Unsupported vanadium antimonate catalysts with Sb/V ratios of 1 and 5 and samples with the latter ratio supported on alumina were studied in toluene and propane ammoxidation to benzonitrile and acrylonitrile, respectively, and were characterized by X-ray photoelectron spectroscopy (XPS) analysis before and after catalytic tests. Activity data for toluene ammoxidation suggest that excess antimony w

Short essay on Salvador (1985)

Popular Abstract in Swedish Professionella balettdansare börjar vanligtvis dansa balett redan vid 8–10 års ålder; pojkar ett par år senare än flickor. Det finns flera utbildningsvägar både i Sverige och utomlands. De flesta börjar sin yrkeskarriär vid 18–20 års ålder. I Sverige är pensionsåldern för institutionsdansare 41–44 år, då man efter 20 års anställning vid svenska institutioner kan få maxiBallet dancers have been shown to have frequent problems with the musculoskeletal system, but little is generally known about the prevalences of musculoskeletal disorders and about working conditions of professional ballet dancers in Sweden. The aims of the thesis were: to analyse the prevalence, location and recurrence of self-reported musculoskeletal disorders (pain) in professional ballet danc

This article is an gender and body, and the act of cleaning as a symbolic dividing-line.

The purpose of the present study was to demonstrate possible effects on Collembola populations by changes in tree composition in natural birch forest in coastal North Norway. In the study area (Dønnes, Nordland County) parts of the natural mixed birch forest has been replanted with Norway spruce and Sitka spruce. Soil samples were collected in June and October 2004. A total of 52 species of Colle

A combustion system was developed to burn a low value gas in the VT4400 IGT engine demonstrator. The combustor was designed in an engine configuration consisting of a single LCV combustor operating in combination with six LP combustors.

Abstract is not available

Feature quantization is a crucial component for efficient large scale image retrieval and object recognition. By quantizing local features into visual words, one hopes that features that match each other obtain the same word ID. Then, similarities between images can be measured with respect to the corresponding histograms of visual words. Given the appearance variations of local features, traditio

In this paper we consider the problem of linear quadratic regulator (LQR) performance for cascade control structures of series coupled systems. The necessary and sufficient condition for the linear quadratic performance of a cascade control structure to achieve the same performance as any given centralized LQR is obtained. The cascade problem could be seen as a special case of the network control

This work demonstrates how the structure of our Galaxy, the Milky Way, can be unveiled with the use of space astrometry. It consists of two parts, of which the first is a brief introduction to the fields of Galactic structure, covering the Galaxy's stellar constituents, how the Galaxy was formed and how it has evolved over time, both chemically and kinematically. Also the workings of space astrome

This paper presents a combined experiment and identification procedure, well suited to obtain low-order dynamic models of a patients’ response to continuous drug administration. The experiment requires no a priori information and is of very short duration. The identification method provides both a parametric low-order model, and an estimate of the parameter error covariance. It has been demonstrat

Gate-defined quantum devices in an InGaAs/InP heterostructure are achieved by introducing a HfO2 layer as the gate dielectric. The high-kappa layer is grown by atomic layer deposition and the fabrication process is described in detail. Electrical measurements at low temperature reveal the Coulomb blockade effect. Magnetotransport characterization is also carried out for the devices made from this