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: '9136ff2a1e78fd37',cH: '20pDDBp7SY0ARscW6AD0FELfPqcvmx7aq33Iz3h0.G8-1739808093-1.2.1.1-RUzdlJ050ieno1WoFVM.qk.3H6votvx1RiOeRj7nhz.G7srThJhgG4sIbkcluFlV',cUPMDTk: "\/abstracts\/search?q=Soorathep%20Kheawhom&__cf_chl_tk=YfOotfyQHe9ULNtSieW7.Fl5SbaXpWiTt5rC3a5IVgM-1739808093-1.0.1.1-R80sURHXqFVXvZOdbfBJYuOr2PXk9M1pTrKATH1.A1g",cFPWv: 'g',cITimeS: '1739808093',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=Soorathep%20Kheawhom&__cf_chl_f_tk=YfOotfyQHe9ULNtSieW7.Fl5SbaXpWiTt5rC3a5IVgM-1739808093-1.0.1.1-R80sURHXqFVXvZOdbfBJYuOr2PXk9M1pTrKATH1.A1g",md: "ptu1dn88zvNG9DjeOb46r1Y5DQHsCYtGMyBFDC2bB2Q-1739808093-1.2.1.1-miJCjS_3yLjZ7idEUtKMTNxadJIot._QDN7_s8Q8B4tgnj6DFzT20xhOvJUjoSKfcULMV4VSEb7BMe98CvMVvFyyMVEHGIh28OnaSyNm7o1v.fZPAmyGFyA9o8uIUqtnU_4zibxk9tA434SFQ1QMTYwwjIN7oxDxeo0O_WXCNuWapGLYd_keG.YhjT7vQ9lz6g976F_KJf_wRXA.Qht7s7Wh4.3jc5WLeRy0gTaKinocLfwMbRkHDySLcwLsmJqVcmGMV60RhsLJAjkUXfLOcXXmDn6Vt3wKqj2zxji1tiO0mHFoSWJMigZMFRLJ3w7omXHZb.gPwdkvZ8iW.Xpi.yAz3ooh8xb57y7KYe.XAbr04XcO9o6IzxeawYkc2xdD5OBhp36s_J4.5JiiOoa3MH7Uzs6zmkyiq0w3xMQIMdLcCy7GwNoo12ncQKnMcnwQKX0rdc9VO6TaQvtf3LbOkip_hdrjNpeojQ75H7ogDTECAK3FZk2dDmLNB3jeLtiV8SsFrkZ7PUBVDmNFLq5IN2TQNn9eYgHsmbCgK.5h7R5kzrjJ3AEllbtf.57QY6L.VWATPsLr32SCDYg1OpQAdkh_Pv2zQp3vO9E40s2yGNjlnJyOC44eukqPVywO6KbZdM_UYS316kuQLJITstEV1OjsWz0Prjdqo1a.mD15fcpG37p3ZlxdKfvsDLcoI3jLU9N0nTwar3ZVCG4A04LPgnpS1h24Q2JstuDk58drvQW4oTq6k8VSQNPpjLrPu7j7UFYaM8l8eU_UAealBGGtWjuMHJeNYxLUwv.nndq0O8MVU.7auyh0HC95QkAKxUTP96m1BH6BU8f.C53.w_eNY0HB4vDk_lrjbQpVrszS6WPwHn_CuUkn_oX.jaBoz7ySlqMiN9xxsDhZO96YduBCU9v75vCYfWI5Ctev10cWw6XGzcSsDyYDOZKkFeHAGRfvnBzhCL8Z6EIYamY1DJ8Cmj8ZXRopbc.56YLT32AI7nbaTGLo6REIduqTaL90Lni99x_AUJu2wjsP6voZICFt2Z4TEsgMsnMFd_4oGGAijvumwlbdbBU2GppzaT2fr_NPFDbXR7t9y3jG5B5HExv8135u9ZOTwkg5vq4LpUfStVIu1PYNHP0ZIVVl4cpZLFDHn7q.4Fy9Hn_XrBuw0Vcj92JXFtG_VP.TRtYhlnfXX6asCYgFwQez8dNaxhPLEN75EvF6KMAkm9SgXOE7Z9uuyh9hPNY3.LSrNMMa5nFrHaETkmys5p980AODr3exkx.0r63pvbVuZghw269m8KRivQfizzcEvNRrGQbeJlxTivfGaDhW6t1M8FNBtTemZTgah0vO1xQhqCX3759KJj9yXY19i_6uyZR3ROIOffbfGZbtXY.2lktyE5845wYiIrbIXBtZnshEQXEmoVW2kMrGhSrrx2SFdFTfXhcp_sQyDNpzAM87hrvzMZVw0XRRZBh87.hL2wAqK2JYmuthyzcCQTG9Eh7B54kW5R3YUiNVy8rrjBw9cI_2thjJBbLtWNTPTGhb6E1NBWUj_AcnAdpGlYH.gCeVcnK_KAGeu8il6NAxYm8uxmD8rDewPA87vEmp7lImVxzkrIVx4bnDuW9j0eQdU.e8sN6GvoyEbdvwyiL3n66sJMekX5Yh.a6D0pLBr6EjaR1IxDDCOnCR3ZTlragnsgpM_6R71NakQSrkiD3uEwsMnUdQIZ5EdpX9PDysRBPWSbHbWlu8JCd60kJkEVco7PQseRIo9yyiUKAuPi1aVUtJgU.JB8EFGGunYj343tbhiMDYUeRHK6on8vBhchFCui99vv.dLasIkH6WktjvQPmsXHD1vHnmLQnGCczh9U7bywT2.u5ANpmNQSYGVDSU6KI50IdzzOp1vAPpnj_LNK0Be8tCZ4D145.JEzvcodpaeiWtnsGcP9OaMTLfRF58B1lSTVQ6hs0f6uGM4U8",mdrd: "MwgF2kMTvtDu5G2RDMX7oj8CqoO9wZh8ZzS19ziXR_Q-1739808093-1.2.1.1-WUoL_BUg_yifa7Ju.Bt5N4Y0L8rq8gZ.zipkSi1xmVNnIkeklyBSMOvQ61EeibGiVbHx5.hxKHlNG6C9WiFkbawcM3BEQWA17bwfePRmEcNXJSkCkapi8Psb_WKn79OF5OUs_I1nWZynufcEqFWlTUIoiofC.xuwA7EUyK_QW3WrFcbiclhyC_SRUCRaS48aj9KgwFccrdBZUYbed73c7XK_3rsAtlXFrZWbLn1ILxNVyP6Dz0PQ.m56OITdNupzvAzmtBZx6vWc0kT6UWCOZbJtUjbDgOr7mAs.2egHeBVwC27yEbRUgxM3MGCUsEaLKILEvY9lEX6_wboU2qUQDpZGP24S_reHMjBJyUXoxbDDQ3VwbOiqu7IHn1z0iVjTXPpsS.4GeVjfm07M1j44hxYwcnY7DkGWxxO_rWbRWP6ffQV6_9Dho2aEBlKxXJ.a9wYZlSplYy5R3CgASJHuylanq8.nuqsRCArFvYVwUby40mYqXHqwanxZmmMKfJ7V9gzzfniqzbv03dGW2rJTnrvzWmK2sRk10D8ywce3sYPzdzmsLP83B.S.4AT6h02t_haxQgJsaAnF2AlFkz27hrP1BGRAYzyRXQp46rB0_R8fwWQa04mQJFunNJh8DYnsxcbG76sXCTREazSVPrvABnqpurBxyRjLqenh0NTzQLE.bU0r95nXQGumKoinS3Dg3XxcH5XEJIo0ptA6N77.BU_0nWURAsRA60ofuIkKBy3WeC4.NEOWwSxHCsOuOunEwvtmRezHnp6JM_m13qXbYZ1xwE.PVjAH9smoEC.Dkn9RK_F0pFrItPKI9QQFOuodF_5FN26CHzUkZDduj0vTW1V7TYkHqAA2X_hPkIWJsnJ4TjjbEzs7F0IJmK2rpu8romjGt0e7QK1MP7nxudum_LFTSx_2TCyZMm24bNE54vj0iaBBbe4va8PtnTZ4pqycE0dzJKmaAfdeaS5l7FRaquNvjkTu47Dw8lDe3h1STlGirBCOLOqxOWq7xOR1izl5GOV7Kw.y7wTSTGK90S69K7nCYZCQi92pWBanC2oA.mLXfz._whp9Dexp5jkAWnJ_16xNaZ0HFdFlcRGm03ESnFXbiE4lxu28T.KnMOp1kK2YmLSCtySIEWrP5QZZh2GNtdHXdB8CJDrFRjFOa9rrPsk8tL0sj6T_2AkYMOpF_M2TD.2iZrDtOtOnD4ufDdFn.qZB2y7RcZinEGZcWs5O6It5sqCoFgs.iIr6lYRjouaPbeCy.Fzj5zVaSaht5uq1Gf9X8g8ioxaVRFdtSgoZF9bkz7sNeDv._Pp7Dha3SjluRluYtO4Z_G9WjUHK7PPdakh82EpzOsn0_KKSIi8XavpV_MmOGy21yFXtIb_x36a3zS8DCpKx4Uv1gFc0n0hq7qk6mQaNkImBJjxE4gSbyabRBtlxi593O.drcjL4C2e_rt6RvsU2UpnuOIzkm9YEzWuy8ggNjHaZX8ZkwOLfZwGyec9_rGJ9v7w8N.GwjX0TNrjGmUDf4qOZMfk4rPQZmPbuH8YDaue7joo9IqoyI5WLgIpASmsQ29UJ21Eguvc07Wwd2JZHoiJzxteFpbi2yWfDryS6axPE6eOqO5OxThX0An6Gnp1agSnMRoGjQT8NCet5yVScGHL0RvaY4hNA8sC.2TVXPRfGX95pajQiIPqf8UIvmmOcXImsKUJnsMeDuf3iPHZp0vf1U8QcNxHAhb1BVmGCjerZqoCzJAsMMVqD_s8xXykttEMeQwtsJtfS6Cr02_6wTFGKcQGGWTx_pIgE2LYGHIfgAcuQatejHRX9rnNJkiWnbgYyjFLkLzmgIcuZOHL0..N25qDmXnR_6CgH3tWxDk8Y9NJIJOoAg43TP37NBr7C4RIJSybQQHFHtsyS.0yXbovjGJE9x8gny99DYIMx3zpEcly0nIxuGNmoavG9wZ9RDb22m7DEgMNVsu9bZZDfs9ZooSDpdn10"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=9136ff2a1e78fd37';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=Soorathep%20Kheawhom&__cf_chl_rt_tk=YfOotfyQHe9ULNtSieW7.Fl5SbaXpWiTt5rC3a5IVgM-1739808093-1.0.1.1-R80sURHXqFVXvZOdbfBJYuOr2PXk9M1pTrKATH1.A1g" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>