Results 261 to 270 of about 142,268 (297)
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Ugeskrift for Læger, 2014
In Denmark 4,456 metal-on-metal (MoM) hip prostheses have been implanted. Evidence demonstrates that some patients develope adverse biological reactions causing failures of MoM hip arthroplasty. Some reactions might be systemic. Failure rates are associated with the type and the design of the MoM hip implant.
Ulrich, Michael +2 more
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In Denmark 4,456 metal-on-metal (MoM) hip prostheses have been implanted. Evidence demonstrates that some patients develope adverse biological reactions causing failures of MoM hip arthroplasty. Some reactions might be systemic. Failure rates are associated with the type and the design of the MoM hip implant.
Ulrich, Michael +2 more
openaire +2 more sources
1986
Publisher Summary This chapter discusses applications of metals on a model traction engine and drinking cans. The most notable part of the traction engine made from copper is the boiler and its fire tubes. In full size, this would have been made from mild steel, and the use of copper in the model is a nice example of how the choice of material can ...
David R.H. Jones, Michael F. Ashby
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Publisher Summary This chapter discusses applications of metals on a model traction engine and drinking cans. The most notable part of the traction engine made from copper is the boiler and its fire tubes. In full size, this would have been made from mild steel, and the use of copper in the model is a nice example of how the choice of material can ...
David R.H. Jones, Michael F. Ashby
openaire +3 more sources
Metal-on-metal Bearing Surfaces
Journal of the American Academy of Orthopaedic Surgeons, 2009Metal-on-metal bearing couples remain a popular option in total hip arthroplasty and are the only currently available option for surface replacement arthroplasty. In general, the intermediate-term clinical performance of metal-on-metal bearings has been favorable.
Robert M. Urban +5 more
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2014
In diesem Abschnitt wenden wir uns Verbindungen zu, bei denen zwischen zwei oder mehreren Metallatomen eine kovalente Bindung diskutiert wird. Bei der Einfuhrung der 18-VE-Regel (Kap. 3.2) wurde bereits die Moglichkeit von Metall-Metall-Bindungen erwahnt.
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In diesem Abschnitt wenden wir uns Verbindungen zu, bei denen zwischen zwei oder mehreren Metallatomen eine kovalente Bindung diskutiert wird. Bei der Einfuhrung der 18-VE-Regel (Kap. 3.2) wurde bereits die Moglichkeit von Metall-Metall-Bindungen erwahnt.
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Metal–Insulator–Metal Transistors
Advanced Materials, 2008A metal–insulator–metal field‐effect transistor has been fabricated. The device performance was achieved by reducing the density of states by only partially covering the substrate, which increases the relative field effect. An infinite on–off ratio, no lower limit to device dimensions, a generally enhanced flexibility in design, and low production ...
Xiang, HF +4 more
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Metal on Metal: Is It Worth the Risk?
The Journal of Arthroplasty, 2010There has been an explosion in the use of metal-on-metal bearings in the last 5 years throughout the world. This has mostly been driven by the use of metal bearings in resurfacing, although metal heads have also been used in conjunction with primary total hip arthroplasties.
Crawford, Ross +2 more
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Applications of Surface Science, 1982
Abstract The progress of understanding of the epitaxy of metals on metals achieved in the last decade with improved conventional methods and with surface analytical techniques is illustrated with three groups of film substrate pairs: fcc and hcp metals on W and Mo (110) surfaces.
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Abstract The progress of understanding of the epitaxy of metals on metals achieved in the last decade with improved conventional methods and with surface analytical techniques is illustrated with three groups of film substrate pairs: fcc and hcp metals on W and Mo (110) surfaces.
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Sealing Technology, 2004
Abstract Process developments over the past 30 years, demanding ultrahigh vacuum, high temperatures and high pressures, have driven the need for advanced technology seals. This article explains how metal-to-metal gaskets have evolved to comply with the most demanding requirements and provide both resilience and low assembly forces.
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Abstract Process developments over the past 30 years, demanding ultrahigh vacuum, high temperatures and high pressures, have driven the need for advanced technology seals. This article explains how metal-to-metal gaskets have evolved to comply with the most demanding requirements and provide both resilience and low assembly forces.
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International Journal of Quantum Chemistry, 1981
AbstractIn this survey paper the main properties of metal–metal bonds are summarized. The results of several calculations on compounds containing such bonds are analyzed.
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AbstractIn this survey paper the main properties of metal–metal bonds are summarized. The results of several calculations on compounds containing such bonds are analyzed.
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1982
Publisher Summary This chapter presents the studies of the effects of metal antagonists, such as iron chelators, deferasirox, deferiprone, and deferoxamine. The effectiveness of iron chelators is illustrated by the tremendous improvements in both life expectancy and quality of life in patients with thalassemia because of structured and rigorous ...
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Publisher Summary This chapter presents the studies of the effects of metal antagonists, such as iron chelators, deferasirox, deferiprone, and deferoxamine. The effectiveness of iron chelators is illustrated by the tremendous improvements in both life expectancy and quality of life in patients with thalassemia because of structured and rigorous ...
openaire +2 more sources