Biomass compaction during hydrothermal digestion of cellulosic biomass solids may become problematic, particularly as the vertical height of a cellulosic biomass charge increases. The plurality of sources may include cameras having a sensitivity of between 400 nm and 1000 nm andor may include cameras having a sensitivity of between 7 and 14 micrometers. The DPF after-treatment operator interface provides multiple status indications to the operator. Other methods, devices, and systems are also provided. Modulated or functionalized IPD-mesoMOFs can be applied for gas adsorption and molecule separation, catalyst loadings and molecular recognitionimmobilization of biological macromolecules and enzymes.