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Advances in Tribology
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Advances in Tribology
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2016
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Article
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Tab 2
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Research Article
The Application of Response Surface Methodology in the Investigation of the Tribological Behavior of Palm Cooking Oil Blended in Engine Oil
Table 2
Process parameter and its level.
Parameter
ā1
0
+1
Volume concentration (%)
0
5
10
Speed (rev/min)
200
250
300
Load (kg)
2
5.5
9