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Twin-scroll turbocharger turbine stage evaluation of experimental data and simulations

In this study a novel comparison of CFD, measured data and a ID-model is presented for a Twin-scroll turbocharger turbine stage. Both full and single admission flow divisions were taken into consideration and shown to represent "on-engine" conditions in the high and low engine rpm range respectively for a heavy-duty 6-cylinder diesel engine. With this in mind, the turbine stage was evaluated for e

(e,e'p) reaction at true quasielastic kinematics in 16O, 12C, and 208Pb at JLab

The reactions 16O(e,e'p) 15N, 208Pb(e,e'p) 207Tl and 12C(e,e'p) 11B were measured in experiments E00-102 and E06-007 performed at JLab (VA, USA) at true quasielastic kinematics (xB = 1) with constant energy (ω) and momentum (q) transferred over a wide pmiss range. These experiments address several open issues in nuclear structure such as the role of relativity and of long-range correlations in the

The MAX IV imaging concept

The MAX IV Laboratory is currently the synchrotron X-ray source with the beam of highest brilliance. Four imaging beamlines are in construction or in the project phase. Their common characteristic will be the high acquisition rates of phase-enhanced images. This high data flow will be managed at the local computing cluster jointly with the Swedish National Computing Infrastructure. A common image

The Coherent Bremsstrahlung Beam at MAX-lab Facility

The linearly polarized photon beam for photonuclear researches has been produced at MAX-lab facility on the base of coherent bremsstrahlung process of electrons in a diamond crystal. Test experiments have been performed at electron energies 143.9 and 192.7 MeV with a diamond crystal 0.1 mm thick. The measured coherent bremsstrahlung spectra demonstrate typical features to be observed at higher ele

Radiation Spectra of 200 MeV Electrons in Diamond and Silicon Crystals at Axial and Planar Orientations

Results of the first experiment on studying the radiation spectra of electrons with energy 192 7 MeV in diamond and silicon crystals at axial and plane orientation performed at the MAX-lab facility were presented. At these orientation the particle's motion can be both regular, when axial and planar channeling are possible, and chaotic, when the coherent electron interaction with single strings rev

Irregularity and lack of p waves in short tachycardia episodes predict atrial fibrillation and ischemic stroke

Background: Atrial fibrillation (AF) is defined as an irregular supraventricular tachycardia (SVT) without p waves, with duration >30 seconds. Whether AF characteristics during short SVT episodes predict AF and stroke is not known. Objective: The purpose of this study was to determine whether irregularity and lack of p waves, alone or in combination, during short SVT episodes increase the risk of

Deterministic Lateral Displacement for Cell Separation

In the fields of medicine and biology, the separation of particles is a central step in many preparative and analytical processes. Deterministic Lateral Displacement (DLD) has been a promising technique in the field of microfluidic particle and cell sorting, specifically for label-free separation with several applications of sorting by size, morphology, and deformation reported in the literature o

Predictable, collaborative and safe: Healthcare provider experiences of introducing brief admissions by self-referral for self-harming and suicidal persons with a history of extensive psychiatric inpatient care

People with severe self-harming behavior and histories of lengthy psychiatric inpatient admissions can represent a challenge to care providers. This interview-based study illuminates healthcare provider experiences (n = 12) of Brief Admission (BA) among self-harming individuals, with >180 days of psychiatric admission the previous year. Qualitative content analysis revealed that providers experien

Two-photon fluorescence laser sheet imaging for high contrast visualization of atomizing sprays

Two-photon excitation laser induced fluorescence (2p-LIF) is used here for imaging an optically dense atomizing spray. The main advantage of the approach is that very little fluorescence interference originating from multiple light scattering is generated. This leads to high image contrast and a faithful description of the imaged fluid structures. While point measurement 2p-LIF imaging is a well-k

Isogeometric Analysis of Soil Plasticity

In this paper we present numerical simulations of soil plasticity using isogeometric analysis comparing the results to the solutions from conventional finite element method. Isogeometric analysis is a numerical method that uses nonuniform rational B-splines (NURBS) as basis functions instead of the Lagrangian polynomials often used in the finite element method. These functions have a higher-order

A numerical method for analysis of fracture statistics of glass and simulations of a double ring bending test

The results from a new numerical method for simulating the strength and fracture locations of small glass specimens subjected to double ring bending are compared with experimental data. The method implements the weakest-link principle while assuming the existence of Griffith flaws. A Weibull distribution for the strength is simulated based on a single population of Pareto distributed crack sizes.

Performance of standard statistical distributions for modelling glass fracturee

Experimental data on the strength of new annealed float glass tested in an ambient environment was collected. A comparison was made between four standard distributions, the normal, lognormal, Gumbel and Weibull, with respect to the performance in modelling the strength. The Weibull distribution outperformed the normal and lognormal distributions when the data contained edge only failure origins. W

On the applicability of the Weibull distribution to model annealed glass strength and future research needs

The applicability of the Weibull distribution to model the strength of glass, the existence of a size effect on the strength and the need for a non-destructive testing of the strength are discussed and reviewed. There are a growing number of studies that put into question the applicability of the Weibull distribution to model annealed glass fracture data. A recent study indicates that the breakage

An analysis of glass fracture statistics

A numerical method is applied to model the fracture stress and failure location in glass panes subjected to various bending arrangements. The method assumes the weakest-link principle and the existence of surface microcracks. The fracture stress and failure origin are revealed through a search algorithm. The magnitude of strength and the location of fracture are stochastic in nature and can be pre