9 Preliminary anti-action
If it will be necessary to do an action with both harmful and useful effects, this action should be replaced with anti-actions to control harmful effects.
• Buffer a solution to prevent harm from extremes of pH.
Create beforehand stresses in an object that will oppose known undesirable working stresses later on.
• Pre-stress rebar before pouring concrete.
• Masking anything before harmful exposure: Use a lead apron on parts of the body not being exposed to X-rays. Use masking tape to protect the part of an object not being painted
• Buffer a solution to prevent harm from extremes of pH.
Create beforehand stresses in an object that will oppose known undesirable working stresses later on.
• Pre-stress rebar before pouring concrete.
• Masking anything before harmful exposure: Use a lead apron on parts of the body not being exposed to X-rays. Use masking tape to protect the part of an object not being painted
Is this principle frequently used?
This principle is rarely used with 26 instances in the matrix.This principle is proposed to solve the following contradictions:
Click on a contradiction to explore it
2/32 5/27 6/4 7/14 8/14 10/3 10/7 11/14 12/15 13/14 14/6 14/8 15/3 17/3 17/4 19/14 20/2 22/2 27/3 29/2 32/34 34/9 34/14 36/33 37/25 38/15
The colour indicates the ranking of the proposed principle to solve the contradiction:
1st,
2nd,
3rd,
4th.
This ranking reflects the frequency of occurrence of the principle in the analysed patents for this type of contradiction.
When a principle appears in first position, it means that it is statistically the most used in the patents studied for this type of problem.