accumulative roll-bonding (arb) is a severe plastic deformation process that is using rolling to produce ultrafine grains in coarse grained metallic materials. in this study, arb has been applied on 70/30 brass up to 6 cycles at ambient temperature and non-lubricated conditions to apply a true strain up to 4.8 von mises strain. microstructures of arbed brass samples were characterized by scanni...

The choice of roll stabilization system is critical for many types of ships. For warships where operational activities are fast and the concept of time is very effective, determining the most appropriate of these systems is of particular importance. Some operations, such as the landing of the helicopter on board, are critical for naval ships. Unwanted rolling motion makes this difficult. In add...

We report on the fabrication of short-channel polymer organic thin-film transistors ~OTFTs! using nanoimprint lithography. Currently, there is significant interest in OTFTs due to their potential application in inexpensive, large-area electronics. However, polymer carrier mobilities are typically poor, and thus to increase the OTFT drive current per unit area, there is a need for short-channel ...

Recently, sputtered metal-oxide-based field effect transistors (FETs) have been demonstrated with higher charge carrier mobilities, higher current densities, and faster response performance than amorphous silicon FETs, which are the dominant technology used in display backplanes [1-2]. Furthermore, the optically transparent semiconducting oxide films can be deposited in a near-room-temperature ...

The present article includes a video designed to show the reader/viewer how to obtain a better lip roll in primary and secondary cleft lips as well as in traumatic cleft lips. The key is to not damage the delicate glands and fat in the lip roll. The actual surgery demonstrated in the video is a cleft lip redo with an effaced lip roll.

Spatial orientation of the angular vestibuloocular reflex (aVOR) was studied in rhesus monkeys after complete and partial ablation of the nodulus and ventral uvula. Horizontal, vertical, and torsional components of slow phases of nystagmus were analyzed to determine the axes of eye rotation, the time constants (Tcs) of velocity storage, and its orientation vectors. The gravito-inertial accelera...

Rollover is one of the most dangerous events in driving Vehicles, specially the Sport Utility ones. This maneuver is the main reason for the majority of human and financial loss in transportation systems. The upcoming paper outlines the details as well as the plus points of a Fuzzy Logic Controller which is designed and simulated to reduce the rollover propensity of Vehicles, specially the ones...

Beta roll motifs are associated with several proteins secreted by the type 1 secretion system (T1SS). Located just upstream of the C-terminal T1SS secretion signal, they are believed to act as calcium-induced switches that prevent folding before secretion. Bordetella pertussis adenylate cyclase (CyaA) toxin has five blocks of beta roll motifs (or repeats-in-toxin motifs) separated by linkers. T...

We read with interest the editorial by Chung discussing advantages of radio-guided occult lesion localisation (ROLL) over other commonly used pre-operative localisation techniques for breast tumours. While the results from our audited introduction of ROLL support the conclusion that ROLL is “a simple and effective solution for guiding the excision of impalpable breast lesions”, two important dr...