??s s????????t???s ????sés ???s ?? ?????tr? ???s ??r??tt??t ?? ???é??s?r s???????t ??s ??????t???s s? ?é????????t ???s ?? s??s ?? ????????? ??s ???ts ?? ??s s???????t???s s?r?? ,
?t?r ? cr ?s ?????t?? ?q??? t? 0.26? t??s ????s t??t t?? str?? ??? s????rt ?226 ?P? ?? r?s????? str?ss ?? t?? ????s ????r 100 ?P? ?? str?? t??s? ,
r ????r??t ?r??? t??? ????????ts? ??? ????t????? str???s ?r? ?????t?? ?s??? t?? ?q??t???s ?r?s??t?? ?? ????s ?? ??? ???? ????r?s ??? t? ??? ??????t? t??s ??s??ss???? ??r µ = 0.01 t?? str?? ????r t??s??? ?s ??r???t?? ??t? ,
01 ??? ???= 480 ?? t?? str?? ?s ??r???t?? ??t? ?s s? ????r??t ??? ?????s? ????r? ????? ?????t??? ?? t?? ?????t ?????t??? ??t? µ = 0.01 ??? ???r??s??? ???? ????r? ???? ????str?t?s t?? str?? s????s ????r ? str?? t??s??? ?? 100 ,
?? ??r???r ??s ?é???ts? ??s ??????t???s ?t ???r ?????t??? ??????t??t ??ss?? ????t à ?? ??r?? ??éq?????r???? ???? ?st ?t???sé? ???r ???tr???s?r ??s ???ts ????? ??r??t??? ?? ?r?tt????t? ????q?? s?s ???ts ?? s????t ??s é?????ts ???r ??s ??r?s ????s ???s ??s ???? ??t???s ét???é?s? ?? ?st ???tré q?? ???? ? ?? ?????t s???????t?? é?? ,
?t ????s t? r??r?s??t t?? str?? st?t? ??st????????? ???? r???? t?? str?ss ??str???t???? ????r? ???? ?????r?s?? ??t???? t?? str?ss tr??s??rs? ?r???? ? xx (y) ,
(y)e imqx ????? ???r? q ?s t?? ,
? t?? ????s ??t???? t?? ??t??? str?ss ????? ? xx = ?700 ?P? ??? t?? ?r?t???? ????? ? cr = ?250 ?P? ????r ? str?? t??s??? ?? 100 ?P? ??st ?? tr??s??t?? ??t? ????s ???r t?? ????s? ???s ?s ,
? ?????ts ??r? ??t??t?? ?? t?? str?? ???t?r ???r t?? ??t? ???t s???? t?? ???? ?????t ??s?r??? t?? tr??s??rs? ?????ts s??? ?s ????s ?????r??? ???r t?? ??t? ???t ??? t? ????r?ss??? str?ss?s ? yy (y)? ??r?????? ?? tr??s??rs? ????s ??? ?? ??t??t?? ?? t?? ??t? ???t? ????t????? str???s ?? x ??? ?? y ?r? ?????t?? ??? ??? ????st t?? str?ss, ??r t?? ??t? ???t ? 10 ??? ???? ??r ?r?? t?? ??t? ???t ? 1 ?t t?? tr??s??rs? str?ss ?r???? ?s??? ?????????? ??????????? ??t? ? cr = ?10 ?P?? ??? ??? str?ss ?r???? ?s ?? ? ???? ??r?????t ??t? t?? ???s?r????ts? ? ????r ?r?t???? str?ss ????? ?????s t?? ????r?ss??? str?ss ? yy (y) t? ?? tr??t?? ??t?r ??t?????t? ????r? ???? s???s ,
?è?? rés??t??t? ????é ??????????????? à ?ré??r? ??s ?é???ts ?? ????é?té s??s tr??t??? ??? ?????? ? été ?????ré?? P??s? ??s rés??t?ts ?t ???? ?t?t???s ?? ?? ???è?? ??t été ?????sés ?? ?t???s??t ??s ?????r??s??s ???? ??s ??s?r?s ???ér????t???s ?t ????tr?s rés??t?ts ???ér?q??s ??s???????s ?????????????????????? ?t ??????????????? ??s ??r???rs ?? ,