BEGIN:VCARD VERSION:3.0 REV:2026-10-02T09:00:40Z N;CHARSET=utf-8:David Walters, M.Sc.;;;; FN;CHARSET=utf-8:David Walters, M.Sc. URL:https://www.exponent.com/people/david-walters ORG;CHARSET=utf-8:Exponent TITLE;CHARSET=utf-8:Principal EMAIL;INTERNET:dwalters@exponent.com TEL;WORK:+44-20-7864-9761 PHOTO;ENCODING=b;TYPE=WEBP:UklGRu4XAABXRUJQVlA4WAoAAAAQAAAArwAA2wAAQUxQSMgF AAABoIBs/+JG+vNnGIYhhBJCCWEJ6xvKurtvCWWllBJKye6elJOwdu7uLuVcV8q6u4RzzbmFEkp YSgghhBBCGIY/f37n0ny/Ob+LiAkQf/+W0jQt0zQND2RbIV9k+MTORDzR07N0/PBQwJRSehZptb RftPKy3QfT2f5MsZTPvNb33B0bFkaCTT7blB5DGmZTePzKZ57bmc47rlZKa62VUypXStmje/uee uT6xPKoT3oBKYWQzXMveKxv7/az2VKppugXa61c16kWsi8sbpL8GcNH2uFLnjqaSZ9M56pK02+o y/27O8KSOzl3y/T20ycH82VFv71TyJx+aK4tWTOm9t73RKHuKhqqqng6MUzyJa25BzOZmkNDup5 9KGoyZUTjl3xczNVcPbSolt092+TIGLnp6q73anVXaRrqqri9xeDHH3+ifeXOqqO0pqGvay+EDW 6sLRva2q4tuYoatHplSDLT2rEplvygpqlhB7ttyYp5SWxd4r5BTY2r35ptsdLSHe9ZfdKhRi4mQ wYnba2XJK79mBo7f33YYCQei2/ozTcY1a4cbTESX3n18f5Go3dituRCro7Hnjo70HDOyaUmF0Zr R3xnqtJwVH0pIrmY3dO9t6gbj0oXBCQL0h57842fagKoMsstBmSk48YXjmZcglg/O9aAZ/Zsae2 4a/sAgaxvDcNrXx694L77PtcoqNxlgpPJxPXXPnRYE0y1NSCxGclk/KHjBQL6+WQTXGz73pNpjc S5xC+hNW89/FRvlZDqN8Yb0Ba/8Mimd1woVEn6oEV23ri1qrGokxGJzLz51nSdwBY7TWRy5fHXH DTqiYBEFjv8tYtGp4Yb0LZnNBoqttrArLn7C3jU1qDEZYx+rUBw9eBcA5cMpip4qHqBCSxwXAGq PWfjEpjc94LAfH2Qsi0Sl91HkKYawA4iUrlWYNZriKi4xfJYzlMhYB9A0n3Dcdk5TG+EcfnzmLJ TgfVDUgOtuJo+h6QH5uKKlDAVluIaXYPk5hbjCpYxfTkeV6AGSZ0O4oo4kJyXbFzDCpDqG0xckS KkSqfE1aIg5RYCG+4iUp+OBSb6ENUPB4EFH0NUuNqPa3GZEJfva4YlPyDM+rUQqpALimi3BDVZw 1LTQa0k3E+BuhbYeRPTlcD0ZEwxYHQ1pqgCthuTvwbsPUzyc2DnTUjiKLC6D9PNwDISUxewowJz WOOKgzIysL40QYkHYF0gUMdQfWrC8pUx6dUC92lM2yWwbkhfNgng/n5AhbEC+iV43MUCu5VGo9Y J9JvA6FsF/HYs+iGJbzKU+gYp8A/XQAZnCg4DNSBXChZlP5AED+IDHCkfE/fhGC+Y7MZxMxfBOo wuLuRrMF6QTIhrYbwiuJyqURxlw8iiyBpciF4UToCNpShUiA0rB4IWsiFuRdHGR9QFsY4PmQKxi Q+RAJGy+PCXMNBdfIh7QFQDfITLGKiTD3EjiD5G/BkMeZsPsdyBQAsZEXdhSI9nxDwKgSpdfIhQ BgKphXyImQ4E+tLmQ9yBgZKMWO9gyJp8iPEVCNTJiOhUENIGI2IQAq3jZDeG/HBGbsRAKYOPpSD oLj6aHRCqmw2rAILqC7mwYVBxOhOTXRhUuUhyYDxFQPXOID55SR0JUX8U3twCgS30xoMGstB7BN h57SIfLOMFjYiI8pv8oJY7BPvzDgNR+AMCrg8Ox+M7SNird/nBhPdrcEQfL0Yy9uYBYtB5KgKi+ YK36sRk+cqmxmtu218hTgeSgYay4zvLxG7uxmCjyNn3nCeeS/dFG8CIbvlUEd/uSy1yaIU2pFxi 3k31+IeMvXJ/nTxh6YmJcggE27cOkndU6Q7rtwl0by2Tx9SZbvtX83furJEnzf065tzn8uRZfwU 5bMPnmjzsL7I6D9bJ2/48c+ZTRfK8P8ef/FiRB/4pmciRN/6RpvbkG5q8k3FJnjy0ELJXk6cyni BvLa7VHmulSx77PP3v///9/8/HVlA4IAASAABwVQCdASqwANwAPm0wlEckIqIhJ7PsKIANiWU+1 SCNE2WABkl3tqyH5f8Pn+oncAc6Np11BI/4b6IPkh0p8O/OT9OlplDed3+/8TZpkLPlDSpeZh6d 0w/+75RfsT2DelB6Gf7VHpwfBPFpmVtG5Ua24Ph1iyDjMchQ4OlyqgwPJS40h82g53bRBtUD3Ca qa7BkkDQqDux90rw43kXswdQ8Uoz5U+Wu/+5t9CAhRB0wSxBUZ5x//0GvmD5C12V0/hCRyZ2v61 AAKGkID0wi4y/fMHqZZlBLIPyEjAZ5tspOYa4X37CMVdOYHb80u4hcs21UEHTmb5R0ve46XAoNa JAKlHweSkOCMm4CAgQ3Bw+1BSsJFJ/aORn3DPXPCGXGbjYTbaJIjLzQuIXhxzx3pEQYZaOiUFEj cd84yQXrJJKW3ssoDpy/V+QWieeDTlKcjMJm1g/IhpukPXu/KloTr+lVgHEZfk6hfXHkIP92fww d3OIA/g6DomVCm6u7or78+3YNGqz49QRI4yg2yZFTDgWlc7nFqi1GFCh6N8bekzJvLAq870TT0j 6HGvzCzLEnfpp5AI2Tt1DNZyO88Spml1WubQaSK+xsA637LvGO61cE14o59VwHuvdVMepV1W5p2 +1NlcNxAB9BkKJa098v2XgFijYfsfKdIaP7szIruzBISQ7j0P4lsmMXA6CkHctUIrvVRCI9wAM7 xKFMqPp9PJDkNBjHNg2VAV7jabBUbb8z6Aln4iDK8+sjvpmQlMBCSpq2bu9FNttwLl1meF8Gzg7 /Q1qgkKfTd7vSvyy7quMBLGFJlninPtWXs/vmK6krIXsNCxP6rP/joSNR65Di+vowzOIxAUpz6u qdTbh+zuC88T/vvwn/S5itfSet6RNMl1YR3ibS7ygk0q68cko+gSuAuhKG8AD+1cmI7/F+7S0DK SVywYePU2Womz8I7xNkXRPvzPJawADnZXWWpvN8q68owJW42efQCTpd4YRpQm96EoMVfBnkrYUC F1HBg1Dqtmk7e69884R0k1kByPns785LIKXRIrxXLPxxShvJ1mF5+JjRZVGEtOhqa/Iftybsl2w xw/tKWL/AXTr0U+uMbwcXfHCt1N4h9zG6mXSZJffbuqQi0x8TAYTcV9O8Vlr2SnEM6ZWjljD5Sk olxqUX3WoqgPKa1/aSNg0+RxF8AHz/HHYqbqBXZEvhDOu8fRRuait4jQ+ZWJhzVpBBllllwYMe6 PG5VtTMmTjCttEXVlCfXNc4KnCs83/lPYusZ4cCGys5OkVBByr03KRHQvNjVqU9e5lMHa2ytqWM 7cAGuDo4xbsZk4pWH+nBouqsNTFDGOgxt2q2EG++0hVuXi3kSte9Mi0oFsoqXVjUWwEWAkef5/W 116QocukMQOJ8Ntz0TENectSDBqrcKIdPL4bVHguVuUQiiu692FpOq8RusFLjtoP0dplivXrsVu efxrJjF7zeuaZMewizV0AbgjBTdyyjJZyOZAIc0eW3GS/3h1rXWfZpYqkWIXk/HucN4bN1fNwY+ 7DNU5kYRBI9xdeO8kRy00LSfupWYGXp3MIIDnXnnByCgmCsphGFU8/45mZhJDtK2eID185NTsxq Y5nmD/KWfe3AGjQt3MfRjFLipg7T9eTyZkh/1JClbdR3mqfiyiwzuVVp4YhBBBxH++09KhAEMqX c5wyDGlquO2BJ2yV92bnxloyrmqpgcoPTl+h0zw/wFcIv4SuL7FX3a0DOdz6fPwX/IUSm4AghQt 0gqbgzD5xutWxDp8YduCy45CVHIgnGEQkUgfw7aKssJeR4y+UJfT6B1GKwO4/OBfyHx6SnIwxzG UahyvBx79IeGOQsH6yxhY4BPz5lVCLvpPFcnUIsTzbfk4DMJj+wWfF5PemBRconwDxtygHC/7sc O4Jm/H5ZcHDOgINSvSgjocHBrSmiNJvReaZmaiv2iORnW1yk1FOQ5KD7KOKCh9gDxH1XTDlcP64 Opv2lmHlgImSJiUOnOQOoqah6pxpP6c3eOtbpeUNXZT1wQR58gmCcxYLQYl5nclIOyLty726e4N 79oIissGh8Rx3vLhCwtauz2SfCpod8eqSUyvoclxLpMu+RgdippWhoTiFVQgrqsAwqxzgWd07Ck lgy5XFyN82SXgAkC7wTyjr8YayquKYy+K0Bj6AZ+AuSbPriA1IaarIJ2s08vJzJ7uLBK5DOOko6 VXtmkx7/3I90pr46Cb75BsZz4/BodVEOfpEFf0fuZv+/ksVs7vrjal1PKKsOK645jI2oLhp/Ufi 1GXqZgBKk5zi6mRZwGln3uujM2N2X+iiMW7+InQw3VouXQBtFYetUnCoSHGbxzqGTmbH39AYqTy 8pStxbeENoFre0PvMcLlPMEIvxDs3cmOp6bqvR9WxOEOlMHBoneHNQbQiNqPxrtD2swCIgA+VWo m4scs0rAk1vBIbrzNuZ+P7fmiC4mdXLZ+stj9p6ONV6gDpJeeg9M28oo35PXnHmFJfkDlA7Jmun /qYtHDDES196L0CKeJkcotFrsTk0k5eE1DXEyMjwOVt6k3XDtrtVOEpHOerwS+E/LrGFWUnMSLD 0mKK0ArcLfTp59Iix8500RZ5h/PTWkcptgy3tePKYcXe93gg6+XNdR3LRo8vTDRVmO6sPcHPFPz wIKfAy+HYbV6atUNrYZb9vNySdLhhKbVYebINWzGnO0pJ/hsjgI4kuz64yMk74Qok3nJP5AoRY1 sL7Ykk/HoFSNSq/wWtT6mfD9YyXV24DI+73JRTu2q1+RxeXT9flb//OdfqALDNj38yi+n1dwZ1a KRs3izQWGOQoi1zwSXt38tukpOjlFag2DHHZyBzspqJigWREVr872lRWqRuRrgkEyP8kiwtMpQR NeK9AIVjRyTJgal1cfykTDjw8SvCkjGdY5VpgSDJHOf1Bxjd50F+jba4UgZaZo2+lUoK0zZ0GUT s6HpnBmVKOHc+F8pYNuAod72oTaNZh/tYYqwcRLnkFDjWMLZEh87jl7Uy7tZUrLWX0L89vQJrYI 6wwvFTFgdjfWwuYI1qTrJg3QCae3DFgCgzk46pCgZK5RRjSJb1teM/GQWfEGtgyCexZ4flAatZR vAYjT5dePQv/vbY84HCrPbMfiiAbKoECr2sttNuzUDlMJPvfVYA8qKnS33xBixtupHA7jyZNlhj bwFm1H6E0oXSoxoA8MnPSM69xnkT07BTPM2anpZQbH/OruRDjNegbiwi7bTV6cqoMSn8kFN4CMx r3LRonN9t9tHBfssbtuHfBctso57bbHHvK0Mk01vcb49vyuJ1suVtGFlyqs2LmwyuXUxJUj2/GQ 4NrQ4ZlEECl+6a+NJtZayAx8P2aFaVBIdmUYNlLbyGfX5ZGo4rnwYNoTs5Cs446rWyIB0dcBV3I uOmtcMizf5AJi9sQ2WwJgLfu4Ez9p6yQdzBAsQhjc2nXlIZSsbw3hUoOuWWpEJYbaVUhdceBu5g BB1hGhmqxaBx/4kC2QGPG0C7XdkQq0lGIc1hlWhYzR4odx2a1kABj5WjpIG8k308nPHvhi7OYIU ddVPntxFexvrxHVicRdzJlEvBR0b7JNejz+0eIx70LG5cyl84XYDxgR2UHmleZWWRFHtRy629W1 EcdfzpiewFQ+1tCVOZzWnpV/QWZBhbkF3QBGC9CiDS4K5wUq1MO7Qw1uaCO/d5NWtMJF1kCogJF b7SDzU8q8AseelhWWf2LFVwrDSOix9st8Qs61eUEerby+u72HExN6U2j8/9CBnEJ2EwncXo/DNI vgh0wGR40KVHT8C3kIwKntQnw7uKfp2VR7bH/2/dqKMQ+KsTAi7zpGOIm3qRWZ5BeGyS2sSRoip IFK2LTTHyXXDXez/C7RDqbfdGXu+dqHlBNvDBBSELMWhRQmppjKNmEAoLbroygxn3qOitpbqrvv B8SnPtukRJM8hapXS7eeBCLKYR40fNGTdW8aQYLB8WhbSk1xFD/nXohAXW7J2rPxxSBhyfchsJu t7W8s81/u8QjU7GZvB+f8R/nBaA1cM0db7fVnfclh2rHGb+MtVFxYwYW65mWQwLFVbeXqySTpQW 2wGV62CXoohxsqcp95/PcVXYe0n8d02te5EgG9BsHnymV3P2Ufe9F97tBdOuAGDGCFTeHqc5UEL Iep9tQPSzfmkKvi68JAry1cuAEAnQVdR8kCERRsTtTkVzkvrev2UAX/0Y7umx7KjbeXeKg6w5Na Ok3u5pedOopVVh5aCWB07qOgM10rTGzuXLrEKCZJfBMK7gmImFsTVa4HogONUGmz5fTL0WIUx9a 8Rvd280nqIxP+DFkBXWDeye4jerkHa8pedmaj10LUoKbzy6P+L5RvH/c71hR7R+SZNYGNkYwXUA P0Ow57YkXEX3WcIErMLf5IqPUsFmcc8Tqg9GR6cI6oHdM/ULc/SfvqD6Iu2QgpeyyxQo/R5+J59 zZLjECx4i3w2SbfQQAUxAELZdlvZxZLfXxL5psg8F9UQ8GUE5Yipua5MLNrCMYEXJp41fnAc4Fw VQ1E3c2Hc2z40kpXsyZxRrPY91frFylEkYs9eLVUTXPP6v0vgAc43WD8Hvz2WCn2IZpqJmRyPM8 Uf/eOoMxNdzR/+avv3PgWakq9DEUd1F9I8VTb7T0umLWqzhtxU7Pl6reQZVBoW8sM0iuJpVCo0Y 3RGy2+hPjXSfRUSUQz4A0AqmDWau+heopnJBZHSUaFXUCeLlrsdDkGQectJ3cfO7m1EzRr/znew i85zV7wlBqVuDwBCu2FOXwzSgCijS7DY1RnsJBBcGy7PoAER8IfkK7TY6MXnDtK+CBfm87BrOjz tXc/H/PgOfMr+xvCIy7hV60sE6BHd+u5Mptc26i8ZzZDohxq4+Qt+QPh3+F4BMCwEnSCuypyGPC lsuFVT8bzwtg27siSGoGfTT9tAAxQygeQye+3KL0zfmpZG1462ZUFjo4I1b659YgwUDmdej6YtX xewMYBAL0CcUAb/KqMFLIJ+ZUBBmLCRKhIVkIe0n3Liwx17Lz/VD0z53Vdt3qcBZrA3KNqJclQ3 xaFg3rVTRpxaQ7YhIt8t1+Tkevt5uU/sJ9sMCh60D+eEfJPrVJ1KiGwog6KHQO9jtMDVNmVt0Ye JDdUl0cEH/xvjuEyzyHS6LF+wq2pzVLPzXjBHGGfLeh7Jf2ok8UlLm62o91hE2Rr09QLklFhcq5 QChu1gDVFAsSTBeDQRlllCIELTPQTZzZOJMX/MMeGsJcV+PPvqJaFaoKeBKLDPCVvxdjjMlLqLE r63RztrA9O3S+0ALpAZZRvalk5OyzU5LNU3e50FTzs1xjrqQIn1gu6i/N8lldXoJTNQpPVGpcmU GmcSc99VAXKtz7bNy5f8lxiaIZXm0ZWz3Jnv3/CxayRtYjoD44vIjJi8Z0G2/UPq1i7yQxFl2TC wPBPGYYNcVPOe7gTukVVm3+gUseUJKQuDkG0Pgs43IJ9pMAPwIIN51KWEsObagFpRPr/tCUP5tH iuyDy8XTj1h+5QSo91+BsSNNRNwDP+laXbLlUtQGbNrQrnDZfghyr77oq7U3GnwKLl/x+Z9CN9o 2JOInF26NKJfPqAfLCc8bWdF/4Q4M08GYdsYdPPEo1nNOLlL/DbBpj/jnkOJFY/vTgMUX+WBDt7 MOLCKO8TwkkErzJpA2qxqpqpTvWcpm+qqLetOVjJzjl6A/2Qn9Rmkw/3r4/vyjzjMIdZ8ppYWFV u+uxsfUyd9AaUdH2rWL4zD/mKGA/ijK7JzJDjZPQzymRmabG0BMr9viJAEcopH07eCHxB3A2lLB lYQyzVVznUcA4NPSU5QnvQb6iwJAF6QasS2jzIY7JMqxDjpq1c+WUIKuZMGgOKY9o7V8DUrt5UH AoR5U1uVJdSsxZWRb9tHOyvqmm5b5cm7lzaHAzbSO5jx740WGmKHHYoeqKh05xsz6oc5WYkI2po 5+aeEqEeHAWz5beBB1wMT7gXioOztdmz0a5+KkhNrqrEfOFHT/my0/mlt4n9mO/Q1FzrdNxDtn2 nkwPTTInPzY45e3R5BsESf38OtBR1ZZMO4m+vj/NasQ81/I128oPj26/dAZsxrGbPgP5k68Ue58 F/FaHBhTJoqbQillGlQCWAbdC/LqAAA= END:VCARD