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AirSniffer: A Smartphone-Based Sensor Module for Personal Micro-Climate Monitoring

Description: Environmental factors can have a significant impact on an individual's health and well-being, and a primary characteristic of environments is air quality. Air sensing equipment is available to the public, but it is often expensive,stationary, or unusable for persons without technical expertise. The goal of this project is to develop an inexpensive and portable sensor module for public use. The system is capable of measuring temperature in Celsius and Fahrenheit, heat index, relative humidity, and carbon dioxide concentration. The sensor module, referred to as the "sniffer," consists of a printed circuit board that interconnects a carbon dioxide sensor, a temperature/humidity sensor, an Arduino microcontroller, and a Bluetooth module. The sniffer is small enough to be worn as a pendant or a belt attachment, and it is rugged enough to consistently collect and transmit data to a user's smartphone throughout their workday. The accompanying smartphone app uses Bluetooth and GPS hardware to collect data and affix samples with a time stamp and GPS coordinates. The accumulated sensor data is saved to a file on the user's phone, which is then examined on a standard computer.
Date: May 2016
Creator: Smith, Jeffrey Paul
Partner: UNT Libraries

GPS: Rocket

Description: This video discusses research on developing a rocket recovery system with sensor networks and wireless communication. The research team project was to develop a GPS/GSM based tracking system for the recovery of high power model rockets. This research is part of Research Experiences for Teachers (RET) in Sensor Education, a National Science Foundation (NSF) funded grant project.
Date: 2013
Creator: Gscheidle, Karl H.; Hardy, Debra; Kulle, Gregory; Bih, Michael & Acevedo, Miguel F.
Partner: UNT College of Engineering

Simulink Based Modeling of a Multi Global Navigation Satellite System

Description: The objective of this thesis is to design a model for a multi global navigation satellite system using Simulink. It explains a design procedure which includes the models for transmitter and receiver for two different navigation systems. To overcome the problem, where less number of satellites are visible to determine location degrades the performance of any positioning system significantly, this research has done to make use of multi GNSS satellite signals in one navigation receiver.
Date: December 2016
Creator: Mukka, Nagaraju
Partner: UNT Libraries

Factorial Validity and Measurement Invariance of the Test of Performance Strategies, Sport Anxiety Scale, and the Golf Performance Survey Across Age Groups

Description: The purpose of this study was to examine the factorial validity and measurement equivalence of the Test of Performance Strategies (TOPS; Thomas, Murphy, & Hardy, 1999); the Sport Anxiety Scale (SAS; Smith, Smoll, & Schultz, 1990); and the Golf Performance Survey (GPS; Thomas & Over, 1994) across age groups in a representative sample of amateur golfers. Based on archival data, participants comprising this study were 649 younger adult (n = 237) and older adult (n = 412) amateur golfers who played in the Dupont World Amateur Golf Championship in Myrtle Beach, South Carolina. The participants completed a set of questionnaires including psychological skills and strategies (e.g., self-talk, goal setting, imagery, etc.) used during competition, sport-specific competitive trait anxiety, and psychomotor skills and involvement in golf. Results demonstrated that the original factor structure of the TOPS competition subscale, the SAS, and the GPS, did not adequately fit the data among this sample of younger and older adult amateur golfers. Further exploratory and confirmatory factor analyses established evidence of factorial validity with the TOPS competition subscale, SAS, and the GPS with both younger and older adult amateur golfers. Configural, metric, scalar, and strict measurement invariance were identified in relation to the TOPS competition subscale, SAS, and the GPS across age cross-group comparisons. In general, the analyses demonstrated support that the TOPS competition subscale, SAS, and the GPS can be utilized with confidence with older adult amateur golfers, as well as conducting group comparisons with younger adult amateur golfers. The findings from this study have several future research directions and practical implications for structuring effective interventions with older adult amateur athletes.
Date: August 2014
Creator: Deiters, Jay A.
Partner: UNT Libraries

GPS/GSM Based Tracking System for the Recovery of High Power Model Rockets

Description: This report discusses research on GPS/GSM based tracking systems for the recovery of high power model rockets. This research is part of Research Experiences for Teachers (RET) in Sensor Education, a National Science Foundation (NSF) funded grant project.
Date: 2013
Creator: Bih, Michael; Gscheidle, Karl H.; Hardy, Debra; Kollipara, Naveen & Kulle, Gregory
Partner: UNT College of Engineering

Rocket Recovery Systems for High Power Model Rocketry

Description: This presentation discusses research on rocket recovery systems for high power model rocketry using Arduino microprocessors with GPS and GSM shields for tracking. This research is part of Research Experiences for Teachers (RET) in Sensor Education, a National Science Foundation (NSF) funded grant project.
Date: 2013
Creator: Bih, Michael; Gscheidle, Karl H.; Hardy, Debra; Kulle, Gregory; Acevedo, Miguel F.; Kollipara, Naveen et al.
Partner: UNT College of Engineering

Shoreline Erosion at Mad Island Marsh Preserve, Matagorda County, Texas

Description: The Nature Conservancy of Texas (TNC) is concerned with the amount of shoreline erosion taking place at its Mad Island Marsh Preserve (MIMP), located in Matagorda Bay, Texas. The MIMP is a 7,100 acre nature preserve that borders the Gulf Intracoastal Waterway and is eroded by waves generated by barge traffic. TNC is concerned that erosion will shorten Mad Island Bayou which may increase the salinity of Mad Island Lake; with detrimental effects on lake and marsh habitats. This study uses GPS technology to map the current shoreline and GIS to determine ten year erosion rates (1995 - 2005). Results show that erosion is occurring at various rates along the shoreline as well as along the oxbow bend in Mad Island Bayou.
Date: August 2005
Creator: Mangham, Webster
Partner: UNT Libraries

GPS CaPPture: a System for GPS Trajectory Collection, Processing, and Destination Prediction

Description: In the United States, smartphone ownership surpassed 69.5 million in February 2011 with a large portion of those users (20%) downloading applications (apps) that enhance the usability of a device by adding additional functionality. a large percentage of apps are written specifically to utilize the geographical position of a mobile device. One of the prime factors in developing location prediction models is the use of historical data to train such a model. with larger sets of training data, prediction algorithms become more accurate; however, the use of historical data can quickly become a downfall if the GPS stream is not collected or processed correctly. Inaccurate or incomplete or even improperly interpreted historical data can lead to the inability to develop accurately performing prediction algorithms. As GPS chipsets become the standard in the ever increasing number of mobile devices, the opportunity for the collection of GPS data increases remarkably. the goal of this study is to build a comprehensive system that addresses the following challenges: (1) collection of GPS data streams in a manner such that the data is highly usable and has a reduction in errors; (2) processing and reduction of the collected data in order to prepare it and make it highly usable for the creation of prediction algorithms; (3) creation of prediction/labeling algorithms at such a level that they are viable for commercial use. This study identifies the key research problems toward building the CaPPture (collection, processing, prediction) system.
Date: May 2012
Creator: Griffin, Terry W.
Partner: UNT Libraries