Teamtechnik (Germany)

Positive ion mass spectrometry enables simplified radiocarbon analysis

Abstract Radiocarbon ( 14 C) analysis underpins research and regulation across archaeology, Earth system science, the life sciences, and bio-content verification, yet remains constrained by reliance on accelerator mass spectrometry (AMS). Although AMS delivers the sensitivity req...

Effect of Pleat Angle on Pressure Drop in H14 HEPA Filters: A Mathematical Analysis with Corrections for Real Filter Behaviour

The influence of pleat angle on the pressure drop of H14 HEPA filters was investigated through a mathematical model that represents the filter as a system of converging–diverging channels coupled with porous filtration media. The analysis was conducted for pleat angles ranging fr...