CINXE.COM
Just a moment...
<!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="120"></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: 'non-interactive',cRay: '9179b18e69e74d27',cH: '3K474sbgPot_hec1M0rIpyIQzcl.asGdqKPs1u5MsEQ-1740507460-1.2.1.1-nVOSRy4BX3gtoIzLDlThjFZk5gDJtOHWNTbzDosAPinS8wwkKPQ0f5S3nnVzhVcW',cUPMDTk: "\/abstracts\/search?q=Bellaouar%20Ahmed&__cf_chl_tk=Edfd970mGvexuYkNx9DoF4AmNaK5_OZVZd7HxY.qUTk-1740507460-1.0.1.1-R4fQ49v5ib5G0T0kLvpvf2mD1n3z3AKtKk95xzSyujI",cFPWv: 'b',cITimeS: '1740507460',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=Bellaouar%20Ahmed&__cf_chl_f_tk=Edfd970mGvexuYkNx9DoF4AmNaK5_OZVZd7HxY.qUTk-1740507460-1.0.1.1-R4fQ49v5ib5G0T0kLvpvf2mD1n3z3AKtKk95xzSyujI",md: "Ts7sqUKOm5hcKkUaRr2mkcuQYbEfrBR7d5YfwawKc5A-1740507460-1.2.1.1-for_ElbpeEQzqN.wcTDy0v08txmL5yTEWVPr0vbNV2Wx_2b1KsbpXp4F9HU0cHuWY16nwalaT4_Ja3NX0PFoYdMplKutdynlUL8pyzpaIn3cJT1.kR63rOC3LtNasdaxIX8XjDrHOGotNvvKeCgHyT9PSb9erYWVWDtywXoDpCAnOp4p37ELEsab.dhs9HKdPxPQb0ER_aVh22b8bxGUSl8T_HEljRTXhOVQtvJhPXWtfwXULikAp14y1bj8kwX06w2j5zxZtYu6AsmfWCI6NfrZEYGb6xWkKZMUorB0GopgAUHi4eGr9kAyFADQLFN4vdvgPiiP9edZMyoMgcqqwiv0eeLt1Dlz3Qe40E5xSv3_EuY4gcqQWBq.5_XVSAdN5K_7xusf_hctkxunGhSLN9merBcXw3Vp.4KzZBSyrf3.3P9eoR2x0KBiNBqzLMm2D7P82Br6vF5aN11lrUF7YMa1dpyQTPKYnB30f8Z_7pXX4n6RFVBSjotUeP2ZEUpNDGOVdtvKkvALiYMCXe4HmaCRTQSvhYkDwuVyVftrigDNpjy0PPRsdBqVjB5G02BuQPlpVoTb4HLHaUDtiflbqHI2AGSGmEHsstzruKo1_I3vo61kgUhNpwtZnZ2JvZ94Ic2R64xPCMN6akrvFWkDhSUSNt0OX40b9H6ehO4GHooClpU74V142HwHHeQAoH4lW6Y73_Ce0z.p.WVaSddkStHNrQcshM3F9hhAKlUlxtgX0jCn0qTOdnPdObLC48.SZH26VMPdzsroQfHgmQZG6sOBLlIQC41LES4s_pU9DmGvhLnm8m4Ubd6v9dSEcDPciOxwvcl1GYcHIxSRsx8LcBNhBIZZFkm.rPQKK2YrZTsACzg704pEgJ9z4Ax4SANs7ZRcE4uI_eilw7EfxTwb.rJAOIhh8JG7Yud97kULrVteAI5K_LfVj4ANe7.Mrp9NEh5hRkfJGKCAQ24QRRTLHoDnNUd7B0FgMTB9T5TKBPkhOD1E5bv2sYHXeWdnKGEPuWlHoah1RBK6_lZdwexBQ.ZJ8HL.t4ylKKTjw1lJuVlwJMVujUJSkg.SFQuxUwsc6azNGSLw1eK1uwKw.iRPuV2j.3D1s.1Axw7FwuS5aWHKMvAV5sVmcgryJTGXR9RqBp28svo7AP4DIDPfPj5M6yVyCUynkiNDglgRDqKkPYlXWF2qLcAXZlejI5yQg6y_gLimfAx4j4jkve6vrtaKroo8oMwJF8N8_kNx4EO.bb0vsyluBLpjjXfXztGFAM0qY_t7pnd10c5X8iKDcUBSGB.tO52lK6o8RnRDBpVmAzstHsnU1Z6lpvnlNTuVNbxFZ7qfOX6gKEwu6ZERlFxR273NXX6FulZfHhB50Mep71aDLL8COOGpfZkD950i3LLl6JDSMJ_M4QmxoweYziBFzKDmbl1a16tcOJO9fMJpcVpGjbfoIVMpn4Aj35dzWAr.5Fcagj8fwNSdjXgci2scB6Q9KImU9vum22nE7nr6HOoh3y4NDed7mCQ2vR2waPzDSKxEtEyi.HfTmkxnhOwE_ozS6oDisAVBAx4PvbCw2CwOHtmystrAc7KrDqDUxR11.LWmFQlWz4p5cY4btRwURHYeh0YgmkRcvJ5BvoG3ZjAdWIfeNlz1MKRnB9KoEdSDe7UiCSxC6t.YLwVuRySQRAAZ4BS3njH89Z7DfTOevFI8ksiGnHMblGwSh.cSxePgziCdRLJsyqeR2wuVg.Fx4gj7d8cGeWY3GapZ8UpJL6hJUX_P9AF94KmLYx_4oP37JGNJ87fcg5JM1KR60gI4wpMBIiEVaI9ch3vOcIwCjv39R2EKFDuah6FsX8EooetofLplaXdvVWDFC4OYfxEc_eKzx0jdPN0XPjEp1l30wFT.p.be7GF4.6ds97AweJIl6AaoSvQgDzhj0wQdtRToT4.FHETmbbr03MOX4yYv6oQ",mdrd: "GS3_ZfabNYec8YORFfIFk99s.LPtMV0lks3hlAdynug-1740507460-1.2.1.1-oe75ju0oFgJwTCZM6J.7VlsG1qMSfIrouhQlsgKLLPO1.1.ev2vsVVxufdGRWOlwuU_hVIqkOtzuhndGzYCygwxSaQIle5y9tIwShWrzv.ZRSviACnbTyY.YO9PdCcJJrN4qr0neuPWui6zhqqdBf42r9JTkuOzYFnHIMpF48ruuo0J5yOXvbM__OAYWnTVoxWGIWGDVFn5piFgT8v1Us.UAL48BpeVTGIrSzdQEDRQlJT7BLmRj6puXmXhpEByNYo0zGD2baxMCxMfgzXUZF97_VBTIR0ON403Hy28_YYfr2RY4A5RSeUIKTKr2A9.WNp_4i_sfLT.QuhxRT.067VRG8str619Z4hJ1.NvHLJnpdmhMqaxwmgH82P..nzJltpakmG_c6R82vACOvOe3qxCHDf1WnH79l3ZFAbc8nV_xZQfFcTaM14xWLN5vxmgNvV4Ybc7HYJd_z6zC6J1zhEtl4fxdxMHmcFokwmiKYrBimxCDHC3d_9zoQptS0DgAcbYh.S.kwinUVXBXY_uPJ.SBFMuAiT.98jRpwRNZQzwLlmfisV_wR81IDM.r1hsDzPB7i4vDQC8GWNhU7DihfxPyfdkYbAC0Z4Tv2UuTZZlrt4bzG3IS_OK6bbqphVVV2cE.0.VXuJODwE4yoxxwfrgY5vZ.pTPDHzNCn.g0uWLp1y50QA7C5uG0CkoeO2wUfU.C6TuXi1G.ewXOawuUqm2W_wGijuGcu0lxSkMh23dRnbdntWz0fwWbVyTfq95NdtUYvwHNHd0wT03mrU0cgxhTqRuM3CI82gekcrUm_7vdYuyp_BfkZdasHffHKnYx1vucMx7uIi9aKc2BHAuxxAPMe0AmpINY0cPEE0vMjjF_4UjjhfPqoCvQeXxnJ4dQ9Z3lkD1zTMVWOb0XfNwldK9.GOLKvinlgj4o98F0iSxpOc5a1KOJolbq8wehRvjyB5yc7d2J7V9WnjGWEI7r_b3nKObyMglcjbnl0wxuJ0kjMkjhJzM5Nkk2C9nVw1sURWP9l6xtQMj97kBV_zf0Nlc9sQ2mFwDzM.w0wDeGK_jVwDWdDMHzE5geQg0ZqfoWeMuWLtDGN47Zi9uqhDaOA0ujxPrjpJ6BkEEWXd_giunoYza79p5Fxid_n99ecxim97bHEUArUsojKgyjLD4GMW53gKp1AfGslSpJ53FA00t1Xsvr_Kl2KlobmHSx_Ef8dSDfIwBZc7tiWAAlGS2VyJtYiOiSTJFsn7_gx18vWq5HG95ErPIexxao2zMg4X0RQxLWdkPAkdJjgNcNRdmZino9MDYUdpTA.ezmhnyxoSpGA8bMZ7PR2tn4QcfOaHJAB3TL5ObSc0Yh7FVazTqJoQjOtrp2iBZ07zdb0TDWbxNBuqqqXMVj0qhcsrfr1TlXb4Re99fK_fvEijPXaEx6RH3ZpoKyKKfVyOFog7np_QqYX1NMIqnisPoC1ZaNQrn_.oSzisHxhSeSIpLayw5FTIWM8iZGvipwZbYmOVLqvz9e0F6bcxkhKFpBUI.89JqYDnXqr6r1hInzy8spR9oaljKi1x_xcIeSsnvPnwjLvaXcZ1p_3se4odc77vO1AuGXzP0IL8wbF7dcST4kFX7TD8_ehEMLZ_yaFMQDs6lPo5oAuf8GI1fdh72GngptAoyeZN5tWt_DlzVy7dib7RB699RYzps6JgjlZ1wabVyZCsid6aZglXAsh60Eo7OD5h.qQpeaZLGvXeNqjG5RYs8.ifRtWTb4KoDrzKGGBfYb74ATorQtlRcLhdjetM24nRs17q.pgni.TYQ3ZHM_ydc31OuPNyU10I0MoVf8.ElU1OYVO5k0dEgpPHsHcdpPxqZPBX5MFv1UgGFk6QAw41tULtq3w2xxoUmVWuR5GuT2qonn4WizBrKgpofJVQztCBFy0wx0ORl35LfQQ3AUmKvNW.HDm5nrOxo3ZA7rf1juLJzVwdcwAiNFvT51wTWyL5b."};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9179b18e69e74d27';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=Bellaouar%20Ahmed&__cf_chl_rt_tk=Edfd970mGvexuYkNx9DoF4AmNaK5_OZVZd7HxY.qUTk-1740507460-1.0.1.1-R4fQ49v5ib5G0T0kLvpvf2mD1n3z3AKtKk95xzSyujI" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>