iccsa-21-wind

commit 0b16274247acbddbd043094b1db58317bcd09bf8
parent 61e4e0dbe2bab3e55d32d2aaaf7dd20f0f22f36b
Author: Ivan Gankevich <i.gankevich@spbu.ru>
Date:   Sat, 20 Mar 2021 23:03:00 +0300

Rain/snow indicator.

Diffstat:
main.tex
 | 
7
+++++++
wind.mathics
 | 
2
++

2 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/main.tex b/main.tex
@@ -153,6 +153,13 @@ velocity statistical parameters.
 
 \section{Discussion}
 
+One disadvantage of three-axis anemometer is that the arm for the \(z\) axis is
+horizontal, and snow and rain put additional load on this cell distorting the
+measurements. This affects \(z\) mean value and can compensated in software by
+comparing the mean value within small time frame with the historical mean. With
+compensation \(z\) arm can be used as a snow or rain indicator. From that
+point of view having horizontal arm can be seen as an advantage.
+
 \section{Conclusion}
 
 \subsubsection*{Acknowledgements.}
diff --git a/wind.mathics b/wind.mathics
@@ -1,3 +1,5 @@
 Print[Solve[{ux^2==a1 fx,
              uy^2==a2 fy,
              uz^2==a3 fz},{ux,uy,uz}]]
+Print[D[x^(k-1) Exp[-x^k], x] // Simplify]
+Print[Integrate[x^(k-1) Exp[-x^k], x] // Simplify]