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: '9134a65f5846fe01',cH: '1T64YcQ3ERE_Yj4QIWGBP3xYBXb0wSMvb_2IE3VUqnE-1739783485-1.2.1.1-ggEGLJKp.KVRnZ3uzdKhS8qbnt2ZXVxseyw25r1xHlj_e.weQAmggz2xmU6LWu45',cUPMDTk: "\/abstracts\/search?q=Heejung%20Son&__cf_chl_tk=lr4jgGt5GwtAvwPqk_NzjL6G.ADf4C4FA6HIm7VkgDU-1739783485-1.0.1.1-WA.AbmJQEDO0R49EJci4YANh_PGCS.Bp6TnJVwlEHRw",cFPWv: 'b',cITimeS: '1739783485',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=Heejung%20Son&__cf_chl_f_tk=lr4jgGt5GwtAvwPqk_NzjL6G.ADf4C4FA6HIm7VkgDU-1739783485-1.0.1.1-WA.AbmJQEDO0R49EJci4YANh_PGCS.Bp6TnJVwlEHRw",md: "RKLWuY1fDHKnYf1NkrQ0p6YzfsD2MG7BiI37J6fXzKw-1739783485-1.2.1.1-atwxKUyiRxeC1I5_Pt20QSeOKe3rS3XaAaSMPiDu20YjQBNA855x3ZQPBYfK_rxEFxlZCQFIGysC0SXcm1ZXox.c_rurnEuPCr7lkS0kVfgUA1kvqtkTasqC.9lMsEFagO6nMUmDRpxcZWonGboO9j6upUf._rMv4X6eNEtrdMPwXY6k.2SaA9r6z_Wnd3s2_RyFcqavtieK2QihYCaEuyi0QUOIGEVRbw4GloNLuu8ITqjhLCB5OhAvelmIrXg_HH1OnKLtpmQYW6NeEj3PpXYndSfjafJ7e1uiucu.ARHd.Upy2M3da7A_cW2_zS4MELlpdvtuUDoE5qNJIyB_lqhSQn1DTCIAh0pz4mtjolWmkh086.Etv8cy7nomye4_2IpZYcov961O6Mq7rzDeSg9vYl8Y405gVHXzPrbiAKCmhl9hf9oWMhrlvxdFxWjE6VDE8VD5V2C5hIQlHiQ65.3eFjoYVvPkHIK6xv3DKmnZmtrS6ljjR9zlySboGKEwqMWkXVhH3rlv77PnGdkm5yJNtUj_OS9Al7vCSURDX08ugQzt_fVGppwIs_wxhrw6.RkqNRLNdePOd3fs1231tS2S9LyXZpTBbBvV4XFUEIfc4L3JSiuuPyncvFWYtSb1158.D8Nk06RPDIuB5NVCpbM4MUASP7HnsF7IhBiw0_q.d3lHkTFjdFwviCxZ0sMCoJf3Jrwv_9OEaYDMRWf2B4kv88zWEiHpeRoutK.mxjeBvrBCAPuutX3V5_FsDXBlUA5.134VNS8y9Kl7Jq7yYkGf52mDhnZAINHLv5cSxxKHFPZVCEMvLY.fa3SJftmNVWFggY3IIoPxblYex2pOuaCbD.y5w3fhY_E46mxQqslBCM0lSTiIgb4tQzHzp1USzv4ujW1Y3VdBX8E_Yc4KgdkhY45pDnCVngZLaYmKjBEQ9GfBKxPtzwpx4obP.KcNobbVHv.siozfbwzJS.JDtaYh8EkpilnpILkxe1D_UfQUCPk.UXoNqiT8RsrVBbaTrgMagBn9GGn172tkf8HqVP_PAteo2NMdxI0Bck49zxKqqE_e1rt4n1Py9OiS_AfRHXOBi89kDIiRQ2Q4mPUXuAo8nplMRr9YpzVKPVGLX82nuOX4jVQ0xXTCpo1ImM2BcI_cmlIYqgjHJHLiAUAkeJhCMfk308yk7CWQeZkfZ5dEV6fjAnuQMmumwojO2Qw8ZRQndZA2pPZLbeVnkp62XT4XJ2xGzqa8grHTzc0fmVxnx2zmeLzIDjpvFqzycQhqroHxVZKVXwmBGxXOVZMR.ra4lORsmdwZ1AX0nmuyeaYErh_QnjxQTw4yRmz05Cs6W1vUH1k_QPuxkSwtKDqSSUAluBpk0VHTeIkh9EY1LC5e74DlGiXQ_JBmP03917x_e4s96SB5CHDq4uYtcJIj9m.mCkvmqi6XXH5sbQATpIl1PWpXa3vyw9TUw7Dl9ED2TAh1C4YxCb9N8zMSo3_teb7Lc5GZ6U0OGH87mVUBoYKc3TXIS6WN.8FKjb4uIqNcK_zz7Eoe6rpmYVj8dD6BuOxz_KQcKaOleT3nkUhZSieVYgZuauCv_xzGVvjZgFY23H0feKqfPq9k28bNmZSdLJR9j_gV2PpMPcDsxl4I2ihMyfPMm7EZWkLOCGOymO1ZnebUWkfqY4_Vc52lJIBAfYwdqL._SuTHEn4qqNQkXYee_PvI8t9lPogRRd83mCCeXCuJoKx6KOYIt08jccxM0RbjbaCr9arpH8_GmQ7EDQGB8L0jac.h1eKks.OTh40.eAqnUPVRHhhE2WENkLoOh3Wh7oXwcUgHMwwLkCgZnw6KIjvsai8hhqn4qiVkUDLm5mbyA3J_K_8gDwcFr7faKw3VKe6k86Jp4WYESby7MeXnxohDdvUqebIjDnLWpRE1F042GKgXCG5MIh78MvlJ8sArNxCP2oBNbA80vQEhyhg",mdrd: "L1.9VwrGc.ByE8lPljrTT.nTIibBrC1gAp0fxJXmSIs-1739783485-1.2.1.1-SxL3AYtIxMCtz3tq6Z9ssoCJ.YvXzSSAAZc9JAAfrCQP1BqgrwWrB2wYuAGMLAlL13OFmj29mQ.iJJ50z42hyTiVa6kR4NsuakHoCGyboYstbD39d7oTBwonrBUZ5hub3iyPuuNwnUfPeroCL902cfxvELx54FhIZ54Cyt2U.a2jMrdTmr2bnEIvHwjIVgxHg.6RHu8F5IsQLo0cBdayaN2h5nn0W8xiZCFYfP_nrdkVQrUszFWVNVu6gf5qXrHYqzbjrhTc8xU7xWiK0kDNpxnfNyTeHzWQbHKLIGVrLKdATxexfHd1X5jcFWDJhDGA1h2M8WJYgaSJtDOQ5E6IhApDt1d128zmBSuuZw6WUQ6ojc73YmtaD5DDVvliIw6oUAtP2aqYHBTrb2gtVDCTwmoFF1kLARw11JD7aNTmEZgEmU0NHXrXuud1SHO0vsqwLFB3XeTeaYAAljPx47p6FULVew2W_dwxLXeUl.8cNxDP0HNwizOnHwGx8HdkSHG_Do2ObAI16wF9JTplgpV_ttghbqz.rXmWdF6A2z.tdjTqh1sDFx.8v5sRM2RtljJqNfWPQl2V_Oafbjv75ODQlfKkCExpolEkeNqqWmP3Y.L3YcRqzIOHmuXMwQNhLA.NdJ6.2KHm22ZcL_aLbjdJteiLuQNrOzEmBkHL_BUeVmvXvOncb8lZiDjZjCSq3YdpL0oyxnpYt4Qy8HL0WgkdIwOV25OjJa30aV.9ItehByyxfCEBEp2TM07GytrKLzqXXmcYrCfz6F6wq3JV.y_sx0UmXobH6NA7NsOKM1_qPi9RPd4LwSjleoY2.ZwWrq29_SunDNuFFp5f7ewNMY4bcQqmepNYx05kLarJprQKz034Pvjtw9SdrJZ8i.H8euEZFicOMVOHOipwSIyqu2FHdlmb3.NLKZtPqwIxGLyUr9Zeq1nXIANSyCJt8DKVaD0KrJthA8_0ntFiW22M.tUhu0YZaPdopWhJ7Iq9L9ZgG4ifafOhdFMOdLcyqEmFVJ8idOlOHO218QSWXhdxWdXILbN4dtxCsMhqEwDmnuz69mhTqpyvcdEdcfnEwzjiYGIRQEKwYet3THUAJ3SWLjrh8Whq3S.in4HavOsEZFpPCcvxTDE.FkGz_fDPgwiIlpgSoCLw5tNc.wrYFSxmd2gUOnlorolL_8srKJQdY0PjA1AHkkX.JLCjRCpYZosHZ6QwHVIb.jzyFkBJxAUTZVLWqCFzybuj1KpYymNpAlS9jUb7qNaPf4uGrYjPRXlqfsYVdFa1x8eN9dtc_UWKU8Ch00HXhCgqNXTS98gTt2wrFU9hjISmAsFdHltwMCXZAGkglGHyT1xmAc08JUPnNbrBqwEjy.bCWuJnlOzYJoJbmO.q4f7tC_u6SBJ9VzOsEgoPE.jYQ8peeKC19BkTl0FTBmCqu2uWtaLHZNdmKe91Qa6ljEW8xg_lJrzRcaWDZWtEierhHDGiISNNuD4mwGA5AvjvGi8OnhvuroZHv8EcauGkZNB5HQl5QGj8ky9ylYrJ4Um8ETjEUmxXkpnJIcJJLA7AOUZ87UYWnA4sRV4IPDQt2D9pGolq417mCJyvOKyYSaPpcgLG6qR_.F63fYcWFABaFxCLaoQ7w44XFbLnOQjJi52T7MoO4pk9vi2bF2WlcBwHBxt_kW2C6V7u9sRK3VW2OPKFuC7FUj7dMGAcYX5aOPxj7CWbVjZ_md_7lYjzoxnqd7ByX3wwseB79kw60pnnIE98dfnRkUfN.EtzsQz0ExkIpnwNNdr0cT5CriDbI.qMFxkIFP8A3.PTeSKyds8MPKXhhbAbbPiZiXNpcMzFyAYhAszX8ZxdlRTDdkE9MOXz09bUjCt99NiNqigurNv0sF0W2qsWvbsyLURMO3Ap4ikCvuPFCQFsWFv7wKsvBXjx.1liOeXJC0T.tfRFytgR6XKTAJbTQ5VDrhw_SkrfFuosop1DIrU5hU4T3AE4"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9134a65f5846fe01';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=Heejung%20Son&__cf_chl_rt_tk=lr4jgGt5GwtAvwPqk_NzjL6G.ADf4C4FA6HIm7VkgDU-1739783485-1.0.1.1-WA.AbmJQEDO0R49EJci4YANh_PGCS.Bp6TnJVwlEHRw" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>