It is found that the model established by the stepwise method is practically significant with Y = −71.168 + 6.946 x 1 + 25.799 x 3 , where Y , x 1 and x 3 represent the dielectric constant, Nd content and the density, respectively.
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The Dielectric Constant of Ba<sub>6-3<i>x</i></sub>(Sm<sub>1-<i>y</i></sub>Nd<sub><i>y</i></sub>)<sub>8+2<i>x</i></sub>Ti<sub>18</sub>O<sub>54</sub> (<i>x</i> = 2/3) Ceramics for Microwave Communication by Linear Regression Analysis.
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