This article evaluates the effect of recrystallization annealing soaking time on tribological behavior cold upsetted low carbon steel. The 40% formed steel was subjected to at 900 °C, for 10, 20, 30, 40, 50 and 60 minutes. mechanical properties hardness, tensile strength, yield strength ductility, measured through specific deformation, as well precipitation carbides microstructural analysis wer...

In this study, functionally graded Ni-Al2O3 composite coating (FGN-A) has been produced from nickel Watt’s bath containing different concentrations of Al2O3 particles. For this, different composite coatings were electroplated in the same bath with different particles concentration to find the optimum concentration of particles in which the maximum content with uniform distribution of Al2O3 part...

Background & Aims: The production of extended-spectrum-β-lactamases (ESBLs) is the main mechanism of resistance to β-lactam antibiotics. The outbreak of isolates simultaneously possessing several resistance mechanisms to β-lactam antibiotics caused a decrease in sensitivity of the confirmatory tests for ESBL. The aim of this study was the evaluation of the β-lactamase disk test...

Two oxacillin disk methods were compared with a cefoxitin disk diffusion test for detection of methicillin-resistant Staphylococcus aureus (MRSA), with PCR for mecA as the reference method. When tested with 115 MRSA and 350 methicillin-susceptible S. aureus isolates, the cefoxitin disk test (specificity 100%, sensitivity 96.5%) was superior to the oxacillin disk methods (specificity 99.1%, sens...

The regular PIN-entry method has been still the most common of authentication for systems and networks. However, PINs are easy to be captured through various attacks, including shoulder-surfing, video-recording, spyware. This could attributed involuntary nature entering original PIN during authentication. In this paper, we employ an indirect input that utilizes addition mod 10 a mini-challenge ...