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: '913568e96ee24c53',cH: 'Rc78l1PnR60xbNipwkiB1tg8QvB8CB.crTcIAxvK6x8-1739791453-1.2.1.1-1Q3PfoeRddaMKCAZrLZm5T49cxcHqTsjPRgPC5kWHdZzoRIVNorMUxmq1XC.8Lvd',cUPMDTk: "\/10003717.pdf?__cf_chl_tk=FVxXkBerncMJWM7ChIWJBuA.Pxy4510QYd.YLhaXFww-1739791453-1.0.1.1-nwA74Kvw9EyZT9E2.Xyjn_rNHTsIQsnRBfClfgxN4Sw",cFPWv: 'g',cITimeS: '1739791453',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/10003717.pdf?__cf_chl_f_tk=FVxXkBerncMJWM7ChIWJBuA.Pxy4510QYd.YLhaXFww-1739791453-1.0.1.1-nwA74Kvw9EyZT9E2.Xyjn_rNHTsIQsnRBfClfgxN4Sw",md: "exM6qj1YCbO6AW86sOHgBpxLwF.7sMwZKahicaKuDEg-1739791453-1.2.1.1-byHVDtG95wiCxPjT84Gyb0ublcRAmJpvzQvtSYn2Bpkj2sKg5T0LxB1Vym_Fg7IfICh8iEdsbcNHBlmb31EFG347DOzzlK2BIt8ta4WlBw58C7I8w0qGtsz4bbOVj_EHw_tgboCPydUtQx5VSBrTu70lDze0UCdVVzNfI8arDe96wamCfEG4Wvkq9NgfTlTUw9L8cyqcyEXdI4OV2fvSekbZHdBA5AysyJvHNv2chHnn1wvb5Os8k6viK2gODZyPT.dR5hzd2u3BqFhppoBQP3zxFPZriqGUEt9pdwyfd739tobxMMgyIGX_ePv6lHNJpdU2LH7Co8wixj3QqYiDtvirWQvjrXxlB5Gm6kez4ealwg47JZHEZTy1mD09T2UvQ.EvM7qp9w9DEHdfOfjz9f89JtBozSCMXBnS0fKmSuEDv0fmko_tmjY1V4FsL14qikwKzf0ojLDfnBmDv_ZOuzFdoUVccLid9JwpmYL00EF.KW_tOtEY7EuIOtTQn13wYjQS6ARXbsfQDByCFO6M7lwqoxyn8I8RSI_1IYVM2EKrMcyVBAFE6iu8vQZ8IDuIPpRnvDmLMyqOe2djpSF.hbIW4mJNz.W7iFwcw5ycHuyGxD9VVSuSv.ed82VtTWuq2MN8hJDV2ktdzOvgaOd48d1p16PQy1sKgUY7_dLnppbyKBrC5DhuxNo0YdE0Bm5MJ31VV41Kso58W5ovLH9nww5O6aD3SUCW3.pkG6NAYob6E365yw0InFb9xiyfhpDcLHMb_Xvqoa2qVSsw.rNUeVDdEzaVf.vAH3151OXLmZTaX2WOSaHh7zq95X7G4qYRrEsPeLLCXwdaJyUc8xpc7Ggd3fxkjLUqgNS6r8o7qCIdWEAghao0iVZcaz8gPRnZcHmRJdCVLEr7QjPBzsz8tAAOnvmHzPneJD6bhCNcR0x2848P24Cd3pZDjGa8lpOfBX.CtQcdN6b5kLqOJpDAcH95MuoGAlUJ1lmpEgPQ1lSBIpYqDZPKXI6Auypkv5QKh2rGBV7vlTruOV50IjsUyJxDhXdrQmHhZiBx2EF0vpYLOgXCDGZLfr72unFZFiZ_FDTeKa3QyTmvDt3RGDP3pK3sDC4ra9VKyyBNzjiwc7d6nMkKePgpmekaduqExUP6KQuJgYS9MYb7649J6rkuwG4.tbdCRHlZJYZBQ4L9AQmZyEUao1IwCj6LTtE7wLRSmm_fNUVpYx50ZxkFSV2gkyIiAvMeSM4Kn5Vl68agksuC7AMddi6aL0eadCepbaufUspNR0J75gxMt6xxB5fvELKJRU8JW.RvMbr0TLRacDoroCt5wIBayoP4N9_WMoYnWiMVVr9W.jwjXxa78UnBdQHcYNFS2OitvcVpULNrHaC.BLXXdCMN3FLGMVg3QxVDsfGQ.dlHsBD7DHR7nxoHmnXJEyzo3XNq277xt3JZKTogvEvKfXQDNNeKGRBPLT96VwDHfH_GP0X3GS9LLXo18.rLIac_AcKzPIR2i5I2XSj6LWT9BRv9vyPATcOOmk6ACv79vRDEvC7DTpEHrJRRO6ZEAUqsB6SKXQdwDc8_AMgY6HKc1whr4nP8oP6mcLeb28cdcyUT7VFO7fljlq7Kh6rT7w45ZSOj8jFLOS1NmTF6foq3aT2chMq2zAXIeob22WnCNudzgHs2ry0TD7Bb04U0ozJZ2a_Tq23Y5XPWT0HxbnyZoM_kuOJEEYNcfC3kH.6tNt.MiA_PwQTf_cvH9Ww2rx0FDXweX8BHz3kEyplI5sC1uGzUrEotTDins.XduS9kuAgyFPLdGuI9mEuOS0xGTmqhRWAGVRQxJtXkG4ClUUGaohavS24jIYMMKjspeO6PUKKEOE5XFwif_sVwT_TTF1DfvfjAds8Zhz2oUO4",mdrd: "d32BTCQizefOLzslK6EzhlTOzQeMIdR32UMWiBYVRuw-1739791453-1.2.1.1-PGp.nCj20dSlwMYV4hslYZILtX34PVXT4SGy9Z.lh0eQAbm21OChg9t2WLjjT5ve6hrlA4jPcjDz4dQhVIdYby8KVZk8oCExYYYVnJswdOFu.qBDpMEuIwx9K_Vx1Dn4DYzRCVImyymNCIOmx0g8ssUlbLniXECaZ.1AI4wjmPV7CecOzfkzPOQZ6b19O6La1MzDafAEl.yW4A3Oq71r8N76Wt_7yDNQm7lPKZTosLKJUKLQzR1a2Ahkrd6k8yTMHXNgilNi0Xzx4dHVjvFLSQPe.l48YL2DByCjFtYtNhrwLjLPUcxER9JE_zWVJ8uZN_.I.I.Men0.AwcPs9uEuyyXEYZFSDki3cm0s_0lrYAT681BGqAQ0CaVUgMYNxcjT9sNk6yZBMOEVE4tqEWVnx.TAkos3Y445Jzss7_UJB313WcOnf1qMay4Wpb3ebrxXfwhf..Pr9TYl5UsQEXrN2u4rQd32JOObu_J4IVFL.XVJI0mWVZuVS5eVxHaSXQm83VEc8_B0kLaoyDnrEol2gOdeBvHB0zrZgmOVpzcB_mVxCdLepoRLg0A41ldrgzXEZKsjvrewr2zuaS1iq4a2YkBovEVNdt3bcMG4IIDEV67LH8vvHFyOsAJEbA39FS55PvOmv7B98Kj0Lyf0cEd7qilVaPy4JmQXL4vcoUjPJSxLsb4GeOy1peow4gnu1J9.OESIaGzSeRGyxTS.sByy8ty136asTosDI3IhT4DiblW8TMr7jKuHep5sa8bNnH1_sh9MRmJO.WeFy1D.TWVlVXYbajLpkwpax33cmqfk6bCI_WbW2h_cjO2c8mPZgpAKIcNCo6bVrngYVqjS7NK1kwdx1ZSwSJ2ld0UZYN5HaDrOZU8Bm6RKGbA6kDrGOZuHWhUxYcm3uKs70EtkO7z.c12aqy5vqpoWPhlwwt1AcYBaajv3plMaWIX12W9usGJOg55rxDgkIPRu3hYc20KZBnJ0sxJX3Xn_Wd9GzIwaMGALgd3JDw.lwMhhE6Njsf7nDoXR62bvHE2MtHDNCfP4JisguSAUndYdXpYIoNRpDyPdeQN7Qn7xD9Bbiz5Xf1sS4PputhXem5PJp_IahTO49fyi7AfE00v.sDHr_S4VG9QbrCEb0q_EYNgW3FcBjlwR4FGT0FIPgNSvIHfIC9vJNjc9qVHS7PrU_ZWS7ZbiMTQTMVSN4vxvwNbBs_jSP4ELLKU83FJOluntdE9uI71MCEdGkB2I8B6sz97ivBm1f6bIjP3_xisPZCKxescDZDa7Q_PKJCWr5BMQUsigKtfVDVlslKjgHpaJ1F91CF2xH2DUtKRqg2JuheZ6M1hi6a5rkcbfDer1kz7iqFRZcqQXYVbtRdaDZjcMfyFGPbM_4Agb_4_d1W3uZj_qi8VxogxntOW4pqa5bZTF3_n_8FE3sz_J6ksIrCCTTNz2W1DXrlJTNPmjEGM2rsPmJEYGy4suUeH5z1KgRS5azzLg8CLV_OXc7ybE8DaCLPMJfmFMkZNWDUTzdGMvfZPZ1WACtg0eGgFj085gG_5wd6F9xN0PRz2TR.a.9K8eUCy3O4lgO1yh_c.AU5IAsJv0QlSv9mrRxgp3UgVxl8CKrZmuXgqPMghgnGsQwKkDbv8VJNFuk4Ivew0iHC1hdOhQyD7ujfoe2eVHjoHzL6nulH0okjR31z6aiPAWz5WbnvqV9RfTkilx5OuJyzDgApp3yEwJ5Qq1.kX5ta2Ty8rT235bnkDwcKaWIodB2wmutg6BoAObHSxI3ReDGpPx.7VosC4Y14j.rpf4FKk2V.zHbPyjjcoRGVogGqVrb7UtNVAi51Ww1yrs51jyryHodAC1x65PPSFvgHnaCArKttUc5nVV2By9tLZ_GjEZnse_ROBsp8RqoS2n5Xs9PWn_VHhOjj1ZEDUz2BEy0oW96jR9DmGBm0IhCjFXEg7uvkWkqSF0did8alQxKm8.Rz7n8GmOjoRVPhObr.KkyaIZOrOKmJ3AXElyg"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=913568e96ee24c53';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, "\/10003717.pdf?__cf_chl_rt_tk=FVxXkBerncMJWM7ChIWJBuA.Pxy4510QYd.YLhaXFww-1739791453-1.0.1.1-nwA74Kvw9EyZT9E2.Xyjn_rNHTsIQsnRBfClfgxN4Sw" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>