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Gas Flow and Heat Transfer Modeling of an Anode-Supported Solid Oxide Fuel Cell Duct

The composite duct considered consists of a thick porous anode layer, the gas flow duct and a solid inter-connector. Unique fuel cell boundary conditions, such as combined thermal boundary conditions on solid walls, mass injection by electrochemical reaction and gas permeation across the interface, were applied in the analysis. The characteristics of gas flow and heat transfer were investigated an

An XML Representation of DAE Systems Obtained from Modelica Models

This contribution presents an XML format for representation of flat Modelica models. The purpose is to offer a standardized model exchange format which is based on the DAE formalism and wich is neutral with respect to model usage. Many usages of models goes beyond what can be obtained from an execution interface offering evaluation of the model equations. Several such usages arises in the area of

Personality of university teachers according to the Defense Mechanism Technique modified (DMTm) as related to their assessment of their university as an organizational setting

The present study considers possible relations between personality and orgnizational-assessment variables. Subjects in a stratified sample of 114 university teachers, 36 women and 78 men, were examined using the Defense Mechanism Technique modified (DMTm), a percept-genetic technique. They also made assessment of their university as an organization. Two data sets were formed initially, the one con

Simulation of Dynamic Discontinuous Recrystallization During Hot Deformation of Pure Copper

A probabilistic cellular automaton technique is employed in the simulation of dynamic discontinuous recrystallization (DDRX) in pure copper under hot deformation conditions. Important features of the present model are calibration of grain growth kinetics against the analytical solution and also the description of a misorientation-dependent grain boundary energy, valid in the entire range of misori

Essay SI - Taking SI to a Higher Level

Workshop held at the 6th International SI Conference, New Orleans, USA, May 2010, discussing the outcomes of a pilot program in Lund appying SI to the essay level of teaching. Both the benefits and the problems were discussed

A low-jitter frequency synthesizer with dynamic phase interpolation for high-speed Ethernet

A frequency synthesizer applied to 1000Base-T Ethernet transceiver as well as 10/100Base-T mode is described. A dynamic voltage-mode phase interpolator is used and a more precise analysis and calculation on degressive interpolating resistors are given. The design not only meets the transmitter's requirement of very accurate rising (falling) edge control but also offers much finer time-interval clo