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Modeling of various transport processes in a natural gas reformer

In this study, a three-dimensional calculation method has been developed to simulate and analyze steam reforming of natural gas, and the effects on various transport processes in a duct from a compact steam reformer. The reformer conditions such as the combined thermal boundary conditions on solid walls, mass balances associated with the reforming reactions and gas permeation to/from the porous ca

Lektioner i motvind. Om skola för unga på institution

Det finns en lång tradition av att placera unga människor som begår brott på ungdomshem. Ute på landet, bortom storstadens förmodat destruktiva inflytande, ska de behandlas och anpassas till ett konventionellt liv. Ungdomarna är i högstadie- eller gymnasieåldern. De förväntas gå i skola, de har gått i skola och de vill gå i skola, åtminstone de flesta och i princip. Men skolarbetet har haft en ned

Fostrande förpliktelser : representationer av ett missionsuppdrag i Sydindien under 1900-talets första hälft

Fostering Obligations. Representations of a Mission in South India in the First Half of the 20th Century This thesis investigates how Swedish medical missionaries in South India represented their mission not only as a mission of converting people to Christianity, but also of spreading moral and scientific values in order to found an Indian Lutheran folk church. Missionary narratives were not only

A programmable analog-to-digital converter

In this paper, a programmable analog-to-digital converter (ADC) is proposed. Based on a flexible switched-capacitor stage, the amplifier and integrator is easily transformed to each other. By manipulating the feed path from the quantizer to the MDAC, the function can be programmed between sigma-delta modulators and pipelined ADCs. At the fixed sampling frequency, the proposed ADC can be programmed

Performance Study of Non-Binary Belief Propagation for Decoding Reed-Solomon Codes

In this paper we investigate the frame-error correcting performance of two newly developed, non-binary belief propagation based, soft-in/soft-out decoding algorithms when decoding Reed-Solomon codes. We present results for the AWGN channel indicating that non-binary belief propagation can come close to the performance of the binary adaptive Belief-Propagation algorithm or even slightly better when

Thermodynamic Studies of Macromolecular Models

The thermodynamic properties of single chain polyelectrolyte and protein models are studied using Monte Carlo simulations and (for the polyelectrolyte models) variational calculations and high- and low-temperature expansions. A variational method is used for minimizing Lennard-Jones energies and for estimating end-to-end distances for a rigid Coulomb chain at finite temperatures. A polyelectrolyte