Results 71 to 80 of about 717,972 (344)

Bubbly Liquidity [PDF]

open access: yesThe Review of Economic Studies, 2011
This paper analyzes the possibility and the consequences of rational bubbles in a dynamic economy where financially constrained firms demand and supply liquidity. Bubbles are more likely to emerge, the scarcer the supply of outside liquidity and the more limited the pledgeability of corporate income; they crowd investment in (out) when liquidity is ...
Farhi, Emmanuel, Tirole, Jean
openaire   +6 more sources

LIN28B Promotes Cancer Cell Dissemination and Angiogenesis

open access: yesAdvanced Biology, EarlyView.
Children diagnosed with high‐risk neuroblastoma have a 5‐year event‐free survival rate of less than 50% and poor outcomes after recurrence. Deregulation of the LIN28B oncogene can be addressed in these patients. Upregulation of LIN28B is shown to support the metastatic cascade.
Diana Corallo   +8 more
wiley   +1 more source

Evolution of an elliptical bubble in an accelerating extensional flow [PDF]

open access: yes, 2008
Mathematical models that describe the dynamical behavior of a thin gas bubble embedded in a glass fiber during a fiber drawing process have been discussed and analyzed.
Ahmed, S.   +11 more
core  

Bubble wall perturbations coupled with gravitational waves [PDF]

open access: yes, 1997
We study a coupled system of gravitational waves and a domain wall which is the boundary of a vacuum bubble in de Sitter spacetime. To treat the system, we use the metric junction formalism of Israel.
A. Vilenkin   +18 more
core   +2 more sources

Beta Bubbles [PDF]

open access: yesThe Review of Asset Pricing Studies, 2015
We show that an increase in a stock’s breadth of institutional ownership or turnover is followed by a significant, but temporary, increase in its CAPM beta estimate and a decrease in its CAPM alpha. The increasing effect of breadth of ownership on beta estimates is mainly driven by short-term investors.
Suominen, Matti   +3 more
openaire   +4 more sources

Laboratory‐Scale Procedure for Evaluating the Flux Efficiency on Melt Cleanliness and Tensile Properties of Recycled Aluminum Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
A laboratory‐scale procedure is developed to evaluate the efficiency of melt‐cleaning and drossing fluxes during aluminium alloy recycling, studying their effects on melt cleanliness and tensile properties of secondary foundry alloys. This work provides a practical tool for foundries and aluminium refiners to assess the efficiency of salt fluxes in ...
Veronica Milani, Giulio Timelli
wiley   +1 more source

Three-dimensional simulation of the influence of different flotation media in the dissolved air flotation tank through the population balance model

open access: yesWater Science and Technology
Gas–liquid flow in the dissolved air flotation (DAF) tank was studied through computational fluid dynamics through the realizable k-ε model and the population balance model (PBM) to predict the gas content of different flotation mediums (air, carbon ...
Jingming Li   +4 more
doaj   +1 more source

Numerical study of static pressure on the sonochemistry characteristics of the gas bubble under acoustic excitation

open access: yesOpen Physics, 2023
The extreme environment formed during bubble collapse can cause a series of chemical reactions inside the bubble, and multiple products (i.e., ˙OH, H˙, O, H2, and HO2˙, etc.) are produced, which is called sonochemistry. In this study, a new model is used
Lu Chunyuan, Lou Zongyong
doaj   +1 more source

Bubble Lift-off Size in Forced Convective Subcooled Boiling Flow [PDF]

open access: yes, 2005
Forced convective subcooled boiling flow experiments were conducted in a BWR-scaled vertical upward annular channel. Water was used as the testing fluid, and the tests were performed at atmospheric pressure.
Al-Hayes   +28 more
core   +2 more sources

Optimizing Laser Ablation of Stainless Steels for Volume Removal and Surface Quality Using Burst of Pulses

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the ablation efficiency and surface quality of laser‐treated stainless steel alloys (AISI 304, AISI 420, and AISI 316Ti) using an ultrashort pulsed laser and varying burst parameters (MHz, GHz, and Bi‐burst). Both ablation rates and surface quality parameters are determined, including isotropy surface roughness values, highlighting ...
Dirk Obergfell   +2 more
wiley   +1 more source

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