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,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: '913398733ef3ce7d',cH: 'v4b1nvn_lhMXerGoUm3pAkUapl1OyT85KE7BhKn4KJ8-1739772429-1.2.1.1-ghad0sqS4vpj0K6fNhjX3bgtTB1ZmdPY_t9BOwh1wz080pGJAALCs.ROQuRI1oJf',cUPMDTk: "\/abstracts\/search?q=ultrasonic%20imaging&__cf_chl_tk=KMsd7c31Pi_j45S3YY7rEQ4nylA2nY.atzj2BDwSOzM-1739772429-1.0.1.1-xqEfaet8_swZVmwsrYs8g9BoV8kMx47Y3BFaOAywmmY",cFPWv: 'b',cITimeS: '1739772429',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=ultrasonic%20imaging&__cf_chl_f_tk=KMsd7c31Pi_j45S3YY7rEQ4nylA2nY.atzj2BDwSOzM-1739772429-1.0.1.1-xqEfaet8_swZVmwsrYs8g9BoV8kMx47Y3BFaOAywmmY",md: "L7WCd9IJQdBMqglXAZJGWKDR8aCc5rtHKGflBb3uplk-1739772429-1.2.1.1-dMYrO79aqPeFDHwCCXk2TYcDp7dlQT.okk9Fl0aNYjPcHS3dfGE8O3n2KsdWfTzLmp4sLPXiagKJK6vEF2JdjoXZT3.qwesAcRq9bgrxw8I3QscToMHnfMb4QIVQ9.uJtu5lqVHSvJDBuPhRDHP2CwPDAnDQ1T83uEtNB7CidFHonT63QVhbI3NtBxUXaUI8Zy0OXmBhAa3paSHyOfItn0pyMFY7Ush7eyCaPs9YQ_agDnUOsM6Kmbq2yCD1SHNYgrbb4hpzy3CfilBVPzhocai1RQnk43gZd2xAOEhq5f6z4_gJleTQlc5U1_2qks8YJrYksoyvhUgcTPKxMYEznUozfRVZe3oc0NRm5JCLnsI5uBaMCZBtJTOftB5WtR.nZ73hkh9aq_AwTnj5HIhpslf_NfOn_0BN637JaUPTKuCBkUYvjZxhT70PTCyrCT1fveKUAdnkEor6MlEZQ1SXi8blyx8eqbGrGhS_cYx8_sxBlqv4OQqC6lLmdCBRZP71YbBywlLR2.DtaWO7ZHMqRszlN0ZnLO5hpPThsVmrWDVg.TOS4_mkffqt0_Ha74Jn9HzaplIJj3JPQBxpTX7hE90pQaphrT.m6qnQbyVsXqvTTiUlchu0dNyjbz1Wojvj1WPSyJrwwFe6m6iaQ8eUOQRlqMWhtApcorc74Vz6TKjwUKtKzBDt5iTJRZPCa4.M_6RyFl7j1KEeZdkmrVlosLbD70.tvo7Pyu5pMW8SpZ8aVI7LdMmvtHEOsZkmKObFeL0MXbeK_cMwXPCqNsUozSp2cPj.XoEe.kQPEoWT8YVm7nT7pLcw6jLtWBdqiaRVqWElASSULel18FN4mYp6.vyXfTcy6Ez.zhgApq0B86JMBwGVognRaCdGG7gud8_vfIfQsVfVwMHfuc6Em0.5aBGDXx_eH7cHqhD6QnTx_PkNAWWdHX9_L.S3lkD31QfK6Mq5Ac0ikGoqmxT5pZAmnqTTycAZM.eNbUukq35aodp59Bvj2O2qCBMsy.EDNucyCnS0Kgn4vIwhFpjX0uuaJWWO1R9QtnmqMDN1Lsd.3kQM3rvGqV36ug77dLe4oCPwoGKFF.RktvCvDknzjsa_I6pC3MGVBDNZr3iQWY_vAHPAAokqTSQ5GP2LOwPjB6j1CO0dq7Vs_q9PYmqlbKs9KT88OeBMtt4yU7rMsP.ii.WNgPNv61Z_o19VEd7EqzkWnMp9pSRW1v7HIo5zSgOWYhqUgzpvGDhTyko0H1xaRwwF_8uchTakKVwsup5jM8nAF.dP43gxxMSbPlGl97ojaZexU.B0pAQ3X849LB4PSF5nyhThc4CoThmVbzbtbAHF0S_gg1ORSrrIBu2g.eOZYAcXlcpY9k2snrYDpY3rOyiobr3YL7drFD9HSAdDl45SCc7tT2S0M4udr3ye4e4VdTyQzQ0q.jWCeTx8CbafgM6A5XkeLj3tsd1qEZD8IC1ohthodD5ElWcEes7_1BxRcTIcQe6s4.vmpP.B2ka3bniM2EOe_YB3kHcbdIWvvp08CIG_tb1lyquO4zSZj51.Mw7tEwTXySTCDPTqh0febMFjH8Inbt98.q0Sxz4Wfl9NIhOYNRS7Q9Q71CPTtytVsoMUT.h8PWiMWCffZUQ_FZzTuSixD_LM4ulLP18YKdZhV4l6Lu6ghSbX5UofL1IcE_XUsF4k_HmhWE5qlk.fN_DnyvtlqQ_bKIOA3QTYtH5wVioPKOsuvbqIwyuMmqNpMYly0CjRUYC8hvXhr5mPMcKgRdKHw_QA1aJkfRAwO1dKjHps3jolYEDLrvbjoqrjNIIhU.BO4vQIBnNT420EVmyuXakX2wq8wHQC.OpFmmsLwr8KWtaWaAQSYQiMtpXI_gULJ7aU0URymNc3P_FK.6nCngAziGSwZgtPwg_tU7Kpo7RkMU2fXj42BIohAtvL4dRzCrORlnlploX_JPZC.AU",mdrd: "LIuHOuCCj2_9AR6raN0ydHWmXpZ.6nY4bNZplIF3KNQ-1739772429-1.2.1.1-.Wk1eZ_wsVPrOUdPmYZc.Ci21YIv1OXlKeJvRciywp5ku9EQX4K08f7Y4uyBA2VD6fSyjgV9SU64ZQf.uRzQAGDB9aGHp9ZciCIcxutKvRPpOZNNxWDe1Ix7o8FAiRH0JIoGeNymkpm5sT.8.gh1MHx.oEByVnveaH5hPxfB0AcUpIrEPeIPWNLKpqgvpwvYYE2u.tRwOCmFm8nI9OSnfsqvN_MwiZclUaw0Qb8w71ol7EzDGeraqryHQTckZHxlJ4YyM2mgTEucm2ShFoQyDh1Wqz96eSwjLLH9lBU6mIECp6w6xjChNcC9pDZskuCv8d0ysbSNu0Tzkp13mqUUnfZMKjbzQ9iYKZgR8Ek_WjoFASraC31WhKfOuGuPaarUE78YQe8D0gvx3h7rfPf3LuVVOOZzXDlnlWOsPUySVFkFAvNEK8bf8HNILot9ApDKyboI6E8NaYDTyzUTfd7ZGD8HnGWZNgcJC.Pdd0GaRVl9xhsl7fnOTmlhRb7lKmoQFbdhq5wa7e.Aw0z3dPDAMGl7ymfxElLWVqHTO.3KYW250m5BbCgtVEcQU97GeYFUCLdlDVf2zr74Hun8GNXl.l6pEJluKus29KuiV.YOnNKWq4mBmQ_D7Rs0Xb.Gax6VU7aVPFDK7Z_z5qW04O9xTFrG3VcLrFR8TOES5fryIafTvaLCf2vjtod67EMkEQ9VqANQrUt0Z.QGtwOfvI1BLDNrxshC36HHNNnzVq2AmLt4AN1bRKT5LIfMHGxEm63fDyu1vhD3IYxpSJq9BPo05rD2aVd0yYexRTisjFLu5jNT8zQbhKbBwnMFjrcKA8DEZqBGOjQxwC2PrIcRptuiJ3ChPty2fq_sUHRlD99AFQU9EyZU0985jEbxipmCVeb7KvXo_RXcoCOKjxou0xMOQqU.p5_0Be0y.OBQBKkzxnYrgh.b9gjnt4HEY4VRdj2W04eB2rwQrdlfBx172LUQYUD1LdILwKBX9vNJsHtvhsEgiDCYskJYQ_743.8ehSRcbyiR4OSCpVIyKfEKbsnqHZO_ZF98LZ56FWrCAahivd9byiIcRvRxpikgTF3CO09o85s6nR_mHaB.JqRrSBeyki5.LFGzcGjFl_.eNCz9Lul6iqodUVV1PUCR1ymA8MHSfLADVvHPZrZr7F1wrWgvwN8mVCIh6.a2DSHWVFwL2OyBYder5.p73CuGkluvMncWNnNWacAC8QrkEItMZkPqgEWCL41ZAP2Ywq1CO3HRaw5F.QAXr6e1dsXBwmn47c1oR_h5p9NgNo9WAtu04RAhhLFM9lxw5weE8kt5BYo.2zACw7Pm6MsKvYv2NsOzH53mvx2OTbbwl1PvnFuWAOv_A8tQrv5aBipqdRKK0SHmGfP7DxjF.wED7F61b_4Hlkil62ZzwCa5CJKge930hpPeKtD6MxpLFLvuniSUFPNWJCj8K.u_4JK659cRg7DojrgMgD.44jZpY2pf7OYW7FD9LN0xMM1XljyjSTpnq3uA.x9ayLkzYiMjyc1vftz.5vm2FncF0ldNNBbx3oaDDf8vsVTBAhl._7q2fUkpxyDlUDSGQZnnUJR7JPBn2JXhMKNMowDdzEeFG6S3jGzOvFZ0ClfDkkvAUuJB4GBKKst4ZAyL3dWh5goEWKGSfW5lo_PlB5htYUCSZWs3ucwo33rgyJmia7qKkXcQG96V36E67jC_ty5ygrBEm1SD6YONL8ntKSbV0niYkr8hPCAZS7T.h07BGNM3rkp3aOhycoF1LVyvHNTMPqoNuq70d.o.1ye.OWXbKC_sR8jExQknBHNeQLLejXW2qlhKPhYs_daIEPxxiLIx2xSbC5VlKeqADjVsMhwjzrd4x1meA2yCdGCLe8ntBAD9mnqcifwluYz84KZqZzchhhvsGk5Ds_ISgOE8ffhWtQR_eOLEatGL6IRrqLvqJqpZhiZgqExVjSgbhpurLTRe.ImAr1K9_F1I_EVy"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=913398733ef3ce7d';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=ultrasonic%20imaging&__cf_chl_rt_tk=KMsd7c31Pi_j45S3YY7rEQ4nylA2nY.atzj2BDwSOzM-1739772429-1.0.1.1-xqEfaet8_swZVmwsrYs8g9BoV8kMx47Y3BFaOAywmmY" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>