Results 81 to 90 of about 53,471 (296)

Development of a Chemical-Kinetic Mechanism of a Four-Component Surrogate Fuel for RP‑3 Kerosene

ACS Omega, 2021
Binbin Yu, Xinsheng Jiang, Donghai He, Chunhui Wang, Zituo Wang, Yunxiong Cai, Jin Yu, Jia-jia Yu   +7 more
doaj   +1 more source

Analytical study of pressures in the layer of lubricant material separating the contact of teeth of a heavy-loaded gear mechanism [PDF]

Научно-технический вестник Брянского государственного университета
The increasing complexity of technological processes affects the operating modes of machines and equipment and, as a consequence, their service life.
Kharchenko M.V.
doaj   +1 more source

Elephant‐Skin‐Inspired Porous Cementitious Tiles with Programmable Crack Networks for Passive Cooling

Advanced Materials, EarlyView.
Elephant‐skin‐inspired crack networks are programmed in porous diatomaceous earth (DE)‐cement composites using substrate‐guided, stress‐concentration induced fracture. The resulting crack lattices act as capillary conduits that redistribute water, while the porous matrix stores moisture.
Qingya Huang, Kun‐Hao Yu, Ji Yoon Bae, Yunchan Lee, Dorit Aviv, Shu Yang   +5 more
wiley   +1 more source

Validation of the Optimal Points of Tribological Systems at Different Temperatures Determined by the DOE Method Using Lubricating Oil Doped with Nano-ZrO₂ Particles

Engineering Proceedings
In this study, the design of experiments (DOE) method is used to find the optimum values of the tribological system in a 40–120 °C range with 0.1–1 wt% zirconia nanoadditives in a base oil. Significant factors were identified.
Ádám I. Szabó, Kevin Szabó
doaj   +1 more source

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

Tribology 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, Yasushi Kawamura, Ryuji Maruyama, Eiji Nagatomi, Hiroyuki Tazaki   +4 more
doaj   +1 more source

Droplet Electricity Generators With Maximized Energy Collection Zone Enabled by Aloe‐Inspired Midrib and Cuticle

Advanced Materials, EarlyView.
An Aloe‐pinspired droplet electricity generator (A‐DEG) overcomes the limited energy collection zone of conventional DEGs by guiding impact droplets through a channeling midrib and artificial cuticle. The channeling midrib induces uni‐directional droplet spreading, while the artificial cuticle on the midrib further reinforces this behavior through its ...
Gibeom Lee, Eunbyeol Kim, Kyongtae Choi, Minjun Song, Sunmin Jang, Dongwhi Choi, Donghyun Seo, Min‐Gyu Lee, Younghoon Lee   +8 more
wiley   +1 more source

Inlet protein aggregation: a new mechanism for lubricating film formation with model synovial fluids. [PDF]

, 2011
This paper reports a fundamental study of lubricant film formation with model synovial fluid components (proteins) and bovine serum (BS). The objective was to investigate the role of proteins in the lubrication process.
Hart, A, R Underwood, C W Myant, Underwood, R, A Hart, P M Cann, Cann, PM, Fan, J, Myant, CW, J Fan   +9 more
core   +1 more source

Tribological Investigation of Base Oil Supplemented with Zirconia Nanoparticles at Various Operating Temperatures

Engineering Proceedings
This study examines oil samples with zirconium dioxide (ZrO2) nanoparticles in Group III base oil at different temperatures, revealing the effects of temperature and concentration on the tribological system.
Ádám István Szabó, Márk Marsicki
doaj   +1 more source

Evaluation of Color Stability of a Composite Resin Using Different Instrument Lubricants After One Month of Water Storage [PDF]

Journal of Kerman University of Medical Sciences
Background: Clinicians use several lubricants to reduce composite sticking to instruments and facilitate composite modeling. This study evaluated the effect of instrument lubricants on the color stability of a resin composite after one month of water ...
Nafiseh Elmamooz, Farnaz Abdollahi, Ali Eskandarizadeh, Mehrnaz Karimi Afshar, Mehran Amirinejad   +4 more
doaj   +1 more source

Influence of Carbon Nanoparticles on Electrically Induced Wear of Grease‐Lubricated Steels

Advanced Materials Interfaces, EarlyView.
When an electric current enters a pair of rubbing surfaces, enormous damage takes place. In this research, how such damage occurs in the presence of protective grease and the mitigation with added carbon nanoparticles, were investigated. It was discovered that those particles regulate transport and interfacial electrical stability of the grease ...
Mohammad Humaun Kabir, Darrius Dias, Jacob Bons, MD Wasek Foysal, Evan Johnson, Joe Kosmoski, Hong Liang   +6 more
wiley   +1 more source