382
The study found that both ultrasonic energy and surface roughness have a positive impact on the resulting shear strengths of the UAM fabricated structures .
 machanical property: surface roughness; concept or principle: impact; machanical property: shear strengths; manufacturing process: UAM; concept or principle: fabricated
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:
 machanical property: surface roughness; concept or principle: impact; machanical property: shear strengths; manufacturing process: UAM; concept or principle: fabricated