Gravity ventilators rely simply on air buoyancy to extract air and are widely used to exhaust air contaminants and heat from workplaces using minimal energy. They are designed to maximize the exhaust flow rate, but the rain penetration sometimes causes malfunctioning. In this study, the characteristics of rain penetration through a ventilator were examined… (More)
In Microscopy and Microanalysis, an article, MAM1401332, Kim et al., was posted on First View, but shortly after, a co-author spotted an error at Figure 3c whereby a white rule appeared where it did not belong.
In this paper, we proposed a new method to increase the pattern quality on the polymer film graved by a roll-to-roll hot embossing apparatus. To expand the curing time during roll-to-roll hot embossing process, a belt is used around the patterned roller. This belt applies pressure on the film and patterned roller while the generated pattern cools down. To… (More)
This paper describes the analysis of Pneumatic Balloon Actuator (PBA). To do this, Finite Element Method (FEM) is used. In this paper, no-load characteristic of PBA is studied and through this, the displacement and stress of PBA can be calculated.