Software tracing techniques are well-established and used by instrumentation tools to extract run-time information for program analysis and debugging. Dynamic binary instrumentation as one tool instruments program binaries to extract information. Unfortunately, instrumentation causes perturbation that is unacceptable for time-sensitive applications. Consequently we developed DIME*, a tool for d...

Abstract. Aluminum Lithium alloys are recuperating substantial interest from automotive and aerospace industries owing to their extraordinary specific strength as compared conventional aluminum (2xxx, 6xxx, 7xxx) alloys. The goal of the present investigation is study AA 8090 joints produced with unique solid-state welding technique friction stir (FSW). Tool pin profile induces remarkable influe...

Polarisation control is demonstrated in circular gainguided top-surface emitting vertical cavity lasers by etching a narrow trench near the cavity aperture. An optimum etch depth exists for which all modes are pinned in a single polarisation. The etch orientation determines the dominant polarisation state of emission by modifying the spontaneous emission coupling into each polarisation state. P...

OpenMP is an industry standard supporting a serialized program to be executed in parallel with simple compiler directives and libraries. OpenMP covers only user-directed parallelization and does not enforce to fix concurrency bugs, such as data races. However it is difficult to locate data races occurred in an execution of the program, because they may lead the program execution to be non-deter...

A wideband slotted circularly polarized (CP) patch antenna is introduced for 5–6-GHz WLAN applications. A small 14.6 14.6 mm square patch on Duroid 5880 substrate can provide a returnloss bandwidth of 11% and an axial-ratio bandwidth of 8% with a single feed. A possible reconfigurable design achievable using PIN diode or MEMS switches capable of left-hand or right-hand circular polarization is ...

Inert, spherical heterogeneities can pin three-dimensional scroll waves in the excitable Belousov-Zhabotinsky reaction. Three pinning sites cause initially circular rotation backbones to approach equilateral triangles. The resulting stationary shapes show convex deviations that increase with decreasing anchor radii. This dependence is interpreted as a transition between filament termination at ...

A meandered and a spiral stacked circular planar inverted–F antennas (PIFAs) are proposed for integration into head–implantable biomedical devices and wireless biotelemetry in the 402–405 MHz Medical Implant Communications Service (MICS) band. Designs only differ in the patch shape, feed, and shorting pin positions, while emphasis is given on miniaturization and biocompatibility. Phantom–relate...

A 16-station wear simulator of the pin-on-disc type, called RandomPOD, was designed, built, and validated. The primary area of application of the RandomPOD is wear studies of orthopaedic biomaterials. The type of relative motion between the bearing surfaces, generally illustrated as shapes of slide tracks, has been found to have a strong effect on the type and amount of wear produced. The compu...