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: '9135fbf72a55603f',cH: 'eytgnxYJtMYf5gbgV5DWMB53Sgboc..j2N6eGv8Tq_U-1739797476-1.2.1.1-o6gxGc8JEj9g_11GWluJ5m75cI2bv.1Uil3jK7J2Op_Lxo9h0RCs6GQ_dk.MAjiH',cUPMDTk: "\/abstracts\/search?q=Syahriani%20Syahrir&__cf_chl_tk=ipWQ8zGEm06q17FjOsplgTj5JFeHm7WScc.NxgM.l.I-1739797476-1.0.1.1-ip0s8o_wG0JbloLkfbCF_eaVlLi6s4gcP3tvOLpkLTk",cFPWv: 'b',cITimeS: '1739797476',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=Syahriani%20Syahrir&__cf_chl_f_tk=ipWQ8zGEm06q17FjOsplgTj5JFeHm7WScc.NxgM.l.I-1739797476-1.0.1.1-ip0s8o_wG0JbloLkfbCF_eaVlLi6s4gcP3tvOLpkLTk",md: "AqJro933fyGe221Yx2Nk1vLhJ.fIgUzhhpILAATiJvQ-1739797476-1.2.1.1-RuS6Cn0vvpAgxIE9oJv8f0j8Y5irp0jyQXBTyeKCvpSa6sA3FS51gY0Y2EJs_RBn77iar7rs43hOi2MeUVBz5EKjByUtwQOupUSbyN4PovvrdwR_9.D_qoEMXfY022iRti9QX7dtLwmCDQqP6qwkEbSC9wgj5SM4q1QPLi0FtPoFIGCQy2I4S_brgpHaZsesJURrWXVT.Nz6uaX0g944.svTqYJ.kTOtpMcAMDW98E4HQiIYNkbuCw3Tg8zJ9.dOU.L_iB00xk3wqP04zlMMK77DK2mDKedV0d5Tbw7fC2rXeNzyEBXiqSWG_oCS_njECEP7aX7ta9AzGQzYzrTbFGb0EqB72ZFVTam_fSLXGM7Aoo5eyqrl94e_FgGZp5SS6OshX9YybJsD3zjwqbPsV0jwz5HE.8W5PC35QDmJ_wRqAumcUhekvrcMcGYXMZRkeBFrQ7vifASlzdQOJEKhfLKIXRMnh9oswKeOQ3LUJHEGnNq9eVnK07C2bfIIGoDfnBUIdswGC7rUc0gn2WEPNooK6bB4DaT9SzidqYFqy9soYjy64PEa7g1g_5.J_ZvUSjWhlrXuDvlSBE2piaYQh5hfDjZzPgwBQ06OyI5NN_pqBcyGbOwoHb3u4yGYH0Ym0RUROWPLuhBNlrWRbI95nQYbzY3cRBk6pAn3gXxzhiGsdIgXXgd2a3RCUjMMac1HHZ4_GjSyWbEIIMK508SMcdBINATMQN9K6OBkF_iCkkLgAW5ZblqEdfdyKTY_FTKmrkDpBcMqrPSJ9FtYgNS3N0BUXMrW1mGM8JfEe0iIlp3EVXDfuytAzrrHJpp.zRdQjCFlirhwx9mMn2AxUZNw2KHiFs093fdlwIqcBYJaCsjYH8vH7MYzy3_b4fFdbGPVEC8liyb5cu4m415cYbDF._Dwfgl1cXip1giL6Iwsm708y6SDD8dP9VpW38.7AURxJ2hNvAxa0MrCEuvdExUjUPXX.mMZf4NmIIktQ30oFQgOqcQ_zNcc99QsdEbBoyAAF8GX1WqdVEEaSn0OzSAahIeIGYx8XmKgt38QTd_3Ax5e7s64YiZkcmKXJLfDKQYEauItOC672NcZ8wIRtrNkhH_C8HewHsTEJyJBMJ49C3hJRmeNanebMQ6adBWfPF2WsgaX7nUy9KkO71ce1wNfIAnM2EZE.U9.GPDNRgeO1DNR.EYUV4izzCUHzjIG3762bJN8.wgnqm4GiOPUmuSdW9FJPD313cWFMST_45cX67pj2JYvgnk6rXH4OPZyJoOPjDMhhhqns1_Kxx7OMu8Q2g29vH5MXuZJ2dbEADVEbZhRWbmbSBqJa2gRn9s0OmQh4qn28OZvW7smwRyKqMO9I_.uUCsQUc3My9Xlh0tX11NhkUY_.GLcKSmpsjpcwgH3pEca6CKQlXo3l17GQhS3kFEr0w6jV9fUU399F55uQdqRRICdpthmXTnrhaemLQ8MeoL8VR.Otsuk4CPx_Jf00iLzE0ycBL20x0kjLMZyrYy88E4t9bWNuGgUoePSCypk5kscAYDKTinHYfNINcBpf.5aIhjIISScm7xFErLbhfcQiVL9a.OOHxKdUQM36j31h1cXcqp3e7xPLfwbsS91.7DYDd1yvZ9lQQ8i2ZB2y_hOgvpmx_dzjuMBx3EouGb9kV..aD_ZkMmOI3_6IrcupRNBihQaOSaoy_JFH3xkoZI9dDxsXqZGM8rKfp5VSvjdGKx2lHc9O7sz1kJo_mwTPAmkRtCju13cdtj3wZ4uMXnfB7aonNMKuQOoI24xCLfs.WlfBRjceKUxW9eLRT65mDvSTYD0uf5HFLvtuyIjHSAej4f69hLCPFMex3ZskSL0k8Q5D.UFRtTC1LBUeYaWwM4gShn4AAf6xPD.0EvmW3wr41X17ngCv2DSJHp57VCpBvZxsojBdrWycTA0fOmlbST8zxcqH3mrp2SZ_jfVSNU",mdrd: "ZQ1uRXA2UMswpsTnCAgoBZSDROrUV6ZouRV3DAxO.j4-1739797476-1.2.1.1-dejoRwCTZ0AtpEHVJJJnu.s6.xz1imWgkGzOnwaXi0NkyeoZIOK0a.XA8eoiJ.ky3M5vUfsx19EsUD622zQSEvZcqdTYHlja2BUMsR8KAb87f9mFuf04ehgRiRL3K3dnmXAtZ05_stO6UMOqBlISHll5HNZRE2kKxaQ4nXLESCM5mYr7Jh.nxMyTBKfCpEy70a9cRNymEGAYWuOXshJV9luj3TlDe18haji1Gin1QRq8o98a_qizLnN_oq4cgccDN9D3ovbQTQjCNMoT5aF3IOe1noOkNWYNxQ5tAPJNwXYjsWJ.RhKZXWTRm2TYu7_92Y4THCGoNTSWXvlwIVbfa0ossYFRkl77GQQFzWEmneBlWD_mOUfIXB0CB9eH0C6ntOCrS7g0c5rRhqPtbw7psDti57T.2YDngH6jzN2YY5yz.curEisiqOcpNgv4rjcgcvFjoef.6cBB6OBwMXVy6AcNZA8aPdYy1t6J.EaeuzlZqUxCcMuaMnZhTlYr0JguiCBQYu96_LQYlRDRmhyPx2uOdsZUWwTw8nSJdTGzACag7tgu0buZeTCrknqDccq3Bgq_zuOot92Z07Sy.QF2Ox_6AQVklknsedwo4LgT3taOLGjWbscJ437PjB2h5ri2pLy_vmeW8zF7okHMVshXi8QORPeO8yRrTxy85FCbGAtSLTfifdCHtL.rnJeNMl3_g2H3XIPpYvHiH26MHhbh20GhJzC5uHsHTIh1bS.AzWvpUFOKa8Swc91PlJ_XVzGnVtT2CZ2jeLWueK1RS5PWOoyQ5SEcblMxFY5nqkoO7RjJLwWbjh0snfrWNjqmjkcu4tkLDn3GhojAb7EJP84_nQLnS2YmnHYCbZw26uUNFy.qq_O7IQhbBUyBEBU6NTqS1YdnX25Mds9lrF9tV0DrdLz9k_XVaSqpkFkM7vfMsIti5AWXpqb.IWZT4Cc7CdITiqhtJ1AmhSdJEbuGUVcI8tWRCx1DV2kHfHVpQ6fa5n0zm0pno_XIAexFLqu0PD3lZ7BVwonTYmLskBSgNXN8tSSf987HlDdCqydjiGQzesyNDQVLBgZuQwKIgo.Q3881Gk3zVovlj5IGi97NR7aIEg21ct83BpI.mdkq1w2n4Q8joHjHAY1mFCtnIXySreehoOcS88_AmvVOzlI6vIgJpCXV1Xgrs_h2_MwbE8H3pKToK2zxzHf5yryvqBP6jVhYZm2DkKAktsXiOGIs0orzAoguY1Uxpb.cYXEi6tLuSgNtgf2K.0EI0B8OkQiyqmF4quS3B9WOo9nSFJGgY.JBdRw9IF0lAcz8INHbvU9lceSIkPM3ifgqSwUyUhZw7Z.PeNoHRq5eUZXO3l_hzNpeJlTBpyOF1KtszKrv6S4sbWoo2ep882o6EkVmESNnQXc7OFgpviXbFqd8fGTT.P3rfGKJxen_pQ6MYgUKXBkB3rYpn1lth59XvU4WodknaLc4lnvVASB.TxrbpYI8xOCuHa1M9QVqPT6viAZdxD9b0.Om4E3N6ENugaifZ03gTTsjIigdLjcapsi7CEl9g0KpU80njWBYl0KWK6bmxzW7hD53C4kooWL_qfPgvExW5VfQMSbvPNKrlRC50N_u..LGaTIBEgQWOucI1EDm98bWlkOBjNrk9Gg8x1X5sCypaKnkTNQj1VMy1JU.9ScNVUSDNQuqUD0a6C5o.fcRl9NnZptLypWZwbEWj1bkkCCzOqB1Wkjc1otYr3wqWj_8e8CohWmDnXsrs4mQpNapJ1Ixng.aXPNNh4PJbQfHmHc5FsVo3_l9mE.G15HAV_Tfm8ZM24Ww5xcDhMsbC9tWOtwBpvcnjgdUHyruEbbDMz83ibx28gtwmidGJDM4tv0dUdgnFglwjQJNCWxSpYBY_XoMoqHcLAoLLMC0F9D_ZKu4zki_IUYjPAGiZQJnttFw6KcFVAwBJ4fVBhCkYmpaWF.D_5K6Ehy4a9nGd2t7YhpIOAuN0bMV7vMc.6FIMHjV4JzDcg"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9135fbf72a55603f';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=Syahriani%20Syahrir&__cf_chl_rt_tk=ipWQ8zGEm06q17FjOsplgTj5JFeHm7WScc.NxgM.l.I-1739797476-1.0.1.1-ip0s8o_wG0JbloLkfbCF_eaVlLi6s4gcP3tvOLpkLTk" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>