CINXE.COM

Just a moment...

<!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: '9150f654be00f8d4',cH: 'hWZRyLUnih_a5REVV9WzRF6bQ47cylVNMovFXkqVgMs-1740080361-1.2.1.1-fg02afNYaZ18L7ATpmrrwjL9wt09K5QRZYdtwRz1wJ9rLrLy0uG9YIZC4swIlkZ8',cUPMDTk: "\/abstracts\/search?q=Yang%20Xiaofeng&__cf_chl_tk=D3GPv1_VwuusOQ6yI40W5g9kiqewQtaOU_5vPaPp7vc-1740080361-1.0.1.1-toYPwcoyUdjKeNfyY4TlCpM2Ti7IbzDKw_JZ9oHFoeo",cFPWv: 'b',cITimeS: '1740080361',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "unsupported-browser",fa: "\/abstracts\/search?q=Yang%20Xiaofeng&__cf_chl_f_tk=D3GPv1_VwuusOQ6yI40W5g9kiqewQtaOU_5vPaPp7vc-1740080361-1.0.1.1-toYPwcoyUdjKeNfyY4TlCpM2Ti7IbzDKw_JZ9oHFoeo",md: "G6AfGe_yWbB0jVF6F2HbNWP3iNNmddrSrX6QmVw3iCY-1740080361-1.2.1.1-9zf8PvIAuHXhrsN2PCOjsEKdqGK97v_KDmO1js.jDtAI6JZYIpuy_Zqcue2DpoDkj_P_UREFMlzIT0HAe88bsb9OFVcAVlb4j6jDx0_sPcCGRZvrOzpf4Xr7ojQF1YN5oZEmb4tsWp6wD2_IM9kxNCjrKkRvvBtf9lhiZic2.kEnOiOFAl5VuGG3n0sXUJaqJw33zX7F7daD3KbIdVdy5P4S_ag8N5VmzEH6Zz_yvOJczvYqaVrPaG4AIiGDl3wCnR59Cy4jCHseeHh5IkomIgVPfgpiKthhYpmEtFKASshaLyS2MsCesQx4ModlZIDRbXWnStCWE.EWwCrMnmZvsXZIwu0e3gCYHx9s1NINNzFzBW2t.yK0tA5oufY5fV8nTut3GJNBT5jOOte3tOdEVney0TCu5jduYp6Rfji77K_LgUGGIuQrQtZZRrDAq1klsf8poNorTBQ000LEKODXZ3XY0l8Y9gZRupWFJfnxLH1yolBIF_AN7Zu09zeFHcpZCUmSckyxaPnyrbC12DOS0jQI_SAplTOu.s0lsvGS5t3IpbsFmpI3lp3N_nnInMUi8ZRryEEIZMbnk4rDlPVZ8XEY.l.OVNAu9Rw5GGuiZEXpW20oPepiI5HWjFLREaEGgFRqwRG4Ceev_5zmVMesFsCULmng9p42tF8sEpUhmtZYzpckj4iesjWlPo5d6VktJT58EVuAskz2wYW_8tcYGkTf0Ohp_SLcirJsMY9T0CeOhR1hoNHr1j4K0uWMb8iOGuVBKYWa_22ugC3rqtw0fi0dw67BuWPE9sYpUbgFhYGC5BCzvRp6BDHJCG7MKnn_r_Kt4rstpwzLniPKYRyoo9rOnx80GhVMkV81JdL5KPX4ifs990yY6ZkTNQ073JZBDo3MzMV2JOxRHZcnP47Odh1s1il00U_wS97094Hu1h3X.0d8LwrXy9d1wws3_6a4GYevMavwaeJPLQ7Jn_lRxe_zUAZhTBwniJg_uzMzl8dOdqzGN6EAWpK42BfEguWLrs1DwaE95NszeXM1sevKLSWBY_.VdJDUsGl5TKReVXllZdyTm_pEqdytMw4_DOg0vca4vuu2ip0I7LDvFnQBMD1kRCY74QBYYsvG.MyyIr6VKiXh8_sl.psOjEviHZbRz9mecCIOYUmFlWC7U7iuxC4StKAya8Pa9yOCiGJnuKue3g6YpRydsqrC5oSKsPmM.HmvudIRm5bTYWLGSoRI5i0SiMVgD6Q0.4WUfr8cfh7jQIPxkbtRwB..SuNgVgKcVOlBHDzgIXPrs4rsnelo8Z4E6VwyITu1CNiSgvDhODotNCX_WHBjXdYeToCFWlYydMHsvzl8_Fo3.a6gc4P8AGHRroKelFm_sk4Vi1HgdVAd63HMLv7I3zSacWEfpm6H7B_3jxoX1O7SVSvaF_G6IHBwAq8p7SmcNke5KLaExa.rJ.F81Pz06NPsKcCfQoZPgH1dwLWZcDLuqOsGCdgHtFWNJ6LR8faUOQcYo18W7r5y8fz.kswYoH55I0R5WfNS3kH_Hu7JfBQ0LvWtSHtpUT_YH0EqpGG_GWKkQHAXJDL8EnrTIh4kg05EJyAWcm3d2T.3znDGF0bpaFPAtLQ26jiHBN_FfymYJF7LlJAF0C4x2wiOjP4_nf30TYETs44DWsID3VHxQxhGMmNKsMFI2t.1gn7zG_m.6viw6cCFRPDn8JX7KncaIJNcTYyV42f6FDSeh_PguoFaTNi4yaxjj.XO5gufeazT.P08OgBiBhZNKfugphCqsdw47frFso0Pb6XKzHRYlO5VK3ajcbeeJqfFx2PErCIQsvzRuJe9Pb08ZX6HCy.6OGuI2T17DJaJuI9AT87e_ys5kUwA49EebxKVvp0ta1kShD8L_XJYf0FqghgR3slTe7_7nnL3BIkqi_tJ50Ene2t5.v4ZmSYtLS071Wf.xsQm5NEGUBUGkag",mdrd: "ODMI1Zn2GZabxp6SqrtWGSh4HJ2WFG_nKjZYTZIsThQ-1740080361-1.2.1.1-5KO8hmecAaV3EFe9T7OEXZSLZT4c.BW_ZIllPXJ5i90iixptxmUgQX2b2sMGdUM2_FkLCZm_pN2mV9YCT2tTVLDjfMa4AKEswuAnOoz205ZL4GrI3pJmvAjllvDKAiJj95LtUjxepv9LZgjpUQUIrRB4ypPXyp6n0lT.Q6NnnF8b8.7C2wP3usqR6dPYGhRyDs2qGk0zSSoo2i5xvOgiPQMKbQPtdQeK6yTn_51GqH4c5r0bhnE8GBmb0d484aI_FE49ki2UdWMkIX7ly0BeqbDf3bkNpcsct0TMeL7yL0c4GHeIFsR1Ea1h3rE21pho0rh5ENN_hvQV1BzjTJNnDl1pmJcngEXsgyIgZTppqSmwPEks7B8FDFIaQyOISFBPQF3AuvBuY0QM8cgSXHAQfZg49EKfRvDMX5JVn0oNx12G.TOIaPCZWtEZHM0zgqj6ersXK08eSOrzs09v.gB5RPRke4Nv3wJ40NwE2uHvtCeE_Hez70RsQveav_ymrpSZ3HHrudO_Ea5MZyGPRiDLZoR714xOa2nt3YgPGiZSec_PdYGVpK2wHpSITy7jKAMLHe4BmNn8FhkiSn0bYDaSwGFexj6BqIX.gWIJqvZy3I_O6ASuFDfKgptzyoGfJExqQWoHUlOLjzm9TF3AtLOUFab70g4fvnx82DPJT3ImW0DYqlrwNB1FmAfjrFnXZ7PUlIgplt7Fu2iuf9y84lDrrUHgEsGcab6EqKESEyGOp6FtUN85Cuk4l8C_Tfc0F3K8.6rysQ4_AW1QWwg4HYpG8b4pj7kmDoDDGiqJ6Yk_0lr12P4n3t_d.CAJGkSqqPPNpNZ0ldEewRpX._WFvBY3IYBYaU5_xMA6wnISXsTls0K_Iq0g3GpTPJrNSsqXfZF25PiRyXzcPHU9ODNIWvkO5jgmdNeJ_qIKHS8byVJla2332j3ilVEQ0REaHj9XgXUTpFrhPl9Q3Cjv.w51zsblbiH9oYJFMPx.RkJwhJkXFYqNYwQLPg74fzZj3K_qkMtJSy13DfcTQxkribd3Tn2AauulRMRf.CVYs5RDfDePJCNAe4LqU5tkdkI0eo.Upid3V8RaAWceXwtGmOK1Fulub75ppezbpuQrCSB5NGrDgb_UfSsLEEcpqw9Eu2etF.LB1LFzPXi_ZB_ZibX440fR.YAatm6xk4i3MBYHF0Mp2CKkzPEXpsPtSNr68uBUXMGa0U_LLcs.bVq9xpJc78QXgCxM7EvRvbaQX50SgmVPrDyk4Jjn33Y9rhdwtR9Bg50SkN3vB0.4o5WRJsIirBeFqz7sCQHY5DLcniLtRy7YYzBPmIJZEcfgfi.AYXyuqJzYQXJp.zIznbect6ro9fCAWJmI7CPoMy3E4LClClifCllscAfkR6x3drbkO8mkXIeX0pbo95F2R3J70bQCF7NWzEu.Z6xuAegAAhNf_lulOdhY0RououD.GKfbzS2ZfmymgNJ1bpsyPyC2aatqX2ekwaRhAtWMekAEkKPW1OcWaeSBQ0XDt3BewfT4q3cYJ4eaU2giKSd5wLGvWJtz4DMAugurA1PzDlCxx1A9kzp75gKSy7M8Q.e80LaifQHHSUTvpGUatVZ6a.TsZaRjCHDwNJCcJ5m1q0aJk_PDuht01inlG05TWoa7Qjy6BFkpmGq3OuiQrGrEThgzr7COmB7h5VgO7GrcsA8HzTsYEntFJ4wa.OUMReTSORDDUGicIs_e9TlgtwgZRW0ARtDGoS6yoD3z8OPS4EWEgr6wRqDYdT.vO7XDNj4rc4S8drPZI1S0ECeUaznMfvEtEGmTmkM7mEYuWBHsaLvjEXJesuTD97dGCrvnvSoPye.ypgs5W18ruqJNS4TFVRTuOGYSjKjQ10FnBCA.VX1DugLDhVe7TR8EI55pZ0RLR4WObul5FOBW4FIyT0zUbBb8Sn75SbhSb_o5NoKJEqANOD3cIcogZu.__BCHwuMNbkcI7RJkYXIQ546Pg4W6lqjr2dEz6_8vJw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9150f654be00f8d4';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=Yang%20Xiaofeng&__cf_chl_rt_tk=D3GPv1_VwuusOQ6yI40W5g9kiqewQtaOU_5vPaPp7vc-1740080361-1.0.1.1-toYPwcoyUdjKeNfyY4TlCpM2Ti7IbzDKw_JZ9oHFoeo" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>