The Partial Pressure of Inspired Carbon Dioxide Exposure Levels in the Extravehicular Mobility Unit.

NASA has been making efforts to assess the carbon dioxide (CO₂) washout capability of spacesuits using a standard CO₂ sampling protocol. This study established the methodology for determining the partial pressure of inspired CO₂ (Pco₂) in a pressurized spacesuit. We applied the methodology to characterize Pco₂ for the extravehicular mobility unit (EMU).

3D facial and dento-alveolar imaging.

This article reviews three-dimensional (1D) surface scanning contrasted with 3D imaging. Precise techniques are now available for capture of the face and craniofacial structures as well as improved introoral scanning for the production of virtual 3D casts of the dentition. Facial and intraoral scanners have established an accuracy that makes them viable for use in the clinical and research arenas.