Electronics
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What is Off-Odor?
What is off-odor? The true answer is you’ll know it when you smell it! Doesn’t have to stink like dead fish or 2 week old ground beef left in the refrigerator, although those certainly are obnoxious. Off-odor can be a nice fresh floral smell, like that of a rose, only the rose aroma originates from […]
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Quality Analysis of Printed Circuit Boards
Printed circuit boards (PCBs) and 1206 sized components were placed in a hot chamber at 255 oC for 2.5 minutes and off-gassing chemicals were trapped by Tenax molecular sieve/ cyrotrap with liquid nitrogen. Chemical identities were determined by gas chromatography/ mass spectrometry. The most striking difference between printed circuit boards (PCBs) was due to a […]
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Statistics of Sensory Assessment: Cohen’s Kappa
Statistics of Sensory Using people as diagnostic sensors produces more variation than instrumental methods. There are situations where the benefits of human-based measures outweigh their inconsistency. This is particularly true for aromas and flavors. Choosing, training and aligning panelists is a big investment. If sensory activities are key to your business success, you need to [...]
