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The penetration depth has been utilized as the quality criterion of the adaptive control loop for both processes .
 process parameter: penetration depth; material: as; concept or principle: quality; concept or principle: adaptive control; concept or principle: processes
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
Answer:
 process parameter: penetration depth; material: as; concept or principle: quality; concept or principle: adaptive control; concept or principle: processes