As Model-Based Engineering (MBE) starts to be effectively used, some of its constituent disciplines such as Domain Specific Modeling and Metamodeling are becoming quite popular. Metamodels play a cornerstone role in these approaches, not only for defining Domain Specific Languages but also for specifying all kinds of artifacts involved in MBE. However, there is a lack of appropriate quality mod...

Transmission electron microscopy has been combined with time-resolved reflectivity and ion channeling to study the effects of carbon doping on solid-phase epitaxial regrowth �SPER� of strained 2000 Å, Si0.88Ge0.12Si alloy layers grown by molecular-beam epitaxy �MBE�. Relative to the undoped layers, carbon incorporation in the MBE grown SiGe layers prior to regrowth at moderate temperatures �500...

We report large scale Monte Carlo simulations of the equilibrium discrete Laplacian roughening (dLr) model, originally introduced as the simplest one accommodating the hexatic phase in two-dimensional melting. The dLr model is also relevant to surface roughening in molecular beam epitaxy (MBE). Our data suggest a single phase transition, possibly of the Kosterlitz-Thouless type, between a flat ...

An in-depth optimization of growth conditions and investigation of optical properties including discussions on band alignment of GaAsSb/GaAs quantum well (QW) on GaAs by molecular beam epitaxy (MBE) are reported. Optimal MBE growth temperature of GaAsSb QW is found to be 470 ± 10 °C. GaAsSb/GaAs QW with Sb content ~0.36 has a weak type-II band alignment with valence band offset ratio QV ~1.06. ...

Resumo A medicina baseada em evidências (MBE) pretende aumentar a eficiência e qualidade dos serviços de saúde prestados à população diminuir os custos operacionais processos prevenção, tratamento reabilitação. Busca identificar problemas relevantes do paciente promover aplicabilidade social das conclusões. O artigo ressalta importância da MBE para o ensino as práticas clínicas sociais atualida...

Magnetoelectric multiferroic thin films exhibit coupled ferromagnetism and ferroelectricity. Interest in these multiferroics stems from their potential applications in spin-based computing and novel information storage methods. Through characterization with x-ray diffraction (XRD), atomic force microscopy (AFM), and vibrating sample magnetometry (VSM), the growth of multiferroic films with mole...

: We have studied the effects of shutter transients (STs) in molecular beam epitaxy (MBE). Two series of samples were grown by MBE and evaluated by X-ray diffraction (XRD) and X-ray reflectivity (XRR) measurements. The effects of STs were evaluated by growth rate (GR) analysis using a combination of growth time (GT) and thickness evaluated by XRD and XRR measurements. We revealed two opposite e...

In recent years, new types of semiconductor heterostructures consisting of only one material in di1erent crystal structures, such as wurtzite/zinc-blende heterostructures (heteropolytypic structures) are under discussion. Such heterostructures maintain a completely defect-free, lattice matched, and coherent interface and e1ects due to di1erent chemical constituents can be avoided. In this eld, ...

In the Model-Based Engineering (MBE) paradigm, models are the core elements in the design process of a system from its requirements to the actual implementation of the system. By means of Supervisory Control Theory (SCT), supervisory controllers (supervisors) can be synthesized instead of designing themmanually. In this paper, a framework based on the Compositional Interchange Format for hybrid...