Tootfinder

"New filtration technology could be gamechanger in removal of Pfas ‘forever chemicals’"
#PFAS #ForeverChemicals

These ice lenses are giving me a tough time in processing today, they're everywhere. But if I believe the satellite data, they also shouldn't exist. It appears we are underestimating surface melt* in Antarctica.
*But not runoff! These are refrozen meltwater layers
#iQ2300 #DronningMaudLand #Fieldwork

Looking to have someone redraw the icon for the "coupler de-embed" filter in ngscopeclient as I'm not thrilled with the current one.
The big question is, what should it actually depict?
The filter performs directivity enhancement for a dual directional coupler. It takes in the measured forward and reverse waveforms, S-parameters of the coupler, and outputs new forward and reverse waveforms with (most of) the leakage removed.

The Zoom #H1n #fieldRecorder has served me well so far, 5 years on.
https://www.earth.org.uk/note-on-Zoom-H1n-<…

On the Zoom H1n Handy Field Recorder: Review
Finally time to get my own portable audio recorder!

🇺🇦 #NowPlaying on KEXP's #Audioasis
Foul Weather:
🎵 MVT 4
#FoulWeather
https://open.spotify.com/track/2tRtT7zSmZLUJn7tSd1LQK

Mostly I've always used middleware to apply broad swaths of business logic to my ASP.NET Core operations, but found a nice use case for ActionFilterAttributes if you need to selectively implement business logic to specific controller items (https://learn.…

ASP.NET MVC 4 Custom Action Filters
ASP.NET MVC provides Action Filters for executing filtering logic either before or after an action method is called. Action Filters are custom attributes tha...

Largest federal employee union calls for Noem, Miller's resignations (ABC News)
https://abcnews.go.com/US/live-updates/minneapolis-ice-shooting-live-updates-doj-investigating-apparent/?id=129340693&entryId=129600588&userab=abcn_du_cat_topic_feature_holdout-474*variant_b_redesign-1939,abcn_popular_reads_exp-497*variant_c_3days_filter-2078,abcn_ad_cadence-481*control-a-1962,abcn_news_for_you_exp-496*variant_a_control-2074,otv_web_content_rec-445*variant_c_trending-1851&userab=abcn_du_cat_topic_feature_holdout-474*variant_b_redesign-1939,abcn_popular_reads_exp-497*variant_b_7days_filter-2077,abcn_ad_cadence-481*control-a-1962,abcn_news_for_you_exp-496*variant_a_control-2074,otv_web_content_rec-445*variant_b_less_popular_bias-1850
http://www.memeorandum.com/260127/p142#a260127p142

There's still room to tune - shallow memory throughput is definitely suboptimal due to latency issues I need to chase - but with deep memory ngscopeclient ThunderScope is getting some pretty impressive performance.
2 channels @ 50M point memory depth (100M points per trigger) streaming at 7.5 WFM/s over LAN from across the building through a router. 40Gbase-SR4 from client to core switch and from core switch to router, then back to core switch, then 10Gbase-SR to the machine host…

"Washing machine filter captures microfibers as small as 20 micrometers in size"
#Plastic #Plastics
https://

Washing machine filter captures microfibers as small as 20 micrometers in size
A single laundry load containing synthetic clothing can release thousands of plastic microfibers from nylon, acrylic and polyester materials. Lab testing of an SA-made washing machine filter at Flinders University shows it can be a useful new way to help protect waterways from polyester and other synthetic microparticles.

Took a look at the ngscopeclient "fall time" filter since it's the next in line alphabetically for some refactoring and decided hey, the inner loop is pretty simple let's try GPUing it.
But first I wanted to get a baseline run time for 50M points (790 ms).
Aaand found numerical stability issues. So I need to fix the algorithm before I optimize it.
This is why we use int64's for time values in all new code, not float32 or even (as done here) float64.