منابع مشابه
Session: 2G
Scanning Acoustic Microscopy (SAM) can deliver information on mechanical properties. For the investigation of bone microstructure we found the acoustic impedance as the most suitable parameter.A spatial resolution of approximately 1 um at 1 GHz allows morphological studies at the level of cellular structures. For quantitative analysis at high frequencies a smooth and plane surface is essential....
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One of the most interesting UMTS networks features is their integration with the 2G networks that provides seamless Endto-End services. Current widely deployed 2G and 3G networks provide InterRAT (Inter Radio Access Technology) mechanisms enabling interoperability between them in a manner that is almost transparent to the subscriber. These enable maximum benefit from 3G services while ensuring ...
متن کاملLong-term radical scavenging activity of AA-2G and 6-acyl-AA-2G against 1,1-diphenyl-2-picrylhydrazyl.
Stoichiometric evaluation of the radical scavenging activity of O-substituted derivatives at the C-2 position of ascorbic acid (AA) was conducted. Their reaction with a stable radical, 1,1-diphenyl-2-picrylhydrazyl (DPPH), under an acidic condition was assessed by the colorimetric method. 2-O-alpha-D-Glucopyranosyl-L-ascorbic acid (AA-2G) and a series of 6-O-acyl-2-O-alpha-D-glucopyranosyl-L-as...
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Smart phones owe some of their multimode, multiband capabilities to multithrow antenna switches. As mobile handsets evolve, a single antenna switch may handle as many as 10 transmit (Tx) and/or receive (Rx) ports. The challenges facing multithrow antenna switches for these applications are not trivial but, fortunately, solutions exist for managing high throw counts while still maintaining excel...
متن کاملRadical scavenging activity against 1,1-diphenyl-2-picrylhydrazyl of ascorbic acid 2-glucoside (AA-2G) and 6-acyl-AA-2G.
The radical scavenging activity of the stable derivatives, which are O-substituted at the C-2 position of ascorbic acid (AA), against 1,1-diphenyl-2-picrylhydrazyl (DPPH) was evaluated in buffer under different pH conditions, and compared with those of AA and alpha-tocopherol. AA was shown to have 50% radical scavenging ability (EC50) at a concentration of 2.2 x 10(-5) M against 0.1 mM DPPH in ...
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ژورنال
عنوان ژورنال: Proceedings of the Wisconsin Space Conference
سال: 2012
ISSN: 2374-8885,2374-8877
DOI: 10.17307/wsc.v0i0.35