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="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: '9135ae1b0e19ce71',cH: 'JcXTBcdroziYifeJ17uHAPNdAFndTzSgWKI0z7UyqGA-1739794287-1.2.1.1-BwD5hbmsSd04eCjvY1lEvJSzrqHeSPIHFach_xZRP35xKkc.yzac1UfT4dM87MnF',cUPMDTk: "\/abstracts\/search?q=E.%20Mohamedelhassan&__cf_chl_tk=PNFcAvp15onSyqLgYTCE3YSsyn.gAQRoS_x3QzbzuXA-1739794287-1.0.1.1-nTTjAkgLPgd8LQcFmz36my9EKKpeidxCAocIRGvumEo",cFPWv: 'b',cITimeS: '1739794287',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=E.%20Mohamedelhassan&__cf_chl_f_tk=PNFcAvp15onSyqLgYTCE3YSsyn.gAQRoS_x3QzbzuXA-1739794287-1.0.1.1-nTTjAkgLPgd8LQcFmz36my9EKKpeidxCAocIRGvumEo",md: "g7gH0exnFL.qtNsZSxnXzR_RCLc9rI9wkjE3oydft10-1739794287-1.2.1.1-A6sbESXhdDgMEzR7ht66eNH_1aXCdX3ITanHf80Drxnm_uhq7kx.o5Q73KYIYykuROJoZvgL4WctXvsBS6NHxVBqv8yuCszAH02q5l7LkGY7VA.UomRRTTYSTLsE.N0F2uu_H4J9N66eESODtQzSW7rDIV2hTr_1gepWW6F6nutoBRZvC..GpTK_e4mlrRSo_rJSyycqwSNDeNYump3toxG2jdw8fovgcRfqhwKjTS9q0V_gbQ.hPdme5z44k.IVCkjWoVOZ_gjolgkwsTeHD1WZk09cAiOGqiZTVgZ3_PjS40ex3Wi9wJgNTWvSvuQHBG9O_yIfK524i7RsPtILVi6xq4Axad6m3r_1EpBAL5R0jwkZFtmuGFn6TjBimWrV5Pyy8bQ.pag.zGQKvCHxEnYGkRJB0hKAnja5_PJ2yjxO_6HZgaCSxV8Vg8wSVWNGwBFT8Z9DqsHV04OChvMnhESmpinsOlwpSyu9iD5jiPGMwl0oOmaYgP.MtRbL9bB6rew3SdJTpQd1GFo4HfUrn6XPShJtODNQ011eVgcinKH.Qri48X7rXuyEASyLaitYbFVB4_Dh7pIiTq7DtTCfN4jPewz7o..mzx2MYebheCZLoq4nvctPq6rpkFK28_r.EtOi_47HgNmWN3cxFh9375MXeI9v72kcJQRn2yAXAIPg9UN5_S5_I3iR5fQtOumsFiYdCjIDgl7MwVkK0crZHbxkAxiv2f3GBIU2X4Vdl8kUvoPd_QtTKxqZNgVVvZFo8x1q5PA217BqfHnAukks1pOXdbMUBrVn_yneLnv_xpsWHb7vbXlzmvFDutFOpee.NYuWBc178V7y5pl_PIbJhchmxWnqZ86pnDPwRcfJRQOcRhn18miggb0XBPAZ830asmpgWJPEA2qt8zYcCsx3vWmZciXSp4rgwTCpJ9.XxgxCL6v8OADFY9JckRCbZBrh3y2fUGsJ4i6PuAbpfK5IyKEq6HMonS0hxluwLMJHaBThmNDvoEROLz3WMZufp9K_yMoU.a7RltDPJtxxI3RNwdHG8WdF4fwI7N.ReX.187vZOeIYvrE8_UkZS2Vx0bqyGogCNMImbbEaPMiVdc43abr02SPhCrEAT3M7IYqXoOY3NyZ9vyu1xTQNhdpdv_2WB5JL98Enxg7PNlLM0x0.21CJk3NM50JhLYOhPrzYzEYoWK0rr2rg4Q4AaLdtjEtw7OWj4_00VY0U5AQl4yRfDgqJVkN1FdJ6HVUQXJaRccPzsi_04W4txx157DP.jvy2donWjvbCSylZ9shLM3ae_9vrR8W22.5F4QUf44nGwKXfcMgmZ2WzPvF_2TvuSyfQrDoADzHuAr930fZAF17s9ZLh99AXY69pY3u5dMWKt9Se.7mNDnR8Z5NoUCBGSzbtQLuQLIE.jq19Vi7bkD1qtDFZHvwj57Q_YyUCpjZiP4rk_L97wokdaAiWhmZAnVOvVdf7pvu7VVrfDNLRsV6U0ZzeJrWvsej6egnjUyoo8xsFbrUK98X.i1NuhqE7lrUsU2GuyxwZ2SXfFVSU2kcON4H3r50sTpM2_s.F.rJPSDQjQg2fw93IQnw2BP8nVzx.q1AQCYgbU7gVTPcog3dFP9vQW4PbE9LGcjMgmXXweEtgFgPnpXSbW7BdaWZPZTQOqzsO7FyBSyROyS78Xj8mPBKCmg2Yz5iaU480w_nR3eij2_r1mNc2n7sis2Itx6uqmHeboVTRzLSGU8wvKa5043qgmS6Xyh04yRBFdyWCThi20N1AbDEj.ROEHI_Zd4hK.Cx8s.l51dZtwe_FkEiNl_iYyWlbTNnnpkKqjFLqHu.cHmaQ8Dccz_J3N9YKZV54165rrQKA0Pk_p92B3r03lI2UEoLH3vGFfsbyOEoRGbEnXoj7hAjSTJEp6s3XshwWQcQn8nt1e2FAi8ZEh52ZvYgsvMB4jss1v14aCcREHko",mdrd: "eYx70m.777ecf9PDNxaYkToI9DDQL0NGmo5gB54DVMM-1739794287-1.2.1.1-UjjGW8c0IlO7FAhkzwdS3dLJarOIVHMmQOl6tWxyUjn4I4lGpVTWa.sjAQR9akjnf7fLj9CZ3WCHrbLl_9t4_TgGXCEZ5z6ctveruLMvMwANXsRVdADIyQngpYLqPXoEBOPdEtG8ntTELyGTNlnMJMsbOikaRruxPwwKBnMEgeypswq5OrP0EPna2oBrZ7ji_8ppqOhTu5dvLxsqWoZDqBCBFEA3pH4Qq9S93h.NnlwiyNbJmpBQUYzIT5n_8NNVdSDRhhg8S6f4z3B36tyIza80206BCg4X2OmgzlYZzgjIqn4APA9zIu0g0XoAdZZw0EwmC7vdV4RbZDvIlje5ujszJaqr6nmnwEVrjXd77j_kooAFq6stIHFg4EdVFUVqfImTASZaJhPGZjU13QXg2inDN7VhTByBkO6rHjhOZqSvBmMr31zaksfGScjYzybWLLU6m6pQKjxO0KD1PIZl0GwnTNWozpZlughXBzzixHP_DKPVQ_ASvmVzdOyJANqxwVty7CKUTLct2muI5Lf8A6xsgqQw.hbP1I.GcPK8gvidPf7uJnKyVg6s9fFX1WA_GWon1ibRK8Ty5QRwSV8JZ64V8s1v9K1NsUi8zs_rHM0r4T0m.WcpEH.xu21yaImwZiMcCYJFsWWbr_dXCMd1QfgoaE2Ckq_BxX0kYBmcgloUiLVbv8cVrKnyMl84WIlNUfmpUHH2Ch8Y0Uixe4GYvwMOWi1.RBG9BKYV4recE8DkFTxQXnebgm7c3zgorMClgcL0jae0YNnT2MTmTbOXECqqp2QGzls0ASiABwUlWC8boQ_dh4Tq.NoCh.rdRAiTCSs5k.is_IrbapRw_7vOR86FX7rU_frkVoIYjIG9pnbgWXQNSrnR3lnO5hY4ziInBR2z2FLIuYPnOQCHFiAOirPTodB3xqZcZvxlECFS9CSOYlGJngdaPEKfAv2KUuiAYfrW69zbr7f5wpJ8PHEQoCMJl3hOXVfNokoySVHUYaER2unZ5xydaARPcgSlnEkKmydJEf148oYfjwKtcCpEgumHj_va_mljlayBKpv25oi5Jp6bW3oL6WSgTld_wghHJLRdGhCgW9vLVZmAdGXYiso4qwcumwvYsfjJUzuc9vI.dWvHtFXWRWfpkLo5X6b6WyJNZVsTU5PmOx3y4fy4NE_D6NNojGYWRgy.HerC0nxuVZsEayOE9c7uhfoKygX.Tg5a68ZKZRaqF2JN8.puEaLSHRGvEXdnannG6LSqiRs77BSoO3Dm2Tem9NXPnZJXhtPGkKA1EM7VHGSIhLx_Hshtt0FAPNdBRkVzz9ROYdR7Z9ny5xFChugqb6wvT2WI7PO2SpGDom.iwDVSrlTAmOYSrKWqelLFWqiA3WvS8GDkGJ.6wdN4hlOc6IiwEBYC1EQpWhgC2CfDQvoFw_.v_jcyQdJEhuCM7oeg3Nsjh1aS7DHOpZ42Hay8_0I1Mva3H1JydZch6ACekPJk165HwqzSKb1HkI9plTDCaSau1oRfdIq4NdunrIQRaOcrP1FTY0LLffBwdJ5BWn9TPtpQpX9PXKr2H6AOAfYHI8xrSDyTmvTuCvR4Big_.UEL1LOtT1rFee0_iCXmQc9gb8W1DIxQwd6aXxVHyJwuIo15CFPjBlB5Wnw6b1VBLfyGvL6Dktkkw3ySzSK6dIUO.v1o.f.PynHi5DH.tNJbQCeoayXfzx6MyU3mtr5Ha19kld_T1hru4TqzUvJ6AAdBvlcsnfJi.V46KuBH9ud_JOhVdzrUo1JbdsHUHGOJIVDv6Sp8lVX6xQ7wKRMsA2rI_vCbwNpzjGxNqvgjMw1YeTKj2Svjy3GRiXdLh182wvFTFK8Vn9lz4T8FxOm97LowPLg.hN2Wh8.CxiyE3T.bxGO1khOeXNPw.7NgWsZOoMmScaJPPRIsESO9LVOBeVSMUmGyYC18YZyz2iALUzhqB7pe2vyKdqtOEmXhlZi1CwQ8_kZMHQVEnLp5TV.GZeVl5580Sw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9135ae1b0e19ce71';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=E.%20Mohamedelhassan&__cf_chl_rt_tk=PNFcAvp15onSyqLgYTCE3YSsyn.gAQRoS_x3QzbzuXA-1739794287-1.0.1.1-nTTjAkgLPgd8LQcFmz36my9EKKpeidxCAocIRGvumEo" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>