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3021
Engineered Magnetization Dynamics of Magnonic Nanograting Filters
Published 2021“…Using micromagnetic models, we investigate the effect of nanowire damping, excitation frequency and geometry on the spin wave modes, spatial and temporal transmission profiles for a finite patterned nanograting under external direct current (DC) and radio frequency (RF) magnetic fields. …”
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3022
Efficient Conformal Parameterization of Multiply-Connected Surfaces Using Quasi-Conformal Theory
Published 2021“…Abstract Conformal mapping, a classical topic in complex analysis and differential geometry, has become a subject of great interest in the area of surface parameterization in recent decades with various applications in science and engineering. …”
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3023
How Good Are Modern Spatial Libraries?
Published 2021“…JTS Topology Suite (JTS), its C++ port GEOS, Google S2, ESRI Geometry API, and Java Spatial Index (JSI) are some of the spatial processing libraries that these systems build upon. …”
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3024
Image-Space Modal Bases for Plausible Manipulation of Objects in Video
Published 2021“…We describe how to extract this basis from video, and show that it can be used to create physically-plausible animations of objects without any knowledge of scene geometry or material properties.…”
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3025
Building Block-Based Assembly of Scalable Metallic Lattices
Published 2021“…We show this method results in large scale (tens of centimeters), ultralight (<10 kg/m3 effective density) lattices which are currently not possible with state of the art additive manufacturing techniques. The lattice geometry used here is a combination of two geometries with quadratic property scaling, resulting in a novel lattice with sub-quadratic scaling.…”
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3026
On the Homotopy Theory of Stratified Spaces
Published 2022“…This includes an overview of our joint work with Bariwck and Glasman on exit-path categories in algebraic geometry; this work uses as input the perspective on stratified spaces provided by our stratified homotopy hypothesis.…”
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Thesis -
3027
Constraints on the Initial State of Pb-Pb Collisions via Measurements of Z -Boson Yields and Azimuthal Anisotropy at √sNN=5.02 TeV
Published 2022“…Yields of Z bosons are compared to Glauber model predictions and are found to deviate from these expectations in peripheral collisions, indicating the presence of initial collision geometry and centrality selection effects. The precision of the measurement allows, for the first time, for a data-driven determination of the nucleon-nucleon integrated luminosity as a function of lead-lead centrality, thereby eliminating the need for its estimation based on a Glauber model.…”
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3028
Machine Learning for High-Energy Collider Physics
Published 2022“…In the second part of this thesis, I define a distance metric between collider events based on optimal transport that allows for a rigorous construction of "event space" and its corresponding geometry. Using public datasets provided by the CMS collaboration, I explore this metric on a dataset of real jets, demonstrating its viability as an experimental method as well as the value of public collider data in benchmarking new techniques.…”
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Thesis -
3029
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3030
Features and Applications of Random Unitaries
Published 2022“…We will first study the scrambling property of random circuits (i.e., sequential applications of random unitaries according to some interaction geometry). We will analyze the behaviors of two commonly used measures of scrambling, out-of-time-ordered correlation and entanglement, and show that the corresponding notions of scrambling can be fundamentally different. …”
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Thesis -
3031
An Integrated Design Pipeline for Tactile Sensing Robotic Manipulators
Published 2022“…Our framework allows the designer to fine-tune the manipulator’s shape through cage-based geometry deformation. Finally, the designer can select surfaces for adding tactile sensing. …”
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Thesis -
3032
Electric field measurements of DC-driven positive streamer coronas using the E-FISH method
Published 2022“…The discharge is triggered from a point-to-plate geometry and consists of transient coronas, which bridge the inter-electrode gap and pulsate at about 3 kHz, superimposed with a persisting glow corona. …”
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3033
Improvements in Powder Rheometry Through Novel 3D Printed Tools
Published 2022“…We introduce a family of 3D printed tools. The main geometry comprises an annular helix formed to smoothly penetrate a powder bed and measure while compressing powder due to the helix shape. …”
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Thesis -
3034
Trace formulation for photonic inverse design with incoherent sources
Published 2022“…We present several examples of incoherent-emission topology optimization, including tailoring the geometry of fluorescent particles, a periodically emitting surface, and a structure emitting into a waveguide mode, as well as discussing future applications to problems such as Raman sensing and cathodoluminescence.…”
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3035
A second-order non-local model for granular flows
Published 2023“…The model successfully predicts the velocity and stress fields in this geometry, including secondary vortical flows that previous first-order models could not predict and slow creeping zones that local models miss. …”
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3036
Three-dimensional image processing for synthetic holographic stereograms
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Thesis -
3037
Multi-fidelity Design with Optimization Guided Incremental Decisions
Published 2023“…The proposed strategy is demonstrated through a design example of an electric regional passenger aircraft, where both analysis fidelity and geometry representation are incrementally refined. …”
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3038
Modeling Synapse Formation and Growth as a Non-Biological Analog to the Brain
Published 2024“…Future directions involve refining assumptions, adapting system geometry for dendritic growth, and modeling an entire nanowire network. …”
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Thesis -
3039
A novel bearingless interior permanent magnet slice motor for pump*
Published 2024“…Since the cogging torque is a result of the motor geometry, finite element (FE) simulation is used to simulate various rotor geometries to find the desired rotor configuration. …”
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3040
A Framework for Solving Parabolic Partial Differential Equations on Discrete Domains
Published 2024“…In addition, we demonstrate the versatility of our method on a number of linear and nonlinear PDE that appear in diffusion and front propagation tasks in geometry processing.…”
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