Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Portland State University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 1681 - 1710 of 6897

Full-Text Articles in Entire DC Network

Oregon City School District Enrollment Forecasts 2020-21 To 2029-30, Portland State University. Population Research Center, Charles Rynerson, Joshua Ollinger Mar 2020

Oregon City School District Enrollment Forecasts 2020-21 To 2029-30, Portland State University. Population Research Center, Charles Rynerson, Joshua Ollinger

School District Enrollment Forecast Reports

This report presents a range of three scenarios of district-wide enrollment forecasts by grade level for the Oregon City School District (OCSD) for the 10 year period between 2020-21 and 2029-30. Each enrollment forecast scenario is related to population forecasts that incorporate different assumptions about growth within the District, with the primary differences being the contribution of net migration to the District’s population and age distribution. Individual school forecasts consistent with the middle series are also presented for the 10 year period.

Go to article

Some New Results On Stochastic Comparisons Of Coherent Systems Using Signatures, Ebrahim Amini-Seresht, Baha-Eldin Khaledi, Subhash C. Kochar Mar 2020

Some New Results On Stochastic Comparisons Of Coherent Systems Using Signatures, Ebrahim Amini-Seresht, Baha-Eldin Khaledi, Subhash C. Kochar

Mathematics and Statistics Faculty Publications and Presentations

We consider coherent systems with independent and identically distributed components. While it is clear that the system’s life will be stochastically larger when the components are replaced with stochastically better components, we show that, in general, similar results may not hold for hazard rate, reverse hazard rate, and likelihood ratio orderings. We find sufficient conditions on the signature vector for these results to hold. These results are combined with other well-known results in the literature to get more general results for comparing two systems of the same size with different signature vectors and possibly with different independent and identically distributed …

Go to article

Toxic Ketene Gas Forms On Vaping Vitamin E Acetate Prompting Interest In Its Possible Role In The Evali Outbreak, Robert Strongin Mar 2020

Toxic Ketene Gas Forms On Vaping Vitamin E Acetate Prompting Interest In Its Possible Role In The Evali Outbreak, Robert Strongin

Chemistry Faculty Publications and Presentations

Recent efforts by the Centers for Disease Control and Prevention (CDC), the US Food and Drug Administration (FDA), and state authorities have led to the determination that vitamin E acetate (VEA) is strongly associated with e-cigarette or vaping product use-associated lung injury (EVALI) (1). VEA has been found in nearly all patient lung fluid samples analyzed and not observed in lung fluid from healthy cohorts. Despite strong evidence linking VEA to EVALI, its putative role as a causative agent has yet to be determined. To address the key issue of whether VEA is a just marker or a significant mediator …

Go to article

Dictionary Learning For Image Reconstruction Via Numerical Non-Convex Optimization Methods, Lewis M. Hicks Feb 2020

Dictionary Learning For Image Reconstruction Via Numerical Non-Convex Optimization Methods, Lewis M. Hicks

University Honors Theses

This thesis explores image dictionary learning via non-convex (difference of convex, DC) programming and its applications to image reconstruction. First, the image reconstruction problem is detailed and solutions are presented. Each such solution requires an image dictionary to be specified directly or to be learned via non-convex programming. The solutions explored are the DCA (DC algorithm) and the boosted DCA. These various forms of dictionary learning are then compared on the basis of both image reconstruction accuracy and number of iterations required to converge.

Go to article

The Rise And Infiltration Of Pac-Man And Street Fighter, Angelic Phan Feb 2020

The Rise And Infiltration Of Pac-Man And Street Fighter, Angelic Phan

University Honors Theses

With the social, cultural, and economic influence of video games, it is important to examine why they have become such popular forms of entertainment. Particularly, why certain franchises have continued to persist among the growing industry. Two notable franchises are Pac-Man and Street Fighter, which are also most frequently discussed in scholarly texts. I supplement a literature review with an analysis of marketing texts to illuminate a series of shared factors that help explain both games' popularity despite the apparent dissimilarities of their content. First, my work helps us look across multiple scholarly papers to create a bigger picture …

Go to article

Modeling Post-Fire Successional Trajectories Under Climate Change In Interior Alaska Using Landis Ii, Shelby A. Weiss Feb 2020

Modeling Post-Fire Successional Trajectories Under Climate Change In Interior Alaska Using Landis Ii, Shelby A. Weiss

Systems Science Friday Noon Seminar Series

Alaska boreal forest ecosystems are experiencing a greater frequency of wildfire relative to the region’s historic fire regime. These increases in fire frequency, as well as annual burned area, increase the probability of forests re-burning within shorter intervals than were experienced historically. Such changes to the fire regime have the potential to shift successional trajectories in this ecosystem. To better understand potential changes in vegetation composition following short-interval, repeat fires, we are using LANDIS-II, a forest landscape model, to simulate changes in forest composition in response to climate change and increasing fire frequency. This seminar will include a description of …

Go to article

Novel View Synthesis In Time And Space, Simon Niklaus Feb 2020

Novel View Synthesis In Time And Space, Simon Niklaus

Dissertations and Theses

Novel view synthesis is a classic problem in computer vision. It refers to the generation of previously unseen views of a scene from a set of sparse input images taken from different viewpoints. One example of novel view synthesis is the interpolation of views in between the two images of a stereo camera. Another classic problem in computer vision is video frame interpolation, which is important for video processing. It refers to the generation of video frames in between existing ones and is commonly used to increase the frame rate of a video or to match the frame rate to …

Go to article

Realist Evaluation: A Systems Approach For Understanding And Assessing Complex Social Programs, Dora Raymaker Feb 2020

Realist Evaluation: A Systems Approach For Understanding And Assessing Complex Social Programs, Dora Raymaker

Systems Science Friday Noon Seminar Series

Realist evaluation, a theory-driven approach to program evaluation grounded in realist philosophy, is designed to address the question: What works for whom, to what extent, in what circumstances, and why? It is emerging as a powerful alternative to traditional approaches to intervention evaluation, such as randomized control trials, particularly in settings of high complexity and/or high stakeholder heterogeneity. Realist evaluation takes a holistic, non-linear, systems approach, and can support any research methodologies. This seminar provides an overview of realist evaluation and discussion of potential applications with programs targeting social change.

Go to article

Narrowing The Cognitive Distance Between Engineers And Customers: A Novel Approach, Based On Fuzzy Cognitive Mapping, Byung Sung Yoon Feb 2020

Narrowing The Cognitive Distance Between Engineers And Customers: A Novel Approach, Based On Fuzzy Cognitive Mapping, Byung Sung Yoon

Dissertations and Theses

During concept development, product developers consider product users and their future experience, cost, development and manufacturing efficiency, product function/quality, and differentiation of the product in the market. Development teams often struggle to adequately address all of these considerations, due to the following reasons: (1) Differences in technological and experiential knowledge, methods used, and communication styles that make it difficult for customers/user, marketing, and engineering to communicate effectively. As a result, important factors may not be sufficiently considered. (2) Product design factors, including technological alternatives, functions, features, benefits, and customer value are interdependent: in some cases, customers are willing to sacrifice …

Go to article

Assessing Differences Between Three Virtual General Chemistry Experiments And Similar Hands-On Experiments, Cory Hensen, Gosia Glinowiecka-Cox, Jack Barbera Feb 2020

Assessing Differences Between Three Virtual General Chemistry Experiments And Similar Hands-On Experiments, Cory Hensen, Gosia Glinowiecka-Cox, Jack Barbera

Chemistry Faculty Publications and Presentations

To date the efficacy of virtual experiments is not well understood. To better understand what differences may exist between a hands-on learning environment and a virtual learning environment, three experiments were chosen for investigation. For each experiment, approximately half of the students completed a hands-on version of the experiment and the other half completed a virtual version. After completing the given experiment, students were compared on: their ability to meet the learning objectives for that experiment, their responses to six affective scales, and their grade on a laboratory report. Differences were found on four learning objectives. Two of these learning …

Go to article

Paradigm Shifts In Large-Scale Educational Change: Uncovering The Oregon Education Investment Board's Theory Of Change-In-Action, Johanna Kathryn Blackford Feb 2020

Paradigm Shifts In Large-Scale Educational Change: Uncovering The Oregon Education Investment Board's Theory Of Change-In-Action, Johanna Kathryn Blackford

Dissertations and Theses

Education system leaders and policymakers around the globe expend vast amounts of resources on educational reform efforts and despite positive intentions, most attempts to affect educational change fail to realize large-scale, sustainable, positive outcomes--yet some have. While it is widely acknowledged that no two systems' educational change journeys are the same, what is becoming clear is that there is significant similarity among the thinking or paradigms underpinning theories of change-in-action guiding positive large-scale system-wide reform. This research highlights four change paradigms and suggests that a collective learning paradigm guided by systems thinking represents the paradigm shift associated with successful large-scale …

Go to article

Faculty Senate Monthly Packet February 2020, Portland State University Faculty Senate Feb 2020

Faculty Senate Monthly Packet February 2020, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The February 3, 2020 Monthly packet includes the February agenda and appendices and the Faculty Senate minutes and attachments from the meeting held January 6, 2020.

Go to article

Groomed Jet Mass At High Precision, Adam Kardos, Andrew J. Larkoski, Zoltán Trócsányi Feb 2020

Groomed Jet Mass At High Precision, Adam Kardos, Andrew J. Larkoski, Zoltán Trócsányi

Portland Institute for Computational Science Publications

We present predictions of the distribution of groomed heavy jet mass in electron-positron collisions at the next-to-next-to-leading order accuracy matched with the resummation of large logarithms to next-to-next-to-next-to-leading logarithmic accuracy. Resummation at this accuracy is possible through extraction of necessary two-loop constants and three-loop anomalous dimensions from fixed-order codes.

Go to article

Two- And Three-Loop Data For Groomed Jet Mass, Adam Kardos, Andrew J. Larkoski, Zoltán Trócsányi Feb 2020

Two- And Three-Loop Data For Groomed Jet Mass, Adam Kardos, Andrew J. Larkoski, Zoltán Trócsányi

Portland Institute for Computational Science Publications

We discuss the status of resummation of large logarithmic contributions to groomed event shapes of hadronic final states in electron-positron annihilation. We identify the missing ingredients needed for next-to-next-to-next-to-leading logarithmic (NNNLL) resummation of the mMDT groomed jet mass in e+e− collisions: the low-scale collinear-soft constants at two-loop accuracy, c(2)Sc, and the three-loop non-cusp anomalous dimension of the global soft function, γ(2)S. We present a method for extracting those constants using fixed-order codes: the EVENT2 program to obtain the color coefficients of c(2)Sc, and MCCSM for extracting γ(2) …

Go to article

Fatty Acid Stable Isotopes Add Clarity, But Also Complexity, To Tracing Energy Pathways In Aquatic Food Webs, Ariana M. Chiapella, Martin J. Kainz, Angela L. Strecker Feb 2020

Fatty Acid Stable Isotopes Add Clarity, But Also Complexity, To Tracing Energy Pathways In Aquatic Food Webs, Ariana M. Chiapella, Martin J. Kainz, Angela L. Strecker

Environmental Science and Management Faculty Publications and Presentations

Tracing the flow of dietary energy sources, especially in systems with a high degree of omnivory, is an ongoing challenge in ecology. In aquatic systems, one of the persistent challenges is in differentiating between autochthonous and allochthonous energy sources to top consumers. Bulk carbon stable isotope values of aquatic and terrestrial prey often overlap, making it difficult to delineate dietary energy pathways in food webs with high allochthonous prey subsidies, such as in many northern temperate waterbodies. We conducted a feeding experiment to explore how fatty acid stable isotopes may overcome the challenge of partitioning autochthonous and allochthonous energy pathways …

Go to article

Teaching Doppler Ultrasound In An Introductory Laboratory For Pre-Health Students, Theodore Stedmark, Thomas Allen, Ralf Widenhorn Feb 2020

Teaching Doppler Ultrasound In An Introductory Laboratory For Pre-Health Students, Theodore Stedmark, Thomas Allen, Ralf Widenhorn

Physics Faculty Publications and Presentations

We present a novel activity to demonstrate the Doppler shift of a sound wave, incident at an angle, upon a moving reflector. This activity is intended for use in an introductory physics laboratory focused on preparing students for the health and medical fields. The activity is designed to simulate Doppler velocity measurements from ultrasound imaging. While there have been previous qualitative discussions of blood flow measurements in the physics education literature, they were without associated laboratory activities.1 The lab can be part of a life science physics curriculum that has been identified in need of reforms to meet the …

Go to article

More Effective Than We Thought: Central Bank Independence And Inflation In Developing Countries, Ana Caolina Garriga, Cesar M. Rodriguez Feb 2020

More Effective Than We Thought: Central Bank Independence And Inflation In Developing Countries, Ana Caolina Garriga, Cesar M. Rodriguez

Economics Faculty Publications and Presentations

This study examines the effect of legal central bank independence on inflation in developing countries. In spite of the policy consensus suggesting that central bank independence is an effective tool to control inflation, the evidence is still limited, particularly for developing countries. Using a novel dataset, we analyze the effect of central bank independence on inflation for a sample of 118 developing countries between 1980 and 2013. We find that higher central bank independence is associated with lower inflation rates. This effect on inflation is stronger the more democratic a country is, but it is also present in non-democratic countries. …

Go to article

An Essay On Proof, Conviction, And Explanation: Multiple Representation Systems In Combinatorics, Elise Nicole Lockwood, John Caughman, Keith Weber Feb 2020

An Essay On Proof, Conviction, And Explanation: Multiple Representation Systems In Combinatorics, Elise Nicole Lockwood, John Caughman, Keith Weber

Mathematics and Statistics Faculty Publications and Presentations

There is a longstanding conversation in the mathematics education literature about proofs that explain versus proofs that only convince. In this essay, we offer a characterization of explanatory proofs with three goals in mind. We first propose a theory of explanatory proofs for mathematics education in terms of representation systems. Then, we illustrate these ideas in terms of combinatorial proofs, focusing on binomial identities. Finally, we leverage our theory to explain audience-dependent and audience-invariant aspects of explanatory proof. Throughout, we use the context of combinatorics to emphasize points and to offer examples of proofs that can be explanatory or only …

Go to article

Sea Level, Tidal, And River Flow Trends In The Lower Columbia River Estuary, 1853-Present, Stefan Talke, Andrew Mahedy, David A. Jay, Patrick Lau, Conrad Hilley, Amanda Hudson Feb 2020

Sea Level, Tidal, And River Flow Trends In The Lower Columbia River Estuary, 1853-Present, Stefan Talke, Andrew Mahedy, David A. Jay, Patrick Lau, Conrad Hilley, Amanda Hudson

Civil and Environmental Engineering Faculty Publications and Presentations

Few tidal records are available pre-1900 for the Pacific Ocean. We improve data coverage by recovering historical tabulations and digitizing analog tide rolls from Astoria, Oregon for 1853-1876. Nearly 13,500 overlapping images of tides from 1855-1870 were digitized at a 6 minute resolution using a line-finding algorithm. Available hourly and high/low tabulations were also digitized, as were nearby hourly records from 1933-1943. Uncertainty was assessed by evaluating manual staff measurements, historical documents, and leveling surveys. Results suggest that uncertainty in mean sea level varies from ± 0.07m (early 1850s) to ± 0.03m (1867-1876) and is driven primarily by datum and …

Go to article

Inversion Of Head Waves In Ocean Acoustic Ambient Noise, Jie Li, Peter Gerstoft, Martin Siderius, Jun Fan Feb 2020

Inversion Of Head Waves In Ocean Acoustic Ambient Noise, Jie Li, Peter Gerstoft, Martin Siderius, Jun Fan

Electrical and Computer Engineering Faculty Publications and Presentations

The virtual head wave is produced through cross-correlation processing of signals containing the real, acoustic head wave. The virtual head wave has the same phase speed as the head wave, but the travel time is offset, thus the term virtual. The virtual head wave, like the real head wave, propagates in a direction corresponding to the seabed critical angle. The virtual head wave travel time varies with array depth and water column depth. However, in a refracting environment, the travel time is also dependent on the depth-dependent sound speed profile. Previously, the virtual head wave was shown as observable from …

Go to article

Reshuffling The Columbia River Basalt Chronology — Picture Gorge Basalt, The Earliest- And Longest-Erupting Formation, Emily B. Cahoon, Martin J. Streck, Anthony A.P. Koppers, Daniel P. Miggins Jan 2020

Reshuffling The Columbia River Basalt Chronology — Picture Gorge Basalt, The Earliest- And Longest-Erupting Formation, Emily B. Cahoon, Martin J. Streck, Anthony A.P. Koppers, Daniel P. Miggins

Geology Faculty Publications and Presentations

The Columbia River Basalt Group (CRBG) is the world’s youngest continental flood basalt province, presumably sourced from the deep-seated plume that currently resides underneath Yellowstone National Park in the northwestern United States. The earliest-erupted basalts from this province aid in understanding and modeling plume impingement and the subsequent evolution of basaltic volcanism. We explore the Picture Gorge Basalt (PGB) formation of the CRBG, and discuss the location and geochemical significance in a temporal context of early CRBG magmatism. We report new ARGUS-VI multicollector 40Ar/39Ar incremental heating ages from known PGB localities and additional outcrops that we can geochemically classify as …

Go to article

Improved Estimation For Saleh Model And Predistortion Of Power Amplifiers Using 1-Db Compression Point, Haider Al Kanan, Xianzhen Yang, Fu Li Jan 2020

Improved Estimation For Saleh Model And Predistortion Of Power Amplifiers Using 1-Db Compression Point, Haider Al Kanan, Xianzhen Yang, Fu Li

Electrical and Computer Engineering Faculty Publications and Presentations

This paper proposes an improved estimation approach for modelling RF power amplifiers (PAs) using the Saleh behavioural model. The proposed approach is appropriate for solid-state PA technologies. The 1-dB compression point of the PA is included in the estimation approach to improve the estimation of the Saleh coefficients. Thus, expressions are derived to describe the relationship between the parameters of the Saleh model and the manufacturing specifications of PAs: gain (G), third-order intercept point (IP3) and 1-dB compression point (P1dB). This method is a simple estimation of a memoryless amplitude-to-amplitude (AM/AM) nonlinearity to benefit RF designers …

Go to article

Program Presentation, Portland State University, Omid Fotuhi Jan 2020

Program Presentation, Portland State University, Omid Fotuhi

Winter Symposium

Dr. Fotuhi is a Research Associate at the Learning Research and Development Center based at the University of Pittsburgh. Dr. Fotuhi’s work focuses on the psychology of performance and motivation in the domains of academics, athletics, and workplace achievement. He earned his Ph.D. in psychology from the University of Waterloo, after which he worked at Stanford University where he co-founded the CollegeTransition Collaborative—one of the largest multi-institution collaborations to deliver proven psychological interventions to over 40,000 students—as well as the Stanford Interventions Lab—a collaborative research group committed to sharing and scaling proven insights from psychology to promote better performance and …

Go to article

Before And After The Storm: Interactions Between Tree-Fall Canopy Gaps, Plant Phenology, And Frugivorous Lemurs In Masoala National Park, Madagascar, Monica Sue Mogilewsky Jan 2020

Before And After The Storm: Interactions Between Tree-Fall Canopy Gaps, Plant Phenology, And Frugivorous Lemurs In Masoala National Park, Madagascar, Monica Sue Mogilewsky

Dissertations and Theses

Madagascar is one of Earth's top biodiversity hotspots, with 80% of life on the island considered endemic. Among the endemic species are lemurs, a diverse group of non-human primates. Unfortunately, Madagascar's diversity, including lemurs, is threatened by habitat degradation and loss. Despite intense anthropogenic pressure over the past 50 years, scientists have not detected any lemur extinctions during this period. Some researchers have proposed that lemurs' adaptations to natural disturbances have provided these taxa resiliency against anthropogenic disturbances. Certainly, Madagascar experiences an extreme disturbance regime: the island experiences an average of over three cyclones a year. These cyclones create numerous, …

Go to article

Centering Equity In Oregon’S 100 Year Water Vision: A Student-Led Policy Paper Prepared By The Oregon Water Stories Team At Portland State University, Clare T. Mcclellan, Sadie Boyers, Victoria Cali De Leon, Tony Cole, Laura Cowley-Martinson, Shersten Finley, Dustin Lanker, Julia Seydel, Aakash Nath Upraity, Janet Cowal, Melissa Haeffner Jan 2020

Centering Equity In Oregon’S 100 Year Water Vision: A Student-Led Policy Paper Prepared By The Oregon Water Stories Team At Portland State University, Clare T. Mcclellan, Sadie Boyers, Victoria Cali De Leon, Tony Cole, Laura Cowley-Martinson, Shersten Finley, Dustin Lanker, Julia Seydel, Aakash Nath Upraity, Janet Cowal, Melissa Haeffner

Environmental Science and Management Faculty Publications and Presentations

The purpose of this report is to provide evidence for the need to further intentionally incorporate equity into Oregon’s 100 Year Water Vision. Four case studies contextualize this need and highlight the variety of water issues throughout the state, supported by linguistic analyses of local newspapers. As Oregon policy-makers are responsible for ensuring working water systems for all Oregonians, we also suggest implementable criteria for the evaluation of equity in water issues and decision-making. This student-led and interdisciplinary report comes from the Haeffner-Cowal Oregon Water Stories research lab at Portland State University.

Go to article

Classifying Seabed Parameters From Normal Incidence Reflections: Model Comparison And Inversion Technique, Megan Frantz Jan 2020

Classifying Seabed Parameters From Normal Incidence Reflections: Model Comparison And Inversion Technique, Megan Frantz

Dissertations and Theses

As of the year 2019, only about five percent of the seafloor has been topologically mapped and classified for type (e.g., sand, silt, gravel). To rapidly survey the seabed from surface ships or underwater vehicles, acoustic remote sensing methods are needed. In this thesis, acoustic measurements and inverse modeling is investigated as a way to classify seabed type based on estimating parameters such as density, sound speed, and interface roughness. The method uses normal incident acoustic measurements that can be made using either a single beam echo sounder or the normal incident beams from a side scan sonar. The inverse …

Go to article

Pine Rosin As A Toxic Cannabis Extract Adulterant, Jiries Meehan-Attrash, Robert Strongin Jan 2020

Pine Rosin As A Toxic Cannabis Extract Adulterant, Jiries Meehan-Attrash, Robert Strongin

Chemistry Faculty Publications and Presentations

Pine rosin (colophony) has been identified as a new adulterant in cannabis oil. Its inhalation toxicity poses a significant health concern to users. For example, pine rosin fumes are released during soldering, and have been cited as a causative agent of occupational asthma. Symptoms also include desquamation of bronchial epithelium, which has also been observed in EVALI patients. The sample analyzed herein was acquired from a cannabis industry source, also contains medium chain triglycerides and oleamide, the latter of which is a hypnotic that is commonly found in the synthetic marijuana product Spice, or K2. A combination of NMR and …

Go to article

Pdxscholar Annual Report 2019, Karen Bjork, Sherry Buchanan, David Coate, Bertrand Robinson, Stacey Schlatter Jan 2020

Pdxscholar Annual Report 2019, Karen Bjork, Sherry Buchanan, David Coate, Bertrand Robinson, Stacey Schlatter

Library Faculty and Staff Publications and Presentations

This report details the ninth year of operation for PDXScholar, Portland State University's institutional repository, as well as the growth of Portland State University Library's publishing services. The report covers the period between January 1, 2019 and December 31, 2019.

Go to article

A Polarity-Based Approach For Optimization Of Multivalued Quantum Multiplexers With Arbitrary Single-Qubit Target Gates, Kevin Jin, Tahsin Soffat, Justin Morgan, Marek Perkowski Jan 2020

A Polarity-Based Approach For Optimization Of Multivalued Quantum Multiplexers With Arbitrary Single-Qubit Target Gates, Kevin Jin, Tahsin Soffat, Justin Morgan, Marek Perkowski

Electrical and Computer Engineering Faculty Publications and Presentations

Previous work has provided methods for decomposing unitary matrices to series of quantum multiplexers, but the multiplexer circuits created in this way may be highly non-minimal. This paper presents a new approach for optimizing quantum multiplexers with arbitrary single-qubit quantum target functions and ternary controls. For multivalued quantum multiplexers, we define standard forms and two types of new forms: Fixed Polarity Quantum Forms (FPQFs) and Kronecker Quantum Forms (KQFs). Drawing inspiration from the usage of butterfly diagrams, we devise a method to exhaustively construct new forms. In contrast to previous butterfly-based methods, which are used with classical Boolean functions, these …

Go to article

Modeling Spatiotemporal Patterns Of Pm2.5 At The Sub-Neighborhood Scale Using Low-Cost Sensor Networks, Philip Jeffrey Orlando Jan 2020

Modeling Spatiotemporal Patterns Of Pm2.5 At The Sub-Neighborhood Scale Using Low-Cost Sensor Networks, Philip Jeffrey Orlando

Dissertations and Theses

Epidemiological research has demonstrated an adverse relationship between fine particulate matter (PM2.5) and human health. While PM2.5 continues to pose a significant global health risk, there is still the need to further characterize exposures at the intra-urban scale. Land use regression is a statistical modeling technique which is used to predict air pollution concentrations at high resolution from a limited number of monitoring sites. However, the existing regulatory monitoring networks are typically not dense enough to apply these techniques. We explored the potential of using low-cost PM2.5 sensor networks to overcome the limitations of the existing …

Go to article

First Prev Next Last