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: '9135ac7168d8ce0a',cH: 'MktTdeIodqaSvU4zb7qOrpILTe06v1El8Ry367XkyBY-1739794219-1.2.1.1-s2tIDDw7bUR5KkDP48NczUwWqRYLprEEHt92WMcHHQV0wImIIg5GdghZTneKLfPE',cUPMDTk: "\/abstracts\/search?q=Ehab%20S.%20Abdelhamid&page=2&__cf_chl_tk=e3Ddr9YKPFkSVDr9MOaCWbVMwq4aVEM3.lUqa_W4bRE-1739794219-1.0.1.1-eRY6pjHW2MybaeUgJ2Zng8jW2KFG0MKmsP0Vz_hnXWw",cFPWv: 'b',cITimeS: '1739794219',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=Ehab%20S.%20Abdelhamid&page=2&__cf_chl_f_tk=e3Ddr9YKPFkSVDr9MOaCWbVMwq4aVEM3.lUqa_W4bRE-1739794219-1.0.1.1-eRY6pjHW2MybaeUgJ2Zng8jW2KFG0MKmsP0Vz_hnXWw",md: "M6NIR8NnXFAzbb9OSui5RFUHqKaf03neFhkLU0qyjcM-1739794219-1.2.1.1-c742v8ppFa1UkBgLopE1SjZjce0Qjz.fw9EWnCI75kA2xPunF1Pdt44LPCVM79vIB.2OZ16Z.gPyFZALHv35YZxx1xLEhmSMg40A8qZ1BsQo3C4vE3lp_9GgTW6PwJrZhIV.M0wWYwfJd5cAGXuhhYiTVp2TYBiz1A_83iKG90L.dThOc9wug_Mnsuq.ytNoswQRDMRLz6ZKQzFtouWk42ToFA_wHrrx1LRG3TgjV_YXgk0PIVsvSb2TAZfKEcHsMldCwQ4OgIbKt3NV2.bzK7JajFE5SCRk.TS7w1M3bn9n1cghZCalhswN3jPrKTTPYlUdzFfafVGaK61rTObu5q1ZKZ5CWqtlI8Z.bzowFIpeXTtJZ2BYZXGBG7OF28_hLpaJc8ec8IVFF9Dm8ZkCMFldtALauBLNEwtaT7AFdBlbfK7pR9dfrD8eHmjrDaLngjEuC3UMWarOUltyQW1SBx.Joxj6MNpMfed.cJsLfaezfQjQLglN4HQqs3nQqQSiLbycybG1lUDd1UVONz_J6pluBPZoJzy_Zr5VuZd.GaZ8u3RBk2Zy7xwHNoluuma0HyS1_5Ad0jenhRiBHgxhA.6PWtmSFxLAL4IIduLlATH6BcC2yJVw_ccLkoEtB_SkqaToQXQXaWHtD0KTD0FixryU71PmuGy3_FUrgAzk4Sq5TassIpgl1xtaA.XIfICgemFV79cbLk_P0pYe7r5pCUh1adZVBFTJlfYrrOQB3sb0pbsnVSPTxGc.fyj8ONYkO7kdiA0dUenn3jTXuSDrP9ncAcIdYCF.G1wfO4cP0fkSqH8YlkERm91Lu9Cyy85f9d.6Rk.YijoFM6pXcB8KyVnsdAX2A0xizXVVqXG8RWIIoYBcF0OlOt_u6LceN0VBmmwl9we77sAtoFpJbUmfGasG8MWa31a4CHdqbW_hfw5LgaWmU6vT64hlrubSHsbQj7vwEuIlzZdVP.4phJNQsfdSBF1wJLgGtus8eJ38YSnNRtqozm_qIoHjOiH_7v0sU5pIS0TNs9SxRCKBIFhilk5GR6toFt9aD6R1PO77qCAl2J_jNfDK15_aUeAQnz8oQ.izyPVpeumWa6Gq0RiFBovOTGUO0qw1FkF_nEaKYi1ORzemtjd0JEUsE9L2IsmDFNm5rUA_J41oO1NP2.y0EN.lEeNpcRlHVPquB0s3658ZzrkPZuZllcKGylegRBMr.2NVOA6SnR6j5DpaOncLtEv29fhFcwqARyCj70JIifP4.6ZV7AbM.KZu_GqVl7uxNXgKqK_jvozn1iKGEUoCHo6bHNQEvsFhZAwJFO8jv4jfV7jM26DQ.NMS2cTYC.v0u0QdXG_aRnel1KLRL5VVJ5yWRjMNatnJ1zj4dCGy2fgvFLouRN7at7QCo7HGbdCY7.bbFSjqSaIEes5Qasu3q0Rfalk42F3f4L1AZiwvLrXjrZQ_h4iZafjlaKiPs5PnGe4OKQhxp5QjjTW.kq8G57EDl853LdeZAb0v8hixB5kRE1zwhyFGnEtz7uKpORDlOlJx3O2nyCwm_NxO4E.WExs7IuGBFTL0585YQe25s0kTmKRkjuqdTEIYpYcnepGlp6NeN.wRMZ2WPBWB_ysC9GVXiY3yOdCmKghUsEzCpPmwqtfwwAokXLh6HluNRw3BzbfLjoOPt_nVMmIwHtAN4F_YRnKOQlkctcUyA6KvV1VToL7kfztpR15LZil5s6MWjB9yKkmHY7T13D1Gaj0h5HIeljjPAuoGVpRzgL1FWK_usbEUPww8RhYsf8WAEaMEs1HsMBPQvmCv0c2ZYwN6kE1.BPGUxcu2OxiiU5sdBed74mX.sdZquH.YQqyxhgmvOaxkqkZKGD5Io3k1Bt4G.8I.HGIRwClUfls9uD0NKtBNDnMPmuzq_ew0rjjwuVlb2ThntmpslzsRaTaOe6B5FPawGK8DzXOVOeCwdS8xG8sMA6x1bXHCTDD6NmYVIuTC3XmlWqLX2CztfCHAT5hY8w",mdrd: "6aMc9bYZIpkZRc0VWZ3iEtxWWeKfTzfT9.8xn5xt_8o-1739794219-1.2.1.1-Qpg5HPhFCssFcyCg1o4NM5QVUuLIkFrhNfoxF0yDGB4rnJCXd73FljQohnR9dH6bIX_1B54bWgDlfeKKmNPre0cP3taesfTMy4S28XG64_CkaqVpS23WTuUO6Mns6SnBc7ycJbhWsAq23iPNNkid_YK8SaL7pwAu1p1_FeT0Nl3jKvqrOvgX2RiJR8JM.troN2uO6DT5QZ2pwb83ILnjxQXyEal2jqw7yvT0e8_US7zBrelaBVeFC4ZS_ZTr4RUgtesaG4olZ7pOXN93zn3_pafXl_UvA18CTQus8AG__sV0f3ZD9kuKxOfoKjJLldeGjJB4Yx6FerE6hAxoCFe6LNgjr5IGARDGdMUEGZL4oY0TkHg63zFTxonUwJaa_6Ifqa7ijaNZEjc37CBBXUS34WpoMfkMUgbWciuRoAflD2Wo21SRYNbHO50UqbuP_ZB5ILBjhW54ZnTbTlVSiorN7RelvodvTrksrt_Ky935Uthj1w0SNGTA98AEmvQtno6SGkOSMWA0KjW7Bu77H83jUYzxf.HSAdcQR55KPKPhgDGDwEFBCUCFUS1GCUP5evryTkI5Kla75_MC2cjBG7UymMHbeUvbB0TQrDxfacLh0DpeKhZj.6Ns4V1hfcLFYCQuqIkFv4whdXvWPDDN99jZNZq9Nz6ZH9S7jd.TXt0DKYnmwY49Knj3Hl_Vv9Ks9BMtXC1fQF4HN9INyqBCH4GPRVSsHBMDXih0mYNB7IDCkre43fm74oyXA09S8dfBRASjG_vgES3wpC.nzZTilU69PbfQdMg1z3tAisGn0RxlXZSzRfhZ42QDsU2R18b9X5NFEt2RPPw36txbwZAoUm_S9Xst7_9Z3hdmmbKA9zAdpamVABf4Bt6Lh6NuSgSG0cHrFMu2IsrvA24bbyAs3Q0dzp6XhjE2CsPMhe7FxDhZ3BXYaSjAtN_WsHixGQQLjeAlRsdpKPkNzB8YjZb8sw_vzqpu7FkjKQCljjHf2.bMI6L9CLERrU3ENeOS8cQtXXXnh4H6nrfeYiBV1TrkGz_oMoxIXaQjYPLNTgKvEpYRSLEs6_5Yr.MxLjB9VURqM0ErOZi6vS3RV8CnwIP31X4qBmpdZdIeKdbOGQKzTVecewvtC5NGAffx0WvJ9xMbeD3u_NKCExxIEGrSBz_L7r0DWO4EptGpBS7nE3UQmmtgupfwenqd7mTvvg.qihDqMVF6YX4CD39Em0O6H7T5Lxa0jogYF9kAGPWOAJvydSDDwBxyZFsqW3IIlpv1Fn.3yvjDpAxyO9q1pJEIYzRt3obepVoKuZbM6nXJH0ff3l7FLRFW_zF1iD1IY0mbSA7WHtvDIsN3ZmsNL9IHFC1wnydO.kNEuu0opWPD02eZO8hSN_GfTAjGZTTBmsmFEYy.BynzF06j_ytxKavNCxtKJTcVAv0q9UcFQhKOGTEu7TcAJA6YZ2SEbZWpwW9RRJU06oIGGfya.WbY21yclfnwB11ELmMHN68HrGxq6nVH3T_CdXebaNsPopt34tqJTmmThlbZK48WihEL.ZOBE9KmMZdn4hvfkP5cRVXEWS51HhC3yUw3ryRDxtJY5Aq._A_MSGRYa4lDre7r8Hr00MuqSbD_yumG4776vRI0T5o4PmbfTHk5TYV3EOVK4YMTdRz6cDb_3SVLnWlAuQkiJMWbIH7_ZSXFC0A_qb2bolQin9RpE_mL1yrr28OjGXF4JFvHQDEBkx6mGcwQEGfiku38dYCEYCtrRPl1OGbP3IJPggitlcfMjtfyVmhP_cCUQEIbdKaVtNw83JImZQJoYRtUj6qhuU.YCXXuZ75dKZErEPamDHB7.dYxCWz5lv6v1pBgJXSPz_crnMayCDdIc5ULdjSujwzSQSw3kdja8jXF_cbnqO5yuBUQ9GZUhuUmtDWHLZ9uirlOtJ2rbA9xOXuMpxwRI5ZCnsP5annOBaTwMsMgZ7jJ2B2yw9jZ_mPlzEgeN2Ec"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9135ac7168d8ce0a';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=Ehab%20S.%20Abdelhamid&page=2&__cf_chl_rt_tk=e3Ddr9YKPFkSVDr9MOaCWbVMwq4aVEM3.lUqa_W4bRE-1739794219-1.0.1.1-eRY6pjHW2MybaeUgJ2Zng8jW2KFG0MKmsP0Vz_hnXWw" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>