Search results

Filter

Filetype

Your search for "*" yielded 530841 hits

Examples of Peirce decomposition for compact simple Kantor triple systems

Every tripotent which is a left unit of a compact simple Kantor triple system defines a decomposition of the space of the triple into a direct sum of four components, hence it defines a generalization of the Peirce decomposition for Jordan triple systems. We give examples of the Peirce decomposition for classical compact simple Kantor triple systems and for (exceptional) compact simple Kantor trip

Application of ionic liquids in analytical chemistry

Room-temperature ionic liquids (ILs) are gaining wide recognition as novel solvents in chemistry. Their application in analytical chemistry, especially in separating analytes, is merited because ILs have some unique properties, such as negligible vapor pressure, good thermal stability, tunable viscosity and miscibility with water and organic solvents, as well as good extractability for various org

Insulating surface layer on single crystal K3C60

Using angle-dependent photoemission spectra of core and valence levels we show that metallic, single crystal K3C60 is terminated by an insulating or weakly-conducting surface layer. We attribute this to the effects of strong intermolecular correlations combined with the average surface charge state. Several controversies on the electronic structure are thereby resolved.

Excited States in 103Sn: Neutron Single-particle Energies with Respect to 100Sn

Gamma-ray lines from Sn-103 have been identified for the first time using EUROBALL and ancillary detectors. The level scheme of Sn-103 has been established by means of particle-gated gamma gamma coincidences. The energy spacing between the g(7/2) and d(5/2) neutron single-particle orbitals is determined from the excited states in Sn-103.

The Bismuth Abundance in the HGMN Stars chi Lupi and HR 7775 and Improved Atomic Data for Selected Transitions of BI I, BI II, and BI III

High-resolution spectra of the chemically peculiar HgMn stars chi Lupiand HR 7775, obtained with the Hubble Space Telescope/Goddard HighResolution Spectrograph, are investigated for their abundance of bismuthby comparison with LTE synthetic spectrum modeling. HR 7775, previouslyknown from International Ultraviolet Explorer spectra to display stronglines of Bi II, is determined to have bismuth pres

Electron mean free path for GaAs(100)-c(4x4) at very low energies

Electron mean free path (MFP) was determined by the angular resolved photoemission in 10-40 eV energy range for GaAs(100)-c(4 x 4) by the overlayer method. The investigation was based on the attenuation of the normal photoemission intensity of the Al 2p line from the molecular-beam-epitaxy grown GaAlAs layer buried four monolayers of GaAs below the surface. The energy dependence of the MFP shows a

Conditions and consequences of medical futility - from a literature review to a clinical model

Objectives: To present an analysis of futility that is useful in the clinical setting. Design: Literature review. Material and methods: According to Medline more than 750 articles have been published about medical futility. Three criteria (language, time period, and the authors expressed their own opinions) singled out 43 of them. The authors opinions about futility were analysed using the scheme:

A numerical study of effect of initial condition on large eddy simulation of thermal plume

Large eddy simulations of thermal plume in two different scenarios have been carried out using a self-developed parallel computational fluid dynamics (CFD) code, SMAFS (Smoke Movement And Flame Spread), with subgrid-scale turbulence modeled using the Smagorinsky model. Two different initial conditions were used in the simulations, and the results were compared to show that the initial condition ha

Variational surface interpolation from sparse point and normal data

Many visual cues for surface reconstruction from known views are sparse in nature, e.g., specularities, surface silhouettes, and salient features in an otherwise textureless region. Often, these cues are the only information available to an observer. To allow these constraints to be used either in conjunction with dense constraints such as pixel-wise similarity, or alone, we formulate such constra

Nodule detection in digital chest radiography: Part of image background acting as pure noise

There are several factors that influence the radiologist's ability to detect a specific structure/lesion in a radiograph. Three factors that are commonly known to be of major importance are the signal itself, the system noise and the projected anatomy. The aim of this study was to determine to what extent the image background acts as pure noise for the detection of subtle lung nodules in five diff

Riskanalys av två ytbehandlingsindustrier i Jönköpings län

Riskanalysen har genomförts av institutionen för brandteknik, Lunds tekniska högskola, i samarbete med räddningstjänsten i Jönköping. Riskanalysen gjordes på uppdrag av Statens räddningsverk och ingår som en del i deras projekt om kommunal riskhantering. De inblandade har från brandteknik varit Göran Holmstedt (projektledare), och Jan-Erik Öst. Från räddningstjänsten i Jönköping har Clas Lövgren d

Transition rates of the intercombination UV0.01 multiplet in N II

The transition rates of the intercombination lines 2s2p(3 5)S(2)(0)-->2s(2)2p(2 3)P(1,2) are computed using a systematic configuration interaction method (SCIV3). The calculated lifetime of the upper S-5(2)o, level is in excellent agreement with a recent experiment. The branching ratio of the two lines is very different from earlier, less accurate theoretical values.

Rectum carried drugs may spread hepatitis A among drug addicts

An hepatitis A epidemic among 36 persons, mainly drug addicts, occurring over an 18-week period, is described. There were indications that smuggling and transportation of narcotic drugs in the rectum started the outbreak, either through direct contamination of the drug or manipulation of the drug resulting in contaminated fingers.

Experiments with artificial haptic perception in a robotic hand

The LUCS Haptic Hand I together with a set of haptic models is the first in a series of projects aimed at studying haptic perception for building several robotic hands together with cognitive computational models of the corresponding human neurophysiology. The haptic systems have been trained and tested with a set of objects consisting of balls and cubes, and the activation in the modules correspo