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: '917dc5520a785f32',cH: 'KLthSMFgfAGsdmar_nLynw6G5SUmV20n6DkIGXdBWso-1740550213-1.2.1.1-73ehO6oHBnHu6B5qy6AViSxwhyUP4uge2peW3ZhF47Psip0oC45vfbZVtU4Fk2qz',cUPMDTk: "\/abstracts\/search?q=hidden%20oscillation&__cf_chl_tk=5hyvTHhqmRXLlBSZIFaIqbPUtZdof5oRmWcvJ7B6VbA-1740550213-1.0.1.1-BTM8BSvdx_BNGb74bkpLZJwZweoDKFjxzTjbaP0AgN4",cFPWv: 'b',cITimeS: '1740550213',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=hidden%20oscillation&__cf_chl_f_tk=5hyvTHhqmRXLlBSZIFaIqbPUtZdof5oRmWcvJ7B6VbA-1740550213-1.0.1.1-BTM8BSvdx_BNGb74bkpLZJwZweoDKFjxzTjbaP0AgN4",md: "YZnbqbIoGhU7bwndTaRS1swznQ7Slq0HDCg3msRg.YQ-1740550213-1.2.1.1-hFEPhj4nR_OMhdU8GnVp78705VTM6VzFSgQ8UyIkmFD4Tu3ZZagAqMXhAQMPPYQU7sQvkcIrNhcJ_XJ67DI3fxOuJ51jcnmPcYdgjeTrdngZCxKosQFZx8pkAODQQ.M2aOSdc.gJHT55ShKk2ZQEFD1Y4gNIIT1QSW7Yn26CR6FfBVLD8lGEV3LR2SFvHUBofLptau.15tn_clFMuN9URDhGimo5RWSkr8rT6nfJ368kZOE82STfwwSWmo8.CDiIkp12Z48sx.8VoMzEMcpdnm8UEXZdmqrzcLT1LtgOAqceXHkKveqZUuu7vxdkn8eY0hwERqwnjCsCuT0Mh23SEEJjqPUzHaskeq57HkOJxiEQpuT3dz7cKrL66be8tcTFn_PD2dNkjHZHcBzUVfd1CnF6TyCPH_xAvmlouopUZ9SLmDJ873YtbnHN1mlCBSxnXVYa8nOl0Hvmxv6z_T64ehExVbZwejhwOJ6SrwkQJA2RaYKLpQA3BGP0Qa5DS9akq8JyYt77WriV30Uaxf44xUqb.sZMqqT7etbM6FTLpVKQo3FPnC73PdF.r6B0ExqPNh5j3hVTLY5L21gNxuJAyTPf7TMyYXKuLqeklhdoCtBVSJyOJmK4lrw8O0oAVESDcQuHVseTrQSAK1KE41.VoE62CqraMGIDjpXvwP6lB_saF59LewUymc1Pm.gBOcvN04MCuGAKKl9vy0s0.dClrMuKKHJkM1kp6Nf07_5UOqGEeFRSKRrM7SFAjt74QFf_nppl.m.DgULg08PtK5TYtAcP4UDX7L.M4xVXAdxYa4H67UcQmzNFBJIJQ2OlDeAjJ6Q6CItsoe9s8t.iT__cTrN4LIFyYiUnvNJCvwL4BCts42uJI1nVKJCfWYVVtBbqsp4ywYUmSTAG1jDbzxbkAN4VVhhlsgJhwpWqCwTvGUH_NA3LwMQY755VCSP85rjAy3fPsqC8hkcJej7Zczus49ggGJ46ar1egOvv.cAUL71OOAXnpJQJEupK.JwNsvtZUbXEoIpaOsheS41vvqTW2i5eyvfar7RnqfU0CwikQ62n6OSrUajYnWQ8DZeHbrL_7dN_HcvGcKHHMUErzzu4SWtat.hN57nc9G4svvNuyZs3AlFCZiXI1psRDlwMAqwsLlsqoxg2VcbfaavFkFkwQYe9PrWR.zERg2akcOldZQaTDbacYoEnRmFluy1xkFmlWbpsq3Hai7eG2hVm9NiZ8hcCdEGHUHymM7bCtCW5qvS2.LRACe2Fsk9BZ4C1E9C2N2uVcAdpIk.kGJbieesYp.5tAbSUssXiE5Q8dR4lloaTkp_iwhoiTTOd9IeeMNfiGcQU.Sl7JEpclBhE9dpPoCMD5SY_oTsZpgFo5uFFekHvWBWEHDSH36QBmOLcU9vR..YcLkYtQCOtwOOPTrutSfKt3yw4eE5JrJwAgTaV.wrJik_wMoQkaUmwjJJGTSpPRsfkGqJ.rFTmTEn4lzJ0BEfAyQX0xz3z_TWTWCzSUJ07.XHz68_4R6W92LgNgf5bsv7tSnVqLdIoZHWYCx3dptK7dyfEDJ92EF9HNZUdqpbRm3msvbwDsjvdmTwV1_gdEt0vlRUJ71MilKugn8Sop5yXVI0bc818mithpJ1VEVnsShcLKuscJfk1QYWg7QZqlPHSsEglYxNqZe6O9.pIKJRK3V1H_AmzKpJb6yyZxW7IQ7Y97ukHEohlwcYEyQcoqgNYyRYxijZRuKTCLIkHWp8PnrsiZmktvMgJ9w5Jt1EukbgZAt.MNV7Y_Slkeh4cbszLNWWvK86wCs5jYKDSYjhnIYYEG0s84iRD8kycALNN7ufNxMALR6CzpGFzcKeaMS567PxE23qD3vsXjgwVwIq08oeKoWfnneCHf636cYMJSrRZpcJCSTzeOgE5QfXMTsRhwCRKs2lUJE5y4cAeDtRoH.R.9mB5u4UsZgZAZdk",mdrd: ".cLeZxO6KknXF2286ap.ulTMnoCWrXG5Opbn8NTS1iQ-1740550213-1.2.1.1-fqnQRfPAPf6C0LEQwEF8ew4hMHseR.qgYRKnpEGbsAGfoBSlcBHeWk28mh.uZwP4t4JGVUjFUYR8oD6YPCWcKrQSx0d3I.Hj2xsbXGTMjOpaFklniNebrurZclO5aZEubWCzoeya9hf81q0Uhgc_6kpX8Ozs.YeWZazXifaUtLO4.BFkeiwakv2FZfYaH1L10yzJ_8XT2IP7ITFjWl_GGm_IhTgeN7E.26k3NJ.sHQhXzS6Y6KW2oCaoMadPvvaw8MRwjy0jr.mZS.wRzAejvfa2Qs.85jqO2Y2.hPhTK83t_Tt.DylU8jXH8Ys4MBMUbjXu56Oxh.Q9JvqDikMaRojA2f5Kq1k5kJRhXCC.z1EF_UfDzBQ8iGIQkF38cP8Cmmxla4Gp7QK.FHZV3TDOvtlGBfnmMOJwKjtiKQX5DIiuTcViz_oy7OUI8MsWHe0wK3j5q43AdemMo2MjPi4TGgNkla7zoW0nYpweZmqsy5Z41ITvoMrGbC8CpXvBhvgUSqxdMoVtV3f2zZmKh5cibcgABrAnVJxKxQKfS7hqf11rB7_3l4T8yJA7adlMcHTV9wX1totn1.ZyQ.DuK_czjXLMCRQeF9LC5JXJfs873DvrAh6QkGqaTP1NYjHoRQ4jRLJqnnq7bzScLp.USmZZLfV0LYbHPyO0rhnR_bmpx0wQGColZ2fT3v.mcEKiDXdDmdXURzfYJ0y0_VufoQoFz9ONXyOgDM0Pf59Ea3O4nHeZcXyR74aSBJZIj5iijADGFifMGDdP9mrIBOXubor3E3SkJjipdiNrlu_4AaPNx90izWnCsx3vTWOIuROOc7HHq.jPCfcjEFoLBOphcdYCiQTIZE3Aysydq5WGTiZkdwjQxbXphtvdjVszFTt_XazXaRf_3r.DyGcfhfY9AwQmQCrbUMxEq.7lyyERWfc7.9uJ6GKz5qXNx9SQwpNDoEdJjGdbFdDk.nwbGWBMNR_GoVFQ8ceq09gtWT4nG9VNB0yeXHR9XHijRIZ3hk5Ui57bmx5tW9eBujvMTb18F28sXEdmZvT8FQgQVOme4LNb5iIb9YP3.zyTsHFS517AmlWf4z.yXpd_6QoIRD6aHAMcipvge9aykQ_GOsdGCbw4H2qd7pnSSkatnkLq96eRVRNnApMU.PQssC4cw1yMAAQ3I4JHq5AcR22Z6I7O5oFP3PATMzWKhgY1hzueGtQ8WhmARxQ6l50EanZ.Tkkhi97GPI5LfK96XGbnJx50Ckwhtkxe6SNxWlYlGatTJ4QR67SfmLva26AaMBqkg9VCCeSXrp2oVwaHMmlyrt4fuA3evDVeaRcIhCj1RvIYbjXCxitEi6eYH8S6JlPzHNy.yo9PTDfxQAa93CoX1.iSaqANc_vHEGj7QssKAqyXl7LZDx1CciSDWkbsaRm_aBjh2D0UmQaV40nsiRtgDbg0BZcbJGktMHB5.LRAWgj1VrLhcmsNVJClG9YUmorkRqei3LHEkI0HACaDeazvjKiU.96EtpPaoIdOeNHaxdWOHtz32exXuMB1WwsiaGSPKcwALX4FfdGbSVywponOTlNMDYlQKCwOdsSaty_Bara.4xdU5wmpdp0vy_iYkXeGGwkXukxKcjliNcVkvqYQ7SF7OHXtE6qTUvIo5vPsbc85PjHegnqjxpJo_.DVdIuO9WC8Y4Tu9to02TLhNnAuh.4LzG2BSb1pUmr_lukbXtqLW2qyczkggdka1qkxM7NVPyXBvlTPlI2ONyhNJbKt07N08eH4K0J2j6v0OvBxafK8.nviX9SAYf_uFMBjvussnkGWRSf75OMQXiJTKxlu9cwnLXQeDy9kLQZ5kZVh.IWH4AYkF4B9t.D.dBHF_iYLDYQG2qZOaMWs5jdKU.CO1Dbo7cc5eF01rscJbZCBf_iF2RB_9KxtWt096uZh02AqwRFmDhEuPlpiblIId3pUwjLQ5rxaKJlZe.TPbXrhVtm8LBfAA3qX"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=917dc5520a785f32';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=hidden%20oscillation&__cf_chl_rt_tk=5hyvTHhqmRXLlBSZIFaIqbPUtZdof5oRmWcvJ7B6VbA-1740550213-1.0.1.1-BTM8BSvdx_BNGb74bkpLZJwZweoDKFjxzTjbaP0AgN4" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>