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Table 1 Inventive principles in terms of the first coupling

From: Design process of the nanofluid injection mechanism in nuclear power plants

Inventive principles Description of inventive principles
1. Cheap short-living Replace an expensive object with a multitude of inexpensive objects, compromising certain qualities
2. The other way around Invert the action used to solve a problem. For example, instead of cooling an object, heat it.
Make the movable parts fixed, and the fixed parts movable
Turn the object 'upside down'
3. Segmentation Subdivide an object into parts
Make an object easy to disassemble
Increase the degree of fragmentation of an object
4. Inert atmosphere Replace a normal environment with an inert one
Add neutral parts, or inert additives to an object