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="390"></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: "scholars.cityu.edu.hk",cType: 'managed',cRay: '9134d9057b1bfd3e',cH: 'eMxONuc_JM1vpwzg77RYNY32Fwya63VU05j6.KJy6oQ-1739785559-1.2.1.1-NbTEpYZhwn1Mk06ZGtT.n17PsBrAkY6hAqoCzzKqJbtWUY0Q3ok5tUHCFiq721st',cUPMDTk: "\/en\/persons\/xintong-li(631952af-60ff-4df0-84d2-9af23a9cfa79).html?__cf_chl_tk=b3LCvT3EHecL5hUPUNBCqBC2GXmzco1E7khYKsR5Yhw-1739785559-1.0.1.1-.pJUBaV7eSdNgmAYreH4HuRiMJCeOG9KTVpdIGKrklA",cFPWv: 'b',cITimeS: '1739785559',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/en\/persons\/xintong-li(631952af-60ff-4df0-84d2-9af23a9cfa79).html?__cf_chl_f_tk=b3LCvT3EHecL5hUPUNBCqBC2GXmzco1E7khYKsR5Yhw-1739785559-1.0.1.1-.pJUBaV7eSdNgmAYreH4HuRiMJCeOG9KTVpdIGKrklA",md: "lf4sN9u4d9AJY7TSe6bpj0aTqFdfiz_x2ut59kHUfYE-1739785559-1.2.1.1-UB7_uVL8F.8RtGxOXfjyeJQ6TuS6SA5W2O0fVw6hPadFkFFR9ZXgyIk5wh7Rh4L2GrcDqN2bYjl0WPUlkYdDGxsMmLeOsNnGv_vyPLkrSOQI77.fcTzhZ9oTpLi3gdZToaOLMVMzr.xp0a2NuqkefK4snSaVyX2wjcn4q.qWE9XicY3wkj_lrZNY8F0QE7Lus_UPUxyKhSgAKF58Xeox47e076HxMTg..jdxbKjTVF_7CORqaS33eXS04be0IVJj11JOum9cgTbTN8AjOjJZmFCmK8q02Af7VpfDQX8poVdAXQA_bV6m9fVYLH.4Lk_6wO_3q.MNnlR3TsBCAKrwWvBU4Gv.4gHhCg6vdjjdJwvFVTLuGhJx_etYEIGlb_dZ8EulXHCaA_UJyrreppgEeo8YsBjEijN3izMoIwe7065VxbCvdM1S2JwcgK0lDEbQAEEZqqDjy8xIKXRYKqb4j2GMGIP4WHASmcUSwBs5DixvPMJs_nGlARWcOE95rqzXBwujkiF.tQk83cmJDCOSsbXxwCdUDKvaiCTMoeo5BCjnfZXXKqCI69vtnKJae_CU5Ycm9Egq1rD8_INVjEpj8b.t_qx8JDuXpgYqqgra8AWLouyINRTj1kMpOkfprDHwUs8fIePX0QjhiHLCY7kWb0HQrViptCVZcsq7LMTrhf.tFo6bRmpObLoIbY2NeCB.U.bIobL4nZOnuwS87HY473vqekY41lIS8EOUnEUHt_B.n.KatyA22s2oRbGERjO1PqqpQNxbbajaLJoHN6fBClvq1YX2sdJYRvMk0c9y1JZitXt6aaktVKwHPdQoy48vSwDf9stPs71pwkj6UD.k9aXuWlw2u9B3OYuvx0Z9ic0MhOlkCQ6YhKj9sqL9jubhzaf5meqaQE8swLSUY0fXVIq4T0Eg7bOU_oasv50.O8Y6TAyb.Etx0HbDZ1eaNSOeHVyVMemx56BLYDZBPtdgp.vHxlB_bor1UPsXJcs0ULA5hVQaWBz6TNGIMxEM7iQdNEsAoZWCzRWJv7tCTH6SbuVO1Ij5OQYYEKwlAqrEBiL.PcvK3R_t4Z3k_ool41Ats8O8jybQl3FdiukKm3dbqyflJfvUEMZ87_ntzN5JefWklsYD9tkMON1Cqo6.sZGXgKFMhw0rPTS5C_oiQAF1xdtB1n0oBnGdiwUbjnX52lr4nJ79dJ_kCi.OGZjnZVMq7kqqrtlfNWlVWs53Q8cIVdjg8jDglAH.jHc.wDXeftk70BK2DYR3o7ViRmAMrYUVWWme2rlyNxn6Z0Gn2t3lVbCCVqX7uDeFPOIaNn5TyzoLYYyHHeoMwkn8wLCoLBNAwiOSZzhQwiApN09S_W8MPnhJxHKq4aHmlfGo3aqrgQKKLEd7MRE8BBioTXjsHfGm7680nKhTy3adFP.gqIvCEqMc7AzlEyV8LSE78eHLb1bAShcmWjgkZjO7sDN.qrU4aliejmLNYl3Ix3xgR9q4gxXSJ8343179fMalW7PYwjfRD7DWoxIou_QNYY54SZ9ad05zZwWBW8QzfrhaVIkLp5GS8su81k9Ou7zj_j_w0U3wJ9_cSybZTSVe0dHa.yzjmMAi_lfpl0Ccozkq_gqBZAMNlE5cdLIYRznFCpoe9lQBL.mMsi.FTvCA3o3mC._EVnivhqbaUBTgS_u7WNk_JWpyi3Zqu3BOzQpHdAlgQV0fdsjZEOOotaQfJXPPitHpywXh0yr6ojkc2g2._nnBlhCtaV1Vpq2Fk1wrp.qwbGwgOvj.ALKc.S6dbLnEtSMhU2oawtkBk0rC_fgFcHeOHO1x8ro_3FEUWCzubCjYc1kToZlNiYiOB2VF9sid8fzzUFUfXPEq2.C_SrL1f2_cMiBIOYy6nwht86QQx2N622CpL3fvkxo.29UA0FNEZfjhuZbd.xh0mzmO0TtaHggaUUdlSB5Y.eljvEJtSkHu6nZndFF2dnpc4VSOtX8U6aKi4s2C1gebKKw1Ruz0_j8ukjq2H42uz_8.QoGPNy54uTbmgo6PmBAd68krVVTUy8HGcwWcZj.Kh70T_KyeL1YXN.A7jSYKh1snLFywYgaZ.GENb2GcBxryXnfec2lpsshp_p4.5OAePvRQWU4JMOkz3yNyk0eOE4iL0lt82LALAEF0N4z1Dz3OhGGgiv9nlw1krX6PHWi4PrqvmbJHq_TjvsoSmJAtUZvN5AQNzAUZaxdRyA4brEthjhg6KUOpxSAH33h_qAs1YU1Jo_jYQ2zOXc867fvAJ3YzDa.oViam3Wv4Wlh9L2ugDY9WXJu5WxSLvLN7kYonFML3kJXafNv7Iu7aqEc5Eidpvs8qq4cf4DVBqfpTgwBqdg3EGI0D4D7msTAreHrEebf_fORTWCa9GqzUkWoL1ByG4skafUu4oTyFDj_WjGChmL8sCx0iL81ihqSLgHTrU1J3XpVyLmmMvFqLvp63_uaX.68CJSKv7FFt2vyX2X5G71dSx4BY8uRfesn7IFuYGuwrnR8f_ehxgZFFARYT32I7Dm5k9rnifH16BxNZfjwhwSEBFjWePwavj6H_I03yclBUDxB3zbHfRMbbPXFX.PHb3tlTEP.JdfD2ZhYO8.NwMYMpjeUaoNoeVjNW09hk5RsVsRDYKLUaXhsmtjq2xaV8Fo.ioa_Y6c1C31t8_4cPcETFPEYMhpv8",mdrd: "928AJ1Jm12EBpimik5XEjuBWy9pzmKvSAjtBpurMYjg-1739785559-1.2.1.1-te6YGg99r7VJHWiN_lPVEE1rqaEeikXS3lkP8UahtofaaVSyaefnBfqB6Y89Axxj_vCN5a0piLWqP7HZAm.dJ5AOdk_nHbHhazkEqO0XkA0_bUEYuRg_hggT9QMlz3_mFBlzPRaJ6I.snUOjSJRvjS.5tAxqdu9c.gDYpZdqsaF_.ktqbeULkwrhCEzxiEWN4AE0ThcFTkD4fnHAhDLt.horuHs5Ym6yEZlO53c1jZzB.5QacNS0wxSNTycKZN3JNR0N5lSINzgjsgpkpg7izwDIHPT9DVp10ZXwHB.Dvv4_zMjeQhSKBP7n3sJdjE0SGA4tPNO6UTDIF_gfNocuZqD2QHSeWruPobfFs0K1SczgE1og4Jj426mavOinEpk8TVrJuDp_mDm9cSnObyc6h_86UfFkr20beOj.Yi5kQNwbOLiw40tPIrpu3IVHnhlqH3fj7WEYYKqMrzaCipUHvAyAofXfRJAn2T1KQflSBd7bBIQhQwqsEtHaTNcOSysZt7Xx6pOpkxpFoT10aKvHHzzAxl9rtmt.z01RR1Q1_NUMjSYNmGe7VWlnGk7XGwbsv6r5XBo6RGUpzrJplpKrDV87EP_GfNhs1B5rzvueLLHO2pMjLVtg5Xl9oWFMwu.CQwSSy8dKuEcqB96ybz.L1Zt9zofSeqb4gRNCLvX3NVL9EK4woO5yPd3.hHtFK2WmRsUnLsecpttEcuarr42hhLSLOyxd7l5nYjK1VxTOaDFa8FUzJbcBregz8k7oBXDAxEaTxSv55E.agB7H4lbHHUfc5W9CnScvwaekOiXxedkbas1QPxn3XdGkgpqu3vFR8x0MVg26KIqdBC.DBl0gCe14YxZ3s.LKBGCJ06xqHxyagDHYfma0lK_MeC3xqx9QFBGVlWASI6PtT02VAsLcbqgCOVcH74nI0vJ8HseWJTrd_CvMl0XzBy_.kXZK99hDBzKZvc3eUrIncFfn4m_QMzeUN2zHZA838U66rrUK7JVZYejl_jyx9dqDYpfaqkx4auMnNYELz6wt7kdWW_hOy.0ij.qtKX7h1IJeF6wdmr82foJxU6w1BLo_EI7TBrkxGQcUECiMp0g3pxD8soIu63nnTkhK6gwZvTS83DMpeSkvEwxnKvrd9HqphjGswJeO5jJ8_kYM6CkvIOq.urRvUWMI1iE43yLSknwpQDiXorV5Sgs1MnzZf0yVxBDKQR32YGBDEnSXcYcW0hG8TPb7B_uS1ThNOxsyIbXGbi7Vry7eMiAxtzxZNCLSDMsUNAxuvPley8ht9IpHiifJCBO9IqA_YK.Y_L3ezO9lnhIL855b6iaafHi4J5vJWfLw9TZodwgIWPKrQ8F2dPOAC9baZTj6BHBbW2E3tf5pWjR.Ivb_c5MjLh8VRt6WaddR0SfqCi8IyxVcYqxbFOrjoR4.fwJKp5Zt2z5CGAjfTK9CjusT_ruc5GNUY7.Kn9njHVkil0XfEHfWANLHlW2EFpdAS5MrLzxB6qkQkU3BmRwKAKar2RvH6piLJ0Ar2izHSYNZS52KmQUXY0dAw3k.7HpHOshWNLelsIu_GqZCZNbbSbcqKrahiuqHxWdq8UpH1HCz0zMvlOE5emkEpGgfb_AYOLv67CxHneoz4ZScrOVT1HUp6v1XBDxGh.QyxLMDVUYwwkUgxeFuvQOb.eAzlOBCUib4FVrO3hGbnQqNhaw399Pr9xyLbndtc4PsaJVw3gSi2kCYWj0ugCodOoX4xnCAquOd7e6bAukKAN7in7bBXOjl8Bd8xqhkNUcjwB7SoYKARK2EFvO3MaCHodSgxJ1eYbGZYZ4HzWNE4JujZ7XKhlPRG0_x1eWzPN5g2.UTfO2BP2J0AqCWrGylltZSD6Z9HKs3VlOpUkiqz6R90Sbrh8nycoSjW20nFUi5s5pid22W5icxceTkoVGCO4sAbTRvCMYD5uObTwICiIKUr5.wn2YDU7J9CXux7QWdNvU4PtMU"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9134d9057b1bfd3e';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, "\/en\/persons\/xintong-li(631952af-60ff-4df0-84d2-9af23a9cfa79).html?__cf_chl_rt_tk=b3LCvT3EHecL5hUPUNBCqBC2GXmzco1E7khYKsR5Yhw-1739785559-1.0.1.1-.pJUBaV7eSdNgmAYreH4HuRiMJCeOG9KTVpdIGKrklA" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>