Results 71 to 80 of about 24,680 (295)

Observer-based Fault Detection and Diagnosis for Mechanical Transmission Systems with Sensorless Variable Speed Drives [PDF]

open access: yes, 2015
Observer based approaches are commonly embedded in sensorless variable speed drives for the purpose of speed control. It estimates system variables to produce errors or residual signals in conjunction with corresponding measurements. The residual signals
Abusaad, Samieh   +3 more
core  

Evaporation‐Driven Solutal Marangoni Control of Rayleigh–Taylor Instability in Inverted Films

open access: yesAdvanced Science, EarlyView.
Inverted liquid films, like paint on a ceiling, are inherently unstable under gravity. This work shows that selective evaporation in volatile binary mixtures generates solutal Marangoni stresses that either suppress or amplify the Rayleigh Taylor instability.
Minwoo Choi, Hyejoon Jun, Hyoungsoo Kim
wiley   +1 more source

Optimization of tribological behavior of Pongamia oil blends as an engine lubricant additive

open access: yesGreen Processing and Synthesis, 2015
This investigation reports on the effect of Pongamia oil doped with lube oil on tribological characteristics of Al-7% Si alloy using the Taguchi method.
Singh Yashvir   +2 more
doaj   +1 more source

Recycling of used engine oil by different solvent

open access: yesEgyptian Journal of Petroleum, 2018
The refining of lubricating oils from waste lubricating oil was examined utilizing a novel blend of solvent extraction and activated alumina adsorbent. The activity of these solvent extraction blends {toluene, butanol and methanol (A)}, {toluene, butanol
Doaa I. Osman   +2 more
doaj   +1 more source

Dendritic Nano‐Based Slippery Coating by Synergistic Mechanical and Electrostatic Interactions with Persistent and Exceptional Combats Thrombosis

open access: yesAdvanced Science, EarlyView.
A novel dendritic nano‐based slippery coating (DNSC), fabricated by encapsulating carboxyl silicone oil within amino dendritic silica nanoparticles and co‐embedding them in an epoxy resin matrix. The dendritic architecture enhances nanoparticle dispersion in the matrix and establishes mechanical interlock.
Shu Zhang   +12 more
wiley   +1 more source

Fuzzy Inference System Development for Turbogenerator Failure Diagnosis on Floating Production Offloading and Storage Platform

open access: yesEnergies
This paper introduces a novel approach for diagnosing failures within a turbogenerator mineral lube oil system, employing a fuzzy inference system (FIS) model. The study leverages real operational data collected from supervisory monitoring sensors across
Patricio F. Castro   +4 more
doaj   +1 more source

Americans’ Aging Autos [PDF]

open access: yes, 2014
[Excerpt] From 2008 to 2012, the average age of U.S. households’ vehicles increased as owners held on to their cars, trucks, and vans longer. The trend in aging autos coincides with declines in average household income in 2008; however, subsequent ...
Pfirrmann-Powell, Ryan
core   +1 more source

Multi‐Force‐Driven Self‐Recoverable SWIR Mechanoluminescence for Underwater Communication

open access: yesAdvanced Science, EarlyView.
This study represents the first demonstration of self‐recoverable mechanoluminescent (ML) within a single material across diverse mechanical modes, enabled by the synergistic coupling of piezoelectric and triboelectric effects. Through a combinatorial doping approach, the MgNb2O6 crystal exhibits breakthrough short‐wavelength infrared ML performance ...
Jie Sun   +13 more
wiley   +1 more source

Pra Desain Pabrik Lube Base Oil dari Oli Bekas dengan Proses Ekstraksi Solvent

open access: yesJurnal Teknik ITS, 2017
Minyak pelumas dasar  merupakan bahan baku dari pembuatan minyak pelumas atau oli yang digunakan untuk berbagai jenis permesinan baik berat maupun ringan. Sebagian besar pelumas terdiri dari lube base oil 80% dan 20% merupakan aditive.
Amirut Tahfifah   +2 more
doaj  

Acetone-Gasoline Blend as an Alternative Fuel in SI Engines: A Novel Comparison of Performance, Emission, and Lube Oil Degradation. [PDF]

open access: yesACS Omega, 2023
Usman M   +8 more
europepmc   +1 more source

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