Results 71 to 80 of about 223,185 (314)
Bubble Drag Reduction Requires Large Bubbles [PDF]
Physical Review Letters, 2016 In the maritime industry, the injection of air bubbles into the turbulent boundary layer under the ship hull is seen as one of the most promising techniques to reduce the overall fuel consumption. However, the exact mechanism behind bubble drag reduction is unknown.
Verschoof, R. +3 more
openaire +5 more sources
Visualization of toner ink adsorption at bubble surfaces [PDF]
, 2006 Flotation deinking involves interactions between inks particles and bubbles surfaces. These interactions are very difficult to observe directly or to quantify in bench-scale experiments or mill operations, making it difficult to evaluate effects of ...
Emerson, Zachery +3 more
core
Multiple changes in persistence vs. explosive behaviour: the Dotcom bubble [PDF]
, 2012 Based on a method developed by Leybourne, Kim and Taylor (2007) for detecting multiple changes in persistence, we test for changes in persistence in the dividend-price ratio of the NASDAQ stocks.
Leone, V, de Medeiros, OR
core +1 more source
Karl Popper and the Mechanisms of Hydrogen Embrittlement
Advanced Engineering Materials, EarlyView.Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley +1 more source
Bubble-Pair Propelled Colloidal Kayaker
, 2018 We report a hollow dumbbell-shaped manganese dioxide (MnO2) colloidal kayaker capable of converting a pair of breathing oxygen bubbles into self-propelled movement.
Changyong Gao (3394943) +4 more
core +4 more sources
Numerical simulation of the attachment process of particles and bubbles in a turbulent environment
Meitan xuebaoThe study of the attachment process between particles and bubbles in a turbulent environment is essential for understanding the microscopic process of flotation.
Zhijun ZHANG, Xubei HUANG
doaj +1 more source
Applied Sciences, 2020 Through the introduction of multifrequency ultrasound technology, remarkable results have been achieved in tissue ablation and other aspects.
Hu Dong, Xiao Zou, Shengyou Qian
doaj +1 more source
Measurements of bubble size distributions with an optical technique based on depth from focus [PDF]
, 1995 An optical sensor for bubble size measurements is presented. It is based on the combination of light blocking visualization and depth from focus techniques and allows for the measurement of single bubbles.
Jähne, Bernd, Geißler, Peter
core +1 more source
Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales
Advanced Engineering Materials, EarlyView.Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik +7 more
wiley +1 more source
Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying
Advanced Engineering Materials, EarlyView.An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara +8 more
wiley +1 more source