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,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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: '9134e8fc783191b9',cH: 'P0RylUbW_tUvVeMpqeqnSGc9KZi2MpgsVYbG4FiMwZE-1739786213-1.2.1.1-TO78_cMwDnF0mA4yGRvNg0IRBUKPNdbXwikBjL4Il2Frt_a1ZHBcAbvYSeNQPV_b',cUPMDTk: "\/search?q=cotton&__cf_chl_tk=xeMvhOWzockY6dCwaZ74UobtERqAhu8Ki4erVCYNBjs-1739786213-1.0.1.1-n798QfvdNxfXZW9KKZCOo6A8ab_IoDEjTHvDC6xT5hA",cFPWv: 'b',cITimeS: '1739786213',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/search?q=cotton&__cf_chl_f_tk=xeMvhOWzockY6dCwaZ74UobtERqAhu8Ki4erVCYNBjs-1739786213-1.0.1.1-n798QfvdNxfXZW9KKZCOo6A8ab_IoDEjTHvDC6xT5hA",md: "blcfclgU5HCd.p0iQNfd4PSMH0AZpXmdVTv8WONeGdo-1739786213-1.2.1.1-ivOOYdARtwlTeNxzdoMknwnokcHXEpwPzM4AOfwEpKWQaGDh8G70lO9X1viYxiemgv1jZudV3VCp.WWZCU9UldkGTWCDmkvVWgLnOzBcHsoXcDc.g4iwR1hduTh7iIIjUiLA2JFopvHJhQdYbmr0122aHepVsuyKoxHxgwX.hxzJgD3InPWujdtGkWBCUNDRk7oyjkXbkmW.VWdnf36Z5CGbt7bZxgq3iS9v2n5xXf1QnV.h6mLdMOvpbxmwo_iWyOdREfQ1Bak8IQCKvWMBRCZgzLjqmqpSJZNi2YfrhHflkq9oftMkKlWH9gd.4XG8FBKFZRRLkxoP7EdZo9xdnQKEK.iQBso6_aC6hN5neN_kqD_ln55zktgBldt0xWfqgnopHqC9mVd2ngYzDHQ2E2ZrCGtkV7Deww7pApLGr2ZfM1ZsLxtXgMWrIYJAuxyToz4PjfeWzvMPThaWCnnC61hCq46RJxx4qx1gIJpBWKkK1j4GanF.ytMYauC7dpeoNkJF3dsdXaecLokDtz_nZgF.BXmdbsjDJaCXXYbGF6hlM8XObrmBz_FwgAYONgIngsLfgNzvNlbDiaMwFD_CTcvINDch0OmLEkfk8sXKwiuAMQ_ipUA9y6I9_J3vjm0sb2h1T61ILzsyUvCfcBTJtUYlehOyY9_N9kGoLqyOqF39bhdp89IseisfYOcK8EGRyaG2jxv8v9PtLd8FjauPtvYZb0aj3ci4hiDT6IqqO65uG4RJkpDjlTDt9iC0ujdBemNON9IHDa_9qULId69yB5hZoDrIiPNwZyseeH.x6XOMOFZSn.SPD3k33DwbHH43LCVpTZ78tiEAu4vSuLGVK__7iTzKgG3kgpHaQr7oHv3OylYFAac0bXNEY4.EmD9oISUj.X24nEJdxx8eg84D4tHP.7wZxjRDgykvqxYv9hw8W98.JaiRllRDa0AI9A04aBTNXn8B.GcOjx1z9lfM1V8kcATMuuWZLpqtHjN9B5X3OSkcAs4H6tsAm3CMQsMjmDmh2uZc5FIoQSoLMiDuP9vlhxu3zBxRA8i4GpS.cTd5tefk8p4R44Vr9rO2msN40nIVY_Rn0g4fmW7AbcDrXm6cpo9xy254OjamZDGY7cFpOtVhPCc1EEmewsKp0wLB3w.bzSsZLn9qLpyTaVpxFVUuIzvNk1F.vuu2U2.MLsu5v1aJXZBfEHvy451mEcxh0FiqG6aSzRTSwseUhActSj2LAbDdzva94gkINKP9UkowTH1KCed0MNMbp_YOBLzn2zSc_oLMPYojLlj6n8w6C16oNsfGpe7asITBzxxr9bMjZivUhZRiggM1Rd1TiyFxoFpyj9MYSCgexuxG3Rod1b_K6pykPrOS_pmidpI7jvV_v1vifeTLpVekj_OJwlIy1ah0VXeyp_jh3lTcB8g7AN5SW3JpwevdApLqp9P.41TW2D0SunUrUbLiG6aV5Jj7c1CT.B2KXOrWnEP7X7JzXWpZLTTFN0bdQ8z.yeatalL8uZFU10qFMSZOGVPXqCQKMglN18zx28_EkJSzRvvvoKclxCclom1yT5Ab6d5iWVxLd70W7UxUPHHtUa5qkKgRFU7vkWDJxEurg6WdVo4Sl9VR.vXR.AQV3N3hIQTxpI9GLN.3REG2HKTGakkqwIgt6sXTYXqJuWQfraRZUB6ExafMO4yucduK5O5rpCXqKqg9rGH4PyvY76J1BWlGCu55LFQYgfoBXplkaj0imi_lhy07jkmCcMcQ2sMSkeWyHUipN_rXx0nBpGq36QgLhLRx1KX0wHlbgmIv_q1S81u2KOYeSdUHh7nLQKs4MHalIkk.CYDRJJTk0OlGohYGLKB314GvyZIruRABP2O5tSorLDBNqstgBBlXYyNsFsO3eTg",mdrd: "x1D.NBHt0lnvmXWX1W1kEb37xt7ih7w7hPhsQdefFPU-1739786213-1.2.1.1-_2LfHVgbm5mmrKlDwdyljQYpCwqoLti8A2eg60klOCSVMHGprBfo9BG9Szswvh53HEJqPI0JKFrOJxvg0Q3fTTxlRIKSmyUcTr_1FEHQuYhRTFn67XbUyly7M1WqNQ0Yqq25m5P96tlAJ1TftNt_T1eoPnMqzy25AgH.nZ5s1H4jndsRH_YWOwjWfG2oi6Z62Lfi5HR95WyWyh_aOXM.yYW2ttjsUhgaGTLeKKaQYA3UK63A0P.HDL0Ads9vwiP7rapqIrb6ShUhNA_lUHnciSWcLj6x7f1fJDnvlS4Tq.UqXxfhoVW_DKKuuD0fnLWyU4fUGCd8zpdgCsv9wFjMG1Vlxfbkt0QW1jgMiEfLQSrtdFANMYHoswUfRb8oKiCSVxrYEtrZypHNmlxYknllha4yTPVAVV7kdJZ.KPMrZn0ycjlpdp7fqb8rITJ.6zeVmNZ9J2mxmrwQMcNMlanRptZAlJgp7WXJgf2.LKFzdvD6utEexrY4LexeaG9zzO1nW0QazE64jV4zSeVkm_pkoHBoUqZGAflIp0GsY_wD3K3CKV5xCAZC5QJfbwVGQGsSbh0sMXlHCZa7FmVR4VGAYr0q1O3JBoseqGxznnbQ5nIgeDUwuNVyxWW6TV84F4SnhYNMrJ3zAxnep9RWtFWxQHWY3RFs14SvNhQOQcBdlAA9A.rvBksl9ST8qZuD1tCT4tR0PuIrBhvvoZD2Fs.W9G4RqiDQELipODJjogK9pxv.LNE2pqJFMfblhZqfJUsFcwujN2tI4CNQ40MOfdVLoKW30iogUzwVAdNXieCw3ZfHfVLgPL_rooMbJGjcFxttwJ3gH868bGekdQQzid1Qt6sKdhRIdaiMYMETPQPVgPT1PSGRg9q5_s1ISgn6jI87UH.jwvEO0jqZZlu.J4Nao.8WAyc5JujSyCuTEuVrhJaO8NP2rzWZ144Vd_sOIYhrOge516LpRoxjUdRPd.Swqn7G5ajoLn8PaKpnCO6Wb0voutL.gCqEUiCDRPkrrYv4ZLNrqK3zqYLUTJLRbr9wLAZWHxADAh6WCBZBImNFPHxaO8eAIYDiQZfVjoa.3cOarqYVfbQ3LZCg6Wscnk1wqXcax2K31ocuwc7cc6ViNUx2qqireEXRr69xWCiavH5gaBaJhSUBN8ouUxtdAB6hoQQv11HrBeAh41OTZdWwDDz65wzmIZGCK0BBY8S1_ERWWvc1AgP8habU37WJEx1cbKSivVgprnQg61wDRnD0N0KOxuGrSoRypb4xN9dHO6FCGFVetokiVZ9txZPM5hCf8CZPF_NYQ2zZNUnp6EayDtQRqtwOxR37H4x1JmKJx9JJ_2qRckx3TCot.83iq4JtYaUvwGHc44AXEsTQM31K2rnbWHPxuUeabzkcMahvz3E6wZZFrrrn2dv81BXvoL02fn7C51T_VRAPRlPRWPag1._64ZpJhEnbv8UEgCdXC1.iv22u2azk3ia87XL0ROElLwtUoMp87KJ34O9c1uj6lh5iB0uO099_HRPwPb4vNUuYEzqfUd1azzcqT.0LNJM8IMHRSbJxgVQssKzFIqjtzdTi4QWhlV5rChLqlo32Xi4vTr9MRyi4IBQc9HcbVO2ws3ZvjKvxQzzLGmbSwDc3tcuG4Ql5iv2pM3jU0eBY7sY0eV.RnyDLQ48cwwMvs6iILeLz715hsuI9hU1CJdJHTQMW5l8Pbi0yzKfYdgUesAjL16jdxT.kdbonw6KTn_RY3zt1vmfXoPYytdalA4MDnkJQmxDcy3F0bbDZk4BUUKbWhJDUxgfUGTvZrKcPGiyDhUxCO9roh4r5M86BOsFxwjDkKbVcPIQXlZoORmbnrcMqfL68vgoJYy6fvWDOeL8AUuEGtifOfXURpK5sGs9YCbWnW3gMhTpHCm5LBbjLdzCTjT9O1PijCVk3Y2sVGSRCQjUW1Tr4NUH3vuzLsLsIrszz0A0LbibvX067xyb_NXxN"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9134e8fc783191b9';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, "\/search?q=cotton&__cf_chl_rt_tk=xeMvhOWzockY6dCwaZ74UobtERqAhu8Ki4erVCYNBjs-1739786213-1.0.1.1-n798QfvdNxfXZW9KKZCOo6A8ab_IoDEjTHvDC6xT5hA" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>