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8721
Electroseismic Waves From Point Sources In Layered Media
Published 2012“…The TM mode amplitudes decay rapidly with traveled distance and suggest the importance of a Vertical Electroseismic Profiling geometry to enhance recording of the converted electromagnetic signal by positioning the antennas closer to the target (contrast) of interest.…”
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Technical Report -
8722
Quantifying plasticity-independent creep compliance and relaxation of viscoelastoplastic materials under contact loading
Published 2013“…The derived relations enable extraction of viscoelastic material characteristics, even if sharp probes confer concurrent plasticity, applicable for a general axisymmetric contact probe geometry and a general time-independent plasticity.…”
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Article -
8723
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8724
A fast method for power spectrum and foreground analysis for 21 cm cosmology
Published 2013“…This technique makes feasible the megavoxel scale analysis necessary for current and upcoming radio interferometers by making only moderately restrictive assumptions about foreground models and survey geometry. We exploit iterative and Monte Carlo techniques and the symmetries of the foreground covariance matrices to quickly estimate the 21 cm brightness temperature power spectrum, P(k[subscript ||],k[subscript ⊥]), the Fisher information matrix, the error bars, the window functions, and the bias. …”
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Article -
8725
Modeling and implementation of solder-activated joints for single-actuator, centimeter-scale robotic mechanisms
Published 2013“…First order models are used to demonstrate selection of suitable PCMs and how to set initial joint geometry prior to fine tuning via detailed models/experiments. …”
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Article -
8726
Failure Mode and Sensitivity Analysis of Gas Lift Valves
Published 2013“…In this paper a quasi-steady-state fluid-mechanical model is constructed to study failure modes and sensitivities of a gas-lifted well system including the reservoir, two-phase flow within the tubing, and gas lift valve geometry. A set of three differential algebraic equations of the system is solved to determine the system state. …”
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Article -
8727
AlGaN/GaN HEMT With 300-GHz fmax
Published 2013“…To achieve this high f[subscript max], we combined a low-damage gate-recess technology, scaled device geometry, and recessed source/drain ohmic contacts to simultaneously enable minimum short-channel effects (i.e., high output resistance R[subscript ds]) and very low parasitic resistances. …”
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Article -
8728
Dynamic positioning of beacon vehicles for cooperative underwater navigation
Published 2013“…The effectiveness of this approach strongly depends on the geometry between the beacon vehicles and the survey vehicles. …”
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Article -
8729
Defect engineering of cuprous oxide thin-films for photovoltaic applications
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Thesis -
8730
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8731
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8732
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8733
Constructing a Gapless Spin-Liquid State for the Spin-1/2 J[subscript 1]-J[subscript 2] Heisenberg Model on a Square Lattice
Published 2013“…Taking a cylindrical geometry, we are able to construct four topological sectors with an even or odd number of fluxes penetrating the cylinder and an even or odd number of spinons on the boundary. …”
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Article -
8734
Decomposing global light transport using time of flight imaging
Published 2013“…The time profile at each pixel encodes complex interactions between the incident light and the scene geometry with spatially-varying material properties. …”
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Article -
8735
Testing multifield inflation: A geometric approach
Published 2013“…In parallel, we show how the mode interactions depend on the geometry of the inflationary Lagrangian and on the kinematics of the associated field trajectory. …”
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Article -
8736
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8737
Aligned Sub-10-nm Block Copolymer Patterns Templated by Post Arrays
Published 2013“…The in-plane orientation of the block copolymer cylinders was controlled by varying the spacing and geometry of the posts, and the results were modeled using 3D self-consistent field theory. …”
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Article -
8738
Cavity dynamics in water entry at low Froude numbers
Published 2013“…The numerically obtained dependencies of the cavity height and closure time on Froude number and body geometry are in excellent agreement with available experiments.…”
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Article -
8739
Cost Bounds for Pickup and Delivery Problems with Application to Large-Scale Transportation Systems
Published 2013“…By leveraging such bounds, we characterize a necessary and sufficient condition for the stability of DRT systems; the condition depends only on the workspace geometry, the stochastic distributions of pickup and delivery points, customers' arrival rate, and the number of vehicles. …”
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Article -
8740
Structural specificity in coiled coils : a and d position polar residues
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Thesis