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440                                     LES PORTIQUES

   70                                                        70                                                                                        α

          α  Z = 0.75 ; L = H =10       b 2.60                                                                                                            Z = 0.75 ; L =10 ; H = 5      b 2.60
                         h1 h2                                                                                                                                        h1 h2             H 2.40
   65                                   H 2.40
   60                                                                                                                                                                                              2.20
   55                                   2.20                                                                                                                                                       2
   50                                                 65
   45                                                                                                                                                                                   10 1.80
                                        2
                                                                                                                                                                                         8
                                                 1.80        60                                                                                                                          6
                                                             55                                                                                                                          4
                                        10
                                        8                                                                                                                                                          1.60
                                        6
                                                                                                                                                                                         2
                                                  1.60
                                                                                                                                                                                                   1.40
                                        4
                                                                                                                                                                                        k=1
                                                  1.40
                                                                                                                                                                                                   1.20
                                         2
                                                                                                                                                                                                   1
                                        1.20 50

                                        k=1                  45

                                                 1

40 40
                                                                                                                               0.80 0.80

35           Hα                      α                       35                                                                                           Hα                         α

                                                     L                                                                                                    bL                                       L
             bL b                                                                                                                                                                       b

                                                     H 0.60                                                                                                                                        H 0.60

30 30

    0 1 2 3 4 5 6 7 8 9 10                                                                                                                             0 1 2 3 4 5 6 7 8 9 10

70           Figure 2.24.13.                                 70                                                                                           Figure 2.24.14.

      α       Z = 0.375 ; L = H =10     b 2.60                                                                                                         α  Z = 0.375 ; L =10 ; H = 5     b 2.60
                            h1 h2                                                                                                                                       h1 h2           H 2.40
                                        H 2.40

                                                                                                                               2.20 2.20
65 65

                                                                                                                               22

                                                                                                                    10 1.80                                                              10

                                                                                                                                                   8                                    6 8 1.80

60 6 60                                                                                                                                                                                 4

                                                                                                                                                   4                                    2

                                                                                                                               1.60                                                              1.60

                                                                                                                                                    2                                   k=1

55 55                                                                                                                                                                                            1.40
                                                                                                                               1.40

                                                                                                                                                  k=1                                   1.20

50 1.20 50

45 1 45 1

40 40
                                                                                                                               0.80 0.80

35           Hα                      α                       35                                                                                           Hα                         α

                                                     L                                                                                                                                            L
             b L b H 0.60                                                                                                                                 b L b H 0.60

30                                                           30
    0 1 2 3 4 5 6 7 8 9 10                                       0 1 2 3 4 5 6 7 8 9 10

             Figure 2.24.15.                                                                                                                              Figure 2.24.16.
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