Introduction: Previous studies have shown that the ultra-high molecular weight polyethylene (UHMWPE) used in total disc replacement (TDR) will oxidize during shelf storage and following implantation1 for components gamma sterilized in air and in first-generation barrier packaging. Specifically, the areas that readily have access to bodily fluids and tissues (i.e. the rim of the Charité TDR) oxi...

Lithium metal is the ultimate anode choice for high energy density rechargeable lithium batteries. However, it suffers from inferior electrochemical performance and safety issues due to its high reactivity and the growth of lithium dendrites. It has long been desired to develop a materials coating on Li metal, which is pinhole-free, mechanically robust without fracture during Li metal depositio...

The sensitivity level of resistors used in electronic equipment to an electrostatic discharge (ESD) varies from a few hundred volts to a few tens of kilovolts. Ways to make resistors more robust to ESD are suggested. The influence on ESD robustness of resistive element's size, resistive pattern design and ohmic value is discussed. Foil and thin film technologies are compared. In order to test t...

The metallic Co catalyst for the Fischer-Tropsch reaction is prepared by reduction of Co salts impregnating microporous silica. The average size of the metallic Co clusters is determined from the average number of neighbours deduced from Co K-edge EXAFS of catalyst samples. A model EXAFS signal constructed from the scattering paths of Co metal fcc lattice with lengths up to 5 A is calibrated on...

This diagnostic, known as the segmented mask infrared imaging bolometer (SIB), uses state-of-theart infrared (IR) imaging technology to measure the temperature rise of each pixel in a two dimensional array mask sandwiching the metal foil. We have designed, constructed, installed and calibrated a version of the SIB for the Large Helical Device (LHD). This diagnostic has a two dimensional view (t...