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: '91773d92193e4834',cH: 'YT2FcG_aNcc4ISekl88I501QGHdeaKBRHpWA5fPk0.Q-1740481738-1.2.1.1-CYaKjL0CkGX3jdDPoY0qPA1DKn1U_TP86FF8xlFazKJow.aZ8JuaQCXH3jv_d62C',cUPMDTk: "\/abstracts\/search?q=Cheam%20Daw%20Don&__cf_chl_tk=1WyuE_dT_95jKLVKYVdBwGLn.hl6lSITVt0JGw3Hrdc-1740481738-1.0.1.1-Qodlxgw4c1n29gjX87eiyooNeDRvtv6sW68LxoI5wug",cFPWv: 'b',cITimeS: '1740481738',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=Cheam%20Daw%20Don&__cf_chl_f_tk=1WyuE_dT_95jKLVKYVdBwGLn.hl6lSITVt0JGw3Hrdc-1740481738-1.0.1.1-Qodlxgw4c1n29gjX87eiyooNeDRvtv6sW68LxoI5wug",md: "dQln5fOpxQo1gKTMeUNSdXhHJ71Otot7PTRUKQMAoX8-1740481738-1.2.1.1-2k3Q1g1Iy3R8cBqWC9Ji9mNujuC6ccjwKHtr54O2.wCDW9UDZLlkFC2F3IwPvStnaWzrEvAJE1azChm530hchN9WrhUPWDpv7_KeeAX365ADFQJJ3oSBqzENxMpnUkJwm.KrAtcengZfnbLm.2HQkInCL.KeW7KdCBQOCxyC_IcZRnhTqIktoqkFFfQ6a5t9YaJf7cl8opnXPHlyTNn4F1BMB_Il8SPjW_2Z4U_d_clhb0KpIUJn49EGerwFSoSOGfhcM6EjRRk9vTz06PqmbX3kiGA6Njdxynr4WB31rLzu2Inyx.ckmN1_mRm0SF8VokO6gR1T5rA_IHeaEFO4.zv7jYe7AX_XBim7Bma7V927FXQwCu6fUMdxJbNz2MHnL.GejjTN8OVlD_MQLyhGHz.hfuJWFo9Fdo0vmi6WeHeerfhetF_Zm6ddZvyljmK87P8FtaM3QD30lrMwXSWm7o7_uEoo566jupF83i_Xt8QNHAc6tsUqmLB6rSUyk5cLAZ1jq8ebgdo2._.YHpp.qggeGB2BElqIrfoE0fev0TCqnxiZrGGNC9Mo0a.bTQz367uczsNN0U4p4Jh4yeEEGr2LIFm9Nxm2aP_ordOdkiIT9_G7lp1I.1Fqdumjb_jizW62Rf_8zHpdTw3B.eszlXWMvRNJtfFiAc6z91T2E9.fnG5h4s_CRAGO98m7_QF9eFDO4gUsChMm4IfRVe5ftJvigBF0QdnNrzpgIrMId9JPFZHLkTlk3YZTIGT5LvEKXfFBM4.4oUdSzq_OYUwiItw17a._EVpgJWxnpmkvFzV5QiXWXq7i9wGVjBEbfxFFWVUMFzJDxgMAOJnq64PZXFzLtSpTy3t0c.zEkPXn2dtXjWiQ1CG0dRdAIeUYnKen_FFKu7wr50Oiqg4.wYlb9Z.HE40pZxcLzOFjQeFdRWm.s64PXL1_R0bALOOSKBG.DW2_doemObucfcJA3WeJu.zhtItYB8AuhCkWC2hUj5ejp2ZHCaCEj6e3ucSqBobOVzYZdtCXikpnhDiFeKbJEt8JRcYJ1cNj30vHoNypXOgix7uAaAFHHQhWBv.sjEteWc8TSbdrJ3E3ee0jxIJCCu6EUrpYDW19fiM7_Je4h6ivT5OH1t5O39xznJFz0sEcd879DCW041n_uHAFey49kNAf3yLWm_FwAaP5KDlf5z5_cEldMBPX0D6oHreX5QUpN3UMBu3dXAZ9FdCbWcuYF.pYAfNkPcB_w52H8BdOnkZ_0M5QJY1PeEbYOKluHO09MUYWFSrJxKC.vziLE8JLkXZpHAHQHjhWZpoUHaXFvPR5AZciqnM9mijWg2T_YsUM5yECmiXrWMQetzJKIqKWpTQSomBrO8vxI6ClSDr9C1l5AC3vlh.my3qEZs297gmbFlyjFOTJMEIsq0JxoCFH8fAlMB3z6IcUeQQ3q.JxppMc8oYS7114tcCX778To6wKuUHNVjTB5HIeHJ3Wo0E2whIa2aMXNmrJ3gVbEYOuIJrVIPCicgWB2A7nUoqJwQAwi4u1b1le1YHrdl22kJBDZxqgHjtE80jhxYiOmo4gag.4MplkaLfZ47udtqXf.mXKPEQ7gs9WoyziklpwJPLX.yBBwrt2QUhj2Fhmr8ANSw8jbDvxq_0LTafcYh1iUr..TryrMSebYGTzIHIrAZT6_ipSySLWIFPh8zYHjRCDPxhCX4_iCd4LQbdUVW6btpQHWZaz5Zk1_sG5JXoMHs0VSX9skAGx36Gs0sgOuG3mNm1FjHv5BdYYPAvI2qqKmR.8GdQY_27aUv3avyOqnl5FjIe9SQdi_uQzvpBMAekPpjHu5cyEi9DUjZOQ1KSJUAhkfDPjYv7fi0hdJ.NNMyaG8Hzv8TtvTMR2yxzs5vHDiJ3ioZWGtUeSSeIbZIk1UWw4wB2v2JrgYXpvCoOMOn.TR.o5YAUtZ_O_HZ8nCcIMGsg",mdrd: "77Eock085DgDKaNXTWCTS0AIvWG4W76Zh37jx0v4QTk-1740481738-1.2.1.1-UKFWkVciAfwOWEFYRvh1YBoaKzS6HSV2ESO.Zaos3Qttmd5AHbz96EC9PYCaKnEq6bk809Rz1w0wZEsdEFB2c2I47TKQjPcauUNI_UA4V.rajwKVzPZDzxP_nnPSHUKR978skuVkTh0._LE5m8JWZdutQcVxGNiMpqRlS0oxoKszbjxlM2c5uvmU8gFwwojNCs9BFeRrNYVn0Q7cQwavDel8ZDMHtjyBh._h8Naq2kN9PvGCQGaRulJfK5yUi2Nl9gaSOGAbD2Q7K8dxVuEsam5Kg6DEHRIboFOYKboT_2SDYwJErqc6IbUr40stS.4ZlmbXuB_hVl79fgMas0w1pcMZ0CyQzb.Nusv5semKCU3mR.MoYf_mnVHElObhHpX.4pwDNSRVcx5_eBdY8CeSkZIEedeFpU3X6Aocsaxr66xahPEChvVpNqSfxyPYMoEmWpxz659WPBBpFTNC9s0Tq66avpQOQqUR2gT2ZVDoIMVvtc5dcHwTe.xnAc543l_wkoCrqiEubKm1jpNC_DiCjvXb9eixTa8sFibSclT1uWdAoPvgttTzOFQh0NtYP0GMw_G0rHsUpV4sTeFok3s5IUOyo.h.z4m5Nzn7aCG4yht6jIyWX1GwtisdQbM3.EU1BVZq3T81EvtqPjmPLQQ4d4rRiHxVM2JrYfNsH89TePF2sX72FhUbHrfkgcJMtjn.ET4DTL1r2ZqQbygsRwtYEiSTjZUzL3xM54dnWlRl9pERrbuxNBvECkdz5chwcyCQ8pcwEvS1WO9q65gxoIEMk2KF.nA8BzA3ATIcPAMeE6QSpX5R2QdVIWbP8Z4iDEuA0wDkD5S7hYY.R4BdPRiM0e60Q5aGIT3sZG_sgB6FY3MWAXd0nPFI13gK3BVgL6idxrlCeVPxI3joxvisoQDctMQXsFSpI2ypgu3PHKxCTp.wqNR4zdAQPVC7tQoN8w8xcoy4YbRMJ3WQvBM679bV1FDVFPZqT7B2bQnHTEdEu63O5q6J_b7aNdCWu73YD1gzUU3.BRGJP_4OG_EnQTd21HB_l31LR31YqECi9SlTo4VL5j0nIwfWIzMEg_hx4fBCXx8IByquqMsat4wtHxZNHmatp2g4wbEKeyw_QxkysIdigjsPmFgkK08cVOkPQwxEQ6d30ml0bdLYPctqOZG.QeVHd8d8SbodxjJCNkVQxwRCTAjfdwoo_DIujfxF6dhH56oSiEwa1EYKpDBF2niTTKyxwqnnRD449oR8PzJiFJHSn_pSySfNRX2J0EJuT5JKZIT1A0fXc0vROwVGZCJ8En8XM4eFMTqjwGUAZOrZRPQF7ojiyS66Y63GZ5Y8Sqt0fsAwjBeZJLU8ErIPFoTNTvQ8MLEyCz8JIEznKoJzSQIYqY26ERWUzbBIGXSmu.T5457TiXb9AYwQbPqbrzaQlRI8AlyFUwu0lAgHK1kCV.Awi1u.xbMzSET5eWq0eiHZ2wgCZsp2EzAhUa_I6wGTPUY8zdm4Dlc1i6B29HB6NVbtJyxnEZ3HfaTtlFOpmVdJ4nAisajCAfvZziiGA6B5iSjE1yTK8BF2EBQ8HYfANMWGA9WxWmPu2TOScOqdXuX76z5NDQxudZp0iEOOgZj9y3CGEKO17jEfmFICQDKyJIlUW_QxVT0urrOriJ5nMYtnqeOdPYqAPamPuW0DuI37zIWnTrgB7IAiBtJh6w_j5FfteFfGq.iL3CqRn6RJX7t9O5JKIEZ.FgWgBaDcBZk3DP3TPk4Pvh1ZWPh6GcfFlXgl7ZkinOxXNtiQJjgShreanmH04o9UqTp5Q_aC3CtRGbsbllYEoC4O8IB58MoX1lAaZDH6exirvFctuFul4aCYLVsVvncjAOxGzuO0Tr0qZjj.xKI4EBVu6FUEgTKpaX_kF5IdZueh1ECzZ6x6N_8hr1QC.1SN8X_ywf5uUe_7qgS_EytsReAjsbbLH33pQ6AMki.p2H8PTQyvsikrMvUT"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91773d92193e4834';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=Cheam%20Daw%20Don&__cf_chl_rt_tk=1WyuE_dT_95jKLVKYVdBwGLn.hl6lSITVt0JGw3Hrdc-1740481738-1.0.1.1-Qodlxgw4c1n29gjX87eiyooNeDRvtv6sW68LxoI5wug" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>