ALEGRA-MHD : Version 4.0.

ALEGRA is an arbitrary Lagrangian-Eulerian finite element code that emphasizes large distortion and shock propagation in inviscid fluids and solids. This document describes user options for modeling magnetohydrodynamic, thermal conduction, and radiation emission effects

Fielding the magnetically applied pressure-shear technique on the Z accelerator (completion report for MRT 4519).

The recently developed Magnetically Applied Pressure-Shear (MAPS) experimental technique to measure material shear strength at high pressures on magneto-hydrodynamic (MHD) drive pulsed power platforms was fielded on August 16, 2013 on shot Z2544 utilizing hardware set A0283A. Several technical and engineering challenges were overcome in the process leading to the attempt to measure the dynamic strength of NNSA Ta at 50 GPa. The MAPS technique relies on the ability to apply an external magnetic field properly aligned and time correlated with the MHD pulse. The load design had to be modified to accommodate the external field coils and additional support was required to manage stresses from the pulsed magnets. Further, this represents the first time transverse velocity interferometry has been applied to diagnose a shot at Z. All subsystems performed well with only minor issues related to the new feed design which can be easily addressed by modifying the current pulse shape. Despite the success of each new component, the experiment failed to measure strength in the samples due to spallation failure, most likely in the diamond anvils. To address this issue, hydrocode simulations are being used to evaluate a modified design using LiF windows to minimize tension in the diamond and prevent spall. Another option to eliminate the diamond material from the experiment is also being investigated

The detection, survival and persistence of Staphylococcus capitis NRCS-A in neonatal units in England

BACKGROUND: The multi-drug resistant Staphylococcus capitis clone, NRCS-A is increasingly associated with late-onset sepsis in low birthweight newborns in neonatal intensive care units (NICUs) in England and globally. Understanding where this bacterium survives and persists within the NICU environment is key to developing and implementing effective control measures. AIM: To investigate the potential for S. capitis to colonise surfaces within NICUs. METHODS: Surface swabs were collected from four NICUs with and without known NRCS-A colonisations/infections present at the time of sampling. Samples were cultured and S. capitis isolates analysed via whole genome sequencing. Survival of NRCS-A on plastic surfaces was assessed over time and compared to that of non-NRCS-A isolates. The bactericidal activity of commonly used chemical disinfectants against S. capitis was assessed. FINDINGS: Of 173 surfaces sampled, 40 (21.1%) harboured S. capitis with 30 isolates (75%) being NRCS-A. Whilst S. capitis was recovered from surfaces across the NICU, the NRCS-A clone was rarely recovered from outside the immediate neonatal bedspace. Incubators and other bedside equipment were contaminated with NRCS-A regardless of clinical case detection. In the absence of cleaning, S. capitis was able to survive for 3 days with minimal losses in viability (< 0.5 log10 reduction). Sodium troclosene and a QAC-based detergent/disinfectant reduced S. capitis to below detectable levels. CONCLUSION: S. capitis NRCS-A can be readily recovered from the NICU environment, even in units with no recent reported clinical cases of S. capitis infection, highlighting a need for appropriate national guidance on cleaning within the neonatal care environment

ALEGRA-MHD : version 4.6

ALEGRA is an arbitrary Lagrangian-Eulerian finite element code that emphasizes large distortion and shock propagation in inviscid fluids and solids. This document describes user options for modeling resistive magnetohydrodynamic, thermal conduction, and radiation emission effects

ALEGRA-HEDP : version 4.6.

ALEGRA is an arbitrary Lagrangian-Eulerian finite element code that emphasizes large distortion and shock propagation in inviscid fluids and solids. This document describes user options for modeling resistive magnetohydrodynamics, thermal conduction, and radiation transport effects, and two material temperature physics

ALEGRA : version 4.6.

ALEGRA is an arbitrary Lagrangian-Eulerian multi-material finite element code used for modeling solid dynamics problems involving large distortion and shock propagation. This document describes the basic user input language and instructions for using the software

The Impact Gap Profiler, a diagnostic and development tool for leaders at all levels

The Impact Gap Profiler is a model created to help individuals hone their speaking skills. In many academic and business situations good content is not sufficient to hold the audience’s attention. In business situations, the listener’s attention can be harder to attract than the academic’s. Our work with very competent second language users of English over more than forty years indicates that fluency, grammatically correct, and even advanced English does not make a great speaker. So, the model was designed both to describe current skill levels visually and to indicate skill gaps to be addressed. In trialing the tool, we realized that it also works efficiently with mother–tongue speakers as a diagnostic tool and as a construct to hang specific advice and recommendations.Impact Gap Profiler to model, który został opracowany jako narzędzie do podnoszenia kompetencji oratorskich. W wielu sytuacjach, czy to w pracy akademickiej, czy w biznesie, dobra treść to za mało, żeby utrzymać uwagę audytorium. W sytuacjach biznesowych uwagę słuchacza może być trudniej przyciągnąć niż w akademickich. Nasze ponad 40-letnie doświadczenie w pracy z osobami, dla których język angielski jest drugim językiem, wskazuje na to, że płynność językowa, poprawność gramatyczna, a nawet zaawansowane umiejętność w posługiwaniu się językiem angielskim, wszystko to, nie czyni z osoby krasomówcy. Odpowiedzią na to jest nasz model, który został zbudowany, aby graficznie opisywać bieżące umiejętności językowe oraz żeby wskazywać na braki w ich zakresie. W testach narzędzie sprawdziło się doskonale również w pracy z osobami, dla których język angielski jest pierwszym językiem

One-Dimensional Kinetic Ion Model for the Start Up of a Field-Reversed Mirror

U of I OnlyRestricted to UIUC communit

An Application of the Lie Group Theory of Continuous Point Transformations to the Vlasov-Maxwell Equations (Plasma Physics)

187 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1985.The concept of invariance of partial differential equations under Lie groups of continuous point transformations is employed to study the Vlasov-Maxwell equations of plasma physics. These equations are first expressed in arbitrary orthogonal, curvilinear coordinates. Their invariance properties are studied in Cartesian, cylindrical and spherical geometries. One-to-one mappings between the admitted groups of point transformations in the different geometries are demonstrated.The invariance properties of the electrostatic Vlasov-Maxwell equations in one-dimensional Cartesian, cylindrical and spherical geometries are also studied. Group invariants are used to reduce these equations to similarity form with one less independent variable. An attempt is made to solve the reduced Vlasov-Maxwell equations for a particular self-similar solution.Finally, relationships are demonstrated between the groups of point transformations admitted by the Vlasov-Maxwell equations and the groups of point transformations admitted by the moment equations derivable from the Vlasov-Maxwell equations.U of I OnlyRestricted to the U of I community idenfinitely during batch ingest of legacy ETD