Today, the capacity and the usage of the Internet is fundamentally changing. In the forthcoming years, millions of homes will have access to the Internet with fibber lines. Network companies will offer speeds of up to 1 Gbps on fibbers. Consequently ultra-high-speed applications will be enabled for low-cost, such as high-definition teleconferencing, telemedicine and advanced telecommuting for p...

Accumulative Roll-Bonding (ARB) is one of the more recently developed techniques capable of producing bulk ultra-fine grained (ufg) metals. There are still many aspects of the behavior of ufg metals that lacks an in-depth understanding, such as a generalized view of the factors that govern the cyclic deformation mechanism(s). This study aims to advance the understanding of the cyclic deformatio...

Abstract Due to their outstanding properties, ultra-fine-grained tungsten and its alloys are promising candidates be used in harsh environments, hence it is crucial understand high temperature behavior underlying deformation mechanisms. Therefore, advanced nanoindentation techniques were applied tungsten–rhenium up 1073 K. A continuous hardness decrease 0.2 $$T_{\text{m}}$$ <mml:math xmlns:mml=...

This paper describes a GA for job shop scheduling problems. Using the Giffler and Thompson algorithm, we created two new operators, THX crossover and mutation, which better transmit temporal relationships in the schedule. The approach produced excellent results on standard benchmark job shop scheduling problems. We further tested many models and scales of parallel GAs in the context of job shop...

Our aim is to development of the inspection system of wooden chopsticks, and in this paper, we develop the prototype for high-class disposable wooden chopsticks by computer vision technology. We propose a method of inspecting the four items of fine grain sample, coarse grain sample, unpeeled sample, and defective sample. Moreover, we addressed not only the proposal of the algorithm but developm...

In this paper we present the different modelling problems which a Digital Signal Processing (DSP) application designer has to tackle while refining an abstract specification relying on coarse grain data (e.g. matrices) toward a hardware implementation model relying on fine grain data (e.g. scalar). To address this problematic, we propose a modelling framework which can be used to refine an algo...

In this work, we study the influence of surface properties ultrafine grained (UFG) and coarse (CG) titanium on morphology, viability, proliferation differentiation osteoblast-like MG-63 cells. Wet chemical etching in H2SO4/H2O2 NH4OH/H2O2 solutions was used for producing surfaces with varying topography, composition wettability. The topography morphology have been studied by scanning electron m...

Although severe plastic deformation causes grain refinement of polycrystalline materials, saturation is known to be caused by simultaneous coarsening. In the present study, for ultra-fine-grained (UFG) pure Al prepared equal-channel angular pressing, we studied and coarsening processes during large simple-shear using scanning electron microscopy/electron backscatter diffraction. The changes cry...