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(2) Investigation

Investigation 1. Temperature of incubator

 

Method: Incubator was divided into nine area, the thermometer was put on each area, every 3 hours, three days (Monday, Wednesday, and Friday) were chosen, and the temperature of each area was measured.

 

Incubator Area10: The thermometer of a thermostat

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Result: For three days - The highest value and the minimum value being shown.

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Red number is the value of 38.0 degrees C or more, and blue number is the value of 36.0 degrees C or less.

 

View :

1] The temperature in incubator changes with the places.

2] There is a difference of temperature in one day.

3] The problem by electric power failure.

 

Recommendation:

1] Avoid use of the area where average temperature is low, and the area where a difference of temperature is large.

2] Installation of a generator. (place in a generator with incubator)

 

Generalization:

The big problem of this incubator is an extreme temperature change. This is caused by repeated electric power failure. This temperature change will be the cause of having caused growth delay.

It is fairly said in the past several years that the number of times of electric power failure decreased. However, it is a problem that at least one electric power failure is connected with a big problem, it is that laboratory equipment was damaged by sudden electric power failure.

 

Investigation 2

In order to investigate the condition of a culture medium and the cultivation method, four kinds of test tubes were prepared and investigation was begun as follows.

 

The contents of investigation

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