Sökresultat

[abstract missing]

Abstract in UndeterminedSmall-scale distributed generators connected tothe low voltage network are generally operated with unitypower factor. However, controlling their reactive powerinjection would have an impact on the voltage at theirconnection point, if the network is sufficiently weak andinductive. The purpose of this paper is to investigate how asmall-scale distributed generator connected to

A decomposition of the field of the wave equation in three dimensions is suggested. This wave splitting decomposes the field into two components such that in free space simple propagation properties are obtained. The inhomogeneous region is assumed to have a phase velocity variation that varies only in the radial coordinate r from the origin. The suggested wave splitting is a generalization of the

In traditional diffusion MRI, short pulsed field gradients (PFG) are used for the diffusion encoding. The standard Stejskal-Tanner sequence uses one single pair of such gradients, known as single-PFG (sPFG). In this work we describe how trajectories in q-space can be used for diffusion encoding. We discuss how such encoding enables the extension of the well-known scalar b-value to a tensor-valued

BACKGROUND: Preterm birth remains the major risk factor for the development of intraventricular hemorrhage, an injury that occurs in 25% of very low birth weight infants. Intraventricular hemorrhage is thought to be venous in origin and intrinsic thromboses in the germinal matrix are likely to play a triggering role. Antithrombin, a glycoprotein synthesized in the liver, is the major plasma inhibi

Dame Margaret Drabble’s The Millstone can profitably be read as shedding light on personal identity and moral development as well as how these connect to contemporary society, history, friendship, self-knowledge and self-deception in a way that ought to be of interest to classic perfectionist theories, i.e. ethical theories that develop an account of ethics informed by an account of the good human

Mi’kmaq Indians’ descriptions of journeys between parallel worlds, as we find them in tales collected from the early seventeenth century to the earlier twentieth, are far too complex to fit into Mircea Eliade’s model of shamanism or romantic images of Indians as being “one with nature”. The tales reveal six parallel worlds in which all types of beings belongs to families, have wigwams, and search

The O 1s core level of three different Bi-Sr-Ca-Cu-O superconductors has been studied by means of high-resolution x-ray-photoelectron spectroscopy (XPS) and x-ray-absorption spectroscopy (XAS). The O 1s XPS spectra could be decomposed into three components that were unambiguously assigned to the emission from the three different oxide layers in the crystal structure. These are, in order of increas

OBJECTIVE: Lipids are central to the development of atherosclerotic plaques. Specifically, which lipids are culprits remains controversial, and promising targets have failed in clinical studies. Sphingolipids are bioactive lipids present in atherosclerotic plaques, and they have been suggested to have both proatherogenic and antiatherogenic. However, the biological effects of these lipids remain u

The stability of KAISi3O8 hollandite-type structure is investigated in a series of synthesis experiments between 20 and 95 GPa at 650(±50) °C and between 1200 to 2300 °C, using electrically- and laser-heated diamond anvil cells, respectively. Potassium feldspar transformed to a hollandite-type structure in the experimental pressure range from 20 to 95 GPa at temperatures between 1200 to 2300 °C, w

The purpose of this paper is to interpret an American military media strategy designed for the Iraq war from a perspective drawing on recent theoretical discussions of space and time. The material consists of a short white paper that was declassified under the Freedom of Information Act and published by the NSA in 2007. It outlines a ‘Rapid Reaction Media Team’ which was tasked with designing and