| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| mathew | "cool opportunity, @Philrosenberg! you may want to share it out with the Public Lab Air Quality list: http://publiclab.org/lists @Marlokeno: The q..." | Read more » | about 8 years ago | |||
| mathew | "@marlokeno material and charge probably matter quite a bit. There are several research projects using the charge of certain particles for detectio..." | Read more » | about 8 years ago | |||
| mathew | "Thanks for sharing that, Nicholas. I've started keeping a list of sensor evaluations on the wiki page for optical pm monitors: https://publiclab.o..." | Read more » | about 8 years ago | |||
| mathew | "I was able to get one of the nuts to sit firmly at the bottom, but the other two wouldn't. My print might be a little messy there, I'm not sure. O..." | Read more » | about 8 years ago | |||
| mathew | "Awesome Richard, thanks! The basic mechanism of the rubber bands works flawlessly, the smooth motion is really impressive. I have to post a video..." | Read more » | about 8 years ago | |||
| mathew | "the authors did two levels of survey-- first the 6 minute 'snapshots' and then they used that to determine where to place passive monitors for long..." | Read more » | about 8 years ago | |||
| mathew | "hah! school networks are always a problem. I posted a note recently on hotspot identification, the first stage of which involved a systematic surv..." | Read more » | about 8 years ago | |||
| mathew | "I'm revisiting your note, just want to say again how cool this is! great to see you're still up and posting data. " | Read more » | about 8 years ago | |||
| mathew | "I want to note that while Open Pipe Kit development continues, running this comparison has been a low priority since AQICN is running effectively t..." | Read more » | about 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 » | 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 | "awesome resources and case! hadn't seen this summary of low cost PM sensors: http://www.aqmd.gov/aq-spec/evaluations#&MainContent_C001_Col00=2 " | Read more » | over 8 years ago | |||
| mathew | "if you're interested, we made Dylos drivers for Open Pipe Kit for the Pi-- its a flexible platform for pushing data to Phant and any other database..." | Read more » | over 8 years ago | |||
| mathew | "this is really cool! I'm using a commercial microscope right now, and really need to move to an automated slide stage to automate the assay. This ..." | Read more » | over 8 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 » | over 8 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 » | 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 | |||
| mathew | "Real neat! two comments about the setup: the shinyei should have everything but the intake and outlet covered to prevent light leakage. you may w..." | Read more » | almost 9 years ago | |||
| mathew | "@nshapiro is right, there is no low cost speciation of dust particles. That is usually done in a mass spectrometer or x-ray diffraction spectromete..." | Read more » | almost 9 years ago | |||
| mathew | "I don't see any images of them running the device-- seems like they demoed it under glass in January. it looks like a non-functional prototype. is..." | Read more » | almost 9 years ago | |||
| mathew | "@jefffalk @marlokeno interested in your thoughts on this plan. " | Read more » | about 9 years ago | |||
| mathew | "right above "Step 1" is a paragraph with links to the stores where parts are available. " | Read more » | about 9 years ago | |||
| mathew | "@marlokeno do you have the link to the DIY SEM? I don't see it in your note. I would love to re-use an old CRT electron gun, but I agree with you..." | Read more » | over 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 » | over 9 years ago |