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: '91355ad49bdf9d0b',cH: 'fyinayLNrTrQPxsfchGYtLAuUH11yspc7670uwoxS3A-1739790876-1.2.1.1-Fcor.i_7BcRXmu4K8MNZ9mxFLWLOmcKpBVEa__M1nS8ebqavvzx8Rw0X1Xyk3stJ',cUPMDTk: "\/abstracts\/search?q=Van%20Mai%20Thi%20Khanh&__cf_chl_tk=U6w3bBKt3Oc9MB1CAuJYUlgb3hs89b6W.mpAPOOnWRw-1739790876-1.0.1.1-_ZNTZLp5lZmRwiOZqsNF9YxvIjoyzAf1xIHq3SzTXXE",cFPWv: 'b',cITimeS: '1739790876',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=Van%20Mai%20Thi%20Khanh&__cf_chl_f_tk=U6w3bBKt3Oc9MB1CAuJYUlgb3hs89b6W.mpAPOOnWRw-1739790876-1.0.1.1-_ZNTZLp5lZmRwiOZqsNF9YxvIjoyzAf1xIHq3SzTXXE",md: "cZypHjrUtu2woNrpvoagaFNUay3MVDemxGojsNu_Mb4-1739790876-1.2.1.1-HbgHP.6aV8wVUkIHfC5LAepoS_2jG9lcnfrRo.1jawj26nHAYrujuqJdZ0J_Fx7_40ZErPvBuhSqstsup7EGnljBsNrGUrhHZQpQTInRIp3LXo7nxA0R8k7oxCIhmbWn1OlYEypA72fIJe83JD2hEQSCkXIqOuTt5X6lmLlM_By4x7BXVDzlXtaw48vGiOnd_hcdB6yfwcBIYKTxs_rTVM_GCu7QRi_XQmUHlYpttHi.rbLNDk2z_s95pA4hjTKxacAi28b6.vJATl6XgpVP0iCsYLNkwprfGicq998C7hWQIyM0JD9EzWEHI2YHTqH.sq.PezcXSCfNR0VSdXJ9GoO6wbDXCcJL1p4y9bgBsolZG3pBD_fx9IufE0GDPPBSfC6iZ_7jX30450ATkXMgfyIeepLPz5ia6AXTO6WxnqvaXxr5vr6vhbku9KfVOr_GCSizMeb.VmWwpVzCzhRrzl6yqcUAz3xYk1BasS20L4_dppdb4MqS4yfWH8p0cur7JheAlVwVGmukvk4OSofnuqkBAuInLldknlRkJ76FpSsRzq4OV2fpyKSxKEXLz146PhnayPPQ8ewRkI9O4XMVqtb9QvJi7ipiCU6ijrjCuitRFn7npCDsWAnphtXUSAotquK0FZ4uWP9gILe.oKVjky1WZzNrbFc30f1VMG046oi5U5ghakCPkaSdHgogNm1Bgco5xlJEWZCgnyfHZkYFu53dAmOnAVQiCTzheYNM8Mz_NINp1BvNhv_1v5dGCwOxUIIwWCrSjuEahExnxcLRMr80TIOtCfXqFQXWvlfPvTcLzdUweSVaW9tsJc0V3P5qHV7_SaLVgs_ATg8EbemzPZJebYwzmaW.1TUlvf8EPgbGsusuacmOtXQTG8wcbtqonfibS4eWMVHG5QRXKSsyd9GbKpWM60JkoCtdchSLaZF.7FZUJG083N5S8aheJdpy55X34fTiVvPR72kFIcg2WPvgryUKGGhfd0cRhh.YWNAXxZF7sU2sdCyzB6vsjeB65QlpT9oDMCMa6FA2enXn8W6G398v5TtYVdH7NK.nlqaZ3wmVOOep5dku1eBOM.L4JSthycydjwzDayPmJa_tz4oYsSykZdpbu3rQ.Ag_e6nIHnGXpe0WiEV1lxxQTEH7vQ_vQLHj6Gc3a9a0HNvETqMqI4tZSvp7mFiYxb7XTIwgMFnzVF923BsEd7YWBDojyM4dSrZFUEAXIxrxtQwO6xsJG3gyID9cuFkypRh7_0rWTgJxmRP1jkYLTLKtBXAKjAdZFAqvfbbr5yCChVAGh2w6VCL.7hY4Ktsj49x2IhW9CJXgU3yWAlx820s5t_L7tAksP92MloVkGDDgI2vUaUH6bn.b9wOQ_jD_QJHbKOoJ3INsNT.qsVAFfWHs6fp4SHt2VuTXJhsjdlkOpRdWDlZUg3gd1SXRvCr7K44PJI58NzZKkWH2A9IcdpM9AGBJCENks9YdddVkOEtRLQ9_PbrOXb9eSup0X4e1l3NGlpX3pJ3zgEJhoFM3KqSusYxG59TtrbgDUDB.V3AVRy00X5BweiBB1Bg3P4ZTFzVZr0UsJIUjxvUXdZIEffex8zHq1A30QGqNM0oZ0bxQPXlEKdmnaoaeinztJHXiHcTIh31hd5KBYe4T5ZDts99dWDlTZRG4_.RGxd0vkVehWjEhGMpWb8amFPqrXLbKx0LPekQTNEWprXtmyvyyvE22N.H4y9jimxir8EMmxUXIf0JOpQPnD1OqvCDppWsmFAIcEgyJg6wefrj3FyTDeAcpe4VjfiyvlkZrETh28gxptmFOrm.MZpVK7cSgDnAQJroeHZcc4oQ5BJDCtY2qYUGKd9RXn06CK1yEDHyYHzorBSQ9W3BOkAkCMW_Sj6egMeHVP0AAZ.l25Q_abVl9xageephuj9vIwSjvFHK3r8PbJSPON7W0BH0IcoxdMtd.kom_Hec1RUdW2zKE9rbGYnBv43YH",mdrd: "0vkUKGeUHYRS3Mzo6Tlz1GnCUPYbq5FA6vWaGBOdLys-1739790876-1.2.1.1-9q7KOYS4ryrmO0eml51sHUlQMMVHLpu7fObjadXs1kE0ygKetF0P0mH5flz61Hxb13szLZ.Z0r3QXRSN1Qn108X27.lZOLEhMHhwGztQxQQ_d2vZpDIdcwNiZZbQe.YRCkHh9Gao6NVUiUQ6sjQ7cv8ajsecVwO8nxQmn15mJvAxBlMf4ZBdOzTJLLI.b3zgvdole7lzgZ.ScQGH7hHUy2uyLmc9wS1IV.byvJjEMZ9wLt7pI0BCGLQaHLYT3_AMQP5GB7CeImlqn3yrLbWlWlcTFwguMW7xtQrEtNMVk1VydY1V5ZA2GH4TQoHeiWAV66XYhKdN6dNXOkU0BR3FzmhVESS6vhJ5pGpg.kwsW7vhjoO0miGPTuUjAi2cZ2Z53fPjCVdwb9g6JspfsfMFg14Ta_L_dzp._dKplIrfYdhOcVq5ZLQnnRqgrW0jgnblF.5JOubwYZ9Mn8vGvHSlCnWMUyWB1seJnuhrVWN0cVGoX1rdQ81gGlGEDlCJZ3p0d_koB5p3qkAW4T2IzMhiM7s1Ftf7j_2y7LQuHqFyzN_Q5JJwxuRyordCPpDEvtVQjn_Qj.WziSTyQM3GIBvjT..UpUg73iFM3SFROO9Plj5c5me6x6oIcUt.fCCGxDGrsBzJNYwbWUYQk4qT7g4b2HY98mTyWq22KCCtnC7S.N8XKW_912m4jsKRc2g4v9Upz0Nc21t2zGrNyeWcUoSNXofJhDfzDuz_LZlcQJntPuW1LSSo8OWq83nzbGuO4Xn388zl3QyD.OhrQthA.Fy3leHzhBA.kYK55arS87RW9HhqBliids37VKRllqX269JGpwjNX.DTLb50qiIZv_OtxL4PTWSPgIlWEJgiuiWRRmr6h36dXRo6Y2BlxOH.81I2MSyQc63qHetwa38tQnEarv2GxR2sOUouvuiNqZWsQvxT1o5WAtBk2sccYHh.vxh.VwRKmYg3CbXfVLNo8zKQ8s_xDRvqQkiE.rYgQedRTxmYo90mHfNMY3Hu0UreG1B9TS8Hqy.TbSKUkf.fTyyTsHMTaNrujtJsWnNt0WtTUMTbmxmXWdbQGan.zh_a6hogyTTV_DFD551gi62aB2j_rUXUhyxdXaYBY4Ucj3R2AWXvG_8bJm1jr1B7nQaSiaJn_IiYQ7X0z0hziW5g.YooWvccFcPk9CER2vz.YF3WtlHZF8dCE5l_.Uo1sDZ._II8dgM5w2X7vZP0iI1qlKcu6msD.t_wQbh0r..AMMJF.JEbRBOge1W.RRcloXmZcddauSaSCEqN6uqoCGFD2N6pedKls74yxD_eQHbHGAHvafNX3_O4XrPlQxDkGq.47Fw9.TkL7Te8Kc40_FdqqRCI2_OJ6LH67laRDWvsP5.Dsv_4i56A_.cKnW7CXGYKBrG6rWN212RrOjiDw2eRAI5_qpUbHP1zFeBhekb9.E8CTovC8HDdl.tCf3ZLp6k3jcL14oDQrSqC_y.pVR_IjiDzFpaSMN8t_da_5lgrn7qpMcEY9LCmAaGwJGfMZ_LYpnLKZ0NKUAasjVbz_BsXVee9RGnpnZOGkHK7gak.dC02ytItgDq5BpIdn9JWUurquz7APTB5wcpPvvfHg13z4F.wOh7LN_ZnlNAQQYhJ3nAli2xbfhKzvPpFblo2by7yqOTimxSW9i3maHsUS_iGaCe3Ev0e7FcmI1BtZ2tE7pw2PLpdnVDCEOg8fDbGPeQ6dKmVlrezV_wOAXtCOoCoiWC.ajHUvKmfanqFa4tDBL5LeaotuHiM9LehF4frDfNjNpJa8VhJ2JQI57Io6QB3VA8poXfUxzs130hZ1dmufDPvdUklAW82DQiecEY5HeoJ2aesyvCEvF5fPta4uhzMIFIO4r4w_yvfaENQB8evQK0uVNZidEEARS02ez3AZtd6N7Q17_nwnvPCNf3.s7cM8pB2WPp3lcnsAvv.hwxONI7KqtvKSqwKH6nzZOmhPYmT4zjodB383OTWcwhpFiXqiMFB1A"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91355ad49bdf9d0b';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=Van%20Mai%20Thi%20Khanh&__cf_chl_rt_tk=U6w3bBKt3Oc9MB1CAuJYUlgb3hs89b6W.mpAPOOnWRw-1739790876-1.0.1.1-_ZNTZLp5lZmRwiOZqsNF9YxvIjoyzAf1xIHq3SzTXXE" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>