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Articles 1 - 23 of 23
Full-Text Articles in Social and Behavioral Sciences
Accelerometry And Global Navigation Satellite Systems Derived Training Loads, Abdulmalek Bursais
Accelerometry And Global Navigation Satellite Systems Derived Training Loads, Abdulmalek Bursais
Electronic Theses and Dissertations
The objectives of this dissertation include 1) to review accelerometry and Global Navigation Satellite System (GNSS) derived measures used to monitor training load, 2) to investigate the validity and reliability of accelerometers (ACCs) to identify stepping events and quantify training load, 3) to assess the relationship between accelerometry and Global Navigation Satellite Systems (GNSS) derived measures in quantifying training load. In Study I, acceleration data was collected via two tri-axial ACC (Device A and Device B) sampling at 100Hz mounted closely together at the xiphoid process level. Each participant (n=30) performed two trials of straight-line walking, running, and …
Digital Earth: The Impact Of Geographic Technology Through The Ages, Mishka Vance Huq
Digital Earth: The Impact Of Geographic Technology Through The Ages, Mishka Vance Huq
Theses and Dissertations
Geographic technology encompasses a wide range of geographic knowledge, concepts, processes, and artifacts. Because of its interdisciplinarity and integration with other technologies, the paper examines the diffuse impacts of geographic technology within the evolving relationship between technological and societal developments over time.
A Novel Spatio-Temporal Examination Of Children's Accessibility, Exposure, And Engagement To Parks And Recreation Spaces In Middlesex-London, Ontario, Malcolm K. Little
A Novel Spatio-Temporal Examination Of Children's Accessibility, Exposure, And Engagement To Parks And Recreation Spaces In Middlesex-London, Ontario, Malcolm K. Little
Electronic Thesis and Dissertation Repository
Children are spending more free time engaged in activities indoors, rather than in outdoor environments such as parks and recreation spaces. Parks and recreation spaces provide amenities that promote physical, cognitive, and social health among children. As it relates to the complexities of children’s living situations, properly measuring children’s levels of interactions with these spaces is poorly understood in geography research.
By examining various attributes of children, this thesis improves on the measurement of children’s levels of interactions with parks and recreation spaces. Research herein utilized household survey data, a high-resolution GIS dataset of environmental factors, and GPS logs from …
Exploring The Match Demands Of Division I Women’S Collegiate Soccer, Robert W. Sausaman
Exploring The Match Demands Of Division I Women’S Collegiate Soccer, Robert W. Sausaman
Electronic Theses and Dissertations
The purpose of this dissertation is to shed light on the physical demands of women’s soccer at the NCAA division I college level. Though research does exists describing the physical demands of women’s soccer, the vast majority seeks to explain the physical demands association with the professional and international level. This dissertation sought to: 1) examine the physical demands of NCAA division I women’s soccer and 2) observe changes in physical demands of two NCAA division I women’s soccer players over a four-year career using a case study approach.
Study 1 examined the physical demands of twenty-three athlete from a …
Cemetery Management In A Gis Framework: A Case Study Of Woodland Hills Memorial Park, Maureen Schmidt
Cemetery Management In A Gis Framework: A Case Study Of Woodland Hills Memorial Park, Maureen Schmidt
All Graduate Theses, Dissertations, and Other Capstone Projects
his paper aims to examine the potential uses and applications of geospatial technologies for cemetery management. The Woodland Hills Memorial Park in Mankato, Minnesota, was used as a case study. The hard copy, handwritten records of the Woodland Hills Memorial Park were converted to digital formats, and then combined with GPS gathered data using GIS. The traditional method of storing and keeping these records is time consuming, as the curator must hand write all the information into the physical books. The maps of the park are also hand-drawn, which makes their examination and upkeep tedious. By creating digital copies of …
Ground Deformation Studies And Evacuation Behavior During Eruptions At Guatemalan Volcanoes, Hans Lechner
Ground Deformation Studies And Evacuation Behavior During Eruptions At Guatemalan Volcanoes, Hans Lechner
Dissertations, Master's Theses and Master's Reports
Volcanic eruptions can be an especially problematic hazard when considering the uncertainty in eruption timing and magnitude coupled with challenges associated with delivering warnings to remote areas and facilitating effective evacuations. The hazards presented by Guatemala’s active volcanoes demand enhanced monitoring capabilities and instrumentation infrastructure. Strengthening the link between the physical and social sciences should lead to more accurate, reliable, and timely hazard information to the people living in proximity to the volcano and facilitate rational decisions and actions that reduce their level of risk. While there is no one single technique that can provide unambiguous diagnostics about the timing, …
Algorithms For Constructing Vehicle Trajectories In Urban Networks Using Inertial Sensors Data From Mobile Devices, Umana Ahmed
Algorithms For Constructing Vehicle Trajectories In Urban Networks Using Inertial Sensors Data From Mobile Devices, Umana Ahmed
Computational Modeling & Simulation Engineering Theses & Dissertations
Vehicle trajectories are an important source of information for estimating traffic flow characteristics. Lately, several studies have focused on identifying a vehicle’s trajectory in traffic network using data from mobile devices. However, these studies predominantly employed GPS coordinate information for tracking a vehicle’s speed and position in the transportation network. Considering the known limitations of GPS, such as, connectivity issues at urban canyons and underpasses, low precision of localization, high power consumption of device while GPS is in use, this research focuses on developing alternate methods for identifying a vehicle’s trajectory at an intersection and at a urban grid network …
Exploration Of New Methods In Long Distance Transportation Data Collection And Tourism Travel In Vermont, Benjamin Kaufman
Exploration Of New Methods In Long Distance Transportation Data Collection And Tourism Travel In Vermont, Benjamin Kaufman
Graduate College Dissertations and Theses
ABSTRACT
Human transportation patterns have continued to shift and increase in rate as technology has made travel between spatially disparate locations more feasible. These movements are responsible for approximately one third of global carbon emissions, and account for one half of Vermont’s greenhouse gas output. Modeling transportation behaviors is difficult due to changing travel patterns and issues of surveying human participants. Long distance travel patterns are especially difficult and have not received the attention that urban mobility has within the literature.
In this Masters thesis, I describe current methods of transportation data collection and propose new methods, as well as …
Children's Physical Activity And The Built Environment: The Impact Of Neighbourhood Opportunities And Contextual Environmental Exposure, Christine A. Mitchell
Children's Physical Activity And The Built Environment: The Impact Of Neighbourhood Opportunities And Contextual Environmental Exposure, Christine A. Mitchell
Electronic Thesis and Dissertation Repository
Childhood obesity rates have risen dramatically since 1981, in part due to decreased physical activity (PA) levels. Research suggests that PA is influenced in part by an individual’s exposure to and engagement with their built environment. Using a multi-tool protocol, this thesis examines how (a) neighbourhood opportunities facilitate or constrain children’s moderate-to-vigorous PA (MVPA) and (b) contextual environmental exposure facilitates or constrains children’s MVPA. Results suggest that children’s MVPA is influenced by their built environment, but more so by the contextual environments that they are directly exposed to rather than their overall neighbourhood settings. Children are mobile and unlikely to …
A Survey On Potential Privacy Leaks Of Gps Information In Android Applications, Srinivas Kalyan Yellanki
A Survey On Potential Privacy Leaks Of Gps Information In Android Applications, Srinivas Kalyan Yellanki
UNLV Theses, Dissertations, Professional Papers, and Capstones
Android-based smart phones are extremely common today. However, it is believed that nearly half of the Android devices are vulnerable to an attack that alters the functionality of an app with malicious software. The malware can collect users’ sensitive data from the phone. In particular, there are hundreds of location-based applications available nowadays in the Google Play store or other app stores. The very famous services called “Location Based Services” are used by many apps on mobile phones to track the geographical coordinates of the device. Such location information can be leaked to an attacker via malware.
In this thesis, …
Children's Neighbourhood Geographies: Examining Children's Perception And Use Of Their Neighbourhood Environments For Healthy Activity, Janet E. Loebach
Children's Neighbourhood Geographies: Examining Children's Perception And Use Of Their Neighbourhood Environments For Healthy Activity, Janet E. Loebach
Electronic Thesis and Dissertation Repository
This dissertation examines children’s everyday neighbourhood activities, and the role of the local environment in supporting or limiting their healthy behaviours. Research from the last two decades has documented a dramatic decline in the time children spend playing in their neighbourhood settings, and engaging in local active and independent travel. Traditionally, neighbourhood-based activities have fostered key developmental and health outcomes, including higher levels of physical fitness, the negotiation of new social relationships, and increased cognitive and environmental competence. The processes of carving out neighbourhood ‘domains’ for independent activity and establishing community relationships are also linked to the development of a …
Identifying Ditch Geometry And Top Of The Bank Location Using Airborne Lidar Point Cloud, Naime Celik
Identifying Ditch Geometry And Top Of The Bank Location Using Airborne Lidar Point Cloud, Naime Celik
Open Access Theses
The geometry of agricultural drainage ditches is very important in crop production as it impacts drainage of cropland and affects vegetation and soil erosion along the banks of the ditches. Thus, implementation of water conservation and management practices in engineered and natural ditches necessitates determination of ditch geometry along the reach of the ditch. This study explores the use of airborne commercial Light Detection and Ranging (LiDAR) technology to identify the top of the ditch banks. The method was developed to obtain the normalized cross sectional shape of the ditch using one-dimensional spline fits to ground classified points from the …
Automatic Identification Of Points Of Interest In Global Navigation Satellite System Data: A Spatial Temporal Approach, Khoa Anh Tran
Automatic Identification Of Points Of Interest In Global Navigation Satellite System Data: A Spatial Temporal Approach, Khoa Anh Tran
USF Tampa Graduate Theses and Dissertations
In addition to the emergence of smartphones and tablets in recent years, the rise of Global Navigation Satellite Systems (GNSS) has allowed mobile tracking applications to become popular and be put into many uses. Analyzing tracking records to identify points of interest (POIs) is useful for both prediction applications and research such as human behavior analysis, transportation planning, and especially travel surveys. Past research in travel surveys has shown that a GPS mobile phone-based survey is a useful tool for collecting information about individuals. Moreover, a passive travel survey collection is preferred to an active travel survey method by the …
Compression Of Gps Trajectory Data : Benchmarking Framework And New Approach, Jonathan Muckell
Compression Of Gps Trajectory Data : Benchmarking Framework And New Approach, Jonathan Muckell
Legacy Theses & Dissertations (2009 - 2024)
GPS-equipped mobile devices such as smart phones and in-car navigation units are collecting enormous amounts of spatial and temporal information that traces a moving object's path. The exponential increase in the amount of such trajectory data has caused three major problems. First, transmission of large amounts of data is expensive and time-consuming. Second, queries on large amounts of trajectory data require computationally expensive operations to extract useful patterns and information. Third, GPS trajectories often contain large amounts of redundant data that waste storage and cause increased disk I/O time. These issues can be addressed by algorithms that reduce the size …
Vertical Deformation Along The San Andreas Fault, Garrett Thornton
Vertical Deformation Along The San Andreas Fault, Garrett Thornton
Open Access Theses & Dissertations
There have been numerous M 6+ earthquakes along the San Andreas Fault System (SAFS) (Schwartz et al., 1984) (Figure. 1.1) in the historical past. These rupture events have created millions of dollars worth of damage, and have been responsible for multiple lives lost. An improved understanding of the motions and crustal characteristics along the SAFS can lead to better hazard mitigation (Bakun et al., 2005). Horizontal crustal motions of the SAFS have been widely studied and applied to seismic hazard models (WGCEP, 2007), however vertical motions are not often utilized due to their complicated origin and sometimes large uncertainties. This …
International Competition For Satellite-Based Navigation System Services, Robert F. Donnelly
International Competition For Satellite-Based Navigation System Services, Robert F. Donnelly
Graduate Program in International Studies Theses & Dissertations
The goal of this work is to review the current state of Global Navigation Satellite System (GNSS) development and its potential impact on the social, economic, and political dynamics of the various states fielding the systems. The most recognizable GNSS is the US GPS. It is the only operational system functioning at the time of this writing and has become part of the global commons. GPS, by virtue of its uniqueness, is considered the 'gold standard' of satellite based positioning, navigation, and timing systems. This uniqueness has also enabled the US to fully capitalize on the sizable economic dividends gained …
Discovering Park History And Natural Resources Through Interpretive Geocaching, Jessica Leigh Rosier
Discovering Park History And Natural Resources Through Interpretive Geocaching, Jessica Leigh Rosier
Culminating Projects in Geography and Planning
Since its invention in 2000, geocaching is enjoyed by enthusiasts who wish to combine technology with a love for the outdoors. Geocachers use Global Positioning Systems (GPS) receivers and satellite data to search for latitude and longitude coordinates all over the world. Upon locating the coordinates, participants can find anything from a hidden object to a scenic viewpoint. Aside from fostering outdoor recreation, geocaching can serve as a useful tool to promote learning about the natural resources and history of the area being explored.
It was proposed that those who participated in geocaching at Wild River State Park in Minnesota …
A Gps Enabled Ipod Touch For Skiers, Camila Dorin
A Gps Enabled Ipod Touch For Skiers, Camila Dorin
Honors Theses
The purpose of my senior project was to design and build a system that provides GPS capabilities to the iPod touch. The system is used in conjunction with an iPod application, giving skiers the possibility to have access to the following outputs: graph of speed during run, distance skied, calories burned, and map of the slopes followed. The system consists of a GPS receiver, an Arduino microcontroller, a Wifi Shield, and iPod touch, and an iPod application. A central point during the development of the system was the transmission of data from one piece of hardware to the other and …
Multipurpose Map Designs For Gps Surface-Vehicle Navigation: Spatial Knowledge And Advisory Functions, Caitlan A. Rizzardo
Multipurpose Map Designs For Gps Surface-Vehicle Navigation: Spatial Knowledge And Advisory Functions, Caitlan A. Rizzardo
Browse all Theses and Dissertations
Current car navigation systems primarily utilize track-up maps with spatial turn arrows, which facilitate turn decision-making but do not facilitate acquisition of spatial knowledge of the region. North-up maps do facilitate acquisition of regional spatial knowledge, however, these displays sometimes have arrows heading in directions misaligned with a driver's forward view, such as when the car is heading south. Drivers have difficulty making turn decisions in these misaligned maps because of stimulus-response reversals (Chan and Chan, 2005; Levine, 1982; Levine, Marchon and Hanley, 1984; Montello, 2010). A new display was designed using a fixed orientation north-up map and added a …
Integrating Custom Mapping And Structure Preplanning With Gis For Emergency Responders, Zachary M. Hittie
Integrating Custom Mapping And Structure Preplanning With Gis For Emergency Responders, Zachary M. Hittie
Masters Theses, 2010-2019
Accurate information can mean the difference between life and death for emergency responders and the people they serve. At the Harrisonburg Fire Department, laptops with customized databases for street maps and building preplans are one source of information for first responders. Another available resource is a Geographic Information System for the City of Harrisonburg and Rockingham County. However, ESRI’s ArcGIS® software is far from user-friendly in a mobile atmosphere. The objective of this research is to develop new software that integrates the ArcGIS® tool suite with custom street map files and structure preplan databases into a single application on a …
In-Car Navigation Systems: The Effects Of Landmark Specificity And Map Rotation On Spatial Knowledge And Route Acquisition, Tiffany N. Saffell
In-Car Navigation Systems: The Effects Of Landmark Specificity And Map Rotation On Spatial Knowledge And Route Acquisition, Tiffany N. Saffell
Browse all Theses and Dissertations
Current in-car navigation systems do not refer to environmental landmarks when providing directions to drivers. Instead, they provide guidance by presenting drivers with distance-to-turn information. Default displays use track-up map orientations. These display conditions do not facilitate the acquisition of spatial knowledge. As a consequence, drivers using these systems are unlikely to acquire spatial knowledge needed to judge the reasonableness of the directions they are receiving, leaving them susceptible to accepting directions that are grossly incorrect and dangerous (Forbes and Burnett, 2007). Landmarks have been shown to be critical sources of information when people acquire both route and configural spatial …
An Evolutionary Model Of Parabolic Dune Development: Blowout To Mature Parabolic, Padre Island National Seashore, Texas, Winston Mckenna
An Evolutionary Model Of Parabolic Dune Development: Blowout To Mature Parabolic, Padre Island National Seashore, Texas, Winston Mckenna
LSU Master's Theses
The Texas barrier islands have been studied and well documented in relation to barrier island evolution and morphology (Leatherman, 1979; Morton, 1994; White and Weise, 1980). The detailed analysis and mapping of various dune types and systems that comprise Padre Island National Seashore, specifically parabolic dunes, is the focus of this research. Dune surveys and doqq’s, along with wind and weather records were used to develop an improved morphodynamic model for parabolic dunes. The wind records were provided by the Padre Island National Seashore, the National Data Climate Center, and the Texas Coastal Ocean Observation Network. Individual dune surveys were …
Avl And Response Time Reduction: Image And Reality, Charles Russo
Avl And Response Time Reduction: Image And Reality, Charles Russo
Electronic Theses and Dissertations
Automatic vehicle locator (AVL) systems, utilizing military's global positioning system, may impact response time to law enforcement calls for service. In order to evaluate the impacts of AVL on response time to calls for service at the Altamonte Springs Police Department (ASPD), computer aided dispatch (CAD) data from years 1999 to 2003 were analyzed. The analysis of each of the data sets consisted of an initial sequence chart, an analysis of variance (ANOVA), a means plot and a linear regression. Interviews of ASPD personnel were conducted to understand user perceptions of AVL. Based on the ANOVA results, trends indicate that …