1) The document summarizes a mobile phone based cloud computing system for real-time analysis of atmospheric dispersions from the Fukushima nuclear accident in Japan. 2) The system uses cloud computing and mobile phones to process and transfer data quickly to model the wind-driven spread of radioactive contamination. 3) Mathematical models of pollution rates, emission rates, wind speeds, and other atmospheric factors are used to predict the contaminated areas and radioactive concentrations for fast emergency response.

1. Introducing Tae Ho Woo article:
Real time analysis for atmospheric dispersions for
Fukushima nuclear
accident: Mobile phone based cloud computing
assessment
INSTITUT SUPÉRIEUR DE GESTION DE TUNIS
DÉPARTEMENT INFORMATIQUE

2. Enhancing Your Presentation
4
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3. Introduction
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4. The Fukushima Daiichi Nuclear Power
Plant is a nuclear power reactor
located in the north east of Japan.
Composed of 6 boiling water reactors.
Introduction
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5. THE ACCIDENT
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6. WHAT HAPPENED?
Friday March 11th @ 2:36 pm local
Magnitude 9.0 earthquake hits the
pacific, 231 miles northeast of Tokyo.
Quake is fifth largest in the world
(since 1900).
 Generated a 14m Tsunami
The Accident
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7. AS A RESULT :
Earthquake
 Earthquake Caused Automatic
Shutdown
of 3 Operating Units
 Offsite Power Lost
14m Tsunami (less than 1 hour later)
All Emergency Back-up Power Lost
8-10 hours later Station Batteries
wear out.
The Accident
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8. SPREAD OUT OF RADIOACTIVE
CONTAMINATION IN ATMOSPHERE:
The radioactive contaminated
fallouts reached Korea by rain.
The air stream of the radioactive
fallouts had come in from the southern
regions by the air circulations.
=> The wind speed and direction has
too many uncertainties to predict, in a
very short time interval, the
contaminated area.
The Accident
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9. The Solution
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10. CLOUD COMPUTING:
The cloud computing is developed for
the fast and reliable communications
using the mobile phone.
Therefore, the data processing is
performed by the cloud computing
concept where the fast and reliable
data transferring is easily done.
The Solution
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11. SYSTEM DYNAMICS:
Is an approach to understand the behaviour
of complexe algorithme over time.
The Solution
data transferring center incorporated
with the mobile phone
Earth-quake
fast and continuous
randomized data gene
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12. cloud computing factor.
dispersion of radionuclide,
Atmospheric concentration,,
System dynamics
(SD) diagram
CLOUD COMPUTING & SYSTEM DYNAMICS:
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13. CLOUD COMPUTING & SYSTEM DYNAMICS:
Example of data:
With the using of some mathematical formula like:
pollution rate emission rate
average wind speed
Y possition Z possition
effective stack height
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14. REFERENCES
USGS, 2012. Earthquake Facts and Statistics, <http://earthquake.usgs.gov/
earthquakes/eqarchives/year/eqstats.php>.
USNRC, 1993. SECY-93-092, PRA attachment 4. USNRC Commission Papers.
Vensim, 2009. Vensim Simulation Software, Ventana Systems, Inc.
Shodor, 2012.{The formula in diapo 13} Gaussian plume model, <http://www.shodor.org>.
Tae Ho Woo ,2013.All the figure are from the article Real time analysis for atmospheric
dispersions for Fukushima nuclear
accident: Mobile phone based cloud computing assessment.
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15. Conclusion4
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16. CONCLUSION
Thanks to technology we were able to control the contamination due to Fukushima accident,
But the big question is, can we expect the next?
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