Results 21 to 30 of about 532 (208)
International Journal of Naval Architecture and Ocean Engineering, 2014 In an effort to cope with recent high oil price and global warming, developments of air lubricated ships have been pursued to reduce greenhouse gas emissions and to save fuel costs by reducing the frictional resistance.
Jang Jinho +4 more
doaj +3 more sources
Leaping shampoo glides on a lubricating air layer [PDF]
Physical Review E, 2013 When a stream of shampoo is fed onto a pool in one's hand, a jet can leap sideways or rebound from the liquid surface in an intriguing phenomenon known as the Kaye effect. Earlier studies have debated whether non-Newtonian effects are the underlying cause of this phenomenon, making the jet glide on top of a shear-thinning liquid layer, or whether an ...
Lee, S. +4 more
openaire +3 more sources
Influence of CFD Modelling Parameters on Air Injection Behaviour in Ship Air Lubrication Systems
Journal of Marine Science and EngineeringIn response to the International Maritime Organization’s strengthened regulations on carbon emissions, the introduction of novel eco-friendly technologies for ship operators has become necessary.
Gyeongseo Min +10 more
doaj +1 more source
Cryogenic Minimal Quantity Lubrication Assisted Cutting Process for Polyimide Materials
Shanghai Jiaotong Daxue xuebao, 2022 The cutting performance of the porous polyimide material assisted by cold air trace lubrication was investigated, and the influence law of cutting process parameters on the cutting effect (cutting force, surface finish quality, and oil content) of the ...
CAO Zheng, LEI Xuelin, ZHANG Hang, CAI Xiaojiang
doaj +1 more source
Transient formation theory of air-microbubble oil and testing its oil-spraying mechanism
AIP Advances, 2023 In oil–air lubrication systems, large numbers of air microbubbles are often included in the oil phase. However, the principles of microbubble formation in oil–air annular flow and their influencing factors remain uncertain, and previous conclusions ...
Wenliang Zhang +2 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Despite benefits to storage stability and handleability of aluminum scrap, octadecyl phosphonic acid (ODPA) SAMs reduce the tensile strength of wires produced using friction‐induced recycling. Etching and methyl diphosphonic acid (MDPA) coatings, however, have little effect.
Timothy D. Goller +3 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Particle morphology controls the balance between printability and electrical connectivity in low‐temperature AgCu/Ag metallization pastes. Flake‐shaped AgCu particles form extended low‐resistance contacts, whereas spherical particles favor processability at high metal loading. Fine Ag particles further tune void filling and conductive‐network formation
O. Mhirsi +3 more
wiley +1 more source
Lubricants, 2023 Aiming to solve the problem of oil-air lubrication failure caused by the high working temperature of high-speed rolling bearings, this study proposes a method, based on the theory of gas-solid two-phase flow and bearing tribology, of predicting the ...
Xiqiang Ma +5 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein +4 more
wiley +1 more source
Machines, 2023 For the purpose of contributing to sustainable machining, the aim was to investigate the turning of martensitic stainless steel X20Cr13 under alternative cooling and lubrication techniques.
Graciela Šterpin Valić +3 more
doaj +1 more source