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,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMiIgaGVpZ2h0PSIzMiIgZmlsbD0ibm9uZSI+PHBhdGggZmlsbD0iI0IyMEYwMyIgZD0iTTE2IDNhMTMgMTMgMCAxIDAgMTMgMTNBMTMuMDE1IDEzLjAxNSAwIDAgMCAxNiAzbTAgMjRhMTEgMTEgMCAxIDEgMTEtMTEgMTEuMDEgMTEuMDEgMCAwIDEtMTEgMTEiLz48cGF0aCBmaWxsPSIjQjIwRjAzIiBkPSJNMTcuMDM4IDE4LjYxNUgxNC44N0wxNC41NjMgOS41aDIuNzgzem0tMS4wODQgMS40MjdxLjY2IDAgMS4wNTcuMzg4LjQwNy4zODkuNDA3Ljk5NCAwIC41OTYtLjQwNy45ODQtLjM5Ny4zOS0xLjA1Ny4zODktLjY1IDAtMS4wNTYtLjM4OS0uMzk4LS4zODktLjM5OC0uOTg0IDAtLjU5Ny4zOTgtLjk4NS40MDYtLjM5NyAxLjA1Ni0uMzk3Ii8+PC9zdmc+);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: '913535a38c98f93c',cH: 'Ho81ory_8mqzIW.gpWVO_4uvgEOKcHXOZXaZNLYcCI0-1739789353-1.2.1.1-vl6O2QUbqG6G4wmHL6dI5XVVPD5sGp.mPZcCesOknO91F4Hhpr_HAogxj7ZD2VK8',cUPMDTk: "\/abstracts\/search?q=M.%20A.%20Hgazy&__cf_chl_tk=SOVq4grhZuAdEaRj9POQ1uExO5nBNclZ86QS7kxqzFY-1739789353-1.0.1.1-XyELujxObLwwSOpY.bMMClUm2bf5ZU31Wc9G1xem_TI",cFPWv: 'b',cITimeS: '1739789353',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=M.%20A.%20Hgazy&__cf_chl_f_tk=SOVq4grhZuAdEaRj9POQ1uExO5nBNclZ86QS7kxqzFY-1739789353-1.0.1.1-XyELujxObLwwSOpY.bMMClUm2bf5ZU31Wc9G1xem_TI",md: "LxMIXocFc57fvkUKfQ09M_Vo0UwQ6wcaZoEUzMaIv9g-1739789353-1.2.1.1-DReNngSoF6xlGcj9BFnXXxSysp4PGAu6wVJM1tUW02bXB92gIqwyAY67y6NAlkHL0UU.nSzKy2LXlJDbXV8l.ycC4UEKa.5KbL7csFpRjbC3YGGMGBtqUyT.d.VDK0ZiVHU3BYVQG0gM0sUBlO6zlb76Ics3Vz8e2.slcIC8ulPIZqBNXIGuNWg9fhq7I3MpLidQpCK88H1chZ93zszQisACSvR2JC7mbVsSthBkQA6JlY23wZQFxp5ZZ84qQo387cwVqUnHpH_yoL.7rkZgJgD3cOvob8Sns5eqvCGkGPwaP3YwZUDxdYv.PT0igGn_3lOtao4qa6JuY3igDSxAka7ptwpLEZdc3lPORn4kNspo0RlWZ5HDOuWEBZ2MMl2ageW8mIeJF.GR_XQZ0hGVC_dEqczfuaiJeZZxleprbumlF1KIoBpoY.L.Pw72Jdpg3jJ.kzvk23tyYm.qPZ9eWCtm_bSFzcHk8VRDmXc4gtxyWLkIXem87dWpN9tJK7dbMZQ6NVtxtd.QN0swvqiSLSI.X0Lnb6fpeCY.fjuVxb5TgHijUJuR.oP_9M1_PeKUgN3J67YNGIXLE6ZKoWyVz8ndzb3E2d7xWZ4zxJLZWdiG6ustUzgj6zViniObtJ4I0pRI06wJZzIbX5sHlLBYf6gs0qu9.hNscmflUcypgaImgIZuXNl9Yrn3Ts2da1q0KSG0lSpaltit0ghdO5UQVnNiFua42rbicOySRuD2sE_b99Gejue5lV4f_KoGULrp4x1tl4c9G2QNetAEPriKu4vYNiXqT5_7ncMadkaFi_aLp.uqU.Krq_ywklIp2zcKIDo7EOzNrr1cYt7YHukX3JyN3prDvQAcDoXdDA2S1J2py0Xw10ysdKezp_LBjHyg_YrIBPIencG60TWQhlWsi4qw2QAld6XgPm1zU2710YaSKLwHF9FwbRS8Iys6_7xjXz4wuFo1IOiwwLb6qlH28UWZGgyVqoFitL752MeR.JQo4YeZ_fXaiX8rL8i3P83upaEhKfLo8sFOm42.RwLcPv0wxysAKBiEyBkeZ0N_TkkdYtypJ5Ze3ww1D1nVCF.OhesiofiGXABmRC6.K1aZWFOtvV6aiprW7Q1fqSIZnjb6NZKFbneUMmCxl0lGPtEu8GpkPw8Bl3070Njvkih8GLaJ78E4qyOllFgGrAyIsvOVUvO7wgBWee21_qMjG3nUx2UA2jyznQKzaeDOzdadCBAgKRY12EplDGS1IUup07SITTGo..Z83pWNTvVrGEq8aIRb6dkE4eaX6SMXK0eBsmeZTL9T5.ymeHXklvf9VYWpRr88FDnN8KrFuxQloHByjt0Etw_1Z7gn1Gu_RQmokR9WRGqRY7ILbwwg2JNpc9VXlONs6yeXKrbbi.5zadDULt0EdqkNtrg0Qb23NynXXqz.WCM7RbLD6mQFVurbZBu9TpJ8gSQmY8SKrFWBOsOGwJuQryESf.RuxFroZWAFzeCln9yeaqsZWxfivu6jyIqN2nRT5iXWUwQfIAVQS4shmtSMMQYU1pKq3d_5j7OJrQTGIfm_uipz4SFrKIbxPcqFJCpXoGV1Kn6UYUe4AZEALDD7uhb6dNAyWtPt49b8vdAhmKdxnNLNdoZyLxIMcc5XC2FaiR2F0fXpZftYwJbHOjypKMTZxPH4xXxKhJkgcTK390BGmV4oN0O5OQ_iRKALbMHHh_YuXvtWnTqwbEHC6M0U68Ei2AINi84qKodU4ffERWmrGsuLG9xnxoltkR_pZIDdPeHqLY9VW8qIHyOq1GHnq4f2AVeoGY.RqosGRRUUqWn.iKjEieLAlhxGlrSmd0QwOPGXQeRSAX0rN5BERbiSLm8en.wjj3s9uTrJpEb5BBSFjg6bZ1.osANqo_BmXkrDbRXpVyrZV2B4P5drbP6NbWcU.qnR74kqMA3doOeYoNoT0w.KMt.nF0B_Ogw",mdrd: "0T234EtirjZCq2yQgrzSOXW46p4Gc4B594Tb7Zj5J6U-1739789353-1.2.1.1-2csShSSNtQ4zTiLVW86BU6kvJhun4viejvf12dQcAyzjDqudatd_LWm6QxDqNbnjNf5YmjEShysnu1dngqoH7g7dCNjphfuAvbZsL8pdWtCdZ8JlZyQe5hO7eR.GHIV.evCLdx9UWVo9SKKZKXv17gdymT_gsn_qAQK_do7yABvvekJttJs2n.tbs2je8vjm231IMYAVQ1gpV0wdZ3r39VM7nLFSFk17_FyDbnrOYtwad.5pFFoAiHjUNrNPrpPJcerq_SRsgy34aaVhLzoSyy7LeIBHJ4N4akNrpKnqfdTnGrQNTzNHhEqVJwPqM0Vaf.sJ8WtxbbhAEtA_zpMsjLBrKUaDJ8t2EMzhiV6F9QKmnJzkSCFdLzM7i7BkTvRvw_iA9d1o61Py7KsDgJBkSWmrb4Jthg97UMUyENhk8PeBAL36VXbZ9wwPPheHtSP4f_l849p73eIpSHSCuEXWuVPKyKoe3U5t5eGtBbxq5EzE7HfZ0iYQW4t2WUBSu4baUwsH.Z9L7vfmC8yhBzzgtLhrpESRcou.Yt8YIPsh7zeuVLPMRDWfnXN1EXcMDpd44bNynROq.TEUEBeFUiXLIPn0NgoYGOe6_fP_6bcd_N5jUkcODF8CQXmbk1T9gI5lWg3i_GCNUYU5bMthqrGYcKyT.D2NdVLpS3BXmQMcEM6BJYThi0xUhWa7D0l8SzKrU2UetHSeFf_lDlOHk7CVd_qKW6xk753uhlm15DfNLrITqxonW_WxnGIJAL1ZIv_MjrBjJNEGL.GByCRGAySYg0jNNNDbfrk.uE290GJ5cbwIigowTx7UWzTdK0UMA3fJkbppcTilwi7D6TI0OZImIkeI8jv2VlUF2OGD.nr7hNreyLQ5TbMH7hstOM5vqWDSDEAzUY2CDscEXrPLzuTjb3Jao3_lqNv5HehftDjQnVd2NCmwrE.Z8S257GpDXlw4r9ukw6VKpgc49IqvK97OYx1gbHWqPyL3mBNs4YQ50cn5LtHZWVEenfypfKqtpZKjtqSTHSgFgGcApBKvYfCqOsLB4KrDyHAVKHj9eofmpBI4PapquKXunSWTtXdUvuU31kSW95OENAJrgeP_ftLzYWB0pxdNNfufxyOuRkQ2NqkOLDZcRhVoTFH._5gcBufuDxEs7FHq9_40C9_K5kNh2T9T4hpzGrsdtknTP..ia6ZGjGDqetnqC.QhnH_2pvyu2xk6zlw.UYWjHZWbnni80sieLXTAuIVxcMozkgk4zjLyHFTulu5F9GnaQwYet3HKvnqvDNwU3cNXD3dS4HRVoEH.HAd3cPfFrfIUUSooPm.BoflxA9OF298sb7gEpX3_6STYEsD5ng7.Z6x73pJVF6Bd9nGnF.PANVZcClTCty3Vr3WnUMVD5OmssTm6wsFc7MyZPl.8zajbmJFFHvZTOiDzC7Jd6FBhQzE_UM2sow5dq1edtFVIbgf_7wktyqEMN3v1G5KcirO4xmWVA7XbflsNd0yJTr1oxubhE9B8OZJQNLsz.Uui5IGdwEHDoT.YQDJlOg8B7QyCRMlUP.X5WW_2roeLqn2aFvAplL6rJGALSlaWDPeW0W_RYiy8JETKOoDJsE1EY7F7oH3zTNWJnCdxgtUr_dh3zlK2srTgm8_0J.UokGmLvoCN8Hl_jlrFaMHXLleC65dib.aj5fJ9zK_bMeLq5XdUwU5k6jDM8ezpSsSb7g1KIsWcHhJE7vaWsLOHMX5uPUOxjdx2JlHnyX.wim671S8zuVfhK3GodimqSZs_ug6QnVLUN8eYR1wZWmNmXImSmu7RzuGvEsTVFXZ1Rm0eMtA.iMB_d_vb8Hyyk1ZJRy1NmCq5oqpZZE7Z8.IZRzyO.VA0mWpB4RpsdK0vEm1mXeVLvU54di4enEhVbabQx.fIsUiABaZ1_aI1JZM9HSsczh9IF3zUe5rzGOBqLUCUD7a6s_Ovuy5vHs17.xhQTzM5CXVu2QQr1SXSuKIK2w_ZtbvUcDZTmR5QnA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=913535a38c98f93c';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=M.%20A.%20Hgazy&__cf_chl_rt_tk=SOVq4grhZuAdEaRj9POQ1uExO5nBNclZ86QS7kxqzFY-1739789353-1.0.1.1-XyELujxObLwwSOpY.bMMClUm2bf5ZU31Wc9G1xem_TI" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>