A novel adaptive current biased CLASS-A/shallow AB RF power ampli ̄er is demonstrated in this paper. By theoretical deduction, a prototype is described to improve the linearity of a linear PA. With the realization on Jazz 0:35 m SiGe HBT process and test veri ̄cation, the novel adaptive current biased RF power ampli ̄er shows 3 7 dB improvement of the ACPR at the output power of 19 dBm to meet the...

This paper proposes a novel curvilinear structure detector, called Optimally Oriented Flux (OOF). OOF finds an optimal axis on which image gradients are projected in order to compute the image gradient flux. The computation of OOF is localized at the boundaries of local spherical regions. It avoids considering closely located adjacent structures. The main advantage of OOF is its robustness agai...

A surgical technique using unipolar radiofrequency ablation is described, which minimizes the risk of damaging adjacent cardiac structures. The left atrium was fully mobilized. Linear, non-thrombogenic, white blistering lesions were created with a hand-held malleable pen-catheter, making oscillating movements, while preserving a stable endocardium contact, without pressing the atrial wall to ad...

Grammatical dependencies often involve elements that are not adjacent. However, most experiments in which non-adjacent dependencies are learned bracketed the dependent material with pauses, which is not how dependencies appear in natural language. Here we report successful learning of embedded NAD without pause bracketing. Instead, we induce learners to compute structure in an artificial langua...

This paper investigates the evolution of a void and an adjacent galaxy supercluster. For this purpose the quasispherical Szekeres model is employed. The Szekeres model is an exact solution of the Einstein field equations. In this way investigations of the evolution of the cosmic structures presented here can be freed from such assumptions as small amplitude of the density contrast. Studying the...

Contour Crafting is an emerging technology that uses robotics to construct free form building structures by repeatedly laying down layers of material such as concrete. The Contour Crafting technology scales up automated additive fabrication from building small industrial parts to constructing buildings. Tool path planning and optimization for Contour Crafting benefit the technology by increasin...

A data-driven indirect approach for predicting the response of existing structures induced by excavation is hereby proposed based on making full use monitoring data during excavation, which can predict deformation history research object excavation. In this article, a machine-learning-based model framework implementing constructed and treatment key issues in design implementation method describ...