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Membrane Filtration for Fractionation of Biomass Compounds - Process Design for the Separation of Hemicelluloses and Lignin from Alkaline Solutions

Popular Abstract in Swedish Ny innovativ processdesign har resulterat i två processer som kan göra tillverkningen av förnyelsebara plaster och bränslen konkurrenskraftiga mot dagens fossila alternativ. Den nya designen har gjort vissa processteg upp mot 40 gånger så effektiva som med dagens teknik. Vikten av att ställa om dagens samhälle, som till stor del är beroende av fossila resurser, till eIt is important to replace fossil resources such as oil, coal and natural gas with renewable raw materials for the production of materials and fuels in order to reduce environmental impact. Furthermore, these raw materials should preferably be residues, e.g. agricultural or forest residues, in order not to compete with the production of human food and animal feed. High molecular weight arabinoxyla

A New Rounding Method Based on Parallel Remainder Estimation for Goldschmidt and Newton-Raphson Algorithms

Newton-Raphson and Goldschmidt algorithms can be sped up by using variable latency hardware architectures for rounding division, square root and their reciprocals. A new approach based on a rounding method with remainder estimate calculated concurrently with the algorithm was proposed in [5]. This paper presents an study of the hardware implementation of this approach and shows that does not suppo

More than Metaphor. Approaching the Human Cadaver in Archaeology.

Developments in body theory have had a strong impact on archaeology in recent years, but the concept of the body has tended to remain abstract. The term “body” is often used as a synonym for self or person, and the remains of bodies and body parts have often been approached theoretically as signs or symbols. While this has emphasized the importance of the body as a cultural construct and a social

Encoders and decoders for braided block codes

We consider construction and realization aspects of encoders and decoders for braided block codes (BBCs), which are a powerful class of iteratively decodable codes. An efficient encoder is proposed as well as a pipeline decoder realization. Also, upper and lower bounds on the free distance of BBCs are derived.

Compaction, Flow and Dispersion in a Chromatographic Column

An experimental and theoretical study of compaction, flow and hydrodynamic dispersion in a chromatographic column containing non-rigid particles is presented. Experiments were performed using chromatographic columns packed with either a dextran-based chromatographic gel or glass beads. It was found that both the velocity variations and the dispersion irregularities in the column containing the co

Analysis of Response and Development of Permanent Deformation of Unbound Granular Materials Using a Testing Box Technique

Popular Abstract in Swedish Växande krav på transporters kvalitet och kvantitet ger höga förväntningar på vägarnas kvalitet. Därför har omfattande resurser ägnats åt vägbyggnad och särskilt förbättring av befintliga vägar för att bemöta krav på säkerhet, komfort och bärighet. Ett välfungerande vägnät är en viktig komponent i den ekonomi- och samhällsutvecklingsprocess som förbrukar en stor del av The main objective of this thesis is to study the response and development of permanent deformation in unbound granular materials, theoretically and experimentally. A testing box technique is used here to more closely simulate the behaviour of unbound aggregates subjected to external vertical loading. A small box device (800×800×800 mm) is employed to test both the response and permanent deforma