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We report on the results achieved with the first SPECT insert for general purpose MR scanners, developed within the INSERT project (INtegrated SPECT/MRI for Enhanced stratification of brain tumors in Radio-chemoTherapy). The present paper focuses on the implementation and performance assessment of a preclinical version of the SPECT. A clinical configuration is currently under development and will...
The paper introduces a new way for teaching of delay insensitive asynchronous logic circuits. The studies start on high level models, which are VHDL implementations of Dennis-type static dataflow systems. Investigating the operation of the concurrent processes of these models, the main elements of the delay insensitive systems can be derived. Introducing constant weight ‘m-of-n’ codes immediately...
A circuit which reduces the V/sub BE/ wafer spread of a standard bipolar transistor in linear ICs is described. This compensation circuit takes advantage of the close correlation between I/sub s/ and beta r. The spread of V/sub BE/ is the major source of output error in IC temperature sensors with intrinsic reference, which thereby require resistive trimming.<<ETX>>
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