Background: Welcome to TZOA (pronounced ‘zoa’) - the world’s most advanced environment tracker. TZOA uses internal sensors to measure your air quality, temperature, humidity, atmospheric pressure, ambient light, and UV (sun) exposure, all in one wearable device. Objective: Design and build a purified test chamber with zero air particulate to calibrate the TZOA devices against the DusTrak DRX 8533. An aerosolized cloud of ultrafine (0.3 - 20 μm) test dust was used to create the particle events.
Background: Drill availability is a major limitation in developing countries, where surgeons turn to using manual hand-crank drills to perform surgeries. A common hardware drill equipped with a waterproof, sterilizable fabric cover provides a cost-effective solution in the operating room. Objective: Develop, conduct, and analyze a study to quantify the drilling performance of the drill cover solution and compare it against a commercial surgical drill and a manual hand-crank drill.
Objective: Determine if age has an effect on the mechanical properties of bicycle helmets. Tasks: Conducted 1630 helmet impact attenuation tests to measure the effect of age and use on bicycle helmet foam Developed scripts in MATLAB to autonomously post-process the impact data and organize information according to existing helmet databases Wrote the Methods section of the research report to be submitted to the Accident Prevention & Analysis Journal Assisted in protocol development of the helmet and foam core impact attenuation tests Company: MEA Forensic Engineers & Scientists