Effective Locomotion at Multiple Stride Frequencies Using Proprioceptive Feedback on a Legged Microrobot

Posted by klaurent Harvard

Kavli Affiliate: Robert J. Wood | First 5 Authors: Neel Doshi, Kaushik Jayaram, Samantha Castellanos, Scott Kuindersma, Robert J Wood | Summary: Limitations in actuation, sensing, and computation have forced small legged robots to rely on carefully tuned, mechanically mediated leg trajectories for effective locomotion. Recent advances in manufacturing, however, have enabled the development of […]


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Surface curvature guides early construction activity in mound-building termites

Posted by klaurent Harvard

Kavli Affiliate: Radhika Nagpal | First 5 Authors: Daniel S. Calovi, Paul Bardunias, Nicole Carey, J. Scott Turner, Radhika Nagpal | Summary: Termite colonies construct towering, complex mounds, in a classic example of distributed agents coordinating their activity via interaction with a shared environment. The traditional explanation for how this coordination occurs focuses on the […]


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Jetting to dripping transition: critical aspect ratio in step emulsifiers

Posted by klaurent Harvard

Kavli Affiliate: David Weitz | First 5 Authors: Andrea Montessori, Marco Lauricella, Elad Stolovicki, David Weitz, Sauro Succi | Summary: Fully three-dimensional, time-dependent, direct simulations of the non-ideal Navier-Stokes equations for a two-component fluid, shed light into the mechanism which inhibits droplet breakup in step emulsifiers below a critical threshold of the the width-to-height ($w/h$) […]


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Uncovering the dynamic precursors to motor-driven contraction of active gels

Posted by klaurent Delft

Kavli Affiliate: Gijsje Koenderink | First 5 Authors: Jose Alvarado, Luca Cipelletti, Gijsje Koenderink, , | Summary: Cells and tissues have the remarkable ability to actively generate the forces required to change their shape. This active mechanical behavior is largely mediated by the actin cytoskeleton, a crosslinked network of actin filaments that is contracted by […]


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Untethered microbot powered by giant magnetoelastic strain

Posted by klaurent Harvard

Kavli Affiliate: Zhigang Suo | First 5 Authors: Yukun Xia, Jikun Wang, Ruisen Yang, Tongqing Lu, Tiejun Wang | Summary: Magnetic elastomers deform under a magnetic field, working as a soft actuator. Untethered microbot made of magnetic elastomers have great potentials in performing medical tasks inside human body as mini doctors. However, the lack of […]


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Transport signatures of surface states in a Weyl semimetal: evidence of field driven Fermi arc interferometry

Posted by klaurent Berkeley

Kavli Affiliate: Jeffrey Neaton | First 5 Authors: Nityan L. Nair, Marie-Eve Boulanger, Francis Laliberté, Sinead Griffin, Sanyum Channa | Summary: A signature property of Weyl semimetals is the existence of topologically protected surface states – arcs in momentum space that connect Weyl points in the bulk. However, the presence of bulks states makes detection […]


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Andreev reflection at the interface with an oxide in the quantum Hall regime

Posted by klaurent Caltech

Kavli Affiliate: Joseph Falson | First 5 Authors: Yusuke Kozuka, Atsushi Sakaguchi, Joseph Falson, Atsushi Tsukazaki, Masashi Kawasaki | Summary: Quantum Hall/superconductor junctions have been an attractive topic as the two macroscopically quantum states join at the interface. Despite longstanding efforts, however, experimental understanding of this system has not been settled yet. One of the […]


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Robust Model Predictive Control of Irrigation Systems with Active Uncertainty Learning and Data Analytics

Posted by klaurent Cornell

Kavli Affiliate: Abraham Duncan Stroock | First 5 Authors: Chao Shang, Wei-Han Chen, Abraham Duncan Stroock, Fengqi You, | Summary: We develop a novel data-driven robust model predictive control (DDRMPC) approach for automatic control of irrigation systems. The fundamental idea is to integrate both mechanistic models, which describe dynamics in soil moisture variations, and data-driven […]


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Cathodoluminescence-based nanoscopic thermometry in a lanthanide-doped phosphor

Posted by klaurent Berkeley

Kavli Affiliate: Naomi Ginsberg | First 5 Authors: Clarice D. Aiello, Andrea D. Pickel, Edward Barnard, Rebecca B. Wai, Christian Monachon | Summary: Crucial to analyze phenomena as varied as plasmonic hot spots and the spread of cancer in living tissue, nanoscale thermometry is challenging: probes are usually larger than the sample under study, and […]


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Harnessing Avidity: Quantifying Entropic and Energetic Effects of Linker Length and Rigidity Required for Multivalent Binding of Antibodies to HIV-1 Spikes

Posted by klaurent Caltech

Kavli Affiliate: Pamela J. Bjorkman | First 5 Authors: Tal Einav, Shahrzad Yazdi, Aaron Coey, Pamela J. Bjorkman, Rob Phillips | Summary: Due to the low density of envelope (Env) spikes on the surface of HIV-1, neutralizing IgG antibodies rarely bind bivalently using both antigen-binding arms (Fabs) to crosslink between spikes (inter-spike crosslinking), instead resorting […]


Continue.. Harnessing Avidity: Quantifying Entropic and Energetic Effects of Linker Length and Rigidity Required for Multivalent Binding of Antibodies to HIV-1 Spikes