A three dimensional, compressible, steady, one phase flow of reactant-product mixture in the air side electrode of proton exchange membrane fuel cell (PEMFC) is numerically studied in this paper. The mixture is composed of three species: oxygen, nitrogen and water vapor. The performance of the cell is enhanced by partial blockage of the flow field channels. Various types of these blocks also ca...

This research was conducted to identify the determinants of SME's performance as well look at underlying conditional factors. Researchers examine direct effect product innovation on and consider moderating role market orientation organizational learning. Using quantitative method, researchers a survey 170 SME owners in DKI Jakarta Province who were selected using purposive sampling method. onli...

In this research, we consider an application of the Bayesian Inferences in machine replacement problem. The application is concerned with the time to replace two machines producing a specific product; each machine doing a special operation on the product when there are manufacturing defects because of failures. A common practice for this kind of problem is to fit a single distribution to the co...

firms pursue diversification for sake enhancing financial performance. some theories state positive relationship between diversification and financial performance. however, there are some theories for negative relationship about the issue. the study has filled the gap that most studies done in developed countries and there are fewer studies in developing country like malaysia. in this study, re...

Abstract The rubber material produced by waste tires greatly pollute the environment. Adding it to asphalt mixture can improve its performance of mixture. elastic pavement paved with has strong durability and reduce noise hazard a certain extent. large-diameter particles into materials inhibit icing probability traffic accidents caused skidding in winter. results show that increase content part...

In this paper an estimator for speech enhancement based on Laplacian Mixture Model has been proposed. The proposed method, estimates the complex DFT coefficients of clean speech from noisy speech using the MMSE  estimator, when the clean speech DFT coefficients are supposed mixture of Laplacians and the DFT coefficients of  noise are assumed zero-mean Gaussian distribution. Furthermore, the MMS...

pistachio nut (pistacia vera l.) is one of the most delicious and nutritious nuts in the world. in order to increase the added value of the pistachio nuts, it is necessary to develop new products to meet consumer needs. this is the first paper on pistachio halva. the product was developed using pistachio paste (as main ingredient), mixture of sugar-glucose, egg white and citric acid. the effect...