in this study cross section geometry and material of gasket in proton exchange membrane (pem) fuel cells have been investigated to achieve optimized fuel cell in terms of energy efficiency. the role of gaskets in fuel cells is sealing of gas flow channels and preventing from combination of them. in a pem stack, gasket with approved geometry that suffers more stress has better sealing. for this ...

The minimum detection limit of the method has been determined to be 0.05 mg/m (0.03E-07 lb/ft) for H2SO4/SO3 and 1.2 mg/m 3 (0.75E-07 lb/ft) for SO2 for a standard 60-minute sample. Actual in-stack method detection limits (ISDL) are based on actual source sampling parameters and analytical results. Actual detection limits can be improved through increased stack gas sampled (sample time). For th...

Reservoir characterization plays an important role in different parts of an industrial project. The results from a reservoir characterization study give insight into rock and fluid properties which can optimize the choice of drilling locations and reduce risk and uncertainty. Delineating hydrocarbon bearing zones within a reservoir is the main objective of any seismic reservoir characterization...

the computer simulation program of a practical scale reverse electrodialysis process has been developed based on the program for saline water electrodialysis. the program is applied to compute the performance of an industrial-scale reverse electrodialysis stack (effective membrane area s = 1 m × 1 m = 1 m2, cell pair number n = 300 pairs). the stack operatingconditions are optimized. seawater a...

The fuel cell/supercapacitor passive configuration without using any DC/DC converters is promising in automotive applications as it can downsize the cell stack, maintain peak power capability, improve system efficiency, and remove need of additional control. This paper presents design characterization a hybrid for 60 V light vehicle. A detailed procedure test platform presented with each compon...

This study presents the results of a dioxin abatement programme undertaken in the municipal waste incineration plant of Montcada i Reixac (Barcelona, Spain) after the replacement of an obsolete air cleaning device by a new flue gas treatment system. A number of sampling campaigns were conducted with the aim of characterising stack gas emission levels of polychlorinated dibenzo-p-dioxins (PCDDs)...

Outline zIntroduction zRelated Work zSleepy stack zSleepy stack logic circuits zSleepy stack SRAM zLow-power pipelined cache (LPPC) zSleepy stack pipelined SRAM zConclusion

Due to its potential for multi-gigabit and low latency wireless links, millimeter wave (mmWave) technology is expected to play a central role in 5th generation (5G) cellular systems. While there has been considerable progress in understanding the mmWave physical layer, innovations will be required at all layers of the protocol stack, in both the access and the core network. Discrete-event netwo...

Stack caching speeds Forth up by keeping stack items in registers, reducing the number of memory accesses for stack items. This paper describes our work on extending Gforth’s stack caching implementation to support more than one register in the canonical state, and presents timing results for the resulting Forth system. For single-representation stack caches, keeping just one stack item in regi...