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  • Evaluation of potential exposure risks from 3D printing operations using video and direct reading instrument datalogging

    CO-I Justin Reed

    CO-I Cheri Marcham

    Internal College of Aviation funding supported a multi-year study evaluating potential particle and VOC exposure risks associated with 3-D printing operations. The work involved student collaboration and resulted in multiple peer-reviewed conference posters and presentations at the American Industrial Hygiene Conference and Exhibition (AIHce), including a virtual presentation in 2021.


    ERAU College of Aviation internal funding awarded in 2017–2018 and 2018–2019 supported collaborative research with faculty and a student from the Prescott Safety Science degree program to characterize ultrafine particle, ozone, and volatile organic compound emissions from 3-D printing operations. The research evaluated exposure profiles during printing and post-processing tasks using direct-reading instruments, spatial sampling, and NIOSH EVADE software for task-exposure analysis. Findings identified specific activities, such as resin washing and aerosol spray application, that produced short-term spikes in particle and VOC concentrations, while overall emissions during routine printing remained relatively low. Student-led posters from this work were accepted at the 2019 AIHce, with follow-up analyses accepted for the 2020 conference and subsequently presented virtually at the 2021 AIHce following pandemic-related cancellation of the in-person event.

    Categories: Faculty-Staff

  • Iranian Proxy Groups in Iraq, Syria, and Yemen A Comparative Analysis

    CO-I Hugh Sadri

     After the fall of Saddam Hussein, Tehran’s leaders took advantage of Baghdad’s weak position and put many Iraqi power centers and local groups under their influence using a variety of soft to hard power instruments. After the withdrawal of coalition forces from the region in 2011 and through its proxy networks, Tehran gained a solid foothold in Iraq and Syria under the guise of helping Baghdad and Damascus fight the Islamic State. Likewise, Iranian proxy groups have backed Houthi rebels in Yemen fighting a regime dependent on Saudi Arabia for survival. Our primary research question is: How does Iran develop, employ, and sustain proxy organizations in Iraq, Syria, and Yemen, and what vulnerabilities does its regional strategy face as a result? Our objective is to analyze the role of Iranian influence in its proxy organizations across the Middle East. 

    This study, funded by Joint Special Operations University, offers a fresh perspective to the study of Iranian proxy organizations in Iraq, Syria, and Yemen. Our research employs a comparative analysis of Iranian proxy groups (a target of SOF Research Topics, 2019) across the Middle East. The demise of the Ba’athist Party in Iraq in 2003 created a regional power vacuum gradually filled by Iranian organizations.

    Categories: Faculty-Staff

  • Integrating Expanded and Non-Segregated UAS Operations into the NAS: Impact on Traffic Trends and Safety

    CO-I Dothang Truong

    CO-I Ryan Wallace

    This research led by Richard Stansbury (PI) will provide further insight into the safe integration of sUAS through the forecasting of expanded and non-segregated sUAS operations. The ASSURE research team will collect data to inform the FAA on risk-based methodologies to develop and apply safety rules, regulations, and revised Safety Management System (SMS) protocols based on forecasted UAS operational needs and performance characteristics.


    Categories: Faculty-Staff

231-233 of 233 results