July 3, 2020
<sid.inpe.br/mtc-m18@80/2009/07.23.15.13>
(repository)

Thesis
Um problema de determinação de política ótima para sistemas de manutenção com máquinas de reserva e número variável de servidores
Costa, Samuel Roberto Ximenes :1984:
(metadata from site <mtc-m16c.sid.inpe.br 804>)

The number of visits¹ since August 1, 2009 is 406.

Average number of visits per day over 10 periods of 399 days

0.08 0.15 0.14 0.12 0.06 0.04 0.21 0.08 0.06 0.09   1       2      3      4      5      6      7      8      9       10

The red period number indicates that the corresponding period contains the day May 17, 2015¹.
The height of the purple bar is proportional to the average number of visits per day
within the corresponding period.
Period 1 begins on August 1, 2009 ( ), and Period 10 ends on July 3, 2020 ( ).
The number of visits over the 10 periods is 406.
The average number of visits per day over the 10 periods is 0.10.
¹Before May 17, 2015, all each user visits (IP) were added, thereafter, only one visit per day for each user (IP) is added.