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Why do Champagne bubbles rise the way they do? Scientists’ new discovery is worthy of a toast（图）
流体力学 表面活性剂 气泡流
2023/6/26
Fluid mechanics researchers from Brown University and the University of Toulouse found that surfactants give the celebratory drink its stable and signature straight rise of bubbles.
Some engineers find inspiration in the mechanics of bird flight and the architecture of bee nests. Others think much smaller.
Cavitation bubbles bursting with cleaning power
Cavitation bubbles bursting cleaning power
2016/1/17
Since prehistoric times, clays have been used by people for medicinal purposes. Whether by eating it, soaking in a mud bath, or using it to stop bleeding from wounds, clay has long been part of keepin...
Social media news consumers at higher risk of 'information bubbles,'IU study says
Social media news consumers higher risk information bubbles
2015/12/22
Indiana University researchers have found that people who seek out news and information from social media are at higher risk of becoming trapped in a "collective social bubble" compared to using searc...
Discovery about the destructive power of bubbles could lead to new industrial applications
the destructive power bubbles new industrial applications
2015/7/13
Virginia Tech engineers have shed light on what happens to a nearby particle when bubbles burst.Sunghwan Jung, an assistant professor of biomedical engineering and mechanics in theCollege of Engineeri...
Argonne scientists announce first room-temperature magnetic skyrmion bubbles
Argonne scientists room-temperature magnetic skyrmion bubbles
2015/6/18
New ideas are bubbling up for more efficient computer memory.Researchers at UCLA and the U.S. Department of Energy’s Argonne National Laboratory announced today a new method for creating magnetic skyr...
Inexperienced Investors and Bubbles
Mutual Funds Behavioral Finance Experience Learning Asset Pricing Stock Price Bubble
2015/4/22
We use mutual fund manager data from the technology bubble to examine the hypothesis that inexperienced investors play a role in the formation of asset price bubbles. Using age as a proxy for managers...
Very Few Exercise-Induced Arterialized Gas Bubbles Reach the Cerebral Vasculature
SCUBA DIVING GAS EMBOLI GRADING ARTERIAL GAS EMBOLI INTRAPULMONARY ATERIAL-VENOUS ANASTOMOSES
2017/4/20
Introduction: Arterialization of venous gas emboli (VGE) formed after surfacing from SCUBA diving can become arterial gas emboli (AGE) through intrapulmonary arterial-venous anastomoses that open with...
Customized Soap Bubbles Set to Transform Drug and Vaccine Delivery
Soap Bubbles Transform Drug Vaccine Delivery
2015/3/4
When University of Maryland Professors Philip DeShong and Daniel Stein began tagging soap bubbles with biomolecules, they had no idea this technology would one day be poised to cha...
A common feature of the X-ray bubbles observed in Chandra images of some "cooling flow" clusters is that they appear to be surrounded by bright, cool shells. Temperature maps of a few nearby luminous ...
Recent repeated occurrences of Gas bubbles streaming water jets along Achankovil shear zone of south India and their seismotectonic significance
Achankovil shear zone gas bubbles water jets
2014/11/12
Achankovil shear zone is a major tectonic crustal segment of south India.The recently
observed gas bubbles streaming water jets in the ponds along the shearzone and the minor
tremors released betw...
Endogenous Formation and Collapse Of Housing Bubbles
Endogenous Formation Collapse Of Housing Bubbles
2014/8/8
This paper develops an analytical framework and an agent-based spatial model of the housing market. We show that lenient nancing, in particular, low down payment requirement has caused business cycle...
Champagne subregions with unavoidable bubbles
Champagne subregions unavoidable bubbles Analysis of PDEs
2012/6/29
A champagne subregion of a connected open set $U\ne\emptyset$ in $R^d$, $d\ge 2$, is obtained omitting pairwise disjoint closed balls $\bar B(x, r_x)$, $x\in X$, the bubbles, where $X$ is a locally fi...
Super-exponential bubbles in lab experiments: evidence for anchoring over-optimistic expectations on price
rational expectations nancial bubbles speculation anchoring laboratory experiments behavioral model super-exponential growth
2012/6/2
We analyze a controlled price formation experiment in the laboratory that shows evidence for bubbles. We calibrate two models that demonstrate with high statistical significance that these laboratory ...
Real Estate Bubbles and the Economic Crises: The Role of Credit Standards and the Impact of Tax
the institute of revenues rating valuation property tax
2011/9/11
This paper was presented at the 12th International Conference, Land Value Capture in Urban Development: Role of Property Tax in Local Finance, held in Warsaw, Poland, June 23 and 24, 2009. The confere...