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,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMiIgaGVpZ2h0PSIzMiIgZmlsbD0ibm9uZSI+PHBhdGggZmlsbD0iI0IyMEYwMyIgZD0iTTE2IDNhMTMgMTMgMCAxIDAgMTMgMTNBMTMuMDE1IDEzLjAxNSAwIDAgMCAxNiAzbTAgMjRhMTEgMTEgMCAxIDEgMTEtMTEgMTEuMDEgMTEuMDEgMCAwIDEtMTEgMTEiLz48cGF0aCBmaWxsPSIjQjIwRjAzIiBkPSJNMTcuMDM4IDE4LjYxNUgxNC44N0wxNC41NjMgOS41aDIuNzgzem0tMS4wODQgMS40MjdxLjY2IDAgMS4wNTcuMzg4LjQwNy4zODkuNDA3Ljk5NCAwIC41OTYtLjQwNy45ODQtLjM5Ny4zOS0xLjA1Ny4zODktLjY1IDAtMS4wNTYtLjM4OS0uMzk4LS4zODktLjM5OC0uOTg0IDAtLjU5Ny4zOTgtLjk4NS40MDYtLjM5NyAxLjA1Ni0uMzk3Ii8+PC9zdmc+);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: '913570dd5a8891a7',cH: 'MML5NJCnujR.orU_lu0ZNMoOG80Gl0EJjn54vbNfWTE-1739791779-1.2.1.1-dvAx39ZuuIaoqVvGQteMaHcdkHfN1Yc9NEHx2T3goUw1CDBr_cCTKMxKmlvZ0OaV',cUPMDTk: "\/10010176.pdf?__cf_chl_tk=85Z1.GyvhFSOZkjBfFLfEn8ZNQeWQP6y3j64ntj.ivo-1739791779-1.0.1.1-na8oDUyFre9bv4kCioPSyyMafZ1npobHQ_gCjL1rt24",cFPWv: 'b',cITimeS: '1739791779',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/10010176.pdf?__cf_chl_f_tk=85Z1.GyvhFSOZkjBfFLfEn8ZNQeWQP6y3j64ntj.ivo-1739791779-1.0.1.1-na8oDUyFre9bv4kCioPSyyMafZ1npobHQ_gCjL1rt24",md: "w9vdWt5z0X6ll5YmUp6d9LokOVHhoSDIbQXihmypeIY-1739791779-1.2.1.1-lwgJY3WvwMoW1NrLsbAMH1PQqdWkhSL6h5BimRy2hm62enfDsvK9yYaKlh6P17ckjfdNmXCKnAR2RGhTd6T0wY4EYkoe8u5WNzg37vl1b5LIKajTInSFoCQidVMgNG8VAJNgjic9_Tk3xOOz_NQI.bcKUQM3gZauhzN0AqBrCRZvqw97Q5vQYEowqyvmDhCbuATCb.Weoi2BDea4uK_dFI_lxcdf8o5kRNxC5FgWU3tVleGG03h2UWq543ExhfVmxhBioXN58S_.Gy.PZ3TQUwa_Qf89Jefx.LHC7lWB75qe8IaCm.eo_Hn8Y4I9_h6CEovwKYVXqOBfo_ETinMwMdoL7jD3w1wk1qI0L3Y32ER3f3qcV81aF1sAwlPKabCnI0c6j_D5HbZxSpcLpE26S6DmRQrd9lUlRuV6hOQNiKlcC8uHwBxMMkbwGguk2RL4G6d30URc2a11GUXB8Yy7rHW6yvDeBuKyiMp3aQu3KCnZYjk5VML8PumxguoOLcWvAtUOWcsCO_BhpxXGttiHcOPQRo0iswF.AeVBkms44RN.tl1ydu8Qwdni.ZQsestw53tZ_4cxtaaXl8my68KoHG6AMZVA5X5nAs5YvPn9BM9M5HayBhtNXOhkSfnqOU7UuF9zW11BX8q.7wXnCDwY9xnDX8fIUHhiBWd_QO0YMGj193_dzI2kSa8M1.a9q6cCJ21hBxiSSmJukipDnUmmkKtlLgbjImoIhWTIlTDZSh7Bg4S9u2cFtoyoNCQKK7CXjapBz.4Ag9SYGuh_l5hjsfP59dARcH6HKWl9wnh10Fw42FhoHPAz2C5R1a723DEBIghpiBWTNFuIQCj9h3yyUYfisjOtBV0eBX7.QhZdCK8tCJ5e0HTwf8ouxgB9PsKJoA7xgD1_vtwoJpFYfZE41._Dv6Db9gW6o28u.odn5kuzH1K0aqrHiubsxC2.FJXslhmAuvPz65oaH1QdDu2vFVwBhnlruMxbLmwf.pVH4j6RWyR1NHV7dMQv.nSA.H3NaqtKR_kJ4vY4jgoo2nz5OTWSg6nE.IbPWUFwbvBWNdCokjdC5B918YIizQodEG7kRvOkvJZj47fMcdzKovx1al4lG9JfV7pt_cgw6B0Iz3wPidnM..vmT8BsOdfUk6eyNSlGI1XxGulQJ8tLaApYTMYS5MdWAQwuBDmKK6vpDKUBGxJWYwkmgtbJ03gNLOBDH5jd3Z8GAyBn76.KwDqTa5IJKNGMgKrbzAIrRjbt2X37YbYMqWWzYlVrf7ertlEjqArFegGVmhIFexmoYMX6KBta6QFmNSoqKfFMuKJJ0EjiqsjyjruWEnWMMl4.u4mMs7nHfh640JCgRYTGNEMM0z29Ajup63H8ZRQwqIKRUIBnJ0hbjaaVoq3jzZGuUu3t2RyHTvPw3kZgtlus7Mp2k7atmlZ5gPJ5lokYtwu1O4IXx4_LzgkTRBrUUMl_8QT.P_wU2HWNAm_G5xThcdkR_URx2BU8Nkt0aD5iLgvmddPs.l_J3qmDaSsGCyFajRHExLv0cPyaGqFkEnANX6.wEVHDTPH65GmUBzvk9e2M4iOxwBEsHo1j2khH_dgP6yM5q_mMSiaLkNoQo2ngO3jt4r6uOhD4ndlj2ufQJSfsXSbWttHmNvkiW6_0bbsfKPP6Ot7a51w6zLZ1.niDZaumee2CuaO9EhKXng0BtRnRoHQh76ReoF2R0IWtghp1HpJqfGgHUo0RoKkJmkiOxUFdvUWEEB4eceVk73zFVKP4kh4eBL3pgjoTCb72IlZLic0ORr.tDCi65IOTjQ1RJmjHDIRCvtMjGQ_HT.BmOLEkIpYOSG.yd.wI5qCWCzq4VMkKcOuBcu0eIcbBrgsOlVi91usCz7LIMGqRCCzUa6.Vg8w",mdrd: "52Y1hAEcuQwu5ofsydIgUaL6ceTdnxO_qBt4OlaiH4Y-1739791779-1.2.1.1-qgDrCo3XdE54w9O5jDJQZoqC837gYJVef9AXQoS5XrIVKKN61htgSBICDHWCXcRqqymax.s3PqnXG8ZK2NTe6LI0Z5BjPZhr8xi4btG5Cq.qM9P0TUIKrg..mfytZFJLVsJ7uyNsVDRS.WIFphpUnpURtnqM9mY75wt91yZBlItF7R1tFHTFC_AQtuBTT5Wfyi8CGZg7NeLwyIU5z_IhqdT8wLwtrnZrrY0V4KIDUWqfEULlvtmgOUmuNH2yN83_tPU3RALXU6GJdREN8OS0Tbceyf.MHGR2kb0d1rpX3HxITCRh.g8BBesdanSy9PPlp5kajZCn1IQ3C5UZnAgGD7HvGiWfAZePDWQ83Exjt4MODQiFlUFyw6.bVSbwKdRup7_y4PB_qmt3qLvJMaZ1jCaATQJMUF0s0JJ6GkiKMNUjihCP0Ys9LToeoJgs5qzFdRYolAGYXg_97Hfxk3yJKgVgMCDVMPA6Npd4X6oZPfD78uJFMPtEsbT7QbYy7_xCCLt.CYuZCQ6JTGAfmjIO5_f62Tmv1qiYOHw016ItjLeqbP_FSFi22d9.G3AtJ78O.sb1MDhmZggT65e3mgF3ttS7EVBOJ7nOjf6swtJirswTa3kSwdLk44eZywrsFHP6dEczhQYekQ5ECF5hDrJWoa6SL.Now1LB_neVzo4ZwDeqlGArdyoEqjWi6TfbnPwqJ5jTA3EOOwwFWhwtdQa5cMXbOCQHq4CAygMN4eyPvJ4KnjCCYKbaLDPmJgk27SOTeC05.hR6R46TU9DMaY5_bueF.ZfGsuDYpwMaBOxUN8yLlRui7GypKF_m3IB_.1Hj0Ag2JhopdObRo2TidyFEi7vqEWBo9QkbKeQLefVkURsADizXNVULMUB6YFo6Np_Wp_1qbk3vjB87x2Bm8ALIYILfu4hEj8QLhQjF5Q5mQlBCjoLAAZePUkdtTs43LRAQ5UCQMknUFZ91nQGqAD0um_.8arSnGuOWXyCUmIt8qkJNrRTGynBnIhZOGRViSPHTXpyYtMRCD129Jy3POp3EoqsqsrYb9GmTMngPjWy1PHk_sjGIihSnjjgDxHXR1h3ELd2PU7NMqDizsTdya5lEYtHAKnVoAxOXIY4dpy7AyUZhYpWwaYYf.2mVyUPO2A8J_BnP7yy7arnuIkXDb2T13DlZzSgGyY9j7_onJgimzZUlYJ4Ocx9TSy3f.C.Y3F5zEgw_cUgNoCyVJ4sYz.bJBrca0MtfG6STKeSaj6j6ysK6mL5febzsh.VIzA15iCDYzBhXKb6hbg.dH4x1uXkbax3zdSoq3zxpTaDMkzHiokCYjEnViwhkZ9KZjzxmDwa3HvgWcxWlQiiv9OQ0we5mWoxXhFafGWuLszcrIID.1lximbaRW4o3oeZI4WMRn9QJPMKwbXHgS8BWQ.eKI0waCI5lkU4PRLwxJ1Frn4SbBYozeg6MtwrFn.eP2erE6qpUsk4yuxSM3Re4nr_z.OznqJ_a3tpzod7sxtMED0Joyvw4g5Kh1Y1d3lBSC20cOCuN2VFtPNuccGbjdRvnQeP.fk0h_fMCj.0SYipLbr6j.KDjTc2PkzjCPl3WpYtZMgOC_T6yI.FxUeLz_2zqvh3qo.14zwuMuFo3BemhRpxBDHyxQHLX2et.OFPd0PEM4Qs3NVxpOx73SrbipsocjPcavmRZ7nbs_477sg6EJMPcz2muv9jNkWb1MAAqgaKRyvw.sM3V3afSx4ik4ISwKZyT76Uci4BG8U0nRmS0din00Vi12fPa3s6.78w2hVHm8OCZf_3i1iim7EI2vQPx2F3QSxMtGoGFpCbjBCHkKtChxLyh48Bfr2pACyY44yh2AUOO_VKQVhWpxb2FfOVrIKjM44kn0btTNmrZM45BUJkjtI8oQ4NHGhFNmMRQmYRcijjSYk8s0rXk5nIkSj4x7HnI4T5xezDSfq4nxu9Xq_vOi1VKFlhCeyo18WnfrmwHIIBp"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=913570dd5a8891a7';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, "\/10010176.pdf?__cf_chl_rt_tk=85Z1.GyvhFSOZkjBfFLfEn8ZNQeWQP6y3j64ntj.ivo-1739791779-1.0.1.1-na8oDUyFre9bv4kCioPSyyMafZ1npobHQ_gCjL1rt24" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>