely large viscosity is generated, and long distance dynamics slows down.
Balasubramanian V   +17 more
core   +3 more sources

Manufacturing Continuous Fiber‐Reinforced Printing Filaments: Development of a Post‐Consolidation Unit

open access: yesAdvanced Engineering Materials, EarlyView.
A novel, temperature‐controlled post‐consolidation unit is developed to test its potential to improve the melt impregnation process used to manufacture continuous fiber‐reinforced filaments for additive manufacturing of high‐performance thermoplastics.
Daniel Beermann   +2 more
wiley   +1 more source

The Development to Control Simultaneously Viscosity and Separation Temperature of a Two Phase Lubricant for Practical Use

open access: yesTribology Online, 2016
Fuel economy is a major challenge for the automotive industry. A key way to improve lubricant fuel efficiency is by using polymers as viscosity index improvers to maximise the viscosity index of the lubricants.
Kumiko Kamata   +4 more
doaj   +1 more source

Gravitational Stability and Bulk Cosmology

open access: yes, 2007
We present a discussion of the effects induced by bulk viscosity either on the very early Universe stability and on the dynamics associated to the extreme gravitational collapse of a gas cloud.
Carlo Luciano Bianco   +3 more
core   +1 more source

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