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Articles 1 - 6 of 6
Full-Text Articles in Physics
Viscosity Dependence Of Faraday Wave Formation Thresholds, Lisa Michelle Slaughter
Viscosity Dependence Of Faraday Wave Formation Thresholds, Lisa Michelle Slaughter
Physics
This experiment uses an electromagnetic shaker to produce standing wave patterns on the surface of a vertically oscillating sample of silicon liquid. These surface waves, known as Faraday waves, form shapes such as squares, lines, and hexagons. They are known to be dependent upon the frequency and amplitude of the forcing as well as on the viscosity and depth of the liquid in the dish. At a depth of 4mm and for various silicon liquids having kinematic viscosities of 10, 20, and 38 cSt, we determined the acceleration at which patterns form for frequencies between 10 and 60 Hz. For …
Investigating Fault Structure Using Electrical Resistivity Tomography, Sara Michelle Monahan
Investigating Fault Structure Using Electrical Resistivity Tomography, Sara Michelle Monahan
Physics
The resolving power of two-dimensional Direct Current (DC) Electrical Resistivity Tomography (ERT) is investigated in the context of shallow faults. Subsurface electrical resistivity data was collected perpendicular to a secondary fault scarp of the Los Osos Fault Zone with a Syscal KID Switch 24 resistivity meter and processed with Prosys II and Res2DInv software to produce two-dimensional cross sections of resistivity values via a smoothness-constrained least-squares optimization method. Comparison of ERT inversion results to a trench wall map of the same fault scarp suggest the location and dip direction of faults is resolvable, while detailed fault structure, such as dip …
Characterization Of The Drilling Via The Vibration Augmenter Of Rotary-Drills And Sound Signal Processing Of Impacted Pipe As A Potential Water Height Assessment Tool, Nicholas Morris
STAR Program Research Presentations
The focus of the internship has been on two topics: a) Characterize the drilling performance of a novel percussive augmenter – this drill was developed by the JPL’s Advanced Technologies Group and its performance was characterized; and b) Examine the feasibility of striking a pipe as a means of assessing the water height inside the pipe. The purpose of this investigation is to examine the possibility of using a simple method of applying impacts to a pipe wall and determining the water height from the sonic characteristic differences including damping, resonance frequencies, etc. Due to multiple variables that are relevant …
Nbconvert Refactor, Jonathan Frederic
Nbconvert Refactor, Jonathan Frederic
Physics
IPython is an interactive Python computing environment. It provides an enhanced interactive Python shell. The IPython Notebook is a browser based interface distributed with IPython. It enables the creation of richly formatted notebooks that contain embedded IPython code. With nbconvert, notebooks can be exported to various formats including, but not limited to, LaTeX, reveal.js, RST, and HTML. This is important for users that want to be able to share their work outside of IPython. This senior project is the addition of a Sphinx LaTeX output format and the refactor of nbconvert.
An Inexpensive Scheffler Reflector For Developing Nations, Mike Kim
An Inexpensive Scheffler Reflector For Developing Nations, Mike Kim
Physics
Scheffler reflectors are an appropriate solar technology used to provide heat for cooking surfaces and has been adopted in many developing nations. The first Scheffler was built in North America in 2010 by Jason Rapp et al., taking a group of four students approximately $2000 and 3 months. Thus, our task was to minimize certain aspects of the Scheffler construction process, so that it would be more appropriate for developing countries and industrial applications alike. Additionally, this senior project aims to incorporate the thermal storage unit and tracking system, with the current Scheffler system, to render a workable cooking technology. …
Atmosphere Observation By The Method Of Led Sun Photometry, Gregory Garza
Atmosphere Observation By The Method Of Led Sun Photometry, Gregory Garza
Physics
No abstract provided.