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<font size="-1"><i>This work is supported by the U.S. National Science Foundation under grant 1508238</i></font>
<font size="-1"><i>This work is supported by the U.S. National Science Foundation under grant 1508238</i></font>
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<div style="width:400px;height:400px;border:3px solid green;">[[File:front_img1.jpg]]</div>
<div style="width:400px;height:400px;border:3px solid green;">[[File:front_img1.jpg]]</div>