On Hard Anodize

SYMPOSIUM: UPDATE ON HARD-ON-HARD BEARINGS IN HIP ARTHROPLASTY Survival of Hard-on-Hard Bearings in Total Hip Arthroplasty

Background Improvements in prosthetic materials, designs, and implant fixation for THA have led to bearing surface wear being the limitation of this technology. Hardon-hard bearings promise decreased wear rates and increased survival. However, there may be different survival rates based on bearing materials, manufacturing technologies, and femoral component designs. Additionally, survival rate ...

On hard instances

Instance complexity was introduced by Orponen, Ko, Schh oning, and Watanabe 14] as a measure of the complexity of individual instances of a decision problem. Comparing instance complexity to Kolmogorov complexity, they introduced the notion of p-hard instances, and conjectured that every set not in P has p-hard instances. Whereas this conjecture is still unsettled, Fortnow and Kummer 6] proved ...

New Results on Hard Disk and Hard Ball Scattering

1 Generalities In the following I will describe new data (see gures 1-16) about the following systems: 1. A1 resonances in the two-dimensional 2-disk scattering system, 2. B1 resonances in the two-dimensional 2-disk scattering system, 3. A1 resonances in the two-dimensional 3-disk scattering system, 4. the shape resonances in the two-dimensional 1-disk scattering system, 5. m = 0 and jmj = 1 re...

Tribocorrosion in Hard-on-Hard Total Hip Replacement Bearing Couples

CMS Results on Hard Diffraction

Diffractive processes contribute a significant fraction to the total inelastic proton-proton cross sections at high energies. These reactions can be described in terms of the exchange of a pomeron, a hypothetical object with the quantum numbers of the vacuum. The experimental signatures of diffractive events are the presence of non-exponentially suppressed large rapidity gaps and/or presence of...