Subsurface geologic formations such as depleted hydrocarbon reservoirs, deep saline aquifers and shale have been considered promising targets for carbon dioxide hydrogen storage. A solid understanding of the interfacial properties multiphase systems, including binary (pure gas-water) ternary (gas mixtures water), is vital to assess reliability storage capacity geological formations. However, mo...

A new design for a DRIFTS cell for in-situ studies in heterogeneous catalysis is presented, which allows for improved reaction control (i.e., gas flow, temperature, minimized background conversion) and for precise kinetic measurements. Specifically, the very low background activity of the cell itself for CO and H2 oxidation makes it possible to study the preferential CO oxidation in H2-rich gas...

Context. HCOOH is one of the more common species in interstellar ices with abundances of 1–5% with respect to solid H2O. With the launch of the Spitzer Space Telescope new infrared spectra have become available of interstellar ices in different environments. So far systematic laboratory studies on HCOOH-containing interstellar ice analogues are lacking. Aims. This study aims at characterizing t...

BACKGROUND The CO2 response test measures the hypercapnic drive response (which is defined as the ratio of the change in airway-occlusion pressure 0.1 s after the start of inspiratory flow [ΔP(0.1)] to the change in P(aCO2) [ΔP(aCO2)]), and the hypercapnic ventilatory response (which is defined as the ratio of the change in minute volume to ΔP(aCO2)). OBJECTIVE In mechanically ventilated pati...

BACKGROUND Patients with advanced cystic fibrosis can benefit from non-invasive positive pressure ventilation (NPPV) for the treatment of acute decompensation as well as for the management of chronic respiratory failure. This study was undertaken to compare the physiological effects of non-invasive proportional assist ventilation (PAV) and pressure support ventilation (PSV) on ventilatory patte...