| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| mathew | "You can get the analysis spreadsheet here: https://docs.google.com/spreadsheets/d/1xSVT9lxary0zZhhEqhrX3hsdIb4shbYhaOJx_RWhESg/edit#gid=0 " | Read more » | over 8 years ago | |||
| mathew | "That's a great writeup! thanks Simon. If anyone needs an image set to play with, please e-mail me, and I can share the files. They're too large t..." | Read more » | over 8 years ago | |||
| mathew | "oh yes! please read our wiki on frac sand and PM, its getting pretty fleshed out: https://publiclab.org/wiki/frac-sand follow notes as they happen..." | Read more » | over 8 years ago | |||
| sara | "Super excited to read about this project, are their more recent notes on how your project's progressing? " | Read more » | over 8 years ago | |||
| mathew | "I found this great tutorial on automating ImageJ scripting and batch processing. It got me up and batch processing in short order: Arjun Mehta, UC..." | Read more » | over 8 years ago | |||
| SimonPyle | "@marlokeno That's a great tip for eyeballing and catching dust. On that note, as I clean up a prototype of some code to automate this process, I'm..." | Read more » | over 8 years ago | |||
| marlokeno | "@mathew, @SimonPyle, @AmberWise, @Damarquis, @Pagyebo Wonderful work- I can't imagine counting particles while sizing them, etc. So cheers to the ..." | Read more » | over 8 years ago | |||
| mathew | "Also see @Damarquis's note on using MaxEntropy https://publiclab.org/notes/Damarquis/10-20-2015/using-imagej-to-analyze-threshold-and-saving-result..." | Read more » | over 8 years ago | |||
| mathew | "I'm writing up an introduction to particles in the air right now (rough draft), and one of the questions I wanted to answer was about naked eye obs..." | Read more » | almost 9 years ago | |||
| eustatic | "awesome effort. " | Read more » | almost 9 years ago | |||
| mathew | "I'm working on creating a spreadsheet out of these equations. @Marlokeno it looks like I'm going to use Sutherland's gas law along with average te..." | Read more » | almost 9 years ago | |||
| mathew | "excellent suggestion, thanks for pulling that up! On a brief review, it confirms our experience that PM10 is probably the smallest size we can rel..." | Read more » | about 9 years ago | |||
| mathew | "8.5"x11" PDF of this page for printing: _Deploying_Passive_Particle_Monitors-full.pdf PDF made from the Wiki according to these instructions. " | Read more » | about 9 years ago | |||
| acenchase | "This is very interesting. May I suggest checking out the guide published by NIST which has some guidelines for performing image analysis by SEM in..." | Read more » | about 9 years ago | |||
| mathew | "@Damarquis has notes on using ImageJ in windows and on thresholding: http://publiclab.org/notes/Damarquis/10-20-2015/using-imagej-to-analyze-thresh..." | Read more » | about 9 years ago | |||
| marlokeno | "One possibility in order to get a clearer image is to try using the "threshold" filter in photoshop, or photoshop elements, GIMP, etc. It's helped ..." | Read more » | about 9 years ago | |||
| marlokeno | "It is possible the wikipedia article on Reynolds numbers might help- https://en.wikipedia.org/wiki/Reynolds_number At any rate, the article does g..." | Read more » | about 9 years ago | |||
| marlokeno | "There is an article in "Aeolian Research", Dec. 2014, entitled "The size distribution of desert dust aerosols and its impact on the Earth system." ..." | Read more » | about 9 years ago | |||
| jeffalk | "You probably know about the EPA site with monitoring data around the Chicago coke facilities. The EPA data could be used to compare to whatever dat..." | Read more » | about 9 years ago | |||
| liz | "This is incredible work!!!! You guys are awesome! " | Read more » | about 9 years ago | |||
| mathew | "further followup on analysis of samples. " | Read more » | about 9 years ago | |||
| mathew | "read my follow-up on imaging the samples " | Read more » | about 9 years ago | |||
| bareczek | "interesting " | Read more » | about 9 years ago | |||
| mathew | "That candle protector is a great way to picture how this sensor works! I think the tiny grate on top of the sensor itself does something similar. ..." | Read more » | about 10 years ago |