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="390"></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: 'managed',cRay: '919af0fa3e78fce3',cH: 'pIwruP4TLOc_sL_a4RjW3TIWRclxGZXOjmsODMuOrNQ-1740856088-1.2.1.1-U_48XE.8nQYxumHTIz5q6tyjXmm59KVBHw_JvlL8aoVImbAgpRZ_2fEpTfG5JNen',cUPMDTk: "\/abstracts\/search?q=Di%20Ren&__cf_chl_tk=SYwcrdvcczWx3dmt9GmWdeh6fkOW7aLrZYg4ZkIJer8-1740856088-1.0.1.1-XxuKWW8HAU.oyh2ePa3Xo8AYcxCjje4qB_jn3BpTCfs",cFPWv: 'b',cITimeS: '1740856088',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=Di%20Ren&__cf_chl_f_tk=SYwcrdvcczWx3dmt9GmWdeh6fkOW7aLrZYg4ZkIJer8-1740856088-1.0.1.1-XxuKWW8HAU.oyh2ePa3Xo8AYcxCjje4qB_jn3BpTCfs",md: "oIXIEtsKSfuKcLVFJKIDa8lEyY.xXsFlj1UZEMR9IKo-1740856088-1.2.1.1-5qBCMZgJqzJel3_3nrHLqfSqU89SKm2LlL4XFifBwPr5vdYbFB7G3oaxCrQpyvFyB8JmnSlp9VDXSrIwUnhn_kNm4GJqy.zJzXemf..AQ7gW.8pWzT72Kec8t4g.55icnQH0XIXGiRE3BRA7gPd0dMaZkW0SLas3LJWRl1mTJmbBeZD7EF4aY5ORcUyDkSPRuez0yqJOzl1mP86jf10gemUKiD5B4YtxD0JRuzM25zH7C9AiPrM53If_ub8r5SFR_7dAS2z.0wMz3AviUg1aFEXdrbU_8NczfYoVKylvzAy8cuGKWSjtt.LIY1tw6cd0ly24t0k73E0LKIFAvHOHufJ8SVB_fJxoZwBA9Lh53oeMFrw49bESEi8K67_9SZg7_4t1tWeDG5UhL1gsMYOIVqETXOGgr7zxnSHuRSWrBlmKlulvfH.9yJFz7z_vx5W4ITIa4yrPjKPqW4rwvkZKqO1q0.T35Mgzx0d55SS6rQo.z7LHqeV4SA_ANV20LQS09PgcQQQAO2dZpXtz09DJ__LSMobAMEnkm5Oe1Up8uN3bzZ.6tiTfjpta0FOOOMs1.XK5me_V2kTeVVUpKSkfPTQwaJJq29l5fqVjv4e_cwj2olCIKQFWKU2TMDKSXpPwiGZvXIui13FzuGdSPkARzKnevlBhLkVqKUJBb.sFd3kxAIBqbgo0rCnVbnzacjaRW0mgRtkiZAqYPMxYHrv8TKlbaDu5NA.qyItj_UpMvd3YgLR8kEuRPgbX7Ektbp2q89PsPjwlf14nh0KZLj1DjxgAW8z.NhthUQ7XgG38O1tscaktnASkT6P9DnqkdBhxbAWZJY6efxvhs.x.Cm0cbhruJeTf0u1FZH79viIO4wjVWGu1Ar_V0Yq1DHBBUSkmpzhkwuMKHdPiYO.Vxs1UWVmkty3Oo8q62sJu9.3Ib8mVg6ZJPr2m2wsnTuvBbOEadrltoymYZzK1U8wB0oy5amciXOTlfTYir.QJ_mNDgnBqA46O_Xo7xKzh_x7.FEi0232JACxpTOQwX7DczinDfyeq2.ahQCWh1B.fnmHrSUb1Jx7XNYx3qCGV3vxsV37lxfLIEsdskff5Q4CgKNfEaMAkzu2f7u2AAe.SyZxiTg2UDIqIe8mGUS8cRyCJ2.QPPqV3rS1hTBc7QQlZdvX1u.Y4K_G6OhrNiQEo0ecvpxFGP13Awdet7z3UTywKE6tHVrUglaB_loPKGtLIStozse5p_wfFRX_CDVqA2LaHClyRhOdAc3TeH.FQJi5bfOWO",mdrd: "FTzWABaLeXUiNwuw_CGALLQHW08HpszZKrRZX019Imc-1740856088-1.2.1.1-t9pecrUeAEOFMdcOG6AnYwMfwAr9JK5FiHQO1ApuynFSMaBypUbMcbiFQ.1z4vPN6XK8.gSgdJE3C0cq41Wq7K.9s8x0CgJZSAeMkeGPmDXgsH66n5uPecqJMTwlShjsnHnB7dYuTIqgV1yvgXUHz8S10VVOBEdTKa2Zl11Q6EYuh6VrtygFMsM_Tyrs2qXFTXEYy9vyBPPpz0aRSDd7OE8BkctFKdhTbWeeysqywLRIZkrmV4iodP4JH7fUTBCZcaZPvmLJue6J0L4CYTJcyt8kkBcn3n1M9Rtw1JNTmPFii6HgvhOSceEUzR_.Jy62YuXoZ7nhqoPVZvinpv1bHkL9QKlF31UwfmFi7_mKbZ5RMHg_iAnik6UpMdrRjno.cvXMA1kqT48n_XEpkKK7NTqrzlIhYidp6ktbyrFvKL.zcyCmmDa3AdS_JAu8oYXq0djn434sLD3S_mU2ceF4rwDUMUL.GB_7O0BYNNBvXD9_Z680Xc2LcHBgUw2XBanv_HW_dGY7wcdxS72wMYHjWUIKVCqY8JVUPB27mPeO9ZUPbKf7BTYyTWnGiDeH1PEnHot4ZVy8SEIBtjRlxpb8Lv_186j1tSZ2UVb8vr3V3t0PLIA6Hs8.KPKmWVdsII0UHcnwknnPUOqmxr0eN5O33z_.ec8JSiQ4zS.M4cDkxed31dhA0UI89_V45hYYFNlHiB79XOp.9lFNVFCs8ivN4XiYqboTXlIwtWotwPP8AojrP5KJ1M2p1Gy8X8SYRIHF25AS48UqDrp7Rc4mXLkZuR7JlUFQqjlSiEue_XbPU0RPQlul_LnirNWZHjdXopb0uuXsYwa4YXlfPe0yf5hs2CGGbe_FwCFPZ8TmCulrU4k9.t.RbxM0g5XBC98n.8i8gja.RpsrxJRgycYBeu3f0dsFky83NqAD1PGWSDq4zxJMBI_2iuTxWfttOGviUMmscd.nur9Ketebe9iJQv4zV5DjP4S1DdySKL7pEoHuAGXDO8u7LrKMOc2lzJJqq00F0c7PWKnT2XiT9MBcEe0H3DgDULLVMlDGHqLiO5P8X4hThjiK7n33jcYhwiU02ScWo3lJRcttKx8fK3.fUc8ShQ7bmTabMygCJJTBgwg7zQN1QUhzGi17RyZaIVjHgUZWji6NPhdu8_GUSnOjA2B5VHYqzMRib8PCTp6VrHPj0sQERcHIJobbhr7kj3QQyPItzgJ4_OcIjayNw1thUSyfClYIEskctsxS1HhQNylmeRCCbyxizG.I.eXL4jFj5sOOMxppYJsWhqgLvhmZRiP7PIlOXM0LexKQt_pZ6WgM7wS_.PrNv_eY7iic9QhME8vFRW8r0cUKe9xarNtxSFOprosRjfWdUAVufdBjNlfSM74_XOGSq8dUBz9YFYeUrm30._4w5TVWto2WxJbvsjdv0tEemIjLd7e.nGQ8Sj_fIMIFq.D6xfUPV2ekUllmhNmgR.quQvJ8mkwEq8BLzpENb7IAAWkW3ELAWx5L2HkQ_JnZkEVvLeS9D.7RSoclm1ZoAHGZ2.WLxhAMg9RX1FbnlN5PgvcOr2I5WZInuEoIJ5ZYMldKZOymQdzVN1xlo3n6013zut8UYarNRslBn_AGfV1CwdIk8v9UgOQOqPaUCwqDxQq5XmLSUdyJCirpr4Iln30c8RZmTK5gh3xinyuAwgf625I6w0lKOxjR_dLBbKAo.vC.hE1P2JNVlE53UuzBnWh4txEtbQzHYhNCLPBX.HwvQ.z0P8.WEj2N3ZDYqsQiAKf9CCOdUzSI7BMluqkP5UkB0_8b1GNI6kyyVUfwc2gDOF0qVz03QXGdiS9r7LnNY5OMeSOwcxtBHbVX6f4ITcHVGnw2yOOzYbGsQrcGkXGbGGk4bvaGaM3hQC3QEQwc7hheIvaFymtmSjoRFDWiFLnLolPYHWhprdJ_mclC2k63kSaJzt5ee_1WuvtawyoG30pJAeIfPvgVfhtfA0hfp7UJ3GGHqpbkWrMlvZ0i5Q"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=919af0fa3e78fce3';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=Di%20Ren&__cf_chl_rt_tk=SYwcrdvcczWx3dmt9GmWdeh6fkOW7aLrZYg4ZkIJer8-1740856088-1.0.1.1-XxuKWW8HAU.oyh2ePa3Xo8AYcxCjje4qB_jn3BpTCfs" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>