In vitro studies investigating the influence of electric DC current on bacterial detachment have demonstrated that continuous currents of only 25-125 microA stimulated staphylococcal strains to detach from surgical stainless steel. However, DC currents produce more power that has to be dissipated by the skin as compared to alternating currents. Also, an excess of ions on the steel can cause neg...

A variety of devices such as stainless-steel or ceramic cylinders, single or multiple in design, and paper discs of several sizes are commonly used for antibiotic assays performed by the agar diffusion method. Holes cut in agar (agar wells) are wells with melted agar is often necessary to obtain uniform inhibition zones (2). This note describes a method for the preparation of agar-well plates w...

This article proposes a novel method for analyzing residual stress and deformation in butt welding on 6 mm SUS304 stainless steel plates, using MSC.MARC, a commercial finite element method software, to find the best location for jig fixtures that will minimize welding deformation. Simulation and experimental studies show that a distance of 100 mm between the jig center and the welding bead cent...

Neutronics analysis has been performed for LIBRA-LiTE. Using liquid lithium as a coolant and breeder results in more attractive neutronics performance features compared to Li17Pb83. The final focusing magnets and the front rows of the INPORT tubes have to be replaced every 1 and 3 years, respectively. The steel chamber wall, roof, and bottom plates are lifetime components. The overall reactor t...

Worldwide emission regulations on diesel particulate matter (PM) into the atmosphere have become more stringent. In Japan a new vehicular emission regulation, so called “post new long term regulation”, will be introduced since 2009. In this regulation, PM emission rate is should be less than 0.005 g/km. We have developed an uneven type of dielectric barrier discharge (DBD) reactor, which consis...

Electron beam butt welding of stainless steel (SS 304) and electrolytically tough pitched (ETP) copper plates was carried out according to central composite design of experiments. Three input parameters, namely accelerating voltage, beam current and weld speed were considered in the butt welding experiments of dissimilar metals. The weld-bead parameters, such as bead width and depth of penetrat...

AISI 301 stainless steel is a frequently used metal, especially in high temperature demands and or in part with high corrosion risk. Thin spring steel plates can be used as expansions of heat furnaces insulation and variety of all other springs. The present study has assessed the effects of temperature and thermal treatment time span on the microstructure of stainless steel 301 to achieve elast...