Contactless card payments are being introduced around the world allowing customers to use a card to pay for small purchases by simply placing the card onto the Point of Sale terminal. Contactless transactions do not require verification of the cardholder’s PIN. However our research has found the redundant verify PIN functionality is present on the most commonly issued contactless credit and deb...

The aim of this study was to morphometrically analyze the tissue response to a customized pin obtained from devitalized bovine cortical bone (DBCB-pin) implanted in the subcutaneous tissue of rats, as well as to assess its microstructural aspect by scanning electron microscopy (SEM). The pins were implanted in the subcutaneous tissue of 20 rats, which were killed at 7, 14, 28 and 60 days (5 rat...

This work is focused on the expansion of Laboratory Reactor Physics and Thermal-Hydraulics (LRT) PSI multi-physics high-resolution core solver nTF/CTF to full cycle analysis for VVERs. The development code modifications depletion calculation scheme presented in detail. 1st X2 benchmark simulated by novel solver. All necessary approximations modeling options optimize computational cost are discu...

The digitally reconfigurable surface is a pin based mechanism for creating physical threedimensional contoured surfaces from a computer aided design (CAD) input. When the digital design is properly downloaded into the device, a pin array is collectively actuated to the desired geometry. A rubber interpolation layer is held onto the tops of the pins by vacuum pressure to prevent undesired dimpli...

BACKGROUND Recent studies have shown that minichromosome maintenance (MCM) proteins (Mcm2-7) may be useful proliferation markers in dysplasia and cancer in various tissues. AIMS To investigate the use of Mcm7 as a proliferation marker in 79 lymph node negative prostate cancers and compare it with Ki-67, a commonly used cell proliferation marker. METHODS The percentage of proliferating cells...

BACKGROUND External fixation has been used extensively during recent wars as a damage control measure for fractures in coalition forces being evacuated. We hypothesize that external fixation is a safe and effective initial stabilization procedure for combat-related open fractures. METHODS Records on 55 consecutive type III tibia fractures between March 2003 and September 2007 were reviewed. W...

By modifying the angle of tilt 2 distinct tool pin shapes, both tapered with and without threaded structures, TPT threads TPNT no threads, mechanical behaviour microstructural attributes were examined for joints AZ91B alloy formed by friction stir welding. Spindle torque unique forces operating laterally axially (referred to as Y-force X-force, respectively) created at junction plate, which mon...

Defects such as porosity and cracking are serious problems in the joining of aluminium its alloys by melt welding methods. In this case, it is important that aluminum pairs welded friction stir (FSW), which depend on at a temperature below melting means stirrer pin. study, AA5182 were joined different parameters FSW. The effects tool pin profily, feed rate rotation speed temperature, force vibr...