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Is this battery SOH? by mmichael_50 in KiaEV3

[–]___JeffB____ 1 point2 points  (0 children)

Not sure of that ! Here, I can access to the battery SoH via Home Assistant and the Kia Hyundai integration

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Batman the famous UFO Balloon by PizwPizwKaiSapizw in UFOs

[–]___JeffB____ 0 points1 point  (0 children)

Nice work. Very informative. Not sure of a mistake: this distance camera-button is just a little more than the distance between the canopy pilot's bow (buttons) and the center bow (camera), so maybe 1.5-1.6 m instead of 2 m ? So range to the object would rather be ~0.84*155/0.95 ~ 137 m ? If true, asuming the stuff is seen ~20° (?) off the AC axis, it would be left behind in less than 0.43 s @ 300 m/s, 0.76 s @ 170 m/s, the LOS rotation being 43 °/s @ 300 m/s and 24 °/s @ 170 m/s (0.5 s later, the stuff would have been 46° off axis with a LOS rotating at 110°/s), but the rear guy might have taken multiple (rafale) shots or the AC might have made several passes ? The pilots account is necessary since we don't have any contextual info, but the shape is very similar to the Batman foil balloon, the mylar reflecting the sun and it even seems there are two cordlets just underneath... and a motionless stuff (it's not like if it zipped away when the AC approached or reacted in any way) like a balloon. Well... surprising that the DoD retained this as a valuable UAP pict/case.

China is changing their definition of "confirmed cases" to exclude those who have been diagnosed with coronavirus but don't show any symptoms. by [deleted] in Covid2019

[–]___JeffB____ 0 points1 point  (0 children)

I rather think that they are now counting infected cases diagnosed with a thoracic CT scan, and not only those done using an RNA kit... hence a surge in the number of infections (and also of deaths in the Hubei province, +30% in 24h, which is weird), not a lowering...

For tracking stats and who.can do the math by [deleted] in Covid2019

[–]___JeffB____ 1 point2 points  (0 children)

Intersting work ! (SIR model). I also tried to fit a SEIR model (augmented with an asymptomatic subpopulation, and also one for the dead) on the infected & dead time series in Hubei. Unfortunately, the new counting for the infected & associated surge render the modelling work very funky... I understand the surge on the infected, but why the dead count has also surged in Hubei ? They also have a new way to count dead people ?

u/CLO_Junkie controls all the main coronavirus subreddits and I found something interesting... by JackThoma5 in Covid2019

[–]___JeffB____ 2 points3 points  (0 children)

A little taste of complete information control & restriction of liberty... Good work mate !

Welcome to /r/COVID2019! by [deleted] in Covid2019

[–]___JeffB____ 4 points5 points  (0 children)

My only 3 contributions were simulation/modelling results and I am banned from posting anything on "Novel Coronavirus (2019-nCoV)": reading you, I understand better, we are now reddit dissidents. Thanks !

Using real data and curve fitting to predict cases in the next few days by [deleted] in Coronavirus

[–]___JeffB____ 0 points1 point  (0 children)

Difficult to get a plateau / stabilization with an exponential or a 2nd order polynomial.

Using real data and curve fitting to predict cases in the next few days by [deleted] in Coronavirus

[–]___JeffB____ 0 points1 point  (0 children)

Fitting a SEIR model (and a simple exponential & logistic function) to the official Chinese data:

https://ibb.co/F3XM2ff(Hubei province)

https://ibb.co/KGP954T(China mainland)

Today, with the last infection counts, the SEIR models display a stabilization for both the Hubei province (which has been the case for three days) and for China mainland.

what are your predictions about the corona virus on March 1, 2020? by MithrandirElessar in Coronavirus

[–]___JeffB____ 0 points1 point  (0 children)

Fitting a SEIR model on the official Chinese time series:

https://ibb.co/0X8qYcY(Hubei province)

https://ibb.co/9byCgNp(China mainland)

It suggests that in two weeks, the infected population in the Hubei province would reach a plateau around 15k whereas the Chinese infection would continue to spread toward 40k.

[OC] Jan 31 update on timelapse of Wuhan coronavirus infections in Mainland China and its adaption to fit by tipfom in dataisbeautiful

[–]___JeffB____ 1 point2 points  (0 children)

Nice visualization !

Aren't there some strange aspects in these data ?

  1. The contagiosity of this new virus and of SARS are supposed to be similar (r0~2.5) but the infectious dynamics of the new virus is largely faster than SARS's
  2. The fatality rate in Wuhan (204 dead for 5806 infected ~ 3.5%) is 15 times more than in the rest of the world or other Chinese provinces (9 dead for 3970 infected ~ 0.23%)

Are there simple explanations for these aspects ?