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The aim of the thesis is to develop a numerical model based on first principles for the simulation of change of size of soil pores during drying of soft soil. This model is suitable for the type of soil consisting of clay with layered structure, such as Montmorillonite. In this study, the geometry of the soil pore is idealized by a triangle consisting of three sand grains and clay fabrics connecting the sand grains. The simplified structure is named as unit cell in this thesis. The change of size of soil pore results from deformation of clay fabrics, and the clay fabric deforms due to the variation of water content. The length of clay fabric is related to the chemical potential of water by applying the Diffuse Double Layer theory as well as geometrical considerations. The soil mass is modelled by combining unit cells of different original pore sizes, which is randomly generated. The model is built by Matlab. The inputs include soil properties (porosity, clay fraction, lamellar properties, etc) and distribution factors; the outputs are total volume of soil and volume of wate, further derivation gives the Water Retention Curve and Soil Shrinkage Curve. In conclusion, the model is able to provide reasonable prediction of change of soil pore size. The shrinkage of pore due to drying of soil is observed. It is found that the multiple unit

efforts in the initial cloning of the mhaC gene of M. catarrhalis strain O12E as well as their work in constructing the bocA1 and bocA2 mutations in B. mallei and B. pseudomallei and generation of recombinant clones expressing these genes. Both parties also did a tremendous amount of work in developing the adherence assays for B. mallei and B. pseudomallei. I would also like to thank Jonathan Hassel for his unrelenting work in attempting to obtain a clone expressing M. catarrhalis MhaC and MhaB2 in the recombinant E. coli background. Mr. Hassel also contributed to our work with B. pseudomallei and B. mallei by creating constructs to express His-tagged BocA1 and BocA2 and purifying these proteins for their use in generation of polyclonal antibodies. I wish to acknowledge John Lazarus and Dr. Mark Wooten for performing the qRT-PCR used to show expression of BocA1 and BocA2 in B. mallei and B. pseudomallei as well as William Grose for some of his preliminary work with these organisms. Lastly, I would like to thank Dr. Donald Woods at the University of Calgary for providing the B. mallei and B. pseudomallei strains used in these studies along with his

ii Executive summary 7e European biodiesel market is quite complex and highly uncertain. Its complexity stems from many economic issues, including joint supply of re-lated products in di:erent markets, composite supply of the feedstock, joint demand of mineral and vegetable fuels, composite demand sharply di:erent between the food and fuel markets, constraints on supply and demand, and signi;cant market distortion due to government intervention. Moreover, its uncertainty stems from a large number of potential drivers for adoption, for example: the diversi;cation and higher security of supply, the higher biodeg-radability of the feedstock and hence a greater safety, renewability, lower pol-lution emissions in combustion, a reduction in carbon emission, and economic advantages for the producers of feedstock. However, biofuels have also come under scrutiny, criticism, and even strong opposition, for competing with food for land, incentivizing deforestation, distorting the markets of energy and

IMAGE QUALITY IN RADIOTHERAPY ELECTRONIC

Aspects to study the establishment of a separate college for the training of librarians. The two committees submitted their report before the end January 30, 1961 The first full-time faculty position in library science, that of associate professor, was created by virtue of the Board of Regents

I would like to dedicate this work to my wife, Julie, for whom I am eternally grateful.

In this thesis we study examples of triple spaces, both their structure theory, their invariant differential operators as well as analysis on them. The first major results provide us with some examples of triple spaces which are strongly spherical, i.e. satisfy some conditions reminiscent of properties of symmetric spaces. The algebras of invariant differential operators for these spaces are studied and the conclusion is that most of them are non-commutative. Finally, we restrict our attention to a single triple space, giving a specific polar decomposition and corresponding integration formula, and studying the relations between open orbits of parabolic subgroups, multiplicities and distribution vectors. Resumé Fokus for denne afhandling er tripelrum, det være sig deres strukturteori, deres invariante differentialoperatorer, såvel som analyse på dem. Det første hovedresultat giver os en række eksempler på triplerum, som er stærkt sfæriske, dvs. opfylder nogle betingelser, der tilsvarer nogle egenskaber ved symmetriske

of real rank zero

The classical trace map is a highly non-trivial map from algebraic K-theory to topological Hochschild homology (or topological cyclic homology) introduced by Bökstedt, Hsiang and Madsen. It led to many computations of algebraic K-theory of rings. Hesselholt and Madsen recently introduced a Z/2-equivariant version of Waldhausen S�-construction for categories with duality. The output is a certain spectrum with involution, called the real K-theory spectrum, and associated bigraded groups KRp,q(C, D) analogous to Atiyah’s real (topological) K-groups. This thesis develops a theory of topological Hochschild homology for categories with duality, and a Z/2equivariant trace map from real K-theory to it. The main result of the thesis is the theorem that stable KR of the category of projective modules over a split square zero extension of a ring is equivalent to the real topological Hochschild homology of the ring with appropriate coefficients. This is the real version of the celebrated Dundas-McCarthy theorem for ordinary