Comments

Author Comment Last activity Moderation
stoft "BTW .... the comments about LED 'voltage' perspective do not seem inline with LED parameters. With LEDs, it's not the voltage, it's the current you..." | Read more » over 4 years ago
stoft "Note: Their UV source was a PTI LS-100 fluorescence spectrophotometer -- no longer sold. From a google books print, it sounds like a variable-wavel..." | Read more » over 4 years ago
stoft "Note: The article can be downloaded w/o signing up using the 'Download Full Text' button at the upper right of the image frame on the web page. Fr..." | Read more » over 4 years ago
stoft "Aha; a very good description which explains things I'd read. I think it also directly supports my present contention that with a 400nm source and t..." | Read more » almost 5 years ago
stoft "RIght, Jeff, those are good questions and I'm not a Chemist -- I'm just extracting from what I glean from the web. But I think it would be good to ..." | Read more » almost 5 years ago
stoft "https://publiclab.org/profile/ethanbass - Thanks for your comments. As to your last note about my final plot: What I see is the depth of the "notch..." | Read more » almost 5 years ago
stoft "Ok, good points and questions. [ I do not intend to sound abrupt. I'm just focused on raising technical issues I see within and surrounding this t..." | Read more » almost 5 years ago
stoft "They look good in the pic. It is difficult to get a ideal gradients with actual dots or lines. You might try attenuating the florescence light vs l..." | Read more » about 6 years ago
stoft "btbonval - point taken, centriod is for 2D; their line just represents the 'center of distribution' " | Read more » about 6 years ago
stoft "btbonval - true. I was just suggesting a fast integer approximation as a simple means to test and get a 1-number result. The existing work in patte..." | Read more » about 6 years ago
stoft "I think the term you are looking for is the "centroid" -- think of it as the point where the shape/volume/whatever would be physically balanced -- ..." | Read more » about 6 years ago
stoft "Looks promising. Maybe these are obvious but... - Pick 3-5 oils, or oil mixtures, as a reference test set -- low to high density -- then use them f..." | Read more » about 6 years ago