CINXE.COM

<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="390"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "publications.waset.org",cType: 'managed',cRay: '91998be53af99c93',cH: '7EC3k6uENLUOTwOj0wtxOSGjjOkpjOaZUXtm1rHLTDo-1740841462-1.2.1.1-3NXPsyhWm6DTI9iV1W6LWxUMjXar28dsBKmDSI4swCvAdS4P0TCZXw4nLUnuvty3',cUPMDTk: "\/abstracts\/search?q=Lakhdar.%20Khochemane&__cf_chl_tk=ZAclkrPjZpe9NCq26uxca8NGwJrkZ61JI5dkdqhsEYs-1740841462-1.0.1.1-IDU_kQ9HoUVfMORxoo6UplnLmNbyTExFCIoBDF8YvFY",cFPWv: 'b',cITimeS: '1740841462',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=Lakhdar.%20Khochemane&__cf_chl_f_tk=ZAclkrPjZpe9NCq26uxca8NGwJrkZ61JI5dkdqhsEYs-1740841462-1.0.1.1-IDU_kQ9HoUVfMORxoo6UplnLmNbyTExFCIoBDF8YvFY",md: "99XciUPHjVYBKs4M_PpJ0AQyGxiPRwjImBrgorr0Gjk-1740841462-1.2.1.1-EkHZWtB_PHSI5..ckQdHuZMMqPM1gfGEarl2KN1.ISK90rl2L7O.BxqDVKTaLoNoYtiFPO2RVzO7tzT5yPG..LiYpuSn5UAMPLSdBD4XO783EI.gtjtfoiX4KokEY_a1qFB_7UZ3BIa2IcyRvbJPGlrgji3hph.ViP3C0gZ9ZY3G0eP.PaDZ2iFoaSAYSEUPbEp.GMGav3iMTjqKOoPq78Z6abDUMWxGpRAKdQOBR6j6iE8MD.aAXT8RBwGQ5AhsdEWynttrn53tUTXbpSzOXO2HxZmf5QxfvOfPlKEjb5UUnkCyLmaFuVFua8Zwd839bLV9LH2eZGRoQ4tKajNXIhNzwodknEeOLj0TkDBWGlcJKBZ.dms5wAz7SR6w596BL6a0GfP5er.WMp3K1sYRoT7vRTcoVgDh1Spx_6uz7Ui5ai990dALDQxUfxwu573PoR6P_G5jXkIZNNt2hIUlvtR3ma6J8Rm9AAuhEvp3REmK4DlfqZCbjt_7bT1NUS1LQcBFoLA3F7wMqKjQR3mZkNvLbZyCJffWR1Lrnq6WdsMl934uqAygYGAm_yVBDVHheH_duLKYUGZOIlIP.7DS8uBoiSOXfcHORxeycH_76MJYsEN.KU2NasiwGAxGZyL2Im_IQ4jwkEzgWqZ8OJGjX5bGNQWnFruWssGa3I_t2sWE9wfqyqpJJOfJJxK5U6P8ztDguBAUE4YvP..S84dH81c6P9FLDeehOK2zYcjKkvQ74FcD3LH6Xz_J5stfBe7IiJCZzwuChKgALQpW0Su_MHJTSmWhrJ9DJOIj0p516rJ5xVA.UHarZYhkpMIYAAeTeiZV_3VEp61NWZc9KShEvlZyvoCJiPZ62L6l1Li5ql9FIPZqJemFjZhl3cndI1I03CSU7ammFI2yFBIkbqCjqSVRk8cHQ5q.21U8mzC2NI_pT1.CdRxJL1ZzO8rawWQWR8XC013Of2ouBazE0Xmm77JBhqMvscXwNMkopdRhtuMzgdncmfcmp2Qs.crCiiR0yoH7_.iBDGPgnjGmvPg.mHcIM_MQ7eecckoJxIvF0XBu.5UxkjHLdIutcoeRPNwGuBZN1MLvn96zOH8HgPYPT5x.QV3BbBYPm46jqRi6KdxS_nVKLFHkISzWF_X82lS0rDVKO7efZN_SskMnVvSqFufZU8pVNFe06LzP0713y7cafavpN1co4urkK4xCl8Ra4tp5dZ3ONYpwG_Mk932.SEXiZ.VML3be5m.iy3a88CR5sWMRcvE5Ot5w2.ZSCo6pG.JjfcEE.Hemf9na1TXn3mlyIlJ0zuVTI13.DrVBhNw",mdrd: "nUmjrd7tH0MPGhnid5wWIfK5aPuPrp.FUI_dWJ8aMVA-1740841462-1.2.1.1-xYDoPJbe5g7HJoWZ6l78_kk3AgjKXA_xUtECItAMPmGJeRu_cBR2rC4L05qJJZEp8TEn.cG.RO3ZwwvrVghnEZc73Sr5_Z7MSSNoOzeM.B3hd5D6ur0ZGUpuruiZL02q2QskojUnNlDMJi3jQGCpRjF9yghegOfzXrhIQsskGY676U8vVWnSWzBdbBDv6xTWhEZN1mjGbWaWLY4QVzoniMrWb9AfkWZgvge4h0X_3j1LYTGarlJ4.aNYJxxSP_KtvmJVtenUYdow1.hslqa22LCCw3U.Eg1wYdfrDXWREeJVhyE0L1b2wbPxjLitgNvXLlpl6qLhW9JK9wao2iGq_Q8sMjlNJI6BgvMcOd64xa8CJLYVMNMn6DopSFzLXl.Hz18Iom518fvgjrR34NqU.eoUcsbJKC7OP.DExve_BNiKLoKIhFivD0S0_ce.5ib1jBN3pBdL1rIHQ0XScRqsNxH0qk1je3.xulwRYAvxm5DRcPU2zvfNT.atSV48B.bKoMT8Se5RPfJkWv.MVucJL5eC.2KIeq3nZa1Ojl1uqCgjBzKsXmH4kN7xn_k_X38Rsc9cQQRW3kZnEKJcllY6trbEeJLFBCbI2EqWXYfG6hhWOznOgbjzTlQfyfeyV_jf6sEN3TW7smyivIeVqR1g71xI7HZVQIEM0WBd6onKOa9teBQ.9AFPC1JruN41t0dZv5eFpO71.rQGVKekjlqOc_nv5S4XtF2LT9yiQi_jsbO7CcEPOXni_3zPtYYoIK1S8xRf3qRMzS7h72jlzaWiilgRpWlyyEj3aSm8ud4m5pAnlyZA3H1BVFsVnv43cmldKE0UrpiF9x3GPBO2GyAEeT6dHHx5NqhjdMXM7GayAeIMwrW1.ko5Ucfk_eSsBVWrspsGg.XeFC1LArF_yBrQFcBps9RItS0YCGeG7GBwTzhxVibKIt15C9Dij2.m4CA27iylJVh7LZrMzjHXOigdEvkzWiut3IyvG39u4uPWaHzzZYdMeA9Z35iIkVr.zcb_1CoIVYOrudcJoOaly0XjjPIpwKrpSyV0Uso3EufmcMtKqRcnvzF3OB91DDMEmnFdKYrQqbr9DIrVpOEO3yvyaCoguwCczktDb8tUZWedfSSWy_WDKRjiB8G7e6luEleDzwfQfRj3oCkgJhs3SOGIuhvcZji3maYPY5e72HKtjVVSbWPjZPLED1Ij8LjjxzP.hLvrELMb7Y4zaU..uGYPe2_P2.kVkqJx7yMw6rXgEx5w9D03Z_.cdtSs.A1ziVY6x5TaafMUUhgJqod4EXAaHevB7o6nMhsxAdzJVRrrtcBk45xxup1Jklj2yuGNCJBV.GWOsbjNULmi24w6kPyfH2wHzX9gqK7tNz02Ffd57C2Qv_9P5jrCi7c9zLsipr9oLqmqiYzLoalipCnprh3PlzbNnS5dUohDop54NqmW2JIbLIU9Pffs15l06r9f4eUNcsf50cLJ0sZ23x4ZdDXJuZibsmrxGGhJN0UXYu0WyMXM.Q7pV_FrxphtV5j.6pA_qeSw5owwM7oqZFdl6myZrGh66Vy85etouyopWTyivyFAVry9khpRBxICjb8S5Z3a6Wp3gnSknqHmtGEw_e7wq46tNsyv0SKJdX5v_S1em3eJ6.nSFOGEY2GUwQqWqPdv58HlWobV_uBBC7Xq4hlHHJYjc50L.52kZFmsxk1KfwUmRngBDbM7Pb9yoLtEgfuIrg8A9b6vhL2r_jSxm2j7a9GePsjA7RehhgpS3ssnrqLWTqP3oF_KQNQPuhdPM7jDvyrM3NmGVKrrpR7upvusfGCBMOoG2j1VIaPe3QPH.5z4aBcJb3FJ.hXv4CbOcVr0vdnL1LFKGkudbQOUYU0UIlbJyEWywarKtG_ho7rMAYYY2JlUqDT2ZFKoXIonp5xgs5N5xGAtOJiHnxRFlau9ORzCjUkIn5JOPAKRR527SNVWgB4U3vkXOzU80TADfw9D"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91998be53af99c93';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/abstracts\/search?q=Lakhdar.%20Khochemane&__cf_chl_rt_tk=ZAclkrPjZpe9NCq26uxca8NGwJrkZ61JI5dkdqhsEYs-1740841462-1.0.1.1-IDU_kQ9HoUVfMORxoo6UplnLmNbyTExFCIoBDF8YvFY" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>