Table 7 Results of response surface experimental design.

From: Modeling of sand-cultivated substrate for Gobi facility agriculture and validation of trenching test

Test number

SFR

RFRS

CRFRS

Simulated stacking

angle

1

0.4

0.1

0.15

30.11

2

0.2

0.3

0.3

33.33

3

0.6

0.1

0.3

33.73

4

0.4

0.3

0.45

36.23

5

0.6

0.2

0.45

36.44

6

0.2

0.2

0.45

33.92

7

0.4

0.1

0.45

34.06

8

0.4

0.2

0.3

32.33

9

0.4

0.2

0.3

32.08

10

0.2

0.1

0.3

29.98

11

0.2

0.2

0.15

28.72

12

0.6

0.2

0.15

31.63

13

0.4

0.2

0.3

32.03

14

0.6

0.3

0.3

34.86

15

0.4

0.3

0.15

31.25