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: '913608755f6ace11',cH: 'e9FBEsQgvIDdVXJoa06Tv3W.T26rvkBgTpiNPfGfkns-1739797988-1.2.1.1-z3uza7ZvP8OCCrkxDbrDcLjZpBGPZyyf1fTeF4bttKHS4Q9ZsWeUgyTt3kpCZEXF',cUPMDTk: "\/abstracts\/search?q=H.%20I.%20Sheikh&page=4&__cf_chl_tk=zCkuuvYF1BtfupozfEZx05yhZoaiOdrH_ytCtj8R0Mo-1739797988-1.0.1.1-xP1CzcGCWiAxZYGFaFRBNUmRKUBd9YQDvnSRF6gOoHo",cFPWv: 'b',cITimeS: '1739797988',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=H.%20I.%20Sheikh&page=4&__cf_chl_f_tk=zCkuuvYF1BtfupozfEZx05yhZoaiOdrH_ytCtj8R0Mo-1739797988-1.0.1.1-xP1CzcGCWiAxZYGFaFRBNUmRKUBd9YQDvnSRF6gOoHo",md: "x7tNxCK0JB9Okj2OL69fYqIBjObFHVTV9U9BcFfvzII-1739797988-1.2.1.1-4a623gq1TswuIlCFuTRz7Msq3O7KBvzy69T_i.0HaEEXo9YhkXthnFbhO_zG6cD2EVcP4IM2hoQiaHW2googdkq2DX2TA97cy8Qr5UyfTmUdLNcIpFr90evboqF2zOe9F1_UU_PwAs1B0yWhz6ZNpdp2fUyOvaGeTmDZbuhw34RJYfSZJhkg3dtF92huuD9iZZDmwgFrSZc46Hz9OXC.wg4FL00l5AZ5wk7lDqze_9qmOOP.yNNfIAicU_tGYJtUHclKr6IzP5dVq3cxxF5O9._OTJ4Ifs1OCM_W.SM.6V_e0neamXb_XIKTNci4fffxy7ivJLvJglOoKRy9.El7eSeIuy1Qa76Adl8xPg2rNfkHHzcCa9kB5FB8DF3qTTUSIq23OeUxHGxV2mfh80xfzM8vs3oHFBWzZIDanr0MjGdbHq_Fag1U6xt3yBilh3Fn5Nh5fUFRVvBrKkmrN9GRfZR_k85z4OjXTM5tmp43hwWWoXFRBv4Zuh3hDhbuxenN9JhJsViSUVBltmjblTDP_nkhKBJw.MabQfDEDgzVC2aOtPlP8bIRZSph2VG7rvUbwIGZOCMzNtH..5DDg76n01txaBG3mBusGrPKDvkHJG3npWbl48h6nE3hjRoRel54W7pMPzGuoMut2gj7.KWihZZByQTxDQHndAnnSBrQcNZjchA2ilPJTSCGOjbox_ZcettfE8PL5iGjQjZyowqTdCiJB9K5QWKAP5Yz0E__CwNmWG08ELIBw3CXQsSJwkJfaJhogVdYTd2B2itG8B4sLVQZL51.KRQIA3DE5xx_ZQEh94Z31rGmkCMh.5Mfm1ZPN5MAG5NRZkLUH8QYnrpOIrXo9hWKwT_dO9pOXDuOI49yrVA0sHQHvUWejtOn6uqG8N_M5YK_i2QgWY78q9.zITSISH4qwN0MEsmPJBxacK7EsWqBV1ioQLxACS.lf5DdPIoH0nisQxlCxAcJPAIEXv3zn7HDwIxvzLyZSllbIUW8_OdQLxcqzTcJCd97Jw3nUgyurw7S6HQ8yBeopoTGhUEyjFcCas58TZE_DDdf4KW5Ei2Hd298uT_zwrEYC.1z14P4rOhKu1BT0V03hkuKE_4SeGhgF1wzXQUptrQZDDHMgERD2voGEm2Qzk2ZAVUi4g3nVdk3QZxUl2UNhl1VbHP_cFwa5ZySes_Ml8nqZ6L6Zrn23y8dZ84FKs17b4AyEswxyffxPxjtvE2knlruYzQSX.uWGkvLrUdHOr0Bx50ApMBh7BFTyvyB.jr2ZCogbWA.MdYB1GERuMDxiUPaMe15X3xijAXV24_xyIR7joHfwQE5RRtrsubNbUTAmv_scllNJYLeH8pnIq_Mf.OZvxCNJTqiryb6S3ks7fVwDWUA8HNm49OncQx3oL69xvRH0DxTvP2gS3yHgCNvkVWeixiE21faMyugT1ezOSUuJxH6K5tQY7OMYhxmH_7JJsu0mRPAlJmldOmrNFWsIlwZJNH9OPsD8gg0liujc9CDrJzyos2ncGHIXYVp9oU_c230HKXUPEWloylN_NT5J6ZhWT59rxTXxkqCzRVaIu0DiOxJRpKVZOW_.0BwKnruquhCVrEdpjyFgEhm_W_EcW2o5l4Q1IZZ4Aqwbz5gdWUjvFSEp5MVQ7cuFLI8EIqOWUw7BxGCZbCi53rS1c0c_hyk56_ue8Aeu75X3tPxQ2sU05F8FA6eF2tuKhilQGXTrYmFx8iVPsxkGTpMKENHhNhv83fsQbpLZ3pAJR4Tw0HXs9Xaty0ydtbfNM8N3aoJtr3c_qAuMwwElM0sa7BoE8QREJkaS.652Xsb9yTaJ9eYJ7yeN28MpvIdAQlMRcHv1oHiWKqIAOz7q.57VnFMP2NKvs5StxT60UanNIVRrTthddyWRCsZEZ4SrZudvSHh7qbAMCAWta1v0BaZnuqKIoQsNjuwhCmRubC4V.ZREbzndsSpE6MAcrUNjAotitLlfLlY",mdrd: "Cco9xxUP_6LIEFz.footd3rzyMu6LMKiFKVZZ9fiXTk-1739797988-1.2.1.1-zUUYboFggu1SoP.876mx2A2wIIgk8VJE5BZNMJFHoNl3bmoCUR53uL04diKU1KTMjjXcqtSKTZAfbJ7P7NVckbYokoVnBShSX1Ni9wtpbTziCzs4c2wfGMu9BKOkP..ndKizSu0QoOhpjmZvq1sLpfAPEijTjIms4_3p7BzXYR7HV4mfLan9StvB4rNm72djubNSJNaka.DOeAu.wmqC4VLCH6edETKZ5h36mVFs9yZ2j8m.inhvta7ZVOPtjjJUAe04PNN3K9hT.knlgyy6Owm0Mfv_pFvegXwdp3Uf_XtmHWUA6G2typqlSE70S5iq6a52Mo.VP_XUUkXocw9pgCAueM1zuL18CDtrgYjTEMhMqrAJ00E2rXdWTVMhXfwwtfwsQ8gpqTL4lxXRShJVRDaHhmxCi1maFLfxW3DreyTkqI_N3T_6Sg5Tm3huHy9idmMK2Usb3rDMhJlFzgSA11JDRzdAiarOKME2QvZ.zn0zCZVdFj7sOC5q2fTtUC5eYfDT9W7brWzxP3jeQ1tgl32OeLbiZbijzaea5d2Y6bSsbsWTYiFChKZuxXcLPYORyq9l81x6y.6.VcHIJFcFea1mVcuMBNCdTplXiygI1WmmwqBfdfjISfEMtZ6Y.K6P2c.STKShUUU5OGmsg8W7dLwk5gyrlk74SwSQkX.A00fuV70tIBsp0BZPmWPUw78JtDkZQ5np5L7Tye2keBJ3pT6DKBmz4GrncEF9gQ8Zc._O01b0ErQHQlInicWLltA94YmEm5o4cIKyRnEW3LZXiDlwjymjerlYiQl5kQYU3oZWGoI.jy6cUaVlpJCWTDCUxoQuDpJz6QC14JSOfvzZXNQjwfq5fIspcpfvNp3Z7YfEXQgZGBBYkBHxmybHg1IIbpqfrPL761kMDpuX4Luoo0GLZLUvrcBGfUF_aRvUZZbWqmwo8BUawGSZGkf_gCuM6VrWDlFk5c.xGXDNxgow5bkEP15SFbeAA_0QFklp4zrdY49U9LZhcFzrQDeCG5h.h4o8_Wan7UCqaddAizxfEnDP0kN4egGsEhCWGtgKOxdUprKSmggcrqhBZV7ApyUmImt0QVIpB3fUu6CKCN29.zPgYALdaE2aP_EGBAR7By6wyGCQOcWKX6qMgNhxeWpyQ1_BxL8u4go6QcOoNPTvicFyzNBwZHZhXDmXfBHH5U3Gj1cj2jL3Sabgeu4y3nt9Y7MoozkbfLd5hEhmgJ5I7T5SMN67ES6mP2yLVwKXeLkrgo149dwSP6eW.f9JkfvDSRtmbdYfFRyj_Y9_N4ElX39tqMXOh9sYTm1gujrT_oukO.OGPhHbsYmLBXUKxBFScjiw7FkxI29biq83SoHG7AJfyrf4l3flBB52NYfL4WmGkh25yBhdGkSOKmK3zlt68O7dD1nVKRsn9bXzsTnCT_B_LUyd.bT8cXMlW3rLgl1g7LpbyDbtBseoLhzX81MUIboWZjJIgUTEkppm8q.6Mjl1YGIhGAOiL8tmM04Sr.GN.vIKU0KIxFRHCF6Z1UjUjyTRit6uoSYB3rqqDznKQ0LIjwTOY8BitPerXrxCUcrKbMSFxd0fffupxA11Wr_EHYqlvQkke5U3wRpXLnGnORfHOvnLiloa_dbAe5kMN47djhuZPuafVyVwte3A1KRVYh7Lr3Cxh7StcM_xA5oX31cp7eVvf8GSvLdzq7uH6ele994IJYQVgLRReE6cfmAzW4QQlpA_DpDPkwezPfILaQe2q51CfvnXPI.p._s6W4s9qlpOIL3jVHJeCxPO.D_kWVesyyT8rU668cEoBPgSF.Jcb25ZJk42ycmC3GauGN9wDZEAPL9qT3Fba.hdXLqAhM0LWkRZun9MkYp_keYYDcsLpJlz_Nj_VZB0M40seT7AsQ13nUQZP2brRdvlKmxqkmw8QNVPE8dP4.7dlNA47JFNqidMLJ264GOT_kzNCClRuuJUNgKBwP3q43v7eaI8k6jXZMh2O3hgjp6_LcQS4Q"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=913608755f6ace11';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=H.%20I.%20Sheikh&page=4&__cf_chl_rt_tk=zCkuuvYF1BtfupozfEZx05yhZoaiOdrH_ytCtj8R0Mo-1739797988-1.0.1.1-xP1CzcGCWiAxZYGFaFRBNUmRKUBd9YQDvnSRF6gOoHo" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>