Improvement of heat and water management in gas diffusion layers (GDL) is a critical issue to high-performance proton exchange membrane fuel cells (PEMFC). In this study, we develop gas–liquid-solid coupled solver simultaneously model the liquid transport, vapor condensation, conjugate transfer, electric conduction their interactions. A stochastic method employed reconstruct 3D structural GDL. ...

This study aims to look at the effectiveness of Guided Discovery Learning (GDL) learning model and Project-Based (PjBL) in terms achievement, self-confidence, students' critical thinking skills Digital Beauty Design course. type research is Quasi experiment. The subjects this were two classes students from Department Cosmetology Education, Padang State University who randomly selected. Data ana...

Sigil is an e-module creation software that can be used by high school teachers to help provide various teaching materials. However, the teacher's ability use still low where teacher not able apply materials in this e-module. E-modules online learning. One of learning models Guided Discovery Learning (GDL) model. For reason, society service for chemistry who are members Padang Panjang Chemistry...

In this paper we examine different approaches to obtain judgments of perceptual prominence. It discusses the use of different scales, the influence of the linguistic level on which the prominence is rated and the normalisation of prominence judgments. We propose the use of a multilevel scale to obtain prominence judgments. It seems that naı̈ve listeners can rate word prominence better than sylla...

In this work, the influence of geometric and mechanical properties constitutive layers a Proton Exchange Membrane Fuel Cell (PEMFC) on system performance was investigated. More specifically, study focused internal electrical resistances due to interlayer contacts. Indeed, contact are one main sources ohmic losses in PEMFC therefore require special attention improve efficiency. To end, Design Ex...