| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| johnb1003 | "@warren I actually did not create that list / documentation. However, once I get a functioning air sensor I do planning on creating similar documen..." | Read more » | over 5 years ago | |||
| zengirl2 | "This looks great—also looks like others have faced similar issue with 8266 and Shinyei sensor just through googling. Here’s one example (although s..." | Read more » | over 5 years ago | |||
| warren | "Ooh, i love the very succinct bill of materials with links and prices! Great documentation! Did you write that documentation? Copying it in here fo..." | Read more » | over 5 years ago | |||
| warren | "Hi, @JuanfraAlvarez - what is the mapping site you're using? Would you be interested in adding a layer to maps across PublicLab.org? We're compilin..." | Read more » | about 6 years ago | |||
| warren | "Collecting notes on different sensors here! https://publiclab.org/q/15751 " | Read more » | about 6 years ago | |||
| mathew | "You can see more about the shape descriptors for each particle here: https://publiclab.org/notes/mathew/09-19-2015/using-imagej-to-process-passive-..." | Read more » | over 7 years ago | |||
| mathew | "The image analysis creates: perimeter of each particle area of each particle circularity of each particle Circularity is the ratio between the..." | Read more » | over 7 years ago | |||
| warren | "Hi! Just re-reading, is it right that the image analysis produces (as it's complete output): perimeter of each particle area of each particle ..." | Read more » | over 7 years ago | |||
| xose | "Hi @jeffalk! Thanks for your help! That's not a basic question. That's in fact the kind of answer we've received from Shinyei, that every sensor ha..." | Read more » | over 7 years ago | |||
| jeffalk | "Please excuse this basic question but what makes you think that all such devices should calibrate with the same resistance? You've shown that for s..." | Read more » | over 7 years ago | |||
| JuanfraAlvarez | "I have just found this: http://takingspace.org/wp-content/uploads/ShinyeiPPD42NS_Deconstruction_TracyAllen.pdf "In the two that I tested, VR3 was ..." | Read more » | over 7 years ago | |||
| JuanfraAlvarez | "thanks @warren, that post (pdf of field calibrations) is the reason we changed the sampletime to 3600000ms (1h) as this guys have tested its in ho..." | Read more » | over 7 years ago | |||
| warren | "Awesome post and good questions! I did find this interesting post w some possibly helpful info: https://publiclab.org/notes/Willie/04-01-2014/fie..." | Read more » | over 7 years ago | |||
| JuanfraAlvarez | "Here the PM10 (and NO2) Levels this afternoon. " | Read more » | over 7 years ago | |||
| JuanfraAlvarez | "If you want to check the station we are going to be using as reference, its exactly the one circled in the image, you can check it in this link htt..." | Read more » | over 7 years ago | |||
| imvec | "Found out that seedstudio folks have this image in the documentation but no value... https://raw.githubusercontent.com/SeeedDocument/Grove_Dust_Sen..." | Read more » | over 7 years ago | |||
| mathew | "Followup on automating this process https://publiclab.org/notes/SimonPyle/05-13-2016/automating-imagej-for-particle-image-analysis " | Read more » | almost 8 years ago | |||
| nshapiro | "Hi @bdebaque sounds interesting! Do you know at what altitudes pm 2.5 measurements remain relevant for surface level exposure? If so I'd love to k..." | Read more » | about 8 years ago | |||
| bdebaque | "Thanks for the idea, here is a book worth reading: Aerosol Measurement: Principles, Techniques, and Applications publié par Pramod Kulkarni,Paul A..." | Read more » | over 8 years ago | |||
| mathew | "the airflow issue may be solvable with a reciprocating pump. We've been playing with AC pumps, you probably would need a DC pump and some good pow..." | Read more » | over 8 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 » | over 8 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 » | over 8 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 » | over 8 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 » | over 8 years ago |