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The test article was optimized using a stresB-based homogenized topology optimization approach and achieved a 53 % weight reduction versus a solid , fully-dense casing with the same form factor .
 homogenized, optimization, weight, reduction
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:
 homogenized, optimization, weight, reduction