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: '913599b7eb1ffd96',cH: 'e7GVuQLo593jZCI7C480vCco56aw1wHIMbxb1m_roe0-1739793452-1.2.1.1-uikwEg.8e35B8.vBWIwI1g5kLDlk8DsSEystOlns6eJ4dgXCnJTSR7FNO6Jrg59U',cUPMDTk: "\/abstracts\/search?q=S.%20Lekhavat&__cf_chl_tk=JGjT8KHCiv2iQxF2ia5D.nOe1NiwXN6_WV7xQuBZx7c-1739793452-1.0.1.1-isiHl8vw4MlcmFP5RjCCQvkLgi9szV3RXE59CuonLD4",cFPWv: 'b',cITimeS: '1739793452',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=S.%20Lekhavat&__cf_chl_f_tk=JGjT8KHCiv2iQxF2ia5D.nOe1NiwXN6_WV7xQuBZx7c-1739793452-1.0.1.1-isiHl8vw4MlcmFP5RjCCQvkLgi9szV3RXE59CuonLD4",md: "1tCTWpeSkMaXPGgQaLWXsYrjc1j3hjC_4onwC1MVizY-1739793452-1.2.1.1-tu7522sGzZmrlf.gl6mQolYdDqUysl3Pmpla4owSRC1hP3OmlTCmorykU0NHfVmCWpC.IsXTyFfpylOMuRXZzs0iO7RIUU2Y3ByOxfEe0E_drBtk7OqrfuPDRbZdiL2xEOFSZiebbvU8185e44UcAFkSqo6oWwxMpTFx0QWQBwcsYON8Y8lxCv3JDVUF8NkIL38Ev.08wns9pIDHLzMJkOyl3LVSRB1XeeDefv8YwbOS1rrRzpyyxW1mBjQQWCjiWQ1KZ7fvljwKej7roMiZX2GBxu5x8zrz4vTScxiJ1Ilfg5lRj2BaNVG.BSFwy683Das4aCKeAA4L_pNFxiV2n1dKuG1OMuMEbj3FbDTGMcobTLBLCi3PJYMzE8SjNVkUbzReBl12dMVgjDsgBiU4gFXLpuGVYVC._vCbUoRN8lKFIVpLyo6MmzZhxcA67E8a0KoSjaICqGUEKeGsbh_Ce00.ZVp1naRXPyenT59MBt3mrA3fo3oUZsgr1zyL66sOXeha5EB_8kPFG7.BET__QUyRGDx7MX6uYNu05eGSWalUvXeTYK96Ow7FUwM8MGai6CHjlv18j2TAcmSIFBHD.jM9hJfcRrRdJZP1wkbcWpVhygN.zlc2U1O2qLMtD01LehLqYWZcsc8HNvDfa8CoYjrPChr2OaKgkjvycOCLQXfOdxW1cs2Vgq2aANRtMZmIiBxkVGvEvssJXJ7CEiELGi2N9Yxdou6kwa.uPAmaOtZLDlsbnRLikB6dE1rBUESFna61ICNg0_tSKlIAQgaYjz0j08AUnUQ0QJelXqngpwYMYPk2e6wb4mOzi8TCnrB37_fg8qFrb7mEAPU7q8rbTwEKQuPYDFKj7Z8O9PlKwgRXz._G4ROEx4iLDD9b26nz7ImHdcZB8sHQd0lDGQieiKJZdU3GoQeWZLObkC_3vUuBJSSOJe.d6_mX88KOPaqQhseC4ZO9LzJ9LNY.tYYx_rcDKeCtTn4S4qXkgiXQ4T3WHikzjzyJGaedz7dTlPppTxDdADWBYiXF8IRU8cBnZg7peBZ3EvgTPteBwb8G5nXEWOAr0aSljcwhQloRI_OyFYL2hhPWL58wDIrUYbQ.MYf0aMP1mx0rZsERnuvY7sm60H5VHOIyOV0phnVPvko5y66cQ9mKd6ULKNHr9EJsduXdQfgZ_LWtt1A5K.XIxyjtuzluFthkifIR9SHGY2BgEYxZ7AlBy_53KmVtjU0I6AbyWE7Sz_9yhrpx7IiwNQPdmlZ_qv1IFGQflcZaywOCgC6joQ97PAf.SmPbGyNSBZzzdMzPJNSlNUzUZOV8qbTlSrUCpNoYbd_w3PEo3Re6XkuYbM0bGQVUqMmiZh6WClTrEWURI3Yw74T3lcgRXozPgoHXtvRKWV6_jdQFRQVyOapOzvRX2tOXaaDkbCg1IoSIbvzPSkJ.8eTt_RjRPVRbGL6PFM_2fhKpCiKbx4dhVsjmFZnZ.Sr8djZZLui9Xa5FGG4VDDLkXHksuiAdCuQjY8MYKL8Z2IbB2EETcl4826OfAg3mPNr7O_RHSs7u8RUkrC1YkuQL2rKlcczUlhqfyyCElNHSTeqzsBqaS9z6PStMCo_6oMFUvbtbEcfSeC.snStsN2XO9upPOjg_PGQdIcqsVuiiuANYkgCTQNKPrABgZfPvXE7RC2QOuvqDrmjf_G01WPIAYC9yDxUsKk1wS3Ob0l.bPc7rxHrxEMuOnaigFx6L0a6OMSDgg9t5XOREdA3uORvqLuPAw4._RtaeqHEQku0LZqNmsRu_D5tzQHiZgpyfBryjbf1ZLWoTC5wfBIwCNp5ljLlz1NmgYEBJBbG.8cCHy56VUYhEWGvuCDvSRw_MNgDKZH0QJSaPHH4Z9yxqc.7IgueA6GPUZTlVcAiH9ApZGl3A2.qgi3QXBg7utuEwF0xENwHF69ygxu7T.0V6R.M4GYImdSR7aBQ",mdrd: "hv_a1OIWrwieV1k..f6UUi604wu5Hto7rCq34hDpJRk-1739793452-1.2.1.1-g2NRuyyAQlTbXZcFBEq7V2rzMUR.mRB71g4_RR9QE4IxNyfn9_uV3sJcJgABANXRk9w5OSH353K2YnSJRpEjhlxLbiCUNsQEvU9N1tYf_UQ8QZbe757dSyCktzN4KSrnTGCOH9GbLhzPm1sLpUe6OEAWXarhbc8cOdDzOTTMqb9w24JKDlpEEPun3nYj_L1VEihyC3Dti6n7Yc00xWlmpg4XSaBsXzVWKDOvftEYdDUZWtBziWHPuCsjjnCfN3aLovjwa193Z38oslq8qGhMhppWmNSTWsS0dkpYuQa0Xeq88Brm6tncweEos3vpSRO2kMdEOihDaP2jSrgtH60r6.OaZWOVO.BpKc6QZ.mkOCvvIbqXP1RDlu9Vo1u1ZkyLm2eOFepcfxcvshV_qPlsMiBRP4uYv8JW2u9jPVSbrtYF0nQG3.OaEG43uGq1_YaSAA4fHRinijXA8M0CczLpt.vwH2I3VP7M1gyNhmIWw09IidODhf1XrvZX0WzLl9VJ2z4hqvnU015g2q6SSJNed6Ali54gL4mWCtRE1z6zAaZVEf7QFLOC3K85wpM6XB9DpdFdFTXTPZwgXQFyXMJW76UG1pbgbMkOJwjr_IqkfWzcg8NxW2AIycXzjDRsjw3NjGT8R__LT2ikJWwwSt3Cs_LFD5U1ezH3TnUY0wNNX91DxFoAMM7ItllvnWh1zomFOGGuNejR6qX52XamRXJ9DOqk_dxNBzi0lqk_XWwseZqNDF6ae.oueAm0k0x3f17wspb9qy.sXGSRYiThyeJ6GQiF8M77UpVXBiuKVOjiLM_ppgTNDXhDMZB4XsPT8IfZ5aA4emsjS8fogYrUj7MKge8GppccDhKttQYXTGIWdra1nJqB2Swi8BgXH8LlZCq0W8Ep1Ykkb7d.8KBmEjyFPr9GtCP_5szqa41VYLdgXKiEFihaXsgpp0UL6XrMT9X1y1b4Kh7PSbWQ0d3EtoLZmudBIDFwNw8njRnNf.NQVz_66lpci9Nni0pdeuiitPHb7ubaPqDv9buSUUQ0TkCi8mAYMi3p2aqIf6nXLh40mClsgabwoSnSiJWR9S7VBaa8mrJOSnOOxAfEmLcZYx3es0PByXcREVWBg1L.I3.8BZ4YOl8G_JkCIluumxiW83G7MHjxhTxXFhDbpBh33XH15vyMD.rvqzhTD3Wgo3DiAPh6X2ozb7IAz3YLV23UH7SdcXq0Wujzh7YrGyrH_7.PTVqi6kgUOMUR13kaarkWchMb9N0fArl1WWaSFi.LDBjh8.T7bkjnjyMYi4mM5nRODxb2wSjudip4Mm9PEePeJix7RjG88IYesfXREZaj8HfrroUFtE11bKWX6yKRkyzi8r_jtyRshU2GnYCdnppUMTZ6VdfZJMwZpzJQS3lqq1fIAIgu50EgJcX_4ghumVSDm5N8j1GhEWaskHmEo8rJvRjidd1qJkE1NIRsDhsUjrojMnID9.zvf1uoWcGBeP42lF40sqEef7BfF7f39WEs0ie.Wp7EiL2.OBAG8mgnyVVvTX3AsWXkdHJ2AQtT.ppG9ZzTxlck1oJg82C51uNLpixGOyi6Xv9JI.VspLacYLAoKQhog6OS0HuYbH_q1oHl4j1BlbfRlF_OUvqUhVYaEo61EhtkMqKok5.z7oc2Z3OVzBA_5l3T9ek1uWXuKiYEV4g5G7APfb8DbPMnO1UF3cWWGsKH2dSu_rGt9Q3FbN1Ot_75S1RhjgID9ovFehb8sL_i61jm_CbdVVkOCPUpF4Bm9J6P1lItj5o_ugWrVi1kcGHLN3DtZh98bzBxFAbny4W3XIgX.KIbVhF5DRSBp9PzlzSrUaI5Ezn9hun9IUsXGx9.ReyWKKOfIcr8Nap7aJREytODh30usqhalNgcUI1TLwU9PV49DFTnFseONrulhQPFA2nay2y2TygRlhv5W1zCNdcBz0oMqnosznMKleGvTtMtHhkZWqPcCeJ7SbR4PedVkneNa8J.fOAwvwek9w"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=913599b7eb1ffd96';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=S.%20Lekhavat&__cf_chl_rt_tk=JGjT8KHCiv2iQxF2ia5D.nOe1NiwXN6_WV7xQuBZx7c-1739793452-1.0.1.1-isiHl8vw4MlcmFP5RjCCQvkLgi9szV3RXE59CuonLD4" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>