Information Assurance and Interoperability Assessments for Operational Testing

2007 ◽  
Author(s):  
Thomas Sloan ◽  
John Lebrecht ◽  
Tim Itoi ◽  
Thomas Frey ◽  
Greg Gross
Keyword(s):  
Information Assurance ◽  
Operational Testing

Achieving Information Assurance

2004 ◽  
Author(s):  
Ulmont C. Nanton ◽  
Jr
Keyword(s):  
Information Assurance

Evaluating the efficiency of Diesel Particulate Filters in high-duty vehicles: Field operational testing in Portugal

2011 ◽  
Vol 45 (16) ◽  
pp. 2623-2629 ◽  
Author(s):  
H. Tente ◽  
P. Gomes ◽  
F. Ferreira ◽  
J.H. Amorim ◽  
P. Cascão ◽  
...  
Keyword(s):  
Diesel Particulate ◽  
Diesel Particulate Filters ◽  
Particulate Filters ◽  
Operational Testing

scholarly journals High-efficiency CO2 separation using hybrid LDH-polymer membranes

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xiaozhi Xu ◽  
Jiajie Wang ◽  
Awu Zhou ◽  
Siyuan Dong ◽  
Kaiqiang Shi ◽  
...  
Keyword(s):  
Self Assembly ◽  
High Efficiency ◽  
Transmission Rate ◽  
Spray Coating ◽  
Separation Performance ◽  
Pdms Layer ◽  
Operational Testing ◽  
Enhanced Solubility ◽  
Double Hydroxide

AbstractMembrane-based gas separation exhibits many advantages over other conventional techniques; however, the construction of membranes with simultaneous high selectivity and permeability remains a major challenge. Herein, (LDH/FAS)n-PDMS hybrid membranes, containing two-dimensional sub-nanometre channels were fabricated via self-assembly of unilamellar layered double hydroxide (LDH) nanosheets and formamidine sulfinic acid (FAS), followed by spray-coating with a poly(dimethylsiloxane) (PDMS) layer. A CO2 transmission rate for (LDH/FAS)25-PDMS of 7748 GPU together with CO2 selectivity factors (SF) for SF(CO2/H2), SF(CO2/N2) and SF(CO2/CH4) mixtures as high as 43, 86 and 62 respectively are observed. The CO2 permselectivity outperforms most reported systems and is higher than the Robeson or Freeman upper bound limits. These (LDH/FAS)n-PDMS membranes are both thermally and mechanically robust maintaining their highly selective CO2 separation performance during long-term operational testing. We believe this highly-efficient CO2 separation performance is based on the synergy of enhanced solubility, diffusivity and chemical affinity for CO2 in the sub-nanometre channels.

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