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: '913500b54c74ce17',cH: 'qkZyQxUau_U4DJ6461a2qyJ9.yjsNcXXy0zhAw4trXM-1739787185-1.2.1.1-m1bt29k86qPTbshS79BgbxByNM7o45Ul2XXLHOv6wgPEQMfi6hcJ1nhDouJ6428c',cUPMDTk: "\/abstracts\/search?q=gas%20sensing%20properties&__cf_chl_tk=7eHtKr.O6XlZF3ipGGYUwwQrxbH2tpwqFInVA1FXRZ4-1739787185-1.0.1.1-vDuD5VkujcoOIqCEnTsHdbJlVrTW1P8ijJCu8F3U0pM",cFPWv: 'b',cITimeS: '1739787185',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=gas%20sensing%20properties&__cf_chl_f_tk=7eHtKr.O6XlZF3ipGGYUwwQrxbH2tpwqFInVA1FXRZ4-1739787185-1.0.1.1-vDuD5VkujcoOIqCEnTsHdbJlVrTW1P8ijJCu8F3U0pM",md: "3gcHzDYynrxKC8tVLosirzSnnZIr9wJpuEdJpfqSEuw-1739787185-1.2.1.1-gRUHfJVCkYmwv9AAoMP7Vb7723jp..zmTvtH6RlmQtd6Cddm0RC9Jld9.jJ4w3MxGCj74vhAtS3jFAJUgLVuG_n9ZBS1vpLXLBrIlbg0v547se.PQiTd_JzLlN6dRlNijTkeN1a7RYbaPbizNsR4v1my3SE00Nav6F9kYno.oWF.y4yEiY0jn4bkGbkzYGkegB08A_Q2z825bd0RauSrouXA5BEIiWvSZdbuYjEmUzfnvdM8UzNCZxo5ekMSilBlHC_Z7jbtuzH.0LlF5nEBRTBKNr.joXRwRXuvBR.PRyB8pNexm.uK1dfZ4eaHQy26KWCccoUaT0UAeqXjsSvnSGyxewl_Tn._fV_4uQxbj0UFcD_DJYcAxLFs106ikIzO_EgX3kU8TKsFTwJ7mmbD1gfPZtpkR1KNAG4AIa8mVzsxLlzVmgZgRWB.i6TOTyQHV53Q6Ec1kYUgGTBqenW4Ammiezz2zAOH2cUc2.uGartBRKu1b2F1xX0QevbtOtNUQPoYdWElyRo.TCVMfeHT_ymu_8GW8XUXHW1zY0oATG85cSbVLiba5B.FP8kInY4sdRKHpEKgKor91mxViGRw.njuFtpWuNA4VS3QDEjLfPsNfoy.Dc9ahG7gMgQ2XtMoCv4.5tLME0NKKKScnqVjdEEVlp2SGiVvM8uKg6cTYv0kL6ZsOE7GTXokihHt_B1OO77MZs_hqX771n3oMnljMk73yA4Qqht3pV.KWcob0zqYSlQ9x4iFBVj3Lr.DXvXUbU07NtLH6uzd7IXUhATBFpo64aDgaYXs7Q.K6AgKjNW2eCjFdlPgZYBusbaKf3YChf7XLMEZaPL13pqUXAKejJOITtmelwOAFMpYxFnn27YBNH4gVjRRw3iDgWPqB.kEaJAp1AQeHpq0kdr26lYzISbqLGYKUkLQwANYqCJAHuTrBo3bLMO.YZiVs4VMoO1VoVBr69YVnbxT_DQoHRKYl3W.dTcc42V16feBcF017C5w8vq2.W7rx9.K0kuB2fyMZVlZUELtTNsiMvMMYT0tUBc0UYmzS7xwrXpeYly1Z6yxZ6oXJ3GfiEib9J_UCocqph_J9gn4drkztvby2_lFE.06e8ToVOI8SCkngTVewJVY63VYdBGfEowDP50S6Mb0H9KFReveuw1dILNYzSlAALd6IOOqf_a80gibPMz.PzIqlGjFLiEzgVRdQIdJhD2L7cb0KR.4UndSAnIhyEfkAOM8TmYng7v8zByAPAnZBIVNJXplMLwiG_ihDcYJSKV5ODas6vSpqaPzCuychC0x6ZXiFXorIC54yeCIL.0yxkJI4NO1bzO9HtwXCwbizhu9d2HdbRqO6sEZlV48IypJ5qalUOCdAyWXCl4jTZSKV9zUAaFAkRINeyADBrtkt2lQevv1RDSU_6QGxoy.w84ABe.5VeshGnZjNmuA9gtpia7.ObCVXhpIh_4NeVBxKjOLTDxvGLV_yQhhZNPidW8D8VvwdTxDU8zibQRzagUFwXlrD97buLI32m1GdnNmqE2Nvyne.qpQKZKZrU_pJrHvMJIlonN4wzfaQW7yrUAImWSVXy6xNU6Vvn1PazcOnF4X6VdUWNNFO9f24zQosd.eC5H55mYDYEYogq.yEDd1_SQfqHR65oA7UnnMyEKPL73s7ebcNL1Ew_s36mZZCk7hutBLVNC4_AaPlp_L7mKjvU4.AE1Td989AfmFlIMDBtCx0msMwz_Z_0BJhd6kbkYXVNVcYycGHMbxg1jz5O79ONv8Pl9GatuqZ_j7CFPEQ7JOmbb.HSTVyaFAD59znczqrrikzfVlNYsxQ2echx9TK6IgnXWfvD3IJZCwxQEcnFKgNAftG6GRoULWcijtUyh0YHuC_h95hKD6pTfsF.MA5f5blLcDKdaxVWcYrZbOGxDgU755kyw.vjbgVIM0zoSmKnxuJ78bBwL9cR_pmQZQM3Qkwla0ARvmkv9JUuN9IO9k",mdrd: "rY3roL5vjQ_fiiSX1.WA5IVBFO0E2_yaPltGy.QNklw-1739787185-1.2.1.1-FfSlIBAkG2vHQTd80F.Q51QLOB6Z0IfBTJ35otX9Nq5Yvd5Uh54_KNDtZXXI7zop8w5fqWATLM2x_1boI5NB1mSMX4hHYndjdC4pVExogVf2Ccr36ScttZFc_i9ys2qKTCKsPiSQNQ9i9Pu1FE71Nqvrm2tqKSre5b7l8bQJTAeFMl7Yg.iIE.7GpOyberMKs26M1vAwD_8vlArXvJOMMgiM9btAj2ZghWlGdhZ2RsLHItNZejbU8pLDEOtKih5rxS6zXPAas0GLS.b7VXoxX4lLKgDkTwd3y085aWjZSbF_SszmiLEf78uFHJpamtLe33WFP45Zabb9QCrRAND8xPHF1dvW4IdnqfRiOfhHN82Jhdzl_FYz7WsmtPSrPzeV.SlHi.uE2ayWK5lwSoMNPU1J.eCUkbRKVdesHUqmOalfKZNBqSOAj4QRqwgiTsGbqVg7SnPgDka762vMlKhO.7Mmx2x0Ao_aeleYsA9p3H8RxRj86N0yetOgmgWjDa_N2JpRfR3l8x_VldrpF6vTEYtvw6iXKY96N7yhqSz8IS0_jgD_RndVqLOPkeKKtRUvLATZEzpu67l1MH8BQHcdRrhsqtc9M3wT6WZMhH4GZ5ndSVpWWM6PTvovoWNZjNYNJ_pofZg0YjbQd_nhwGG8L8YJBPMwHAs.Pdo.lto7sK44saxbM9aK3C2yNiXfvQ2Zmls0Fnrz8nFF.HCk9_p8FrUgTzZ6zgJErIOQWgUMXiR6V4wVnBM2X3kDbyxrc4NBeAGrjCz3byLudMb4Cr9h0nrIxadC.gx4WXrLxHeEURc.sryMgtBq7iK1ylKN_OID6DwrBA2rQythwtMWVIE9sPULm7V9S_dZ6RLV02YRHLuJKGxk5TO7u6clneO98ew13P1gCp3gUbCtN72Tkvho9J9NwuMSH8pf8i.rHs_UMGYU4mVRRAhhgfysoukebnU60bEGKpWvo44yIV5PxmDgta9wc_.uaBGxEGoQ02Iu7mD4GdnZbLXrljCFh9gX4FoOWRcb3WO0P_K65F1FP8_dSSy25CyZ8vc9nFazhZ_JrVR_h7Qi8qonOuCcE3P9fnNbMoqKwSTzZFXd97Qa8l..RSbDTHE40jZP5eS7cJhL0KROpKRxsvDxobMLhXJRqpPGyLAfH1g.uiVqorKoNrobrFqCRaP04huT2DWccREC3jiBSKcvFaxexdMSlwmy1OzGQPkKrKu95Fmq5CCDhWKRKWD_m1jhwjrp5BveR2XcFCMeaJ5h68iFElQX2m_bGPOn3f74tYT765qO5UJzO9nj6au82Jehc1Z_BSqVahXrr66tOJvSL0hfIlNlBnQ9fCsbsplyVSfb.nqSlYKTTzEWv02iWdyBovH0Y.GCY_J0csK_qeYMQDUhGSpuMUDj_5ne6oa8vC0x9K0yflMOqyUJRr1CrYonqyq9CB0Citay4igyU3jasIMeUX.UNzx1mG7try8xaBP2Ic6PHIpHMjvvbUbuBwmQ61hGS3Vi.OWkIghq3GDTfOJVq8Q7hO.6yLMiq9tn7fDo2wpv0P4LJolA1UZ.7ZDJPpun.y8h2fYWajiTRKJkwgmgFkWR3l3tBn5ZiWQwbLF8PeUA7fKT.83LS451j7lllniF3UVhAEES14eUtdwleiraje.QGcmFWBJ4rIVtHfEWMFyDJFQJv9ceTpgaDG5Z69t_0idTZxQJ8sXMi4V.PqR0G4PVw7l844LHmcA7JJJO.Uul5ORTloReJ0W52Pz0VWCRkw42O8cwXHm50HYy0zlOCSufSyQArBGJVQsawstYZBDMNkPYmDwswj9uwZX3z6J4ATN.ars8GBmYArkiWK8MiAuxKcEfBDnjw5UBSCIBXg.B2ks.8QNZ6IMkgIctOlyaY2aRzvZvtcclsOL01YSlSI2OCW24vWa4zpkx981oN7TNdXtWXZjIuG4a2dVrRiEUDYXVDBr3QxFPsi_9mypldEHRi7X99qfZ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=913500b54c74ce17';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=gas%20sensing%20properties&__cf_chl_rt_tk=7eHtKr.O6XlZF3ipGGYUwwQrxbH2tpwqFInVA1FXRZ4-1739787185-1.0.1.1-vDuD5VkujcoOIqCEnTsHdbJlVrTW1P8ijJCu8F3U0pM" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>