8541
Temperature profiles are collapsed to equivalent time at a reference temperature and predict little variation in bonding along the z-axis of a part or with changes in print speed .
 Temperature, profiles, temperature, variation, bonding, z-axis, print
Please list all entity words in the text that fit the category. Output format is "word1, 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:
 Temperature, profiles, temperature, variation, bonding, z-axis, print