Results 81 to 90 of about 451,587 (365)
Rational speculative bubbles in the Asian stock markets: Tests on deterministic explosive bubbles and stochastic explosive root bubbles [PDF]
, 2013 The standard theory of asset pricing, in which a long-run relationship should exist between stock prices and dividends if there are no deterministic explosive bubbles, assumes the constancy of expected returns.
Chen, Yen-Hsiao +3 more
core +1 more source
Problems of Measuring Gas Content in Oil in a Two-Phase Flow: A Review
EnergiesIn view of the necessity of measuring the air content in oil in two-phase flows in the context of general industry, a review of the most popular methods of measuring the air content in oil was carried out.
Cezary Edling, Paweł Śliwiński
doaj +1 more source
Negative bubbles and shocks in cryptocurrency markets
, 2016 In this paper we draw upon the close relationship between statistical physics and mathematical finance to develop a suite of models for financial bubbles and crashes.
J. Fry, Eng-Tuck Cheah
semanticscholar +1 more source
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
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
BiomimeticsGas embolism is a rare but life-threatening process characterized by the presence of gas bubbles in the venous or arterial systems. These bubbles, if sufficiently large or numerous, can block the delivery of oxygen to critical organs, in particular the ...
Karine Baassiri, Dan V. Nicolau
doaj +1 more source
Variability of Natural Methane Bubble Release at Southern Hydrate Ridge
Geochemistry, Geophysics, Geosystems, 2021 Current estimations of seabed methane release into the ocean (0.4–48 Tg yr−1) are based on short‐term observations and implicitly assume that fluxes are constant over time.
Yann Marcon +4 more
doaj +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
工程科学学报, 2015 The effects of vacuum processing time, nitrogen pressure and gas types on the total oxygen and micro non-metallic inclusions in molten steel were investigated to further improve the technology of micro non-metallic inclusion removal from molten steel ...
LI Kang-wei +5 more
doaj +1 more source