Source SVG for my English presentation
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Source SVG for my English presentation
le jeudi 4 novembre, 2016
Vincent Tam
Inkscape
Open Clipart
Same as title.
Perhaps my English teacher
Sozi
Inkscape
ckhung
English
CC-BY-SA 3.0
Fantastic
Fantastic
Why fungus ?
A type of fungus called
mold grew at the tip of
carrot.
Photo by Jeremy Tarling
Sour odour
gives
know its growth
Why fantastic ?
Use fantastic maths !
t-coord | N-coord
-----------+-----------
xxxxxxxxxx | ##########
xxxxxxxxxx | ##########
xxxxxxxxxx | ##########
xxxxxxxxxx | ##########
stored inside
N = f(t)
N
t
halved storage
Fungi population (N) against time (t)
Aim: To find a simple f for developers
N
t
Fungi population (N) against time (t)
Fungi population (N) against time (t)
t
∆N
∆t
slope
Analytical meaning
Graphical meaning
change in N
N
∆N
∆t
t
N
¨slopes¨
∆t
∆N
0
50
100
RH (%)
Time (a.u.)
Relative Humidity against time
0
10
20
30
40
50
25
75
arbitrary unit
RH
max
T: period
: wet period
T
w
Smileys double in each period
Original population
New population
N is directly proportional to
The Toy model
F = A + P
F: fungi
A: active
P: passive
D: dry
W: wet
k: constant active
population growth rate
Case W → D:
A → P at constant rate λ
Case D → W:
P → A at constant rate µ
Fungi Forecast
Vincent Tam
Reference
Adan, O. C. (2011). Fundamentals of
mold growth in indoor environments
and strategies for healthy living. pp.
68–71. Springer Science & Business
Media.
1
Overview
Title
Fungus
Sour odour
Forcast
Fantastic
Data storage
Approx by curves
Rate of Change
Segment vs curve
From slope to dy/dx
Rel Humidity
Doubling Smileys
Rate & N
Toy Model I
Toy Model II
Toy Model III
Reference