X-Treme beamline at SLS: X-ray magnetic circular and linear dichroism at high field and low temperature

X-Treme is a soft X-ray beamline recently built in the Swiss Light Source at the Paul Scherrer Institut in collaboration with Ecole Polytechnique Federale de Lausanne. The beamline is dedicated to polarization-dependent X-ray absorption spectroscopy at high magnetic fields and low temperature. The source is an elliptically polarizing undulator. The end-station has a superconducting 7 T-2 T vector magnet, with sample temperature down to 2 K and is equipped with an in situ sample preparation system for surface science. The beamline commissioning measurements, which show a resolving power of 8000 and a maximum flux at the sample of 4.7 x 10(12) photons s(-1), are presented. Scientific examples showing X-ray magnetic circular and X-ray magnetic linear dichroism measurements are also presented

A STUDY ON THE MOISTURE TRANSPORT PROPERTIES OF THE COTTON KNITTED FABRICS IN SINGLE JERSEY STRUCTURE

WOS: 000269947800007Moisture management is defined as the ability of a garment to transport moisture away from the skin to the garment's outer surface in multi-dimensions and it is one of the key performance criteria in today's apparel industry since it has a significant effect on the human perception of moisture sensations. Because of its good water absorbing property, cotton is often used for next-to-skin wear such as t-shirts and underwear. In scope of the study, cotton yarns, produced in different yarn counts (Ne 20, Ne 30, Ne 40) and different twist values (alpha e=3.2, 3.6, 4.0) were knitted as single jersey structure in the same production conditions. The moisture management properties of the fabrics were measured in "SDL-ATLAS Moisture Management Tester". Dynamic liquid transport properties of textiles such as wetting time, maximum absorption rate, spreading speed were measured and it was determined that the effects of yarn count and yarn twist coefficient on these properties were significant. According to the overall moisture management capacity of the fabrics calculated according to measured features, it was found that all the fabrics used in this study have good moisture management capability

Corrosion behaviour of the titanium beta alloy nanotubular surface in the presence of fluoride ions

The titanium bioactivity could be increased by surface nanostructuring. Titanium alloys are using for dental implants manufacturing. It represents a specific problem because of using of the dental treatments with high concentration of fluoride ions and with acidic pH. The corrosion resistance of nanostructured surface of titanium beta alloy in environments with fluoride ions was examined by common electrochemical technique. The electrochemical impedance measurement showed high corrosion resistance in physiological solution. The fluoride ions have expected negative influence on corrosion behaviour of the layer. The nanotube bottom was preferentially attacked which resulted in layer undercoroding and its detachment