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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Dear enthusiasts of the SLAAM seminars,</span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"> </span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">We invite you to join us for the next<span class="apple-converted-space"> </span><a href="https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fphysics.ucmerced.edu%2Fslaam&data=05%7C01%7Cd.a.beller%40jhu.edu%7C5afa44fcce434f0efed608db0463b5d6%7C9fa4f438b1e6473b803f86f8aedf0dec%7C0%7C0%7C638108599445499851%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=PBY52JD%2BmGUUGF48zMYVIP3w5wYFE3TwNtJxP6flmgY%3D&reserved=0" title="https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fphysics.ucmerced.edu%2Fslaam&data=05%7C01%7Cd.a.beller%40jhu.edu%7C5afa44fcce434f0efed608db0463b5d6%7C9fa4f438b1e6473b803f86f8aedf0dec%7C0%7C0%7C638108599445499851%7CUnknown%7CTWFpbGZsb3d8e"><span style="font-size:11.0pt;color:#0563C1">Soft
Living Active and Adaptive Matter (SLAAM)</span></a><span class="apple-converted-space"> </span>seminar, to be given by <b>Dr. Yongtian Luo<span class="apple-converted-space"> </span></b>(Johns Hopkins) on <b>Monday, February 13,<span class="apple-converted-space"> </span></b>at <b>9am
Pacific/11am Central/12 noon Eastern time</b>, with the title<span class="apple-converted-space"> “</span></span><span style="font-size:12.0pt;color:black;background:white">Modeling the Hydrodynamic and Mechanical Effects of Fluid-Storing Biological Flow Networks</span>.”<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><a href="https://ucmerced.zoom.us/j/92693607475?pwd=TnI5dDhRRnYvejNZK2xNN0s4M0R5UT09" title="https://ucmerced.zoom.us/j/92693607475?pwd=TnI5dDhRRnYvejNZK2xNN0s4M0R5UT09"><span style="font-size:11.0pt;color:#0563C1">https://ucmerced.zoom.us/j/92693607475?pwd=TnI5dDhRRnYvejNZK2xNN0s4M0R5UT09</span></a></span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Zoom Meeting ID: 926 9360 7475 | Passcode: 223642</span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"> </span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">As usual, there will be a 15 min informal Q&A at the end of the hour. Graduate students will have an opportunity to interact with the speaker in an informal setting during the "Meet the speaker"
timeslot just after the talk. Please join if the time works for you.<span class="apple-converted-space"> </span></span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"> </span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">Abstract:</span></b><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black;background:white">Biological flow networks, which are widespread in both animals and plants, play important roles in the physiological functions of these living systems through various effects on
their hydrodynamic and mechanical properties. In plant biology, water-delivery vascular networks consisting mainly of xylem vessels are essential not only for keeping tissues hydrated and sustaining necessary fluid status (water potential or fluid content),
but also for controlling certain hydraulically related motions involving large-scale shape changes such as petal expansion and deformations in flower blooming, with the help of water-storing cells in leaves or petals. Using a flow network model with local
hydraulic conductance and fluid-storage capacitance, we theoretically study the water status dynamics of a model grass leaf under water stress to illustrate the significance of capacitor cells in the leaf's resilience against drought conditions. In order to
study the shape morphing of a thin sheet controlled by its embedded flow network (as in a petal), we coupled the capacitive network model to a mechanical network (spring system describing the shape of the surface) to simulate its differential swelling and
buckling processes, exploring the effects of venation architecture and hierarchies on the deformation pathways by using the minimal coupling model. These shape patterns reveal the underlying fluid distribution and mechanical changes, and may offer clues to
the design and manufacture of thin materials whose shapes can be manipulated by adjusting internal hydraulics.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><br>
<b>About the speaker:</b></span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black;background:white">Yongtian Luo is a postdoctoral fellow at the Johns Hopkins University, working with Prof. Brian Camley in the field of theoretical and computational soft matter and biological
physics. Previously, he was a postdoctoral researcher at the University of Pennsylvania in the group of Prof. Eleni Katifori, studying the effects of flow networks in plant biology and thin elastic structures, particularly leaf hydraulics and petal shape transformations,
using theoretical models and computer simulations. Yongtian earned his PhD in chemistry from the University of Washington where he studied the phase separation and deformation of lipid-bilayer membranes. Currently, he is working on the modeling of cell migration
in extracellular matrix, especially the movement and interactions of fibroblasts on a nanofiber network, in the Camley group at JHU.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"> </span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"> </span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">See you there!<span class="apple-converted-space"> </span></span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"> </span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Best regards,</span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Dan Beller</span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">on behalf of the SLAAM organizing team</span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"> </span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:12.0pt;color:black">To join the SLAAM mailing list, please sign up <a href="https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Furldefense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-3A__docs.google.com_forms_d_e_1FAIpQLScTyzEuuE7TfrrapgP4tzN-5FoPSqbBhURUxa9-2Dzc8USnY1IPzA_viewform%26d%3DDwMFAw%26c%3DWO-RGvefibhHBZq3fL85hQ%26r%3D6T170XR90Za4-nl9r1e8-WfEJbvH5g5hJbA9UumqfWQ%26m%3DNK4EGo1VvrDiYSxdvOUJXgCkEAzTrQzNpQi-P59LZiKL_lMA3briJm9KQh9Y3suN%26s%3D3hc1lEhiJwBLtMEr12Z9K5XtZaVlEfOZKYXGtXCjRDg%26e%3D&data=05%7C01%7Cd.a.beller%40jhu.edu%7C5afa44fcce434f0efed608db0463b5d6%7C9fa4f438b1e6473b803f86f8aedf0dec%7C0%7C0%7C638108599445499851%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=M9Hfw2Bqz75TW2j%2BJpTmfSjW43MCX0SzoJHMoGOLVbs%3D&reserved=0" title="https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Furldefense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-3A__docs.google.com_forms_d_e_1FAIpQLScTyzEuuE7TfrrapgP4tzN-5FoPSqbBhURUxa9-2Dzc8USnY1IPzA_viewform%26d%3DDwMFAw%26c%3DWO-RGvefibhHBZq3fL85h"><span style="font-size:11.0pt;color:#0563C1">here</span></a>. If
you’re a postdoc interested in giving a SLAAM talk, we invite you to register your interest on that webform.</span></i><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"> </span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"> </span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Helvetica;color:black">Daniel Beller</span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Helvetica;color:black">Assistant Professor</span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Helvetica;color:black">Department of Physics and Astronomy</span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Helvetica;color:black">Johns Hopkins University</span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Helvetica;color:black"><a href="http://pages.jh.edu/dbeller3" title="http://pages.jh.edu/dbeller3"><span style="color:#0563C1">pages.jh.edu/dbeller3</span></a></span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Helvetica;color:black">(he/him/his)</span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"> </span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
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