Decomposition of Solvent Extraction Media during Nuclear Reprocessing: Literature Review

1995 ◽  
Vol 30 (13) ◽  
pp. 2603-2630 ◽  
Author(s):  
A. Tahraoui ◽  
J. H. Morris
2018 ◽  
Vol 20 (47) ◽  
pp. 29588-29590 ◽  
Author(s):  
Ryoji Kusaka ◽  
Masayuki Watanabe

VSFG study on interfaces of TBP/uranyl aqueous solutions shows that uranyl ion does not form complexes with TBP at the interface, and proposes a new extraction mechanism.


2019 ◽  
Vol 107 (5) ◽  
pp. 423-429 ◽  
Author(s):  
Parveen Kumar Verma ◽  
Rajesh Bhikaji Gujar ◽  
Prasanta Kumar Mohapatra

Abstract Ruthenium (106Ru), a notorious fission product in nuclear reprocessing cycle, which gets partitioned at each step needs to be recovered. The recovery of Ru from acidic high level waste (HLW) is of great importance to the nuclear fuel cycle. Quantitative recovery of Ru was achieved from acidic feeds using oxidative trapping mechanism strategy where NaIO4 was used as an oxidant to convert different species of Ru in acidic phase to RuO4 while n-dodecane was used as trapping agent for RuO4. Stripping was attempted using NaOH and NaClO mixture. Attempt was made to optimize various parameters for 103Ru extraction and stripping. 103Ru tracer spiked simulated high level waste was used to understand the 103Ru behaviour in actual waste. The composition of stripping solution (alkaline hypochlorite) was also optimized to have >95% Ru into the aqueous phase in ca. 180 min.


2011 ◽  
Vol 105 (3-4) ◽  
pp. 304-313 ◽  
Author(s):  
Zhaowu Zhu ◽  
Wensheng Zhang ◽  
Chu Yong Cheng

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):  

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