electrochemical impedance spectroscopy (eis) is a suitable and powerful diagnostic testing method for fuel cells (fcs) since it is non-destructive and provides useful information about fc performance and its components. in this study, for the first time, a 500w cascade type 4 cells stack with integrated humidifier, water separator and internal manifolds was designed, fabricated and tested. the ...

In filling lines equipped with membrane separation devices in the form of filters energy, consumption is only one important working parameters, other being sustainable filter performance terms efficiency. As line typically a valve, intermittent operation an its use. Whereas overall energy filtration process governed by continuous mode, characterised opening/closing contributes most to problems ...

introduction: capnography, is an easy, fast and practical method which its application in the diagnosis of pulmonary thromboendarterectomy (pte) has recently been studied. this study aimed to assess the diagnostic value of end-tidal co2 (etco2) and the alveolar dead space (avds) in the diagnosis of patients suspected to pte who have been referred to the emergency department. materials and metho...

chemical flooding, especially alkaline/surfactant/polymer flooding, is of increasing interest due to the world increasing oil demand. this work shows the aspects of using alkaline/surfactant/polymer as an enhanced oil recovery method in the porous media having a high dead-end pore frequency with various dead-end pore parameters (such as opening, depth, aspect ratio, and orientation). using glas...

The paper describes the construction of a lexical transducer for Korean tha t can be used for s temming a n d generation. The method contains two innovations: (1) two h.'vel rules ms well-formedness constraints in the initial phase; (2) the combinat ion of intersection and composit ion of rule t ransducers in a dee[) cascade ['or the final re.suit.