The model introduced in this article is designed to provide a consistent representation for both the real-world and pricing measures for the credit process. We find that good agreement with historical and market data can be achieved across all credit ratings simultaneously. The model is characterized by an underlying stochastic process that represents credit quality and default events are assoc...

We have studied in depth the performance of superficial strained Si/Si1−x Gex channel MOSFETs. To do so, we developed a two-dimensional drift-diffusion simulator including inversion layer quantization and low-field mobility curves obtained by means of a Monte Carlo simulator. We have reproduced experimental results. The dependences of the performance enhancement obtained in these devices on the...

We introduce a procedure to determine accurate and precise force-distance curves in dynamic force measurements utilizing sharp tip. While single are prone systematic, often unnoticed errors, we present their self-consistent retrieval by an alignment using repetitive with the probe oscillating at varied amplitude. By processing model data, show that provides valid curve, actual oscillation ampli...

Quantification in seismic probabilistic safety assessment (PSA) includes the convolution of hazard and fragility curves. Because it is difficult to find closed-form integration for two curves, numerical methods are widely used practice. In practical applications, number ground motion level bins limited, not clear whether limited leads conservative or optimistic results. this study, effect on qu...

third molar eruption is an unpredictable event. occasionally, mandibular third molars undergo angular changes in young adults. this rotational drift is of unknown etiology, is not predictable and may facilitate the eruption or may make the impaction worse. a rare case is presented with severe rotational drift of a mesioangularly impacted mandibular third molar.

We have used a two-dimensional drift-diffusion simulator, augmented by including accurate low-field mobility curves obtained by the Monte Carlo method, to study the operation of SiC MOSFETs both at room and high temperatures. A comparison with Si MOSFETs at room temperature is performed. Although drain current was higher in Si MOSFETs, SiC MOSFETs showed lower saturation conductance values. The...

This paper considers the motion planning problem for oriented vehicles travelling at unit speed in a threedimensional space. A Lie group formulation arises naturally and the vehicles are modelled as kinematic control systems with drift defined on the orthonormal frame bundles of particular Riemannian manifolds, specifically the three-dimensional space forms Euclidean space E, the sphere S and t...

In this paper, we give a characterization of the set of curves that may be approached by trajectories of a smooth control-a ne nonlinear system, in the topology of uniform convergence. This characterization is in terms of the drift vector field and the distribution spanned by the Lie algebra generated by the control vector fields. The characterization is valid on open sets where this distributi...

The Cox proportional hazards regression model has become the traditional choice for modeling survival data in medical studies. To introduce flexibility into the Cox model, several smoothing methods may be applied, and approaches based on splines are the most frequently considered in this context. To better understand the effects that each continuous covariate has on the outcome, results can be ...