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: '914d87f85829a033',cH: 'mkwqFutdgneOOTi5UnhHR.tjimb1NmtqnbJdCrsVW.8-1740044384-1.2.1.1-.kPr3i5QZDOofwAxl1_zsTEhlYS6xBqfpVwXuLDnfzFflJ5kkj2Uce74n9P6kAFl',cUPMDTk: "\/abstracts\/search?q=imperfect%20quality&__cf_chl_tk=aYHXwtNaaJSS5u8Y2_LVZTgGCzo7vIXYereXEw1rCRg-1740044384-1.0.1.1-.98C8tUeTEOM3NaONSNSnZ3xInUTya.XGwz7q.be8V8",cFPWv: 'g',cITimeS: '1740044384',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "unsupported-browser",fa: "\/abstracts\/search?q=imperfect%20quality&__cf_chl_f_tk=aYHXwtNaaJSS5u8Y2_LVZTgGCzo7vIXYereXEw1rCRg-1740044384-1.0.1.1-.98C8tUeTEOM3NaONSNSnZ3xInUTya.XGwz7q.be8V8",md: "cfiUYv.A1XxEizYmA0X.5TzAwZp.ctlVsX6Yxky4QCM-1740044384-1.2.1.1-7IfR.tO7PbMTTTTMezRhjOQosXybmFnrRFKfBCZuSzrOdbWa73PyUmViRSGnMNp3CZD4t4Lu4wi2s72wksXybsKpwAfNWm__NHjM5Lt3cO4sJUa0v0oXCst5i5qgKAEXlkQqyXBM6rkCp7yfA40tkEm10vfK7uaTo7Wumcp7AZPfKrxtJiOYn_KtD3Bvfgp0EwUI6VaCOfx0KQ9IzfGY3RVijAi.8EyPqduJKNXIIvtXB_3C7HUyz2AAtJ8lLxK_V2K9pWcM3xay28lmW4eii9HaJkuBzMVVI14DMjh5yAwbI0m3WS69QCd0yUIDa9..kMHwBZzetHXf8Ygw6IPlaX3YKbjbF5Kc6rv7O48gH8W7XsQ_.yOFhjOgGkqztBvgGRl5G7QJxjCbqyxxNdtxObVUdQYHI4o9bmMWzHtJJoLj35i1xFIkhCAKoYX5WzFQJyc4pd4RtOKnMfPtEhR8WbIUqUNmB0_aR2LbORN9IQL.kiSfLJ0ffYN.ju1SAe9_6e3NbIUzUgmXU2_QviTIVuHbC7hA1YeOWJSx_L_2403Hlw80OScee4to2rJV63mnhbPSu1m8MK85vgSgi9ZBQ14S2uhiK2Rlr5PEPeulDQ1PrU0FalO.wxtL635lWY9t5r.lOmik5KHju94TpEF17DzegtRAFyBrrMzBh7HiYPH5I_Sgn7mW87tsCxzqyQi6kQSA33oTIUr8sC7ROoxfOS0TLzouKv2kcv3qx7W_p9uUCk9hc6xOThiQh_j1XkdaI3dK33aLsJZtKZOZ_TSGz1s9tuAU.T4Kzi_Zh9AQv8xQfg5Hqv9POh8pYyuxKXsHZ21ILbEvXHJaR29iPf9GLB3rVeRqMT9D0U6qnEmJ4WT7wcCusPwQ.qFcODpzLT5UOxnlz.yI96dRQJ6nomQwwdoACSGZ9zs04RaKPT8TKz5WronIRA1s54Brhibup6BaseG_.jcEdK30XXnblhQUqhw9ssGPbp23StckY1hTYKV3NJUjOrkOVCv9HY.LKzPqr0Gy1Lmqxrp32BwiAOlYGKZQhqihZ3nxe5EcjU9bZyQJUtRaAtC8N.NVnpAcNJuP1RkJzMSQhxuxU7r3eponr8QkWOAEs3e6G_sUtWQ9S5NOMRYJ2Sc.t7yFc6CSoRwkdtFBJ3dtVnNM9cL5PrMO9JNKTw7VV0qxYv.wuDzvHg_6uXRz1NT6tPw4_RDaIrWQjdaH.BxzLzmcX_Sa7mLoABqakfMwhvl0bWQgUmjgRvqtu.0AmYxW6aWiuNd4buUJHeusbVf8pGp.avvPH5W7LedhD4.ov6stOEdKbkTkNtAZqU69AjI4yG957fX4jJJ5bOCcgDZ2sRyYPzEnG5yGX6QMcez2Bvc9sdAPek9WLX8NcQ6oOngKLCTcfcCazBTym0FrhkkMUOFscoFgIHOM7hUKWxxxPuVFrZZwHP5vAvdSnBgWnNvFRanm3X1lzqvcCurlrp48OOc.CFTOm8bqiDxr1YGVuhMhwo2st_jsQ0Vh5_zfv3Yr9iMuYnHsvY05uPTChYD3aYy.aV6cAIHwvd9ZXTyZTSQxtaeigGgTzsyz7CTy7JeQrk1fZhmZo9.e1UJebMUyhvRKQwo86sS3QsUeQEsins5POurZzVSGhWsU70EdOmZoORS_v4xqBd0YPA26QmEBp9keJ19ro81GqbXcrIWPig6qH9WbDyWD0tMmRmjIa6L6RnryTaAn1oTBb.Bl6d1gFUCagDXGXq2lCqwH9YDBiO6.MvzTN8.m2OVa8z2jAE29wZwpSwEB4WWJzOHjwzfXC9aeNDig91ThBiKpA5Ss.CBPiKM8FWXbMRB1KwysXTbp.c7q9Ko41mswxK9MtBc92C7VOSLTiyuqHNqt72kJCglmQTc93xXgg0jTKF4Z7toYdbeuUIszqBEs_zDUhYPJkyynmv91QjVrpxTJ_I0HGQReI6EjCXGpqgM",mdrd: "eJWiIKM4T3AaiRwZEYJgzLDe3hdZtgK9ZhWxBw55lW8-1740044384-1.2.1.1-_nfqdwPFZEbWY8tBDyAcSh19aEzHbxgmLyalb9GWB6jKkGTRafQhtpcC9UdDPVN38GpITe1pejLilEPnoonqyoPbCdvNdwK86VrvOnhXzVGu7UzbTwuo1N51VcZk4Kw.147RA5rNep4JwSrMRbiIVBGMbX1itE4T5dYTgnnXbeIKh1aS5L8g9cbCTNJvtW.0sGi5YAEa87DZziJE8DqRulXwaybbqBKk5nZxBQDWh1AeTTB4067PU7bEbDGqhlo9hKi6cIrxFQFnlrB5sMKsUEPsktSzeRLOhO0.10_WdlFChRmFmc4fJXpY0FBUHDD0eSU7MKsR5OkomORdG2CeC_E0hL8z3SyWSr5oIwlHUGQVafaiIkLxafi2jCgu_v4OdqExGfgzTCag8K_qvz.C4ohcGVnKIqJ4bzIlUC1CotPIMMt2zh6hzWQ0QjNSVCvk4z2KKTeIKuzH.JcBQZXkdhqnvvIrBYhyMyA0v8xLIiV9FWCOL06koDoZ4hGIt_xgTQRfcEeyOEBncXB5JWUeHtnXD6ui1koe4qa81vbg3Sfi2ccXMp6wpEMWQTU1S.jT3vIRYQNByGiGWGsGErkZr0GkclAIFF9H9LVNBz_2Kr4wxMxcgpER7CfOt96EQCALfadylXyiXGlFjNpbcv5VCWiAiijTqHEGjFthYeAhnkWliLO.8.4UcgI70vi1oDv9.s._YLQTOiEN.HKlP5VDTR551fR7Nrf8cX0L81dAzKq.OSZrplApbkJ6gaEu1OHXEPDpo8uV9tiuAtJhHTAuU.ehTPhjQeq81.cx8f.sDQlCx3wFwZam0ly3niMNInJWc_hUtN4IlRRNfKwS.SOd0RvYvsYLOFQ.EVb0ocNMFLcFIWjenH2csI9taICYkGCfwf4kFLjUNG0ObmWw91Ztbz70h9qXCLqrUfaPqhFggOWFITXLZnat2qJlAsEDKECXoX4O3mp3_eXScpaxfsPUQS1TBNGISLDnQeg464vpnsjMOpGuvAx5aqifpfr8qBXohjlFACnVFnwbKacVLa38glFWZdUg3EVxE9.kimqeksgu06Ezn26YiTUexT85V0xptGa8yJuCMe4ju6bxE4wtZazxvq0.JdT3Erp1ThErl8kK8tmrMII4xXQ7Am4Pji7pvC5hyHip4Hn.fbPjGxmuzMFlpjNzCf3545Ylv0ap1O1GenLnSFO7w_XtQou7vnP98LjYToqJb8DPPTQCQWDq1OIIgKleZdcb6LArGad0GGZSA5trtLBi6fBY4NwOyKcKCZHzhfLXaCGlQFk7TZjV8m3efiFuQ_JE3VBTfsAqtPd0D6dUo1wu8MIM_hg6y2yqvY42a3J1tfsjdJSK5U5cjMHGpVKDNdJoWjCX3W181ARyAyjvZwLh6VhKseSRUu62tVhxibqfcCqC2bRF31m.daKVkqhbdHXqXSc4MnfELlcuSkptGlQNMMth1BHQzFUgIGIqKQWGh6CyhYueqfDNHV1Fam43p2VIXZGZe3OP2GOh2XOvd0RsnmgzjlpAFKJsdw4zj.S2wbW4fMPECFzAeD4VldxxDnY5kg0FKsgr.2gV9FGnwJWDG4cGc6C2btvYNScO9BwR1FQP3J84LOcczaMzIVDWVlzeWioMlQgrZHpDxhWQnV9B0786IgtNp3lOqndoIahpkLIGeHYa9DWwRrxSqY.gNeLTMVBYeYfmMglLs6oodEFgElE77zhTgllRIz1qe155uXIAy0bY_CaGkWsXAxnEKQW1eeuhVr25hG09pDPNC44tzC3Wj_WExWsBfkBsb1KM3Tkxgxaq5bJtEIj9iWdZhZp3HhARJ20q_BUedahuOXCW_zs9o32vyPFFJwpCN4yZRm1xNKd537T82OAhpePg6h5iV4YxHnIlWb44Uszq68K8FIX7WaZaoOXNl.N8h9imu.YuHac0t3Qr1MnZ1YpA2Murp.K.POxCHzuPa6kF7CE3.RjjYZCBuHMk"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=914d87f85829a033';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=imperfect%20quality&__cf_chl_rt_tk=aYHXwtNaaJSS5u8Y2_LVZTgGCzo7vIXYereXEw1rCRg-1740044384-1.0.1.1-.98C8tUeTEOM3NaONSNSnZ3xInUTya.XGwz7q.be8V8" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>