L[subscript 2]-gain optimization for robust bipedal walking on unknown terrain by Dai, Hongkai, Tedrake, Russell Louis

“…In this paper we seek to quantify and explicitly optimize the robustness of a control system for a robot walking on terrain with uncertain geometry. Geometric perturbations to the terrain enter the equations of motion through a relocation of the hybrid event “guards” which trigger an impact event; these perturbations can have a large effect on the stability of the robot and do not fit into the traditional robust control analysis and design methodologies without additional machinery. …”
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Remote sensing of submerged objects and geomorphology in continental shelf waters with acoustic waveguide scattering by Ratilal, Purnima, 1971-

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Custom mechanisms for tunable material deposition by Laucks, Jared Smith

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A deviational Monte Carlo formulation of ab initio phonon transport and its application to the study of kinetic effects in graphene ribbons by Landon, Colin Donald

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Carbon dioxide dissolution in structural and stratigraphic traps by Hesse, M. A., Szulczewski, Michael L., Juanes, Ruben

“…While dissolution of the CO[subscript 2] stored in these traps reduces the long-term leakage risk, the dissolution process remains poorly understood in systems that reflect the appropriate subsurface geometry. Here, we study dissolution in a porous layer that exhibits a feature relevant for CO[subscript 2] storage in structural and stratigraphic traps: a finite CO[subscript 2] source along the top boundary that extends only part way into the layer. …”
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Nested potassium hydroxide etching and protective coatings for silicon-based microreactors by de Mas, Nuria, Schmidt, Martin Arnold, Jensen, Klavs F.

“…Nested potassium hydroxide etching (using silicon nitride and silicon oxide as masking materials) was developed to create a large number of channels (60 reaction channels connected to individual gas and liquid distributors) of significantly different depths (50–650 µm) with sloped walls (54.7° with respect to the (1 0 0) wafer surface) and precise control over their geometry. The wetted areas were coated with thermally grown silicon oxide and electron-beam evaporated nickel films to protect them from the corrosive fluorination environment. …”
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A LINK BETWEEN X-RAY EMISSION LINES AND RADIO JETS IN 4U 1630-47? by Fender, Rob, Lee, Julia C., Ponti, Gabriele, Tzioumis, Anastasios K., Edwards, Philip G., Broderick, Jess W., Neilsen, Joseph M. G., Coriat, Mickael

“…We explore several scenarios that could explain our differing results, including variations in the geometry of the jet or a mass-loading process or jet baryon content that evolves with the accretion state of the black hole. …”
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Conformal cooling and rapid thermal cycling in injection molding with 3D printed tools by Xu, Xiaorong

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Impact of unsteady secondary air flow interaction with main flow on loss generation in axial turbines by Clifton, David (David Madison)

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Theory of terahertz generation by optical rectification by Ravi, Koustuban

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Desalination of water by vapor transport through hydrophobic nanopores by Lee, Jongho, Ph. D. Massachusetts Institute of Technology

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The homogenization limit and waveguide gradient index devices demonstrated through direct visualization of THz fields by Sivarajah, Prasahnt, Teo, Stephanie M, Werley, Christopher A, Ofori-Okai, Benjamin Kwasi, Nelson, Keith Adam

“…We found that if the propagation wavelength in the dielectric waveguide was at least two times as large as the Bragg condition wavelength, the homogenization approximation held independent of the detailed geometry, propagation direction, or fill fraction. …”
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PRECISION POINTING OF IBEX-Lo OBSERVATIONS by Bzowski, M., Kucharek, Harald, Heirtzler, D., Schwadron, N. A., Clark, G., Fuselier, S. A., McComas, David J., Crew, Geoffrey B., Mobius, Eberhard, Hlond, M., O'Neill, M. E.

“…We conclude that no systematic correction for boresight geometry is needed in the analysis of IBEX-Lo observations to determine neutral interstellar gas flow properties. …”
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THE PHYSICS OF THE “HEARTBEAT” STATE OF GRS 1915+105 by Neilsen, Joseph M. G., Lee, Julia C., Remillard, Ronald A

“…We exploit strong variations in the X-ray continuum, iron emission lines, and the accretion disk wind to probe the accretion geometry over nearly six orders of magnitude in distance from the black hole. …”
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DISCOVERY OF AN ACCRETING MILLISECOND PULSAR IN THE ECLIPSING BINARY SYSTEM SWIFT J1749.4–2807 by Altamirano, D., Cavecchi, Y., Patruno, A., Watts, A., Linares, Manuel Alegret, Degenaar, N., Kalamkar, M., van der Klis, M., Rea, N., Casella, P., Armas Padilla, M., Kaur, R., Yang, Y. J., Soleri, P., Wijnands, R.

“…The fact that SWIFT J1749.4-2807 is an eclipsing system that shows uncommonly strong harmonic content suggests that it might be the best source to date to set constraints on neutron star properties including compactness and geometry.…”
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Extensional flow of hyaluronic acid solutions in an optimized microfluidic cross-slot device by Haward, Simon J., Oliveira, Monica S. N., Alves, Manuel A., Jaishankar, Aditya, McKinley, Gareth H

“…We utilize a recently developed microfluidic device, the Optimized Shape Cross-slot Extensional Rheometer (OSCER), to study the elongational flow behavior and rheological properties of hyaluronic acid (HA) solutions representative of the synovial fluid (SF) found in the knee joint. The OSCER geometry is a stagnation point device that imposes a planar extensional flow with a homogenous extension rate over a significant length of the inlet and outlet channel axes. …”
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Large-scale, realistic laboratory modeling of M[subscript 2] internal tide generation at the Luzon Strait by Mercier, Matthieu J., Gostiaux, Louis, Helfrich, Karl R., Sommeria, Joel, Viboud, Samuel, Didelle, Henri, Dauxois, Thierry, Peacock, Thomas, Ghaemsaidi, Sasan John

“…The results advocate that a broad and coherent weakly nonlinear, three-dimensional, M[subscript 2] internal tide that is shaped by the overall geometry of the double-ridge system is radiated into the South China Sea and subsequently steepens, as opposed to being generated by a particular feature or localized region within the ridge system.…”
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Robotics and power measurements of the RoboTuna by Tolkoff, Samuel William, 1973-

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Existence of competitive equilibria in combinatorial auctions by Lee, Ji Young, Ph. D. Massachusetts Institute of Technology

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Sustained High-Frequency Dynamic Instability of a Nonlinear System of Coupled Oscillators Forced by Single or Repeated Impulses: Theoretical and Experimental Results by Remick, Kevin, Vakakis, Alexander, McFarland, D. Michael, Quinn, D. Dane, Sapsis, Themistoklis

“…The system considered consists of a grounded weakly damped linear oscillator coupled to a lightweight weakly damped oscillating attachment with essential cubic stiffness nonlinearity arising purely from geometry and kinematics. It has been found that under specific impulse excitations the transient damped dynamics of this system tracks a high-frequency impulsive orbit manifold (IOM) in the frequency-energy plane. …”
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