نتایج جستجو برای: bars
تعداد نتایج: 11093 فیلتر نتایج به سال:
Statement of Problem: One of the greatest problems in metal –ceramic restorations is debonding of porcelain from dental alloys. Production of dental alloys by Iranian companies necessitates the evaluation of physical and handling properties of these products. Purpose: In this study the bond strength between porcelain and two types of base metal alloys, Supercast (with beryllium) and Minalux (wi...
We introduce PileBars, a new class of animated thumbnail-bars supporting browsing of large image datasets (hundreds or thousands of images). Since the bar is meant to be just one element of a GUI, it covers only a small portion of the screen; yet it provides a global view of the entire dataset, without any scrolling panel. Instead, thumbnails are dynamically rearranged, resized and reclustered ...
ou are called to attend to an 18-year-old risk-taking dolescent who has just crashed his skateboard. The een has been injured by a blow to his unprotected ead. Unfortunately, the teen has been rendered unonscious and airway intervention is indicated. You pen the lips of the injured teen only to discover that is jaws have been wired together from a previous raumatic event. This scenario could al...
Most quasi-static variational models of fracture are based on the splitting of the energy functional into the sum of two terms: bulk, depending on the displacement gradient, and surface, depending on the displacement discontinuities. In this paper we consider the simplest one-dimensional problem of this type, a bar stretched by a given axial displacement, and systematically compare two alternat...
The lightness of equiluminance regions of a light source appears different due to distinct properties of surrounding surfaces (lightness induction). For example, for a bar-grating stimulus in relatively low spatial-frequency, the same gray bars are perceived lighter when they are flanked by black bars, compared to those flanked by white bars (lightness contrast; Helson, 1963). However, the dire...
We present neutron scattering measurements of the dynamic structure factor of liquid helium confined to nanoscales in 25 and 34 Å mean pore diameter porous media over a range of pressures and temperatures. At low temperature and low pressure we observe well-defined phonon-roton P-R modes characteristic of liquid helium containing Bose-Einstein condensation BEC . As pressure is increased above 2...
We examine the bar instability in models with an exponential disk and a cuspy NFW-like dark matter (DM) halo inspired by cosmological simulations. Bar evolution is studied as a function of numerical resolution in a sequence of models spanning 10 DM particles including a multi-mass model with an effective resolution of 10. The goal is to find convergence in dynamical behaviour. We characterize t...
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