9409
To link the process variables and the extent of junction growth , an expression for the real contact area at the weld interface is combined with procesB-specific frictional heating models developed here .
 concept or principle: process; application: junction; application: contact; process parameter: area; engineering feature: weld; concept or principle: interface; manufacturing process: heating
Given options, please tell me the categories of all the listed entity words.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} 
 Entities: process, junction, contact, area, weld, interface, heating 
Answer:
 concept or principle: process; application: junction; application: contact; process parameter: area; engineering feature: weld; concept or principle: interface; manufacturing process: heating