1,113 research outputs found
Climatological estimates of precipitation and evaporation over the Baltic Proper based on COADS
The management of distal ulnar fractures in adults: a review of the literature and recommendations for treatment
The distal ulna represents the fixed point around which the radius and the hand acts in daily living. The significance of distal ulnar fractures is often not appreciated and often results in inadequate treatment in comparison to its larger counterpart; the radius. There is little guidance in the current literature as how to manage these fractures and their associated injuries. This paper aims to critically review the current literature and combine it with treatment suggestions based on the experience of the authors to help guide investigation and management of these often complex injuries
Air entrainment mechanisms from artificial supercavities: Insight based on numerical simulations
Using multiphase computational simulations based on the Navier-Stokes equations, we examine the internal gaseous flows of artificially ventilated supercavities. These simulations indicate that air shear layers that develop on the cavity-wall (the air-liquid interface surrounding the cavity) are an important mechanism of air entrainment. This corroborates previous theory developed for toroidal cavities, and indicates that similar mechanisms occur in twin-vortex cavities and cavities closing on bodies. The importance of these shear layers on the cavity behavior potentially impacts computational simulations, experiments, and design-level models. Lastly, a more inclusive, semi-empirical air entrainment model is presented that attempts to accommodate the observed processes.http://deepblue.lib.umich.edu/bitstream/2027.42/84310/1/CAV2009-final136.pd
An examination of thermal modeling affects to the numerical prediction of large-scale cavitating fluid flow
The importance of modeling thermal effects in cavitatingfluid is examined in the context of computational fluid dynamics. Simulations of cavitation in water are used to study the effects of thermal versus and pressure variations in the fluid properties, and their impact on predictions. These studies are extended to evaluate energyconserving approaches compared to isothermal ones, to assess the underlying thermal models influence on the predicted cavities occurring in water. Results indicate that the thermal effects remain important, but only for specific applications that need high-frequency phenomena from the numerical simulation. Low-frequency measures, needed for loading analysis, appear to be relatively insensitive to thermal effects. Lastly, various thermally driven cavitation problems requiring energy-equation conservation are presented to display applications requiring such a formulation.http://deepblue.lib.umich.edu/bitstream/2027.42/84311/1/CAV2009-final137.pd
Sexuality and Affection among Elderly German Men and Women in Long-Term Relationships: Results of a Prospective Population-Based Study
This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.The study was funded by the German Federal Ministry for Families, Senior Citizens, Women and Youth (AZ 314-1722-102/16; AZ 301-1720-295/2), the Ministry for Science, Research and Art Baden-WĂźrttemberg, and the University of Rostock (FORUN 989020; 889048)
Proxies for atmospheric circulation over the Amazon basin from the aerosol composition in a Nevado Illimani firn core, Bolivia
Construction of a Cantilever-Andreev-Tunneling rig and its applications to superconductors
A technique for point-contact spectroscopy, based on an electro-mechanical
mechanism for the contact formation, has been developed. It is designed to be
used in both He and He cryostats. The performance has been demonstrated
by conductance measurements on various kinds of superconductors, including the
conventional superconductor Nb, the two-band superconductor MgB, and the
heavy-fermion superconductor CeCoIn. Characteristic conductance spectra
obtained prove this technique is useful for the investigation of the
superconducting order parameter. Advantages of this technique such as its
simplicity and versatility are described.Comment: 7 Pages, 7 figures, typeset in LaTeX, submitted to Rev. Sci. Instru
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