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: '9133c48b1fe6fe0b',cH: 'Bk8d7B0WvpBRXhA1TzvzEGgW2y0LlPaNXLNo74x4vas-1739774235-1.2.1.1-YscgEcWfzAAG.iGPSn3oLdS4S7vBTi0rHI9zudKH04SuulhQZDB3A4U8TKHJ3bdp',cUPMDTk: "\/search?q=H.%20Balan&__cf_chl_tk=BJ4ye..wr6qPNwgDUzt4_bIP7m65h_8yRfHkmsSZHLM-1739774235-1.0.1.1-ONoF.RdSoZ_czaYGPAV1j2TJ3HHOQ7UI74VoEeNWaYo",cFPWv: 'b',cITimeS: '1739774235',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/search?q=H.%20Balan&__cf_chl_f_tk=BJ4ye..wr6qPNwgDUzt4_bIP7m65h_8yRfHkmsSZHLM-1739774235-1.0.1.1-ONoF.RdSoZ_czaYGPAV1j2TJ3HHOQ7UI74VoEeNWaYo",md: "a0HYLry_uPWjV4Sw2Ui5Fo35uv0x0dtDiiku64qP0W8-1739774235-1.2.1.1-Vm546kLFT1sID5WYo6a2iWCa9D21Ughf9qvdggKVi3JtxA4bjjW4i9W4TC19bW.51DWZ8cToyhDDoCaX1MmY8wfK9w7dWpC65pkjBVJ7eFrMn9SayvfUr4xwfxb.TVQjQrzeROQO6pBBm0fJJfwaro.9NnyhkJH0RFz.ziRNsuF6NTnQwbFmC_dM.C9b_quA.WZVFlnZXDcKSMKhPSNCFJZ5sd_b2piXq9C9nPISab57Y3mzrwgTL4ml5yUCC38qOr7aFIMo1w0bk0ez6a6bf7e3Vv.6FzoPq.KsFc5XlZzLQL4Zz16gSnPuq2Uhb0nzK2rCAY7.YnSdRVs7tTHDUshAuNzwzoVyl0cKLbWx8_V8cLeudjDN.lczlj2jWmMp7_wq1fFXnSUPnbNMZVTpGQGq4CCBtByBSgERVyHjprZ5oACiQCaLP3lh5Tkhok7NjbUIkhonQZgM13a8DLoNkpwQXlXs9X_shsUZ9RQ98pL5sumJgeWKCK8bcahZ1TckCe2ndPHuarBi.PLqJD9UFnauCd7grRpeIsF3cdme2FI1y6XMRKv7jdsoqSVBbOxpP8grr1kg6hZaRM4hgNJni8ZbXoYFWPLlrXslHE0_HL04sji4plaQo6060Iv4bH0v1ZFM6FMaYCVIOgYj7ZWMOejjkMGtwvVYX6JZnL8F4Ur57oKwKcOPmliihmshfchAd1qR6XXuHaoSnK_ARPA0MGBhkYjK5MOuSA7_j4V.QVSOZYAT7YhkamnZNnQeo8QYTfhnrLovdoB4JpiMeUwyfRA2pNZFXYrPDTbrueehTk6fjtHVihsm.jDj7HYlkf_jQjT03JUrM3H3c_QeAHO5uZKylMElKUUb.Miw5bFfP1EM8ZOlwzw3zBif2JSr9lKORpn97lX4tthfPBFq7M7p.95cZ4sHF1ynbh5EwGTD99.LMUoe5p9X8TCBPxJfp6SGp6MnRkZiWZSvBk3t5RSvE9t9bIk8ZxBeEGO.2HkRpg3TkgY9sKXHDLC8u1OTQ_fMSilzCPpWSy1O2.1VIsTbZnUp_i959.vniMFdIsdQsanIvrIcikeMRbNGSwO1rLPG.W0NJWrkTupOelJFx2ni8KBjc8Wz8HYSgi9Sl8y0dOipQNxymC4M3xvZbCu.IwZPbptUOG.bjZ8C2ur7VTvZ.DroEXPgu.xr6wY77UEBkNIHHRYOtHgisCr43mwUhHo43n.e_GBdwAbZhx69.fzggrMMZ4tIxujPQY0D5jl2J7x3GsEvrIeCFvV4l7wBkwUxsv3ZBBV7Fnx_.5PbK3Dop7wZfbXuoUDkpALnBmC2Bt9s36tDAWN.XXUiTqZFvw7gWzJ.2rIEERpVXS2uPRu9sMD.6X19ChxKbEAoAsdf4C01qUg.2nm9fAxtOT4.GPhecpEwLGyiCqn8vKI7y4viOWxbWyc.LIhZ.SkZFLpTDM5LE3bYMGiss7wPyqDhUZlXBQxl1ssX4qvrVK.Aa.mrly7tyGOrCXOot6FFATcIMAayVSEAZrZJf4sIO7WwAZEtADu3QpewPHBUut_kG8VBPC7WGhMod0ECgmSFWPoo8AHxfGwsmBDCLd4ZK5AciiI232Y.fpRZ1.58MBNzp4xhrirT4R6Xqn78dIaBC6TZtSSm0_g5C.t0Cea9upbHwX.4jLXFTArFBU2h5GHOGhBEsS41mpyS4aUnlpbj60gaHUxXJoEBSb5kLPqx3IbcFV9ydTvfMt6IV5ov8mAsxlqoQS55mpbUHGcJMxby7hPXvZT71AFoVmOxvYkYIsgsmJM_zrbVe0MIo4.F0aCf1VWQao_CoPV6ODIBIj58JaOk_XcBsiB8.R.pORMZKkBz3sy_CLhI7rf3hyDOXNXd8K2bcg8Arljks6bJUoZNdcp00jr3_LFlvUqvPOJBWc_r99bV",mdrd: "67GN3WYKEQpDjejdkoSYxoIiAO6NoLHGmF7D3o61N8U-1739774235-1.2.1.1-Zmvs18A52a8fEpgf_6C16CaoL9j8bzvyn5pF8vSziImcGg6v1NUPadxj7sdTkUrrH9PIy3dzStumxmVQfBCAOyiBEEWfAzshJ._YEja1MHPS3tfyLNIJb1Dba1ar0Bbnzov0UX74VKyw4sHgacpAfPflzIB3gqj496LQ_DIvaqt35uUhHCBLccuyFGZE9rAD6EbrAeRf_yMVUPJ61TyQ08R6k4gWwqeUooIFQjTo62zEv5KA7p_1YczfnwAMZRD6fr4R1oP_SM5cnjurEOKyBNTfqrpNqSdG0zfpFgOBsuB.C2fihedXt8vIrrsYD5kPsio3vZvrhLZQzTt6tDn2WjO6HZPfKyMXPy3gxOnojM1OEhmdNPWhGbwyelfdvB.GbDXnZmri98PfxG.dbXFTt72wa0x5PslLOMcWbKhLI0ALxGvXqKpShW2LUSAAM3vGKYgTEfEbXS6DLx1YwhO7t7fbGtQziTr0TXb2Q1P6hplhzn2tW0GWkFsjwDnbfNUW_iryDoP3OUzw2.7Z4Dfhc6pXXdsSoJej2RopOt.szBKUUlRxW_VMUoeIT4tVKmv8qX054POsbrFY.u0w28wtlRSK8ZXcXMoFqrxTpI8k8KRjJPKeJVXKpFjehN4URoBpwTVHge3_kd2vFKkqL8f.DZjTKvxfBhIRRN.7mDYcfHaUgoEUKy6.Arf2Lspnddggu8fLIN4NVeKCesW7vl635ZfLQbU.ETk3mv6L4HAhsI1bKNz.owVUw503VURb28MoLJZHQve9fEIyeiv7fPnC4W0qTOSfIsrUwmHaG8vM1WUyOY93sDqymRPG..5tBH2tIY3k_KGRQAsVpteUDLwgSjmbh1sXqC.iHB_BHp5jIC.AxjHpcjLHjKsdZAQR57NJU5n5ELeil8KvO1Y5_0h2ibWmQ.Af0kRo4X2C0ztYxRkOI8D1YfrD3IAVQ_oFvlPoXqWKdpQUGNj4YMlBBZJs4XNxRDE_XKDWCwJUMQJlUw_0tqO4IUno1ejZfDGciahE8O4CbbRbX_.I0ZfqoFtdd.lMvD3c0E7VKXPjSIsiu7PNC0PFnawZkJcUAYdMy4GAGAG_DbG6FHNZewaT2NNhgePvviIWVDmZmWMcheAbW7cGYWTEo2diaR4f8UHWmaNHQq7HIN0gM_Oy51bxZu12Yif4LhKk0i9xZpoU7FVjv.ojxpbZNfW3BEJZmyYMf4slPgHyiYn1lhTzruXnTsrNg4MudyFP3a_b8wGnaK02Wq.7NZMUk.H.eTTK1Dqs4Gh6WrilrpmVmTWj.f4n0PHjaRXsYT8ZO8S9VbejvFUghS.Hm7gc5uVlEw8ejLSypGwWFeedPh_gK5DKZ.MrfsPKdvzzRmSFBdl.emSxDo1T.d_gTcnJ5myxJzcnKePaBgSW_BpuaUTXxSEROOiK7VC8TYgMEmIeDevo70MqH7Hv8ieYC6bp3.5Qxv.7irn8L9EyatsV8uKu0.vCGsRiZ.eiqH.PQOXSXTbdTtDVlOCLPl5Q6jzL0TYfRaqwTU_m73FI4y6FxIq2UL8zC_4TVbaUyShGq8vCtrFrvjqcKpLryhDBaVRMx7F9lDSlWCBUYIfHqtSFNPOTxf4PPGd9zRi0fOUF_6_AcGRZ7v_HAI7pplKQo3gPlAR5Zb1ByykcqdqvDSfZw2LBkBohZt6Do.Cu_WmqAuieH0szvDeOizdKW7qPBjPRDxOA6tDEMpCLyBN3WgDlnrOpLaTLwPfG4xMHy3Xe62CwP95yXmfI2ZXz.JboooZh_HuR9plv6d_UlCpKhDRIoyf2iGXW.dVTWtreWJVyx.K9NyzhEgYldGDpC_zfcpOyJakNtpjclujSQ9OO2ghdOQAgqoXplJExdbY7VpAoO9lTWYCPN_xlJmyeQ6lxvFEGD60C6a2ejSrp18WXdKK1k.HDqgbDhtRC83U4PQFisTvu3ErNNphVcfkLeJGuYTmiQWtic0hkbzxLl6mb"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9133c48b1fe6fe0b';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=H.%20Balan&__cf_chl_rt_tk=BJ4ye..wr6qPNwgDUzt4_bIP7m65h_8yRfHkmsSZHLM-1739774235-1.0.1.1-ONoF.RdSoZ_czaYGPAV1j2TJ3HHOQ7UI74VoEeNWaYo" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>