A5070891745- Cardiovascular and Diving-Related Complications
- Disaster Response and Management
- Traumatic Ocular and Foreign Body Injuries
- Cardiovascular Health and Disease Prevention
- Occupational Health and Safety Research
- Injury Epidemiology and Prevention
- Risk and Safety Analysis
- Online and Blended Learning
- Speech and dialogue systems
- Child Nutrition and Feeding Issues
- Healthcare Technology and Patient Monitoring
- Icing and De-icing Technologies
- Maritime and Coastal Archaeology
- Restraint-Related Deaths
- Ultrasound and Hyperthermia Applications
- Prenatal Substance Exposure Effects
- Autopsy Techniques and Outcomes
- Combustion and Detonation Processes
- Automotive and Human Injury Biomechanics
- Conservation Techniques and Studies
- Obesity, Physical Activity, Diet
- Underwater Vehicles and Communication Systems
- Atrial Fibrillation Management and Outcomes
- Neuroscience of respiration and sleep
- Aerospace Engineering and Energy Systems
Duke Medical Center
2022-2023
Duke University
2015-2023
North Carolina State University
2023
NSWC Panama City Division
2015-2017
Naval Surface Warfare Center
2015-2017
Underwater blasts propagate further and injure more readily than equivalent air blasts. Development of effective personal protection countermeasures, however, requires knowledge the currently unknown human tolerance to underwater blast. Current guidelines for prevention blast injury are not based on any organized risk assessment, data or experimental data. The goal this study was derive assessments using well-characterized exposures in open literature. dataset compiled 34 case reports...
Decompression sickness (DCS) due to inert gas supersaturation remains one of the major risks for scuba divers and can occur despite adherence prevention schedules staged decompression. Post-dive echocardiography venous emboli (VGE) detection has low sensitivity DCS outcome is unable provide real-time physiological monitoring underwater. Alternatively, we present progress towards collecting ultrasound data while at pressure an exploration into a quantitative assessment decompression stress....
A total of 47 real-world cases were re-created in a laboratory environment. Cases identified from the IACP/Dupont® and Safariland survivors' databases. Exemplar armor was obtained for testing laboratory. Details surrounding incident determined ammunition stand off distance matched. The placed on standard preconditioned roma plastilina clay block struck same location as reported case study. Both depth deformation volume crater recorded. Based analysis, average those involving minimal soft...
Rebreather diving has one of the highest fatality rates per man hour any activity in world. The leading cause death is hypoxia, typically from equipment or procedural failures. Hypoxia causes very few symptoms prior to causing loss consciousness. Additionally, since electronics responsible for controlling oxygen levels rebreathers often control their alarm systems, frequently divers do not receive external warnings. This study investigated use a forehead pulse oximeter as an independent...
Doppler ultrasound (DU) is used to detect venous gas emboli (VGE) post dive as a marker of decompression stress for diving physiology research well new procedure validation minimize sickness risk. In this article, we propose the first deep learning model VGE grading in DU audio recordings.A database real-world data was assembled and labeled purpose developing algorithm, totaling 274 recordings comprising both subclavian precordial measurements. Synthetic also generated by acquiring baseline...
The submarine H.L. Hunley was the first to sink an enemy ship during combat; however, cause of its sinking has been a mystery for over 150 years. set off 61.2 kg (135 lb) black powder torpedo at distance less than 5 m (16 ft) bow. Scaled experiments were performed that measured and shock tube explosions underwater propagation blasts through model hull. This data used in combination with archival experimental evaluate risk crew from their own torpedo. blast produced likely caused flexion hull...
Doppler ultrasound (DU) is used in decompression research to detect venous gas emboli the precordium or subclavian vein, as a marker of stress. This relevance scuba divers, compressed air workers and astronauts prevent sickness (DCS) that can be caused by these bubbles upon after sudden reduction ambient pressure. data graded expert raters on Kisman-Masurel Spencer scales are associated DCS risk. Meta-analyses, well efforts computer-automate DU grading, both necessitate access large...
A recent rise in snorkeling-related deaths Hawaii has inspired several bans on full face snorkel masks (FFSMs). However, while there are theories to explain the deaths, little physiological data exists about way FFSMs provide gas an exercising subject. To evaluate safety of FFSM concept, this study was designed test how use a mask (FFSM) may be physiologically different than conventional snorkel, and assess if any those differences could lead increased risk for snorkeler. Ten (10) volunteer...
Doppler ultrasound (DU) measurements are used to detect and evaluate venous gas emboli (VGE) formed after decompression. Automated methodologies for assessing VGE presence using signal processing have been developed on varying real-world datasets of limited size without ground truth values preventing objective evaluation. We develop report a method generate synthetic post-dive data DU signals collected in both precordium subclavian vein with degrees bubbling matching field-standard grading...