Drag reduction with polymers in gas-liquid/liquid-liquid flows in pipes: A literature review

2010 ◽  
Vol 2 (1) ◽  
pp. 41-48 ◽  
Author(s):  
Abdelsalam Al-Sarkhi
Author(s):  
Chang-Hwan Choi ◽  
Joonwon Kim ◽  
Chang-Jin Kim

We report nano-engineered surfaces (NanoTurf), designed to make various micro- and nano-fluidic devices and systems less frictional for liquid flows, and describe microchannels made with such a surface. While our group has reported a dramatic (> 95%) drag reduction of discrete droplets flowing in a space between two parallel-plates covered with “random” nano-posts created by the “black silicon method” [1], this paper describes various nanofabrication techniques, including those capable of “designing” nanostructures with not only a good control of pattern sizes and periods but also practical manufacturability to be embedded in various micro- and nano-fluidic devices and systems. Microchannels are developed using the designed nanostructure surfaces and used for continuous flow tests.


AIChE Journal ◽  
1987 ◽  
Vol 33 (2) ◽  
pp. 351-352 ◽  
Author(s):  
D. D. Kale

2013 ◽  
Vol 20 (3) ◽  
pp. 91-106 ◽  
Author(s):  
Rachel Pizarek ◽  
Valeriy Shafiro ◽  
Patricia McCarthy

Computerized auditory training (CAT) is a convenient, low-cost approach to improving communication of individuals with hearing loss or other communicative disorders. A number of CAT programs are being marketed to patients and audiologists. The present literature review is an examination of evidence for the effectiveness of CAT in improving speech perception in adults with hearing impairments. Six current CAT programs, used in 9 published studies, were reviewed. In all 9 studies, some benefit of CAT for speech perception was demonstrated. Although these results are encouraging, the overall quality of available evidence remains low, and many programs currently on the market have not yet been evaluated. Thus, caution is needed when selecting CAT programs for specific patients. It is hoped that future researchers will (a) examine a greater number of CAT programs using more rigorous experimental designs, (b) determine which program features and training regimens are most effective, and (c) indicate which patients may benefit from CAT the most.


2012 ◽  
Vol 13 (3) ◽  
pp. 79-86 ◽  
Author(s):  
Julie Haarbauer-Krupa

AbstractPurpose: The purpose of this article is to inform speech-language pathologists in the schools about issues related to the care of children with traumatic brain injury.Method: Literature review of characteristics, outcomes and issues related to the needs serving children.Results: Due to acquired changes in cognition, children with traumatic brain injury have unique needs in a school setting.Conclusions: Speech-Language Pathologists in the school can take a leadership role with taking care of children after a traumatic brain injury and coordination of medical and educational information.


1997 ◽  
Vol 2 (6) ◽  
pp. 7-7
Author(s):  
Robert Haralson
Keyword(s):  

1999 ◽  
Vol 4 (1) ◽  
pp. 9-9
Author(s):  
James B. Talmage
Keyword(s):  

1997 ◽  
Vol 2 (5) ◽  
pp. 7-7
Author(s):  
James B. Talmage
Keyword(s):  

1999 ◽  
Vol 4 (2) ◽  
pp. 11-11
Author(s):  
James B. Talmage
Keyword(s):  

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