Cure monitoring of thermosetting resin matrix composites during the molding process of polymer matrix composites is important for the quality control and reliable manufacturing of composite products. Since dielectrometry can in situ measure the cure status during Belstaff Sac 554 the actual curing process of polymer matrix composites, it is being widely employed as cure monitoring apparatus. Although dielectrometry is more convenient in measuring the cure status of resin than differential scanning calorimetry (DSC), the former requires complicated calculation to yield the cure information from the dissipation factor of the resin because the Belstaff Soldes measured dissipation factor of the resin by dielectrometry contains viscosity information rather than the degree of cure of the resin. In this paper, the dissipation factor of glass fiber–epoxy composite was measured using developed dielectrometry sensors and an electrical circuit. Then the isothermal degree of cure was calculated and compared with that obtained Blouson Belstaff Scooter from DSC experiments.
In a large number of decisions, the option that does not require a specific action such as filling in a form is chosen frequently. It is a stylized fact that opt-in or opt-out designs for otherwise identical choices lead to vastly different outcomes. Choice options are chosen more frequently simply because they are the no-action alternative or default option. However, direct empirical evidence on the reasons for the popularity of defaults is scarce. We devised a special survey module for the Dutch DNB Household Survey to study potential explanations for default choices. We find that the popularity of the default option is related to different personal traits in economic and non-economic decisions. Financially literate individuals are more likely to take action and opt out the default option in economic decision-making. In non-economic decisions, procrastination increases the popularity of the default while individuals who care much about the opinion of others are more inclined to deviate from the default.