Thermal and mechanical characterization of borosilicate glass

Pseudomonas aeruginosa biofilm formation on endotracheal tubes requires multiple two-component systems

“…Some of the TCSs discovered in this study are likely to be specific to the polyvinylchloride (PVC)-based surface of ETTs and other indwelling devices [105,106], and thus of clinical importance. Reports suggest that commonly used polymers and glass vary widely in their physical properties such as surface charge, hydrophobicity, roughness, topography, stiffness and chemical propertires [107][108][109][110]. The difference in the biofilm phenotype of gltR and retS mutants [16,40] on PVC, polystyrene and glass indicates that surface's material properties could be one of the governing factors for bacterium's ability to adhere and form a biofilm.…”

“…The major component of ETTs is PVC. The elastic moduli of PVC, polystyrene and borosilicate glass are 14.5, 3.3 and 64 GPa, respectively [107][108][109]. This suggests that PVC is likely the most elastic material (363.6 % of elongation before yield) followed by polystyrene (1.5-3 % of elongation before yield) and glass is least elastic [108,112].…”

Surface tension and critical point measurements of methane + propane mixtures

“…Thermal contraction (or expansion) of these borosilicate glass capillaries has a limited impact on surface tension measurement by the differential capillary rise method as it is the difference of the capillary radii that is required (see Equations 4 and 6). Based on a thermal expansion coefficient of 3.3 x 10 -6 K -1 for borosilicate glass 57 , the difference in radii would vary by 1.8 x 10 -5 mm in the temperature range from (270 to 315) K. This is significantly lower than the uncertainty in the measurement for each individual capillary radius and thereby has been excluded as a source of uncertainty.…”

Experimental investigation and numerical modeling of the thermal behavior of a micro-heater

“…The existing chemical species in each layer with their corresponding atomic percentage are given in Table 2. These data were used to identify the nature of the constituent of the µH and thus to trace back their thermo-physical properties from literature (Bergman and Incropera 2011;Bouras et al 2009;Lopes and Felisberti 2004). The layers L 0 and L 1 are clearly identified as being, respectively, constituted of an alloy of aluminum and alumina.…”

“…Given that the dome shaped µH volume involves a circular deformation of the ribbon/paper set, the motion of the scrolling media in the deformed part is assumed to be rotational with a velocity at mid thickness equal to the scrolling speed. The thermal properties of the scrolling layers are taken from literature (Bergman and Incropera 2011;Lemeunier et al 2012). The considered thicknesses are respectively 9.1 µm for the ribbon layer and 350 µm for the printing paper.…”