BACKGROUND The composition of cosmetic tattoos might prove relevant to their treatment by high-powered lasers. OBJECTIVES To test the accuracy and completeness of information supplied by the tattoo ink manufacturers and to perform an elemental assay of tattoo pigments using scanning electron microscopy with energy-dispersive x-ray analysis. DESIGN Samples of 30 tattoo inks were examined usi...

In this work, silicon nitride (Si3N4) thin films were deposited on metallic substrates (aluminium and titanium sheets) by the DC reactive sputtering technique using two different targets (n-type p-type Si wafers) as well Ar:N2 gas mixing ratios (50:50 70:30). The electrical conductivity of titanium) was measured before after deposition both surfaces substrates. results obtained from work showed...

introduction: the information recorded in medical sheets can help us facilitate the treatment process, recognize the quality of performance of the medical staff, plan health care programs and make accurate and appropriate decisions. this study intends to compare the quality of recording information in admission and summary sheets of three hospitals in isfahan in the first six months of 1381. ma...

In this research, the effects of the rotational speed, feed rate, tool material and lubricants on the tool life and the hole quality are studied in the frictional drilling of the titanium sheets. The friction drilling tests are performed on a CNC milling machine. Furthermore, 5 specimens are selected and their metallurgical structures are studied. The results show thatamong the input parameters...

The effects of annealing time on microstructure, mechanical properties, and corrosion resistance Ti-0.3Mo-0.8Ni (TA10) titanium alloy hot-rolled sheets are investigated. With the increase in time, α → β phase transition occurs, grain size grows gradually. strength deteriorates, elongation increases. grains grow up, number boundaries decreases, intergranular decreases. kinetics thermodynamics en...

In order to investigate the formability of granular medium forming (GMF) based on Mohr–Coulomb constitutive model with tri-axial compression test and true stress–strain curves TA1 titanium alloy from uniaxial tensile tests, numerical simulation sheet deep drawing finite element method was performed, tests were also carried out. Simulation analysis results show that GMF process is suitable for s...