PubMed · 6179930
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B N Rankin. 1982. Visual shorthand.. https://pubmed.ncbi.nlm.nih.gov/6179930/
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The colour of Moravian white wines was evaluated instrumentally, using the trichromatic method, and by sensory analysis. The odour and flavour acceptances could be predicted very well on the basis of sensory colour evaluation, and less efficiently by instrumental method. Consumers preferred wines with prevailing yellow hue, which was associated with sweet, fruity and floral flavour notes. Green hue was considered a negative factor, without any rational relation to negatively perceived flavour notes. Logarithmic relations fit moderately better experimental results than linear relations.
Calculations of radiofrequency magnetic (B1) field and specific energy absorption rate (SAR) distributions in a sphere of tissue and a multi-tissue human head model in a 12-element birdcage coil are presented. The coil model is driven in linear and quadrature modes at 63, 175, 200, and 300 MHz. Plots of B1 field magnitude and SAR distributions, average SAR, maximum local SAR, and measures of B1 field homogeneity and signal-to-noise ratio are given. SAR levels for arbitrary pulse sequences can be estimated from the calculated data. Maximum local SAR levels are lower at lower frequencies, in quadrature rather than in linear coils, and in linear fields oriented posterior-to-anterior rather than left-to-right in the head. It should be possible to perform many experiments in the head at frequencies up to 300 MHz without exceeding standard limits for local or average SAR levels.