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,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: '91359ae1885bfd8b',cH: 'UP1YqVdTJRI6z8BtuaIO5t7ez1y_rSvqbbQo0gSXLD4-1739793500-1.2.1.1-Qo6wtiuPLmUdZOX0KUG9qmHlmwXO3ncvF0dzlZiFn6ue.QbqxSrFaV7JFJG94K.E',cUPMDTk: "\/10010523.pdf?__cf_chl_tk=KKvwHLn0qLYEoSCx__fL8QUDAmodk.a3lSC8WU7eu5E-1739793500-1.0.1.1-TGjb0Z_kAiD_OoD7Svs8jpbz3tCJtNfYpnYxAR.7uGI",cFPWv: 'b',cITimeS: '1739793500',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/10010523.pdf?__cf_chl_f_tk=KKvwHLn0qLYEoSCx__fL8QUDAmodk.a3lSC8WU7eu5E-1739793500-1.0.1.1-TGjb0Z_kAiD_OoD7Svs8jpbz3tCJtNfYpnYxAR.7uGI",md: "3zx0qtLROz2zgBjEE34th6yYX4pNZQ3FfLOFtGs_Y20-1739793500-1.2.1.1-fQYV4fETGS9vfGBC4ps7.qw8.wkFQvwei9Bm0dUuogDcI.r0PmVZ0DYhZA5aXjrgNJLZud7OPDMPkyvV5In0_km9kfIBRRRCW3v1JbAGYsEMnpFSCaW_SmV6ohZTpjZ5Diob1zD2bTlTLHsX65byK4_A.sthiqmjyczH1jVflgx_zu5iyHYQjquimw5luHUFrjkXWU.4fuH.WJYkdwBngH1BwXdJ3j4uUfhjdmg2k3OxbEv5Ap4KkoxGhfXwr_UACEYk2haCTTHrNM2IWKiYrJiOB0U.PtXcFsT_KBLcmH08AFnSLGAfBdAi.oBoV3fPFQja6isfhKxBtgz9nNc_HP2fTb8e5xjfXYUGTkhV2Pauv..NDxyrND9ODwUcirgns89LLsJEAkZSeKBBQ7D6.Hi9t55Csgag6QaLv9m2Mlu0s5__mqXr1MA8adGLK0nk1eUDvrNTMJK7w8mkdVt2HmaQTeO11dAwCXFZeQlFyXF8j6HpPOwZfmEWgv4XzOU0JRxjl9nEX_vJgJH3FucuTN8tX3BbobLDm6qUF3S8GtGhX00UlnGmCwrjbBAixSYIpAkF5fmQfBvRJFDCwiAwnne6atpmDqLHT7XoYNygLMbe6JGvZi9R0v6QZ9bFGhbaHqOa9CB4sK2PH42aBqCkOFDgSLC._.22uUh4Ib7jdsyexLGHV4u8CJ5dBrRsd0c1kaKFWy_GKlU0pEGW5cqElUYgCZ7BTbFexubjIkCSI0E2G8fv82Rze5qL3ZZrY6d8RiRlJtuE_NNKLZLERrmqT_Qxc70u29g5at8rlpgweGyvb_jTuE2l.RdGIkltqBRNiD1p9OaKzdT.t4jYKLi81RnZ7ZaSlpXuLSXZHPTPCPENsCuk0zaT1xsqIa_yvFrSNCeTZ4iAYia5N8guP56vWtDASxtJnT6HJH.MOqgbZTH0JCfcKfMk78EHiFHsNhBSPSAuzGn2G01_R9ShZN6QuX.ki83kGPCS3KizjUZXIyotYjxRsy8pqbWLu2jZvmOcRQErk6VvcEiXr0M0CJYnL9zh4_6Njr0tEq8gbZS8_go1rm2H0CL1Rjp406RkO7_17cyZik6kYMFYcBeKKCo84t_7bnGf7M14w5WIqttIauXqt9dIigMWAmL77oSbU8RQ1q11SoGh4KDo7.Q0i1AaOwt76otTWCbR6kk8VF.TgAccfpuAUf9Z5UU2NV6hgyMuvqNX4q1jiDEx2dCjsoEN6OxIUVH0p9b7.Ese2AJJwPL79Q2L9BY8wFBEs1NSfK4DXEt_muB8jPrEcdeOLGqjag1Wrj9S_H62wc2fZop8ehLUnb7cqP_0JeDj.Me0zpaiCG1QE400_GrlsW0CNNRbc9doV3YhQRW7ID72uZCJFxQzYriBAutu9_Y3eVmjRowNtrp638QV.83cBguHlcdxCARFHVLpmsbn7uDmRkYJ8c7cqxJWL7u7u4bgqpJAg5ld0KXag4H0Iiw9PXViZQ85eQf9YfRMZ4WZACwc.nR56_ME_VRp7vcYxu71B8L_EJ3xmv.CEGHKTa0q9finrS5Phj.tIoJ9jL.Eo7wVGI1FNGOZ_60syZl11AOICrzebYZ1o2zIqSreiWrws5slFBjo.rggVkMMKaNcaQhZpdtJj_jjZrXEWTyEzZD7xj4ChWVlVUmK0Ns7TC8ZBEwtnLqapkJTbhQ.9Y0HapTh2RCiO85M2d2X5jAn.5AASaTy5p0F1az4AeltWSJK4m0Rv41zepxfi.YclFiKVtkHw6usvV0UgfCxfQhnMkWZqLN9V6va532NbT3ZP.8GhG6sfMTCYbKOgJyf7aJqK4V6KNF_0EQlDT5eEjW4sOd72kTXU4jIeiNOCFTOcEgp4ifGqcpdCQqMgssCDyLDR8BzuSBhpFw",mdrd: "_8KTJbOTulxqneAoTiC2VifMt5lEyovpbjKZKGfpUi8-1739793500-1.2.1.1-Yz5H685wTZCqIVz37Xahy7emyBzzYaLbOcPnfEntWMv8Y1qrZ9hIaWQe1UzTEMXQwvV_Ew5DqNGuc4oA_6nqXYRJ7dTza80tMiXehDo9of4AfcGYoR7b6sWfpOZMQ7f8aHlj2ChJW0SyJ_vWa.UVuToEa2xsTXqluUDSEcZT6SA195CQiR2qpS9364ShLRQks8Mnr_i7Sif4MiYxSGOTMzZ9oqWNQaxbZ6ZYo9Gnos4wZRtU6R99wlqrH0snDTxupOulx40961Rmjj7taBm0ByO_GCmbz7YQNQyHiWUJ7huSnf4kx0jG_JKvehqzZZ9b5vscbPJhCCqlQMksQoMcncbCfhx4TFA6lqeXD51FRf3ZYwK88NW_YkD8Qy.6LBgULrMsU9jwQgmpJqiVwS23wcyWJ5_2RfDzCqT4QvS2ya5a04d.ODtXUVnlTDurGa3bxmNz1HYyFPBvMKrvMUnxjokl0SZMZLnjXqBIDUGraYBIf9gwVFn_gMbFLwjwUPUjqeuDHDdHSllpgwumAg8jxSbfYZY5Mi8Q8IZGH3LicPlAcwaY8xf0IOG31rMnqu7QNYIu9auzeC30DT0KTs3nYphf0O3Ydf4JTHcY51dRnBaaNa3o3zlOxBK1N5QDtRCzO6brDiVRlxOcCmJXWUhgQwLZUtz1jZ7cZaH37XDSEZlDwh2rSsefTRDwBiK0gcz6ESBwPlFSNKKjX6.k1BMyhwAalN8yrZycd68Y79Nw_kZ5MW.x7FOp05MGE6vy1bNI6as7u6fmiTqCb7pazKRltPBcPKe.FURGbY9T5QeI0YN.FmNj_xbslRoLi_FoyUAr3v4WRs1GzkjostUtt6y45tk1Krxg7kg70cNR.f.nDwJ4omTCqthcGX6wCvCjH.ssvRM2ymShtsc9obvwXsH3iytLTbrZx14Bns5G8C49IeUO8lIlyE1cf2b4lQzfqbe.05UE7HbCowr5mjlxfzaCbF3uRX3.Qvw_HEsF36yrsFPSZSIVYZwRwvpJDYyxbEc2c0MJmd.lioMcwFzpWZobofbAy.PiOYDYPuySV4EJvELYbnNKdwCYTezUZo2OUFWQckJ3sm4rGrbYgi3ec4Lrq1tO7VkGd14fZF1bRlP1_g2EBPGkkfai4Ua.ljHkyp2roWiPFIVurLu2uFUqo3P9hys.Y9d4OE12cGVEoFbAuG29T3qoBZSqN3M_rUIRIrZMEQvE3cE0iBU30d1Ri1GJp1JH4Iwi81UhCA9XaJ6wPYZ3eGlXcIZ_eyy2ueEIRBij9FMD7oVx4ty87koD2VE4Tj407xawMInlLQek4grlsUU_jZlPJXcv9a96SQ23Q.rd52v83JXZdi8uyi9zc0ossrRGJEQQ7K90HAfQ1h1tnh5KYsGBQS22zvy4gIqztKtMqgL2cdPCT7nb5SXss5Qd70ecKQYKktcRBvCflfdSd.KXKpPggZsyDG2Q8sKyvKlGwWGzwPJyvmM9OShl_GGHkFOr_5efmfKEFy0kg2s6UJbkYTInRP6LR0I11ciUhFg1v0gQs_dxr.AxL26BayM04WdDqksVvsDpcD5u0S7CVrTCQSDykOmlZSCZ2oFFKIL64HW9ZgGaN0j3yuxgc6umOc1J0mfFuwwGbU_2wSwQXeOMcGNq9VS0NC82o6JV1NNzAgB.y5HvbYbnhfn_wbCbMJzejTw_i5diMM3lKT2At7O4DWK2AzMpZ0k9cRL88BwcWCS9BM1P2njHAITNZWSiXVYzhoV4NAwwTQAfmGE6.9aTkSAC3ZJsqFSpXuxTNOGgpUjVRzE3jMjAQJrzgiRdsEZKSKhRbNQb0bpsOv5nxxNt3UeT6hi67s8.Jyu2pY42Cg0Mt5aGcCUKoDumtbDfGMCCqYXqCKO3JTXjvgwoSx4W4yoTQLWqFWnp_LwxYpqJZePSvnZxpintAdUakPvs5jqZvBKhN2CoEBHdhHRXliJNq6gkpmGCoaVkuSgzYCfO"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91359ae1885bfd8b';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, "\/10010523.pdf?__cf_chl_rt_tk=KKvwHLn0qLYEoSCx__fL8QUDAmodk.a3lSC8WU7eu5E-1739793500-1.0.1.1-TGjb0Z_kAiD_OoD7Svs8jpbz3tCJtNfYpnYxAR.7uGI" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>