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Articles 1291 - 1320 of 9533
Full-Text Articles in Entire DC Network
Jet-Driven Galaxy-Scale Gas Outflows In The Hyperluminous Quasar 3c 273, Bernd Husemann, Vardha Nicola Bennert, Knud Jahnke, Timothy A. Davis, Jong-Hak Woo, Julia Scharwächter, Andreas Schulze, Massimo Gaspari, Martin A. Zwaan
Jet-Driven Galaxy-Scale Gas Outflows In The Hyperluminous Quasar 3c 273, Bernd Husemann, Vardha Nicola Bennert, Knud Jahnke, Timothy A. Davis, Jong-Hak Woo, Julia Scharwächter, Andreas Schulze, Massimo Gaspari, Martin A. Zwaan
Physics
We present an unprecedented view of the morphology and kinematics of the extended narrow-line region (ENLR) and molecular gas around the prototypical hyperluminous quasar 3C 273 (L bol ~ 1047 erg s−1 at z = 0.158) based on VLT-MUSE optical 3D spectroscopy and ALMA observations. We find the following: (1) the ENLR size of 12.1 ± 0.2 kpc implies a smooth continuation of the size–luminosity relation out to large radii or a much larger break radius as previously proposed. (2) The kinematically disturbed ionized gas with line splits reaching 1000 km s−1 out to 6.1 ± …
Beaver (Castor Canadensis) Of The Salinas River: A Human Dimensions-Inclusive Overview For Assessing Landscape-Scale Beaver-Assisted Restoration Opportunities, Stuart Christian Suplick
Beaver (Castor Canadensis) Of The Salinas River: A Human Dimensions-Inclusive Overview For Assessing Landscape-Scale Beaver-Assisted Restoration Opportunities, Stuart Christian Suplick
Natural Resources Management and Environmental Sciences
Across the western United States, researchers are increasingly working with beaver (Castor canadensis) for process-based stream and watershed restoration. One recently-developed geographic information system-based tool, the Beaver Restoration Assessment Tool (BRAT), analyzes opportunities for beaver-assisted restoration (BAR) at a landscape-scale. However, this tool benefits significantly from human dimensions-inclusive, basin-centralized beaver knowledge for proper interpretation. Unfortunately, this information is scattered or absent in most semi-arid and arid southern California basins. This study thus sought to gather and produce this information through an explorative, benefits-maximizing approach to landscape-scale BAR opportunities assessment in one of these basins, the Salinas River. 49.2 …
The Five Tribes Of Machine-Learning: A Brief Overview, Jens G. Pohl
The Five Tribes Of Machine-Learning: A Brief Overview, Jens G. Pohl
Architecture
This paper reviews recent advances in automated computer-based learning capabilities. It briefly describes and examines the strengths and weaknesses of the five principal algorithmic approaches to machine-learning, namely: connectionism; evolutionism; Bayesianism; analogism; and, symbolism. While each of these approaches can demonstrate some degree of learning, a learning capability that is comparable with human learning is still in its infancy and will likely require the combination of multiple algorithmic approaches. However, the current state reached in machine-learning suggests that Artificial General Intelligence and even Artificial Superintelligence may indeed be eventually feasible.
Advanced Structural Integration Collaboratory Model For Architecture Students, Thomas Fowler, Iv
Advanced Structural Integration Collaboratory Model For Architecture Students, Thomas Fowler, Iv
Architecture
The architecture program at Cal Poly, San Luis Obispo, California, has a strong technology component (as part of the Polytechnic Mission of the University) over the years since its inception in the 1960’s, that led to the establishment of the College of Architecture andEnvironmental Design. The paper presents an advanced structural integration collaboratory model that works with recent changes in the curriculum. The history of the program is important, since the curriculum has always had a very intensive architectural engineering (structural systems focus) sequence of courses. While architecture students were definitely acquiring a strong knowledge of a wide range of …
Brightest Cluster Galaxy Evolution Exploration: Comparing The Separation Of Cluster X-Ray Light And Visible Wavelength Galaxy Light With Spectral Data, Matthew Aaron Salinas
Brightest Cluster Galaxy Evolution Exploration: Comparing The Separation Of Cluster X-Ray Light And Visible Wavelength Galaxy Light With Spectral Data, Matthew Aaron Salinas
Physics
Brightest Cluster Galaxies (BCGs), the brightest galaxy in a cluster of hundreds to thousands of galaxies, are some of the biggest, brightest, and most massive galaxies in the universe. Characterizing a BCG can help discover more about galaxy evolution - the aging, changing, and possible merging (collisions) of galaxies. This project involves determining the separation of the peak of x-ray emission of the galaxy cluster, and the peak of visible emission of the BCG to characterize the system as being disturbed or undisturbed that can then lead to discoveries about its formation and evolution. We have found that 17.4% of …
A First Look At Sublimation Rates In Toss Island Region, Antarctica, Rebecca Baiman, Scott Landolt
A First Look At Sublimation Rates In Toss Island Region, Antarctica, Rebecca Baiman, Scott Landolt
STAR Program Research Presentations
70% of Earth’s fresh water is held in Antarctica ice sheet. If the sheet melts, it has the potential to raise global sea levels by 190 feet (Klekociuk and Wiennecke, 2016). As the climate changes, it is imperative that to understand precipitation systems of Antarctica in order to measure and predict weather around the world. One aspect of precipitation events that we do not understand fully in Antarctica is sublimation. Data was collected from four Ott Pluvio Precipitation Gauges with Belfort Double Alter Shields placed in and around the Ross Ice Shelf from November of 2017 to present. An R …
Electronic Cvt - Controls, Alec William Hardy, Jessalyn Leora Ann Bernick, Nicholas Esteban Capdevila, Tristan Charles Perry
Electronic Cvt - Controls, Alec William Hardy, Jessalyn Leora Ann Bernick, Nicholas Esteban Capdevila, Tristan Charles Perry
Mechanical Engineering
The following document outlines the design process, manufacturing, and testing of the control system for an electronically controlled continuously variable transmission (ECVT). This control system was integrated into the custom designed and manufactured mechanical transmission system created in parallel by another senior project group. The transmission was designed for use in the Cal Poly Baja SAE vehicle. Through researching customer needs, competition requirements, previous and alternate CVT designs, and vehicle characteristics, we were able to determine the requirements and specifications for our unique system. Input, output, speed, and durability requirements guided our hardware selection. The primary components which comprised our …
Data-Driven Database Education: A Quantitative Study Of Sql Learning In An Introductory Database Course, Andrew C. Von Dollen
Data-Driven Database Education: A Quantitative Study Of Sql Learning In An Introductory Database Course, Andrew C. Von Dollen
Master's Theses
The Structured Query Language (SQL) is widely used and challenging to master. Within the context of lab exercises in an introductory database course, this thesis analyzes the student learning process and seeks to answer the question: ``Which SQL concepts, or concept combinations, trouble students the most?'' We provide comprehensive taxonomies of SQL concepts and errors, identify common areas of student misunderstanding, and investigate the student problem-solving process. We present an interactive web application used by students to complete SQL lab exercises. In addition, we analyze data collected by this application and we offer suggestions for improvement to database lab activities.
The Effects Of Edaphic And Climatic Factors On Secondary Lichen Chemistry: A Case Study Using Saxicolous Lichens, Alexander Paukov, Anzhelika Teptina, Maria Morozova, Ekaterina Kruglova, Sergio E. Favero-Longo, Cora Bishop, Nishanti Rajakaruna
The Effects Of Edaphic And Climatic Factors On Secondary Lichen Chemistry: A Case Study Using Saxicolous Lichens, Alexander Paukov, Anzhelika Teptina, Maria Morozova, Ekaterina Kruglova, Sergio E. Favero-Longo, Cora Bishop, Nishanti Rajakaruna
Biological Sciences
Diversity of secondary lichen metabolites and their relationship to substrate and environmental parameters were studied in saxicolous lichens in the Middle and South Urals of Russia. Atranorin, usnic acid, gyrophoric acid, zeorin, norstictic acid, antraquinones and stictic acid were found in 73, 42, 41, 37, 36, 35 and 32 species, respectively, of 543 taxa collected. One hundred and ninety six species (i.e., 36% of total species documented) contained no secondary metabolites. Spectra of secondary metabolites of crustose lichens varied on different rock types, while in fruticose and foliose groups only those species without lichen acids were dependent on the substrate …
Academic Senate - Agenda, 6/04/2019, Academic Senate
Academic Senate - Agenda, 6/04/2019, Academic Senate
Academic Senate Agendas
No abstract provided.
Accessible And Responsive Website Design For Cal Poly Dbs Marine Education Program, Charles W. Alexander
Accessible And Responsive Website Design For Cal Poly Dbs Marine Education Program, Charles W. Alexander
Computer Engineering
In this project, I demonstrate how accessible and responsive designs are followed in order to implement a modern, multi-page website which both adapts to the size of the screen as well as has the logical, semantic structure needed for accessible technologies to accurately use the site. This website is designed for a marine education program, Dive Beneath the Surface, which hosts live streams of scientific divers as they interact in real time with students many miles away. Although this site will not be the streaming platform, it needs to host a repository of videos and lessons for those students and …
Implementation Of Multivariate Artificial Neural Networks Coupled With Genetic Algorithms For The Multi-Objective Property Prediction And Optimization Of Emulsion Polymers, David Chisholm
Master's Theses
Machine learning has been gaining popularity over the past few decades as computers have become more advanced. On a fundamental level, machine learning consists of the use of computerized statistical methods to analyze data and discover trends that may not have been obvious or otherwise observable previously. These trends can then be used to make predictions on new data and explore entirely new design spaces. Methods vary from simple linear regression to highly complex neural networks, but the end goal is similar. The application of these methods to material property prediction and new material discovery has been of high interest …
Investigation Of Pervasive Clay Layers And Their Effect On Groundwater Flow Using Electrical Resistivity Tomography In The San Antonio Groundwater Basin, James M. Carlson
Investigation Of Pervasive Clay Layers And Their Effect On Groundwater Flow Using Electrical Resistivity Tomography In The San Antonio Groundwater Basin, James M. Carlson
Natural Resources Management and Environmental Sciences
The United States Geological Survey is developing an integrated hydrologic model of the San Antonio Creek Groundwater Basin to better understand and simulate the integrated surface water and groundwater system. An abrupt 60 meter offset in groundwater depth over a distance of less than one kilometer is observed in well readings within the Cañada De Las Flores region of the groundwater basin. Abrupt changes in groundwater levels are often explained by the presence of a fault in the subsurface vertically offsetting sedimentary units. However, observations of the structural geology of this region indicates that faulting is unlikely and suggests an …
An Investigation Of The Anomalous Thrust Capabilities Of The Electromagnetic Drive, Hannah J. Simons
An Investigation Of The Anomalous Thrust Capabilities Of The Electromagnetic Drive, Hannah J. Simons
Physics
The Electromagnetic Drive (EMDrive) is a propellant-less engine concept hypothesized by aero- space engineer Roger Shawyer. Shawyer’s proposed thruster technology is grounded on the theory of electromagnetic resonant behavior exhibited by a radiofrequency cavity, though the source of any generated thrust is undetermined by current physical laws. NASA Eagleworks Laboratories at John- son Space Center conducted a vacuum test campaign to investigate previously reported anomalous thrust capabilities of such a closed radiofrequency cavity, using a low-thrust torsion pendulum. The team published positive, although small-scaled thrust results in 2017. Following NASA Eagleworks breakthrough result and operating under the assumption that the …
Fire Protection System Analysis Of Warren J. Baker Center Of Science And Mathematics, Jacob Dentici
Fire Protection System Analysis Of Warren J. Baker Center Of Science And Mathematics, Jacob Dentici
Fire Protection Engineering: Culminating Experience Project Reports
This report analyzes the different fire protection systems and features of the Warren J. Baker Center for Science and Mathematics at the California Polytechnic State University, San Luis Obispo campus. This building is used for lectures, laboratories, study spaces, faculty spaces, and storage spaces for the students and faculty at the Cal Poly campus. Typically, there are science and math courses taught within this building. The building is a 6-story structure, that is not classified as a high-rise due to the location of fire department access and has a five-story atrium located on levels 2 through 6. There are two …
Effects Of Heat Treatment On The Dimensional Stability And Mechanical Properties Of Guadua Bamboo, Kade Schmitz, Skye Dascher, Shalto Dascher
Effects Of Heat Treatment On The Dimensional Stability And Mechanical Properties Of Guadua Bamboo, Kade Schmitz, Skye Dascher, Shalto Dascher
Materials Engineering
Contributing to about 4% of particulate emissions, the construction industry is one of the largest polluters of the environment. In an effort to reduce emissions, BamCore has produced a dual panel wall system made of Guadua bamboo with a Douglas fir veneer. Bamboo is a highly renewable material with a fast growth rate and carbon sequestration abilities. This project investigates how heat treating Guadua bamboo influences its dimensional changes and mechanical properties for building applications. It was found that a dimensional increase in every direction occurred for all samples when exposed to higher relative humidity (50% to 90%), and that …
Graduate Internship Report Aged 539 - Volunteer Mah & Answer Key, Rachel E. Drisdelle
Graduate Internship Report Aged 539 - Volunteer Mah & Answer Key, Rachel E. Drisdelle
Agricultural Education: Graduate Internship Reports
This internship and project report includes validation documents required in meeting the quality criteria for secondary-level programs of instruction in agriculture. This is a volunteer workbook intended for high school students looking to observe at a veterinary hospital. It is written for volunteers at Mission Animal Hospital in San Luis Obispo, CA, but can be adapted for other veterinary hospitals if needed.
Graduate Internship Report - Hanford Agriculture Program, Dominica L. Clisso
Graduate Internship Report - Hanford Agriculture Program, Dominica L. Clisso
Agricultural Education: Graduate Internship Reports
This internship and project report includes validation documents required in meeting the quality criteria for secondary-level programs of instruction in agriculture. The supporting material includes information to receive state and local funding, outline the goals and objectives of the program, along with an overview of the Hanford Agriculture Program and the community.
A Study On The Mental Health Of Women In The Csse Department Of California Polytechnic State University, Sophia Lao, Gabriella Garcia Nobili
A Study On The Mental Health Of Women In The Csse Department Of California Polytechnic State University, Sophia Lao, Gabriella Garcia Nobili
Computer Science and Software Engineering
The goal of this paper is to explore the perceived effect that the Computer Science Curriculum has on the mental health of female students. To discover these effects we conducted 50 interviews over a period of several months with the female students of the Computer Science and Software Engineering (CSSE) department at California Polytechnic State University in San Luis Obispo. The total amount of Computer Science (CSC) majors at this institution is approximately 680, with 150 of them being female, so we were able to gather responses from 33.3% of the female CSC students from our interviews. It is worth …
Finding And Analyzing U235 And U238 Ternary Fission Events In The Niffte Fissiontpc, Gabriel A. Oman
Finding And Analyzing U235 And U238 Ternary Fission Events In The Niffte Fissiontpc, Gabriel A. Oman
Physics
In this analysis, the differences between ternary and binary fission were explored using data from the NIFFTE Collaboration’s fission time projection chamber (TPC). The ratio of binary-to-ternary events for U-235 and U-238 as a function of neutron kinetic energy in the range of 1-30 MeV is presented. The typical value of the ratio is approximately 105 binary fissions per ternary fission, in agreement with previously published measurements. Future work will involve distinguishing the fissions of the two isotopes to provide more insight into this rare process.
Planr.: Planar Learning Autonomous Navigation Robot, Gabrielle S. Santamorena, Daniel Kasman, Jesus Mercado, Ben Klave, Andrew Weisman, Anthony Fortner
Planr.: Planar Learning Autonomous Navigation Robot, Gabrielle S. Santamorena, Daniel Kasman, Jesus Mercado, Ben Klave, Andrew Weisman, Anthony Fortner
Computer Engineering
PLANR is a self-contained robot capable of mapping a space and generating 2D floor plans of a building while identifying objects of interest. It runs Robot Operating System (ROS) and houses four main hardware components. An Arduino Mega board handles the navigation, while an NVIDIA Jetson TX2, holds most of the processing power and runs ROS. An Orbbec Astra Pro stereoscopic camera is used for recognition of doors, windows and outlets and the RPLiDAR A3 laser scanner is able to give depth for wall detection and dimension measurements. The robot is intended to operate autonomously and without constant human monitoring …
Eeg Classification Using Residual Neural Networks, Eren Esener
Eeg Classification Using Residual Neural Networks, Eren Esener
Electrical Engineering
There is a growing desire to understand the EEG (electroencephalogram) signals related with brain activities. In order to analyze EEG signals, they first must be measured by sensors, which induces a lot of noise; then these signals are classified to understand the intended actions. In many cases a neural network is used as the algorithms for classification. A residual neural network (ResNet) is an artificial neural network (ANN) of a kind that are related with the pyramidal cells in the cerebral cortex. The goal of this work is to investigate the viability of ResNets for classifying EEG signals for hand …
Urban Heat Islands: Causes, Impacts, & Mitigation, Megan Rupard
Urban Heat Islands: Causes, Impacts, & Mitigation, Megan Rupard
City and Regional Planning
The purpose of this project is to understand the factors contributing to the urban heat island effect and why it is important to consider when planning a city. This senior project will review the factors that contribute to an urban heat island, what kind of effects urban heat islands have on our city’s and their inhabitants, and how the effects can be mitigated and minimized. This project will review current mitigation strategies that have been developed to combat urban heat islands and analyze the benefits that can be attained from these mitigation strategies. Case studies will be used to understand …
Identifying Hourly Traffic Patterns With Python Deep Learning, Christopher L. Leavitt
Identifying Hourly Traffic Patterns With Python Deep Learning, Christopher L. Leavitt
Computer Engineering
This project was designed to explore and analyze the potential abilities and usefulness of applying machine learning models to data collected by parking sensors at a major metro shopping mall. By examining patterns in rates at which customer enter and exit parking garages on the campus of the Bellevue Collection shopping mall in Bellevue, Washington, a recurrent neural network will use data points from the previous hours will be trained to forecast future trends.
Vehicle Control Unit, Ayusman Saha
Vehicle Control Unit, Ayusman Saha
Computer Engineering
The Vehicle Control Unit (VCU) is the central computer for Cal Poly’s Society of Automotive Engineers (SAE) formula electric race car. It is responsible for processing driver inputs, managing the electric motor, and providing a robust safety net in the case of system failure. Additional functionality of the system include a power limiting mechanism as well as a traction control system. All VCU logic had to abide by SAE International rules for the competition. This project focused solely on the firmware for the VCU.
Keylime, Eli William Partker
Keylime, Eli William Partker
Computer Engineering
Josh, Matt and I knew we wanted to develop a mobile app for our senior project because that is what we found ourselves to be most passionate about during our time here at Cal Poly. We started to think of problems we wanted to solve using an application and we came up with a couple ideas but chose to expand on one. Students come to Cal Poly every year new to the area and the food options San Luis Obispo provides. Many of the restaurants in SLO offer a variety of deals to the community and most of them to …
Expierience, Lukas Suess, Caleb Biggers, Chris Pestano, Gabriel Nguyen
Expierience, Lukas Suess, Caleb Biggers, Chris Pestano, Gabriel Nguyen
Computer Engineering
The goal of this project is to create a realistic diving simulation to allow users to see what it is like to dive beneath the Cal Poly Pier. As it is now, the simulation includes a model of the pier, a few species, and the framework for user movement. These features were created by the previous project teams. Our team will make additions to the existing project such as more creatures and life. Before any additions are added, the existing code must be optimized. This project will show users how scientific surveys can be conducted, so the ability to conduct …
Labeling Paths With Convolutional Neural Networks, Sean Wallace, Kyle Wuerch
Labeling Paths With Convolutional Neural Networks, Sean Wallace, Kyle Wuerch
Computer Engineering
With the increasing development of autonomous vehicles, being able to detect driveable paths in arbitrary environments has become a prevalent problem in multiple industries. This project explores a technique which utilizes a discretized output map that is used to color an image based on the confidence that each block is a driveable path. This was done using a generalized convolutional neural network that was trained on a set of 3000 images taken from the perspective of a robot along with matching masks marking which portion of the image was a driveable path. The techniques used allowed for a labeling accuracy …
Live-Learn Cal Poly: A New-Urbanist Vision For A More Livable And Sustainable Campus, Emily Huang, Justin Wong
Live-Learn Cal Poly: A New-Urbanist Vision For A More Livable And Sustainable Campus, Emily Huang, Justin Wong
City and Regional Planning
Universities across the nation have begun a mixed-use initiative in an effort to densify campuses and diversify retail and housing choices to increase student residency on campus. The movement to model the built environment after traditional mixed-use urbanism has been shown to improve capital flow within the local submarket on campus, foster flexible learning environments to support student success, and reduce automobile dependency. In order to reflect Cal Poly’s Master Plan moving forward, this report intends to follow the guiding principles outlined in the Master Plan while proposing sustainable and efficient land use designs to accommodate future growth at Cal …
Interpolated Perturbation-Based Decomposition As A Method For Eeg Source Localization, Gabriel Zelik Lipof
Interpolated Perturbation-Based Decomposition As A Method For Eeg Source Localization, Gabriel Zelik Lipof
Master's Theses
In this thesis, the perturbation-based decomposition technique developed by Szlavik [1] was used in an attempt to solve the inverse problem in EEG source localization. A set of dipole locations were forward modeled using a 4-layer sphere model of the head at uniformly distributed lead locations to form the vector basis necessary for the method. Both a two-dimensional and a pseudo-three-dimensional versions of the model were assessed with the two-dimensional model yielding decompositions with minimal error and the pseudo-three-dimensional version having unacceptable levels of error. The utility of interpolation as a method to reduce the number of data points to …