Electrochemical measurements on cells, I: Simulation of potential distribution with an embedded probe

pre-printMeasurements of electric potential in electrochemical devices such as solid oxide fuel cells (SOFC) or solid oxide electrolyzer cells (SOEC) are often made by placing a reference electrode on the surface. Measurement of electric potential with embedded electrodes (probes) has also been reported [1]. In a typical SOFC, it is assumed that the electronic conductivity is negligible compared to the ionic conductivity. The establishment of local thermodynamic equilibrium, an assumption made in virtually all transport theory, requires that the electronic conductivity cannot be set to zero mathematically [2,3]. Thus, to elucidate the role of electronic conduction in a predominantly ionic conductor, it is necessary to incorporate the electronic conductivity. Also, local equilibrium demands that transport of both ions and electrons (holes) be taken into account to describe the local chemical potential of electrically neutral species, such as oxygen. The local chemical potentials of electrically neutral species determine the thermodynamic stability and thus also the device stability

Benchmarking the Intel®Xeon®Platinum 8160 Processor

This report presents a set of results for different microbenchmarks and applications on the Intel Xeon Platinum8160 Processor, formerly known as Skylake. For simplicity, we will use both Skylake and SKX to refer to this processor. We use the Skylake nodes that will be available in Stampede2. This systemwill provide Intel Knights Landing and Skylake chips interconnected by a 100 Gb/sec Intel Omni-Path (OPA) network with a fat tree topology. The peak performance of the system will be 18 PF.Texas Advanced Computing Center (TACC