Russia and the World Trade Organization: Will TRIPS Be a Stumbling Block to Accession?

Arbetet som presenteras i denna rapport har utförts på R1K, vilket är en avdelning på Rönnskärsverken, som är en del av New Bolidens koncern. 2007 byggdes ett nytt gassystem med ett flertal nya komponenter. Till detta gassystem fanns bristande information om hur dessa komponenter fungerar och hänger ihop. Detta examensjobb har till syfte att skapa en funktionsbeskrivning i form av en lättläst operatörsmanual, för nya och erfarna operatörer. Informationen till funktionsbeskrivningen har kompilerats från tillverkarmanualer, konstruktionsritningar, informationspärmar, intervjuer samt ABB styrsystem. Bilder har tagits och redigerats, för att ge en illustrativ överblick av fluider och gasers väg genom gassystemet och dess kringutrustning. Information och bilder har sedan sammanställts i en funktionsbeskrivning (Se bilaga 1).The study which is presented in this report has been carried out at R1K, which is a section of the Rönnskär smelter plant. The plant is owned by New Boliden. In the year of 2007 a new gas system containing several new components were built. The operators that were in charge of monitoring the new system were not given sufficient education about the new components and their part in the system as whole. The purpose of this study is to create a function functional description about the system and all its components. The functional description is to be presented in the form of an easy-to-use manual for both experienced and new operators. The manual has been compiled from manufacturer manuals, construction blueprints, scattered operator manuals, knowledge of the ABB operator-system and interviews with various employees. To give the operators and the readers a good visual overview of all the different gas and fluid flows in the system pictures have been taken. All this have been compiled into the operator manual that is the functional description. (See attachment 1)

Understanding Database Reconstruction Attacks on Public Data

In 2020 the U.S. Census Bureau will conduct the Constitutionally mandated decennial Census of Population and Housing. Because a census involves collecting large amounts of private data under the promise of confidentiality, traditionally statistics are published only at high levels of aggregation. Published statistical tables are vulnerable to DRAs (database reconstruction attacks), in which the underlying microdata is recovered merely by finding a set of microdata that is consistent with the published statistical tabulations. A DRA can be performed by using the tables to create a set of mathematical constraints and then solving the resulting set of simultaneous equations. This article shows how such an attack can be addressed by adding noise to the published tabulations, so that the reconstruction no longer results in the original data

Frustrated order on extrinsic geometries

We study, analytically and theoretically, defects in a nematically-ordered surface that couple to the extrinsic geometry of a surface. Though the intrinsic geometry tends to confine topological defects to regions of large Gaussian curvature, extrinsic couplings tend to orient the nematic in the local direction of maximum or minimum bending. This additional frustration is unavoidable and most important on surfaces of negative Gaussian curvature, where it leads to a complex ground state thermodynamics. We show, in contradistinction to the well-known effects of intrinsic geometry, that extrinsic curvature expels disclinations from the region of maximum curvature above a critical coupling threshold. On catenoids lacking an "inside-outside" symmetry, defects are expelled altogether.Comment: 4 pages, 3 figure

Uniqueness of infrared asymptotics in Landau gauge Yang-Mills theory II

We present a shortened and simplified version of our proof \cite{Fischer:2006vf} of the uniqueness of the scaling solution for the infrared asymptotics of Green functions in Landau gauge Yang-Mills theory. The simplification relates to a new RG-invariant arrangement of Green functions applicable to general theories. As before the proof relies on the necessary consistency between Dyson-Schwinger equations (DSEs) and functional renormalisation group equations (FRGs). We also demonstrate the existence of a specific scaling solution for both, DSEs and FRGs, that displays uniform and soft kinematic singularities.Comment: 12 pages, 10 figure

Dynamic wetting with two competing adsorbates

We study the dynamic properties of a model for wetting with two competing adsorbates on a planar substrate. The two species of particles have identical properties and repel each other. Starting with a flat interface one observes the formation of homogeneous droplets of the respective type separated by nonwet regions where the interface remains pinned. The wet phase is characterized by slow coarsening of competing droplets. Moreover, in 2+1 dimensions an additional line of continuous phase transition emerges in the bound phase, which separates an unordered phase from an ordered one. The symmetry under interchange of the particle types is spontaneously broken in this region and finite systems exhibit two metastable states, each dominated by one of the species. The critical properties of this transition are analyzed by numeric simulations.Comment: 11 pages, 12 figures, final version published in PR

Analysing the relationship between ectomycorrhizal infection and forest decline using marginal models

This statistical survey originates from the problem of discovering which relationship exists between root ectomycorrhizal infection and health status of forest plants. The sampling scheme takes observations from roots that come from sectors around the tree resulting in a hierarchical association structure of the observations. Marginal regression models are used to analyze the mean effect of the ectomycorrhizal state on a response variable proxy for the health degree of the plants

Alloying effects on the optical properties of Ge1−x_{1-x}Six_x nanocrystals from TDDFT and comparison with effective-medium theory

We present the optical spectra of Ge$_{1-x}$Si$_x$ alloy nanocrystals calculated with time-dependent density-functional theory in the adiabatic local-density ap proximation (TDLDA). The spectra change smoothly as a function of the compositio n $x$. On the Ge side of the composition range, the lowest excitations at the ab sorption edge are almost pure Kohn-Sham independent-particle HOMO-LUMO transitio ns, while for higher Si contents strong mixing of transitions is found. Within T DLDA the first peak is slightly higher in energy than in earlier independent-par ticle calculations. However, the absorption onset and in particular its composit ion dependence is similar to independent-particle results. Moreover, classical depolarization effects are responsible for a very strong suppression of the abs orption intensity. We show that they can be taken into account in a simpler way using Maxwell-Garnett classical effective-medium theory. Emission spectra are in vestigated by calculating the absorption of excited nanocrystals at their relaxe d geometry. The structural contribution to the Stokes shift is about 0.5 eV. Th e decomposition of the emission spectra in terms of independent-particle transit ions is similar to what is found for absorption. For the emission, very weak tra nsitions are found in Ge-rich clusters well below the strong absorption onset.Comment: submitted to Phys. Rev.