نتایج جستجو برای: bubbles spillover

تعداد نتایج: 17389  

Journal: :Analytical chemistry 2014
David K Bwambok Dionysios C Christodouleas Stephen A Morin Heiko Lange Scott T Phillips George M Whitesides

This paper demonstrates that the gas-filled compartments in the packing material commonly called "bubble wrap" can be repurposed in resource-limited regions as containers to store liquid samples, and to perform bioanalyses. The bubbles of bubble wrap are easily filled by injecting the samples into them using a syringe with a needle or a pipet tip, and then sealing the hole with nail hardener. T...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2011
Lup Wai Chew Evert Klaseboer Siew-Wan Ohl Boo Cheong Khoo

Most real life bubble dynamics applications involve multiple bubbles, for example, in cavitation erosion prevention, ultrasonic baths, underwater warfare, and medical applications involving microbubble contrast agents. Most scientific dealings with bubble-bubble interaction focus on two similarly sized bubbles. In this study, the interaction between two oscillating differently sized bubbles (ge...

2003
Laurent Pilon Raymond Viskanta

In many materials processing and manufacturing situations such as steel, aluminum, ceramics, and glass, gas bubbles can form in liquid and solid phases. The presence of such bubbles affects the thermophysical properties and radiation characteristics of the two-phase system and hence the transport phenomena. This paper presents a general formulation of the radiation characteristics of semitransp...

2008
Yao Tang

It has been argued by economists that foreign direct investment (FDI) can promote economic growth in recipients countries, via the capital accumulation effect and the technology spillover effect. However due to the endogeneity of FDI, previous empirical literature on FDI has not convincingly established the causal effects from FDI to economic growth, in particular the technology spillover. This...

2017
Jade Benjamin-Chung Jaynal Abedin David Berger Ashley Clark Veronica Jimenez Eugene Konagaya Diana Tran Benjamin F Arnold Alan E Hubbard Stephen P Luby Edward Miguel John M Colford

Background Many interventions delivered to improve health may benefit not only direct recipients but also people in close physical or social proximity. Our objective was to review all published literature about the spillover effects of interventions on health outcomes in low-middle income countries and to identify methods used in estimating these effects. Methods We searched 19 electronic dat...

2012

The interaction among information and communication technology (ICT) industries is a recently ubiquitous phenomenon through fixed-mobile integration. To monitor the impact of interaction, previous research has mainly focused on measuring spillover effect among ICT industries using various methods. Among others, inter-industry analysis is one of the useful methods for examining spillover effect ...

Journal: :Hypertension 1992
C Ferrier M D Esler G Eisenhofer B G Wallin M Horne H S Cox G Lambert G L Jennings

In essential hypertension sympathetic nerve firing is commonly increased. A central nervous system origin has been presumed but not tested directly. To estimate cerebral norepinephrine release in essential hypertension, spillover of norepinephrine into the cerebrovascular circulation was measured by isotope dilution, with high internal jugular venous sampling. Norepinephrine was released into t...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2006
Rensheng Deng Chi-Hwa Wang Kenneth A Smith

We present a study on the behavior of air bubbles captured in a Taylor vortex formed in the annulus between two concentric cylinders. It is found that small bubbles stay either at certain locations near the vortex cores or in the outflow regions along the inner cylinder. If bubbles of the same size are introduced, a variety of bubble structures (such as ring, chain, cluster, etc.) appear due to...

2009
S. M. O’Neill D. S. De Young T. W. Jones

We report results of 3D MHD simulations of the dynamics of buoyant bubbles in magnetized galaxy cluster media. The simulations are three dimensional extensions of two dimensional calculations reported by Jones & De Young (2005). Initially spherical bubbles and briefly inflated spherical bubbles all with radii a few times smaller than the intracluster medium (ICM) scale height were followed as t...

2015
Emma M. L. Chung Caroline Banahan Nikil Patel Justyna Janus David Marshall Mark A. Horsfield Clément Rousseau Jonathan Keelan David H. Evans James P. Hague

BACKGROUND Thousands of air bubbles enter the cerebral circulation during cardiac surgery, but whether high numbers of bubbles explain post-operative cognitive decline is currently controversial. This study estimates the size distribution of air bubbles and volume of air entering the cerebral arteries intra-operatively based on analysis of transcranial Doppler ultrasound data. METHODS Transcr...

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