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: '913469d0eca749a8',cH: '5O06gWf7LljsX1l021vDxBbkXu1.HsldzoS7izsUSRk-1739781004-1.2.1.1-YuiFjadtE6sxDfHjyHYeJ84y1bQM_ZU627dJViQIVbCxjI6VlNbPiT4A3whzXRUj',cUPMDTk: "\/abstracts\/search?q=Janet%20Wing-Chong%20Wai&__cf_chl_tk=qGwxBwt0SLX7tAmbQS15AeUj53nW0giyUdi0T4Qyhcg-1739781004-1.0.1.1-mfUrLoseDdsZeRjutzazaEIkJ5hRfZJJCDD8tjHNWbw",cFPWv: 'b',cITimeS: '1739781004',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=Janet%20Wing-Chong%20Wai&__cf_chl_f_tk=qGwxBwt0SLX7tAmbQS15AeUj53nW0giyUdi0T4Qyhcg-1739781004-1.0.1.1-mfUrLoseDdsZeRjutzazaEIkJ5hRfZJJCDD8tjHNWbw",md: "zbx9dEbGufzCcn5QepzpYiJMphx_vNFEEG.cULRQHL8-1739781004-1.2.1.1-s_PhLatq295UEmhWUoHUoqn1dncD7U8Dm7M42xT0fHqGgAa2saWINSNEBbr88ghn3D46VG.91ke5wnE3eYueLziNQF5IvpO4lWwC3RYp_4RGe6VVSg9Lo22Gz0hyyq7I.8hNSyQ3ZoCyWr0YSuljD3aPQz_N9wG2zg0cAaktYFHUPKHS_.NdJrXRPB1Xui_6wgyn2ydll8YoZk1kRteHO4.S1zYV6iKsV41Yo8Sl1nIWqvnrMAXApDadu3eTQVbjPjvcyvlzdralmQff61fnJDGL3CbWU.Y4D7IFOlOqBD2YIAKoIl1RofSI5Nr7890nStcauQFplJgFqMKvAynULSf4MR4a3h88V1AaGLHmuAx._eP.VbqcbTVantf5T6S5JkoXTN_nAyLsZho96S88SmKko9vKKnwDOPB7WboHxT9JwhVrPQZqngi.OzChVOZ0Q.cfuvC_xIIikwP7FOrfEAmmCRAiR6gHB2WYkYYP..E6z2KcjzKHSdx_o4lBNqNSbwMXFEm86IxqW9o4Rk2VCS_Bz0OIXJ2Q7cjC0JddB5p2HMVok5yyLDunFTbUwcd..3luZaU4o.uRLNBUrSsmHOEKOdVTl3PxkxmAFleHK4G2oFLSKLWxkr4kSodzHAFIXG1zqDS_plypIg8o3lWQz74HevUDE4nkTiCbcWhi3ndN38mDM7MOmYR4xTn4CAixdrT0TsO7gD6W3NvmD5FX2YmgZMP7FE3eqcwhf9Vqf0R1c6SogzBMLvwIP3.TAXNjvve7NKr7KX21b4mDLArY6AE0rpJYBHiE0SBcN._A0Zn13LfXiWsBbCWyZbHKscN4AWhgI9fCGG28PjW39ItEejN4At1P4BcfwuyJKoieGUdgV8kmWxiFy.6f9AJxHUpUZcYfTRhOOmN5_2tpaaUkfGTlhpKFgQ3jCuUYKBRbldWWiZhIQ5uT9is6.NeSxbWKltrsyJJoFH67xizC3k3Q41HFJGrj.sg8SbCnnSOD1AsPBlUzqEUb6NlomLXTukmZtHGpS6aQOu_wVn2r81BpjWznHTRVHnY98e4WBkvG_2WogwvZjQHkvXeIYBU9l2TcFSE.Y5sBSP9nfo4sAGFnKbYn8URbxADzr865Q.iRPNCRthLJwWPC3gz87uxVdAE3GcPTOQPakLuhLiIiDX2fw38yBnC0v2uhvXZjCWkzd.lozHCWD.HERIwZbFuufmq_UdygI1eQsmnmHX2M6BX.T8BTagYsOz6451wSZt01zWcdBzRiNayqk6F19eRU12NwFsYOqZ.OuPayHjR6OMbAkTm1iyLJJ51EGCwXhTOv7Au5xc_C3Ij.yx5Yebo.b3ges5x7oteOO4vxrjum2LAnTuU_qE7GHBRa1ZDgN7m7rUlKNp45zl3nuZbYSKd9DrTo60oLZrotvwDaBQtIySb1HydhLqNCzjiFcvxlrAu4VWVKacX_EJZC8HyD86Gphp36.n1Y8DqtxKdgS00oEI6cOxG55WGyVS_db.mRjCiClKCRSa9kkscA3DbVKgBpglpKmky_FSlPjgC0__ffVNIGNgyMCfo2nc.Q8TBSV8d_TjR0hNL7TQyksKjIuG_ElwiWlRV82PWRTDQr6Rw_AWyE6r5reMcPjWy_5ZSIxJEZP83ttfHUekACVs4Nfe3BMnchaOeKgHLIBhfD8XozN8vJ9Bj9rZkbi7g2lGyhpO3zXZ3B6usGZS1IVZLYoJwFwWuahsjmi8AjVLiBLnLsCGlhPDXstV6PtxuzZcnJjq4F1fTyeRjdTOADgif.tU3Yquuq6h8zUBgsZeEw8YYb01tob1TTifTMqa60Q53OtV_A838AnTcNEzEVYEoL6yR4xYL6b0GpjYJ9_s14ouKrGhBLcci_DavLh75ELgzIz6PRfezdqG14roh.GtBKyn1YKImmjAiRDP0RB03h8ZMACdmMnDx7uKGTWpvzWX4ekyuiUGNbBLGkleiz0gGFOvhEHo1o",mdrd: "YEpSfjR35jqAr_5y_i7CPMUoPy6t9xMfZBXUfPGF6A4-1739781004-1.2.1.1-Onum2WF23HkDo62AmQ3MiO1WeBu619onb0GMUPMrBjhf_jAREicuKnp0q84rf_qaAfz9Uz6rLNBuzMf1IiJAbCooh2juXoDAw..zaKY06kzWjssxgSTq.pCSQ9VL.Cv1os8eitN02maj_lrBoc0qrzB1RKxtTn.foMhnR922QByKjQDktl8uQQE76PvwcJsiOi2h7_NTrBZhAZkDKyQSms6M0K5jQgEcnqBHlLOKco4m0vwc5Mcl2MiUVFxVto7f.aQwFAEWJSze6zjyGhKTsB4RcNNyVr2Y93BbvbtVB_rSuqjVYBXibTjMxBnfRzieAPEV74ehWqML5_N4PPdmOOdSdlySYB1nrmhyzmigoJSqPHqd_AZGv4_cakubRMry6dhxnoPlX20.ZlRWY7OJuBDkizukDdkz1wTk3SYjdTKdVdyvXIWWXcTlfkCGnA_pQ7zoxlJf2iTmH14AQBz9exPKn_wEzkoAR812X0d_e611N9h8VzVYPQkxo1q0W2.J1fslJ7iBAj3THBZty5USVXflSlJVfcctKzn5XbDFFKO3TaA.wwehPFzG9fRpbGZ3jaJ.n4pR3LTmSH10cBcebPPQK0NIEVoTGgVM9ci2c.7gIjHMkkE3axGcQbIxvautp_naKYIPJasu.ZP0Ec6DbbtC1aQ2APzCJugDEDnYDvaMfeFmT1J0mp_V_B35EnsUDOPNV844vjoXCvlNEZA0W4yT9fPDUvh5uyCqDq.67xYpoCvaGjdSEvDi1VBUpLx4OVThWVMUDj3.WBUBuUzOKaykgQUuljb2Z15uAHQLj7TYy_DIdqgArn76zDjrwJC0h3iNWd6hm1NkBLz5qwsdsVQvlKcFz6tIn6iEPogE2Xq1Qy64RzYtMhIHjahRs7S7Q8y8ZkX5.GWfZoWQKtvyJcdTafD_Jq4_YWGDe076MchMu4CXG7k4MAGCwUBiY8SCO7DUZlWa0Gw1Xgwe612znPdm_L3ex73Y7CqR87Ljh4dFWdZ7dTQdIEXvRKF52cjafylIwMIe1gzi.XxFmj2FCQtwJUIFP6knJ_pX9trGKOVllHRhb4HnTiHogZYN0lXZ4MvAEgjLYTnKLyImYZ2A.38CRcW9FDhadaGGnuZPHYHrXCsm_H43ZYWHHJxTRup41uGZcMmH009fUYd6vZ0SKmglmTOUUxy9rZS_AwZd.G96OQIKFeQszbzxhQtghkSBho8ZjfRjZsrejhWW6PsEj2lBvhviAwPxaEUUdk2v7s6jSfSuV7m3jpqfdb4LGtFQhgK04hHfb93yyXpr5iPQr1cgPpL_znJsDvAMj5fFn.ZZVODuaAXmyRfVIsPhGFFlonxR85HzsRRkqFZL5LRHO.iU8Zdyg.ob2WnZoQ.tBE91FmSryov6O_Vr4JGqLqhkGE48KzRaN3ZSaU3nenssGB4VkOg6WWL9ThvC.XOj1csJdcB.D3LMWiYwgtCDXZP6Y57kQSm_JHrweWLC.7nLaTOAoDQL_lw4WCqp5al_R7oPw3_ygCof5lZ.Vtw_boQJ.TzXlKyxNIpV0Nj6Quj0ebpQ30s.5Wb4s2UnDwVvLqU0_K5O8FE1FE20BpwAxErUKYhQ1d4DUi6Mip2KrojQ5MsgFp9SB6AQBydGGK8R7w4u78yn7UcsE8iV7Ealiv7faFIRu26HhpaMIx751wOj53.NZTj09L92y0jJ_jmwjLPW.hEWhTdZWtjs._suluImgk6RcosJQbS60XwjMR0O6FPr7Oy36qiURcBf7PAiXBROcRdiIsb.Uk6I_q.cxO8OYmAE3UvHVlwYnMyNdKWaYPMhRsWzPa.MKfxJJr.grdJr3AArt3IV6pl_7Fd5EksJFMjCDpI608l_ioJoW730Qz9eNo08Hl.S4VOeqDZ1bnfpouusOpvCevqz5aonorv7UgPJjG51RiTMP1_tWHEPD.LyQ2ncuHPT0N4cDAxO5JFpa2fjaM9wD.7VdiNQM_D2"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=913469d0eca749a8';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=Janet%20Wing-Chong%20Wai&__cf_chl_rt_tk=qGwxBwt0SLX7tAmbQS15AeUj53nW0giyUdi0T4Qyhcg-1739781004-1.0.1.1-mfUrLoseDdsZeRjutzazaEIkJ5hRfZJJCDD8tjHNWbw" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>